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TCA6408A-Q1

Texas Instruments
Part Number TCA6408A-Q1
Manufacturer Texas Instruments
Description Low-Voltage 8-Bit I2C and SMBus I/O Expander
Published Oct 3, 2019
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TCA6408A-Q1 SCPS234 – SEPTEMBE...
Datasheet PDF File TCA6408A-Q1 PDF File

TCA6408A-Q1
TCA6408A-Q1

Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TCA6408A-Q1 SCPS234 – SEPTEMBER 2016 TCA6408A-Q1 Low-Voltage 8-Bit I2C and SMBus I/O Expander With Interrupt Output 1 Features •1 I2C to Parallel Port Expander • Operating Power-Supply Voltage Range of 1.
65 V to 3.
6 V • Allows Bidirectional Voltage-Level Translation and GPIO Expansion Between 1.
8-, 2.
5-, and 3.
3-V I2C Bus and P-Ports • Low Standby Current Consumption • 400-kHz Fast I2C Bus • Hardware Address Pin Allows Two TCA6408A-Q1 Devices on the Same I2C/SMBus Bus • Active-Low Reset (RESET) Input • Open-Drain Active-Low Interrupt (INT) Output • Input and 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 meets 100 mA Per AEC Q100-004 • Schmitt-Trigger Action Allows Slow Input Transition and Better Switching Noise Immunity at the SCL and SDA Inputs • ESD Protection – 2000-V Human Body Model (Q100-002) – 1000-V Charged-Device Model (Q100-011) 2 Applications • Automotive Infotainment • Advanced Drive Assistance Systems (ADAS) • Automotive Body Electronics • HEV, EV, and Power train • Industrial, Factory, and Building Automation • Test & Measurement • EPOS 3 Description The TCA6408A-Q1 is a 16-pin device that provides 8bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus) protocol.
This device can operate with a power supply voltage ranging from 1.
65 V to 3.
6 V on both the I2C bus side (VCCI) and on the P-port side (VCCP).
This allows the TCA6408A-Q1 to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power.
In contrast to the dropping power supplies of microprocessors and micro...


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