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PI3C3245QE Datasheet(PDF) 3 Page - Pericom Semiconductor Corporation |
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PI3C3245QE Datasheet(HTML) 3 Page - Pericom Semiconductor Corporation |
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3 / 5 page  3 www.pericom.com PS8162F 08/24/11 All trademarks are property of their respective owners. PI3C3245 2.5V/3.3V, High Bandwidth, Hot Insertion, 8-Bit, 2-Port, Bus Switch Power Supply Characteristics Parameters Description Test Conditions(1) Min Typ (2) Max Units ICC Quiescent Power Supply Current VCC = Max. VIN = GND or VCC 260 500 μA ΔICC Supply Current per Input HIGH VCC = Max. VIN = 3.0V(3) 750 Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at VCC = 3.3V, +25°C ambient. 3. Per TTL driven input (control input only); A and B pins do not contribute to ΔICC. Switching Characteristics over 3.3V Operating Range Parameters Description Test Conditions(1) PI3C3245 Units Com. Min Max tPLH tPHL Propagation Delay(1,2) Ax to Bx CL = 50 pF RL = 500Ω 0.25 ns tPZH tPZL Bus Enable Time BE to Ax or Bx CL = 50 pF RL = 500Ω R = 500Ω 1.5 6.5 tPHZ tPLZ Bus Disable Time BE to Ax or Bx 1.5 5.5 Notes: 1. This parameter is guaranteed but not tested on Propagation Delays. 2. The bus switch contributes no propagational delay other than the RC delay of the On-Resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25 ns for 50 pF load. Since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side. Switching Characteristics over 2.5V Operating Range Parameters Description Test Conditions(1) PI3C3245 Units Com. Min Max tPLH tPHL Propagation Delay(1,2) Ax to Bx CL = 50 pF RL = 500Ω 0.25 ns tPZH tPZL Bus Enable Time BE to Ax or Bx CL = 50 pF RL = 500Ω R = 500Ω 1.5 9.8 tPHZ tPLZ Bus Disable Time BE to Ax or Bx 1.5 8.3 Notes: 1. This parameter is guaranteed but not tested on Propagation Delays. 2. The bus switch contributes no propagational delay other than the RC delay of the On-Resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25 ns for 50 pF load. Since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side. 11-0112 |
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