Part # M74HC157 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: Quad 2 channel multiplexer

Part Details:

M74HC157 QUAD 2 CHANNEL MULTIPLEXER s HIGH SPEED: tPD = 10ns (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 M74HC157B1R s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 157 SOP M74HC157M1R M74HC157RM13TR TSSOP M74HC157TTR DESCRIPTIONThe M74HC157 is an high speed CMOS QUAD 2 The SELECT decoding determines whether the A CHANNEL MULTIPLEXER fabricated with silicon or B inputs get routed to their corresponding Y gate C2MOS technology. outputs. These device consist of four 2-input digital All inputs are equipped with protection circuits multiplexer with common select and strobe inputs. against static discharge and transient excess When the STROBE input is held high, selection of voltage. data is inhibited and all the outputs become low. PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/9 M74HC157 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No

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M74HC157.pdf Datasheet