IDT74CBTLV16292PAG [IDT]
Bus Exchanger, CBTLV/3B Series, 1-Func, 12-Bit, True Output, CMOS, PDSO56, GREEN, TSSOP-56;型号: | IDT74CBTLV16292PAG |
厂家: | INTEGRATED DEVICE TECHNOLOGY |
描述: | Bus Exchanger, CBTLV/3B Series, 1-Func, 12-Bit, True Output, CMOS, PDSO56, GREEN, TSSOP-56 光电二极管 逻辑集成电路 |
文件: | 总5页 (文件大小:65K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
LOW-VOLTAGE 12-BIT 1:2
IDT74CBTLV16292
MUX / DEMUX BUS SWITCH
WITH INTERNAL PULL DOWN
RESISTORS
DESCRIPTION:
FEATURES:
The CBTLV16292 is a single 12-bit multiplexing / demultiplexing bus
switch,whichprovideshighspeedswitching. ThisdevicehasverylowON
resistance,resultinginunder250pspropagationdelaythroughttheswitch.
The demultiplexer side has a 500Ω resistor (R pulldown) termination to
GNDtoeliminatefloatingnodes.
• 5Ω A/B bi-directional switch
• Isolation Under Power-Off Conditions
• Make-before-break feature
• Over-voltage tolerant
• Internal 500Ω pull-down resistor to GND
• 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 TSSOP package
Whenthe select(S)inputis low,the Aportis connectedtothe B1port,
andtheRpulldownis connectedtotheB2port. Similarly,whentheSinput
is high,Aportis connectedtoB2portandthe Rpulldownis connectedto
B1 port.
APPLICATIONS:
• 3.3V High Speed Bus Switching and Bus Isolation
• Resource sharing
FUNCTIONALBLOCKDIAGRAM
SIMPLIFIEDSCHEMATIC,EACH
SWITCH
54
2
1A
SW
1B1
RPULLDOWN
RPULLDOWN
A
B
53
30
SW
1B2
27
SW
12A
12B1
RPULLDOWN
RPULLDOWN
SELECT CONTROL
CIRCUITRY
30
SW
12B2
1
S
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
INDUSTRIAL TEMPERATURE RANGE
JUNE 2006
1
c
2006 Integrated Device Technology, Inc.
DSC-5892/8
IDT74CBTLV16292
LOW-VOLTAGE12-BIT1:2MUX/DEMUXBUSSWITCH
INDUSTRIALTEMPERATURERANGE
ABSOLUTEMAXIMUMRATINGS(1)
PINCONFIGURATION
Symbol Description
Max.
–0.5to4.6
–0.5to4.6
128
Unit
V
S
1A1
NC
1
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
NC
VCC
VI
SupplyVoltageRange
2
NC
InputVoltageRange
V
3
1B1
1B2
2B1
2B2
3B1
GND
3B2
4B1
4B2
5B1
5B2
6B1
6B2
7B1
7B2
8B1
GND
8B2
9B1
9B2
10B1
10B2
11B1
11B2
12B1
12B2
ContinuousChannelCurrent
Input Clamp Current, VI/O < 0
StorageTemperatureRange
mA
mA
° C
2A1
NC
4
IIK
–50
5
TSTG
–65to+150
3A1
NC
6
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.
7
GND
4A1
NC
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
5A1
NC
6A1
NC
PINDESCRIPTION
7A1
NC
Pin Names
S
Description
SelectInput
VCC
8A1
GND
NC
xAx
PortAInputs orOutputs
PortBInputs orOutputs
xBx
9A1
NC
10A1
NC
FUNCTIONTABLE(1)
Input
S
11A1
NC
Operation
L
A Port = B1 Port
RPULLDOWN = B2 Port
A Port = B2 Port
RPULLDOWN = B1 Port
12A1
NC
H
TSSOP
TOP VIEW
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
OPERATINGCHARACTERISTICS(1)
Symbol
Parameter
Test Conditions
Min.
2.3
1.7
2
Max.
3.6
—
Unit
V
VCC
SupplyVoltage
VIH
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
IDT74CBTLV16292
LOW-VOLTAGE12-BIT1:2MUX/DEMUXBUSSWITCH
INDUSTRIALTEMPERATURERANGE
DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE
FollowingConditionsApplyUnlessOtherwiseSpecified:
OperatingCondition:TA = –40°C to +85°C
Symbol
VIK
Parameter
Test Conditions
Min.
—
—
—
—
—
—
—
—
—
—
—
—
—
Typ.(1)
—
—
—
—
—
3.5
22.5
5
Max.
–1.2
±1
10
10
300
—
—
8
Unit
V
ControlInputs,DataI/O
ControlInputs
VCC = 3V, II = –18mA
II
VCC = 3.6V, VI = VCC or GND
VCC = 0V, VI or VO = 0V or 3.6V
VCC = 3.6V, IO = 0, VI = VCC or GND
VCC = 3.6V, one input at 3V, other inputs at VCC or GND
VI = 3.3V or 0
µ A
µ A
µ A
µ A
pF
IOFF
ICC
(2)
ΔICC
ControlInputs
CI
ControlInputs
CIO(OFF)
A port or B port
Max. at VCC = 2.3V
Typ. at VCC = 2.5V
VO = 3.3V or 0
pF
VI = 0
IO = 64mA
IO = 24mA
IO = 15mA
IO = 64mA
IO = 24mA
IO = 15mA
5
8
(3)
RON
VI = 1.7V
VI = 0
11
40
7
Ω
3
VCC = 3V
3
7
VI = 2.4V
7
15
NOTES:
1. Typical values are at 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 VCC or GND.
3. This is measured by the voltage drop between the A and B terminals at the indicated current through the switch.
SWITCHINGCHARACTERISTICS
VCC = 2.5V ± 0.2V
VCC = 3.3V ± 0.3V
Min. Max.
Symbol
Parameter
Min.
—
Max.
Unit
(1)
tPD
PropagationDelay
A to B or B to A
PropagationDelay
S to A
0.15
—
2.5
1
0.25
6.7
5
ns
ns
ns
ns
ns
(2)
tPD
2.5
1
7.1
5.6
5
tEN
tDIS
OutputEnableTime
S to B
OutputDisableTime
S to B
1
1
4.5
2
(3,4)
tMB/B
Make-Before-BreakTime
0
2
0
NOTES:
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).
2. The condition to measure this propagation delay is by observing the change of voltage on the A port introduced by static fields equal to 3V or 0V for 3.3V±0.3V or VCC or 0 for
2.5V±0.2V on B1 and B2 ports to get the required transition.
3. The make-before-break time is the duration between the make and break, during transition from one selected port to another.
4. This parameter is guaranteed by design but not production tested.
3
IDT74CBTLV16292
LOW-VOLTAGE12-BIT1:2MUX/DEMUXBUSSWITCH
INDUSTRIALTEMPERATURERANGE
TEST CIRCUITS AND WAVEFORMS
TESTCONDITIONS
(1)
(2)
VIH
VT
0V
Symbol
VLOAD
VIH
VCC =3.3V±0.3V
VCC =2.5V±0.2V
Unit
V
SAME PHASE
INPUT TRANSITION
6
3
2 x Vcc
Vcc
tPHL
tPHL
tPLH
tPLH
V
VOH
VT
VOL
OUTPUT
VT
1.5
300
300
50
Vcc / 2
150
V
VLZ
mV
mV
pF
VIH
VT
0V
VHZ
150
OPPOSITE PHASE
INPUT TRANSITION
CL
30
Propagation Delay
VLOAD
Open
GND
VCC
DISABLE
ENABLE
VIH
VT
0V
CONTROL
INPUT
500Ω
tPZL
tPLZ
VIN
VOUT
(1, 2)
Pulse
VLOAD/2
D.U.T.
VLOAD/2
VOL + VLZ
VOL
OUTPUT
NORMALLY
LOW
Generator
SWITCH
CLOSED
VT
500Ω
tPHZ
RT
tPZH
CL
VOH
VOH -VHZ
OUTPUT
NORMALLY
HIGH
SWITCH
OPEN
VT
0V
0V
Test Circuits for All Outputs
NOTES:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
2. Disable Low waveform applies to outputs that are LOW, except when disabled by
the output control S.
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
Enable and Disable Times
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 ≤ 2ns.
SWITCHPOSITION
Test
tPLZ/tPZL
tPHZ/tPZH
tPD
Switch
VLOAD
GND
Open
4
IDT74CBTLV16292
LOW-VOLTAGE12-BIT1:2MUX/DEMUXBUSSWITCH
INDUSTRIALTEMPERATURERANGE
ORDERINGINFORMATION
XXX
XX
CBTLV
IDT
XX
Temp. Range
Device Type Package
Thin Shrink Small Outline Package
PA
TSSOP - Green
PAG
16292
74
Low-Voltage 12-Bit Mux / Demux Bus Switch
with Internal Pull Down Resistors
–40°C to +85°C
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www.idt.com
5
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