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SN54F244 Datasheet(PDF) 3 Page - Texas Instruments |
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SN54F244 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 21 page SN54F244, SN74F244 OCTAL BUFFERS/DRIVERS WITH 3STATE OUTPUTS SDFS063A − D2932, MARCH 1987 − REVISED OCTOBER 1993 2−3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 recommended operating conditions SN54F244 SN74F244 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 −12 −15 mA IOL Low-level output current 48 64 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 SN54F244 SN74F244 UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = − 18 mA − 1.2 − 1.2 V IOH = − 3 mA 2.4 3.3 2.4 3.3 VOH VCC = 4.5 V IOH = − 12 mA 2 3.2 V VOH VCC = 4.5 V IOH = − 15 mA 2 3.1 V VCC = 4.75 V, IOH = − 3 mA 2.7 VOL VCC = 4.5 V IOL = 48 mA 0.38 0.55 V VOL VCC = 4.5 V IOL = 64 mA 0.42 0.55 V IOZH VCC = 5.5 V, VO = 2.7 V 50 50 µA IOZL VCC = 5.5 V, VO = 0.5 V −50 −50 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 OE VCC = 5.5 V, VI = 0.5 V −1 −1 mA IIL Any A VCC = 5.5 V, VI = 0.5 V − 1.6 − 1.6 mA IOS‡ VCC = 5.5 V, VO = 0 − 100 − 225 − 100 − 225 mA VCC = 5.5 V, Outputs high 40 60 40 60 ICC VCC = 5.5 V, Outputs open Outputs low 60 90 60 90 mA ICC Outputs open Outputs disabled 60 90 60 90 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. |
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