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UPD4702

NEC
Part Number UPD4702
Manufacturer NEC
Description INCREMENTAL ENCODER 8-BIT UP/DOWN COUNTER CMOS INTEGRATED CIRCUITS
Published Apr 17, 2005
Detailed Description DATA SHEET MOS INTEGRATED CIRCUIT µPD4702 INCREMENTAL ENCODER 8-BIT UP/DOWN COUNTER CMOS INTEGRATED CIRCUITS DESCRIP...
Datasheet PDF File UPD4702 PDF File

UPD4702
UPD4702

Overview
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.
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 CONFIGURATION (Top View) Reset A B N...


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