UPD4704 Datasheet - NEC

UPD4704 EXTENSION 8-BIT UP/DOWN COUNTER CMOS INTEGRATED CIRCUITS

The µPD4704 is 8-bit up/down counters for extension of the µPD4702 incremental encoder counter. They perform an up/down-count using an 8-bit width with a µPD4702 carry or borrow signal as input. In addition, a carry output and borrow output are also provided for further extension of the count width,.

UPD4704 Features

* 8-bit up/down counter for extension of µPD4702

* Count data output controllable (latch and 3-state output)

* Extension carry and borrow outputs

* CMOS, single +5 V power supply PIN NAMES Up Down Reset STB OE CD0-7 Carry : Up-count input : Down-count input : Counter

UPD4704_NEC.pdf