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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： | 控制鍵盤的PS / 2 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 305K |
| 代理商： | HT6542B |
Pin No.
(DIP)
Pin No.
(PL CC)
Pin
Name
I/O
Pin Descriptions
10
11
WR
I
Host-interface write signal, active low
12~19
14~21
D0~D7
I/O
Host interface data bus. An 8-bit bi-directional port
for data transfers between the host CPU and the
HT6542B
20
22
VSS
—
Circuit ground
21
24
RC
O
Host-reset control signal output
22
25
A20
O
Gate A20 control signal output
23
26
P22/MSDO
I/O
General purpose input/output pin for A T
motherboard.
Mouse data output pin for PS/2 motherboard
24
27
P23/MSCO
I/O
General purpose input/output pin for A T
motherboard.
Mouse clock output pin for PS/2 motherboard
26
28
TE ST
I
Test input pin, for IC test only. Connected to VCC in
applications
27
30
P10/KBDI
I/O
General purpose input/output pin for A T
motherboard.
K eyboard data input pin for PS/2 motherboard
28
31
P11/MSDI
I/O
General purpose input/output pin for A T
motherboard.
Mouse data input pin for PS/2 motherboard
29~33
32~33
35~37
P12~P16
I/O
General purpose input/output pins
34
38
KBD-INH
I
K eyboard inhibit input. When low, keyboard is
inhibited. When high, keyboard transmission is
enabled.
35
39
KB-OBFO
O
Keyboard output buffer full interrupt for AT and
PS/2 mother board (active high)
36
40
MS-OBFO
O
Output low for AT mothboard.
Mouse output buffer full interrupt for PS/2 mother
board (active high).
37
41
KBCO
O
K eyboard clock output pin for AT and PS/2
motherboard.
38
42
KBDO
O
K eyboard data output pin for AT and PS/2
motherboard.
39
43
KBDI/MSCI
I
K eyboard data input pin for AT motherboard
Mouse clock input pin for PS/2 motherboard
40
44
VDD
—
Positive power supply
Absolute Maximum Ratings
Supply Voltage ............................ –0.3V to 5.5V
Input Voltage .................. V
SS
–0.3V to V
DD
+0.3
Storage Temperature ............... –50
°
C to 125
°
C
Operating Temperature ................. 0
°
C to 70
°
C
HT6542B
3
30th Nov ’95
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PDF描述 |
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| HT6571 | Multiple RS-232 Drivers And Receivers(多個(gè)RS-232驅(qū)動(dòng)器和接收器) |
| HT6576 | Advanced SCSI CHIP |
| HT6576A | Advanced SCSI CHIP |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT6542B(40DIP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Keyboard Controller |
| HT6542B(44PLCC) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Keyboard Controller |
| HT6547A(28DIP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Encoder |
| HT6547C | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:KEYBOARD ENCODER FOR WINDOWS95 |
| HT6547C(40DIP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Encoder |
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