M74HC27 TRIPLE 3-INPUT NOR GATE HIGH SPEED: t = 9ns (TYP.) at V = 6V PD CC LOW POWER DISSIPATION: I = 1A(MAX.) at T =25C CC A HIGH NOISE IMMUNITY: V = V = 28 % V (MIN.) NIH NIL CC DIP SOP TSSOP SYMMETRICAL OUTPUT IMPEDANCE: I = I = 4mA (MIN) OH OL BALANCED PROPAGATION DELAYS: t t PLH PHL ORDER CODES WIDE OPERATING VOLTAGE RANGE: PACKAGE TUBE T & R V (OPR) = 2V to 6V CC DIP M74HC27B1R PIN AND FUNCTION COMPATIBLE WITH SOP M74HC27M1R M74HC27RM13TR 74 SERIES 27 TSSOP M74HC27TTR DESCRIPTION The M74HC27 is an high speed CMOS TRIPLE All inputs are equipped with protection circuits 3-INPUT NOR GATE fabricated with silicon gate against static discharge and transient excess 2 C MOS technology. voltage. The internal circuit is composed of 3 stages including buffer output, which enables high noise immunity and stable output. PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/8 Obsolete Product(s) - Obsolete Product(s)M74HC27 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1, 3, 9 1A to 3A Data Inputs 2, 4, 10 1B to 3B Data Inputs 13, 5, 11 1C to 3C Data Inputs 12, 6, 8 1Y to 3Y Data Outputs 7 GND Ground (0V) 14 V Positive Supply Voltage CC TRUTH TABLE ABC Y LLL H HX X L XHX L XX H L X : Dont Care ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V Supply Voltage -0.5 to +7 V CC V DC Input Voltage -0.5 to V + 0.5 V I CC V DC Output Voltage -0.5 to V + 0.5 V O CC I DC Input Diode Current 20 mA IK I DC Output Diode Current 20 mA OK I DC Output Current 25 mA O I or I DC V or Ground Current 50 mA CC GND CC P Power Dissipation 500(*) mW D T Storage Temperature -65 to +150 C stg T Lead Temperature (10 sec) 300 C L Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied (*) 500mW at 65 C derate to 300mW by 10mW/C from 65C to 85C RECOMMENDED OPERATING CONDITIONS Symbol Parameter Value Unit V Supply Voltage 2 to 6 V CC V Input Voltage 0 to V V I CC V Output Voltage 0 to V V O CC T Operating Temperature -55 to 125 C op Input Rise and Fall Time V = 2.0V 0 to 1000 ns CC t , t V = 4.5V 0 to 500 ns r f CC V = 6.0V 0 to 400 ns CC 2/8 Obsolete Product(s) - Obsolete Product(s)