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

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производитель

LC5738

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

SANYO -> Panasonic 

Pin Description

Pad

Pin

No.

Name

Input/

Output

35 OSC IN

Input

37 OSCOUT

Output

LC5738

Circuit Configuration

Function

Crystal OSC mode.

32.768kHz crystal is connected across OSC IN and OSCOUT for oscillation.

Used as reference clock for timepiece and system clock.

RC OSC mode

R and C are connected across OSCIN and OSCOUT for oscillation.

Used as system clock.

36 10P

–

Connected to OSCOUT and used as OSC phase compensation capacitor.

33 S1

32 S2

3 S3

2 S4

Input

Input-only port.

IC system is reset by applying VDD to S1 to S4 simultaneously.

4 M1

5 M2

6 M3

7 M4

Input

Input-only port.

34 RES

Input

62 BAK

–

57 LIGHT

Output

58 ALM1

Output

59 ALM2

Output

Input pin for resetting IC system.

(–) power supply pin for logic unit inside the IC.

For Li battery version, a capacitor must be connected across BAK and VDD to

prevent logic unit from malfunctioning.

Output-only pin.

Suited for delivering signal to drive transistor for light.

Output-only pin.

In case of selecting melody channel-2, used to deliver melody signal of 3

octaves or *4kHz/2kHz/1kHz modulation signal with SAS or TMEL instructions.

(Also used to deliver non-modulation signal)

Output-only pin.

In case of selecting melody channel-2, used to deliver melody signal of 3

octaves or *4kHz/2kHz/1kHz modulation signal with SAS or TMEL instructions.

(Also used to deliver non-modulation signal)

Continued on next page.

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