MSC1205 Ver la hoja de datos (PDF) - Oki Electric Industry

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Fabricante

MSC1205

32-Bit Duplex Controller/Driver with Digital Dimming Function

Oki Electric Industry 

¡ Semiconductor

MSC1205

PIN DESCRIPTION

Symbol

DATA

CLOCK

LOAD

SEG1

-SEG32

VDD

GRID1

GRID2

BLANK

OSC

TEST

VSS

Type

I

I

I

O

—

O

O

I

I

I

—

Description

Serial data input pin. This pin receives display data, dimming data, enable bit and mode bit.

Shift clock input pin with Schmitt circuit.

Serial data is clocked in this pin at the rising edge of the shift clock pulse.

Load pulse input pin.

The load signal is input when dimming data and segment data transfer is finished.

Segment driver output pins. These pins provide large current

driving (IOH = –5.5mA at VDD = 12V) and small current

driving (IOH = –1.8mA at VDD = 12V).

Power supply voltage. This pin is connected to a power supply of 8 to 18V.

Grid driver output pin. When this pin is set to "L", the display is turned on. This pin is connected

to external PNP transistor.

The segment data of the first bit (S1) to the 32nd bit (S32) is valid in the segment data of 64

bits.

Grid driver output pin. When this pin is set to "L", the display is turned on. This pin is connected

to external PNP transistor.

The segment data of the 33rd bit (S33) to the 64th bit (S64) is valid in the segment data of 64

bits.

Display blank input pin with a pull-up resistor.

When this pin is set to "L", the display is turned off (SEGn = "L")

Oscillation input pin. This pin is connected to an external capacitor of 82pF. A standard

oscillation frequency is 512kHz.

Test input pin with a pull-down resistor.

Normally this pin should be left open or should be connected to ground.

Ground pin.

This pin is connected to ground (VSS = 0)

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