UPD4701AC データシートの表示（PDF） - NEC => Renesas Technology

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UPD4701AC

INCREMENTAL ENCODER COUNTER

NEC => Renesas Technology 

µPD4701A

ORDERING INFORMATION

Part Number

µPD4701AC

µPD4701AGT

Package

24-pin plastic DIP (600 mil)

24-pin plastic SOP (375 mil)

BLOCK DIAGRAM

XA

XB

RESET X

RESET Y

YA

YB

Phase

Determination

and

Edge Detection

Phase

Determination

and

Edge Detection

X-Axis Up/Down Counter

CS

X/Y

U/L

Data Multiplexer & Latch

D0-7

Y-Axis Up/Down Counter

Count Flag

Circuit

CF

RIGHT

LEFT

MIDDLE

Button Input

Circuit

DATA MULTIPLEXER/LATCH BLOCK

Switch Flag

SF

Circuit

X-Axis Counter

12-Bit

Latch

X/Y

U/L

STB

8

Y-Axis Counter

12-Bit

Latch

STB

8

Data

8

Multiplexer

4

3-State

Buffer

OE

D0 - 7

Button Input

4-Bit

Latch

STB

CS

To Count Flag Circuit

2

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