74vhc257 STMicroelectronics, 74vhc257 Datasheet
74vhc257
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74vhc257 Summary of contents
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... PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 257 IMPROVED LATCH-UP IMMUNITY LOW NOISE 0.8V (MAX.) OLP DESCRIPTION The 74VHC257 is an advanced high-speed CMOS QUAD 2-CHANNEL (3-STATE) fabricated with sub-micron silicon gate and double-layer metal wiring composed of four independent 2-channel multiplexers with common SELECT and ENABLE (OE) INPUT ...
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... Figure 2: Input Equivalent Circuit Table 3: Truth Table OE SELECT Don’t Care Z : High Impedance Figure 3: Logic Diagram This logic diagram has not be used to estimate propagation delays 2/14 Table 2: Pin Description PIN N° 11 10 ...
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... V Input Voltage I V Output Voltage O T Operating Temperature op Input Rise and Fall Time (note 1) (V dt/ from 30 Parameter Parameter = 3.3 0.3V 5.0 0.5V) CC 74VHC257 Value Unit -0.5 to +7.0 V -0.5 to +7 -65 to +150 °C 300 °C Value Unit ...
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... Table 6: DC Specifications Symbol Parameter V High Level Input IH Voltage 3 Low Level Input IL Voltage 3 High Level Output OH Voltage V Low Level Output OL Voltage I High Impedance OZ Output Leakage Current I Input Leakage I Current I Quiescent Supply CC Current 4/14 Test Condition (V) Min. 2.0 1.5 0.7V CC 5.5 2.0 5 ...
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... A Typ. Max. Min. Max. Min. 5.8 9.3 1.0 11.0 1.0 8.3 12.8 1.0 14.5 1.0 3.6 5.9 1.0 7.0 1.0 5.1 7.9 1.0 9.0 1.0 7.0 11.0 1.0 13.0 1.0 9.5 14.5 1.0 16.5 1.0 4.0 6.8 1.0 8.0 1.0 5.5 8.8 1.0 10.0 1.0 6.7 10.5 1.0 12.5 1.0 9.2 14.0 1.0 16.0 1.0 3.6 6.8 1.0 8.0 1.0 5.1 8.8 1.0 10.0 1.0 8.6 12.0 1.0 13.5 1.0 5.7 7.9 1.0 9.0 1.0 Value = 25°C -40 to 85°C -55 to 125°C A Typ. Max. Min. Max. Min CC(opr 74VHC257 Unit Max. 11.0 14.5 ns 7.0 9.0 13.0 16.5 ns 8.0 10.0 12.5 16.0 ns 8.0 10.0 13.5 ns 9.0 Unit Max (per IN CC 5/14 ...
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... Table 9: Dynamic Switching Characteristics Symbol Parameter V Dynamic Low OLP Voltage Quiet V OLV Output (note 1, 2) Dynamic High V Voltage Input IHD (note 1, 3) Dynamic Low V Voltage Input ILD (note Worst case package. 2) Max number of outputs defined as (n). Data inputs are driven 0V to 5.0V, (n-1) outputs switching and one output at GND. ...
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... Figure 5: Waveform - Propagation Delays For Inverting Conditions (f=1MHz; 50% duty cycle) Figure 6: Waveform - Propagation Delays For Non-inverting Conditions (f=1MHz; 50% duty cycle) 74VHC257 7/14 ...
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... Figure 7: Waveform - Output Enable And Disable Time (f=1MHz; 50% duty cycle) 8/14 ...
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... 9 3.8 G 4 mm. TYP MAX. 1.75 0.25 0.004 1.64 0.46 0.013 0.25 0.007 0.5 45° (typ.) 10 0.385 6.2 0.228 1.27 8.89 4.0 0.149 5.3 0.181 1.27 0.019 0.62 8° (max.) 74VHC257 inch MIN. TYP. 0.019 0.050 0.350 0016020D MAX. 0.068 0.010 0.063 0.018 0.010 0.393 0.244 0.157 0.208 0.050 0.024 9/14 ...
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... DIM. MIN 0.05 A2 0.8 b 0.19 c 0.09 D 4.9 E 6 0˚ PIN 1 IDENTIFICATION 1 10/14 TSSOP16 MECHANICAL DATA mm. TYP MAX. 1.2 0.15 1 1.05 0.30 0.20 5 5.1 6.4 6.6 4.4 4.48 0.65 BSC 8˚ 0.60 0. inch MIN. TYP. 0.002 0.004 0.031 0.039 0.007 0.004 0.0079 0.193 0.197 0.244 0.252 0.169 0.173 0.0256 BSC 0˚ ...
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... Tape & Reel SO-16 MECHANICAL DATA DIM. MIN 12 6.45 Bo 10.3 Ko 2.1 Po 3.9 P 7.9 mm. TYP MAX. 330 13.2 0.504 0.795 2.362 22.4 6.65 0.254 10.5 0.406 2.3 0.082 4.1 0.153 8.1 0.311 74VHC257 inch MIN. TYP. MAX. 12.992 0.519 0.882 0.262 0.414 0.090 0.161 0.319 11/14 ...
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... Tape & Reel TSSOP16 MECHANICAL DATA DIM. MIN 12 6.7 Bo 5.3 Ko 1.6 Po 3.9 P 7.9 12/14 mm. TYP MAX. 330 13.2 0.504 0.795 2.362 22.4 6.9 0.264 5.5 0.209 1.8 0.063 4.1 0.153 8.1 0.311 inch MIN. TYP. MAX. 12.992 0.519 0.882 0.272 0.217 0.071 0.161 0.319 ...
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... Table 10: Revision History Date Revision 12-Nov-2004 4 Description of Changes Order Codes Revision - pag. 1. 74VHC257 13/14 ...
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... Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice ...