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參數資料
| 型號： | PI3C34X484 |
| 英文描述： | Digital Switch | 3.3V. High-Bandwidth. 40-Bit Bus Switch LFBGA packaging |
| 中文描述： | 數字開關| 3.3。高帶寬。 40位總線開關采用LFBGA封裝 |
| 文件頁數： | 3/4頁 |
| 文件大小： | 242K |
| 代理商： | PI3C34X484 |
PI3C3384/PI3C32384 (25ohm)
2.5V/3.3V, High Bandwidth,
Hot Insertion, 10-Bit, 2-Port BusSwitch
3
PS8161C 02/04/00
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PI3C3384/PI3C32384 Switching Characteristics over 3.3V Operating Range
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at V
CC
= 3.3V, +25°C ambient.
3. Per TTL driven input (control inputs only); A and B pins do not contribute to I
CC
.
4. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified
frequency. The A and B inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is
guaranteed by design.
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Power Supply Characteristics
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PI3C3384/PI3C32384 Switching Characteristics over 2.5V Operating Range
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. 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 0.25ns for 50pF 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.
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