XL9535

XL9535, XL9555 Product datasheet XL9535, XL9555 16-bit I2C-bus and SMBus I/O port Expander With Interrupt Output and Configuration Registers Rev. 2.2 — 2018 1. DESCRIPTION This device (XL9535/XL9555) is a 24-pin CMOS IC that provides 16-bit of General Purpose parallel Input/Output (GPIO) expansion for most micro-controller families via the I 2C-bus/SMBus interface [serial clock line (SCL), serial data line (SDA)]. These device is designed for 2.3-V to 5.5-V VCC operation. The improvements include higher drive capability, 5 V I/O tolerance, lower supply current, individual I/O configuration, and smaller packaging. I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc. These device consists of two 8-bit Configuration (Input or Output selection); Input Port, Output Port and Polarity Inversion (active-HIGH or active-LOW operation) registers. At power on, the I/Os are configured as inputs. The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each Input or Output is kept in the corresponding Input or Output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master. These device open-drain interrupt (INT) output is activated when any input state differs from its corresponding Input Port register state and is used to indicate to the system master that an input state has changed. The system master can reset these device in the event of a timeout or other improper operation by utilizing the power-on reset feature. The power-on reset sets the registers to their default values and initializes the I2C/SMBus state machine. Three hardware address pins (A0, A1 and A2) vary the fixed I2C-bus address and allow up to eight devices to share the same I2C-bus/SMBus. 2. FEATURES l l l l l l l l I2C-bus to 16-bit GPIO expander Operating power supply voltage range of 2.3-V to 5.5-V Low standby current consumption 5 V tolerant I/O ports 400 kHz fast-mode I2C-bus clock frequency Noise filter on SCL/SDA inputs Internal power-on reset No glitch on power-up www.xinluda.com l l l l l l 1 / 25 Polarity Inversion register Address by 3 hardware address pins for use of up to 8 devices Open-drain active LOW interrupt output 16 I/O pins which default to 16 inputs Latch-up testing exceeds 100 mA per JESD 78 ESD protection exceeds JESD 22 2000 V HBM, 200 V MM and 1000 V CDM Rev 2.2 XL9535, XL9555 Product datasheet 3. ORDERING INFORMATION Table 1. Ordering Information Part Device Package Body size Temperature Number Marking Type (mm) (°C) XL9535D XL9535D SOP24(300mil) 15.4 × 7.50 -40 to +85 XL9535SS XL9535SS SSOP24(209mil) 8.20 × 5.30 XL9535 XL9535 TSSOP24 XL9535QF24 XL9535QF24 XL9555D Transport Package Media Quantity MSL3 T&R 13" 1000 -40 to +85 MSL3 T&R 13" 2500 7.80 × 4.40 -40 to +85 MSL3 T&R 13" 4000 QFN24-4×4 4.00 × 4.00 -40 to +85 MSL3 T&R 13" 5000 XL9555D SOP24(300mil) 15.4 × 7.50 -40 to +85 MSL3 T&R 13" 1000 XL9555SS XL9555SS SSOP24(209mil) 8.20 × 5.30 -40 to +85 MSL3 T&R 13" 2500 XL9555 XL9555 TSSOP24 7.80 × 4.40 -40 to +85 MSL3 T&R 13" 4000 XL9555QF24 XL9555QF24 QFN24-4×4 4.00 × 4.00 -40 to +85 MSL3 T&R 13" 5000 MSL 4. PIN CONFIGURATIONS AND FUNCTIONS SCL 21 A0 P16 15 P15 2 P02 3 18 P15 P03 4 8 17 P14 P04 5 14 P14 9 16 P13 P05 6 13 P13 P06 10 15 P12 P07 11 14 P11 GND 12 13 P10 Figure 1. Pin configuration for SOP24/SSOP24/TSSOP24 (TOP VIEW) www.xinluda.com 10 11 12 P11 P12 ePAD EXPOSED THERMAL PAD P10 P05 P17 16 P01 P16 9 P04 17 P17 8 7 A0 19 P07 P03 18 20 XL9535 or XL9555 GND 6 XL9535/XL9555 7 5 1 P06 P01 P02 P00 SDA 22 4 SCL 3 19 A2 P00 Pin 1 index 20 SDA VCC 23 21 2 INT A1 A1 VCC 22 24 A2 1 24 INT 23 Fred.W.XLD.XINLUDA Figure 2. Pin configuration for QFN24 (TOP VIEW) 2 / 25 Rev 2.2 XL9535, XL9555 Product datasheet Table 2. Pin Functions PIN NUMBER PIN DESCRIPTION NAME SOP/SSOP/TSSOP QFN INT 1 22 Interrupt output (open-drain). Connect to V CC through a pull-up resistor. A1 2 23 Address input 1. Connect directly to V CC or ground. A2 3 24 Address input 2. Connect directly to V CC or ground. P00 4 1 P01 5 2 P02 6 3 P03 7 4 Port 0 input/output. Push-pull design structure. At power on, P00-P07 are P04 8 5 configured as an input. [1] P05 9 6 P06 10 7 P07 11 8 GND 12 9 [2] P10 13 10 P11 14 11 P12 15 12 P13 16 13 Port 1 input/output. Push-pull design structure. At power on, P10-P17 are P14 17 14 configured as an input. [1] P15 18 15 P16 19 16 P17 20 17 A0 21 18 Address input 0. Connect directly to V CC or ground. SCL 22 19 Serial clock line. Connect to VCC through a pull-up resistor. SDA 23 20 Serial data line. Connect to V CC through a pull-up resistor. VCC 24 21 Supply voltage. ePAD - Y [2] Supply ground. Exposed thermal pad. Connect directly to ground. [1] XL9535 and XL9555 I/Os are totem pole. For XL9555 inside, note that there is a high value resistor tied to VCC at each pin. [2] QFN24 package die supply ground is connected to both the GND pin and the exposed thermal pad(ePAD). The GND pin must be connected to supply ground for proper device operation. For enhanced thermal, electrical, and board-level performance, the ePAD 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 PCB in the thermal pad region. www.xinluda.com 3 / 25 Rev 2.2 XL9535, XL9555 Product datasheet 5. FUNCTIONAL BLOCK DIAGRAM Fred.W.XLD.XINLUDA XL9535 or XL9555 VCC 1 INT LP Filter 21 2 3 A0 A1 A2 8 Bits Write Pulse 22 SCL Input Filter 23 SDA I/O Port (0) 11-4 P07-P00 Read Pulse I2C-BUS/SMBus Control Logic 24 VCC 8 Bits Power-On Reset Write Pulse 12 GND REMARK: Interrupt Logic I/O Port (1) 20-13 P17-P10 Read Pulse (1) All I/Os are set to inputs at reset. (2) Pin numbers shown are for the TSSOP24 package. Figure 3. Block Diagram 6. SPECIFICATIONS 6.1. Absolute Maximum Ratings [3] SYMBOL PARAMETER TEST CONDITIONS MIN MAX UNIT VCC Supply voltage range -0.5 +6 V VIN Input pin voltage range [4] -0.5 +6 V VO Output pin voltage range [4] -0.5 +6 V IIK Input clamp current VIN