Datasheet Texas Instruments TCA6424ARGJR — 数据表

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SCPS193C – JULY 2010 – REVISED APRIL 2014 TCA6424A Low-Voltage 24-Bit I2C and SMBus I/O Expander
With Interrupt Output, Reset, and Configuration Registers
1 Features 2 Description This 24-bit I/O expander for the two-line bidirectional
bus (I2C) is designed to provide general-purpose
remote I/O expansion for most microcontroller
families via the I2C interface [serial clock (SCL) and
serial data (SDA)]. DEVICE NAME
TCA6424A PACKAGE BODY SIZE UQFN (32) 5mm Г— 5mm (1) For all available packages, see the orderable addendum at
the end of the datasheet. P04 P05 P06 P07 5 7 8 4 6 P02 P03 3 P00 P01 1 2 RGJ/RSM PACKAGE
(BOTTOM VIEW) INT
VCCI 32 9 P10 31 10 P11 SDA 30 11 P12 SCL 29 12 P13 RESET
VCCP 28 13 P14 27 14 P15 ADDR 26 15 P16 GND 25 16 P17 22 21 20 19 18 17 P25 P24 P23 P22 P21 P20 Exposed
Center Pad 23 Device Information(1) 24 The major benefit of this device is its wide VCC range.
It can operate from 1.65 V to 5.5 V on the P-port side
and on the SDA/SCL side. This allows the TCA6424A
to interface with next-generation microprocessors and
microcontrollers on the SDA/SCL side, where supply …