HD74HC677 Description
The HD74HC677 address parator 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 the output (Y).
HD74HC677 Key Features
- High Speed Operation: tpd (A to Y) = 17 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating
- 0.5 1.35 1.8
- 0.5 1.5 3.15 4.2
- 1.9 4.4 5.9 4.13 5.63
- Output voltage
- 4.4 4.5
- 5.9 6.0
- Input current Quiescent supp