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74LVCC3245ADBQRE4 Arkusz danych(PDF) 9 Page - Texas Instruments |
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74LVCC3245ADBQRE4 Arkusz danych(HTML) 9 Page - Texas Instruments |
9 / 18 page www.ti.com PARAMETER MEASUREMENT INFORMATION FOR B PORT From Output Under Test CL = 50 pF (see Note A) LOAD CIRCUIT S1 2 × VCC Open GND 500 Ω 500 Ω VCC 0 V tw VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES NONINVERTING OUTPUTS VOLTAGE WAVEFORMS PULSE DURATION tPLH tPHL VOH VOL Output Control Output Waveform 1 S1 at 2 × VCC (see Note B) Output Waveform 2 S1 at Open (see Note B) VOL VOH tPZL tPZH tPLZ tPHZ VCC 0 V VOL + 0.3 V VOH - 0.3 V ≈0 V 2.7 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES LOW- AND HIGH-LEVEL ENABLING B-Port Output tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 2 × VCC Open 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. All parameters and waveforms are not applicable to all devices. 50% VCC 50% VCC B-Port Input VCC 0 V Input 50% VCC 50% VCC 50% VCC 50% VCC 1.5 V 1.5 V 1.5 V 1.5 V SN74LVCC3245A OCTAL BUS TRANSCEIVER WITH ADJUSTABLE OUTPUT VOLTAGE AND 3-STATE OUTPUTS SCAS585O – NOVEMBER 1996 – REVISED MARCH 2005 V CCA = 3.6 V and vCCB = 5.5 V Figure 3. Load Circuit and Voltage Waveforms 9 |
Podobny numer części - 74LVCC3245ADBQRE4 |
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Podobny opis - 74LVCC3245ADBQRE4 |
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