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TCA6408APWR

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

Manufacturer:

TI
Mfr.Part #:

TCA6408APWR
Datasheet:

TCA6408APWR Datasheet (PDF)
Number of I/Os:

8
Features:

Adjustable I/O level, Configuration registers, Interrupt pin, Reset pin
Supply voltage (min) (V):

1.65
Supply voltage (max) (V):

5.5
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TCA6408APWR General Description

The TCA6408A is a 16-pin device that provides 8-bits of general purpose parallel input/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 5.5 V on both the I²C bus side (V_CCI) and on the P-port side (V_CCP). This allows the TCA6408A 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 microcontrollers, some PCB components such as LEDs remain at a 5-V power supply.

The device supports both 100-kHz (Standard-mode) and 400-kHz (Fast-mode) clock frequencies. I/O expanders such as the TCA6408A provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, and so forth.

Key Features

I²C to Parallel port expander
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, 2.5-V, 3.3-V, and 5-V I²C bus and P-ports
Low standby current consumption of 1 µA
5-V Tolerant I/O ports
400-kHz Fast I²C bus
Hardware address pin allows two TCA6408A 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 and 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
Schmitt-trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs
ESD Protection exceeds JESD 22
- 2000-V Human body model (A114-A)
- 1000-V Charged-device model (C101)

Specifications

Number of I/Os	8	Features	Adjustable I/O level, Configuration registers, Interrupt pin, Reset pin
Supply voltage (min) (V)	1.65	Supply voltage (max) (V)	5.5
Addresses	2	Rating	Catalog
Frequency (max) (MHz)	0.4	Operating temperature range (°C)	-40 to 85

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Ratings and Reviews

L**y 11/07/2021

The seller is good. The parcel sent, the protection of the order ended, the seller said that you need to wait, waited more than 60 days, no parcel or money. The seller is very good