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Pericom Semiconductor

PI4IOE5V9522 Datasheet Preview

PI4IOE5V9522 Datasheet

4-bit I2C-bus and SMBus low power I/O port

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PI4IOE5V9522
4-bit I2C-bus and SMBus low power I/O port with interrupt and reset
Features
Operation power supply voltage from 2.3V to 5.5V
4-bit I2C-bus GPIO with interrupt and reset
5V tolerant I/Os
Active Low interrupt output
Active Low reset input
Polarity inversion register
Low current consumption
0Hz to 1MHz clock frequency
Noise filter on SCL/SDA inputs
Power-on reset
ESD protection (4KV HBM and 1KV CDM)
Package offered:MSOP-10L
Pin Configuration
Description
The PI4IOE5V9522 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 PI4IOE5V9522 consists of a 4-bit register 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.
The PI4IOE5V9522 open-drain interrupt output
(INT) is activated when any input state and is used to
indicate the system master that an input state has
changed.
The power-on reset sets the registers to their
default values and initializes the device state machine.
The Reset pin causes the same reset/initialization to
occur without de-powering the device.
Figure1 :MSOP-10
2016-01-0027
PT0556-1
02/15/16
1




Pericom Semiconductor

PI4IOE5V9522 Datasheet Preview

PI4IOE5V9522 Datasheet

4-bit I2C-bus and SMBus low power I/O port

No Preview Available !

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Pin Description
Table 1. Pin configuration
* I = Input; O = Output; P = Power; G = Ground
Pin Name
1 IO0
Type
I/O
2 IO1
I/O
3 IO2
I/O
4 IO3
I/O
5 GND
G
6 RESET
7 INT
8 SCL
I
O
I
9 SDA
I/O
10 VCC
P
PI4IOE5V9522
4-bit I2C-bus and SMBus
low power I/O port with interrupt and reset
|||||||||||||||||
input/output 0
Description
input/output 1
input/output 2
input/output 3
Supply Ground
Reset pin
Interrupt output (open-drain)
Serial clock line
Serial data line
Power supply
2016-01-0027
PT0556-1
02/15/16
2


Part Number PI4IOE5V9522
Description 4-bit I2C-bus and SMBus low power I/O port
Maker Pericom Semiconductor
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PI4IOE5V9522 Datasheet PDF






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