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IDTQS3383
HIGH-SPEED CMOS 10-BIT BUS EXCHANGE SWITCH INDUSTRIAL TEMPERATURE RANGE
OCTOBER 2011
2011 Integrated Device Technology, Inc. DSC-5571/5c
INDUSTRIAL TEMPERATURE RANGE
FEATURES:
• Enhanced N channel FET with no inherent diode to Vcc
•5
ΩΩ
ΩΩ
Ω bidirectional switches connect inputs to outputs
• Zero propagation delay, zero added ground bounce
• Undershoot clamp diodes on all switch and control inputs
• Bus exchange allows nibble swap
• Available in QSOP package
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
APPLICATIONS:
• Hot-swapping, hot-docking
• Voltage translation (5V to 3.3V)
• Resource sharing
• Crossbar switching
IDTQS3383
FUNCTIONAL BLOCK DIAGRAM
QUICKSWITCH® PRODUCTS
HIGH-SPEED CMOS 10-BIT
BUS EXCHANGE SWITCH
DESCRIPTION:
The QS3383 provides ten high-speed CMOS TTL-compatible bus
switches. The low ON resistance of the QS3383 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 QS3383 is characterized for operation at -40°C to +85°C.
A4 C4
D4
B4
BX
BE
A0 C0
D0
B0
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INDUSTRIAL TEMPERATURE RANGE
IDTQS3383
HIGH-SPEED CMOS 10-BIT BUS EXCHANGE SWITCH
PIN CONFIGURATION
Symbol Description Max Unit
VTERM(2) Supply Voltage to Ground –0.5 to +7 V
VTERM(3) DC Switch Voltage VS–0.5 to +7 V
VTERM(3) DC Input Voltage VIN –0.5 to +7 V
VAC AC Input Voltage (pulse width ≤20ns) –3 V
IOUT DC Output Current 120 mA
PMAX Maximum Power Dissipation (TA = 85°C) 0.5 W
TSTG Storage Temperature –65 to +150 °C
ABSOLUTE MAXIMUM RATINGS(1)
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Z = High-Impedance
BE BX A0 - A4B0 - B4Function
H X Hi-Z Hi-Z Disconnect
LLC0 - C4D0 - D4Connect
LH D
0 - D4C0 - C4Exchange
FUNCTION TABLE(1)
Pins Typ. Max. (1) Unit
Control Inputs 3 5 pF
Quickswitch Channels (Switch OFF) 5 7 pF
CAPACITANCE (TA = +25°C, f = 1MHz, VIN = 0V, VOUT = 0V)
NOTE:
1. This parameter is guaranteed but not production tested.
Pin Names I/O Description
A0 - A4, B0 - B4I/O A and B Buses
C0 - C4, D0 - D4I/O C and D Buses
BE I Bus Switch Enable
BX I Bus Exchange
PIN DESCRIPTION
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 .
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
BE
C0
A0
B0
D0
C1
A1
B1
D1
C2
A2
GND
V
CC
D4
B4
A4
C4
D3
B3
A3
C3
D2
B2
BX
QSOP
TOP VIEW
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IDTQS3383
HIGH-SPEED CMOS 10-BIT BUS EXCHANGE SWITCH INDUSTRIAL TEMPERATURE RANGE
TYPICAL ON RESISTANCE vs VIN AT VCC = 5V
RON
(ohms)
VIN
(Volts)
Symbol Parameter Test Conditions Min. Typ.(1) Max. Unit
VIH Input HIGH Voltage Guaranteed Logic HIGH for Control Pins 2 — — V
VIL Input LOW Voltage Guaranteed Logic LOW for Control Pins — — 0.8 V
IIN Input Leakage Current (Control Inputs) 0V ≤ VIN ≤ VCC — 0.01 ±1 μA
IOZ Off-State Current (Hi-Z) 0V ≤ VOUT ≤ VCC, Switches OFF — 0.01 ±1 μA
RON Switch ON Resistance(2) VCC = Min., VIN = 0V, ION = 30mA — 6 8 Ω
VCC = Min., VIN = 2.4V, ION = 15mA — 12 17
VPPass Voltage(3) VIN = VCC = 5V, IOUT = -5μA 3.7 4 4.2 V
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: TA = –40°C to +85°C, VCC = 5V ± 5%
NOTES:
1. Typical values are at VCC = 5V and TA = 25°C.
2. RON is guaranteed but not production tested.
3. Pass voltage is guaranteed but not production tested.
16
14
12
10
8
6
4
2
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
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INDUSTRIAL TEMPERATURE RANGE
IDTQS3383
HIGH-SPEED CMOS 10-BIT BUS EXCHANGE 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, B,C, and D pins do not contribute to ΔIcc.
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 Test Conditions(1) Max. Unit
ICCQ Quiescent Power Supply Current VCC = Max., VIN = GND or VCC, f = 0 1.5 mA
ΔICC Power Supply Current per 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, Control Inputs Toggling @ 50% Duty Cycle 0.25 mA/MHz
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40°C to +85°C, VCC = 5V ± 5%
CLOAD = 50pF, RLOAD = 500Ω unless otherwise noted.
Symbol Parameter Min. (1) Typ. Max. Unit
tPLH Data Propagation Delay(2) ⎯⎯0.25(3) ns
tPHL AxBx to CxDx, CxDx to AxBx
tPZL Switch Turn-On Delay 1.5 ⎯6.5 ns
tPZH BE to Ax, Bx, Cx, Dx
tPLZ Switch Turn-Off Delay(2) 1.5 ⎯5.5 ns
tPHZ BE to Ax, Bx, Cx, Dx
tBX Switch Multiplex Delay 1.5 ⎯6.5 ns
BX to Ax, Bx, Cx, Dx
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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IDTQS3383
HIGH-SPEED CMOS 10-BIT BUS EXCHANGE SWITCH INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
QS XXXXX XX
Package
Device Type
Blank Industrial (-40°C to +85°C)
Quarter Size Outline Package - Green
QG
3383 High Speed CMOS 10-Bit Bus Exchange Switch
X
Process
X
Blank
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Tube or Tray
Tape and Reel
CORPORATE HEADQUARTERS for SALES: for Tech Support:
6024 Silver Creek Valley Road 800-345-7015 or 408-284-8200 logichelp@idt.com
San Jose, CA 95138 fax: 408-284-2775
www.idt.com
