MC54/74F13 MC54/74F14 SCHMITT TRIGGERS DUAL 4-INPUT NAND/HEX INVERTERS The MC54/74F13 and MC54/74F14 contain logic gates/inverters which accept standard TTL input signals and provide standard TTL output levels. They are capable of transforming slowly changing input signals into sharply defined, jitter-free output signals. Additionally, they have greater noise margin than conventional inverters. Each circuit contains a Schmitt trigger followed by a Darlington level shifter and a phase splitter driving a TTL totem pole output. The Schmitt trigger uses positive feedback to effectively speed up slow input transitions and provide different input threshold voltages for positive and negative-going transitions. This hysteresis between the positive-going and negative-going input thresholds (typically 800 mV) is determined internally by resistor ratios and is essentially insensitive to temperature and supply voltage variations. SCHMITT TRIGGERS DUAL 4-INPUT NAND/HEX INVERTERS FAST SCHOTTKY TTL J SUFFIX CERAMIC CASE 632-08 LOGIC AND CONNECTION DIAGRAMS 14 MC54/74F13 VCC 14 1 D C N/C B A O 13 12 11 10 9 8 N SUFFIX PLASTIC CASE 646-06 14 1 1 2 3 4 5 6 7 A B N/C C D O GND 14 1 MC54/74F14 VCC 14 A O A O A O 13 12 11 10 9 8 ORDERING INFORMATION MC54FXXJ MC74FXXN MC74FXXD 1 2 3 4 5 6 7 A O A O A O GND D SUFFIX SOIC CASE 751A-02 Ceramic Plastic SOIC GUARANTEED OPERATING RANGES Symbol Parameter VCC Supply Voltage TA Operating Ambient Temperature Range Min Typ Max Unit 54, 74 4.5 5.0 5.5 V 54 –55 25 125 °C 74 0 25 70 IOH Output Current — High 54, 74 –1.0 mA IOL Output Current — Low 54, 74 20 mA FAST AND LS TTL DATA 4-14 MC54/74F13 • MC54/74F14 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Parameter Min Typ Max Unit Test Conditions VT+ Positive-Going Threshold Voltage 1.5 2.0 V VCC = 5.0 V VT– Negative-Going Threshold Voltage 0.7 1.1 V VCC = 5.0 V VT+–VT– Hysteresis 0.4 V VCC = 5.0 V VIH Input HIGH Voltage 2.0 V Guaranteed Input HIGH Voltage VIL Input LOW Voltage 0.8 V Guaranteed Input LOW Voltage VIK Input Clamp Diode Voltage –1.2 V VCC = MIN, IIN = –18 mA VOH Output HIGH Voltage 0.8 54, 74 2.5 V IOH = –1.0 mA VCC = 4.5 74 2.7 V IOH = –1.0 mA VCC = 4.75 V IOL = 20 mA VCC = MIN VOL Output LOW Voltage IT+ Input Current at Positive-Going Threshold –0.14 0.5 mA VCC = 5.0 V, VIN = VT+ IT– Input Current at Negative-Going Threshold –0.18 mA VCC = 5.0 V, VIN = VT– IIH Input HIGH Current 20 µA VCC = MAX, VIN = 2.7 V 0.1 mA VCC = MAX, VIN = 7.0 V –0.6 mA VCC = MAX, VIN = 0.5 V –150 mA VCC = MAX, VOUT = 0 V mA VCC = MAX IIL Input LOW Current IOS Output Short Circuit Current (Note 2) ICCH Power Supply Current F13 4.5 8.5 Total, Output HIGH F14 13 22 Power Supply Current F13 7.0 10 Total, Output LOW F14 23 32 ICCL –60 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 (CL = 50 pF) Symbol tPLH Parameter Propagation Delay F13 tPHL tPLH tPHL Propagation Delay F14 54/74F 54F 74F TA = +25°C TA = –55°C to +125°C TA = 0°C to 70°C VCC = +5.0 V VCC = 5.0 V ± 10% VCC = 5.0 V ± 10% Min Max Min Max Min Max Unit 3.5 7.0 3.5 9.0 3.5 8.0 ns 3.0 8.0 3.0 9.5 3.0 8.5 3.5 7.0 3.5 9.0 3.5 8.0 3.0 6.5 3.0 8.0 3.0 7.0 FAST AND LS TTL DATA 4-15 ns MC54/74F13 • MC54/74F14 FUNCTION TABLE MC54/74F13 Inputs FUNCTION TABLE MC54/74F14 Output Input Output O H L A B C D O A 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 L H H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care FAST AND LS TTL DATA 4-16