UPD4702 Datasheet PDF - NEC INCREMENTAL ENCODER 8-BIT UP/DOWN COUNTER CMOS INTEGRATED CIRCUITS Specs

UPD4702 - INCREMENTAL ENCODER 8-BIT UP/DOWN COUNTER CMOS INTEGRATED CIRCUITS

Datasheet Summary

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.

Features

Incremental inputs (A, B).
On-chip phase discrimination circuit (up-count mode when the phase order is A → B, down-count mode when B → A) 4-multiplication count method.
On-chip edge detection circuit.
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 PIN.

Datasheet Details

Part number	UPD4702
Manufacturer	NEC
File Size	167.44 KB
Description	INCREMENTAL ENCODER 8-BIT UP/DOWN COUNTER CMOS INTEGRATED CIRCUITS
Datasheet	UPD4702 Datasheet
Additional preview pages of the UPD4702 datasheet.

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Full PDF Text Transcription

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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.

Published: Apr 17, 2005 |