Part # M74HC298 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: Quad 2 channel multiplexer/register


Part Details:

M74HC298 QUAD 2 CHANNEL MULTIPLEXER/REGISTER s HIGH SPEED: fMAX = 79 MHz (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 M74HC298B1R s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 298 SOP M74HC298M1R M74HC298RM13TR TSSOP M74HC298TTR DESCRIPTIONThe M74HC298 is an high speed CMOS QUAD 2 WORD SELECT is high Word 2 (A2, B2, C2 and CHANNEL MULTIPLEXER/REGISTER fabricated D2) is presented to the inputs of the flip-flops. The with silicon gate C2MOS technology. select word is clocked to the output terminals on These circuits are controlled by the signals WORD the negative edge of the clock pulse. SELECT and CLOCK. When the WORD SELECT All inputs are equipped with protection circuits input is taken low Word 1 (A1, B1, C1 and D1) is against static discharge and transient excess presented to the input of the flip-flops, and when voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/11 M74HC298 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION


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M74HC298.pdf Datasheet