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Integrated Device Technology Electronic Components Datasheet

IDTQS32XV245 Datasheet

QUICKSWITCH-R PRODUCTS 3.3V HIGH SPEED DOUBLE - DOUBLEWIDTH

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IDTQS32XV245
3.3V HIGH SPEED DOUBLE-WIDTH BUS SWITCH
QUICKSWITCH® PRODUCTS
3.3V HIGH SPEED DOUBLE-
WIDTH BUS SWITCH
INDUSTRIALTEMPERATURERANGE
IDTQS32XV245
FEATURES:
• 5bidirectional switches connect inputs to outputs
• Pin compatibility with QS3245
• 250ps propagation delay
• Undershoot clamp diodes on all switch and control inputs
• LVTTL-compatible control inputs
• Available in 40-pin QVSOP package
www.DataSheet4U.com
APPLICATIONS:
• 3.3V to 2.5V Voltage translation
• 2.5V to 1.8V Voltage translation
• PCI bus isolation hot swap
FUNCTIONAL BLOCK DIAGRAM
DESCRIPTION:
The QS32XV245 is a 16-bit high speed bus switch controlled by LVTTL-
compatible active low enable signal. When closed, the switches exhibit near zero
propagation delay without generating additional ground bounce or switching
noise.
The QS32XV245 is specially designed for direct interface between 3.3V and
2.5V devices without any external components. When operating from a 3.3V
supply,thelogichighlevelattheswitchoutputisclampedto2.5Vwhentheswitch
input signal exceeds 2.5V. This device can be used for switching 2.5V buses
without signal attenuation. The ON resistance at 3.3V VCC is less than 5typical,
providing near zero propagation delay through the switch. Absence of DC path
from switch I/O pins to VCC or ground makes QS32XV245 an ideal device for
hot swapping applications.
The QS32XV245 is characterized for operation from -40°C to +85°C.
A0 A1 A2 A3 A4 A5 A6 A7
OE1
B0 B1 B2 B3 B4 B5 B6 B7
A8 A9 A10 A11 A12 A13 A14 A15
OE2
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
NOVEMBER 1999
DSC-5579/1


Integrated Device Technology Electronic Components Datasheet

IDTQS32XV245 Datasheet

QUICKSWITCH-R PRODUCTS 3.3V HIGH SPEED DOUBLE - DOUBLEWIDTH

No Preview Available !

IDTQS32XV245
3.3V HIGH SPEED DOUBLE-WIDTH BUS SWITCH
PIN CONFIGURATION
NC 1
A0 2
A1 3
A2 4
A3 5
A4 6
A5 7
www.DataSheAe6t4U.com8
A7
GND
NC
A8
A9
A10
9
10
11
12
13
14
A11
A12
A13
A14
A15
GND
15
16
17
18
19
20
40 VCC
39 OE1
38 B0
37 B1
36 B2
35 B3
34 B4
33 B5
32 B6
31 B7
30 VCC
29 OE2
28 B8
27 B9
26 B10
25 B11
24 B12
23 B13
22 B14
21 B15
QVSOP
TOP VIEW
INDUSTRIALTEMPERATURERANGE
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Description
Max
VTERM(2) Supply Voltage to Ground
–0.5 to +4.6
VTERM(3) DC Switch Voltage Vs
–0.5 to +4.6
VTERM(3) DC Input Voltage VIN
–0.5 to +4.6
VAC AC Input Voltage (pulse width 20ns)
–3
IOUT DC Output Current
120
PMAX Maximum Power Dissipation (TA = 85°C)
0.6
TSTG Storage Temperature
–65 to +150
Unit
V
V
V
V
mA
W
°C
NOTE:
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 = 1.0MHZ, VIN = 0V, VOUT = 0V)
Pins
Control Pins
Quickswitch Channels (Switch OFF)
Typ.
4
5
Max.(1)
6
7
NOTE:
1. This parameter is measured at characterization but not tested.
Unit
pF
pF
PIN DESCRIPTION
Pin Names
OE OutputEnable
An, Bn
Data I/Os
Description
FUNCTION TABLE(1)
OE1 OE2
HH
LH
HL
LL
A0 - A7
Z
B0 - B7
Z
B0 - B7
A8 - A15
Z
Z
B8 - B15
B8 - B15
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
Z = High-Impedance
Function
Disconnect
Connect
Connect
Connect
2


Part Number IDTQS32XV245
Description QUICKSWITCH-R PRODUCTS 3.3V HIGH SPEED DOUBLE - DOUBLEWIDTH
Maker Integrated Device Technology
Total Page 7 Pages
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