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74ACT16254DGGR 数据表(PDF) 5 Page - Texas Instruments |
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74ACT16254DGGR 数据表(HTML) 5 Page - Texas Instruments |
5 / 6 page 74ACT16254 16-BIT ADDRESS/DATA MULTIPLEXER WITH 3-STATE OUTPUTS SCAS527A – AUGUST 1995 – NOVEMBER 1995 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION From Output Under Test CL = 50 pF (see Note A) LOAD CIRCUIT S1 7 V Open GND 500 Ω 500 Ω tPHL tPLH PROPAGATION DELAY TIMES Output Control (low-level enabling) Output Waveform 1 S1 at 7 V (see Note B) Output Waveform 2 S1 at GND (see Note B) VOL VOH tPZL tPZH tPLZ tPHZ 1.5 V 1.5 V 1.5 V 1.5 V 3.5 V 3 V 0 V 1.5 V 1.5 V VOH VOL 0 1.5 V VOL + 0.3 V 1.5 V VOH – 0.3 V ≈ 0 V ENABLE AND DISABLE TIMES VOLTAGE WAVEFORMS VOLTAGE WAVEFORMS 3 V Input Output 3 V 0 V 1.5 V 1.5 V tw VOLTAGE WAVEFORMS PULSE DURATION Input th tsu Data Input Timing Input 1.5 V 3 V 0 V 1.5 V 1.5 V 3 V 0 V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES tpd tPLZ/tPZL tPHZ/tPZH Open 7 V GND 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. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPHL and tPLH are the same as tpd. Figure 1. Load Circuit and Voltage Waveforms |
类似零件编号 - 74ACT16254DGGR |
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类似说明 - 74ACT16254DGGR |
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