Part # M74HC251 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: 8-channel multiplexer (3-state)

Part Details:

M74HC251 8-CHANNEL MULTIPLEXER (3-STATE) s HIGH SPEED : tPD = 17 ns (TYP.) at VCC = 6V s LOW POWER DISSIPATION:ICC =4µA(MAX.) at TA=25°C s HIGH NOISE IMMUNITY:VNIH = VNIL = 28 % VCC (MIN.) s SYMMETRICAL OUTPUT IMPEDANCE: DIP SOP TSSOP |IOH| = IOL = 4mA (MIN) s BALANCED PROPAGATION DELAYS:tPLH tPHL ORDER CODES s WIDE OPERATING VOLTAGE RANGE: PACKAGE TUBE T & R VCC (OPR) = 2V to 6V DIP M74HC251B1R s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 251 SOP M74HC251M1R M74HC251RM13TR TSSOP M74HC251TTR DESCRIPTIONThe M74HC251 is an high speed CMOS in the high impedance state. When enabled, 8-CHANNEL MULTIPLEXER (3-STATE) address information on the data select inputs fabricated with silicon gate C2MOS technology. determines which data input is routed to Y and W. This Multiplexer features both true (Y) and All inputs are equipped with protection circuits complement (W) outputs as well as STROBE against static discharge and transient excess input. When the STROBE is high, both outputs are voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/11 M74HC251 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL

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M74HC251.pdf Datasheet