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SN74LVC244APW 数据表(PDF) 3 Page - Texas Instruments |
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SN74LVC244APW 数据表(HTML) 3 Page - Texas Instruments |
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3 / 23 page  www.ti.com 1 2 18 1Y1 1OE 1A1 4 16 1Y2 1A2 6 14 1Y3 1A3 8 12 1Y4 1A4 19 11 9 2Y1 2OE 2A1 13 7 2Y2 2A2 15 5 2Y3 2A3 17 3 2Y4 2A4 Pin numbers shown are for the DB, DGV, DW, N, NS, PW, and RGY packages. Absolute Maximum Ratings (1) SN74LVC244A OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS SCAS414X – NOVEMBER 1992 – REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT VCC Supply voltage range –0.5 6.5 V VI Input voltage range(2) –0.5 6.5 V VO Voltage range applied to any output in the high-impedance or power-off state(2) –0.5 6.5 V VO Voltage range applied to any output in the high or low state(2)(3) –0.5 VCC + 0.5 V IIK Input clamp current VI < 0 –50 mA IOK Output clamp current VO < 0 –50 mA IO Continuous output current ±50 mA Continuous current through VCC or GND ±100 mA DB package(4) 70 DGV package(4) 92 DW package(4) 58 GQN/ZQN package(4) 78 θ JA Package thermal impedance °C/W N package(4) 69 NS package(4) 60 PW package(4) 83 RGY package(5) 37 Tstg Storage temperature range –65 150 °C Ptot Power dissipation TA = –40°C to 125°C(6)(7) 500 mW (1) 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. (2) The input and output negative-voltage ratings may be exceeded if the input and output current ratings are observed. (3) The value of VCC is provided in the recommended operating conditions table. (4) The package thermal impedance is calculated in accordance with JESD 51-7. (5) The package thermal impedance is calculated in accordance with JESD 51-5. (6) For the DW package: above 70°C the value of Ptot derates linearly with 8 mW/K. (7) For the DB, DGV, N, NS, and PW packages: above 60°C the value of Ptot derates linearly with 5.5 mW/K. 3 |
类似零件编号 - SN74LVC244APW |
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类似说明 - SN74LVC244APW |
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