UPD16435N-001-002 datasheet(5/36 Pages) NEC

Part #	UPD16435N-001-002

Description	DOT MATRIX LCD CONTROLLER/DRIVER

Download	36 Pages

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Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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5 / 36 page

µPD16435, 16435A

5

Pin Name

Pin No.

V1

221

220

V2 to V5

to

217

VIN(–)

224

VIN(+)

223

VCC, GND1

232, 256

VDD, GND2

257, 222

3/5

236

C1

±, C2±,

230 to

C3

±

225

Description

LCD drive power supply pin

Internal OP-amp output

LCD drive power supply pins

Can be adjusted by addition of external resistor.

Liquid crystal drive power supply OP-amp input pins

Logic power supply, GND

Liquid crystal drive (step-up) power supply, GND

Drive voltage selection pin

“1”

→ VDD = 3 V (×4 step-up circuit selected)

“0”

→ VDD = 5 V (×2 step-up circuit selected)

A 1

µF tantalum or ceramic capacitor should be connected

externally.

Input/Output

Output

Input

–––

Input

–––

Output Type

–––

REFERENCE CLOCK

Product Name

Reference Clock

µPD16435

External input

µPD16435A

On-chip oscillation circuit (External crystal resonator)

OSC CIRCUIT (

µPD16435A)

OSC2

OSC1

4.19 MHz

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UPD16435N-001-002 Datasheet(PDF) 5 Page - NEC

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