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PI4IOE5V9539 Datasheet Preview

PI4IOE5V9539 Datasheet

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

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PI4IOE5V9539
16-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
16-bit I2C-bus GPIO with interrupt and reset
5V tolerant I/Os
Polarity inversion register
Active LOW interrupt output
Active LOW reset input
Low current consumption
0Hz to 400KHz clock frequency
Noise filter on SCL/SDA inputs
Power-on reset
ESD protection (4KV HBM and 1KV CDM)
Offered in two different packages: TSSOP-24 and
TQFN 4x4-24
Description
The PI4IOE5V9539 provide 16 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 PI4IOE5V9539 consists of two 8-bit 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 PI4IOE5V9539 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. The RESET pin causes the same reset/default
I/O input configuration to occur without de-powering the
device, holding the registers and I2C-bus state machine
in their default state until the RESET input is once again
HIGH.
Two hardware pins (A0, A1) vary the fixed I2C-bus
address and allow up to four devices to share the same
I2C-bus/SMBus.
Pin Configuration
Figure 1: TSSOP-24 ( Top View )
2016-01-0019
Figure 2: TQFN 4x4-24 ( Top View )
PT0549-3
1
02/15/16




Pericom Semiconductor

PI4IOE5V9539 Datasheet Preview

PI4IOE5V9539 Datasheet

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

No Preview Available !

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Pin Description
Table 1: Pin Description
Pin
TSSOP24
TQFN24
1 22
2 23
Name
INT
A1
3 24 RESET
4 1 IO0_0
5 2 IO0_1
6 3 IO0_2
7 4 IO0_3
8 5 IO0_4
9 6 IO0_5
10 7 IO0_6
11 8 IO0_7
12 9 GND
13 10 IO1_0
14 11 IO1_1
15 12 IO1_2
16 13 IO1_3
17 14 IO1_4
18 15 IO1_5
19 16 IO1_6
20 17 IO1_7
21 18
A0
22 19 SCL
23 20 SDA
24 21 VCC
* I = Input; O = Output; P = Power; G = Ground
PI4IOE5V9539
16-bit I2C-bus and SMBus
low power I/O port with interrupt and reset
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Type
O
I
I
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
G
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I
P
Description
Interrupt input (open-drain)
Address input 1
Active low reset pin. Driving this pin LOW causes:
PI4IOE5V9539 to reset its state machine and register.
Port 0 input/output 0
Port 0 input/output 1
Port 0 input/output 2
Port 0 input/output 3
Port 0 input/output 4
Port 0 input/output 5
Port 0 input/output 6
Port 0 input/output 7
Ground
Port 1 input/output 0
Port 1 input/output 1
Port 1 input/output 2
Port 1 input/output 3
Port 1 input/output 4
Port 1 input/output 5
Port 1 input/output 6
Port 1 input/output 7
Address input 0
Serial clock line input
Serial data line open-drain
Supply voltage
2016-01-0019
PT0549-3
02/15/16
2


Part Number PI4IOE5V9539
Description 16-bit I2C-bus and SMBus low power I/O port
Maker Pericom Semiconductor
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PI4IOE5V9539 Datasheet PDF






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