PCA9506DGG

PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT Rev. 03 — 6 June 2007 Product data sheet 1. General description The PCA9505/PCA9506 provide 40-bit parallel input/output (I/O) port expansion for I2C-bus applications organized in 5 banks of 8 I/Os. At 5 V supply voltage, the outputs are capable of sourcing 10 mA and sinking 15 mA with a total package load of 600 mA to allow direct driving of 40 LEDs. Any of the 40 I/O ports can be configured as an input or output. Output ports are totem-pole and their logic state changes at the Acknowledge (bank change). The PCA9505 is identical to the PCA9506 except that it includes 100 kΩ internal pull-up resistors on all the I/Os. The PCA9506 does not include the internal pull-ups on the I/Os to reduce power consumption when used as outputs or when the input is driven by a push-pull driver. The device can be configured to have each input port to be masked in order to prevent it from generating interrupts when its state changes and to have the I/O data logic state to be inverted when read by the system master. An open-drain interrupt (INT) output pin allows monitoring of the input pins and is asserted each time a change occurs in one or several input ports (unless masked). The Output Enable (OE) pin 3-states any I/O selected as an output and can be used as an input signal to blink or dim LEDs (PWM with frequency > 80 Hz and change duty cycle). The internal Power-On Reset (POR) or hardware reset (RESET) pin initializes the 40 I/Os as inputs. Three address select pins configure one of 8 slave addresses. The PCA9506 is available in 56-pin TSSOP and HVQFN packages, while the PCA9505 is available only in a TSSOP package. They are both specified over the −40 °C to +85 °C industrial temperature range. 2. Features I Standard mode (100 kHz) and Fast mode (400 kHz) compatible I2C-bus serial interface I 2.3 V to 5.5 V operation with 5.5 V tolerant I/Os I 40 configurable I/O pins that default to inputs at power-up I PCA9505 includes 100 kΩ internal pull-up resistors on all the I/Os I Outputs: N Totem-pole (10 mA source, 15 mA sink) with controlled edge rate output structure N Active LOW output enable (OE) input pin 3-states all outputs N Output state change on Acknowledge N Open-drain active LOW interrupt (INT) output pin allows monitoring of logic level change of pins programmed as inputs NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT I Inputs: N Programmable Interrupt Mask Control for input pins that do not require an interrupt when their states change N Polarity Inversion register allows inversion of the polarity of the I/O pins when read I Active LOW reset (RESET) input pin resets device to power-up default state I 3 programmable address pins allowing 8 devices on the same bus I Designed for live insertion N Minimize line disturbance (IOFF and power-up 3-state) N Signal transient rejection (50 ns noise filter and robust I2C-bus state machine) I Low standby current I −40 °C to +85 °C operation I ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101 I Latch-up testing is done to JEDEC Standard JESD78, which exceeds 100 mA I Offered in TSSOP56 (PCA9505, PCA9506) and HVQFN56 (PCA9506) packages 3. Applications I I I I I I I I Servers RAID systems Industrial control Medical equipment PLCs Cell phones Gaming machines Instrumentation and test measurement 4. Ordering information Table 1. Ordering information Topside mark PCA9505DGG PCA9506DGG PCA9506BS Package Name PCA9505DGG PCA9506DGG PCA9506BS TSSOP56 TSSOP56 HVQFN56 Description plastic thin shrink small outline package; 56 leads; body width 6.1 mm plastic thin shrink small outline package; 56 leads; body width 6.1 mm plastic thermal enhanced very thin quad flat package; no leads; 56 terminals; body 8 × 8 × 0.85 mm Version SOT364-1 SOT364-1 SOT684-1 Type number PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 2 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 5. Block diagram OE PCA9505/PCA9506 A0 A1 A2 8-bit INPUT/ OUTPUT PORTS BANK 0 BANK 1 SCL SDA LOW PASS INPUT FILTERS I2C-BUS CONTROL BANK 2 BANK 3 8-bit write pulse 0 read pulse 0 IO0_0 IO0_1 IO0_2 IO0_3 IO0_4 IO0_5 IO0_6 IO0_7 write pulse 4 VDD VSS RESET POWER-ON RESET read pulse 4 INPUT/ OUTPUT PORTS BANK 4 IO4_0 IO4_1 IO4_2 IO4_3 IO4_4 IO4_5 IO4_6 IO4_7 INTERRUPT MANAGEMENT INT LP FILTER 002aab492 All I/Os are set to inputs at power-up and RESET. Fig 1. Block diagram of PCA9505/06 PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 3 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT configuration port register data (Cx[y]) I/O configuration register data from shift register write configuration pulse D Q VDD CK Q 100 kΩ output port register data (Ox[y]) PCA9505 only IOx_y data from shift register D Q ESD protection diode VSS write pulse CK output port register input port register D Q Mx[y] INTERRUPT MANAGEMENT INT input port register data (Ix[y]) read pulse CK polarity inversion register data from shift register write polarity pulse D Q polarity register data (Px[y]) 002aab493 CK On power-up or RESET, all registers return to default values. Fig 2. Simplified schematic of IO0_0 to IO4_7 PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 4 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 6. Pinning information 6.1 Pinning SDA SCL IO0_0 IO0_1 IO0_2 VSS IO0_3 IO0_4 IO0_5 1 2 3 4 5 6 7 8 9 56 RESET 55 INT 54 IO4_7 53 IO4_6 52 IO4_5 51 VSS 50 IO4_4 49 IO4_3 48 IO4_2 47 IO4_1 46 VDD 45 IO4_0 44 IO3_7 43 IO3_6 42 IO3_5 41 IO3_4 40 IO3_3 39 VSS 38 IO3_2 37 IO3_1 36 IO3_0 35 IO2_7 34 VSS 33 IO2_6 32 IO2_5 31 IO2_4 30 OE 29 A2 002aab491 IO0_6 10 VSS 11 IO0_7 12 IO1_0 13 IO1_1 14 IO1_2 15 IO1_3 16 IO1_4 17 VDD 18 IO1_5 19 IO1_6 20 IO1_7 21 IO2_0 22 VSS 23 IO2_1 24 IO2_2 25 IO2_3 26 A0 27 A1 28 PCA9505DGG PCA9506DGG Fig 3. Pin configuration for TSSOP56 PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 5 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 49 RESET 56 IO0_3 54 IO0_2 53 IO0_1 52 IO0_0 47 IO4_7 46 IO4_6 45 IO4_5 terminal 1 index area IO0_4 IO0_5 IO0_6 VSS IO0_7 IO1_0 IO1_1 IO1_2 IO1_3 1 2 3 4 5 6 7 8 9 43 IO4_4 42 IO4_3 41 IO4_2 40 IO4_1 39 VDD 38 IO4_0 37 IO3_7 36 IO3_6 35 IO3_5 34 IO3_4 33 IO3_3 32 VSS 31 IO3_2 30 IO3_1 29 IO3_0 IO2_7 28 002aab975 50 SDA 51 SCL 55 VSS PCA9506BS IO1_4 10 VDD 11 IO1_5 12 IO1_6 13 IO1_7 14 IO2_0 15 VSS 16 IO2_1 17 IO2_2 18 IO2_3 19 A0 20 A1 21 A2 22 OE 23 IO2_4 24 IO2_5 25 IO2_6 26 VSS 27 Transparent top view Fig 4. Pin configuration for HVQFN56 6.2 Pin description Table 2. Symbol SDA SCL IO0_0 to IO0_7 IO1_0 to IO1_7 IO2_0 to IO2_7 IO3_0 to IO3_7 IO4_0 to IO4_7 VSS VDD A0 A1 A2 PCA9505_9506_3 Pin description Pin TSSOP56 1 2 3, 4, 5, 7, 8, 9, 10, 12 13, 14, 15, 16, 17, 19, 20, 21 22, 24, 25, 26, 31, 32, 33, 35 36, 37, 38, 40, 41, 42, 43, 44 45, 47, 48, 49, 50, 52, 53, 54 6, 11, 23, 34, 39, 51 18, 46 27 28 29 HVQFN56 50 51 I/O I serial data line serial clock line input/output bank 0 input/output bank 1 input/output bank 2 input/output bank 3 input/output bank 4 ground supply voltage supply voltage address input 0 address input 1 address input 2 © NXP B.V. 2007. All rights reserved. Type Description 52, 53, 54, 56, 1, I/O 2, 3, 5 6, 7, 8, 9, 10, 12, I/O 13, 14 15, 17, 18, 19, 24, 25, 26, 28 29, 30, 31, 33, 34, 35, 36, 37 38, 40, 41, 42, 43, 45, 46, 47 I/O I/O I/O 4, 16, 27, 32, 44, power 55[1] supply 11, 39 20 21 22 power supply I I I Product data sheet Rev. 03 — 6 June 2007 44 VSS 48 INT 6 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT Pin description …continued Pin TSSOP56 HVQFN56 23 48 49 I O I active LOW output enable input active LOW interrupt output active LOW reset input 30 55 56 Type Description Table 2. Symbol OE INT RESET [1] HVQFN package die supply ground is connected to both VSS pins and exposed center pad. VSS pins must be connected to supply ground for proper device operation. For enhanced thermal, electrical, and board level performance, the exposed pad needs to be soldered to the board using a corresponding thermal pad on the board and for proper heat conduction through the board, thermal vias need to be incorporated in the printed-circuit board in the thermal pad region. 7. Functional description Refer to Figure 1 “Block diagram of PCA9505/06” and Figure 2 “Simplified schematic of IO0_0 to IO4_7”. 7.1 Device address Following a START condition, the bus master must send the address of the slave it is accessing and the operation it wants to perform (read or write). The address of the PCA9505/06 is shown in Figure 5. Slave address pins A2, A1, and A0 choose 1 of 8 slave addresses and need to be connected to VDD (1) or VSS (0). To conserve power, no internal pull-up resistors are incorporated on A2, A1, and A0. slave address 0 1 0 0 A2 A1 A0 R/W fixed programmable 002aab494 Fig 5. PCA9505/06 address The last bit of the first byte defines the operation to be performed. When set to logic 1 a read is selected, while a logic 0 selects a write operation. 7.2 Command register Following the successful acknowledgement of the slave address + R/W bit, the bus master will send a byte to the PCA9505/06, which will be stored in the Command register. AI 1 − 0 D5 0 D4 0 D3 0 D2 0 D1 0 D0 0 default at power-up or after RESET register number Auto-Increment 002aab495 Fig 6. Command register PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 7 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT The lowest 6 bits are used as a pointer to determine which register will be accessed. The registers are: • • • • • IP: Input Port registers (5 registers) OP: Output Port registers (5 registers) PI: Polarity Inversion registers (5 registers) IOC: I/O Configuration registers (5 registers) MSK: Mask interrupt registers (5 registers) If the Auto-Increment flag is set (AI = 1), the 3 least significant bits are automatically incremented after a read or write. This allows the user to program and/or read the 5 register banks sequentially. If more than 5 bytes of data are written and AI = 1, previous data in the selected registers will be overwritten. Reserved registers are skipped and not accessed (refer to Table 3). If the Auto-Increment flag is cleared (AI = 0), the 3 least significant bits are not incremented after data is read or written. During a read operation, the same register bank is read each time. During a write operation, data is written to the same register bank each time. Only a Command register code with the 5 least significant bits equal to the 25 allowable values as defined in Table 3 are valid. Reserved or undefined command codes must not be accessed for proper device functionality. At power-up, this register defaults to 0x80, with the AI bit set to logic 1, and the lowest 7 bits set to logic 0. During a write operation, the PCA9505/06 will acknowledge a byte sent to OPx, PIx, and IOCx and MSKx registers, but will not acknowledge a byte sent to the IPx registers since these are read-only registers. PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 8 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 7.3 Register definitions Table 3. Register # (hex) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F Register summary D5 D4 D3 D2 D1 D0 Symbol Access Description Input Port registers 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 IP0 IP1 IP2 IP3 IP4 OP0 OP1 OP2 OP3 OP4 PI0 PI1 PI2 PI3 PI4 IOC0 IOC1 IOC2 IOC3 IOC4 read only read only read only read only read only read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write read/write Input Port register bank 0 Input Port register bank 1 Input Port register bank 2 Input Port register bank 3 Input Port register bank 4 reserved for future use reserved for future use reserved for future use Output Port register bank 0 Output Port register bank 1 Output Port register bank 2 Output Port register bank 3 Output Port register bank 4 reserved for future use reserved for future use reserved for future use Polarity Inversion register bank 0 Polarity Inversion register bank 1 Polarity Inversion register bank 2 Polarity Inversion register bank 3 Polarity Inversion register bank 4 reserved for future use reserved for future use reserved for future use I/O Configuration register bank 0 I/O Configuration register bank 1 I/O Configuration register bank 2 I/O Configuration register bank 3 I/O Configuration register bank 4 reserved for future use reserved for future use reserved for future use Output Port registers Polarity Inversion registers I/O Configuration registers PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 9 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT Table 3. Register # (hex) 20 21 22 23 24 25 26 27 Register summary …continued D5 D4 D3 D2 D1 D0 Symbol Access Description Mask Interrupt registers 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 MSK0 MSK1 MSK2 MSK3 MSK4 read/write read/write read/write read/write read/write Mask Interrupt register bank 0 Mask Interrupt register bank 1 Mask Interrupt register bank 2 Mask Interrupt register bank 3 Mask Interrupt register bank 4 reserved for future use reserved for future use reserved for future use 7.3.1 IP0 to IP4 - Input Port registers These registers are read-only. They reflect the incoming logic levels of the port pins regardless of whether the pin is defined as an input or an output by the I/O Configuration register. If the corresponding Px[y] bit in the PI registers is set to logic 0, or the inverted incoming logic levels if the corresponding Px[y] bit in the PI register is set to logic 1. Writes to these registers have no effect. Table 4. IP0 to IP4 - Input Port registers (address 00h to 04h) bit description Legend: * default value ‘X’ determined by the externally applied logic level. Address 00h 01h 02h 03h 04h Register IP0 IP1 IP2 IP3 IP4 Bit 7 to 0 7 to 0 7 to 0 7 to 0 7 to 0 Symbol I0[7:0] I1[7:0] I2[7:0] I3[7:0] I4[7:0] Access R R R R R Value XXXX XXXX* XXXX XXXX* XXXX XXXX* XXXX XXXX* XXXX XXXX* Description Input Port register bank 0 Input Port register bank 1 Input Port register bank 2 Input Port register bank 3 Input Port register bank 4 The Polarity Inversion register can invert the logic states of the port pins. The polarity of the corresponding bit is inverted when Px[y] bit in the PI register is set to logic 1. The polarity of the corresponding bit is not inverted when Px[y] bits in the PI register is set to logic 0. PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 10 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 7.3.2 OP0 to OP4 - Output Port registers These registers reflect the outgoing logic levels of the pins defined as outputs by the I/O Configuration register. Bit values in these registers have no effect on pins defined as inputs. In turn, reads from these registers reflect the values that are in the flip-flops controlling the output selection, not the actual pin values. Ox[y] = 0: IOx_y = 0 if IOx_y defined as output (Cx[y] in IOC register = 0). Ox[y] = 1: IOx_y = 1 if IOx_y defined as output (Cx[y] in IOC register = 0). Where ‘x’ refers to the bank number (0 to 4); ‘y’ refers to the bit number (0 to 7). Table 5. OP0 to OP4 - Output Port registers (address 08h to 0Ch) bit description Legend: * default value. Address 08h 09h 0Ah 0Bh 0Ch Register OP0 OP1 OP2 OP3 OP4 Bit 7 to 0 7 to 0 7 to 0 7 to 0 7 to 0 Symbol O0[7:0] O1[7:0] O2[7:0] O3[7:0] O4[7:0] Access R/W R/W R/W R/W R/W Value 0000 0000* 0000 0000* 0000 0000* 0000 0000* 0000 0000* Description Output Port register bank 0 Output Port register bank 1 Output Port register bank 2 Output Port register bank 3 Output Port register bank 4 7.3.3 PI0 to PI4 - Polarity Inversion registers These registers allow inversion of the polarity of the corresponding Input Port register. Px[y] = 0: The corresponding Input Port register data polarity is retained. Px[y] = 1: The corresponding Input Port register data polarity is inverted. Where ‘x’ refers to the bank number (0 to 4); ‘y’ refers to the bit number (0 to 7). Table 6. PI0 to PI4 - Polarity Inversion registers (address 10h to 14h) bit description Legend: * default value. Address 10h 11h 12h 13h 14h Register PI0 PI1 PI2 PI3 PI4 Bit 7 to 0 7 to 0 7 to 0 7 to 0 7 to 0 Symbol P0[7:0] P1[7:0] P2[7:0] P3[7:0] P4[7:0] Access R/W R/W R/W R/W R/W Value 0000 0000* 0000 0000* 0000 0000* 0000 0000* 0000 0000* Description Polarity Inversion register bank 0 Polarity Inversion register bank 1 Polarity Inversion register bank 2 Polarity Inversion register bank 3 Polarity Inversion register bank 4 PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 11 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 7.3.4 IOC0 to IOC4 - I/O Configuration registers These registers configure the direction of the I/O pins. Cx[y] = 0: The corresponding port pin is an output. Cx[y] = 1: The corresponding port pin is an input. Where ‘x’ refers to the bank number (0 to 4); ‘y’ refers to the bit number (0 to 7). Table 7. IOC0 to IOC4 - I/O Configuration registers (address 18h to 1Ch) bit description Legend: * default value. Address 18h 19h 1Ah 1Bh 1Ch Register IOC0 IOC1 IOC2 IOC3 IOC4 Bit 7 to 0 7 to 0 7 to 0 7 to 0 7 to 0 Symbol C0[7:0] C1[7:0] C2[7:0] C3[7:0] C4[7:0] Access R/W R/W R/W R/W R/W Value 1111 1111* 1111 1111* 1111 1111* 1111 1111* 1111 1111* Description I/O Configuration register bank 0 I/O Configuration register bank 1 I/O Configuration register bank 2 I/O Configuration register bank 3 I/O Configuration register bank 4 7.3.5 MSK0 to MSK4 - Mask interrupt registers These registers mask the interrupt due to a change in the I/O pins configured as inputs. ‘x’ refers to the bank number (0 to 4); ‘y’ refers to the bit number (0 to 7). Mx[y] = 0: A level change at the I/O will generate an interrupt if IOx_y defined as input (Cx[y] in IOC register = 1). Mx[y] = 1: A level change in the input port will not generate an interrupt if IOx_y defined as input (Cx[y] in IOC register = 1). Table 8. MSK0 to MSK4 - Mask interrupt registers (address 20h to 24h) bit description Legend: * default value. Address 20h 21h 22h 23h 24h Register MSK0 MSK1 MSK2 MSK3 MSK4 Bit 7 to 0 7 to 0 7 to 0 7 to 0 7 to 0 Symbol M0[7:0] M1[7:0] M2[7:0] M3[7:0] M4[7:0] Access R/W R/W R/W R/W R/W Value 1111 1111* 1111 1111* 1111 1111* 1111 1111* 1111 1111* Description Mask Interrupt register bank 0 Mask Interrupt register bank 1 Mask Interrupt register bank 2 Mask Interrupt register bank 3 Mask Interrupt register bank 4 7.4 Power-on reset When power is applied to VDD, an internal Power-On Reset (POR) holds the PCA9505/06 in a reset condition until VDD has reached VPOR. At that point, the reset condition is released and the PCA9505/06 registers and I2C-bus state machine will initialize to their default states. Thereafter, VDD must be lowered below 0.2 V to reset the device. 7.5 RESET input A reset can be accomplished by holding the RESET pin LOW for a minimum of tw(rst). The PCA9505/06 registers and I2C-bus state machine will be held in their default states until the RESET input is once again HIGH. PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 12 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 7.6 Interrupt output (INT) The open-drain active LOW interrupt is activated when one of the port pins changes state and the port pin is configured as an input and the interrupt on it is not masked. The interrupt is deactivated when the port pin input returns to its previous state or the Input Port register is read. Remark: Changing an I/O from an output to an input may cause a false interrupt to occur if the state of the pin does not match the contents of the Input Port register. Only a read of the Input Port register that contains the bit(s) image of the input(s) that generated the interrupt clears the interrupt condition. If more than one input register changed state before a read of the Input Port register is initiated, the interrupt is cleared when all the input registers containing all the inputs that changed are read. Example: If IO0_5, IO2_3, and IO3_7 change state at the same time, the interrupt is cleared only when INREG0, INREG2, and INREG3 are read. 7.7 Output enable input (OE) The active LOW output enable pin allows to enable or disable all the I/Os at the same time. When a LOW level is applied to the OE pin, all the I/Os configured as outputs are enabled and the logic value programmed in their respective OP registers is applied to the pins. When a HIGH level is applied to the OE pin, all the I/Os configured as outputs are 3-stated. For applications requiring LED blinking with brightness control, this pin can be used to control the brightness by applying a high frequency PWM signal on the OE pin. LEDs can be blinked using the Output Port registers and can be dimmed using the PWM signal on the OE pin thus controlling the brightness by adjusting the duty cycle. 7.8 Live insertion The PCA9505/06 are fully specified for live insertion applications using IOFF, power-up 3-states, robust state machine, and 50 ns noise filter. The IOFF circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The power-up 3-state’s circuitry places the outputs in the high-impedance state during power-up and power-down, which prevents driver conflict and bus contention. The robust state machine does not respond until it sees a valid START condition and the 50 ns noise filter will filter out any insertion glitches. The PCA9505/06 will not cause corruption of active data on the bus, nor will the device be damaged or cause damage to devices already on the bus when similar featured devices are being used. 7.9 Standby The PCA9505/06 goes into standby when the I2C-bus is idle. Standby supply current is lower than 1 µA (typical). PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 13 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 8. Characteristics of the I2C-bus The I2C-bus is for 2-way, 2-line communication between different ICs or modules. The two lines are a serial data line (SDA) and a serial clock line (SCL). Both lines must be connected to a positive supply via a pull-up resistor when connected to the output stages of a device. Data transfer may be initiated only when the bus is not busy. 8.1 Bit transfer One data bit is transferred during each clock pulse. The data on the SDA line must remain stable during the HIGH period of the clock pulse as changes in the data line at this time will be interpreted as control signals (see Figure 7). SDA SCL data line stable; data valid change of data allowed mba607 Fig 7. Bit transfer 8.1.1 START and STOP conditions Both data and clock lines remain HIGH when the bus is not busy. A HIGH-to-LOW transition of the data line while the clock is HIGH is defined as the START condition (S). A LOW-to-HIGH transition of the data line while the clock is HIGH is defined as the STOP condition (P) (see Figure 8). SDA SDA SCL S START condition P STOP condition SCL mba608 Fig 8. Definition of START and STOP conditions 8.2 System configuration A device generating a message is a ‘transmitter’; a device receiving is the ‘receiver’. The device that controls the message is the ‘master' and the devices which are controlled by the master are the ‘slaves' (see Figure 9). PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 14 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT SDA SCL MASTER TRANSMITTER/ RECEIVER SLAVE RECEIVER SLAVE TRANSMITTER/ RECEIVER MASTER TRANSMITTER MASTER TRANSMITTER/ RECEIVER I2C-BUS MULTIPLEXER SLAVE 002aaa966 Fig 9. System configuration 8.3 Acknowledge The number of data bytes transferred between the START and the STOP conditions from transmitter to receiver is not limited. Each byte of eight bits is followed by one acknowledge bit. The acknowledge bit is a HIGH level put on the bus by the transmitter, whereas the master generates an extra acknowledge related clock pulse. A slave receiver which is addressed must generate an acknowledge after the reception of each byte. Also a master must generate an acknowledge after the reception of each byte that has been clocked out of the slave transmitter. The device that acknowledges has to pull down the SDA line during the acknowledge clock pulse, so that the SDA line is stable LOW during the HIGH period of the acknowledge related clock pulse; set-up and hold times must be taken into account. A master receiver must signal an end of data to the transmitter by not generating an acknowledge on the last byte that has been clocked out of the slave. In this event, the transmitter must leave the data line HIGH to enable the master to generate a STOP condition. data output by transmitter not acknowledge data output by receiver acknowledge SCL from master S START condition 1 2 8 clock pulse for acknowledgement 002aaa987 9 Fig 10. Acknowledgement on the I2C-bus 8.4 Bus transactions Data is transmitted to the PCA9505/06 registers using Write Byte transfers (see Figure 11, Figure 12, and Figure 13). Data is read from the PCA9505/06 registers using Read and Receive Byte transfers (see Figure 14). PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 15 of 31 xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx Product data sheet Rev. 03 — 6 June 2007 © NXP B.V. 2007. All rights reserved. PCA9505_9506_3 NXP Semiconductors STOP condition slave address command register DATA BANK 0 acknowledge from slave A DATA BANK 1 acknowledge from slave A DATA BANK 2 acknowledge from slave A DATA BANK 3 acknowledge from slave A DATA BANK 4 acknowledge from slave AP SDA S 0 1 0 0 A2 A1 A0 0 A 1 0 0 0 1 0 0 0 A START condition R/W acknowledge from slave AI = 1 output bank register bank 0 is selected acknowledge from slave write to port data out from port tv(Q) data valid bank 0 data valid bank 1 data valid bank 2 data valid bank 3 data valid bank 4 002aab496 OE is LOW to observe a change in the outputs. If more than 5 bytes are written, previous data are overwritten. Fig 11. Write to the 5 output ports 40-bit I2C-bus I/O port with RESET, OE and INT slave address SDA S 0 1 0 0 A2 A1 A0 0 A AI 0 0 0 1 D2 D1 D0 A START condition R/W acknowledge from slave write to port acknowledge from slave DATA BANK X AP acknowledge STOP from slave condition PCA9505/06 data out from port tv(Q) data X valid 002aab497 OE is LOW to observe a change in the outputs. Two, three, or four adjacent banks can be programmed by using the Auto-Increment feature (AI = 1) and change at the corresponding output port becomes effective at each acknowledge. 16 of 31 Fig 12. Write to a specific output port xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx Product data sheet Rev. 03 — 6 June 2007 © NXP B.V. 2007. All rights reserved. PCA9505_9506_3 NXP Semiconductors slave address command register DATA BANK 0 A DATA BANK 1 A DATA BANK 2 A DATA BANK 3 A DATA BANK 4 AP SDA S 0 1 0 0 A2 A1 A0 0 A 1 0 D5 D4 D3 D2 D1 D0 A START condition R/W acknowledge from slave AI = 1 acknowledge from slave acknowledge from slave acknowledge from slave D[5:0] = 01 0000 for Polarity Inversion register programming bank 0 D[5:0] = 01 1000 for Configuration register programming bank 0 D[5:0] = 10 0000 for Mask Interrupt register programming bank 0 acknowledge from slave acknowledge from slave acknowledge from slave STOP condition 002aab498 The programming becomes effective at the acknowledge. Less than 5 bytes can be programmed by using this scheme. D5, D4, D3, D2, D1, D0 refers to the first register to be programmed. If more than 5 bytes are written, previous data are overwritten (the sixth Configuration register will roll over to the first addressed Configuration register, the sixth Polarity Inversion register will roll over to the first addressed Polarity Inversion register and the sixth Mask Interrupt register will roll over to the first addressed Mask Interrupt register). Fig 13. Write to the I/O Configuration, Polarity Inversion or Mask Interrupt registers slave address command register repeated START condition slave address At this moment master-transmitter becomes master-receiver, and slave-receiver becomes slave-transmitter. (cont.) SDA S 0 1 0 0 A2 A1 A0 0 A 1 0 D5 D4 D3 D2 D1 D0 A Sr 0 1 0 0 A2 A1 A0 1 A START condition R/W acknowledge from slave AI = 1 acknowledge from slave 40-bit I2C-bus I/O port with RESET, OE and INT R/W acknowledge from slave D[5:0] = 00 0000 for Input Port register bank 0 D[5:0] = 00 1000 for Output Port register bank 0 D[5:0] = 01 0000 for Polarity Inversion register bank 0 D[5:0] = 01 1000 for Configuration register bank 0 D[5:0] = 10 0000 for Mask Interrupt register bank 0 acknowledge from master data from register A DATA last byte AP STOP condition no acknowledge from master data from register DATA first byte register determined by D[5:0] acknowledge from master data from register A DATA second byte PCA9505/06 002aab499 If AI = 0, the same register is read during the whole sequence. If AI = 1, the register value is incremented after each read. When the last register bank is read, it rolls over to the first byte of the category (see category definition in Section 7.2 “Command register”). The INT signal is released only when the last register containing an input that changed has been read. For example, when IO2_4 and IO4_7 change at the same time and an Input Port register’s read sequence is initiated, starting with IP0, INT is released after IP4 is read (and not after IP2 is read). 17 of 31 Fig 14. Read from Input Port, Output Port, I/O Configuration, Polarity Inversion or Mask Interrupt registers NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 9. Application design-in information 5V 1.6 kΩ 1.6 kΩ 1.1 kΩ (optional) 2 kΩ 1.1 kΩ (optional) VDD VDD MASTER CONTROLLER SCL SDA RESET INT OE GND VDD SUB-SYSTEM 1 (e.g., temp sensor) INT IO0_0 IO0_1 IO0_2 IO0_3 IO0_4 IO0_5 B IO1_0 IO3_7 A2 A1 A0 VSS IO4_0 IO4_7 VDD SUB-SYSTEM 3 (e.g., alarm system) ALARM ENABLE SUB-SYSTEM 2 (e.g., counter) RESET A controlled switch (e.g., CBT device) PCA9505/06 SCL SDA RESET INT OE ALPHA NUMERIC KEYPAD 24 LED MATRIX 002aab500 Device address configured as 0100 000X for this example. IO0_0, IO0_2, IO0_3, IO1_0 to IO3_7 are configured as outputs. IO0_1, IO0_4, IO4_0 to IO4_7 configured as inputs. Fig 15. Typical application PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 18 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 10. Limiting values Table 9. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol VDD VI II VI/O(n) VI/O(IO0n) IO(I/On) IDD ISS Ptot Tstg Tamb Tj Parameter supply voltage input voltage input current input/output voltage on any other pin input/output voltage on pin IO0_n output current on an I/O pin supply current ground supply current total power dissipation storage temperature ambient temperature junction temperature operating operating storage Conditions Min −0.5 VSS − 0.5 VSS − 0.5 VSS − 0.5 −20 −65 −40 Max +6 5.5 ±20 5.5 5.5 +50 500 1100 500 +150 +85 125 150 Unit V V mA V V mA mA mA mW °C °C °C °C 11. Static characteristics Table 10. Static characteristics VDD = 2.3 V to 5.5 V; VSS = 0 V; Tamb = −40 °C to +85 °C; unless otherwise specified. Symbol Supply VDD IDD supply voltage supply current PCA9506 only; operating mode; no load; fSCL = 400 kHz VDD = 2.3 V VDD = 3.3 V VDD = 5.5 V PCA9505 only; operating mode; no load; fSCL = 400 kHz VDD = 2.3 V VDD = 3.3 V VDD = 5.5 V IstbH HIGH-level standby current no load; fSCL = 0 kHz; I/O = inputs; VI = VDD VDD = 2.3 V VDD = 3.3 V VDD = 5.5 V IstbL VPOR PCA9505_9506_3 Parameter Conditions Min 2.3 Typ - Max 5.5 Unit V - 56 98 225 95 150 300 µA µA µA - 1 1.5 2.7 1.5 2 3.5 mA mA mA - 0.15 0.25 0.75 2 1.70 11 12 15.5 5 2.0 µA µA µA µA V LOW-level standby current power-on reset voltage[1] PCA9505 only no load; VI = VDD or VSS © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 19 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT Table 10. Static characteristics …continued VDD = 2.3 V to 5.5 V; VSS = 0 V; Tamb = −40 °C to +85 °C; unless otherwise specified. Symbol VIL VIH IOL IL Ci I/Os VIL VIH IOL LOW-level input voltage HIGH-level input voltage LOW-level output current VOL = 0.5 V VDD = 2.3 V VDD = 3.0 V VDD = 4.5 V IOL(tot) VOH total LOW-level output current HIGH-level output voltage VOL = 0.5 V; VDD = 4.5 V IOH = −10 mA VDD = 2.3 V VDD = 3.0 V VDD = 4.5 V ILIH ILIL HIGH-level input leakage current LOW-level input leakage current VDD = 3.6 V; VI = VDD VDD = 5.5 V; VI = VSS PCA9506 only PCA9505 only Ci Co IOL IOH Co VIL VIH ILI Ci VIL VIH ILI Ci [1] Parameter LOW-level input voltage HIGH-level input voltage LOW-level output current leakage current input capacitance Conditions Min −0.5 0.7VDD Typ 5 6 6 3.0 3.0 3.5 Max +0.3VDD 5.5 +1 10 +0.8 5.5 0.6 +1 +1 +1 7 7 +1 5 +0.8 5.5 +1 5 +0.3VDD 5.5 +1 5 Unit V V mA µA pF V V mA mA mA A V V V µA µA µA pF pF mA µA pF V V µA pF V V µA pF Input SCL; input/output SDA VOL = 0.4 V VI = VDD = VSS VI = VSS 20 −1 −0.5 2 10 12 15 1.6 2.3 4.0 −1 −1 −100 - input capacitance output capacitance LOW-level output current HIGH-level output current output capacitance LOW-level input voltage HIGH-level input voltage input leakage current input capacitance LOW-level input voltage HIGH-level input voltage input leakage current input capacitance VDD must be lowered to 0.2 V in order to reset part. Interrupt INT VOL = 0.4 V 6 −1 −0.5 2 −1 −0.5 0.7VDD −1 - Inputs RESET and OE Inputs A0, A1, A2 PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 20 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 12. Dynamic characteristics Table 11. Symbol Dynamic characteristics Parameter Conditions Standard mode I2C-bus Min fSCL tBUF tHD;STA tSU;STA tSU;STO tHD;DAT tVD;ACK tVD;DAT tSU;DAT tLOW tHIGH tf tr tSP SCL clock frequency bus free time between a STOP and START condition hold time (repeated) START condition set-up time for a repeated START condition set-up time for STOP condition data hold time data valid acknowledge time[2] data valid time[3] data set-up time LOW period of the SCL clock HIGH period of the SCL clock fall time of both SDA and SCL signals rise time of both SDA and SCL signals pulse width of spikes that must be suppressed by the input filter enable time disable time data output valid time data input set-up time data input hold time valid time on pin INT_N reset time on pin INT_N reset pulse width reset recovery time reset time output output [4][5] [1] Fast mode I2C-bus Min 0 1.3 0.6 0.6 0.6 0 0.1 0.1 100 1.3 0.6 20 + 0.1Cb [6] Unit Max 100 3.45 3.45 300 1000 50 Max 400 0.9 0.9 300 300 50 kHz µs µs µs µs ns µs µs ns µs µs ns ns ns 0 4.7 4.0 4.7 4.0 0 0.1 0.1 250 4.7 4.0 - [4][5] 20 + 0.1Cb[6] - [7] Port timing ten tdis tv(Q) tsu(D) th(D) tv(INT_N) trst(INT_N) Reset tw(rst) trec(rst) trst [1] [2] [3] [4] 100 0.5 4 0 100 80 40 250 4 4 - 100 0.5 4 0 100 80 40 250 4 4 - ns ns ns ns µs µs µs ns ns ns Interrupt timing Minimum SCL clock frequency is limited by the bus time-out feature, which resets the serial bus interface if either SDA or SCL is held LOW for a minimum of 25 ms. Disable bus time-out feature for DC operation. tVD;ACK = time for Acknowledgement signal from SCL LOW to SDA (out) LOW. tVD;DAT = minimum time for SDA data out to be valid following SCL LOW. A master device must internally provide a hold time of at least 300 ns for the SDA signal (refer to the VIL of the SCL signal) in order to bridge the undefined region SCL’s falling edge. © NXP B.V. 2007. All rights reserved. PCA9505_9506_3 Product data sheet Rev. 03 — 6 June 2007 21 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT [5] The maximum tf for the SDA and SCL bus lines is specified at 300 ns. The maximum fall time for the SDA output stage tf is specified at 250 ns. This allows series protection resistors to be connected between the SDA and the SCL pins and the SDA/SCL bus lines without exceeding the maximum specified tf. Cb = total capacitance of one bus line in pF. Input filters on the SDA and SCL inputs suppress noise spikes less than 50 ns. [6] [7] SDA tBUF tLOW SCL tr tf tHD;STA tSP tHD;STA P S tHD;DAT tHIGH tSU;DAT Sr tSU;STA tSU;STO P 002aaa986 Fig 16. Definition of timing on the I2C-bus protocol START condition (S) tSU;STA bit 7 MSB (A7) tLOW tHIGH bit 6 (A6) bit 0 (R/W) acknowledge (A) STOP condition (P) 1/f SCL SCL tBUF tr tf SDA tHD;STA tSU;DAT tHD;DAT tVD;DAT tVD;ACK tSU;STO 002aab175 Rise and fall times refer to VIL and VIH. Fig 17. I2C-bus timing diagram PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 22 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT START SCL ACK or read cycle SDA 30 % trst RESET 50 % trec(rst) tw(rst) trst IOx_y 50 % output off 002aac018 50 % 50 % Fig 18. Reset timing 13. Test information 2VDD open VSS VDD PULSE GENERATOR VI DUT RT VO RL 500 Ω CL 50 pF 500 Ω 002aac019 RL = load resistance CL = load capacitance includes jig and probe capacitance RT = termination resistance should be equal to the output impedance Zo of the pulse generators. Fig 19. Test circuitry for switching times PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 23 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 14. Package outline TSSOP56: plastic thin shrink small outline package; 56 leads; body width 6.1 mm SOT364-1 D E A X c y HE vMA Z 56 29 Q A2 A1 pin 1 index Lp L (A 3) A θ 1 e bp wM 28 detail X 0 2.5 scale 5 mm DIMENSIONS (mm are the original dimensions). UNIT mm A max. 1.2 A1 0.15 0.05 A2 1.05 0.85 A3 0.25 bp 0.28 0.17 c 0.2 0.1 D (1) 14.1 13.9 E (2) 6.2 6.0 e 0.5 HE 8.3 7.9 L 1 Lp 0.8 0.4 Q 0.50 0.35 v 0.25 w 0.08 y 0.1 Z 0.5 0.1 θ 8 o 0 o Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT364-1 REFERENCES IEC JEDEC MO-153 JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-19 Fig 20. Package outline SOT364-1 (TSSOP56) PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 24 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT HVQFN56: plastic thermal enhanced very thin quad flat package; no leads; 56 terminals; body 8 x 8 x 0.85 mm SOT684-1 D B A terminal 1 index area E A A1 c detail X e1 e 15 L 14 1/2 e C b 28 29 e vMCAB wMC y1 C y Eh 1/2 e e2 1 terminal 1 index area 56 Dh 0 DIMENSIONS (mm are the original dimensions) UNIT mm A(1) max. 1 A1 0.05 0.00 b 0.30 0.18 c 0.2 D(1) 8.1 7.9 Dh 4.45 4.15 E(1) 8.1 7.9 Eh 4.45 4.15 e 0.5 43 42 X 2.5 scale e1 6.5 e2 6.5 L 0.5 0.3 v 0.1 w 0.05 y 0.05 y1 0.1 5 mm Note 1. Plastic or metal protrusions of 0.075 mm maximum per side are not included. OUTLINE VERSION SOT684-1 REFERENCES IEC --JEDEC MO-220 JEITA --EUROPEAN PROJECTION ISSUE DATE 01-08-08 02-10-22 Fig 21. Package outline SOT684-1 (HVQFN56) PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 25 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 15. Handling information Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be completely safe you must take normal precautions appropriate to handling integrated circuits. 16. Soldering This text provides a very brief insight into a complex technology. A more in-depth account of soldering ICs can be found in Application Note AN10365 “Surface mount reflow soldering description”. 16.1 Introduction to soldering Soldering is one of the most common methods through which packages are attached to Printed Circuit Boards (PCBs), to form electrical circuits. The soldered joint provides both the mechanical and the electrical connection. There is no single soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and Surface Mount Devices (SMDs) are mixed on one printed wiring board; however, it is not suitable for fine pitch SMDs. Reflow soldering is ideal for the small pitches and high densities that come with increased miniaturization. 16.2 Wave and reflow soldering Wave soldering is a joining technology in which the joints are made by solder coming from a standing wave of liquid solder. The wave soldering process is suitable for the following: • Through-hole components • Leaded or leadless SMDs, which are glued to the surface of the printed circuit board Not all SMDs can be wave soldered. Packages with solder balls, and some leadless packages which have solder lands underneath the body, cannot be wave soldered. Also, leaded SMDs with leads having a pitch smaller than ~0.6 mm cannot be wave soldered, due to an increased probability of bridging. The reflow soldering process involves applying solder paste to a board, followed by component placement and exposure to a temperature profile. Leaded packages, packages with solder balls, and leadless packages are all reflow solderable. Key characteristics in both wave and reflow soldering are: • • • • • • Board specifications, including the board finish, solder masks and vias Package footprints, including solder thieves and orientation The moisture sensitivity level of the packages Package placement Inspection and repair Lead-free soldering versus PbSn soldering 16.3 Wave soldering Key characteristics in wave soldering are: PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 26 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT • Process issues, such as application of adhesive and flux, clinching of leads, board transport, the solder wave parameters, and the time during which components are exposed to the wave • Solder bath specifications, including temperature and impurities 16.4 Reflow soldering Key characteristics in reflow soldering are: • Lead-free versus SnPb soldering; note that a lead-free reflow process usually leads to higher minimum peak temperatures (see Figure 22) than a PbSn process, thus reducing the process window • Solder paste printing issues including smearing, release, and adjusting the process window for a mix of large and small components on one board • Reflow temperature profile; this profile includes preheat, reflow (in which the board is heated to the peak temperature) and cooling down. It is imperative that the peak temperature is high enough for the solder to make reliable solder joints (a solder paste characteristic). In addition, the peak temperature must be low enough that the packages and/or boards are not damaged. The peak temperature of the package depends on package thickness and volume and is classified in accordance with Table 12 and 13 Table 12. SnPb eutectic process (from J-STD-020C) Package reflow temperature (°C) Volume (mm3) < 350 < 2.5 ≥ 2.5 Table 13. 235 220 Lead-free process (from J-STD-020C) Package reflow temperature (°C) Volume (mm3) < 350 < 1.6 1.6 to 2.5 > 2.5 260 260 250 350 to 2000 260 250 245 > 2000 260 245 245 ≥ 350 220 220 Package thickness (mm) Package thickness (mm) Moisture sensitivity precautions, as indicated on the packing, must be respected at all times. Studies have shown that small packages reach higher temperatures during reflow soldering, see Figure 22. PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 27 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT temperature maximum peak temperature = MSL limit, damage level minimum peak temperature = minimum soldering temperature peak temperature time 001aac844 MSL: Moisture Sensitivity Level Fig 22. Temperature profiles for large and small components For further information on temperature profiles, refer to Application Note AN10365 “Surface mount reflow soldering description”. 17. Abbreviations Table 14. Acronym CDM DUT ESD HBM IC I2C-bus LED MM PLC POR PWM RAID Abbreviations Description Charged Device Model Device Under Test ElectroStatic Discharge Human Body Model Integrated Circuit Inter IC bus Light Emitting Diode Machine Model Programmable Logic Controller Power-On Reset Pulse Width Modulation Redundant Array of Independent Disks PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 28 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 18. Revision history Table 15. Revision history Release date 20070606 Data sheet status Product data sheet Change notice Supersedes PCA9506_2 Document ID PCA9505_9506_3 Modifications: • • • • The format of this data sheet has been redesigned to comply with the new identity guidelines of NXP Semiconductors. Legal texts have been adapted to the new company name where appropriate. Added device PCA9505 Section 1 “General description”: – 1st paragraph: added last 2 sentences – 6th paragraph re-written • Section 2 “Features”: – added (new) 4th bullet item – moved (old) 1st sub-bullet below “Inputs:” to 4th sub-bullet below “Outputs:” – last bullet item re-written to indicate which package offered for each type number • • • Table 1 “Ordering information”: added Type number PCA9505DGG Figure 2 “Simplified schematic of IO0_0 to IO4_7”: added pull-up resistor for PCA9505 Table 10 “Static characteristics”, sub-section “Supply”: – symbol IDD: added separate specifications for PCA9505 – changed symbol from “Istb, standby current” to “IstbH, HIGH-level standby current” – added symbol “IstbL, LOW-level standby current” (applies to PCA9505 only) • PCA9506_2 PCA9506_1 (9397 750 14939) Table 10 “Static characteristics”, sub-section “I/Os”: – symbol ILIL: added separate specifications for PCA9505 Product data sheet Product data sheet PCA9506_1 - 20060509 20060214 PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 29 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 19. Legal information 19.1 Data sheet status Document status[1][2] Objective [short] data sheet Preliminary [short] data sheet Product [short] data sheet [1] [2] [3] Product status[3] Development Qualification Production Definition This document contains data from the objective specification for product development. This document contains data from the preliminary specification. This document contains the product specification. Please consult the most recently issued document before initiating or completing a design. The term ‘short data sheet’ is explained in section “Definitions”. The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com. 19.2 Definitions Draft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet — A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. result in personal injury, death or severe property or environmental damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk. Applications — Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Limiting values — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of sale — NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by NXP Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. No offer to sell or license — Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. 19.3 Disclaimers General — Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Right to make changes — NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use — NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of a NXP Semiconductors product can reasonably be expected to 19.4 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. I2C-bus — logo is a trademark of NXP B.V. 20. Contact information For additional information, please visit: http://www.nxp.com For sales office addresses, send an email to: salesaddresses@nxp.com PCA9505_9506_3 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 03 — 6 June 2007 30 of 31 NXP Semiconductors PCA9505/06 40-bit I2C-bus I/O port with RESET, OE and INT 21. Contents 1 2 3 4 5 6 6.1 6.2 7 7.1 7.2 7.3 7.3.1 7.3.2 7.3.3 7.3.4 7.3.5 7.4 7.5 7.6 7.7 7.8 7.9 8 8.1 8.1.1 8.2 8.3 8.4 9 10 11 12 13 14 15 16 16.1 16.2 16.3 16.4 17 18 19 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pinning information . . . . . . . . . . . . . . . . . . . . . . 5 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 6 Functional description . . . . . . . . . . . . . . . . . . . 7 Device address . . . . . . . . . . . . . . . . . . . . . . . . . 7 Command register . . . . . . . . . . . . . . . . . . . . . . 7 Register definitions . . . . . . . . . . . . . . . . . . . . . . 9 IP0 to IP4 - Input Port registers . . . . . . . . . . . 10 OP0 to OP4 - Output Port registers . . . . . . . . 11 PI0 to PI4 - Polarity Inversion registers. . . . . . 11 IOC0 to IOC4 - I/O Configuration registers. . . 12 MSK0 to MSK4 - Mask interrupt registers . . . 12 Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . 12 RESET input . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Interrupt output (INT) . . . . . . . . . . . . . . . . . . . 13 Output enable input (OE) . . . . . . . . . . . . . . . . 13 Live insertion . . . . . . . . . . . . . . . . . . . . . . . . . 13 Standby. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Characteristics of the I2C-bus. . . . . . . . . . . . . 14 Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 START and STOP conditions . . . . . . . . . . . . . 14 System configuration . . . . . . . . . . . . . . . . . . . 14 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 15 Bus transactions . . . . . . . . . . . . . . . . . . . . . . . 15 Application design-in information . . . . . . . . . 18 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 19 Static characteristics. . . . . . . . . . . . . . . . . . . . 19 Dynamic characteristics . . . . . . . . . . . . . . . . . 21 Test information . . . . . . . . . . . . . . . . . . . . . . . . 23 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 24 Handling information. . . . . . . . . . . . . . . . . . . . 26 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Introduction to soldering . . . . . . . . . . . . . . . . . 26 Wave and reflow soldering . . . . . . . . . . . . . . . 26 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 26 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 27 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 29 Legal information. . . . . . . . . . . . . . . . . . . . . . . 30 19.1 19.2 19.3 19.4 20 21 Data sheet status . . . . . . . . . . . . . . . . . . . . . . Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . Contact information . . . . . . . . . . . . . . . . . . . . Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 30 30 30 30 31 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2007. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 6 June 2007 Document identifier: PCA9505_9506_3