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SN74F299N Datasheet(PDF) 4 Page - Texas Instruments |
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SN74F299N Datasheet(HTML) 4 Page - Texas Instruments |
4 / 7 page SN54F299, SN74F299 8-BIT UNIVERSAL SHIFT/STORAGE REGISTERS WITH 3-STATE OUTPUTS SDFS071A – MARCH 1987 – REVISED OCTOBER 1993 2–4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions SN54F299 SN74F299 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 IIK Input clamp current –18 –18 mA IOH High level output current QA ′ or QH′ –1 –1 mA IOH High-level output current QA thru QH –3 –3 mA IOL Low level output current QA ′ or QH′ 20 20 mA IOL Low-level output current QA thru QH 20 24 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 SN54F299 SN74F299 UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = – 18 mA – 1.2 – 1.2 V QA ′ or QH′ IOH = – 1 mA 2.5 3.4 2.5 3.4 VOH QA thru QH VCC = 4.5 V IOH = – 1 mA 2.5 3.4 2.5 3.4 V VOH QA thru QH IOH = – 3 mA 2.4 3.3 2.4 3.3 V Any output VCC = 4.75 V, IOH = – 1 mA to – 3 mA 2.7 QA ′ or QH′ IOL = 20 mA 0.3 0.5 0.3 0.5 VOL QA thru QH VCC = 4.5 V IOL = 20 mA 0.3 0.5 V QA thru QH IOL = 24 mA 0.35 0.5 II A thru H VCC =5 5V VI = 5.5 V 1 1 mA II Any other VCC = 5.5 V VI = 7 V 0.1 0.1 mA IIH‡ A thru H VCC =5 5V VI =2 7V 70 70 µA IIH‡ Any other VCC = 5.5 V, VI = 2.7 V 20 20 µA ‡ A thru H – 0.65 – 0.65 IIL‡ S0 or S1 VCC = 5.5 V, VI = 0.5 V – 1.2 – 1.2 mA IL Any other – 0.6 – 0.6 IOS§ VCC = 5.5 V, VO = 0 –60 –150 –60 –150 mA ICC VCC = 5.5 V, See Note 2 68 95 68 95 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ For I/O ports (QA thru QH), the parameters IIH and IIL include the off-state output current. § Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. NOTE 2: ICC is measured with OE1, OE2, and CLK at 4.5 V. |
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