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SN74CBT34X245 데이터시트(PDF) 2 Page - Texas Instruments |
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SN74CBT34X245 데이터시트(HTML) 2 Page - Texas Instruments |
2 / 7 page SN74CBT34X245 32-BIT FET BUS SWITCH SCDS089C – MAY 1999 – REVISED MAY 2001 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING –40 °C to 85°C TVSOP – DBB Tape and reel SN74CBT34X245DBBR CBT34X245 † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (each 8-bit bus switch) INPUT OE FUNCTION L A port = B port H Disconnect logic diagram (positive logic) 3A1 3A8 1OE 1B1 1B8 2 9 79 78 71 2A8 2OE 2B1 2B8 12 19 69 68 61 2A1 3B1 3B8 22 29 59 58 51 1A1 1A8 3OE 4A8 4OE 32 39 49 48 41 4A1 4B1 4B8 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 (see Note 1) –0.5 V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous channel current 128 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input clamp current, IIK (VI/O < 0) –50 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package thermal impedance, θJA (see Note 2) 64 °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 negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51-7. |
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