參數(shù)資料
型號(hào): HT16270
廠商: Holtek Semiconductor Inc.
英文描述: RAM Mapping 64 x16 LCD Controller for I/O C
中文描述: 內(nèi)存映射64 x16 LCD控制器的I /業(yè)主立案法團(tuán)
文件頁數(shù): 7/17頁
文件大?。?/td> 151K
代理商: HT16270
A.C. Characteristics
Ta=25 C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max. Unit
V
DD
Conditions
f
SYS1
System Clock
3V
On-chip RC oscillator
22
32
40
kHz
5V
24
32
40
kHz
f
SYS2
System Clock
3V
External clock source
32
kHz
5V
32
kHz
f
LCD1
LCD Frame Frequency
3V
On-chip RC oscillator
44
64
80
Hz
5V
48
64
80
Hz
f
LCD2
LCD Frame Frequency
3V
External clock source
64
Hz
5V
64
Hz
t
COM
LCD Common Period
n: Number of COM
n/f
LCD
sec
f
CLK1
Serial Data Clock (WR Pin)
3V
Duty cycle 50%
150
kHz
5V
300
kHz
f
CLK2
Serial Data Clock (RD Pin)
3V
Duty cycle 50%
75
kHz
5V
150
kHz
t
CS
Serial Interface Reset Pulse
Width
(Figure3)
CS
250
ns
t
CLK
WR, RD Input Pulse Width
(Figure1)
3V
Write mode
3.34
s
Read mode
6.67
5V
Write mode
1.67
s
Read mode
3.34
t
r
, t
f
Rise/Fall Time Serial Data
ClockWidth
(Figure1)
3V
120
ns
5V
t
su
SetupTimeforDATAtoWR,
RDClockWidth
(Figure2)
3V
120
ns
5V
t
h
Hold Time for DATA to WR,
RDClockWidth
(Figure2)
3V
120
ns
5V
t
su1
Setup Time for CS to WR,
RDClockWidth
(Figure3)
3V
100
ns
5V
t
h1
HoldTimeforCStoWR,RD
ClockWidth
(Figure3)
3V
100
ns
5V
HT1627
7
April 21, 2000
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