UPD16432BGC-001-9EU Ver la hoja de datos (PDF) - NEC => Renesas Technology

Número de pieza

componentes Descripción

Fabricante

UPD16432BGC-001-9EU

1/8, 1/15 DUTY LCD CONTROLLER/DRIVER

NEC => Renesas Technology 

µPD16432B

COMMANDS

Commands set the display mode and status.

The first byte after a rise edge on the STB pin is regarded as a command.

If STB is driven low during command/data transfer, serial communication is initialized and the command/data being

transferred is invalidated. (However, a command or data that has already been transferred is valid.)

(1) Display Setting Command

This command initializes the µPD16432BNote, and sets the duty, number of segments, number of commons, master/

slave operation, and the drive voltage supply method.

The state set when this command is executed is: LCD off, LED on, key scanning stopped. To restart the display,

it is necessary to execute “status command” normal operation. However, nothing is done if the same mode is

selected.

MSB

LSB

0 0 × × × b2 b1 b0

× : Don’t Care

After powering on

×××0 0 0

Duty setting

0: 1/8 duty (SEG61/COM14 to SEG65/COM10 → segment outputs)

1: 1/15 duty (SEG61/COM14 to SEG65/COM10 → common outputs)

Master/slave setting

0: Master

1: Slave

Drive voltage supply method selection

0: External

1: Internal

Note When multiple chips are used, only the chip that sent the command is enabled. If initialization is

performed during display, the display may be affected (especially when multiple chips are used).

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