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74VHC257 - QUAD 2 CHANNEL MULTIPLEXER

General Description

The 74VHC257 is an advanced high-speed CMOS QUAD 2 CHANNEL MULTIPLEXER (3-STATE) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology.

It is composed of four independent 2 channel multiplexers with common SELECT and ENABLE INPUT.

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More Datasheets from STMicroelectronics

Part Number Description
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74VHC27 TRIPLE 3-INPUT NOR GATE
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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® 74VHC257 QUAD 2 CHANNEL MULTIPLEXER (3-STATE) s s s s s s s s s s HIGH SPEED: tPD = 3.7 ns (TYP.) at VCC = 5V LOWPOWER DISSIPATION: ICC = 4 µA (MAX.) at TA = 25 oC HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.) POWER DOWN PROTECTION ON INPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 8 mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 5.5V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 257 IMPROVED LATCH-UP IMMUNITY LOWNOISE VOLP = 0.8V (Max.) M (Micro Package) T (TSSOP Package) ORDER CODES : 74VHC257M 74VHC257T The 74VHC257 is a non inverting multiplexer. When the ENABLE INPUT is held ”High”, all outputs become high impedance state.