LC5738 Просмотр технического описания (PDF) - SANYO -> Panasonic

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Компоненты Описание

производитель

LC5738

4-Bit Single Chip Microcontroller with LCD Drivers for Low-Voltage, Low Power Use

SANYO -> Panasonic 

Continued from preceding page.

Pad

Pin

No.

Name

1

VDD

Input/

Output

–

LC5738

Circuit Configuration

Function

(+) power supply pin.

(–) power supply pin.

Mask option selectable : Ag battery/Li battery EXT-V version.

Also used as power supply for LCD drive.

The following Table shows how to connect external parts in each case.

61 VSS1

60 VSS2

–

30 CUP1

31 CUP2

–

27 COM1

39 COM2

56 COM3

10 COM4

Output

Pins for connecting voltage step-up (step-down) capacitor.

Output pins for LCD pannel common plate.

The following pins is used in each case.

Duty mode Static 1/2 1/3 1/4

COM1

COM2

COM3

COM4

Alternating

°–

–

–

64Hz

°° °° °° –

° ° – –

° 32Hz 43Hz 32Hz

frequency

11 to 26

40 to 55

SEG17 to

SEG32

SEG1 to

SEG16

Output

Output pins for LCD pannel segments.

Mask option permits SEG17 to SEG32 (pad No. 11 to 26) to be used as output

ports.

29 32Hz

28 T3

8 TEST

Test

9 TEST

38 TEST

Test pins (not used by user)

Note) For Ag battery power supply, is connected to VSS1 ; for Li battery/EXT-V power supply, connected to VSS2.

* 4kHz/2kHz/1kHz : For 32.768kHz crystal OSC application, proportional to OSC frequency.

No.3540–6/12

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