IDT74CBTLVR3384PGG [IDT]
Bus Driver, CBTLV/3B Series, 1-Func, 10-Bit, True Output, PDSO24, TSSOP-24;
| 型号： | IDT74CBTLVR3384PGG |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Bus Driver, CBTLV/3B Series, 1-Func, 10-Bit, True Output, PDSO24, TSSOP-24 光电二极管 |
| 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 10-BIT
BUS SWITCH
IDT74CBTLVR3384
DESCRIPTION:
FEATURES:
The CBTLVR3384 is a ten bit high-speed bus switch. It adds an internal
series resistor with each switch to reduce reflection noise in high speed
applications. Whenclosed,theswitchactsasasource(series)terminationfor
thedriverconnectedtoit.
• Isolation Under Power-Off Conditions
• Over-voltage tolerant
• Latch-up performance exceeds 100mA
• VCC = 2.3V - 3.6V, normal range
The device is organized as dual 5-bit bus switches with separate output-
enable (OE) inputs, to allow use as two 5-bit bus switches or one 10-bit bus
switch. When OE is low, the associated 5-bit bus switch is on and A port is
connectedtoBport.WhenOEishigh,theswitchisopen,andahigh-impedance
stateexistsbetweenthetwoports.
• ESD >2000V per MIL-STD-883, Method 3015; >200V using
machine model (C = 200pF, R = 0)
• Available in SSOP, QSOP, and TSSOP packages
Toensurethehigh-impedancestateduringpoweruporpowerdown,OE
shouldbetiedtoVCCthroughapullupresistor;theminimumvalueoftheresistor
isdeterminedbythecurrent-sinkingcapabilityofthedriver.
APPLICATIONS:
• 3.3V High Speed Bus Switching and Bus Isolation
FUNCTIONALBLOCKDIAGRAM
SIMPLIFIEDSCHEMATIC,EACH
SWITCH
3
2
1A1
1B1
1B5
SW
11
1
10
1A5
SW
1OE
B
A
15
14
2A1
2B1
2B5
SW
SW
10
22
13
OE
2A5
2OE
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
INDUSTRIAL TEMPERATURE RANGE
AUGUST 2002
1
c
2002 Integrated Device Technology, Inc.
DSC-5395/9
IDT74CBTLVR3384
LOW-VOLTAGE10-BITBUSSWITCH
INDUSTRIALTEMPERATURERANGE
ABSOLUTEMAXIMUMRATINGS(1)
PINCONFIGURATION
Symbol Description
Max.
–0.5to4.6
–0.5to4.6
128
Unit
V
VCC
VI
SupplyVoltageRange
InputVoltageRange
V
24
1
VCC
2B5
2A5
2A4
2B4
2B3
2A3
2A2
1OE
ContinuousChannelCurrent
Input Clamp Current, VI/O < 0
StorageTemperatureRange
mA
mA
° C
2
23
22
21
20
19
18
17
16
1B1
IIK
–50
3
4
TSTG
–65to+150
1A1
1A2
1B2
1B3
1A3
1A4
1B4
1B5
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.
5
6
7
8
9
2B2
2B1
2A1
2OE
10
15
14
13
1A5
11
12
GND
FUNCTIONTABLE(1)
Inputs
Inputs/Outputs
2B1-2B5
SSOP/ QSOP/ TSSOP
TOP VIEW
1OE
L
2OE
L
1B1-1B5
1A1-1A5
1A1-1A5
Z
2A1-2A5
L
H
Z
2A1-2A5
Z
H
L
H
H
Z
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Z = High Impedance
OPERATINGCHARACTERISTICS(1)
Symbol
Parameter
Test Conditions
Min.
Max.
Unit
V
VCC
SupplyVoltage
2.3
1.7
2
3.6
—
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
—
—
–40
0.7
0.8
+85
V
° C
NOTE:
1. All unused control inputs of the device must be held at VCC or GND to ensure proper device operation.
2
IDT74CBTLVR3384
LOW-VOLTAGE10-BITBUSSWITCH
INDUSTRIALTEMPERATURERANGE
DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE
FollowingConditionsApplyUnlessOtherwiseSpecified:
OperatingCondition:TA = –40°C to +85°C
Symbol Parameter
Test Conditions
Min.
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Typ.(1)
—
—
—
—
—
—
4
Max.
–1.2
±1
5
Unit
V
VIK
II
ControlInputs,DataI/O
VCC = 3V, II = –18mA
ControlInputs
Data I/O
VCC = 3.6V, VI = VCC or GND
VCC = 3.6V, VO = 0V or 3.6V switch disabled
VCC = 0V, VI or VO = 0V to 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 = 3V or 0
µ A
µ A
µ A
µ A
µ A
pF
IOZ
IOFF
ICC
10
10
(2)
ΔICC
CI
ControlInputs
ControlInputs
300
—
—
47
CIO(OFF)
VO = 3V or 0, OE = VCC
7
pF
Max. at VCC = 2.3V
Typ. at VCC = 2.5V
VI = 0
IO = 64mA
IO = 24mA
IO = 15mA
IO = 64mA
IO = 24mA
IO = 15mA
30
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. On-state resistance is determined by the lower of the voltages
of the two (A or B) terminals.
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
OutputEnableTime
OE to A or B
—
1
0.9
—
1.5
5.3
5.5
ns
tEN
tDIS
6
1
ns
ns
OutputDisableTime
OE to A or B
1
5.5
1
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 impededance).
3
IDT74CBTLVR3384
LOW-VOLTAGE10-BITBUSSWITCH
INDUSTRIALTEMPERATURERANGE
TEST CIRCUITS AND WAVEFORMS
TESTCONDITIONS
VIH
VT
0V
SAME PHASE
INPUT TRANSITION
Symbol
VLOAD
VIH
VCC(1)=3.3V±0.3V
VCC(2)=2.5V±0.2V
Unit
V
tPHL
tPHL
6
3
2 x Vcc
Vcc
tPLH
tPLH
VOH
VT
VOL
OUTPUT
V
VT
1.5
300
300
50
Vcc / 2
150
V
VLZ
mV
mV
pF
VIH
VT
0V
OPPOSITE PHASE
INPUT TRANSITION
VHZ
150
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
VT
D.U.T.
VLOAD/2
VOL + VLZ
VOL
OUTPUT
NORMALLY
LOW
Generator
SWITCH
CLOSED
500Ω
tPHZ
RT
tPZH
CL
VOH
VOH -VHZ
OUTPUT
NORMALLY
HIGH
SWITCH
OPEN
VT
0V
0V
Test Circuits for All Outputs
NOTE:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
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
IDT74CBTLVR3384
LOW-VOLTAGE10-BITBUSSWITCH
INDUSTRIALTEMPERATURERANGE
ORDERINGINFORMATION
CBTLV
X
IDT
XX
XXX
XX
Temp. Range
Family
Device Type Package
PY
Q
PG
Shrink Small Outline Package
Quarter-size Small Outline Package
Thin Shrink Small Outline Package
3384
Low-Voltage 10-Bit Bus Switch
R
25Ω series dampening resistors on A and B ports
74
–40°C to +85°C
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for Tech Support:
logichelp@idt.com
www.idt.com
5
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