參數資料
型號: HT82K28
廠商: Holtek Semiconductor Inc.
英文描述: Win98 Keyboard Encoder
中文描述: Win98鍵盤編碼器
文件頁數: 3/20頁
文件大?。?/td> 143K
代理商: HT82K28
Electrical Characteristics
Ta=25 C
Symbol
Parameter
Test Conditions
Min.
Typ. Max. Unit
V
DD
Operating Voltage
4.75
5
5.25
V
I
DD
Operating Current
2
5
mA
V
IL
Input Low Voltage (C0~C7)
0
0.6
V
Input Low Voltage (DATA, CLOCK)
0
0.6
V
V
IH
Input High Voltage
3.5
V
DD
V
V
OL
Output Low Voltage (R0~R18)
I
OL
=10mA
0.5
V
Output Low Voltage (DATA, CLOCK)
I
OL
=15mA
0.5
V
R
ph
Internal Pull-high Resistance (C0~C7)
5
10
20
k
Internal Pull-high Resistance
(CLOCK, DATA)
2
5
15
k
f
SYS
System Clock
4
MHz
HT82K28A
3
February 16, 2000
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