PinoutSpecificationsSupply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 VInput voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
SN54ALS12A: PinoutSpecificationsSupply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 VInput voltage . ....
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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...

SN54ALS12A contains three independent 3-input NAND gates with open-collector outputs. These gates perform the Boolean functions Y = A•B•C or Y = A+B+C in positive logic. The open-collector outputs require pullup resistors to perform correctly. SN54ALS12A may be connected to other open-collector outputs to implement active-low wired-OR or active-high wired-AND functions. Open-collector devices are often used to generate higher VOH levels.
The SN54ALS12A is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74ALS12A is characterized for operation from 0°C to 70°C.