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SN74ALVCH162721DGG データシート(PDF) 8 Page - Texas Instruments |
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SN74ALVCH162721DGG データシート(HTML) 8 Page - Texas Instruments |
8 / 9 page SN74ALVCH162721 3.3-V 20-BIT FLIP-FLOP WITH 3-STATE OUTPUTS SCES055E – DECEMBER 1995 – REVISED JUNE 1999 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION VCC = 2.7 V AND 3.3 V ± 0.3 V tPLH tPHL VOH VOL th tsu From Output Under Test CL = 50 pF (see Note A) LOAD CIRCUIT S1 Open GND 500 Ω 500 Ω Output Control (low-level enabling) Output Waveform 1 S1 at 6 V (see Note B) Output Waveform 2 S1 at GND (see Note B) tPZL tPZH tPLZ tPHZ 2.7 V 0 V VOH VOL 0 V VOL + 0.3 V VOH – 0.3 V 0 V 2.7 V 0 V 0 V tw Input 2.7 V 2.7 V 3 V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES VOLTAGE WAVEFORMS PULSE DURATION VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES Timing Input Data Input Output Input tpd tPLZ/tPZL tPHZ/tPZH Open 6 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 ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns. D. The outputs are measured one at a time with one transition per measurement. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPLH and tPHL are the same as tpd. 6 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 0 V 2.7 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 Figure 3. Load Circuit and Voltage Waveforms |
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