Holtek Semiconductor Inc HT1602L Datasheet
40 Dot Matrix LCD Segment Driver
Features
•
Operating voltage: 2.7V ~5.5V
•
LCD driving voltage: 3.0V~5.2V
•
Applicable LCD duty from 1/8 to 1/16
Applic ations
•
Interface with HT163A
•
Electronic dictionaries
•
Portable computers
General Description
The HT1602L is a dot matrix LCD segment
driver LSI implemented in CMOS technology.
The chip contain s 40-bit shift regi ster (two 20 bit shift registers), 40-bit latch (two 20-bit
latches), 40-bit level shifter, 40-bit 4-level
driver and control circuits.
The HT1602 L can conve rt serial d ata received
from an LCD control ler parall el data and the n
HT1602L
•
Suitable for various types of LCD panel
•
Bias voltage adjustable from an external
source
•
Remote controllers
•
Calculators
send them out as LCD driving waveforms to the
LCD panel. The chip is applicable up to 1/16
duty. Furthermore, the bias voltage which de termines the LCD driving voltage can be optionally supplied from an external s ource, thu s th e
chip is suitable for drivi ng various LCD p anel.
These specia l features increase the versa tility
of the chip.
Block Diagram
1 27th Aug ’98
Pad Assignment
HT1602L
Chip size: 87 × 74 (mil)
* The IC substrate should be connected to VSS in the PCB layout artwork.
2
Pad Coordinates Unit: µm
Pad No. X Y Pad No. X Y
1 –975.00 780.00 28 975.00 –713.00
2 –975.00 650.00 29 975.00 –583.00
3 –975.00 520.00 30 942.50 –435.50
4 –975.00 390.00 31 942.50 –305.50
5 –975.00 260.00 32 942.50 –175.50
6 –975.00 130.00 33 975.00 –45.50
7 –975.00 0.00 34 923.50 84.50
8 –975.00 –130.00 35 975.00 239.00
9 –975.00 –260.00 36 975.00 369.00
10 –975.00 –390.00 37 975.00 499.00
11 –975.00 –520.00 38 975.00 629.00
12 –975.00 –650.00 39 975.00 780.00
13 –975.00 –780.00 40 845.00 780.00
14 –845.00 –780.00 41 715.00 780.00
15 –715.00 –780.00 42 585.00 780.00
16 –585.00 –780.00 43 455.00 780.00
2 27th Aug ’98
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