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PI74LVC4245AL Datasheet(PDF) 7 Page - Pericom Semiconductor Corporation |
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PI74LVC4245AL Datasheet(HTML) 7 Page - Pericom Semiconductor Corporation |
7 / 9 page PI74LVC4245A 8-Bit Dual Supply Bus Transceiver with 3-State Outputs 7 P-0.2 08/11/03 ADVANCE INFORMATION Load Circuit Voltage Waveforms Propagation Delay Times Voltage Waveforms Enable and Disable Times 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 impulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. D. The outputs are measured one at a time with one transition per measurement. Figure 2. Load Circuit and Voltage Waveforms 500Ω 500 Ω 7V Open GND S1 From Output Under Test CL = 50pF (See Note A) 50 Input tPLH tPHL 0V Output VOH VOL 1.5V 1.5V 3V 1.5V 1.5V tPZL Output Control 0V 1.5V 1.5V 1.5V tPLZ tPHZ VOL 3.5V 0V tPZH +0.3V –0.3V Output Waveform 1 S1 at 7V (see Note B) Output Waveform 2 S1 at GND (see Note B) VOH VOH VOL 3V 1.5V PARAMETER MEASUREMENT INFORMATION FOR A TO B PORT VCCA = 4.5V to 5.5V and VCCB = 2.7V to 3.6V Test S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 7V GND |
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