MSC7171 Ver la hoja de datos (PDF) - Oki Electric Industry

Número de pieza

componentes Descripción

Fabricante

MSC7171

12-Bit Grid Driver

Oki Electric Industry 

¡ Semiconductor

MSC7171

FUNCTIONAL DESCRIPTION

Function Table

Shift register

Input

CLOCK

DATA

X

L

H

PO1

L

H

Shift Register Parallel Out

PO2

...

PO11

No Change

PO1n

...

PO10n

PO1n

...

PO10n

X: Don't Care

PO1n to PO11n: Data of PO1 to PO11 just before the CLOCK rises

PO12

PO11n

PO11n

Driver output

Input

STANDBY

H

L

L

L

X: Don't Care

m: 1 to 12

DUTY

X

L

H

Shift Register

Parallel Out

POm

X

X

L

H

Driver Output

DRIDm

L

L

L

H

Operating Mode

Low Current Mode

Normal Mode

Normal Mode

Normal Mode

NOTES ON USE

The contents of the shift register are undefined after power is turned on. Because of this,

immediately after power is turned on, some drivers may go "H" to cause the VF display to flicker.

To avoid this, first turn on the logic power while holding the STANDBY pin at "H", then turn on

the driver power.

After this, set the STANDBY pin to "L" and input data from the DATA pin, then set the DUTY

pin to "H" to start for display.

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