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SN74F2244DW Datasheet(PDF) 3 Page - Texas Instruments |
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SN74F2244DW Datasheet(HTML) 3 Page - Texas Instruments |
3 / 5 page SN74F2244 25- Ω OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS SDFS095B – NOVEMBER 1993 – REVISED JANUARY 1996 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions 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 IIK Input clamp current –18 mA IOH High-level output current –15 mA IOL Low-level output current 12 mA TA Operating free-air temperature 0 70 °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS† MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = – 18 mA – 1.2 V VCC = 4.5 V, IOH = – 3 mA 2.4 2.8 VOH VCC = 4.5 V IOH = – 15 mA 2 2.3 V VCC = 4.75 V, IOH = – 3 mA 2.7 VOL VCC = 4.5 V, IOL = 1 mA 0.2 0.5 V VOL VCC = 4.5 V, IOL = 12 mA 0.5 0.75 V II VCC = 5.5 V, VI = 0.5 V 0.1 mA IOZH VCC = 5.5 V, VO = 7 V 50 µA IOZL VCC = 5.5 V, VO = 2.7 V –50 µA IIH VCC = 5.5 V, VI = 2.7 V 20 µA IIL Any OE input VCC =5 5V VI =0 5V –1 mA IIL Any A input VCC = 5.5 V, VI = 0.5 V – 1.6 mA IOS‡ VCC = 5.5 V, VO = 0 – 100 – 225 mA V5 5 V Outputs high 40 60 ICC VCC = 5.5 V, Outputs open Outputs low 60 90 mA Out uts oen Outputs disabled 60 90 † 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. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 5 V, CL = 50 PF, R1 = 500 Ω, R2 = 500 Ω, TA = 25°C VCC = 4.5 V TO 5.5 V, CL = 50 PF, R1 = 500 Ω, R2 = 500 Ω, TA = MIN TO MAX§ UNIT MIN MAX MIN MAX tPLH A Y 1.5 7 1.5 7 ns tPHL A Y 2.5 8 2 8 ns tPZH OE Y 1.5 9 1 9.5 ns tPZL OE Y 2.5 11.5 2.5 12 ns tPHZ OE Y 1.5 9 1 9.5 ns tPLZ OE Y 1.5 8.5 1.5 9.5 ns § For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. |
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