TCA7408ZSZR - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

TCA7408ZSZR
Manufacturer

TI
ChipWorker Part#

CW58500527
Category

Interface IC, Interface Controller
Package

UCSP-16
Description

TEXAS INSTRUMENTS TCA7408ZSZR I/O Expander, 8Bit, 400kHz, I2C, 1.65V, 5.5V, UCSP
Documentation

Datasheet

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TCA7408ZSZR Specifications

Attribute	Attribute Value

Part Number	TCA7408ZSZR
Manufacturer	TI
ChipWorker Part#	CW58500527
Category	Interface IC, Interface Controller
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	UCSP-16
Supply Voltage (DC)	1.65V ~ 5.50V
Number of Outputs	8 Output
Number of Positions	16 Position
Clock Speed	400 kHz
Voltage Nodes	1.80 V, 2.70 V, 3.30 V, 3.60 V, 5.00 V
Number of Inputs and Outputs	8 Input IO
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	1.65V ~ 3.6V
Supply Voltage (Max)	5.5 V
Supply Voltage (Min)	1.65 V
Input Voltage	1.65V ~ 3.6V
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Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99
HK STC License	NLR

Product Description

TCA7408 is an 8-bit I/O expander for the two-line bidirectional bus (I2C) and is designed to provide general-purpose remote I/O expansion through the I2C interface.
The major benefit of this device is its wide VCC range. It can operate from 1.65 V to 3.6 V on the GPIO-port side and 1.65 V to 5.5 V on the SDA/SCL side. This allows the TCA7408 to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power.
The bidirectional voltage-level translation in the TCA7408 is provided through VCCI. VCCI should be connected to the VCC of the external SCL/SDA lines. The voltage level on the GPIO-port of the TCA7408 is determined by VCCP.
At power on, the I/Os are configured as inputs; however, the system master can enable the I/Os as either inputs or outputs by writing to the I/O direction bits. The data for each input or output is kept in the corresponding Input or Output register. All registers can be read by the system master.
TCA7408 has open-drain interrupt (INT) output pin that goes LOW when the input state of a GPIO-port changes from the input-state default register value. The device also has an interrupt masking feature by which the user can mask the interrupt from an individual GPIO-port.

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