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CDC337NS Datasheet(PDF) 5 Page - Texas Instruments |
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CDC337NS Datasheet(HTML) 5 Page - Texas Instruments |
5 / 12 page CDC337 CLOCK DRIVER WITH 3-STATE OUTPUTS SCAS330B – DECEMBER 1990 – REVISED OCTOBER 1998 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION th tsu From Output Under Test CL = 50 pF (see Note A) LOAD CIRCUIT S1 2 × VCC Open GND 500 Ω 500 Ω TEST tPLH/tPHL tPLZ/tPZL tPHZ/tPZH S1 Open 2 × VCC Open Output Control (low-level enabling) Output Waveform 1 S1 at 2 × VCC (see Note C) Output Waveform 2 S1 at Open (see Note C) VOL VOH tPZL tPZH tPLZ tPHZ 1.5 V 1.5 V 0 V 50% VCC VOL + 0.3 V VOH – 0.3 V ≈ 0 V 3 V Data Input Timing Input 1.5 V 3 V 0 V 1.5 V 1.5 V 3 V 0 V 3 V 0 V 1.5 V 1.5 V tw Input VOLTAGE WAVEFORMS VOLTAGE WAVEFORMS VOLTAGE WAVEFORMS VOLTAGE WAVEFORMS tPLH tPHL Output 1.5 V 1.5 V 3 V 0 V 50% VCC VOH VOL Input 0.8 V 2 V tr tf 0.8 V 2 V ≈ VCC 50% VCC NOTES: A. CL includes probe and jig capacitance. B. 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. C. 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. D. The outputs are measured one at a time with one transition per measurement. Figure 1. Load Circuit and Voltage Waveforms |
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