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 phas...