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DM74LS299N Scheda tecnica(PDF) 4 Page - Fairchild Semiconductor |
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DM74LS299N Scheda tecnica(HTML) 4 Page - Fairchild Semiconductor |
4 / 6 page www.fairchildsemi.com 4 Electrical Characteristics Over recommended operating free air temperature range (unless otherwise noted) Note 2: All typicals are at VCC = 5V, TA = 25°C. Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second. Switching Characteristics VCC = +5.0V, TA = +25°C Symbol Parameter Conditions Min Typ Max Units (Note 2) VI Input Clamp Voltage VCC = Min, II = −18 mA −1.5 V VOH HIGH Level VCC = Min, IOH = Max Q0, Q7 2.7 3.4 V Output Voltage VIL = Max I/O0–I/O7 2.4 VOL LOW Level VCC = Min, IOL = Max 0.35 0.5 Output Voltage VIH = Min V IOL = 4 mA, VCC = Min 0.25 0.4 II Input Current @ Max VCC = Max Inputs 0.1 mA Input Voltage VI = 7V Sn 0.2 mA IIH HIGH Level VCC = Max, VI = 2.7V Sn 40 µA Input Current Inputs 20 µA IIL LOW Level VCC = Max, VI = 0.4V Sn −0.8 mA Input Current Inputs −0.4 mA IOS Short Circuit VCC = Max Q0, Q7 −20 −100 mA Output Current (Note 3) I/O0–I/O7 −30 −130 ICC Supply Current VCC = Max, OE = 4.5V 60 mA IOZH 3-STATE Output Off VCC = Max 40 µA Current HIGH VO = 2.7V IOZL 3-STATE Output Off VCC = Max −400 µA Current Low VO = 0.4V Symbol Parameter RL = 2 kΩ Units CL = 15 pF Min Max fMAX Maximum Input Frequency 35 MHz tPLH Propagation Delay 26 ns tPHL CP to Q0 or Q7 28 tPLH Propagation Delay 25 ns tPHL CP to I/On 35 tPHL Propagation Delay 28 ns MR to Q0 or Q7 tPHL Propagation Delay 35 ns MR to I/On tPZH Output Enable Time 18 ns tPZL 25 tPHZ Output Disable Time 15 ns tPLZ 20 |
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Descrizione simile - DM74LS299N |
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