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SN74ALS520DWE4 数据表(PDF) 6 Page - Texas Instruments |
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SN74ALS520DWE4 数据表(HTML) 6 Page - Texas Instruments |
6 / 16 page SN54ALS520, SN74ALS518, SN74ALS520, SN74ALS521 8-BIT IDENTITY COMPARATORS SDAS224B – JUNE 1982 – REVISED NOVEMBER 1995 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 680 Ω, TA = MIN to MAX† UNIT (INPUT) (OUTPUT) SN74ALS518 MIN MAX tPLH PorQ PQ 15 33 ns tPHL P or Q P = Q 3 15 ns tPLH G P=Q 15 33 ns tPHL G P = Q 3 15 ns † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage, VCC 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage, VI: Q inputs of ′ALS520 VCC + 0.5 V or 5.5 V, whichever is less . . . . . . . . . . . . . . . . . . . . . . . . . All other inputs 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range, TA: SN54ALS520 – 55 °C to 125°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74ALS520, SN74ALS521 0 °C to 70°C . . . . . . . . . . . . . . . . . . . . Storage temperature range – 65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ‡ Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. recommended operating conditions SN54ALS520 SN74ALS520 SN74ALS521 UNIT MIN NOM MAX MIN NOM MAX VCC Supply voltage 4.5 5 5.5 4.5 5 5.5 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.7 0.8 V IOH High-level output current –1 – 2.6 mA IOL Low-level output current 12 24 mA TA Operating free-air temperature –55 125 0 70 °C |
类似零件编号 - SN74ALS520DWE4 |
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类似说明 - SN74ALS520DWE4 |
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