74ACT257 STMicroelectronics, 74ACT257 Datasheet
74ACT257
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74ACT257 Summary of contents
Page 1
... The device is designed to interface directly High Speed CMOS systems with TTL, NMOS and CMOS output voltage levels. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. 74ACT257 M (Micro Package) 74ACT257M 1/10 ...
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... INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE O E SELECT DON’T CARE Z = HIGH IMPEDANCE LOGIC DIAGRAMS This logic diagram has not be used to estimate propagation delays 2/10 PIN DESCRIPTION PIN No SYMBOL 1 SELECT 13, 10 ...
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... RECOMMENDED OPERATING CONDITIONS Symbol Parameter V Supply Voltage CC V Input Voltage I V Output Voltage O T Operating Temperature: op dt/dv Input Rise and Fall Time from 0 2 4.5 to 5.5V (note 1) CC 74ACT257 Value Unit - 200 mA o -65 to +150 ...
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... DC SPECIFICATIONS Symbol Parameter V High Level Input Voltage IH V Low Level Input Voltage IL V High Level Output OH Voltage V Low Level Output OL Voltage I Input Leakage Current State Output Leakage OZ Current I Max I /Input CCT CC I Quiescent Supply CC Current I Dynamic Output Current OLD ...
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... Input est Cond ition (V) Min. Typ. (*) 5.0 (*) 5.0 (*) 5.0 (*) 5.0 Test Con dition (V) Min. Typ. 5.0 5.0 5.0 (opr 74ACT257 = Value Unit - Max. Min . Max. 5.0 7.0 8.0 ns 6.0 9.0 10.0 ns 5.0 8.0 9.0 ns 6.0 9.0 10.0 ns Value Unit - Max. ...
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... WAVEFORM 1: PROPAGATION DELAYS FOR INVERTING CONDITIONS (f=1MHz; 50% duty cycle) WAVEFORM 2: PROPAGATION DELAYS FOR NON-INVERTING CONDITIONS (f=1MHz; 50% duty cycle) 6/10 ...
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... WAVEFORM 3: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle) 74ACT257 7/10 ...
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... Plastic DIP16 (0.25) MECHANICAL DATA DIM. MIN. TYP. a1 0. 2.54 e3 17. 8/10 mm MAX. MIN. 0.020 1.65 0.030 0.5 20 8.5 7.1 5.1 3.3 1.27 inch TYP. MAX. 0.065 0.020 0.010 0.787 0.335 0.100 0.700 0.280 0.201 0.130 0.050 P001C ...
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... MIN. TYP 0 0.35 b1 0. 9.8 E 5.8 e 1.27 e3 8.89 F 3.8 G 4 inch MAX. MIN. TYP. 1.75 0.2 0.004 1.65 0.46 0.013 0.25 0.007 0.019 45 (typ.) 10 0.385 6.2 0.228 0.050 0.350 4.0 0.149 5.3 0.181 1.27 0.019 0.62 8 (max.) 74ACT257 MAX. 0.068 0.007 0.064 0.018 0.010 0.393 0.244 0.157 0.208 0.050 0.024 P013H 9/10 ...
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... Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsabilit y for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice ...