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PCA9539 Datasheet(PDF) 4 Page - NXP Semiconductors

Part No. PCA9539
Description  16-bit I2C and SMBus, low power I/O port with interrupt and reset
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCA9539 Datasheet(HTML) 4 Page - NXP Semiconductors

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Philips Semiconductors
Product data sheet
PCA9539
16-bit I2C and SMBus, low power I/O port
with interrupt and reset
2004 Sep 30
4
BLOCK DIAGRAM
POWER-ON
RESET
INPUT
FILTER
I2C/SMBUS
CONTROL
INPUT/
OUTPUT
PORTS
WRITE pulse
READ pulse
A0
A1
SCL
SDA
VDD
VSS
8-BIT
I/O0.0
I/O0.1
I/O0.2
I/O0.3
I/O0.4
I/O0.5
I/O0.6
I/O0.7
SW02202
NOTE: ALL I/Os ARE SET TO INPUTS AT RESET
8-BIT
INPUT/
OUTPUT
PORTS
I/O1.0
I/O1.1
I/O1.2
I/O1.3
I/O1.4
I/O1.5
I/O1.6
I/O1.7
WRITE pulse
READ pulse
VCC
INT
LP
FILTER
RESET
PCA9539
Figure 3. Block diagram


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