TCA9535RGER

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 controller 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