W83C43 Datasheet, PDF (17/21 Pages) Winbond – KEYBOARD CONTROLLER

TYPICAL APPLICATION CIRCUITS
Application for AT Mode
W83C43
RESETB
SA2
8042CS#
IORD#
IOWR#
D[0..7]
2
X1
Vcc ⁴⁰
Vcc ²⁵
3
X2
4
1
39
RESET
T0
T1
9
6
5
8
10
A2
CS
Vcc
RD
WR
12
13
D0
D1
P10 ²⁷
P11
P12
28
29
P13 ³⁰
P14
P15
P16
P17
31
32
33
34
P20
P21
P22
P23
21
22
23
24
14
15
16
17
18
19
7
20
D2
D3
D4
D5
D6
D7
GND
GND
P24/OB ³⁵
P25 ³⁶
P26/KCLK
P27/KDAT
37
38
NC ¹¹
NC ²⁶
KB8042-DIP
RAM SELECT JUMPER
MANUFACTURING MODE JUMPER
RCB
GATE20
Vcc
KEYBOARD INTERRUPT
7407
1
2
1
2
74ALS04
7407 ₁
2
KEYBOARD CLOCK
KEYBOARD DATA
- 17 -
Publication Release Date: January 1996
Revision A2