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IDTQS34XR245 데이터시트 PDF




Integrated Device에서 제조한 전자 부품 IDTQS34XR245은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 IDTQS34XR245 기능
기능 QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH 32-BIT LOW RESISTANCE MULTIWIDTHTM BUS SWITCHES
제조업체 Integrated Device
로고 Integrated Device 로고


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IDTQS34XR245 데이터시트, 핀배열, 회로
IDTQS34XR245
HIGH SPEED CMOS QUICKSWITCH 32-BIT LOW RESISTANCE BUS SWITCH
INDUSTRIALTEMPERATURERANGE
QUICKSWITCHPRODUCTS
HIGH-SPEED CMOS QUICK-
SWITCH 32-BIT LOW RESISTANCE
MULTIWIDTHTM BUS SWITCHES
IDTQS34XR245
FEATURES:
• Enhanced N channel FET with no inherent diode to Vcc
• 2.5bidirectional switches connect inputs to outputs
• Zero propagation delay, zero ground bounce
• QS34XR245Q3 is a 32-bit version of QS3R245
• Flow-through pinout for easy layout
• Undershoot clamp diodes on all switch and control inputs
• TTL-compatible control inputs
• Available in 80-pin Millipaq package
APPLICATIONS:
• Low resistance applications
• Hot-swapping, hot-docking (low resistance for PCI and
Compact PCI applications)
• Bus switching, isolation
• Logic replacement (data processing)
• Capacitance reduction and isolation
• Power conservation
• Clock gating
• Voltage translation (5V to 3.3V)
FUNCTIONAL BLOCK DIAGRAM
A0 A1
A2 A3 A4 A5 A6 A7
DESCRIPTION:
The QS34XR245 is a member of the MultiWidthTM family of QuickSwitch
devices and provides a set of 32 high-speed low resistance CMOS compatible
bus switches in a flow-through pin out.
This device is available in the MillipaQ package, the worlds first small outline
32-bit solution. The low on-resistance of the QS34XR245 allows inputs to be
connected to outputs without adding propagation delay and without generating
additional ground bounce noise. When Output Enable (OEx) is low, the switches
are turned on, connecting bus A to bus B. When OEx is high, the switches are
turned off.
The QS34XR245 is ideally suited for 32/64 bit applications where board
space is at a premium. The low resistance of QS34XR245 makes it ideal for PCI
hot docking application.
QuickSwitch devices provide an order of magnitude faster speed than
conventional logic devices.
A16 A17 A18 A19 A20 A21 A22 A23
OE1
OE3
OE2
B0 B1
B2 B3 B4 B5 B6 B7
A8 A9 A10 A11 A12 A13 A14 A15
OE4
B16 B17 B18 B19 B20 B21 B22 B23
A24 A25 A26 A27 A28 A29 A30 A31
B8 B9 B10 B11 B12 B13 B14 B15
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 1999 Integrated Device Technology, Inc.
1
B24 B25 B26 B27 B28 B29 B30 B31
NOVEMBER 1999
DSC-5544/1




IDTQS34XR245 pdf, 반도체, 판매, 대치품
IDTQS34XR245
HIGH SPEED CMOS QUICKSWITCH 32-BIT LOW RESISTANCE BUS SWITCH
INDUSTRIALTEMPERATURERANGE
POWER SUPPLY CHARACTERISTICS
Symbol Parameter
Test Conditions(1)
Max. Unit
ICCQ Quiescent Power Supply Current
VCC = Max., VIN = GND or Vcc, f = 0
ICC Power Supply Current per Control Input HIGH (2) VCC = Max., VIN = 3.4V, f = 0
ICCD Dynamic Power Supply Current per MHz(3)
VCC = Max., A and B pins open
12 µA
2.5 mA
0.25 mA/MHz
Control Inputs Toggling at 50% Duty Cycle
NOTES:
1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Per TLL 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.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40°C to +85°C, VCC = 5.0V ± 10%;
CLOAD = 50pF, RLOAD = 500unless otherwise noted.
Symbol
Parameter
tPLH DataPropagationDelay(2,3)
Min. (1)
Typ. Max. Unit
— 0.12 ns
tPHL Ax to/from Bx
tPZL Switch Turn-on Delay
0.5 — 5.6 ns
tPZH OE to Ax/Bx
tPLZ Switch Turn-off Delay (2)
0.5 — 4.5 ns
tPHZ OE to Ax/Bx
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 0.12ns for CL = 30pF. 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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관련 데이터시트

부품번호상세설명 및 기능제조사
IDTQS34XR245

QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH 32-BIT LOW RESISTANCE MULTIWIDTHTM BUS SWITCHES

Integrated Device
Integrated Device
IDTQS34XR245Q3

QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH 32-BIT LOW RESISTANCE MULTIWIDTHTM BUS SWITCHES

Integrated Device
Integrated Device

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