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SN74BCT244DWRG4 데이터시트(PDF) 2 Page - Texas Instruments |
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SN74BCT244DWRG4 데이터시트(HTML) 2 Page - Texas Instruments |
2 / 17 page SN54BCT244, SN74BCT244 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCBS006E – OCTOBER 1987 – REVISED APRIL 1994 2–2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 logic symbol† logic diagram (positive logic) 1 2 4 6 8 19 11 13 15 17 3 5 7 9 12 14 16 18 1A1 1A2 1A3 1A4 1Y1 2A1 2A2 2A3 2A4 2Y1 1Y2 1Y3 1Y4 2Y2 2Y3 2Y4 2OE 1OE 2 1A1 4 1A2 6 1A3 8 1A4 EN 1 1Y1 18 1Y2 16 1Y3 14 1Y4 12 11 2A1 13 2A2 15 2A3 17 2A4 EN 19 2Y1 9 2Y2 7 2Y3 5 2Y4 3 1OE 2OE † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage range applied to any output in the disabled or power-off state, VO – 0.5 V to 5.5 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: SN54BCT244 96 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74BCT244 128 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range: SN54BCT244 – 55 °C to 125°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74BCT244 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. NOTE 1: The input and output voltage ratings may be exceeded if the input and output current ratings are observed. |
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