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TCA9534PWR

8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers

Manufacturer: TI
Mfr.Part #: TCA9534PWR
Datasheet: TCA9534PWR Datasheet (PDF)
Package/Case: TSSOP-16
Product Type: Drivers
RoHS:
Lifecycle: Active

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TCA9534PWR General Description

The TCA9534PWR is part of Texas Instruments' family of I2C-bus I/O expanders. It provides additional digital I/O pins that can be controlled and monitored via the I2C communication protocol. This device is particularly useful when the number of available GPIO pins on a microcontroller is limited.

Key Features

ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 1000-V Charged-Device Model (C101)
Low Standby Current Consumption
IC to Parallel Port Expander
Open-Drain Active-Low Interrupt Output
Operating Power-Supply Voltage Range of 1.65 V to 5.5 V
5-V Tolerant I/O Ports
400-kHz Fast IC Bus
Three Hardware Address Pins Allow up to Eight Devices on the IC/SMBus
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 Exceeds 100 mA Per JESD 78, Class II

Application

Microcontroller I/O Expansion: Extending the number of available I/O pins on microcontrollers that have limited GPIO resources.
Keypad Scanning: Simplifying the interface with keypads and matrix switches.
LED Control: Controlling multiple LEDs individually or in patterns.
Digital Sensors: Connecting and monitoring digital sensors or switches.
Signal Multiplexing: Enabling signal multiplexing and selection in instrumentation and data acquisition systems.
System Monitoring: Reading and monitoring digital signals from various parts of a system.
Remote Control: Implementing remote control functions with digital I/O.
Industrial Automation: Utilizing digital I/O for controlling and monitoring industrial equipment.

Specifications

Category	Integrated Circuits (ICs)InterfaceI/O Expanders	Mfr	Texas Instruments
Series	-	Package	Tape & Reel (TR)Cut Tape (CT)Digi-Reel®
Product Status	Active	Digi-Key Programmable	Not Verified
Number of I/O	8	Interface	I²C
Interrupt Output	Yes	Features	-
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	16-TSSOP (0.173", 4.40mm Width)	Supplier Device Package	16-TSSOP
Base Product Number	TCA9534	Number of I/Os	8
Supply voltage (min) (V)	1.65	Supply voltage (max) (V)	5.5
Addresses	8	Rating	Catalog
Frequency (max) (MHz)	0.4	Operating temperature range (°C)	-40 to 85