HT1602 Holtek Semiconductor Inc, HT1602 Datasheet

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HT1602

Manufacturer Part Number
HT1602
Description
40 Dot Matrix LCD Segment Driver
Manufacturer
Holtek Semiconductor Inc
Datasheet
Features
Applications
General Description
The HT1602 is a dot matrix LCD segment
driver LSI implemented in CMOS technology. It
is equipped with a 40-bit shift register (two
20-bit shift registers), a 40-bit latch (two 20-bit
latches), a 40-bit level shifter, a 40-bit 4-level
driver, and control circuits.
The HT1602 can convert serial data received
from an LCD controller to parallel data and
Block Diagram
Operating voltage: 4.5V~5.5V
LCD driving voltage: 8V~16V
Applicable LCD duty cycle from 1/8 to 1/64
Electronic dictionaries
Portable computers
40 Dot Matrix LCD Segment Driver
1
then send them out as LCD driving waveforms
to the LCD panel. The HT1602 can be applied
up to 1/64 duty. Furthermore, the bias voltage
which determines the LCD driving voltage can
be optionally supplied from an external source,
thus the chip is suitable for driving various
types of LCD panel. These special features in-
crease the versatility of the chip.
Suitable for various types of LCD panel
Bias voltage adjustable from an external
source
Remote controllers
Calculators
HT1602
28th Aug ’98

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HT1602 Summary of contents

Page 1

... Remote controllers Calculators then send them out as LCD driving waveforms to the LCD panel. The HT1602 can be applied up to 1/64 duty. Furthermore, the bias voltage which determines the LCD driving voltage can be optionally supplied from an external source, thus the chip is suitable for driving various types of LCD panel ...

Page 2

... X Y Pad No. X –16.61 –76.23 37 75.78 –8.10 –76.23 38 75.78 0.5 –76.23 39 61.20 9.10 –76.23 40 52.56 17.60 –76.23 41 43.65 26.15 –76.23 42 35.10 34.70 –76.23 43 25.20 43.25 –76.23 44 15.71 51.89 –76.23 45 6.66 75.78 –76.23 46 –3.06 75.78 –67.14 47 –12.83 75.78 –56.34 48 –21.60 75.78 –46.62 49 –32.04 75.78 –35.64 50 –42.48 75.78 –24.75 51 –52.92 75.78 –13.32 52 –62.15 75.78 6.03 75.78 33.66 2 HT1602 Unit: mil Y 42.66 61.56 76.23 76.23 76.23 76.23 76.23 76.23 76.23 76.23 76.23 76.23 76.23 76.23 76.23 76.23 28th Aug ’98 ...

Page 3

... Ratings” may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. Description Storage Temperature................. – 125 C +0.3V Operating Temperature............... – HT1602 28th Aug ’98 ...

Page 4

... Test Conditions Min. Typ. V Conditions DD — — 4.5 — load — 100 5V — — — 3.3 — 5V — 125 — 5V — — — 5V — 0.8V — — 8 — 4 HT1602 Ta=25 C Max. Unit 5.5 V 300 — MHz — — 28th Aug ’98 ...

Page 5

... Timing Diagrams 1/64 duty and 1/9 bias (with the ALT changing polarity for every frame, a frame=64 commons) 5 HT1602 28th Aug ’98 ...

Page 6

... Application Circuits 1/32 duty and 1/7 bias 6 HT1602 28th Aug ’98 ...

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