TCA9535RGER Datasheet PDF - TI

●Description

●The TCA9535 is a 24-pin device that provides 16 bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus or (SMBus) protocol. The device can operate with a power supply voltage ranging from 1.65 V to 5.5 V.

●The TCA9535 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 TCA9535 is identical to the TCA9555, except that the TCA9535 does not include the internal I/O pull-up resistor, which requires pull-ups and pull downs on unused I/O pins when configured as an input and undriven.

●Features

●• I2C to Parallel Port Expander

●• Wide Power Supply Voltage Range of 1.65 V to 5 V

●• Low Standby-Current Consumption

●• Open-Drain Active-Low Interrupt Output

●• 5-V Tolerant I/O Ports

●• 400-kHz Fast I2C Bus

●• Polarity Inversion Register

●• Address by Three Hardware Address Pins for Use of up to Eight Devices

●• Latched Outputs With High-Current Drive Capability for Directly Driving LEDs

●• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

●• ESD Protection Exceeds JESD 22

●   – 2000-V Human-Body Model (A114-A)

●   – 1000-V Charged-Device Model (C101)

●Applications

●• Servers

●• Routers (Telecom Switching Equipment)

●• Personal Computers

●• Personal Electronics (For Example, Gaming Consoles)

●• Industrial Automation

●• Products With GPIO-Limited Processors