74HCT5555D,118 NXP

INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications The IC06 74HC/HCT/HCU/HCMOS Logic Package Information The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines 74HC/HCT5555 Programmable delay timer with oscillator September 1993 Product specication File under Integrated Circuits, IC06Philips Semiconductors Product specication Programmable delay timer with oscillator 74HC/HCT5555 FEATURES GENERAL DESCRIPTION retriggerable/non-retriggerable monostable Positive and negative edge The 74HC/HCT5555 are high-speed automatic power-ON reset triggered Si-gate CMOS devices and are pin compatible with low power Schottky output control logic Retriggerable or non-retriggerable TTL (LSTTL). They are specified in oscillator control logic Programmable delay compliance with JEDEC standard overriding asynchronous master minimum: 100 ns no. 7A. reset (MR). maximum: depends on input The 74HC/HCT5555 are precision frequency and division ratio programmable delay timers which 24 Divide-by range of 2 to 2 consist of: Direct reset terminates output 24-stage binary counter pulse integrated oscillator (using external Very low power consumption in timing components) triggered start mode 3 oscillator operating modes: QUICK REFERENCE DATA RC oscillator GND = 0 V; T = 25 C; t = t = 6 ns. amb r f Crystal oscillator SYMBOL PARAMETER CONDITIONS TYP. UNIT External oscillator t /t propagation delay C = 15 pF; Device is unaffected by variations PHL PLH L V = 5 V in temperature and V when using CC A, B to Q/Q2424ns CC an external oscillator MR to Q/Q1920ns Automatic power-ON reset RS to Q/Q2628ns Schmitt trigger action on both C input capacitance 3.5 3.5 pF I trigger inputs C power dissipation notes 1 and 2 23 36 pF PD Direct drive for a power transistor capacitance per buffer Low power consumption in active Notes mode with respect to TTL type 1. C is used to determine the dynamic power dissipation (P in W): timers PD D 2 2 P = C x V x f + (C x V x f ) where: High precision due to digital timing D PD CC i L CC o f = input frequency in MHz Output capability: 20 mA i f = output frequency in MHz I category: MSI. o CC 2 (C x V x f ) = sum of outputs. L CC o C = output load capacitance in pF APPLICATIONS L V = supply voltage in V CC Motor control 2. For HC the condition is V = GND to V I CC Attic fan timers For HCT the condition is V = GND to V - 1.5 V. I CC Delay circuits Automotive applications ORDERING INFORMATION Precision timing PACKAGE Domestic appliances. EXTENDED TYPE NUMBER PINS PIN POSITION MATERIAL CODE 74HC/HCT5555N 16 DIL plastic SOT38Z 74HC/HCT5555D 16 SO16 plastic SOT109A September 1993 2