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AY0438-I

更新时间： 2024-11-15 12:52:19
品牌 Logo 应用领域
美国微芯 - MICROCHIP 驱动器
页数 文件大小 规格书
11页 154K
描述
32-Segment CMOS LCD Driver

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中文翻译

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AY0438-I 数据手册

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AY0438  
32-Segment CMOS LCD Driver  
FEATURES  
PIN CONFIGURATION  
40-Lead Dual In-line  
• Drives up to 32 LCD segments of arbitrary config-  
uration  
VDD  
LOAD  
1
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
CLOCK  
SEG 1  
SEG 2  
SEG 3  
VSS  
• CMOS process for: wide supply voltage range,  
low- power operation, high-noise immunity, wide  
temperature range  
2
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  
3
4
5
• CMOS and TTL-compatible inputs  
• Electrostatic discharge protection on all pins  
• Cascadable  
6
DATA OUT  
DATA IN  
SEG 4  
SEG 5  
LCDΦ  
7
8
9
• On-chip oscillator  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
• Requires only three control lines  
BP  
SEG 6  
SEG 7  
SEG 8  
SEG 9  
SEG 10  
SEG 11  
SEG 12  
SEG 13  
SEG 14  
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.  
44 PLCC  
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.  
SEG 29  
NC  
DATA OUT  
7
8
9
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
SEG 28  
SEG 27  
SEG 26  
SEG 25  
SEG 24  
SEG 23  
SEG 22  
SEG 21  
SEG 20  
SEG 19  
DATA IN  
SEG 4  
SEG 5  
LCDΦ  
BP  
SEG 6  
SEG 7  
SEG 8  
NC  
10  
11  
12  
13  
14  
15  
16  
17  
AY0438  
The AY0438 is available in 40-lead dual in-line plastic  
and 44-lead PLCC packages. Unpackaged dice are  
also available.  
1995 Microchip Technology Inc.  
DS70010I-page 1  
1234567...11

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与AY0438-I相关器件

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AY0438-I/D MICROCHIP

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 		LIQUID CRYSTAL DISPLAY DRIVER, CDIP40, 0.600 INCH, SIDE BRAZED, CERAMIC, DIP-40
AY0438I/J VISHAY

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 		Interface Circuit, CMOS, CDIP40
AY0438I/L VISHAY

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 		Interface Circuit, CMOS, PQCC44
AY0438-I/L MICROCHIP

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 		LIQUID CRYSTAL DISPLAY DRIVER, PQCC44, PLASTIC, LCC-44
AY0438-I/LD61 MICROCHIP

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 		LIQUID CRYSTAL DISPLAY DRIVER, PQCC44, PLASTIC, LCC-44
AY0438I/P VISHAY

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 		Interface Circuit, CMOS, PDIP40
AY0438-I/P MICROCHIP

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 		LIQUID CRYSTAL DISPLAY DRIVER, PDIP40, PLASTIC, DIP-40
AY0438-I/P003 MICROCHIP

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 		LIQUID CRYSTAL DISPLAY DRIVER, PDIP40, PLASTIC, DIP-40
AY0438-I/P011 MICROCHIP

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 		LIQUID CRYSTAL DISPLAY DRIVER, PDIP40, PLASTIC, DIP-40
AY0438-I/S MICROCHIP

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 		LIQUID CRYSTAL DISPLAY DRIVER, UUC40, DIE

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