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IDTQS3125



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IDT
QS3125 데이터시트, 핀배열, 회로
IDTQS3125
HIGH-SPEED CMOS QUADRUPLE BUS SWITCH WITH INDIVIDUAL ENABLES
INDUSTRIALTEMPERATURERANGE
QUICKSWITCH® PRODUCTS
HIGH-SPEED CMOS
QUADRUPLE BUS SWITCH WITH
INDIVIDUAL ACTIVE LOW ENABLES
IDTQS3125
FEATURES:
• Enhanced N channel FET with no inherent diode to Vcc
• Pin compatible with the 74’125 function
• Zero propagation delay, zero added ground bounce
• Undershoot clamp diodes on all switch and control inputs
• Available in QSOP and SOIC packages
APPLICATIONS:
• Hot-swapping, hot-docking
• Voltage translation (5V to 3.3V)
• Power conservation
• Capacitance reduction and isolation (mass storage, work
stations)
• Logic replacement (data processing)
• Clock gating
• Bus isolation
DESCRIPTION:
The QS3125 provides a set of four high-speed low resistance CMOS
switches connecting inputs to outputs without propagation delay and without
generating additional ground bounce noise. Individual enables (OE) are
used to turn on the switches. The QS3125 is ideal for signal and control
switching since the device adds no noise, ground bounce, propagation
delay, or significant power consumption to the system. The QS3125 can also
be used for analog switching applications such as video.
QuickSwitch devices provide an order of magnitude faster speed than
conventional logic devices.
The QS3125 is characterized for operation at -40°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
1O E
2O E
3O E
4O E
1A 2A 3A 4A
1Y 2Y 3Y 4Y
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 1999 Integrated Device Technology, Inc.
1
DECEMBER 1999
DSC-5598/1
Free Datasheet http://www.datasheetlist.com/


QS3125 데이터시트, 핀배열, 회로
IDTQS3125
HIGH-SPEED CMOS QUADRUPLE BUS SWITCH WITH INDIVIDUAL ENABLES
INDUSTRIALTEMPERATURERANGE
PIN CONFIGURATION
NC
1OE
1A
1Y
2OE
2A
2Y
GND
1
2
3
4
5
6
7
8
16 VCC
15 4OE
14 4A
13 4Y
12 3OE
11 3A
10 3Y
9 NC
QSOP
TOP VIEW
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Description
Max
VTERM(2) Supply Voltage to Ground
–0.5 to +7
VTERM(3) DC Switch Voltage VS
–0.5 to +7
VTERM(3) DC Input Voltage VIN
–0.5 to +7
VAC AC Input Voltage (pulse width 20ns)
–3
IOUT DC Output Current
120
PMAX Maximum Power Dissipation (TA = 85°C)
0.5
TSTG Storage Temperature
–65 to +150
Unit
V
V
V
V
mA
W
°C
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
2. VCC terminals.
3. All terminals except VCC .
CAPACITANCE (TA = +25°C, f = 1MHz, VIN = 0V, VOUT = 0V)
Pins Typ. Max.(1) Unit
OE (Inputs)
3 5 pF
Quickswitch Channels (Switch OFF)
5
7 pF
NOTE:
1. This parameter is guaranteed but not production tested.
1OE
1A
1Y
2OE
2A
2Y
GND
1
2
3
4
5
6
7
14 VCC
13 4OE
12 4A
11 4Y
10 3OE
9 3A
8 3Y
SOIC
TOP VIEW
PIN DESCRIPTION
Pin Names
I/O
Description
1A - 4A I/O Bus A
1Y - 4Y I/O Bus Y
1OE - 4OE
I
Bus Switch Enable
FUNCTION TABLE(1)
xOE xA
LH
LL
HX
xY
H
L
X
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Function
Connect
Connect
Disconnect
2
Free Datasheet http://www.datasheetlist.com/




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