| Part Number | HD74HC149 Datasheet |
|---|---|
| Manufacturer | Hitachi Semiconductor |
| Overview |
The HD74HC149 is priority encoder which has 8 input lines (0 - 7) and 8 output lies (Y0 - Y7). It is the logical combination of a HD74HC148 8-3 line priority encoder driving a HD74HC138 3-8 line decod.
* * * * * High Speed Operation: tpd (0 - 7 to Y) = 16 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) HD74HC149 Function Table Inputs 0 X H X X X X . |
HD74HC149 Datasheet and Specifications PDF
The HD74HC149 is a 8-to-8-line Priority Encoder.
| Part Number | HD74HC149 Datasheet |
|---|---|
| Description | 8-to-8-line Priority Encoder |
| Manufacturer | Renesas |
| Overview |
The HD74HC149 is priority encoder which has 8 input lines (0 - 7) and 8 output lies (Y0 - Y7).
It is the logical combination of a HD74HC148 8-3 line priority encoder driving a HD74HC138 3-8 line decod.
* High Speed Operation: tpd (0 - 7 to Y) = 16 ns typ (CL = 50 pF) * High Output Current: Fanout of 10 LSTTL Loads * Wide Operating Voltage: VCC = 2 to 6 V * Low Input Current: 1 µA max * Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) * Ordering Information Part Name Package Typ. |