參數(shù)資料
型號: IDTQS32X2384Q18
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 總線收發(fā)器
英文描述: CBT/FST/QS/5C/B SERIES, DUAL 10-BIT DRIVER, TRUE OUTPUT, PDSO48
封裝: QVSOP-48
文件頁數(shù): 4/5頁
文件大?。?/td> 526K
代理商: IDTQS32X2384Q18
4
INDUSTRIALTEMPERATURERANGE
IDTQS32X2384
HIGH-SPEED CMOS 20-BIT BUS SWITCH
NOTES:
1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Per TTL driven input (VIN = 3.4V, control inputs only). A and B pins do not contribute to
Icc.
3. This current applies to the control inputs only and represents 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 guaranteed but not production tested.
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
TestConditions(1)
Max.
Unit
ICCQ
Quiescent Power Supply Current
VCC = Max., VIN = GND or VCC, f = 0
3
mA
ICC
Power Supply Currentper Input HIGH(2)
VCC = Max., VIN = 3.4V, f = 0
2.5
mA
ICCD
Dynamic Power Supply Current per MHz(3) VCC = Max., A and B Pins Open
0.25
mA/MHz
Control Input Toggling @ 50% Duty Cycle
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40°C to +85°C
Symbol
Parameter
Min.(1)
Typ.
Max.
Unit
tPLH
DataPropagationDelay(2,4)
1.25(3)
ns
tPHL
Ax to Bx, Bx to Ax
tPZL
Switch Turn-On Delay
1.5
7.5
ns
tPZH
BEx
to Ax, Bx
tPLZ
SwitchTurn-OffDelay(2)
1.5
5.5
ns
tPHZ
BEx
to Ax, Bx
NOTES:
1. Minimums are guaranteed but not production tested.
2. This parameter is guaranteed but not production tested.
3. The time constant for the switch alone is of the order of 1.25ns at CL = 50pF.
4. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. Since this time constant is much smaller
than the rise and fall times of typical driving signals, it adds very little propagation delay to the system. Propagation 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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