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IDTQS3L383 데이터시트 PDF




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부품번호 IDTQS3L383 기능
기능 QUICKSWITCH PRODUCTS HIGH-SPEED LOW POWER 10-BIT BUS EXCHANGE SWITCH
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IDTQS3L383 데이터시트, 핀배열, 회로
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IDTQS3L383
HIGH-SPEED LOW POWER 10-BIT BUS EXCHANGE SWITCH
INDUSTRIALTEMPERATURERANGE
QUICKSWITCH® PRODUCTS
HIGH-SPEED LOW POWER
10-BIT BUS EXCHANGE SWITCH
IDTQS3L383
FEATURES:
• Enhanced N channel FET with no inherent diode to Vcc
• 5bidirectional switches connect inputs to outputs
• Zero propagation delay, zero added ground bounce
• Ultra low power with 0.2µA typical Icc
• Undershoot clamp diodes on all switch and control inputs
• Bus exchange allows nibble swap
• Available in QSOP package
APPLICATIONS:
• Hot-swapping, hot-docking
• Voltage translation (5V to 3.3V)
• Resource sharing
• Crossbar switching
DESCRIPTION:
The QS3L383 provides ten high-speed CMOS TTL-compatible bus
switches. The low ON resistance of the QS3L383 allows inputs to be
connected to outputs without adding propagation delay and without gener-
ating additional ground bounce noise. The Bus Enable (BE) signal turns
the switches on. The Bus Exchange (BX) signal provides nibble swap of
the AB and CD pairs of signals. This exchange configuration allows byte
swapping of buses in systems. It can also be used as a 5-wide 2-to-1
multiplexer and to create low delay barrel shifters, etc.
The QS3L383 is characterized for operation at -40°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
A0
B0
A4
B4
BX
BE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 2004 Integrated Device Technology, Inc.
1
C0
D0
C4
D4
JANUARY 2004
DSC-5574/2




IDTQS3L383 pdf, 반도체, 판매, 대치품
IDTQS3L383
HIGH-SPEED LOW POWER 10-BIT BUS EXCHANGE SWITCH
INDUSTRIALTEMPERATURERANGE
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
Test Conditions(1)
ICCQ Quiescent Power Supply Current
VCC = Max., VIN = GND or VCC, f = 0
ICC Power Supply Current per Input HIGH(2)
VCC = Max., VIN = 3.4V, f = 0
ICCD Dynamic Power Supply Current per MHz (3) VCC = Max., A - D Pins Open,
Control Inputs Toggling @ 50% Duty Cycle
Typ. Max. Unit
0.2 3 µA
1.5 mA
0.25 mA/MHz
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-D 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-D inputs generate no significant
AC or DC currents as they transition. This parameter is guaranteed but not production tested.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40°C to +85°C, VCC = 5V ± 5%
CLOAD = 50pF, RLOAD = 500unless otherwise noted.
Symbol
Parameter
Min. (1)
Typ.
tPLH DataPropagationDelay(2)
tPHL AxBx to CxDx, CxDx to AxBx

tPZL Switch Turn-On Delay
tPZH BE to Ax, Bx, Cx, Dx
tPLZ Switch Turn-Off Delay(2)
tPHZ BE to Ax, Bx, Cx, Dx
1.5
1.5
tBX Switch Multiplex Delay
BX to Ax, Bx, Cx, Dx
1.5
Max.
0.25(3)
6.5
5.5
6.5
Unit
ns
ns
ns
ns
NOTES:
1. Minimums are guaranteed but not production tested.
2. This parameter is guaranteed but not production tested.
3. The bus switch contributes no propagation 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 at CL = 50pF. 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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IDTQS3L383

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