MC74F40 DUAL 4-INPUT NAND BUFFER DUAL 4-INPUT NAND BUFFER VCC 14 A B N/C C D Y 13 12 11 10 9 8 FAST SCHOTTKY TTL J SUFFIX CERAMIC CASE 632-08 1 2 3 4 5 6 7 A B N/C C D Y GND 14 1 N SUFFIX PLASTIC CASE 646-06 14 1 14 1 D SUFFIX SOIC CASE 751A-02 ORDERING INFORMATION MC74FXXJ MC74FXXN MC74FXXD Ceramic Plastic SOIC GUARANTEED OPERATING RANGES Symbol Parameter Min Typ Max Unit VCC Supply Voltage 74 4.5 5.0 5.5 V TA Operating Ambient Temperature Range 74 0 25 70 °C IOH Output Current — High 74 –15 mA IOL Output Current — Low 74 64 mA FAST AND LS TTL DATA 4-27 MC74F40 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Parameter VIH Input HIGH Voltage VIL Input LOW Voltage VIK Input Clamp Diode Voltage Min Typ Max Unit 2.0 VOH Output HIGH Voltage Test Conditions V Guaranteed Input HIGH Voltage 0.8 V Guaranteed Input LOW Voltage –1.2 V VCC = MIN, IIN = –18 mA 74 2.0 V IOH = –15 mA 74 2.4 V IOH = –1.0 mA 74 2.7 V IOH = –1.0 mA VCC = 4.75 V VCC = MIN VCC = 4.50 V VOL Output LOW Voltage 0.55 V IOL = 64 mA IIH Input HIGH Current 20 µA VCC = MAX, VIN = 2.7 V 0.1 mA VCC = MAX, VIN = 7.0 V –1.2 mA VCC = MAX, VIN = 0.5 V –225 mA VCC = MAX, VOUT = 0 V IIL Input LOW Current IOS Output Short Circuit Current (Note 2) ICC Power Supply Current Total, Output HIGH 4 mA VCC = MAX, VIN = GND Total, Output LOW 17 mA VCC = MAX, VIN = Open –100 NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type. 2. Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS Symbol Parameter 74F 74F TA = +25°C TA = 0°C to 70°C VCC = +5.0 V VCC = 5.0 V ± 10% CL = 50 pF CL = 50 pF Min Max Min Max Unit tPLH Propagation Delay 1.5 6.0 1.5 7.0 ns tPHL Propagation Delay 1.0 5.0 1.0 5.5 ns FUNCTION TABLE Inputs Output A B C D Y L X X X H X L X X H X X L X H X X X L H H H H H L H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care FAST AND LS TTL DATA 4-28