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SN74BCT756DW Fiches technique(PDF) 4 Page - Texas Instruments |
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SN74BCT756DW Fiches technique(HTML) 4 Page - Texas Instruments |
4 / 5 page SN74BCT756 OCTAL BUFFER/DRIVER WITH OPEN-COLLECTOR OUTPUTS SCBS056B – OCTOBER 1990 – REVISED JULY 1997 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION tPLH tPHL tPHL tPLH VOH VOH VOL VOL 3 V 0 V Input Out-of-Phase Output In-Phase Output VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES Output Control (low-level enable) High-Level Pulse Output Waveform 2 (see Note B) VOL VOH tPZL tPZH tPLZ tPHZ 3.5 V 0 V 0 V 3 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS 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 ≤ 10 MHz, tr =tf ≤ 2.5 ns, duty cycle = 50%. D. The outputs are measured one at a time with one input transition per measurement. 0.3 V 0.3 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 0 V 0 V th tsu VOLTAGE WAVEFORMS SETUP AND HOLD TIMES Data Input Timing Input 3 V 3 V 1.5 V 1.5 V 1.5 V CL (see Note A) LOAD CIRCUIT VOLTAGE WAVEFORMS PULSE DURATION 3 V 0 V 1.5 V 1.5 V 3 V 0 V 1.5 V 1.5 V Low-Level Pulse tw From Output Under Test 7 V (tPZL, tPLZ, O.C.) Open (all others) Test Point R2 RL = R1 = R2 S1 R1 Output Waveform 1 (see Note B) Figure 1. Load Circuit and Voltage Waveforms |
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Description similaire - SN74BCT756DW |
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