W83601R/G
6. PIN DESCRIPTION
I/OD
I/OD
- TTL level bi-directional pin open drain output with 24 mA sink capability
24t
- TTL level bi-directional pin open drain output with 12 mA sink capability and schmitt-trigger level input
- CMOS level bi-directional pin with 21 mA source-sink capability
- TTL level input pin
12ts
I/O
21
IN
IN
IN
t
- CMOS level input pin with internal pull down resistor
- TTL level Schmitt-trigger input pin
cd
ts
OD
- Open drain output pin with 24 mA sink capability
24
6.1 W83601R/G Universal General Purpose I/O Port for I2C BUS
PIN
1
SYMBOL
SCL
I/O
FUNCTION
INts
SMBus Clock. (I2C clock)
2
SDA
I/OD12ts SMBus bi-directional Data.(I2C data)
General Purpose I/O. This pin is a setting pin for SMBus (I2C)
address bit 0 during power-on reset or RST# pin reset.
GP20
A0
I/O21
3
4
5
INcd
I/O21
INcd
General Purpose I/O. This pin is a setting pin for SMBus (I2C)
address bit 1 during power-on reset or RST# pin reset.
GP21
A1
General Purpose I/O. This pin is a setting pin for SMBus (I2C)
address bit 2 during power-on reset or RST# pin reset.
GP22
A2
I/O21
INcd
6
7
GP10
I/OD24t
General Purpose I/O default input.
General Purpose I/O default input.
General Purpose I/O default input.
General Purpose I/O default input.
Ground Pin.
GP11
GP23
GP24
VSS
I/OD24t
I/OD24t
I/OD24t
PWR
8
9
10
11
GP25
I/OD24t
General Purpose I/O default input.
General Purpose I/O default input.
GP26
INT
I/OD24t
OD24
12
Auto-generate Interrupt signal when a transition on GPI inputs is
detected. This interrupt is either on pin12 or pin18.
13
14
15
16
17
GP12
GP13
GP14
GP15
GP16
I/OD24t
I/OD24t
I/OD24t
I/OD24t
I/OD24t
General Purpose I/O default input.
General Purpose I/O default input.
General Purpose I/O default input.
General Purpose I/O default input.
General Purpose I/O default input.
General Purpose I/O default input.
GP17
INT
I/OD24t
OD24
18
Auto-generate Interrupt signal when a transition on GPI inputs is
detected. This interrupt is either on pin12 or pin18
19
20
RST#
VDD
Ints
Reset signal input.
Power Pin.
PWR
Publication Release Date: December 12, 2007
- 5 -
Revision 1.2
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