UPD4702G-A

更新时间： 2024-11-13 13:15:15

品牌	Logo	应用领域
日电电子 - NEC		计数器编码器
页数	文件大小	规格书
16页	168K
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数据手册

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UPD4702G-A 数据手册

DATA SHEET

MOS INTEGRATED CIRCUIT

µPD4702

INCREMENTAL ENCODER 8-BIT UP/DOWN COUNTER

CMOS INTEGRATED CIRCUITS

DESCRIPTION

The µPD4702 is 8-bit up/down counters for an incremental encoder. Two-phase (A, B) incremental input signals

are phase-differentiated, and on each signal edge, an up-count is executed if the A phase is leading, or a down-count

if the B phase is leading. Eight-bit count data is output in real time. A carry output and borrow output are also

provided for counter overflow and underflow.

The µPD4704 is also available; use of these enables the count width to be extended.

PIN CONFIGURATION (Top View)

FEATURES

•

Incremental inputs (A, B)

On-chipphasediscriminationcircuit(up-countmode

when the phase order is A → B, down-count mode

when B → A) 4-multiplication count method

On-chip edge detection circuit

Reset

Carry

Borrow

STB

•

8-bit up/down counter latch output o Carry output,

borrow output

•

Count data output controllable (3-state output)

CMOS, single +5 V power supply

ORDERING INFORMATION

VSS

Part Number

Package

µPD4702C

µPD4702G

20-pin plastic DIP

(300 mil)

20-pin plastic SOP

PIN NAMES

2-phase incremental signal inputs

Reset : Counter reset input

STB

: Latch strobe signal input

: Output control signal input

: Count data outputs

CD^0-7

Carry : Carry pulse output

Borrow : Borrow pulse output

Document No. IC-3304A (2nd edition)

(O. D. No. IC-5403A)

Date Published April 1997 P

Printed in Japan

1993

1994

12 3 4 5 6 7...16

中文翻译

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