DM74S157
Description
These data selectors/multiplexers contain inverters and drivers to supply full on-chip data selection to the four output gates. A separate strobe input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. The DM74S157 presents true data whereas the DM74S158 presents inverted data to minimize propagation delay time.
Applications
- Expand any data input point
- Multiplex dual data buses
- Generate four functions of two variables (one variable is mon)
- Source programmable counters
Features s Buffered inputs and outputs s Typical propagation time
DM74S157 5 ns DM74S158 4 ns s Typical power dissipation DM74S157 250 m W DM74S158 195 m W
Ordering Code:
Order Number DM74S157N DM74S158N
Package Number
Package Description
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Connection Diagrams
DM74S158
© 2000 Fairchild...
