74CBTLV3251PPG [IDT]
LOW-VOLTAGE 8:1 MULTIPLEXER/ DEMULTIPLEXER;
| 型号： | 74CBTLV3251PPG |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | LOW-VOLTAGE 8:1 MULTIPLEXER/ DEMULTIPLEXER |
| 文件： | 总5页 (文件大小：107K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LOW-VOLTAGE
IDT74CBTLV3251
8:1 MULTIPLEXER/
DEMULTIPLEXER
FEATURES:
DESCRIPTION:
• Functionally equivalent to QS3251
• 5Ω bi-directional switch connection between two ports
• Isolation under power-off conditions
• Over-voltage tolerant
The CBTLV3251 is a 1-of-8 high-speed multiplexer/demultiplexer. The
low on-state resistance of the switch allows connections to be made with
minimalpropagationdelay.
The select input (S0, S1, S2) controls the data flow. The multiplexer/
demultiplexer switches are disabled when the output-enable (OE) input is
high.
• Latch-up performance exceeds 100mA
• VCC = 2.3V - 3.6V, Normal Range
• ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
• Available in QSOP and TSSOP packages
To ensure that the device is in high-impedance state during power up or
powerdown,OEshouldbetiedtoVCC throughapullupresistor;theminimum
value of the resistor is determined by the current-sinking capability of the
driver.
FUNCTIONALBLOCKDIAGRAM
5
4
SW
A
B1
3
SW
B2
2
SW
B3
1
SW
B4
15
SW
B5
B6
B7
B8
14
13
12
SW
SW
SW
11
10
9
S0
S1
S2
7
OE
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
INDUSTRIAL TEMPERATURE RANGE
DECEMBER2014
1
© 2014 Integrated Device Technology, Inc.
DSC-5403/6
IDT74CBTLV3251
LOW-VOLTAGE8:1MULTIPLEXER/DEMULTIPLEXER
INDUSTRIALTEMPERATURERANGE
ABSOLUTEMAXIMUMRATINGS(1)
PINCONFIGURATION
Symbol
VCC
Description
Max
–0.5 to +4.6
–0.5 to +4.6
128
Unit
V
SupplyVoltage Range
B4
B3
B2
B1
A
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VCC
B5
B6
B7
B8
S0
S1
S2
VI
Input Voltage Range
V
Continuous Channel Current
Input Clamp Current, VI/O < 0
Storage Temperature
mA
mA
°C
IIK
–50
TSTG
–65 to +150
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.
NC
OE
GND
QSOP / TSSOP
TOP VIEW
FUNCTIONTABLE(1)
Inputs
OE
L
S2
L
S1
L
S0
L
Function
A Port = B1 Port
A Port = B2 Port
A Port = B3 Port
A Port = B4 Port
A Port = B5 Port
A Port = B6 Port
A Port = B7 Port
A Port = B8 Port
Disconnect
SIMPLIFIEDSCHEMATIC,EACH
SWITCH
L
L
L
H
L
L
L
H
H
L
L
L
H
L
L
H
H
H
H
X
L
L
H
L
L
H
H
X
L
H
X
H
A
B
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
CONTROL
CIRCUITRY
OPERATING CHARACTERISTICS, TA = 25°C(1)
Symbol Parameter
Test Conditions
Min.
2.3
1.7
2
Max.
3.6
—
Unit
V
VCC
VIH
SupplyVoltage
High-LevelControlInputVoltage
Low-LevelControlInputVoltage
OperatingFree-AirTemperature
VCC = 2.3V to 2.7V
VCC = 2.7V to 3.6V
VCC = 2.3V to 2.7V
VCC = 2.7V to 3.6V
V
—
VIL
TA
—
0.7
0.8
85
V
—
−40
°C
NOTE:
1. All unused control inputs of the device must be held at VCC or GND to ensure proper device operation.
2
IDT74CBTLV3251
LOW-VOLTAGE8:1MULTIPLEXER/DEMULTIPLEXER
INDUSTRIALTEMPERATURERANGE
DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE
FollowingConditionsApplyUnlessOtherwiseSpecified:
Operating Conditions: TA = –40°C to +85°C
Symbol
VIK
Parameter
Control Inputs, Data Inputs
Control Inputs
Test Conditions
Min.
—
Typ.(1)
—
Max.
–1.2
1
Unit
V
VCC = 3V, II = –18mA
II
VCC = 3.6V, VI = VCC or GND
—
—
μA
μA
μA
μA
μA
pF
IOZ
Data I/O
VCC = 3.6V, VO = 0 or 3.6V, switch disabled
VCC = 0, VI or VO = 0 to 3.6V
—
—
5
IOFF
ICC
—
—
50
VCC = 3.6V, IO = 0, VI = VCC or GND
VCC = 3.6V, one input at 3V, other inputs at VCC or GND
VI = 3V or 0
—
—
10
(2)
ΔICC
Control Inputs
Control Inputs
—
—
300
—
CI
—
4
CIO(OFF)
A Port
B Port
VO = 3V or 0, OE = VCC = 3.3V
—
—
40.5
6
—
—
pF
VCC = 2.3V
Typ. at VCC = 2.5V
VI = 0
IO = 64mA
IO = 24mA
IO = 15mA
IO = 64mA
IO = 24mA
IO = 15mA
—
—
—
—
—
—
5
5
27
5
5
10
8
8
40
7
7
15
(3)
RON
VI = 1.7V
VI = 0
Ω
VCC = 3V
VI = 2.4V
NOTES:
1. Typical values are at VCC = 3.3V, +25°C ambient.
2. The increase in supply current is attributable to each current that is at the specified voltage level rather than VCC 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.
SWITCHINGCHARACTERISTICS
VCC = 2.5V ± 0.2V
Min.
VCC = 3.3V ± 0.3V
Max.
Symbol Parameter
Max.
Min.
Unit
(1)
tPD
PropagationDelay
−
0.15
−
0.25
ns
A to B or B to A
SelectTime
S to A or B
EnableTime
S to B
tSEL
1
1
1
4.8
4.8
5.1
1
1
1
4.5
4.5
5.3
ns
ns
ns
tEN
tDIS
DisableTime
S to B
tEN
OutputEnableTime
1
1
5
1
1
4.8
6
ns
ns
OE to A or B
tDIS
OutputDisableTime
5.5
OE to A or B
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 driven by an ideal voltage source
(zero output impedance).
3
IDT74CBTLV3251
LOW-VOLTAGE8:1MULTIPLEXER/DEMULTIPLEXER
INDUSTRIALTEMPERATURERANGE
VIH
VT
0V
TESTCIRCUITSANDWAVEFORMS
TESTCONDITIONS
SAME PHASE
INPUT TRANSITION
tPHL
tPHL
tPLH
tPLH
VOH
VT
VOL
OUTPUT
Symbol
VLOAD
VIH
VCC(1)=3.3V±0.3V
VCC(2)=2.5V±0.2V
Unit
V
6
3
2 x Vcc
Vcc
V
VIH
VT
0V
OPPOSITE PHASE
INPUT TRANSITION
VT
1.5
300
300
50
Vcc / 2
150
V
VLZ
mV
mV
pF
VHZ
150
Propagation Delay
CL
30
VLOAD
Open
GND
VCC
DISABLE
ENABLE
VIH
VT
0V
CONTROL
INPUT
500
tPZL
tPLZ
VIN
VOUT
(1, 2)
Pulse
VLOAD/2
D.U.T.
VLOAD/2
VOL + VLZ
VOL
OUTPUT
NORMALLY
LOW
Generator
SWITCH
CLOSED
VT
500
tPHZ
RT
tPZH
CL
VOH
VOH -VHZ
OUTPUT
NORMALLY
HIGH
SWITCH
OPEN
VT
0V
0V
Test Circuits for All Outputs
Enable and Disable Times
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
NOTES:
1. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.
2. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2ns; tR ≤ 2.5ns.
SWITCHPOSITION
Test
tPLZ/tPZL
tPHZ/tPZH
tSEL
Switch
VLOAD
GND
Open
Open
tPD
4
IDT74CBTLV3251
LOW-VOLTAGE8:1MULTIPLEXER/DEMULTIPLEXER
INDUSTRIALTEMPERATURERANGE
ORDERINGINFORMATION
CBTLV
XXX
XX
X
XX
Temp. Range
Device Type Package
Blank Tube or Tray
8
Tape and Reel
QG
PGG
Quarter-Size Small Outline Package - Green
Thin Shrink Small Outline Package - Green
3251
74
Low-Voltage 1-of-8 Multiplexer/Demultiplexer
–40°C to +85°C
Datasheet Document History
12/18/2014
Pg. 5
Updated the ordering information by removing non RoHS part and adding Tape and Reel information.
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