74ACT257 Datasheet | STMicroelectronics

QUAD 2 CHANNEL MULTIPLEXER (3-STATE) s s s s s s s s s HIGH SPEED: tPD =5 ns (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 8 µA (MAX.) at TA = 25 oC PATIBLE WITH TTL OUTPUTS VIH = 2V (MIN), VIL = 0.8V (MAX) 50Ω TRANSMISSION LINE DRIVING CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24 mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 4.5V to 5.5V PIN AND FUNCTION PATIBLE WITH 74 SERIES 257 IMPROVED LATCH-UP IMMUNITY B M (Plastic Package) (Micro Package) ORDER CODES : 74ACT257B 74ACT257M ENABLE INPUT. The AC257 is a non inverting multiplexer. When the ENABLE INPUT is held ”High” outputs of both IC’s bee high...