74VHCT257AM PDF 데이터시트 검색

® 74VHCT257A QUAD 2 CHANNEL MULTIPLEXER (3-STATE) PRELIMINARY DATA s s s s s s s s s s HIGH SPEED: tPD = 5.8 ns (TYP.) at VCC = 5V LOWPOWER DISSIPATION: ICC = 4 A (MAX.) at TA = 25 oC COMPATIBLE WITH TTL OUTPUTS: VIH = 2V (MIN), VIL = 0.8V (MAX) POWER DOWN PROTECTION ON INPUTS & OUTPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 8 mA (MIN) BALANCED PROPAGATION DELAYS: tPLH tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 4.5V to 5.5V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 257 IMPROVED