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74ACT251PC Datasheet(PDF) 4 Page - Fairchild Semiconductor |
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74ACT251PC Datasheet(HTML) 4 Page - Fairchild Semiconductor |
4 / 9 page www.fairchildsemi.com 4 DC Electrical Characteristics for ACT Note 5: All outputs loaded; thresholds on input associated with output under test. Note 6: Maximum test duration 2.0 ms, one output loaded at a time. AC Electrical Characteristics for AC Note 7: Voltage Range 3.3 is 3.3V ± 0.3V. Voltage Range 5.0 is 5.0V ± 0.5V Symbol Parameter VCC (V) TA = +25°C TA = −40°C to +85°C Units Conditions Typ Guaranteed Limits VIH Minimum HIGH Level 4.5 1.5 2.0 2.0 V VOUT = 0.1V Input Voltage 5.5 1.5 2.0 2.0 or VCC − 0.1V VIL Maximum LOW Level 4.5 1.5 0.8 0.8 V VOUT = 0.1V Input Voltage 5.5 1.5 0.8 0.8 or VCC − 0.1V VOH Minimum HIGH Level 4.5 4.49 4.4 4.4 VIOUT = −50 µA Output Voltage 5.5 5.49 5.4 5.4 VIN = VIL or VIH 4.5 3.86 3.76 V IOH = −24 mA 5.5 4.86 4.76 IOH = −24 mA (Note 5) VOL Maximum LOW Level 4.5 0.001 0.1 0.1 VIOUT = 50 µA Output Voltage 5.5 0.001 0.1 0.1 VIN = VIL or VIH 4.5 0.36 0.44 V IOL = 24 mA 5.5 0.36 0.44 IOL = 24 mA (Note 5) IIN Maximum Input 5.5 ±0.1 ±1.0 µAV I = VCC, GND Leakage Current IOZ Maximum 3-STATE 5.5 ±0.5 ±5.0 µA VI = VIL, VIH Current VO = VCC, GND ICCT Maximum 5.5 0.6 1.5 mA VI = VCC − 2.1V ICC/Input IOLD Minimum Dynamic 5.5 75 mA VOLD = 1.65V Max IOHD Output Current (Note 6) 5.5 −75 mA VOHD = 3.85V Min ICC Maximum Quiescent 5.5 4.0 40.0 µA VIN = VCC Supply Current or GND VCC TA = +25°CTA = −40°C to +85°C Symbol Parameter (V) CL = 50 pF CL = 50 pF Units (Note 7) Min Typ Max Min Max tPLH Propagation Delay 3.3 1.5 11.5 17.5 1.5 19.0 ns Sn to Z or Z 5.0 1.5 8.5 12.5 1.5 13.5 tPHL Propagation Delay 3.3 1.5 11.0 17.5 1.5 19.0 ns Sn to Z or Z 5.0 1.5 8.0 12.5 1.5 13.5 tPLH Propagation Delay 3.3 1.5 10.0 14.0 1.5 15.5 ns In to Z or Z 5.0 1.5 7.0 10.0 1.5 11.0 tPHL Propagation Delay 3.3 1.5 9.0 14.0 1.5 15.5 ns In to Z or Z 5.0 1.5 6.5 10.0 1.5 11.0 tPZH Output Enable Time 3.3 1.5 7.5 11.0 1.5 12.0 ns OE to Z or Z 5.0 1.5 5.5 8.0 1.5 9.0 tPZL Output Enable Time 3.3 1.5 7.5 11.0 1.5 12.0 ns OE to Z or Z 5.0 1.5 5.5 8.0 1.5 9.0 tPHZ Output Disable Time 3.3 1.5 8.5 11.5 1.5 13.0 ns OE to Z or Z 5.0 1.5 7.0 9.5 1.5 10.0 tPLZ Output Disable Time 3.3 1.5 7.0 11.0 1.5 12.0 ns OE to Z or Z 5.0 1.5 5.5 8.0 1.5 8.5 |
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