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SN74AC241NSR Datasheet(PDF) 5 Page - Texas Instruments |
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SN74AC241NSR Datasheet(HTML) 5 Page - Texas Instruments |
5 / 13 page SN54AC241, SN74AC241 OCTAL BUFFERS/DRIVERS WITH 3STATE OUTPUTS SCAS513E − JUNE 1995 − REVISED OCTOBER 2003 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER FROM TO TA = 25°C SN54AC241 SN74AC241 UNIT PARAMETER FROM (INPUT) TO (OUTPUT) MIN TYP MAX MIN MAX MIN MAX UNIT tPLH A Y 1.5 5 7 1 9.5 1 7.5 ns tPHL A Y 1.5 4.5 7 1 9 1 7.5 ns tPZH OE or OE Y 1.5 5.5 9 1 10 1 9.5 ns tPZL OE or OE Y 1.5 5.5 9 1 10 1 9.5 ns tPHZ OE or OE Y 1.5 6.5 10 1 11.5 1 10.5 ns tPLZ OE or OE Y 1.5 6 10 1 11.5 1 10.5 ns operating characteristics, VCC = 5 V, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT Cpd Power dissipation capacitance per buffer/driver CL = 50 pF, f = 1 MHz 45 pF PARAMETER MEASUREMENT INFORMATION From Output Under Test CL = 50 pF (see Note A) LOAD CIRCUIT S1 2 × VCC 500 Ω 500 Ω tPLH tPHL Output Control (low-level enabling) Output Waveform 1 S1 at 2 × VCC (see Note B) Output Waveform 2 S1 at Open (see Note B) VOL VOH tPZL tPZH tPLZ tPHZ 50% VCC 50% VCC 50% VCC 50% VCC ≈VCC VCC 0 V 50% VCC 50% VCC VOH VOL 0 V 50% VCC VOL + 0.3 V 50% VCC VOH − 0.3 V ≈0 V VCC Open Input Output VOLTAGE WAVEFORMS VOLTAGE WAVEFORMS tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 2 × VCC Open TEST S1 NOTES: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns. D. The outputs are measured one at a time with one input transition per measurement. Figure 1. Load Circuit and Voltage Waveforms PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. |
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