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HC257

STMicroelectronics
Part Number HC257
Manufacturer STMicroelectronics
Description QUAD 2 CHANNEL MULTIPLEXER 3-STATE
Published Mar 23, 2005
Detailed Description ® 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...
Datasheet PDF File HC257 PDF File

HC257
HC257

Overview
® 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.
...


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