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SN74AS841FN Datasheet(PDF) 7 Page - Texas Instruments |
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SN74AS841FN Datasheet(HTML) 7 Page - Texas Instruments |
7 / 11 page SN54ALS842, SN74ALS842 10-BIT BUS INTERFACE D-TYPE LATCHES WITH 3-STATE OUTPUTS SDAS059B – D2910, DECEMBER 1983 – REVISED MAY 1986 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 recommended operating conditions SN54ALS842 SN74ALS842 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 IOL Low-level output current 48† mA tw Pulse duration, C high 25 20 ns tsu Setup time, data before C ↓ 16 10 ns th Hold time,, data after C ↓ 7 5 ns TA Operating free-air temperature –55 125 0 70 °C † The 48-mA limit applies only to the – 1 versions and only if VCC is maintained between 4.75 V and 5.25 V. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN54ALS842 SN74ALS842 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 VCC = 4.5 V, IOL = 12 mA 0.25 0.4 0.25 0.4 VOL VCC = 4.5 V, IOL = 24 mA 0.35 0.5 V VCC = 4.75 V, IOL = 48 mA (- 1 versions) 0.35 0.5 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, VO = 2.7 V 20 20 µA IIL VCC = 5.5 V, VI = 0.4 V – 0.1 – 0.1 mA IO§ VCC = 5.5 V, VO = 2.25 V –30 –112 –30 –112 mA Outputs high 20 35 20 35 ICC VCC = 5.5 V Outputs low 48 74 48 74 mA Outputs disabled 27 44 27 44 ‡ 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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