MSM9202-01 Ver la hoja de datos (PDF) - Oki Electric Industry

Número de pieza

componentes Descripción

Fabricante

MSM9202-01

5 x 7 Dot Character x 16-Digit Display Controller/Driver with Character RAM

Oki Electric Industry 

¡ Semiconductor

FEDL9202-04

MSM9202-01

PIN DESCRIPTION

Pin

Symbol Type Connects to

QFP SSOP

Description

1 to 31,

61 to 64

5

to

39

SEG1

to

35

O

Fluorescent

tube anode

electrode

Fluorescent display tube anode electrode drive output.

Directly connected to fluorescent display tube and a pull-down

resistor is not necessary. IOH>–6 mA

32 to 47 40 to 55 COM1 to 16 O

Fluorescent

tube grid

electrode

Fluorescent display tube grid electrode drive output.

Directly connected to fluorescent display tube and a pull-down

resistor is not necessary. IOH>–30 mA

59, 60 3, 4 AD1, AD2 O

Fluorescent

tube anode

electrode

Fluorescent display tube anode electrode drive output.

Directly connected to fluorescent display tube and a pull-down

resistor is not necessary. IOH>–15 mA

LED drive General port output.

57, 58 1, 2 P1, P2 O

control Output of these pins in static operation, so these pins can drive

pins

the LED.

56 64

49 57

48 56

VDD

GND

VFL

—

Power

supply

VDD-GND are power supplies for internal logic.

VDD-VFL are power supplies for driving fluorescent tubes.

Apply VFL after VDD is applied.

55 63

DA

I

Micro- Serial data input (positive logic).

controller Input from LSB.

54 62

CP

I

Micro- Shift clock input.

controller Serial data is shifted on the rising edge of CP.

53 61

CS

I

Micro- Chip select input.

controller Serial data transfer is disabled when CS pin is "H" level.

Reset input.

"Low" initializes all the functions.

Initial status is as follows.

• Address of each RAM

address "00"H

• Data of each RAM

Micro- • Display digit

52

60 RESET

I

controller • Contrast adjusment

or

• All lights ON or OFF

C2, R2

• All outputs

Content is undefined

16 digits

8/16

OFF mode

"Low" level

RESET

C2

(Circuit when R and C are

connected externally)

See Application Circuit.

R2

50 58 OSC0 I

51 59 OSC1 O

C1, R1

External RC pin for RC oscillation.

Connect R and C externally. The RC time constant depends on the

VDD voltage used. Set the target oscillation frequency to 2 MHz.

OSC0

R1

OSC1

(RC oscillation circuit)

C1 See Application Circuit.

6/33

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