參數(shù)資料
型號(hào): HT1621
廠商: Holtek Semiconductor Inc.
英文描述: RAM Mapping 32 x 4 LCD Controller for I/O μC(存儲(chǔ)器映射、用于I/O接口微機(jī)的32 x 4模式LCD控制器)
中文描述: 內(nèi)存映射32 × 4 LCD控制器的I / O微控制(存儲(chǔ)器映射,用于的I / O接口微機(jī)的32 × 4模式液晶顯示控制器)
文件頁(yè)數(shù): 7/20頁(yè)
文件大?。?/td> 168K
代理商: HT1621
D.C. Characteristics
Ta=25 C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
V
DD
Operating Voltage
2.4
5.2
V
I
DD1
Operating Current
3V
No load/LCD ON
On-chip RC oscillator
150
300
A
5V
300
600
A
I
DD2
Operating Current
3V
No load/LCD ON
Crystal oscillator
60
120
A
5V
120
240
A
I
DD3
Operating Current
3V
No load/LCD ON
External clock source
100
200
A
5V
200
400
A
I
STB
Standby Current
3V
No load
Power down mode
0.1
5
A
5V
0.3
10
A
V
IL
Input Low Voltage
3V
DATA, WR, CS, RD
0
0.6
V
5V
0
1.0
V
V
IH
Input High Voltage
3V
DATA, WR, CS, RD
2.4
3.0
V
5V
4.0
5.0
V
I
OL1
DATA, BZ, BZ, IRQ
3V
V
OL
=0.3V
0.5
1.2
mA
5V
V
OL
=0.5V
1.3
2.6
mA
I
OH1
DATA, BZ, BZ
3V
V
OH
=2.7V
0.4
0.8
mA
5V
V
OH
=4.5V
0.9
1.8
mA
I
OL2
LCD Common Sink
Current
3V
V
OL
=0.3V
80
150
A
5V
V
OL
=0.5V
150
250
A
I
OH2
LCD Common Source
Current
3V
V
OH
=2.7V
80
120
A
5V
V
OH
=4.5V
120
200
A
I
OL3
LCD Segment Sink
Current
3V
V
OL
=0.3V
60
120
A
5V
V
OL
=0.5V
120
200
A
I
OH3
LCD Segment Source
Current
3V
V
OH
=2.7V
40
70
A
5V
V
OH
=4.5V
70
100
A
R
PH
Pull-high Resistor
3V
DATA, WR, CS, RD
40
80
150
k
5V
30
60
100
k
HT1621
7
January 10, 2001
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