CAT9555

CAT9555 16-bit I2C and SMBus I/O Port with Interrupt FEATURES s 400kHz I2C bus compatible* s 2.3V to 5.5V operation s Low stand-by current s 5V tolerant I/Os s 16 I/O pins that default to inputs at power-up s High drive capability s Individual I/O configuration s Polarity inversion register s Active low interrupt output s Internal power-on reset s No glitch on power-up s Noise filter on SDA/SCL inputs s Cascadable up to 8 devices s Industrial temperature range s RoHS-compliant 24-lead SOIC and TSSOP, and DESCRIPTION The CAT9555 is a CMOS device that provides 16-bit parallel input/output port expansion for I2C and SMBus compatible applications. These I/O expanders provide a simple solution in applications where additional I/Os are needed: sensors, power switches, LEDs, pushbuttons, and fans. The CAT9555 consists of two 8-bit Configuration ports (input or output), Input, Output and Polarity inversion registers, and an I2C/SMBus-compatible serial interface. Any of the sixteen I/Os can be configured as an input or output by writing to the configuration register. The system master can invert the CAT9555 input data by writing to the active-high polarity inversion register. The CAT9555 features an active low interrupt output which indicates to the system master that an input state has changed. The three address input pins provide the device's extended addressing capability and allow up to eight devices to share the same bus. The fixed part of the I2C slave address is the same as the CAT9554, allowing up to eight of these devices in any combination to be connected on the same bus. 24-pad TQFN (4 x 4 mm) packages APPLICATIONS s White goods (dishwashers, washing machines) s Handheld devices (cell phones, PDAs, digital cameras) s Data Communications (routers, hubs and servers) For Ordering Information details, see page 16. BLOCK DIAGRAM A0 A1 A2 8-BIT INPUT/ OUTPUT PORTS I/O1.0 I/O1.1 I/O1.2 I/O1.3 I/O1.4 I/O1.5 I/O1.6 I/O1.7 I2C/SMBUS CONTROL I/O0.0 I/O0.1 SCL SDA INPUT FILTER 8-BIT INPUT/ OUTPUT PORTS I/O0.2 I/O0.3 I/O0.4 I/O0.5 I/O0.6 I/O0.7 POWER-ON RESET VINT LP FILTER WRITE pulse READ pulse WRITE pulse READ pulse VCC VCC ~ INT NOTE: ALL I/Os ARE SET TO INPUTS AT RESET * Catalyst Semiconductor is licensed by Philips Corporation to carry the I2C Bus Protocol. © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice 1 Doc. No. 8551, Rev. E CAT9555 PIN CONFIGURATION SOIC (W) / TSSOP (Y) 24 A2 INT A1 A2 I/O0.0 I/O0.1 I/O0.2 I/O0.3 I/O0.4 I/O0.5 I/O0.6 I/O0.7 VSS 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 19 17 16 15 14 13 VCC SDA SCL A0 I/O1.7 I/O1.6 I/O1.5 I/O1.4 I/O1.3 I/O1.2 I/O1.1 I/O1.0 TQFN (HV6) 21 VCC 20 SDA 19 SCL 22 INT 23 A1 I/O0.0 1 I/O0.1 2 I/O0.2 3 I/O0.3 4 I/O0.4 5 I/O0.5 6 I/O1.0 10 I/O1.2 12 I/O1.1 11 I/O0.6 7 I/O0.7 8 VSS 9 18 A0 17 I/O1.7 16 I/O1.6 15 I/O1.5 14 I/O1.4 13 I/O1.3 4 x 4 mm Top View PIN DESCRIPTION SOIC / TSSOP 1 2 3 4-11 12 13-20 21 22 23 24 TQFN 22 23 24 1-8 9 10-17 18 19 20 21 PIN NAME INT A1 A2 I/O0.0 - I/O0.7 VSS I/O1.0 - I/O1.7 A0 SCL SDA VCC FUNCTION Interrupt Output (open drain) Address Input 1 Address Input 2 I/O Port 0.0 to I/O Port 0.7 Ground I/O Port 1.0 to I/O Port 1.7 Address Input 0 Serial Clock Serial Data Power Supply Doc. No. 8551, Rev. E 2 © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT9555 ABSOLUTE MAXIMUM RATINGS(1) VCC with Respect to Ground ............... –0.5V to +6.5V Voltage on Any Pin with Respect to Ground ........................ –0.5V to +5.5V DC Current on I/O0 to I/O7 ........................................... +50 mA DC Input Current ............................................. +20 mA VCC Supply Current .......................................... 160mA VSS Supply Current .......................................... 200mA Package Power Dissipation Capability (TA = 25°C) ................................... 1.0W Junction Temperature ..................................... +150°C Storage Temperature ........................ -65°C to +150°C RELIABILITY CHARACTERISTICS Symbol VZAP(2) ILTH(2) Parameter ESD Susceptibility Latch-up Reference Test Method JEDEC Standard JESD22 JEDEC JESD78A Min 2000 100 Units Volts mA Notes: (1) Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability. (2) This parameter is tested initially and after a design or process change that affects the parameter. © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice 3 Doc. No. 8551, Rev. E CAT9555 D.C. OPERATING CHARACTERISTICS VCC = 2.3 to 5.5 V; VSS = 0V; TA = -40°C to +85°C, unless otherwise specified Symbol Supplies VCC ICC Istbl Istbh VPOR Supply voltage Supply current Standby current Standby current Power-on reset voltage Operating mode; VCC = 5.5 V; no load; fSCL = 100 kHz Standby mode; VCC = 5.5 V; no load; VI = VSS; fSCL = 0 kHz; I/O = inputs Standby mode; VCC = 5.5 V; no load; VI = VCC; fSCL = 0 kHz; I/O = inputs No load; VI = VCC or VSS 2.3 — — — — — 135 1.1 0.75 1.5 5.5 200 1.5 1 1.65 V µA mA µA V Parameter Conditions Min Typ Max Unit SCL, SDA, INT VIL (1) VIH (1) IOL IL CI (2) CO (2) A0, A1, A2 VIL(1) VIH(1) ILI I/Os VIL VIH IOL Low level input voltage High level input voltage Low level output current VOL = 0.5 V; VCC = 2..3 V to 5.5 V (3) VOL = 0.7 V; VCC = 2..3 V to 5.5 V (3) IOH = – 8 mA; VCC = 2.3 V; (4) IOH = – 10 mA; VCC = 2.3 V; (4) IOH = – 8 mA; VCC = 3.0 V; (4) VOH High level output voltage IOH = – 10 mA; VCC = 3.0 V; (4) IOH = – 8 mA; VCC = 4.75 V; (4) IOH = – 10 mA; VCC = 4.75 V; (4) IIH IIL CI (2) CO (2) Input leakage current Input leakage current Input capacitance Output capacitance VCC = 3.6 V; VI = VCC VCC = 5.5 V; VI = VSS 2.5 4.1 4.0 — — — — — — — — — — — — — — 1 -100 5 8 V V V µA µA pF pF -0.5 0.7 VCC 8 10 1.8 1.7 2.6 — — 8 to 20 10 to 24 — — — 0.3 VCC 5.5 — — — — — V V mA mA V V V Low level input voltage High level input voltage Input leakage current -0.5 0.7 VCC -1 — — — 0.3 VCC 5.5 1 V V µA Low level input voltage High level input voltage Low level output current Leakage current Input capacitance Output capacitance VOL = 0.4V VI = VCC = VSS VI = VSS VO = VSS -0.5 0.7 VCC 3 –1 — — — — — — — — 0.3 VCC 5.5 — +1 6 8 V V mA µA pF pF Notes: 1. VIL min and VIH max are reference values only and are not tested. 2. This parameter is characterized initially and after a design or process change that affects the parameter. Not 100% tested. 3. Each I/Os must be externally limited to a maximum of 25 mA and each octal (I/O0.0 to I/O0.7 and I/O1.0 to I/O1.7) must be limited to a maximum current of 100 mA for a device total of 200 mA. 4. The total current sourced by all I/Os must be limited to 160 mA. Doc. No. 8551, Rev. E 4 © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT9555 A.C. CHARACTERISTICS VCC = 2.3V to 5.5V, TA = -40°C to +85°C, unless otherwise specified (Note 1). Symbol fSCL tSP tLOW tHIGH tR tF (2) Parameter Clock Frequency Input Filter Spike Suppression (SDA, SCL) Clock Low Period Clock High Period SDA and SCL Rise Time SDA and SCL Fall Time Start Condition Hold Time Start Condition Setup Time (for a Repeated Start) Data Input Hold Time Data In Setup Time Stop Condition Setup Time SCL Low to Data Out Valid Data Out Hold Time Time the Bus must be Free Before a New Transmission Can Start Min Max 400 50 Units kHz ns µs µs 1.3 0.6 20 20 0.6 0.6 0 100 0.6 900 50 1.3 300 300 ns ns µs µs ns ns µs ns ns µs (2) tHD:STA tSU:STA tHD:DAT tSU:DAT tSU:STO tAA tDH tBUF (2) Port Timing tPV tPS tPH Output Data Valid Input Data Setup Time Input Data Hold Time 100 1 200 ns ns µs Interrupt Timing tIV tIR Interrupt Valid Interrupt Reset 4 4 µs µs Notes: 1. Test conditions according to "AC Test Conditions" table. 2. This parameter is characterized initially and after a design or process change that affects the parameter. Not 100% tested. © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice 5 Doc. No. 8551, Rev. E CAT9555 AC TEST CONDITIONS Input Rise and Fall time CMOS Input Voltages CMOS Input Reference Voltages Output Reference Voltages Output Load: SDA, INT Output Load: I/Os < = 10ns 0.2VCC to 0.8VCC 0.3VCC to 0.7VCC 0.5VCC Current Souce IOL = 3mA; CL = 100pF Current Source: IOL/IOH = 10mA; CL = 50pF tF tLOW SCL tSU:STA tHD:STA tHIGH tLOW tR tHD:DAT tSU:DAT tSU:STO SDA IN tAA SDA OUT tDH tBUF Figure 1. 2-Wire Serial Interface Timing Doc. No. 8551, Rev. E 6 © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT9555 PIN DESCRIPTION SCL: Serial Clock The serial clock input clocks all data transferred into or out of the device. The SCL line requires a pull-up resistor if it is driven by an open drain output. SDA: Serial Data/Address The bidirectional serial data/address pin is used to transfer all data into and out of the device. The SDA pin is an open drain output and can be wire-ORed with other open drain or open collector outputs. A pull-up resistor must be connected from SDA line to VCC. The value of the pull-up resistor, Rp, can be calculated based on minimum and maximum values from Figure 2 and Figure 3 (see Note). A0, A1, A2: Device Address Inputs These inputs are used for extended addressing capability. The A0, A1, A2 pins should be hardwired to VCC or VSS. When hardwired, up to eight CAT9555s may be addressed on a single bus system. The levels on these inputs are compared with corresponding bits, A2, A1, A0, from the slave address byte. I/O 0.0 to I/O 0.7, I/O 1.0 to I/O 1.7: Input / Output Ports Any of these pins may be configured as input or output. The simplified schematic of I/Os is shown in Figure 4. When an I/O is configured as an input, the Q1 and Q2 output transistors are off creating a high impedance input with a weak pull-up resistor (typical 100 kohm). If the I/O pin is configured as an output, the push-pull output stage is enabled. Care should be taken if an external voltage is applied to an I/O pin configured as an output due to the low impedance paths that exist between the pin and either VCC or VSS. 2.5 2 1.5 1 0.5 0 2 2.4 2.8 3.2 3.6 4 4.4 4.8 5.2 5.6 8.00 RP max (Kohm) RP min (Kohm) 7.00 6.00 5.00 4.00 3.00 2.00 1.00 0.00 50 100 150 200 250 300 350 400 VCC (V) CBUS (pF) Figure 2. Minimum Rp as a Function of Supply Voltage (IOL = 3mA @ VOL max) Figure 3. Maximum Rp Value versus Bus Capacitance (Fast Mode I2C Bus / tr max = 300ns) Note: According to the Fast Mode I2C bus specification, for bus capacitance up to 200pF, the pull up device can be a resistor. For bus loads between 200pF and 400pF, the pull-up device can be a current source (Imax = 3mA) or a switched resistor circuit. © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice 7 Doc. No. 8551, Rev. E CAT9555 INT: Interrupt Output The open-drain interrupt output is activated when one of the port pins configured as an input changes state (differs from the corresponding input port register bit state). The interrupt is deactivated when the input returns to its previous state or the input port register is read. Since there are two 8-bit ports that are read independently, the interrupt caused by Port 0 will not be cleared by a read of Port 1, or vice versa. Changing an I/O from an output to and input may cause a false interrupt if the state of the pin does not match the contents of the input port register. Data from Shift Register Data from Shift Register Configuration Register D FF Q Output Port Register Data VCC Q1 Write Configuration Pulse CK Q D FF Q I/O Pin Write Pulse CK Q Q2 Input Port Register Output Port Register VSS Input Port Register Data D Q LATCH Read Pulse CK Q To INT Data from Shift Register Write Polarity Register D FF CK Q Polarity Register Data Q Polarity Inversion Register Figure 4. Simplified Schematic of I/Os Doc. No. 8551, Rev. E 8 © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT9555 FUNCTIONAL DESCRIPTION The CAT9555 general purpose input/output (GPIO) peripheral provides up to sixteen I/O ports, controlled through an I2C compatible serial interface The CAT9555 supports the I2C Bus data transmission protocol. This Inter-Integrated Circuit Bus protocol defines any device that sends data to the bus to be a transmitter and any device receiving data to be a receiver. The transfer is controlled by the Master device which generates the serial clock and all START and STOP conditions for bus access. The CAT9555 operates as a Slave device. Both the Master device and Slave device can operate as either transmitter or receiver, but the Master device controls which mode is activated. I2C Bus Protocol The features of the I2C bus protocol are defined as follows: (1) Data transfer may be initiated only when the bus is not busy. (2) During a data transfer, the data line must remain stable whenever the clock line is high. Any changes in the data line while the clock line is high will be interpreted as a START or STOP condition (Figure 5). START and STOP Conditions The START Condition precedes all commands to the device, and is defined as a HIGH to LOW transition of SDA when SCL is HIGH. The CAT9555 monitors the SDA and SCL lines and will not respond until this condition is met. A LOW to HIGH transition of SDA when SCL is HIGH determines the STOP condition. All operations must end with a STOP condition. Device Addressing After the bus Master sends a START condition, a slave address byte is required to enable the CAT9555 for a read or write operation. The four most significant bits of the slave address are fixed as binary 0100 (Figure 6). The CAT9555 uses the next three bits as address bits. The address bits A2, A1 and A0 are used to select which device is accessed from maximum eight devices on the same bus. These bits must compare to their hardwired input pins. The 8th bit following the 7-bit slave address is the R/W bit that specifies whether a read or write operation is to be performed. When this bit is set to “1”, a read operation is initiated, and when set to “0”, a write operation is selected. Following the START condition and the slave address byte, the CAT9555 monitors the bus and responds with an acknowledge (on the SDA line) when its address matches the transmitted slave address. The CAT9555 then performs a read or a write operation depending on the state of the R/W bit. SCL SDA START CONDITION STOP CONDITION Figure 5. Start/Stop Timing SLAVE ADDRESS 1 1 0 0 A2 A1 A0 R/W FIXED PROGRAMMABLE HARDWARE SELECTABLE Figure 6. CAT9555 Slave Address © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice 9 Doc. No. 8551, Rev. E CAT9555 Acknowledge After a successful data transfer, each receiving device is required to generate an acknowledge. The acknowledging device pulls down the SDA line during the ninth clock cycle, signaling that it received the 8 bits of data. The SDA line remains stable LOW during the HIGH period of the acknowledge related clock pulse (Figure 7). The CAT9555 responds with an acknowledge after receiving a START condition and its slave address. If the device has been selected along with a write operation, it responds with an acknowledge after receiving each data byte. When the CAT9555 begins a READ mode it transmits 8 bits of data, releases the SDA line, and monitors the line for an acknowledge. Once it receives this acknowledge, the CAT9555 will continue to transmit data. If no acknowledge is sent by the Master, the device terminates data transmission and waits for a STOP condition. The master must then issue a stop condition to return the CAT9555 to the standby power mode and place the device in a known state. Registers and Bus Transactions The CAT9555 internal registers and their address and function are shown in Table 1. Table 1. Register Command Byte Command (hex) 0h 1h 2h 3h 4h 5h 6h 7h Register default 0 N1.7 0 0 N1.6 0 0 N1.5 0 0 N1.4 0 0 N1.3 0 0 N1.2 0 0 N1.1 0 0 N1.0 0 The command byte is the first byte to follow the device address byte during a write/read bus transaction. The register command byte acts as a pointer to determine which register will be written or read. The input port register is a read only port. It reflects the incoming logic levels of the I/O pins, regardless of whether the pin is defined as an input or an output by the configuration register. Writes to the input port register are ignored. Table 2. Registers 0 and 1 – Input Port Registers bit default bit default IO.7 X I1.7 X IO.6 X I1.6 X IO.5 X I1.5 X IO.4 X I1.4 X IO.3 X I1.3 X IO.2 X I1.2 X IO.1 X I1.1 X IO.0 X I1.0 X The default value 'X' is determined by the externally applied logic lavel Table 3. Registers 2 and 3 – Output Port Registers bit default bit default O0.7 1 O1.7 1 O0.6 1 O1.6 1 O0.5 1 O1.5 1 O0.4 1 O1.4 1 O0.3 1 O1.3 1 O0.2 1 O1.2 1 O0.1 1 O1.1 1 O0.0 1 O1.0 1 Table 4. Registers 4 and 5 – Polarity Inversion Registers bit N0.7 N0.6 N0.5 N0.4 N0.3 N0.2 N0.1 N0.0 Input Port 0 bit Input Port 1 default Output Port 0 Output Port 1 Polarity Inversion Port 0 Polarity Inversion Port 1 Configuration Port 0 Configuration Port 1 Table 5. Registers 6 and 7 – Configuration Registers bit default bit default C0.7 1 C1.7 1 C0.6 1 C1.6 1 C0.5 1 C1.5 1 C0.4 1 C1.4 1 C0.3 1 C1.3 1 C0.2 1 C1.2 1 C0.1 1 C1.1 1 C0.0 1 C1.0 1 BUS RELEASE DELAY (TRANSMITTER) SCL FROM MASTER 1 8 9 BUS RELEASE DELAY (RECEIVER) DATA OUTPUT FROM TRANSMITTER DATA OUTPUT FROM RECEIVER START ACK DELAY (≤ tAA) ACK SETUP (≥ tSU:DAT) Figure 7. Acknowledge Timing Doc. No. 8551, Rev. E 10 © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT9555 The output port register sets the outgoing logic levels of the I/O ports, defined as outputs by the configuration register. Bit values in this register have no effect on I/O pins defined as inputs. Reads from the output port register reflect the value that is in the flip-flop controlling the output, not the actual I/O pin value. The polarity inversion register allows the user to invert the polarity of the input port register data. If a bit in this register is set (“1”) the corresponding input port data is inverted. If a bit in the polarity inversion register is cleared (“0”), the original input port polarity is retained. The configuration register sets the directions of the ports. Set the bit in the configuration register to enable the corresponding port pin as an input with a high impedance output driver. If a bit in this register is cleared, the corresponding port pin is enabled as an output. At power-up, the I/Os are configured as inputs with a weak pull-up resistor to VCC. Writing to the Port Registers Data is transmitted to the CAT9555 registers using the write mode shown in Figure 8 and Figure 9. The CAT9555 registers are configured to operate at four register pairs: Input Ports, Output Ports, Polarity Inversion Ports and Configuration Ports. After sending data to one register, the next data byte will be sent to the other register in the pair. For example, if the first byte of data is sent to the Configuration Port 1 (register 7), the next byte will be stored in the Configuration Port 0 (register 6). Each 8-bit register may be updated independently of the other registers. Reading the Port Registers The CAT9555 registers are read according to the timing diagrams shown in Figure 10 and Figure 11. Data from the register, defined by the command byte, will be sent serially on the SDA line. Data is clocked into the register on the failing edge of the acknowledge clock pulse. After the first byte is read, additional data bytes may be read, but the second read will reflect the data from the other register in the pair. For example, if the first read is data from Input Port 0, the next read data will be from Input Port 1. The transfer is stopped when the master will not acknowledge the data byte received and issue the STOP condition. SCL 1 2 3 4 5 6 7 8 9 command byte data to port 0 1 0 A 0.7 DATA 0 0.0 A 1.7 acknowledge from slave data to port 1 DATA 1 1.0 A P stop condition slave address SDA S 0 1 0 0 A2 A1 A0 0 R/W A 0 0 0 0 0 0 start condition acknowledge from slave acknowledge from slave WRITE TO PORT DATA OUT FROM PORT 0 tpv DATA OUT FROM PORT 1 DATA VALID tpv Figure 8. Write to Output Port Registers SCL 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 slave address SDA S 0 1 0 0 A2 A1 A0 0 R/W A 0 0 command byte data to configuration 0 1 0 A MSB acknowledge from slave DATA 0 LSB A MSB data to configuration 1 DATA 1 LSB A P 0 0 0 A 1 start condition acknowledge from slave acknowledge from slave Figure 9. Write to Configuration Registers © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice 11 Doc. No. 8551, Rev. E CAT9555 Power-On Reset Operation When the power supply is applied to VCC pin, an internal power-on reset pulse holds the CAT9555 in a reset state until VCC reaches VPOR level. At this point, the reset condition is released and the internal state machine and the CAT9555 registers are initialized to their default state. slave address S 0 1 0 0 acknowledge from slave acknowledge from slave slave address 0 0 1 0 acknowledge from slave data from lower or upper byte of register acknowledge from master A2 A1 A0 0 A COMMAND BYTE A S A2 A1 A0 1 A MSB DATA LSB A R/W at this moment master-transmitter becomes master-receiver and slave-receiver becomes slave-transmitter R/W first byte data from upper or lower byte of register MSB DATA no acknowledge from master LSB NA P NOTE: Transfer can be stopped at any time by a STOP condition. last byte Figure 10. Read from Register SCL 1 2 3 4 5 6 7 8 9 I0.x I1.x A DATA 10 A I0.x DATA 03 A I1.x DATA 12 1 P SDA S 0 1 0 0 A2 A1 A0 1 R/W A DATA 00 ACKNOWLEDGE FROM SLAVE tph ACKNOWLEDGE FROM MASTER ACKNOWLEDGE FROM MASTER tps ACKNOWLEDGE FROM MASTER NON ACKNOWLEDGE FROM MASTER READ FROM PORT 0 DATA INTO PORT 0 DATA 00 DATA 01 tph DATA 02 DATA 03 tps READ FROM PORT 1 DATA INTO PORT 1 DATA 10 DATA 11 DATA 12 INT tIV tIR NOTE: Transfer of data can be stopped at any moment by a STOP condition. When this occurs, data present at the latest acknowledge phase is valid (output mode). It is assumed that the command byte has previously been set to 00 (read input port register). Figure 11. Read Input Port Register Doc. No. 8551, Rev. E 12 © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT9555 PACKAGE DIMENSIONS 24-LEAD 300MIL WIDE SOIC (W) E1 E h x 45 D C θ1 e b A1 L A SYMBOL A1 A b C D E E1 e h L θ1 MIN 0.10 2.35 0.33 0.23 15.20 10.00 7.40 0.25 0.40 0° NOM 2.49 0.41 0.27 15.40 10.32 7.50 1.27 BSC 0.73 MAX 0.30 2.65 0.51 0.32 15.60 10.65 7.60 0.75 1.27 8° 24-Lead_SOIC_(300mil).eps For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: 1. All dimensions are in millimeters. 2. Complies with JEDEC Standard MS-013 © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice 13 Doc. No. 8551, Rev. E CAT9555 24-LEAD TSSOP (Y) SEE DETAIL A E E1 C D A2 A b e A1 GAGE PLANE θ1 L 0.25 L1 DETAIL "A" SYMBOL A A1 A2 b c D E E1 e L L1 θ1 MIN 0.05 0.80 0.19 0.09 7.70 4.30 0.45 0.00 NOM MAX 1.20 0.15 1.05 0.30 0.20 7.90 4.50 0.75 8.00 1.00 7.80 6.40 BSC 4.40 0.65 BSC 0.60 1.00 REF For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: 1. All dimensions are in millimeters. 2. Complies with JEDEC Standard MO-153 Doc. No. 8551, Rev. E 14 © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT9555 24-PAD TQFN (4X4) (HV6) D2 PIN 1 INDEX AREA E E2 L b 3xe e D A A3 A1 SYMBOL A A1 A3 b D D2 E E2 e L MIN 0.70 0.00 0.20 3.95 2.40 3.95 2.40 0.30 NOM 0.75 0.02 0.20 REF 0.25 4.00 2.50 4.00 2.50 0.50 TYP 0.40 MAX 0.80 0.05 0.30 4.05 2.60 4.05 2.60 0.50 TQFN_24-Lead_4X4.eps For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: 1. All dimensions are in millimeters. 2. Complies with JEDEC Standard MO-220 © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice 15 Doc. No. 8551, Rev. E CAT9555 ORDERING INFORMATION Prefix CAT Optional Company ID Device # 9555 Suffix W I – T1 Product Number 9555 Temperature Range I = Industrial (-40°C to +85°C) Tape & Reel T: Tape & Reel 1: 1000/Reel SOIC Only 2: 2000/Reel Package W: SOIC Y: TSSOP HV6: TQFN Notes: (1) All packages are RoHS-compliant (Lead-free, Halogen-free). (2) The standard lead finish is Matte-Tin. (3) The device used in the above example is a CAT9555WI-T1 (SOIC, Industrial Temperature, Matte-Tin, Tape & Reel). (4) For additional package and temperature options, please contact your nearest Catalyst Semiconductor Sales office. Ordering Part Number CAT9555WI CAT9555WI-T1 CAT9555YI CAT9555YI-T2 CAT9555HV6I CAT9555HV6I-T2 Package SOIC SOIC TSSOP TSSOP TQFN TQFN Lead Finish Matte-Tin Matte-Tin Matte-Tin Matte-Tin Matte-Tin Matte-Tin Doc. No. 8551, Rev. E 16 © 2007 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice REVISION HISTORY Date 12/9/2004 1/7/2005 03/11/05 Rev. A B C Reason Advance Information - Initial Issue Advance Information - Minor changes Advance Information Edit Features Edit Ordering Information Initial Release Update Ordering Information: Tape and Reel for SOIC package 09/25/06 03/12/07 D E Copyrights, Trademarks and Patents Trademarks and registered trademarks of Catalyst Semiconductor include each of the following: DPP ™ AE2 ™ MiniPot™ Quad-Mode ™ Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products. CATALYST SEMICONDUCTOR MAKES NO WARRANTY, REPRESENTATION OR GUARANTEE, EXPRESS OR IMPLIED, REGARDING THE SUITABILITY OF ITS PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OF ITS PRODUCTS WILL NOT INFRINGE ITS INTELLECTUAL PROPERTY RIGHTS OR THE RIGHTS OF THIRD PARTIES WITH RESPECT TO ANY PARTICULAR USE OR APPLICATION AND SPECIFICALLY DISCLAIMS ANY AND ALL LIABILITY ARISING OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES. Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a situation where personal injury or death may occur. Catalyst Semiconductor reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets labeled "Advance Information" or "Preliminary" and other products described herein may not be in production or offered for sale. Catalyst Semiconductor advises customers to obtain the current version of the relevant product information before placing orders. Circuit diagrams illustrate typical semiconductor applications and may not be complete. Catalyst Semiconductor, Inc. Corporate Headquarters 2975 Stender Way Santa Clara, CA 95054 Phone: 408.542.1000 Fax: 408.542.1200 www.catsemi.com Publication #: Revison: Issue date: 8551 E 03/12/07