HD74HC677 Datasheet - Hitachi Semiconductor

HD74HC677 16-bit Address Comparator

The HD74HC677 address comparator simplifies addressing of memory boards and/or other peripheral devices. The four P inputs are normally hard wired with a preprogrammed address. An internal decoder determines what input infomation applied to the 16 A inputs must be low or high to cause a low state at.

HD74HC677 Features

* an enable input (G). When G is low, the device is enabled. When G is high, the device is disabled and the output is high regardless of the A and P inputs. Features

* High Speed Operation: tpd (A to Y) = 17 ns typ (CL = 50 pF) High Output Current: Fano

HD74HC677_HitachiSemiconductor.pdf