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54ACT11241 Datasheet(PDF) 4 Page - Texas Instruments |
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54ACT11241 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 5 page 54ACT11241, 74ACT11241 OCTAL BUFFERS/LINE DRIVERS WITH 3STATE OUTPUTS SCAS011B − D2957, JULY 1987 − REVISED APRIL 1993 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001 2−4 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 54ACT11241 74ACT11241 UNIT PARAMETER FROM (INPUT) TO (OUTPUT) MIN TYP MAX MIN MAX MIN MAX UNIT tPLH A Y 1.5 6.6 9 1.5 10.7 1.5 10 tPHL A Y 1.5 6.3 8.5 1.5 9.5 1.5 9.1 tPZH G or G Y 1.5 7.5 11.3 1.5 13 1.5 12.3 ns tPZL G or G Y 1.5 7.4 10.5 1.5 11.9 1.5 11.3 ns tPHZ G or G Y 1.5 7.6 10.6 1.5 11.4 1.5 11 tPLZ G or G Y 1.5 8.2 11.2 1.5 12 1.5 11.7 operating characteristics, VCC = 5 V, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT Cpd Power dissipation capacitance per buffer Outputs enabled CL = 50 pF, f = 1 MHz 27 pF Cpd Power dissipation capacitance per buffer Outputs disabled CL = 50 pF, f = 1 MHz 9 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 C) Output Waveform 2 S1 at GND (see Note C) VOL VOH tPZL tPZH tPLZ tPHZ 1.5 V 1.5 V 1.5 V 1.5 V [ VCC 3 V 0 V 50% VCC 50% VCC VOH VOL 0 V 50% VCC 20% VCC 50% VCC 80% VCC [ 0 V 3 V GND Open Input (see Note B) Output VOLTAGE WAVEFORMS VOLTAGE WAVEFORMS tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 2 × VCC GND TEST S1 NOTES: A. CL includes probe and jig capacitance. B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr = 3 ns, tf = 3 ns. C. 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. D. The outputs are measured one at a time with one input transition per measurement. Figure 1. Load Circuit and Voltage Waveforms |
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