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SN74AS880 데이터시트(PDF) 3 Page - Texas Instruments |
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SN74AS880 데이터시트(HTML) 3 Page - Texas Instruments |
3 / 6 page SN54ALS880A, SN54AS880, SN74ALS880A, SN74AS880 DUAL 4-BIT D-TYPE LATCHES WITH 3-STATE OUTPUTS SDAS079A – D2661, DECEMBER 1982 – REVISED MAY 1986 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage, VCC 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage applied to a disabled 3-state output 5.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range: SN54ALS880A, SN54AS880 – 55 °C to 125°C . . . . . . . . . . . . . . . . . SN74ALS880A, SN74AS880 0 °C to 70°C . . . . . . . . . . . . . . . . . . . . . Storage temperature range – 65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . recommended operating conditions SN54ALS880A SN74ALS880A 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 0.7 0.8 V IOH High-level output current –1 – 2.6 mA IOL Low-level output current 12 24 mA t Pulse duration PRE low 15 15 ns tw Pulse duration C high 15 15 tsu Setup time, data before C ↓ 10 10 ns th Hold time, data after C ↓ 10 10 ns 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 SN54ALS880A SN74ALS880A UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = – 18 mA – 1.2 – 1.2 V VCC = 4.5 V to 5.5 V, IOH = – 0.4 mA VCC –2 VCC –2 VOH VCC = 4.5 V, IOH = – 1 mA 2.4 3.3 V VCC = 4.5 V, IOH = – 2.6 mA 2.4 3.2 VOL VCC = 4.5 V, IOL = 12 mA 0.25 0.4 0.25 0.4 V VOL VCC = 4.5 V, IOL = 24 mA 0.35 0.5 V IOZH VCC = 5.5 V, VO = 2.7 V 20 20 µA IOZL VCC = 5.5 V, VO = 0.4 V –20 –20 µA II VCC = 5.5 V, VI = 7 V 0.1 0.1 mA IIH VCC = 5.5 V, VI = 2.7 V 20 20 µA IIL VCC = 5.5 V, VI = 0.4 V – 0.2 – 0.2 mA IO‡ VCC = 5.5 V, VO = 2.25 V –30 –112 –30 –112 mA Outputs high 14 21 14 21 ICC VCC = 5.5 V Outputs low 19 29 19 29 mA Outputs disabled 20 31 20 31 † All typical values are at VCC = 5 V, TA = 25°C. ‡ 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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