Features: • Buffered Inputs and Outputs• Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPsPinoutSpecificationsSupply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
SN54ALS158: Features: • Buffered Inputs and Outputs• Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPsPino...
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Features: PinoutSpecificationsDescriptionThe SN54/74LS147 and SN54/74LS148 are Priority Encoders. ...
PinoutDescriptionThe LS155 and LS156 are Dual 1-of-4 Decoder/Demultiplexers with common Address in...

These data selectors/multiplexers contain inverters and drivers to supply full data selection to the four output gates. A separate strobe (G) input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. The 4ALS157A and SN74AS157 present true data. The 4ALS158 and SN74AS158 present inverted data to minimize propagation delay time.
The SN54ALS157A and SN54ALS158 are characterized for operation over the full military temperature range of 55°C to 125°C. The SN74ALS157A, SN74ALS158, SN74AS157, and SN74AS158 are characterized for operation from 0°C to 70°C.