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SN74AS869DW Datasheet(PDF) 10 Page - Texas Instruments |
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SN74AS869DW Datasheet(HTML) 10 Page - Texas Instruments |
10 / 24 page SN54AS867, SN54AS869 SN74ALS867A, SN74ALS869, SN74AS867, SN74AS869 SYNCHRONOUS 8-BIT UP/DOWN COUNTERS SDAS115C – DECEMBER 1982 – REVISED JANUARY 1995 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage, VI 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range, TA: SN74ALS869 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 SN74ALS869 UNIT MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 V VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V IOH High-level output current – 0.4 mA IOL Low-level output current 8 mA fclock Clock frequency 0 35 MHz tw(clock) Pulse duration, CLK high or low 14 ns Data inputs A – H 10 ENP or ENT 15 t Set p time before CLK ↑ S0 and S1 low (clear) 13 ns tsu Setup time before CLK ↑ S0 low and S1 high (load) 13 ns S0 high and S1 low (count down) 13 S0 and S1 high (count up) 13 th Hold time after CLK ↑ S0 high after S1 ↑ or S1 high after S0↑ 3 ns th Hold time after CLK ↑ Data inputs A – H 0 ns TA Operating free-air temperature 0 70 °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN74ALS869 UNIT PARAMETER TEST CONDITIONS MIN TYP‡ MAX UNIT VIK VCC = 4.5 V, II = –18 mA –1.2 V VOH VCC = 4.5 V to 5.5 V, IOH = – 0.4 mA VCC –2 V VOL VCC =4 5V IOL = 4 mA 0.25 0.4 V VOL VCC = 4.5 V IOL = 8 mA 0.35 0.5 V II VCC = 5.5 V, VI = 7 V 0.1 mA IIH VCC = 5.5 V, VI = 2.7 V 20 µA IIL VCC = 5.5 V, VI = 0.4 V – 0.2 mA IO§ VCC = 5.5 V, VO = 2.25 V –30 –112 mA ICC VCC = 5.5 V 28 45 mA ‡ 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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