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PI4IOE5V9555LEX

Description
IC I/O EXPANDER 16B I2C 24TSSOP
Categorysemiconductor    Analog mixed-signal IC   
File Size583KB,16 Pages
ManufacturerDiodes
Websitehttp://www.diodes.com/
Environmental Compliance
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PI4IOE5V9555LEX Overview

IC I/O EXPANDER 16B I2C 24TSSOP

PI4IOE5V9555LEX Parametric

Parameter NameAttribute value
Number of I/Os16
interfaceI²C
Interrupt outputyes
characteristic-
Output type-
Current - sink/source output-
Clock frequency400kHz
Voltage - Power2.3 V ~ 5.5 V
Operating temperature-40°C ~ 85°C
PI4IOE5V9555
16-bit I2C-bus and SMBus I/O port with interrupt
Features
Operation power supply voltage from 2.3V to 5.5V
16-bit I/O pins which can be programmed as Input or
Output
5V tolerant I/Os
Polarity inversion register
Active LOW interrupt output
Low current consumption
0Hz to 400KHz clock frequency
Noise filter on SCL/SDA inputs
Power-on reset
ESD protection (4KV HBM and 1KV CDM)
Latch-up tested (exceeds 100mA)
Offered in two different packages: TSSOP-24 and
TQFN 4x4-24
Description
The PI4IOE5V9555 is an I
2
C-bus I/O expander that
provides 16 bits of General Purpose parallel
Input/Output (GPIO) expansion for I
2
C-bus/SMBus
applications. It includes the features such as higher
driving capability, 5V tolerance, lower power supply,
individual I/O configuration, and smaller packaging. It
provides a simple solution when additional I/O is needed
for ACPI power switches, sensors, push buttons, LEDs,
fans, etc.
The PI4IOE5V9555 consists of two 8-bit
configuration registers to configure the I/Os as either
inputs or outputs, and two 8-bit polarity registers to
change the polarity of the input port register data. The
data for each input or output is kept in the corresponding
Input port or Output port register. All registers can be
read by the system master.
The PI4IOE5V9555 open-drain interrupt output is
activated and indicate to the system when any input state
has changed. The power-on reset sets the registers to
their default values and initializes the device state
machine.
Three input pins (A0, A1, A2) can select I
2
C-bus
address of PI4IOE5V9555 from the eight preset address.
It allows up to eight PI4IOE5V9555 to share the same
I
2
C-bus/SMBus and provide maximum 128 I/Os.
Pin Configuration
Figure 1: TSSOP-24 ( Top View )
Figure 2: TQFN 4x4-24 ( Top View )
All trademarks are property of their respective owners.
2017-01-0008
www.diodes.com
1/18/2017
PT0551-5
1

PI4IOE5V9555LEX Related Products

PI4IOE5V9555LEX PI4IOE5V9555LE
Description IC I/O EXPANDER 16B I2C 24TSSOP IC I/O EXPANDER 16B I2C 24TSSOP
Number of I/Os 16 16
interface I²C I²C
Interrupt output yes yes
Clock frequency 400kHz 400kHz
Voltage - Power 2.3 V ~ 5.5 V 2.3 V ~ 5.5 V
Operating temperature -40°C ~ 85°C -40°C ~ 85°C
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