IDT74CBTLV3253
LOW-VOLTAGE DUAL 1-OF-4 MULTIPLEXER/DEMULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
LOW-VOLTAGE DUAL
1-OF-4 MULTIPLEXER/
DEMULTIPLEXER
FEATURES:
−
−
−
−
−
−
−
−
Functionally equivalent to QS3253
5Ω Switch Connection between Two Ports
Isolation Under Power-Off Conditions
Over-voltage tolerant
Latch-up performance exceeds 100ma
V
CC
= 2.3V - 3.6V, normal range
ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
Available in SSOP, QSOP, and TSSOP packages
IDT74CBTLV3253
DESCRIPTION:
The CBTLV3253 is a dual 1-of-4 high-speed multiplexer/demultiplexer.
The low on-state resistance of the switch allows connections to be made with
minimal propagation delay.
The select (S0, S1) input controls the data flow. The multiplexer/
demultiplexer switches are disabled when the output-enable (OE) input is
high.
To ensure that the device is in high-impedance state during power up
or power down,
OE
should be tied to V
CC
through a pullup resistor; the
minimum value of the resistor is determined by the current-sinking capability
of the driver.
FUNCTIONAL BLOCK DIAGRAM
1A
7
6
SW
5
1B 2
SW
SW
9
4
1B 3
3
1B 4
SW
10
2B 1
SW
11
1B 1
SW
2A
2B 2
SW
12
2B 3
SW
13
2B 4
S0
S1
14
2
1
1OE
2OE
15
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c
2001
Integrated Device Technology, Inc.
MARCH 2001
DSC-5397/2
IDT74CBTLV3253
LOW-VOLTAGE DUAL 1-OF-4 MULTIPLEXER/DEMULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
1OE
S1
1B4
1B3
1B2
1B1
1A
GND
1
2
3
4
5
6
7
8
16
15
14
SO16-7 13
SO16-9
SO16-10 12
11
10
9
V
CC
2OE
S0
2B4
2B3
2B2
2B1
2A
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
V
CC
V
I
I
IK
T
STG
Description
Supply Voltage Range
Input Voltage Range
Continuous Channel Current
Input Clamp Current, V
I/O
< 0
Storage Temperature
Max.
–0.5 to 4.6
–0.5 to 4.6
128
–50
–65 to +150
Unit
V
V
mA
mA
°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.
SSOP/ QSOP/ TSSOP
TOP VIEW
FUNCTION TABLE
(1)
ONE OF TWO 1:4 MUX/DEMUX BANKS
Inputs
OE
L
L
L
L
H
S1
L
L
H
H
X
S0
L
H
L
H
X
Function
A Port = B1 Port
A Port = B2 Port
A Port = B3 Port
A Port = B4 Port
Disconnect
SIMPLIFIED SCHEMATIC, EACH
SWITCH
A
B
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
CONTROL
CIRCU ITRY
OPERATING CHARACTERISTICS
(1)
Symbol
V
CC
V
IH
V
IL
T
A
Parameter
Supply Voltage
High-Level Control Input Voltage
Low-Level Control Input Voltage
Operating Free-Air Temperature
V
CC
= 2.3V to 2.7V
V
CC
= 2.7V to 3.6V
V
CC
= 2.3V to 2.7V
V
CC
= 2.7V to 3.6V
NOTE:
1. All unused control inputs of the device must be held at V
CC
or GND to ensure proper operation.
Test Conditions
Min.
2.3
1.7
2
—
—
−40
Max.
3.6
—
—
0.7
0.8
+85
Unit
V
V
V
°C
2
IDT74CBTLV3253
LOW-VOLTAGE DUAL 1-OF-4 MULTIPLEXER/DEMULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Operating Condition: T
A
= – 40°C to +85°C
Symbol
V
IK
I
I
I
OZ
I
OFF
I
CC
∆I
CC
(2)
C
I
C
IO(OFF)
Control Inputs
Control Inputs
A port
B port
Max at V
CC
= 2.3V
Typ at V
CC
= 2.5V
R
ON
(3)
Parameter
Control Inputs, Data I/O
Control Inputs, Data I/O
Data I/O
Test Conditions
V
CC
= 3V, I
I
=
−18mA
V
CC
= 3.6V, V
I
= V
CC
or GND
V
CC
= 3.6V, V
O
= 0 or 3.6V, switch disabled
V
CC
= 0, V
I
or V
O
= 0 to 3.6V
V
CC
= 3.6V, I
O
= 0, V
I
= V
CC
or GND
V
CC
= 3.6V, One input at 3V
,
Other inputs at V
CC
or GND
V
I
= 3V or 0
V
O
= 3V or 0,
OE
= V
CC
= 3.3V
V
I
= 0
V
I
= 1.7V
V
I
= 0
I
O
= 64mA
I
O
= 24ma
I
O
= 15mA
I
O
= 64mA
I
O
= 24mA
V
I
= 2.4V
I
O
= 15mA
Min.
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Typ.
(1)
—
—
—
—
—
—
4
20
6
5
5
27
5
5
10
Max.
– 1.2
±1
5
50
10
300
—
—
—
8
8
40
7
7
15
Unit
V
µA
µA
µA
µA
µA
pF
pF
Ω
V
CC
= 3V
NOTES:
1. Typical values are at V
CC
= 3.3V, +25°C ambient.
2. The increase in supply current is attributable to each input that is at the specified voltage level rather than V
CC
or GND.
3. This is measured by the voltage drop between the A and B terminals at the indicated current through the switch. On-state resistance is determined
by the lower of the voltages of the two (A or B) terminals.
SWITCHING CHARACTERISTICS
V
CC
= 2.5V ± 0.2V
Symbol
t
PD(1)
t
SEL
t
EN
t
DIS
t
EN
t
DIS
Parameter
Propagation Delay
A to B or B to A
Select Time
S to A or B
Enable Time
S to B
Disable Time
S to B
Enable Time
OE
to A or B
Disable Time
OE
to A or B
Min.
−
1
1
1
1
1
Max.
0.15
4.8
4.8
5.1
5
5.5
V
CC
= 3.3V ± 0.3V
Min.
−
1
1
1
1
1
Max.
0.25
4.5
4.5
5.3
4.8
5.4
Unit
ns
ns
ns
ns
ns
ns
NOTE:
1. The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance when
driven by an ideal voltage source (zero output impedance).
3
IDT74CBTLV3253
LOW-VOLTAGE DUAL 1-OF-4 MULTIPLEXER/DEMULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS
TEST CONDITIONS
Symbol
V
LOAD
V
IH
V
T
V
LZ
V
HZ
C
L
V
CC
(1)
= 3.3V ± 0.3V
6
3
1.5
300
300
50
V
CC
(2)
= 2.5V ± 0.2V
2 x Vcc
Vcc
V
CC
/2
150
150
30
Unit
V
V
V
mV
mV
pF
PROPAGATION DELAY/ SELECT TIME
SAME PHASE
INPUT TRANSITION
t
PLH
OUTPUT
t
PLH
OPPOSITE PHASE
INPUT TRANSITION
t
PHL
t
PHL
V
IH
V
T
0V
V
OH
V
T
V
OL
V
IH
V
T
0V
TEST CIRCUITS FOR ALL OUTPUTS
V
CC
500
Ω
Pulse
Generator
(1, 2)
ENABLE AND DISABLE TIMES
ENABLE
DISABLE
V
IH
V
T
0V
V
LOAD/2
V
OL +
V
LZ
V
OL
V
OH
V
OH -
V
HZ
0V
V
LOAD
Open
GND
CONTROL
INPUT
t
PZL
OUTPUT
SW ITCH
NORMALLY
CLOSE D
LOW
t
PZH
OUTPUT
SW ITCH
NORMALLY
OPEN
HIGH
V
LOAD/2
V
T
V
IN
D.U.T.
V
OUT
t
PLZ
R
T
500
Ω
C
L
t
PHZ
V
T
0V
NOTES:
1. Pulse generator for all pulses: Rate
≤
10MHz; t
F
≤
2.5ns; t
R
≤
2.5ns.
2.
Pulse generator for all pulses: Rate
≤
10MHz; t
F
≤
2ns; t
R
≤
2ns.
DEFINITIONS:
1. C
L
= Load capacitance: includes jig and probe capacitance.
2.
R
T
= Termination Resistance: Should be equal to Z
OUT
of the pulse
generator.
NOTES:
1. Diagram shown for input Control Enable-LOW and input Control
Disable-HIGH.
SWITCH POSITION
Test
t
PLZ
/
t
PZL
t
PHZ/
t
PZH
t
PD
t
SEL
Switch
V
LOAD
GND
Open
Open
4
IDT74CBTLV3253
LOW-VOLTAGE DUAL 1-OF-4 MULTIPLEXER/DEMULTIPLEXER
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDT
XX
CBTLV
XXX
XX
Package
Tem p. R ange
Device Type
Q
PY
PG
Quarter-Size Sm all Outline Package (SO16-7)
Shrink Sm all O utline Package (SO16-9)
Thin Shrink Small Outline Package (SO16-10)
3253
Low-Voltage Dual 1-of-4 M ultiplexer/Dem ultiplexer
74
–40°C to +85°C
CORPORATE HEADQUARTERS
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www.idt.com
for Tech Support:
logichelp@idt.com
(408) 654-6459
5
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