TCA6416A Low-Voltage 16-Bit I2C and SMBus I/O Expander | TI.com

TCA6416A (ACTIVE) Low-Voltage 16-Bit I2C and SMBus I/O Expander

 

Description

The TCA6416A is a 24-pin device that provides 16-bits of general purpose parallel input/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 on the I2C bus side (VCCI) and a power supply voltage ranging from 1.65 V to 5.5 V on the P-port side (VCCP).

The device supports both 100-kHz (Standard-mode) and 400-kHz (Fast-mode) clock frequencies. I/O expanders such as the TCA6416A provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, etc.

Features

  • I2C to Parallel Port Expander
  • Operating Power-Supply Voltage Range of 1.65 V to 5.5 V
  • Allows Bidirectional Voltage-Level Translation and GPIO Expansion Between 1.8-V, 2.5-V, 3.3-V, and 5-V I2C Bus and P-Ports
  • Low Standby Current Consumption of 3 µA
  • 5-V Tolerant I/O Ports
  • 400-kHz Fast I2C Bus
  • Hardware Address Pin Allows Two TCA6416A Devices on the Same I2C/SMBus Bus
  • Active-Low Reset Input (RESET)
  • Open-Drain Active-Low Interrupt Output (INT)
  • Input/Output Configuration Register
  • Polarity Inversion Register
  • Internal Power-On Reset
  • Power-Up With All Channels Configured as Inputs
  • No Glitch On Power Up
  • Noise Filter on SCL/SDA Inputs
  • Latched Outputs With High-Current Drive Maximum 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)
    • 200-V Machine Model (A115-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
TCA6416A Order now 16     1.65     5.5     Adjustable     400     Configuration Registers
Interrupt Pin
Reset Pin    
2     Catalog     -40 to 85     TSSOP | 24
WQFN | 24    
TCA6408A Order now 8     1.65     5.5     Adjustable     400     Configuration Registers
Interrupt Pin
Reset Pin    
2     Catalog     -40 to 85     TSSOP | 16
UQFN | 16
VQFN | 16    
TCA6424A Order now 24     1.65     5.5     Adjustable     400     Configuration Registers
Interrupt Pin
Reset Pin    
2     Catalog     -40 to 85     UQFN | 32