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MC74AC521N Datasheet(PDF) 3 Page - Motorola, Inc |
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MC74AC521N Datasheet(HTML) 3 Page - Motorola, Inc |
3 / 6 page MC74AC521 MC74ACT521 5-3 FACT DATA RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min Typ Max Unit VCC Supply Voltage ′AC 2.0 5.0 6.0 V VCC Supply Voltage ′ACT 4.5 5.0 5.5 V Vin, Vout DC Input Voltage, Output Voltage (Ref. to GND) 0 VCC V tr, tf Input Rise and Fall Time (Note 1) ′AC Devices except Schmitt Inputs VCC @ 3.0 V 150 tr, tf Input Rise and Fall Time (Note 1) ′AC Devices except Schmitt Inputs VCC @ 4.5 V 40 ns/V r, tf ′AC Devices except Schmitt Inputs VCC @ 5.5 V 25 tr, tf Input Rise and Fall Time (Note 2) ′ACT Devices except Schmitt Inputs VCC @ 4.5 V 10 ns/V tr, tf Input Rise and Fall Time (Note 2) ′ACT Devices except Schmitt Inputs VCC @ 5.5 V 8.0 ns/V TJ Junction Temperature (PDIP) 140 °C TA Operating Ambient Temperature Range –40 25 85 °C IOH Output Current — High –24 mA IOL Output Current — Low 24 mA 1. Vin from 30% to 70% VCC; see individual Data Sheets for devices that differ from the typical input rise and fall times. 2. Vin from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times. DC CHARACTERISTICS Symbol Parameter VCC (V) 74AC 74AC Unit Conditions Symbol Parameter VCC (V) TA = +25°C TA = –40 °C to +85°C Unit Conditions Typ Guaranteed Limits VIH Minimum High Level Input Voltage 3.0 1.5 2.1 2.1 VOUT = 0.1 V Input Voltage 4.5 2.25 3.15 3.15 V or VCC – 0.1 V 5.5 2.75 3.85 3.85 VIL Maximum Low Level Input Voltage 3.0 1.5 0.9 0.9 VOUT = 0.1 V Input Voltage 4.5 2.25 1.35 1.35 V or VCC – 0.1 V 5.5 2.75 1.65 1.65 VOH Minimum High Level Output Voltage 3.0 2.99 2.9 2.9 IOUT = –50 µA Output Voltage 4.5 4.49 4.4 4.4 V 5.5 5.49 5.4 5.4 V *VIN = VIL or VIH 3.0 2.56 2.46 V –12 mA 4.5 3.86 3.76 V IOH –24 mA 5.5 4.86 4.76 –24 mA VOL Maximum Low Level Output Voltage 3.0 0.002 0.1 0.1 IOUT = 50 µA Output Voltage 4.5 0.001 0.1 0.1 V 5.5 0.001 0.1 0.1 V *VIN = VIL or VIH 3.0 0.36 0.44 V 12 mA 4.5 0.36 0.44 V IOL 24 mA 5.5 0.36 0.44 24 mA IIN Maximum Input Leakage Current 5.5 ±0.1 ±1.0 µA VI = VCC, GND Leakage Current 5.5 ±0.1 ±1.0 µA VI = VCC, GND IOLD †Minimum Dynamic Output Current 5.5 75 mA VOLD = 1.65 V Max IOHD Output Current 5.5 –75 mA VOHD = 3.85 V Min ICC Maximum Quiescent Supply Current 5.5 8.0 80 µA VIN = VCC or GND Supply Current 5.5 8.0 80 µA VIN = VCC or GND * All outputs loaded; thresholds on input associated with output under test. † Maximum test duration 2.0 ms, one output loaded at a time. Note: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V VCC. |
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