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SN74AS161N 数据表(PDF) 7 Page - Texas Instruments |
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SN74AS161N 数据表(HTML) 7 Page - Texas Instruments |
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7 / 14 page  SN54ALS161B, SN54ALS162B, SN54ALS163B, SN54AS161, SN54AS163 SN74ALS161B, SN74ALS163B, SN74AS161, SN74AS163 SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS SDAS276 – DECEMBER 1994 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage, VI 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range, TA: SN54ALS161B, SN54ALS162B, SN54ALS163B – 55 °C to 125°C . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74ALS161B, SN74ALS163B 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 SN54ALS161B SN54ALS162B SN54ALS163B SN74ALS161B SN74ALS163B 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 – 0.4 – 0.4 mA IOL Low-level output current 4 8 mA fclock Clock frequency 0 22 0 40 MHz t Pulse duration CLR high or low 20 12.5 ns tw Pulse duration ′ALS161B CLR low 20 15 ns A, B, C, D 50 15 LOAD 20 15 St ti ′ALS161B ENP ENT 25 15 tsu Setup time before CLK ↑ SN54ALS162B, ′ALS163B ENP, ENT 20 15 ns before CLK ↑ ′ALS161B CLR inactive 10 10 SN54ALS162B ′ALS163B CLR low 20 15 SN54ALS162B, ′ALS163B CLR high 20 10 th Hold time, all synchronous inputs after CLK ↑ 0 0 ns TA Operating free-air temperature –55 125 0 70 °C |
类似零件编号 - SN74AS161N |
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类似说明 - SN74AS161N |
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