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SN74CBTU4411GSTR Fiches technique(PDF) 10 Page - Texas Instruments |
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SN74CBTU4411GSTR Fiches technique(HTML) 10 Page - Texas Instruments |
10 / 15 page SN74CBTU4411 11BIT 1OF4 FET MULTIPLEXER/DEMULTIPLEXER 1.8V DDRII SWITCH WITH CHARGE PUMP AND PRECHARGED OUTPUTS SCDS192 − APRIL 2005 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION (Skew and Propagation Delay Times) CL (see Note A) TEST CIRCUIT T1† VDD GND RL RL NOTES: A. CL includes probe and jig capacitance. B. tosk is the difference in output voltage from channel to channel in a specific device. C. tPLH and tPHL are the same as tpd and tesk = |tPLH − tPHL| D. All input pulses are supplied by generators having the following characteristics: ZOS = 50 Ω,rising and falling edge rate is 1 V/ns. E. The outputs are measured one at a time, with one transition per measurement. VG1 VDD DUT VIN VG2 VI TEST RL T1† CL VDD VI tpd 1.8 V ± 0.1 V VDD VO 150 Ω 6 pF tosk tesk 1.8 V ± 0.1 V 1.8 V ± 0.1 V VDD VDD 150 Ω 150 Ω see Waveform 6 pF 6 pF † T1 is an external terminal. ZO = 40 Ω tPLH tPHL VREF +0.35 V VREF −0.35 V VOH VOL Input (H or D) VOLTAGE WAVEFORMS (tesk and tpd) (see Note C) Output (D or H) 50% 50% 50% 50% Skew SKEW BETWEEN ANY TWO OUTPUTS (tosk) (see Note B) VOH VOL VOH VOL ZO = 40 Ω see Waveform 50 Ω 120 Ω ZO = 40 Ω 2 y VDD see Waveform VREF +0.35 V VREF −0.35 V Input (H or D) 50% 50% Output 1 (D or H) Output 2 (D or H) Figure 2. Test Circuit and Voltage Waveforms |
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