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REMOTE 16-BIT I C AND SMBus, LOW-POWER I/O EXPANDER
WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
2
SCPS129E – AUGUST 2005 – REVISED FEBRUARY 2007
TERMINAL FUNCTIONS
NO.
SOIC (D),
SSOP (DB),
QSOP (DBQ),
TSSOP (PW), AND
TVSOP (DGV)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
NAME
DESCRIPTION
QFN (RGE)
22
23
24
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
INT
A1
A2
P00
P01
P02
P03
P04
P05
P06
P07
GND
P10
P11
P12
P13
P14
P15
P16
P17
A0
SCL
SDA
V
CC
Interrupt output. Connect to V
CC
through a pullup resistor.
Address input. Connect directly to V
CC
or ground.
Address input. Connect directly to V
CC
or ground.
P-port input/output. Push-pull design structure.
P-port input/output. Push-pull design structure.
P-port input/output. Push-pull design structure.
P-port input/output. Push-pull design structure.
P-port input/output. Push-pull design structure.
P-port input/output. Push-pull design structure.
P-port input/output. Push-pull design structure.
P-port input/output. Push-pull design structure.
Ground
P-port input/output. Push-pull design structure.
P-port input/output. Push-pull design structure.
P-port input/output. Push-pull design structure.
P-port input/output. Push-pull design structure.
P-port input/output. Push-pull design structure.
P-port input/output. Push-pull design structure.
P-port input/output. Push-pull design structure.
P-port input/output. Push-pull design structure.
Address input. Connect directly to V
CC
or ground.
Serial clock bus. Connect to V
CC
through a pullup resistor.
Serial data bus. Connect to V
CC
through a pullup resistor.
Supply voltage
3
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