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參數資料
型號: W83C45
廠商: WINBOND ELECTRONICS CORP
英文描述: Keyboard Controller(鍵盤控制器)
中文描述: 鍵盤控制器(鍵盤控制器)
文件頁數: 3/21頁
文件大小: 245K
代理商: W83C45
W83C45
Publication Release Date: November 1996
Preliminary Revision 0.9
- 3 -
1.0 PIN DESCRIPTION
PIN NO.
I/O
NAME
FUNCTION
(40-pin
DIP)
(44-pin
PLCC)
AT MODE
PS/2 MODE
1
2
I
T0
K/B Clock Input
K/B Clock Input
2
3
-
NC
3
4
I
CLKIN
Clock I/P
Clock I/P
4
5
I
RESET
V
CC
Chip Reset
Chip Reset
5
6
-
Optional +5V Power
Supply
Optional + 5V Power
Supply
6
7
I
CS
GND
Chip Select
Chip Select
7
8
-
Optional Ground Power
Optional Ground Power
8
9
I
RD
A2
I/O Read
I/O Read
9
10
I
Connect to Address A2
Connect to Address A2
10
11
I
WR
NC
I/O Write
I/O Write
11, 25
1, 12, 13,
23, 28, 34
-
Reserved
Reserved
12, 13, 14,
15, 16, 17,
18, 19
14, 15, 16,
17, 18, 19,
20, 21
I/O
D0
D7
Data Bus D0
D7
Data Bus D0
D7
20
22
-
GND
Ground Power Supply
Ground Power Supply
21
24
O
P20
Bit 0 of Port2
(
RC
: System Reset)
Bit 0 of Port2
(
RC
: System Reset)
22
25
O
P21
Bit 1 of Port2
(
GA20
: GATE A20)
Bit 1 of Port2
(
GA20
: GATE A20)
23
26
I/O
P22
Bit 2 of Port2
(NC: User-defined I/O)
Bit 2 of Port2
(MDAT: Mouse Data
Output)
24
27
I/O
P23
Bit 3 of Port2
(NC: User-defined I/O)
Bit 3 of Port2
(MCLK: Mouse Clock
Output)
26
29
-
V
CC
Optional +5V Power
Supply
Optional + 5V Power
Supply
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