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参数资料
| 型号： | AY0438 |
| 厂商： | Microchip Technology Inc. |
| 英文描述： | 32-Segment CMOS LCD Driver |
| 中文描述： | 32段LCD驱动器的CMOS |
| 文件页数： | 1/11页 |
| 文件大小： | 148K |
| 代理商： | AY0438 |
1995 Microchip Technology Inc.
DS70010I-page 1
FEATURES
Drives up to 32 LCD segments of arbitrary config-
uration
CMOS process for: wide supply voltage range,
low- power operation, high-noise immunity, wide
temperature range
CMOS and TTL-compatible inputs
Electrostatic discharge protection on all pins
Cascadable
On-chip oscillator
Requires only three control lines
APPLICATIONS
Industrial displays
Consumer product displays
Telecom product displays
Automotive dashboard displays
DESCRIPTION
The AY0438 is a CMOS integrated device that drives a
liquid crystal display, usually under microprocessor
control. The part acts as a smart peripheral that drives
up to 32 LCD segments. It needs only three control
lines due to its serial input construction. It latches the
data to be displayed and relieves the microprocessor
from the task of generating the required waveforms.
The AY0438 can drive any standard or custom parallel
drive LCD display, whether it be field effect or dynamic
scattering; 7-, 9-, 14- or 16-segment characters; deci-
mals; leading + or -; or special symbols. Several
AY0438 devices can be cascaded. The AC frequency
of the LCD waveforms can either be supplied by the
user or generated by attaching a capacitor to the LCD
input, which controls the frequency of an internal oscil-
lator.
The AY0438 is available in 40-lead dual in-line plastic
and 44-lead PLCC packages. Unpackaged dice are
also available.
PIN CONFIGURATION
40-Lead Dual In-line
CLOCK
SEG 1
SEG 2
SEG 3
V
SS
DATA OUT
DATA IN
SEG 4
SEG 5
LCD
Φ
BP
SEG 6
SEG 7
SEG 8
SEG 9
SEG 10
SEG 11
SEG 12
SEG 13
SEG 14
V
DD
LOAD
SEG 32
SEG 31
SEG 30
SEG 29
SEG 28
SEG 27
SEG 26
SEG 25
SEG 24
SEG 23
SEG 22
SEG 21
SEG 20
SEG 19
SEG 18
SEG 17
SEG 16
SEG 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
NC
DATA OUT
DATA IN
SEG 4
SEG 5
LCD
Φ
BP
SEG 6
SEG 7
SEG 8
NC
SEG 29
SEG 28
SEG 27
SEG 26
SEG 25
SEG 24
SEG 23
SEG 22
SEG 21
SEG 20
SEG 19
N
S
S
S
L
V
D
C
S
S
S
V
S
7
8
9
10
11
12
13
14
15
16
17
39
38
37
36
35
34
33
32
31
30
29
N
S
S
S
S
S
S
S
S
S
S
6
5
4
3
2
1
4
4
4
4
4
2
2
2
2
2
2
2
2
2
1
1
44 PLCC
AY0438
A
AY0438
32-Segment CMOS LCD Driver
相关PDF资料 |
PDF描述 |
|---|---|
| AY0438-L | 32-Segment CMOS LCD Driver |
| AY0438-P | 32-Segment CMOS LCD Driver |
| AY0438-S | 32-Segment CMOS LCD Driver |
| AY0438IL | 32-Segment CMOS LCD Driver |
| AY0438IP | 32-Segment CMOS LCD Driver |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AY0438/L | 功能描述:LCD 驱动器 LCD Driver RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| AY0438/P | 功能描述:LCD 驱动器 LCD Driver RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| AY0438I | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:32-Segment CMOS LCD Driver |
| AY0438-I | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:32-Segment CMOS LCD Driver |
| AY0438-I/L | 功能描述:LCD 驱动器 LCD Driver RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
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