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PCAL6408A Datasheet(PDF) 6 Page - NXP Semiconductors

Part # PCAL6408A
Description  Low-voltage translating, 8-bit I2C-bus/SMBus I/O expander with interrupt output, reset, and configuration registers
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCAL6408A Datasheet(HTML) 6 Page - NXP Semiconductors

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PCAL6408A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 2 — 6 December 2012
6 of 48
NXP Semiconductors
PCAL6408A
Low-voltage translating, 8-bit I2C-bus/SMBus I/O expander
5.2 Pin description
[1]
All I/O are configured as input at power-on.
Table 3.
Pin description
Symbol
Pin
Description
TSSOP16
HVQFN16
XQFN16
VDD(I2C-bus)
1
15
15
Supply voltage of I2C-bus. Connect directly to the VDD of the external
I2C master. Provides voltage-level translation.
ADDR
2
16
16
Address input. Connect directly to VDD(P) or ground.
RESET
3
1
1
Active LOW reset input. Connect to VDD(I2C-bus) through a pull-up
resistor if no active connection is used.
P0[1]
4
2
2
Port P input/output 0.
P1[1]
5
3
3
Port P input/output 1.
P2[1]
6
4
4
Port P input/output 2.
P3[1]
7
5
5
Port P input/output 3.
VSS
8
6
6
Ground.
P4[1]
9
7
7
Port P input/output 4.
P5[1]
10
8
8
Port P input/output 5.
P6[1]
11
9
9
Port P input/output 6.
P7[1]
12
10
10
Port P input/output 7.
INT
13
11
11
Interrupt output. Connect to VDD(I2C-bus) through a pull-up resistor.
SCL
14
12
12
Serial clock bus. Connect to VDD(I2C-bus) through a pull-up resistor.
SDA
15
13
13
Serial data bus. Connect to VDD(I2C-bus) through a pull-up resistor.
VDD(P)
16
14
14
Supply voltage of PCAL6408A for Port P.


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