UPD16680 datasheet(8/44 Pages) NEC

No de pièce	UPD16680

Description	1/53, 1/40 DUTY, LCD CONTROLLER/DRIVER WITH BUILT-IN RAM

PDF	44 Pages

Scroll/Zoom	100%

Fabricant	NEC [NEC]

Site Internet	http://www.nec.com/

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8 / 44 page

Data Sheet S12694EJ2V0DS00

µµµµPD16680

3.2 Logic System Pins (2/2)

Pin Symbol

Pin Name

Pin No.

I/O

Function Description

AMPCHA

Amp mode select pin

Select operational amplifier mode.

At High level, “Level capacitor mode”.

At Low level, “LCD driving mode”.

VEXT

LCD reference supply

switching

Select the method for supplying LCD power circuit. At High

level, LCD driving voltage is supplied external circuit. At Low

level, it is supplied internal circuit.

OSCIN

OSCOUT

Oscillation pin

These pins are connected with the 1 M

Ω resistor. When using

external oscillation, input into the OSCIN , and leaving the

OSCOUT open.

OSCBRI

Blinking Clock

This pin is oscillation input for Blinking. To input 2 Hz external

clock, when to use Blinking by external clock mode.

When not to use this pin, keep it H or L.

UPD16680 Fiches technique(PDF) 8 Page - NEC