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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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SN74BCT245NSR Datenblatt(PDF) 2 Page - Texas Instruments |
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SN74BCT245NSR Datenblatt(HTML) 2 Page - Texas Instruments |
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2 / 20 page  SN54BCT245, SN74BCT245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCBS013H – SEPTEMBER 1998 – REVISED MAY 2002 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 FUNCTION TABLE INPUTS OPERATION OE DIR OPERATION L L B data to A bus L H A data to B bus H X Isolation logic diagram (positive logic) DIR OE A1 B1 1 2 18 19 To Seven Other Channels absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC –0.5 V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage range, VI: Control inputs (see Note 1) –0.5 V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I/O ports (see Note 1) –0.5 V to 5.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage range applied to any output in the disabled or power-off state, VO –0.5 V to 7 V . . . . . . . . . . . . . . . . . Voltage range applied to any output in the high state, VO –0.5 V to VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Current into any output in the low state, IO: SN54BCT245 96 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74BCT245 128 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package thermal impedance, θJA (see Note 2): DB package 70 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DW package 58 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N package 69 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NS package 60 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PW package 83 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg –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. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51-7. |
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