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SN74LVCC4245A Datasheet(PDF) 8 Page - Texas Instruments |
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SN74LVCC4245A Datasheet(HTML) 8 Page - Texas Instruments |
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8 / 10 page  SN74LVCC4245A OCTAL DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE OUTPUT VOLTAGE AND 3-STATE OUTPUTS SCAS584F – NOVEMBER 1996 – REVISED AUGUST 1998 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION FOR B TO A VCCA = 4.5 V TO 5.5 V AND VCCB = 2.7 V TO 3.6 V From Output Under Test CL = 50 pF (see Note A) LOAD CIRCUIT S1 2 × VCCA Open GND 500 Ω 500 Ω 3 V 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 × VCCA (see Note B) Output Waveform 2 S1 at GND (see Note B) VOL VOH tPZL tPZH tPLZ tPHZ 1.5 V 1.5 V VCCA 0 V VOL + 0.3 V VOH – 0.3 V [ 0 V 3 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES LOW- AND HIGH-LEVEL ENABLING Output tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 2 × VCCA 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. 1.5 V 1.5 V Input 3 V 0 V 1.5 V Input 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V Figure 3. Load Circuit and Voltage Waveforms |
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