(China (Mainland))
Product Summary
The SN74LVC257ADBR is a quadruple 2 line to 1 line data selector/multiplexer with 3 state outputs. The SN74LVC257ADBR is designed for 1.65-V to 3.6-V VCC operation. The SN74LVC257ADBR is designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (OE) input is at a high logic level.
Parametrics
SN74LVC257ADBR absolute maximum ratings: (1)Supply voltage range, VCC: -0.5 V to 6.5 V; (2)Input voltage range, VI: -0.5 V to 6.5 V; (3)Output voltage range, VO: -0.5 V to VCC + 0.5 V; (4)Input clamp current, IIK (VI＜0): -50 mA; (5)Output clamp current, IOK (VO＜0): -50 mA; (6)Continuous output current, IO: ±50 mA; (7)Continuous current through VCC or GND: ±100 mA; (8)Package thermal impedance, θJA DB package: 82℃/W; (9)Storage temperature range, Tstg: -65℃ to 150℃.
Features
SN74LVC257ADBR features: (1)Operate From 1.65 V to 3.6 V; (2)Inputs Accept Voltages to 5.5 V; (3)Max tpd of 4.6 ns at 3.3 V; (4)Typical VOLP (Output Ground Bounce) ＜0.8 V at VCC = 3.3 V, TA = 25℃; (5)Typical VOHV (Output VOH Undershoot) ＞2 V at VCC = 3.3 V, TA = 25℃; (6)Latch-Up Performance Exceeds 250 mA Per JESD 17; (7) ESD Protection Exceeds JESD 22: 2000-V Human-Body Model (A114-A), 200-V Machine Model (A115-A).
Diagrams
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 SN74LVC257ADBR |
Texas Instruments |
Encoders, Decoders, Multiplexers & Demultiplexers Tri-State Quad Data |
Data Sheet |
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SN74LVC257ADBRE4 |
Texas Instruments |
Encoders, Decoders, Multiplexers & Demultiplexers Quad 2:1 Data Slctr/ Mltplxr W/3St Otp |
Data Sheet |
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SN74LVC257ADBRG4 |
Texas Instruments |
Encoders, Decoders, Multiplexers & Demultiplexers Quad 2Line To 1Line Data Selctr Multi |
Data Sheet |
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