HT1602 Просмотр технического описания (PDF) - Holtek Semiconductor

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производитель

HT1602

40 Dot Matrix LCD Segment Driver

Holtek Semiconductor 

HT1602

Pad Description

Pad No.

1~26

27

28

29

30

31, 32

33

34

35

36

37

38

39~52

Pad Name

Y14~Y39

DO39

DI20

DO19

VEE

V3, V2

VSS

VDD

CLK

DI0

LOAD

ALT

Y0~Y13

I/O

Description

O LCD driver outputs for segments*

O Shift register output for the 40th bit data

I Input data of shift register 2

O Shift register output for the 20th bit data

I LCD power supply

I LCD bias supply voltage

— Negative power supply

— Positive power supply

I Clock pulse input for the shift register

I Input data of shift register 1

I Latching signal to latch shift register data

I Alternate input signal for LCD driving waveforms

O LCD driver outputs for segments*

*: For Y0~Y39, any of VDD, V2, V3 or VEE can be selected as a display driving source according

to the combination of latched data level and ALT signal. Refer to the following table:

Latched Data ALT Display Data Output Level

H

H

L

VEE

VDD

H

V3

L

L

V2

Absolute Maximum Ratings*

Supply Voltage ................................. –0.3V to 6V

Input Voltage................. VSS–0.3V to VDD+0.3V

Storage Temperature................. –50°C to 125°C

Operating Temperature............... –20°C to 70°C

*Note: These are stress ratings only. Stresses exceeding the range specified under “Absolute Maxi-

mum 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.

3

28th Aug ’98

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