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IDTQS3390
HIGH-SPEED CMOS QUICKSWITCH 16:8 MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
MARCH 2000
2000 Integrated Device Technology, Inc.
DSC-5759/1
c
INDUSTRIAL TEMPERATURE RANGE
FEATURES:
Enhanced N channel FET with no inherent diode to Vcc
16:8 multiplexer function with zero delay
5
bidirectional switches connect inputs to outputs
Zero propagation delay, zero ground bounce
Low power CMOS proprietary technology
Undershoot clamp diodes on all switch and control inputs
Direct bidirectional connection for mux, demux
Available in SOIC and QSOP packages
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
APPLICATIONS:
Video, audio, graphics switching, muxing
Hot-swapping, hot-docking
Voltage translation (5V to 3.3V)
IDTQS3390
FUNCTIONAL BLOCK DIAGRAM
QUICKSWITCH
PRODUCTS
HIGH-SPEED CMOS QUICKSWITCH
16:8 MULTIPLEXER
AB
7
AE N
AB
0
A
7
A
0
BE N
B
7
B
0
DESCRIPTION:
The QS3390 provides a 16:8 multiplexer logic switch. The low ON
resistance (5
) of the QS3390 allows inputs to be connected to the outputs
without adding propagation delay and without generating additional ground
bounce noise.
Mux/Demux devices provide an order of magnitude faster speed than
equivalent logic devices.
The QS3390 is characterized for operation at -40C to +85C.
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INDUSTRIAL TEMPERATURE RANGE
IDTQS3390
HIGH-SPEED CMOS QUICKSWITCH 16:8 MULTIPLEXER
PIN CONFIGURATION
Symbol
Description
Max
Unit
V
TERM
(2)
Supply Voltage to Ground
0.5 to +7
V
V
TERM
(3)
DC Switch Voltage V
S
0.5 to +7
V
V
TERM
(3)
DC Input Voltage V
IN
0.5 to +7
V
V
AC
AC Input Voltage (pulse width
20ns)
3
V
I
OUT
DC Output Current
120
mA
P
MAX
Maximum Power Dissipation (T
A
= 85C)
0.5
W
T
STG
Storage Temperature
65 to +150
C
ABSOLUTE MAXIMUM RATINGS
(1)
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
AEN
BEN
A
0
- A
9
B
0
- B
9
Function
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
FUNCTION TABLE
(1)
Pins
Typ.
Max.
(1)
Unit
Control Inputs
4
5
pF
Quickswitch Channels
Demux
5
7
pF
(Switch OFF)
Mux
9
10
CAPACITANCE
(T
A
= +25C, f = 1MHz, V
IN
= 0V, V
OUT
= 0V)
NOTE:
1. This parameter is guaranteed but not production tested.
Pin Names
I/O
Description
A
0
- A
9
I/O
Bus A
B
0
- B
9
I/O
Bus B
AEN, BEN
I
Bus Switch Enable
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. V
CC
terminals.
3. All terminals except V
CC
.
SOIC/ QSOP/ TSSOP
TOP VIEW
24
23
22
21
20
19
18
17
16
15
11
12
B
0
AB
0
V
CC
1
2
3
4
5
6
7
8
9
10
14
13
AEN
GND
BEN
25
26
27
28
A
0
B
1
AB
1
A
1
B
2
AB
2
A
2
B
3
AB
3
A
3
B
7
AB
7
A
7
B
6
AB
6
A
6
B
5
AB
5
A
5
B
4
AB
4
A
4
3
IDTQS3390
HIGH-SPEED CMOS QUICKSWITCH 16:8 MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
TYPICAL ON RESISTANCE vs V
IN
AT V
CC
= 5V
R
ON
(ohms)
V
IN
(Volts)
Symbol
Parameter
Test Conditions
Min.
Typ.
(1)
Max.
Unit
V
IH
Input HIGH Voltage
Guaranteed Logic HIGH for Control Pins
2
--
--
V
V
IL
Input LOW Voltage
Guaranteed Logic LOW for Control Pins
--
--
0.8
V
I
IN
Input Leakage Current (Control Inputs)
0V
V
IN
V
CC
--
--
1
A
I
OZ
Off-State Current (Hi-Z)
0V
V
OUT
V
CC
--
--
1
A
R
ON
Switch ON Resistance
V
CC
= Min., V
IN
= 0V, I
ON
= 30mA
--
5
7
V
CC
= Min., V
IN
= 2.4V, I
ON
= 15mA
--
10
15
V
P
Pass Voltage
(2)
V
IN
= V
CC
= 5V, I
OUT
= -5
A
3.7
4
4.2
V
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: T
A
= 40C to +85C, V
CC
= 5V 5%
NOTES:
1. Typical values are at V
CC
= 5V and T
A
= 25C.
2. 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
IDTQS3390
HIGH-SPEED CMOS QUICKSWITCH 16:8 MULTIPLEXER
NOTES:
1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Per TTL-driven input (V
IN
= 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 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
I
CCQ
Quiescent Power Supply Current
V
CC
= Max., V
IN
= GND or V
CC
, f = 0
3
A
I
CC
Power Supply Current per Input HIGH
(2)
V
CC
= Max., V
IN
= 3.4V, f = 0
1.5
mA
I
CCD
Dynamic Power Supply Current per MHz
(3)
V
CC
= Max., A, B, and AB Pins Open, Control Inputs Toggling
0.25
mA/MHz
@ 50% Duty Cycle
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
T
A
= -40C to +85C, V
CC
= 5V 5%
C
LOAD
= 50pF, R
LOAD
= 500
unless otherwise noted.
Symbol
Parameter
Min
.
(1)
Typ.
Max.
Unit
t
PLH
Data Propagation Delay
(2)
0.25
(3)
ns
t
PHL
A, B, to/from AB
t
PZL
Switch Turn-On Delay
1.5
6.5
ns
t
PZH
AEN, BEN to A, B, AB
t
PLZ
Switch Turn-Off Delay
(2)
1.5
5.5
ns
t
PHZ
AEN, BEN to A, B, AB
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 C
L
= 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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IDTQS3390
HIGH-SPEED CMOS QUICKSWITCH 16:8 MULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
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
IDTQS
XXXXX
XX
Package
Device Type
Blank
Industrial (-40C to +85C)
Small Outline IC
Quarter Size Outline Package
SO
Q
3390
High Speed CMOS QuickSwitch 16:8 Multiplexer
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Process
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