參數(shù)資料
型號(hào): HT6221
廠商: Holtek Semiconductor Inc.
英文描述: Multi-Purpose Encoders
中文描述: 多功能編碼器
文件頁數(shù): 5/13頁
文件大?。?/td> 153K
代理商: HT6221
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
V
DD
Conditions
I
OL3
Output Sink Current for C1~C8
3V
V
O
=0.3V
10
30
A
V
IH1
Input High Voltage for R1~R8
3V
1.9
3.0
V
V
IL1
Input Low Voltage for R1~R8
3V
0
0.8
V
V
IH2
Input High Voltage for C1~C8
3V
1.1
3.0
V
V
IL2
Input Low Voltage for C1~C8
3V
0
0.6
V
V
IH3
Input High Voltage for AIN
3V
1.25
3.0
V
V
IL3
Input Low Voltage for AIN
3V
0
0.6
V
R
PH1
Input Pull-high Resistance for AIN
3V
V
IN
=0V
100
200
400
k
R
PL1
Input Pull-low Resistance for AIN
3V
V
IN
=3V
70
150
250
k
R
PL2
Input Pull-low Resistance for R1~R8
3V
V
IN
=3V
120
200
320
k
R
PL3
Input Pull-low Resistance for C1~C8
3V
V
IN
=3V
300
500
1500
k
f
OSC
System Frequency
455kHz ceramic
resonator
455
kHz
HT6221/HT6222
5
March 2, 2000
Functional Description
Keyboard scan
The HT6221/HT6222 remain in the halt mode
during the standby state (at this time, the oscil-
lator stops, and the standby current<1 A). The
HT6221 consists of 32 active keys, and the
HT6222 has 64 active keys. The keyboard
formsoftheHT6221/HT6222areshownbelow.
The HT6221 keyboard form
The HT6222 keyboard form
$
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相關(guān)PDF資料
PDF描述
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