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SN74AS286DR 데이터시트(PDF) 3 Page - Texas Instruments |
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SN74AS286DR 데이터시트(HTML) 3 Page - Texas Instruments |
3 / 15 page SN54AS286, SN74AS286 9BIT PARITY GENERATORS/CHECKERS WITH BUSDRIVER PARITY I/O PORT SDAS050B − DECEMBER 1983 − REVISED DECEMBER 1994 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage, VI 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage applied to a disabled 3-state output 5.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range, TA: SN54AS286 −55 °C to 125°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74AS286 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. recommended operating conditions SN54AS286 SN74AS286 UNIT MIN NOM MAX MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 4.5 5 5.5 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.8 0.8 V IOH High-level output current PARITY ERROR −2 −2 mA IOH High-level output current PARITY I/O −12 −15 mA IOL Low-level output current PARITY ERROR 20 20 mA IOL Low-level output current PARITY I/O 32 48 mA TA Operating free-air temperature −55 125 0 70 °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN54AS286 SN74AS286 UNIT PARAMETER TEST CONDITIONS MIN TYP‡ MAX MIN TYP‡ MAX UNIT VIK VCC = 4.5 V, II = − 18 mA − 1.2 − 1.2 V All outputs VCC = 4.5 V to 5.5 V, IOH = − 2 mA VCC −2 VCC −2 VOH IOH = − 3 mA 2.4 2.9 2.4 3 V VOH PARITY I/O VCC = 4.5 V IOH = − 12 mA 2.4 V PARITY I/O VCC = 4.5 V IOH = − 15 mA 2.4 PARITY ERROR IOL = 20 mA 0.35 0.5 0.35 0.5 VOL PARITY I/O VCC = 4.5 V IOL = 32 mA 0.5 V VOL PARITY I/O VCC = 4.5 V IOL = 48 mA 0.5 V II PARITY I/O VCC = 5.5 V VI = 5.5 V 0.1 0.1 mA II All other inputs VCC = 5.5 V VI = 7 V 0.1 0.1 mA IIH PARITY I/O§ VCC = 5.5 V, VI = 2.7 V 50 50 A IIH All other inputs VCC = 5.5 V, VI = 2.7 V 20 20 µA IIL PARITY I/O§ VCC = 5.5 V, VI = 0.4 V − 0.5 − 0.5 mA IIL All other inputs VCC = 5.5 V, VI = 0.4 V − 0.5 − 0.5 mA IO¶ VCC = 5.5 V, VO = 2.25 V −30 −112 −30 −112 mA ICC Transmit VCC = 5.5 V 30 43 30 43 mA ICC Receive VCC = 5.5 V 35 50 35 50 mA ‡ All typical values are at VCC = 5 V, TA = 25°C. § For I/O ports, the parameters IIH and IIL include the off-state output current. ¶ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. |
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