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SN74BCT2420 データシート(PDF) 6 Page - Texas Instruments |
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SN74BCT2420 データシート(HTML) 6 Page - Texas Instruments |
6 / 12 page SN74BCT2420 NuBus ™ ADDRESS/DATA TRANSCEIVERS AND REGISTERS SDIS007A – D3159, NOVEMBER 1988 – REVISED JANUARY 1989 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 6 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC (see Note 1) 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage (all inputs and I/O ports) 5.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range 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. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the recommended operating conditions section of this specification is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: All voltage values are with respect to GND. recommended operating conditions PARAMETER MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 V VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V IOH High level input current Ax, Dx, ADx outputs –15 mA IOH High-level input current SSEQ, IDEQ outputs 2.6 mA IOL Low level input current Ax, Dx, ADx outputs 24 mA IOL Low-level input current SSEQ, IDEQ outputs 16 mA fclock Clock frequency 0 40 MHz ACLK, DCLK high 12.5 tw Pulse duration ACLK, DCLK low 12.5 ns ALE, DLE low 12.5 ADx before ACLK ↑, DCLK↑ 5 tsu Setup time Ax before ALE ↑ 5 ns Dx before DLE ↑ 5 ADx after ACLK ↑, DCLK↑ 2 th Hold time Ax after ALE ↑ 2 ns Dx after DLE ↑ 2 TA Operating free-air temperature 0 70 ° °C |
同様の部品番号 - SN74BCT2420 |
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同様の説明 - SN74BCT2420 |
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