IDT74CBTLVR16292PV [IDT]
LOW-VOLTAGE 12-BIT 1:2 MUX / DEMUX BUS SWITCH WITH INTERNAL PULL DOWN RESISTORS; 低电压12位1 ： 2复用器/解复用器总线和内部交换下拉电阻
| 型号： | IDT74CBTLVR16292PV |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | LOW-VOLTAGE 12-BIT 1:2 MUX / DEMUX BUS SWITCH WITH INTERNAL PULL DOWN RESISTORS |
| 文件： | 总5页 (文件大小：63K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LOW-VOLTAGE 12-BIT 1:2
IDT74CBTLVR16292
MUX / DEMUX BUS SWITCH
WITH INTERNAL PULL DOWN
RESISTORS
DESCRIPTION:
FEATURES:
The CBTLVR16292 is a single 12-bit multiplexing / demultiplexing bus
switch,whichprovideshighspeedswitching. BothAandBportshave25Ω
series dampening resistors to minimize undershoot, reflection noise, and
charge sharing effects. The demultiplexer side has a 500Ω resistor
terminationtoGNDtoeliminatefloatingnodes.
• Isolation Under Power-Off Conditions
• Make-before-break feature
• Over-voltage tolerant
• Internal 500Ω pull-down resistor to GND
• Both A and B ports have 25Ω series dampening resistors
• 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)
When the select (S) input is low, the A port is connected to the B1 port,
andtheRpulldownisconnectedtotheB2port. Similarly, whentheSinput
is high, A port is connected to B2 port and the R pulldown is connected to
B1 port.
• Available in SSOP, TSSOP, and TVSOP packages
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
SW
1B2
27
30
SW
12A
12B1
RPULLDOWN
SELECT CONTROL
CIRCUITRY
RPULLDOWN
30
SW
12B2
1
S
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
INDUSTRIAL TEMPERATURE RANGE
AUGUST 2002
1
c
2002 Integrated Device Technology, Inc.
DSC-5891/4
IDT74CBTLVR16292
INDUSTRIALTEMPERATURERANGE
LOW-VOLTAGE12-BIT1:2MUX/DEMUXBUSSWITCH
ABSOLUTEMAXIMUMRATINGS(1)
PINCONFIGURATION
Symbol Description
Max.
–0.5to4.6
–0.5to4.6
128
Unit
V
S
1A
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
NC
2A
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
4
IIK
–50
NC
3A
5
TSTG
–65to+150
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.
NC
GND
4A
7
8
9
NC
5A
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
NC
6A
NC
7A
PINDESCRIPTION
Pin Names
Description
NC
VCC
8A
S
SelectInput
xAx
xBx
PortAInputsorOutputs
PortBInputsorOutputs
GND
NC
9A
NC
10A
NC
11A
NC
12A
NC
FUNCTIONTABLE(1)
Input
S
Operation
L
A Port = B1 Port
RPULLDOWN = B2 Port
A Port = B2 Port
RPULLDOWN = B1 Port
H
SSOP/ TSSOP/ TVSOP
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
IDT74CBTLVR16292
INDUSTRIALTEMPERATURERANGE
LOW-VOLTAGE12-BIT1:2MUX/DEMUXBUSSWITCH
DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE
FollowingConditionsApplyUnlessOtherwiseSpecified:
Operating Condition: TA = –40°C to +85°C
Symbol
VIK
Parameter
Test Conditions
Min.
—
—
—
—
—
—
—
—
—
—
—
—
—
Typ.(1)
—
Max.
–1.2
±1
10
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
—
µA
µA
µA
µA
pF
IOFF
ICC
—
—
10
(2)
∆ICC
ControlInputs
—
300
—
CI
ControlInputs
3.5
23
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
30
47
30
47
(3)
RON
VI = 1.7V
VI = 0
36
80
Ω
30
42
VCC = 3V
30
42
VI = 2.4V
32
47
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
0.9
—
3.2
1
1.5
ns
ns
ns
ns
ns
(2)
tPD
3.2
1
8.5
6.5
5.3
2
8
tEN
OutputEnableTime
S to B
5.8
4.6
2
tDIS
OutputDisableTime
S to B
1
1
(3,4)
tMB/B
Make-Before-BreakTime
0
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
IDT74CBTLVR16292
INDUSTRIALTEMPERATURERANGE
LOW-VOLTAGE12-BIT1:2MUX/DEMUXBUSSWITCH
TEST CIRCUITS AND WAVEFORMS
TESTCONDITIONS
VCC(1)=3.3V±0.3V
VCC(2)=2.5V±0.2V
Unit
V
VIH
VT
0V
Symbol
VLOAD
VIH
SAME PHASE
INPUT TRANSITION
6
2 x Vcc
Vcc
tPHL
tPHL
tPLH
tPLH
3
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
CONTROL
INPUT
500Ω
0V
tPZL
tPLZ
VIN
VOUT
(1, 2)
Pulse
VLOAD/2
D.U.T.
VLOAD/2
OUTPUT
NORMALLY
LOW
Generator
SWITCH
CLOSED
VT
VOL + VLZ
VOL
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
IDT74CBTLVR16292
INDUSTRIALTEMPERATURERANGE
LOW-VOLTAGE12-BIT1:2MUX/DEMUXBUSSWITCH
ORDERINGINFORMATION
XXX
XX
CBTLV
IDT
XX
X
Temp. Range
Device Type Package
Family
PV
PA
PF
Shrink Small Outline Package
Thin Shrink Small Outline Package
Thin Very Small Outline Package
16292
Low-Voltage 12-Bit Mux / Demux Bus Switch
with Internal Pull Down Resistors
R
25Ω series dampening resistors on A and B ports
74
–40°C to +85°C
CORPORATE HEADQUARTERS
2975StenderWay
Santa Clara, CA 95054
for SALES:
800-345-7015 or 408-727-6116
fax: 408-492-8674
for Tech Support:
logichelp@idt.com
(408) 654-6459
www.idt.com
5
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