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74LVC257A Scheda tecnica(PDF) 5 Page - NXP Semiconductors |
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74LVC257A Scheda tecnica(HTML) 5 Page - NXP Semiconductors |
5 / 10 page Philips Semiconductors Product specification 74LVC257A Quad 2-input multiplexer with 5 Volt tolerant inputs/outputs (3-State) 1998 Jul 29 5 DC ELECTRICAL CHARACTERISTICS Over recommended operating conditions voltages are referenced to GND (ground = 0V) LIMITS SYMBOL PARAMETER TEST CONDITIONS Temp = -40 °C to +85°C UNIT MIN TYP1 MAX V HIGH level Input voltage VCC = 1.2V VCC V VIH HIGH level Input voltage VCC = 2.7 to 3.6V 2.0 V V LOW level Input voltage VCC = 1.2V GND V VIL LOW level Input voltage VCC = 2.7 to 3.6V 0.8 V VCC = 2.7V; VI = VIH or VIL; IO = –12mA VCC*0.5 VO HIGH level output voltage VCC = 3.0V; VI = VIH or VIL; IO = –100µA VCC*0.2 VCC V VOH HIGH level output voltage VCC = 3.0V; VI = VIH or VIL; IO = –18mA VCC*0.6 V VCC = 3.0V; VI = VIH or VIL; IO = –24mA VCC*0.8 VCC = 2.7V; VI = VIH or VIL; IO = 12mA 0.40 VOL LOW level output voltage VCC = 3.0V; VI = VIH or VIL; IO = 100µA GND 0.20 V VCC = 3.0V; VI = VIH or VIL; IO = 24mA 0.55 I Input leakage current VCC =3 6V; V = 5 5V or GND "01 "5 µA II Input leakage current VCC = 3.6V; VI = 5.5V or GND "0.1 "5 µA IOZ 3-State output OFF-state current VCC = 3.6V; VI = VIH or VIL; VO = VCC or GND 0.1 "5 µA IOFF Power off leakage current VCC = 0.0V; VI or VO = 5.5V 0.1 "10 µA ICC Quiescent supply current VCC = 3.6V; VI = VCC or GND; IO = 0 0.1 10 µA ∆ICC Additional quiescent supply current per input pin VCC = 2.7V to 3.6V; VI = VCC –0.6V; IO = 0 5 500 µA NOTES: 1. All typical values are at VCC = 3.3V and Tamb = 25°C. AC CHARACTERISTICS GND = 0 V; tr = tf v 2.5 ns; CL = 50 pF; RL = 500W; Tamb = –40_C to +85_C LIMITS SYMBOL PARAMETER WAVEFORM VCC = 3.3V ±0.3V VCC = 2.7V VCC = 1.2V UNIT MIN TYP1 MAX MIN TYP1 MAX TYP tPHL/tPLH Propagation delay nl0 to nY nl1 to nY Figures 1, 3 1.5 3.9 5.1 1.5 3.3 6.1 11 ns tPHL/tPLH Propagation delay S to nY Figures 1, 3 1.5 3.5 6.4 1.5 4.3 7.5 14 ns tPZH/tPZL 3-state output enable time OE to nY Figures 2, 3 1.5 3.7 6.5 1.5 4.6 7.5 15 ns tPHZ/tPLZ 3-state output disable time OE to nY Figures 2, 3 1.5 3.2 5.2 1.5 3.5 6.2 12 ns NOTE: 1. These typical values are at VCC = 3.3V and Tamb = 25°C. |
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