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74AC16652 데이터시트(PDF) 9 Page - Texas Instruments |
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74AC16652 데이터시트(HTML) 9 Page - Texas Instruments |
9 / 10 page 54AC16652, 74AC16652 16-BIT BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS SCAS242A – MARCH 1990 – REVISED APRIL 1996 9 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 operating characteristics, VCC = 5 V, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT C d Power dissipation capacitance per transceiver Outputs enabled CL =50 pF f=1MHz 57 pF Cpd Power dissipation capacitance per transceiver Outputs disabled CL = 50 pF, f = 1 MHz 13 pF PARAMETER MEASUREMENT INFORMATION 50% VCC 50% 50% 50% VCC VCC 0 V 0 V th tsu VOLTAGE WAVEFORMS Data Input tPLH tPHL tPHL tPLH VOH VOH VOL VOL 50% 50% VCC 0 V 50% VCC 50% VCC Input Out-of-Phase Output In-Phase Output Timing Input 50% VCC VOLTAGE WAVEFORMS From Output Under Test CL = 50 pF (see Note A) LOAD CIRCUIT S1 2 × VCC 500 Ω 500 Ω Output Control (low-level enabling) Output Waveform 1 S1 at 2 × VCC (see Note B) Output Waveform 2 S1 at GND (see Note B) VOL VOH tPZL tPZH tPLZ tPHZ 50% 50% [ VCC 0 V 50% VCC 20% VCC 50% VCC 80% VCC [ 0 V VCC GND Open VOLTAGE WAVEFORMS tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 2 × VCC GND TEST S1 VCC 0 V 50% 50% tw VOLTAGE WAVEFORMS Input 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 = 3 ns, tf = 3 ns. D. The outputs are measured one at a time with one input transition per measurement. Figure 2. Load Circuit and Voltage Waveforms |
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