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74F1779 Datasheet(PDF) 6 Page - NXP Semiconductors |
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74F1779 Datasheet(HTML) 6 Page - NXP Semiconductors |
6 / 12 page Philips Semiconductors Product specification 74F1779 8-bit bidirectional binary counter (3-State) 1989 Apr 06 6 DC ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL PARAMETER TEST CONDITIONS1 LIMITS UNIT SYMBOL PARAMETER TEST CONDITIONS1 MIN TYP2 MAX UNIT TC VCC = MIN, VIL = MAX IO = 1mA ±10%VCC 2.5 V VO High level output voltage TC VIL = MAX VIH = MIN IOH = –1mA ±5%VCC 2.7 3.4 V VOH High-level output voltage I/On VCC = MIN, VIL = MAX IO = 3mA ±10%VCC 2.4 V I/On VIL = MAX VIH = MIN IOH = –3mA ±5%VCC 2.7 3.3 V VO Low level output voltage VCC = MIN, VIL = MAX IO = MAX ±10%VCC 0.30 0.50 V VOL Low-level output voltage VIL = MAX VIH = MIN IOL = MAX ±5%VCC 0.35 0.50 V VIK Input clamp voltage VCC = MIN, II = IIK –0.73 –1.2 V I Input current at maximum I/On VCC = 5.5V, VI = 5.5V 1 mA II input voltage others VCC = 5.5V, VI = 7.0V 100 µA IIH High-level input current except VCC = MAX, VI = 2.7V 20 µA IIL Low-level input current I/On VCC = MAX, VI = 0.5V –0.6 mA IIH+IOZH Off-state output current High-level voltage applied I/On VCC = MAX, VO = 2.7V 70 µA IIL+IOZL Off-state output current Low-level voltage applied I/On VCC = MAX, VO = 0.5V –600 µA IOS Short-circuit output current3 VCC = MAX –60 –150 mA ICCH 100 145 mA ICC Supply current (total) ICCL VCC = MAX 100 145 mA ICCZ 110 155 mA NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type. 2. All typical values are at VCC = 5V. Tamb = 25°C. 3. Not more than one output should be shorted at a time. For testing IOS, the use of high-speed test apparatus and/or sample-and-hold techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other tests. In any sequence of parameter tests, IOS tests should be performed last. AC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL PARAMETER TEST CONDITION Tamb = +25°C VCC = +5.0V CL = 50pF, RL = 500Ω Tamb = 0°C to +70°C VCC = +5.0V ± 10% CL = 50pF, RL = 500Ω UNIT MIN TYP MAX MIN MAX fMAX Maximum clock frequency Waveform 1 115 130 100 MHz tPLH tPHL Propagation delay CP to I/On Waveform 1 4.0 5.0 6.5 7.0 10.0 10.5 4.0 5.0 10.5 11.0 ns tPLH tPHL Propagation delay CP to TC Waveform 1 4.0 4.5 6.5 6.5 9.0 9.0 3.5 4.0 9.5 9.5 ns tPLH tPHL Propagation delay CET to TC Waveform 2 2.0 2.5 4.0 4.5 6.5 7.0 2.0 2.5 7.5 7.5 ns tPZH tPZL Output Enable time to High or Low level Waveform 4 Waveform 5 2.0 4.5 4.0 6.5 6.5 9.0 2.0 4.0 7.5 9.5 ns tPHZ tPLZ Output Enable time from High or Low level Waveform 4 Waveform 5 1.0 1.0 3.0 4.0 6.0 7.0 1.0 1.0 6.5 7.5 ns |
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