MSM63184B-XXX 데이터 시트보기 (PDF) - Oki Electric Industry

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MSM63184B-XXX

4-Bit Microcontroller with Built-in 640-Dot Matrix LCD Drivers, Operating at 0.9 V (Min.)

Oki Electric Industry 

¡ Semiconductor

MSM63184B

PIN DESCRIPTIONS

The basic functions of each pin of the MSM63184B are described in Table 1.

A symbol with a slash (/) denotes a pin that has a secondary function.

Refer to Table 2 for secondary functions.

For type, "—" denotes a power supply pin, "I" an input pin, "O" an output pin, and "I/O" an input-

output pin.

Table 1 Pin Descriptions (Basic Functions)

Function Symbol Pin

VDD

52

VSS

40

VDD1

41

VDD2

42

VDD3

43

VDD4

44

VDD5

45

C1

46

Power

C2

47

Supply

VDDI

110

VDDL

53

VDDH

48

CB1

49

CB2

50

XT0

58

XT1

57

Oscillation

OSC0

55

OSC1

54

TST1

60

Test

TST2

59

Reset RESET

56

BD

108

Buzzer

BDB

109

Type

—

—

—

Description

Positive power supply

Negative power supply

Power supply pins for LCD bias (internally generated).

Capacitors (0.1 mF) should be connected between these pins and

VSS.

— Capacitor connection pins for LCD bias generation.

— A capacitor (0.1 mF) should be connected between C1 and C2.

Positive power supply pin for external interface

—

(power supply for input, output, and input-output ports)

Positive power supply pin for internal logic (internally generated).

—

A capacitor (0.1 mF) should be connected between this pin and VSS.

Voltage multiplier pin for power supply backup (internally generated)

—

A capacitor (1.0 mF) should be connected between this pin and VSS.

— Pins to connect a capacitor for voltage multiplier.

— A capacitor (1.0 mF) should be connected between CB1 and CB2.

I

Low-speed clock oscillation pins.

A 32.768 kHz crystal should be connected between XT0 and XT1,

O

and CG (5 to 25 pF) should be connected between XT0 and VSS.

I

High-speed clock oscillation pins.

A ceramic resonator and capacitors (CL0, CL1) or external

O

oscillation resistor (ROS) should be connected to these pins.

I

Input pins for testing.

A pull-down resistor is internally connected to these pins.

I

The user cannot use these pins.

Reset input pin.

Setting this pin to "H" level puts this device into a reset state.

I Then, setting this pin to "L" level starts executing an instruction

from address 0000H.

A pull-down resistor is internally connected to this pin.

O Buzzer output pin (non-inverted output)

O Buzzer output pin (inverted output)

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