TCA6416PWT

低压16位I2C和SMBus I / O扩展器，带有中断输出，复位和配置寄存器 LOW-VOLTAGE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

Description

This 16-bit I/O expander for the two-line bidirectional bus I2C is designed to provide general-purpose

remote I/O expansion for most microcontroller families via the I2C interface [serial clock SCL and serial data SDA].

Features

• 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 SCL/SDA and 1.8-V, 2.5-V, 3.3-V, or 5-V P Port

– 2.5-V SCL/SDA and 1.8-V, 2.5-V, 3.3-V, or 5-V P Port

– 3.3-V SCL/SDA and 1.8-V, 2.5-V, 3.3-V, or 5-V P Port

– 5-V SCL/SDA and 1.8-V, 2.5-V, 3.3-V, or 5-V P Port

• I2C to Parallel Port Expander

• Low Standby Current Consumption of 1 μA

• Schmitt-Trigger Action Allows Slow Input Transition and Better Switching Noise Immunity at the SCL and SDA Inputs

– Vhys = 0.18 V Typ at 1.8 V

– Vhys = 0.25 V Typ at 2.5 V

– Vhys = 0.33 V Typ at 3.3 V

– Vhys = 0.5 V Typ at 5 V

• 5-V Tolerant I/O Ports

• Active-Low Reset RESET Input

• Open-Drain Active-Low Interrupt INT Output

• 400-kHz Fast I2C Bus

• 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