Part # M74HC221 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: Dual monostable multivibrator

Part Details:

M74HC221 DUAL MONOSTABLE MULTIVIBRATOR s HIGH SPEED : tPD = 24 ns (TYP.) at VCC = 6V s LOW POWER DISSIPATION:STAND BY STATE : ICC=4µA (MAX.) at TA=25°C ACTIVE STATE :ICC=700µA (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 M74HC221B1R PLH tPHL s WIDE OPERATING VOLTAGE RANGE: SOP M74HC221M1R M74HC221RM13TR V TSSOP M74HC221TTR CC (OPR) = 2V to 6V s WIDE OUTPUT PULSE WIDTH RANGE : tWOUT = 150 ns ~ 60 s OVER AT VCC = 4.5 V triggering the output maintains the s PIN AND FUNCTION COMPATIBLE WITH MONOSTABLE STATE for the time period 74 SERIES 221 determined by the external resistor Rx andcapacitor Cx. Taking CLR low breaks this DESCRIPTION MONOSTABLE STATE. If the next trigger pulse The M74HC221 is an high speed CMOS occurs during the MONOSTABLE period it makes MONOSTABLE MULTIVIBRATOR fabricated with the MONOSTABLE period longer. silicon gate C2MOS technology. Limit for values of Cx and Rx : There are two trigger inputs, A INPUT (negative Cx : NO LIMIT edge) and B INPUT (positive edge). Rx : Vcc < 3.0V 5K to 1M

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M74HC221.pdf Datasheet