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參數(shù)資料
| 型號(hào)： | ESC1621 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | RAM Mapping 32 X 4 LCD Controller for I/O uC |
| 中文描述： | 內(nèi)存映射32 × 4 LCD控制器的I / O加州大學(xué) |
| 文件頁(yè)數(shù)： | 6/7頁(yè) |
| 文件大?。?/td> | 56K |
| 代理商： | ESC1621 |
E S C1621
p. 6
Last update: 2004-03-05 12:13
A.C. Charac teristic s
Test Conditions
Sym.
Parameter
V
DD
Conditions
Min.
Typ.
Max.
Unit
3V
—
256
—
kHz
f
SYS1
System Clock
5V
On-chip RC oscillator
—
256
—
kHz
3V
—
32.768
—
kHz
f
SYS2
System Clock
5V
Crystal oscillator
—
32.768
—
kHz
3V
—
256
—
kHz
f
SYS3
System Clock
5V
External clock source
—
256
—
kHz
On-chip RC oscillator
—
F
SYS1
/1024
—
Hz
Crystal oscillator
—
F
SYS2
/128
—
Hz
f
LCD
LCD Clock
—
External clock source
—
F
SYS3
/1024
—
Hz
t
COM
LCD Common Period
n: Number of COM
—
n/f
LCD
—
s
3V
—
150
kHz
f
CLK1
Serial Data Clock (
WR
Pin)
5V
Duty cycle 50%
—
300
kHz
3V
—
75
kHz
f
CLK2
Serial Data Clock (
RD
Pin)
5V
Duty cycle 50%
—
150
kHz
f
TONE
Tone Frequency
On-chip RC oscillator
—
2.0 or 4.0
—
kHz
3V
t
CS
Serial Interface Reset Pulse Width
(Figure 3)
5V
CS
—
250
—
ns
Write mode
3.34
—
—
3V
Read mode
6.67
—
—
μs
Write mode
1.67
—
—
t
CLK
WR
,
RD
Input Pulse Width
(Figure 1)
5V
Read mode
3.34
—
—
μs
3V
t
r
,
t
f
Rise/Fall Time Serial Data Clock
Width
(Figure 1)
5V
—
—
120
—
ns
3V
t
su
Setup Time for DATA to
WR
,
RD
Clock Width
(Figure 2)
5V
—
—
120
—
ns
3V
t
h
Hold Time for DATA to
WR
,
RD
Clock Width
(Figure 2)
5V
—
—
120
—
ns
3V
t
su1
Setup Time for
CS
to
WR
,
RD
Clock Width
(Figure 3)
5V
—
—
100
—
ns
3V
t
h1
Hold Time for
CS
to
WR
,
RD
Clock Width
(Figure 3)
5V
—
—
100
—
ns
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