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IDTQS32390
HIGH-SPEED CMOS QUICKSWITCH 16:8 MULTIPLEXER INDUSTRIAL TEMPERATURE RANGE
MARCH 2002
2002 Integrated Device Technology, Inc. DSC-5752/2c
INDUSTRIAL TEMPERATURE RANGE
AB7
AEN
AB0
A7
A0
BEN
B7
B0
FUNCTIONAL BLOCK DIAGRAM
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FEATURES:
• Enhanced N channel FET with no inherent diode to Vcc
• 16:8 multiplexer function with zero delay
•5
ΩΩ
ΩΩ
Ω bidirectional switches connect inputs to outputs
• Zero propagation delay, zero ground bounce
• Undershoot clamp diodes on all switch and control inputs
• Direct bidirectional connection for mux, demux
•25
ΩΩ
ΩΩ
Ω resistors for low noise
• Available in QSOP package
APPLICATIONS:
• Video, audio, graphics switching, muxing
• Hot-swapping, hot-docking
• Voltage translation (5V to 3.3V)
IDTQS32390
QUICKSWITCH® PRODUCTS
HIGH-SPEED CMOS QUICKSWITCH
16:8 MULTIPLEXER
DESCRIPTION:
The QS32390 provides a 16:8 multiplexer logic switch. The QS32390 has
an internal 25Ω resistor to reduce reflection noise in high-speed applica-
tions. The enable inputs connect one of two inputs to the common I/O pin,
respectively. The multiplexer function can be used to select and route logic
signals for zero delay, isolate bus capacitance, form crossbar switches, etc.
Mux/Demux devices provide an order of magnitude faster speed than
equivalent logic devices.
The QS32390 is characterized for operation at -40°C to +85°C.
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INDUSTRIAL TEMPERATURE RANGE
IDTQS32390
HIGH-SPEED CMOS QUICKSWITCH 16:8 MULTIPLEXER
PIN CONFIGURATION
QSOP
TOP VIEW
24
23
22
21
20
19
18
17
16
15
11
12
B0
AB0
VCC
1
2
3
4
5
6
7
8
9
10
14
13
AEN
GND BEN
25
26
27
28
A0
B1
AB1
A1
B2
AB2
A2
B3
AB3
A3
B7
AB7
A7
B6
AB6
A6
B5
AB5
A5
B4
AB4
A4
NOTE:
1 . H = HIGH Voltage Level
L = LOW Voltage Level
FUNCTION TABLE(1)
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 . 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)
NOTE:
1. This parameter is measured at characterization but not tested.
Pins Typ. Max. (1) Unit
Control Pins 4 5 pF
Quickswitch Channels Demux 5 7 pF
(Switch OFF) Mux 9 10
PIN DESCRIPTION
Pin Names I/O Description
A0 - A9I/ O Bus A
B0 - B9I/ O Bus B
AEN, BEN I Bus Switch Enable
AEN BEN A0 - A9B0 - B9Function
H H Off Off Disconnect
L H On Off A to AB
H L Off On B to AB
L L On On A, B to AB
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IDTQS32390
HIGH-SPEED CMOS QUICKSWITCH 16:8 MULTIPLEXER INDUSTRIAL TEMPERATURE RANGE
RON
(ohms)
VIN
(Volts)
TYPICAL ON RESISTANCE vs VIN AT VCC = 5V
80
70
60
50
40
30
20
10
00.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Symbol Parameter Test Conditions Min. Typ.(1) Max. Unit
VIH Input HIGH Level Guaranteed Logic HIGH for Control Pins 2 — — V
VIL Input LOW Level Guaranteed Logic LOW for Control Pins — — 0. 8 V
IIN Input LeakageCurrent (Control Inputs)(2) 0V ≤ VIN ≤ VCC ——±1µA
IOZ Off-State Output Current (Hi-Z) 0V ≤ VOUT ≤ VCC, Switches OFF — — ±1µA
RON(3) Switch ON Resistance VCC = Min., VIN = 0V, ION = 30mA 15 20 35 Ω
VCC = Min., VIN = 2.4V, ION =15mA 15 19 40
VPPass Voltage(2) 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 = 5.0V ±5%
NOTES:
1. Typical values are at VCC = 5.0V, TA = 25°C.
2. Pass Voltage is guaranteed but not production tested.
3. ROUT changed on March 8, 2002. See rear page for more information.
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INDUSTRIAL TEMPERATURE RANGE
IDTQS32390
HIGH-SPEED CMOS QUICKSWITCH 16:8 MULTIPLEXER
POWER SUPPLY CHARACTERISTICS
Symbol Parameter Test Conditions(1) Max. Unit
ICCQ Quiescent Power Supply Current VCC = Max., VIN = GND or Vcc, f = 0 3 µA
∆ICC Power Supply Current per Control Input HIGH (2) VCC = Max., VIN = 3.4V, f = 0 1.5 mA
ICCD Dynamic Power Supply Current per MHz(3) VCC = Max., A, B, and AB pins open 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, B, and AB 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, B, and AB I/Os 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 ± 5%;
CLOAD = 50pF, RLOAD = 500Ω unless otherwise noted.
Symbol Parameter Min. (1) Typ. Max. Unit
tPLH Data Propagation Delay (2,4) — — 1.25(3) ns
tPHL AxBx to CxDx, CxDx to AxBx
tPZH Switch Turn-on Delay 1.5 — 7.5 ns
tPZL BE to Ax, Bx, Cx, Dx
tPHZ Switch Turn-off Delay (2) — — 5.5 ns
tPLZ BE 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 time constant for the switch alone is of the order of 1.25ns for CL = 50pF.
4 . The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. 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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IDTQS32390
HIGH-SPEED CMOS QUICKSWITCH 16:8 MULTIPLEXER INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDTQS XXXXX XX
Package
Device Type
Quar ter Si z e Outline Package
Q
32390 High Speed CMOS QuickSwitch 16:8 Multiplexer
CORPORATE HEADQUARTERS for SALES: for Tech Support:
2975 Stender Way 800-345-7015 or 408-727-6116 logichelp@idt.com
Santa Clara, CA 95054 fax: 408-492-8674 (408) 654-6459
www.idt.com
Parameter Description Min. Typ. Max. Unit
RON VCC = Min, VIN = 0V, ION = 30mA 20 28 40 Ω
VCC = Min, VIN = 2.4V, ION = 15mA 24 35 48
As per PCN L0201-02, the Output Resistance (RON) specifications have changed as of March 8, 2002. The original specifications were:
