TCA6416APWR

$1.32

Description：IC XPND 400KHZ I2C SMBUS 24TSSOP
Series：-

SKU:802625a09d96 Category: I/O Expanders Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC XPND 400KHZ I2C SMBUS 24TSSOP
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Number of I/O：16
Interface：I2C, SMBus
Interrupt Output：Yes
Features：POR
Output Type：Push-Pull
Current - Output Source/Sink：10mA, 25mA
Clock Frequency：400 kHz
Voltage - Supply：1.65V ~ 5.5V
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：24-TSSOP (0.173", 4.40mm Width)
Supplier Device Package：24-TSSOP
Grade：-
Qualification：-

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TCA6416APWR

Overview

The TCA6416APWR is a low-voltage 16-bit I2C and SMBus I/O expander manufactured by Texas Instruments. It operates within a supply voltage range of 1.65V to 5.5V and supports clock frequencies up to 400 kHz. The device features push-pull outputs with current capabilities of 10mA and 25mA. It includes an interrupt output, power-on reset (POR), and configuration registers for flexible pin direction control. The component is housed in a 24-TSSOP package with a width of 4.40mm and is rated for operation between -40°C and +85°C.

Feature Summary

Provides 16 bidirectional digital input/output channels via I2C/SMBus interface
Supports voltage translation between different logic levels
Includes interrupt output capability for efficient event handling
Features configurable polarity inversion registers

Applications

Embedded systems requiring GPIO expansion
Industrial automation control panels
IoT devices with limited microcontroller pins

Procurement Notes

Verify the specific suffix 'A' indicates the variant with voltage translation capabilities as documented in official TI datasheets. Confirm RoHS3 compliance status through manufacturer documentation. Check for obsolescence notices or PCN updates prior to final design approval. Ensure the 24-TSSOP package dimensions match PCB footprint requirements.

Selection Notes

Select this component when 16 I/O lines are required with I2C connectivity. Consider the 1.65V to 5.5V operating range for compatibility with various system voltages. Verify that the 400 kHz speed meets bus timing requirements. Evaluate the need for interrupt functionality versus polling methods based on system architecture constraints.

Part Context

The TCA6416A belongs to Texas Instruments' family of low-voltage I/O expanders designed for I2C and SMBus protocols. It serves as a peripheral interface solution for microcontrollers needing additional digital I/O resources. The device integrates configuration registers to define input or output directions for each pin independently.