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SN74LVC16646DL Datasheet(PDF) 8 Page - Texas Instruments |
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SN74LVC16646DL Datasheet(HTML) 8 Page - Texas Instruments |
8 / 9 page SN74LVC16646 16-BIT BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS SCAS318B – NOVEMBER 1993 – REVISED JULY 1995 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION 500 Ω 1.5 V th tsu From Output Under Test CL = 50 pF (see Note A) LOAD CIRCUIT FOR OUTPUTS S1 6 V Open GND 500 Ω Data Input Timing Input 1.5 V 2.7 V 0 V 1.5 V 1.5 V 2.7 V 0 V 2.7 V 0 V 1.5 V 1.5 V tw Input VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING AND NONINVERTING OUTPUTS VOLTAGE WAVEFORMS PULSE DURATION tPLH tPHL tPHL tPLH VOH VOH VOL VOL 1.5 V 1.5 V 2.7 V 0 V 1.5 V 1.5 V Input 1.5 V Output Control Output Waveform 1 S1 at 6 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 3 V 0 V 1.5 V VOL + 0.3 V 1.5 V VOH – 0.3 V [ 0 V 2.7 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES LOW- AND HIGH-LEVEL ENABLING Output Output 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. Figure 2. Load Circuit and Voltage Waveforms |
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