W83977A Winbond Electronics Corp America, W83977A Datasheet - Page 24
W83977A
Manufacturer Part Number
W83977A
Description
Winbond I/O
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83977A.pdf
(160 pages)
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1.7 KBC Interface, continued
1.8 POWER PINS
1.9 ACPI Interface
KBLOCK
GP13
VCC
VSB
GND
VBAT
XTAL1
XTAL2
SYMBOL
SYMBOL
SYMBOL
58
20, 55, 85,
115
71
25, 62, 90,
120
PIN
PIN
64
63
61
PIN
I/O
IN
IN
I/O
I/O
NA
O
8t
16t
ts
C
+5V power supply for the digital circuitry
+5V stand-by power supply for the digital circuitry
Ground
W83C45 KINH (P17) Input. (CR2B bit 0 = 0, default)
General purpose I/O port 1 bit 3. (CR2B bit 0 = 1)
battery voltage input
32.768Khz Clock Input
32.768Khz Clock Output
-16-
FUNCTION
FUNCTION
FUNCTION
Publication Release Date: April 1998
W83977TF
PRELIMINARY
Revision 0.62
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