TCA9535 Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers | TI.com

TCA9535 (ACTIVE) Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers

 

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)

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Parametrics

Compare all products in I2C general purpose I/O (GPIO) Email Download to Excel
Part number Order Number of I/Os VCC (Min) (V) VCC (Max) (V) GPIO Frequency (Max) (kHz) Features Addresses Rating Operating temperature range (C) Package Group
TCA9535 Order now 16     1.65     5.5     VCC     400     Configuration Registers
Interrupt Pin    
8     Catalog     -40 to 85     SSOP | 24
TSSOP | 24
VQFN | 24
WQFN | 24