UPD6325 datasheet(3/16 Pages) NEC

3 / 16 page

µPD6325, µPD6326, µPD6335, µPD6336

PIN CONFIGURATION

Pin No.

Symbol

Pin Name

Function

µPD

11VCC

Interface Power Supply

DATA IN

Serial Data Input

CLOCK

Shift Clock Input

LOAD

Load Pulse Input

DATA OUT

Serial Data Output

VSS

Ground

–7

DA8

Analog Output Channel 8

Analog Output

–9

DA7

Analog Output Channel 7

Analog Output

–10

DA6

Analog Output Channel 6

Analog Output

–11

DA5

Analog Output Channel 5

Analog Output

DA4

Analog Output Channel 4

Analog Output

DA3

Analog Output Channel 3

Analog Output

DA2

Analog Output Channel 2

Analog Output

DA1

Analog Output Channel 1

Analog Output

This pin is used to interface with the control IC

(ex. micro processor). Supply the voltage high

level of the control IC.

Control data input terminal. Data is read in syn-

chronization with the clocks input to the CLOCK

terminal.

Data read clock input terminal. The Data input

to the DATA IN terminal is read at the leading

edge of the clock.

This terminal is used to input Load signals after

inputting serial data. 12 bit data is read after

leading edge of a pulse input to the LOAD terminal.

Serial data output terminal. The final stage data

of 12 bit shift register appeares on this terminal

in synchronization with shift clock.

System ground.

D7 the data of the shift register appears on this

terminal. (Only

µPD6325 and µPD6335)

D6 the data of the shift register appears on this

terminal.

Reference Voltage for D/A converters. Analog

output voltage range is GND to VDD.

VDD

Power Supply

–

OPTION2

Expantion Output Port

OPTION1

Expanttion Output Port

6325

6335

6326

6336

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