ay0438 Microchip Technology Inc., ay0438 Datasheet
ay0438
Manufacturer Part Number
ay0438
Description
32-segment Cmos Lcd Driver
Manufacturer
Microchip Technology Inc.
Datasheet
1.AY0438.pdf
(11 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ay0438-1/L
Manufacturer:
MICOCH
Quantity:
775
Part Number:
ay0438-1/P
Manufacturer:
MIC
Quantity:
20 000
Company:
Part Number:
ay0438-I/L
Manufacturer:
Microchip Technology
Quantity:
1 987
Company:
Part Number:
ay0438-I/L
Manufacturer:
INTERSIL
Quantity:
6 231
Company:
Part Number:
ay0438-I/L
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
ay0438-I/L
Manufacturer:
MICROCHI
Quantity:
20 000
Part Number:
ay0438-I/L001
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Part Number:
ay0438-I/P001
Manufacturer:
MIC
Quantity:
20 000
Company:
Part Number:
ay0438/L
Manufacturer:
Microchip Technology
Quantity:
10 000
Company:
Part Number:
ay0438T-I/L
Manufacturer:
Microchip Technology
Quantity:
10 000
FEATURES
• Drives up to 32 LCD segments of arbitrary config-
• CMOS process for: wide supply voltage 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.
uration
low- power operation, high-noise immunity, wide
temperature range
1995 Microchip Technology Inc.
32-Segment CMOS LCD Driver
PIN CONFIGURATION
SEG 29
SEG 28
SEG 27
SEG 26
SEG 25
SEG 24
SEG 23
SEG 22
SEG 21
SEG 20
SEG 19
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
44 PLCC
40-Lead Dual In-line
LOAD
V
DD
10
11
12
13
14
15
16
17
7
8
9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
AY0438
AY0438
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
39
38
37
36
35
34
33
32
31
30
29
DS70010I-page 1
CLOCK
SEG 1
SEG 2
SEG 3
V
DATA OUT
DATA IN
SEG 4
SEG 5
LCD
BP
SEG 6
SEG 7
SEG 8
SEG 9
SEG 10
SEG 11
SEG 12
SEG 13
SEG 14
SS
NC
DATA OUT
DATA IN
SEG 4
SEG 5
LCD
BP
SEG 6
SEG 7
SEG 8
NC
Related parts for ay0438
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet: