Part # M74HC123 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: Dual retriggerable monostable multivibrator

Part Details:

M74HC123 DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR s HIGH SPEED : tPD = 23 ns (TYP.) at VCC = 6V s LOW POWER DISSIPATION:STAND BY STATE : ICC=4µA (MAX.) at TA=25°C ACTIVE STATE :ICC=200µA (MAX.) at VCC = 5V DIP SOP TSSOP s HIGH NOISE IMMUNITY:VNIH = VNIL = 28 % VCC (MIN.) s SYMMETRICAL OUTPUT IMPEDANCE: ORDER CODES |IOH| = IOL = 4mA (MIN) PACKAGE TUBE T & R s BALANCED PROPAGATION DELAYS:t DIP M74HC123B1R PLH tPHL s WIDE OPERATING VOLTAGE RANGE: SOP M74HC123M1R M74HC123RM13TR V TSSOP M74HC123TTR CC (OPR) = 2V to 6V s WIDE OUTPUT PULSE WIDTH RANGE : tWOUT = 120 ns ~ 60 s OVER AT VCC = 4.5 V period determined by the external resistor Rx and s PIN AND FUNCTION COMPATIBLE WITH capacitor Cx. When Cx > 10nF and Rx > 10K, 74 SERIES 123 the output pulse width value is approsimativelygiven by the formula : tW(OUT) = K · Cx · Rx. DESCRIPTION (K 0.45). The M74HC123 is an high speed CMOS Taking CLR low breaks this MONOSTABLE MONOSTABLE MULTIVIBRATOR fabricated with STATE. If the next trigger pulse occurs during the silicon gate C2MOS technology. MONOSTABLE period it makes the There are two trigger inputs, A INPUT (negative MONOSTABLE period longer. Limit for values of edge) and B INPUT (positive edge). These inputs Cx and Rx : Cx : NO LIMIT

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M74HC123.pdf Datasheet