PI4IOE5V9536 Datasheet, PDF (1/12 Pages) Pericom Semiconductor Corporation – SMBus low power I/O port

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PI4IOE5V9536
4-bit I²C-bus and SMBus low power I/O port
Features
 Operation power supply voltage from 2.3V to 5.5V
 4-bit I²C-bus GPIO with 5V tolerant I/Os
 Polarity inversion register
 Low current consumption
 0Hz to 1MHz clock frequency
 Noise filter on SCL/SDA inputs
 Power-on reset
 4 I/O pin which default to 4 inputs with 100kΩ pull-
up resistor
 ESD protection (4KV HBM and 1KV CDM)
 Offered in three different packages:SOIC-8,MSOP-8
and TDFN2x3-8
Pin Configuration
Description
The PI4IOE5V9536 provides 4 bits of General
Purpose parallel Input/Output (GPIO) expansion for I²C-
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 PI4IOE5V9536 consists of a 4-bit registers to
configure the I/Os as either inputs or outputs, and a 4-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.
Pin Description
* I = Input; O = Output; P = Power; G = Ground
Pin Name Type
1 IO0 I/O
Description
input/output 0
2 IO1 I/O input/output 1
3 IO2 I/O input/output 2
Figure1 : SOIC-8 & MSOP-8
4 GND G
Supply Ground
5 IO3 I/O input/output 3
6 SCL I
Serial clock line
TDFN 2x3
7 SDA I/O Serial data line
8 VCC P
Power supply
Figure2 : TDFN 2x3-8
2016-01-0028
PT0557-1
02/15/16
1