參數(shù)資料
型號(hào): HT6542B
廠商: Holtek Semiconductor Inc.
英文描述: Keyboard Controller with PS/2
中文描述: 控制鍵盤(pán)的PS / 2
文件頁(yè)數(shù): 2/7頁(yè)
文件大?。?/td> 305K
代理商: HT6542B
Block Diagram
Pin Description
Pin No.
(DIP)
Pin No.
(PL CC)
Pin
Name
I/O
Pin Descriptions
1
2
KBCI
I
K eyboard clock input pin
2,3
3,4
OSCI,OSCO
I
System clock input pin, to generate internal
oscillator signal
4
5
RE S
I
Low level to reset HT6542B. After RES goes to high
level HT6542B needs 10ms to initial internal circuit
5,7,11,25
1,6,8,12,13,
23,29,34
NC
No connection
6
7
CS
I
Host-interface chip select, active low
8
9
RD
I
Host-interface read signal, active low
9
10
A0
I
Host-interface address select input. When high, it
selects the command/status registers; when low it
selects the data register
HT6542B
2
30th Nov ’95
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