IDT74CBTLV16245PF8 [IDT]
Bus Driver, CBTLV/3B Series, 2-Func, 8-Bit, True Output, PDSO48, TVSOP-48;
| 型号： | IDT74CBTLV16245PF8 |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Bus Driver, CBTLV/3B Series, 2-Func, 8-Bit, True Output, PDSO48, TVSOP-48 光电二极管 电视 |
| 文件： | 总5页 (文件大小：67K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
IDT74CBTLV16245
LOW-VOLTAGE 16-BIT
BUS SWITCH
FEATURES:
DESCRIPTION:
• 5Ω A/B bi-directional switch
TheCBTLV16245isasetof16-bitbusswitches. Ithasstandard16245
pinouts. Thedeviceisorganizedasdual8-bitlowresistanceswitcheswith
independent Output Enable (xOE) control inputs. The switches can be
turnedonunderthecontroloftheLVTTL-compatibleOutputEnablesignals
(xOE)forbidirectionaldata flowbetweenportAandportB. WhenxOE is
high,theswitchisoffandahighimpedanceexistsbetweenPortAandPort
B.
• Isolation Under Power-Off Conditions
• Over-voltage tolerant
• 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 and TVSOP packages
Toensure the high-impedance state duringpoweruporpowerdown,
OE should be tied to VCC through a pullup resistor.
APPLICATIONS:
• 3.3V High Speed Bus Switching and Bus Isolation
FUNCTIONALBLOCKDIAGRAM
SIMPLIFIEDSCHEMATIC,EACH
SWITCH
47
37
2
SW
1A1
1A8
1B1
1B8
A
B
12
SW
48
1OE
2A1
OE
13
36
SW
2B1
2B8
23
26
25
SW
2A8
2OE
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
INDUSTRIAL TEMPERATURE RANGE
JUNE 2006
1
c
2006 Integrated Device Technology, Inc.
DSC-5885/9
IDT74CBTLV16245
LOW-VOLTAGE16-BITBUSSWITCH
INDUSTRIALTEMPERATURERANGE
ABSOLUTEMAXIMUMRATINGS(1)
PINCONFIGURATION
Symbol Description
Max.
–0.5to4.6
–0.5to4.6
128
Unit
V
VCC
VI
SupplyVoltageRange
1OE
1A1
1A2
NC
NC
1B1
1B2
NC
1B3
1
2
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
InputVoltageRange
V
ContinuousChannelCurrent
Input Clamp Current, VI/O < 0
StorageTemperatureRange
mA
mA
° C
IIK
–50
3
TSTG
–65to+150
4
NOTE:
1A3
5
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.
1A4
NC
1A5
1B4
NC
1B5
6
7
8
1A6
1B6
9
GND
1A7
GND
1B7
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1A8
2A1
2A2
GND
2A3
1B8
2B1
PINDESCRIPTION
Pin Names
xOE
Description
2B2
OutputEnable(ActiveLOW)
GND
2B3
xAx
PortAInputs orOutputs
PortBInputs orOutputs
xBx
2A4
VCC
2A5
2B4
VCC
2B5
2A6
2B6
GND
2A7
GND
2B7
(1)
FUNCTION TABLE (EACH 8-BIT BUS SWITCH)
Input
2A8
2B8
NC
OE
L
Operation
A-Port = B-Port
Disconnect
2OE
H
NOTE:
TSSOP/TVSOP
TOP VIEW
1. H = HIGH Voltage Level
L = LOW Voltage Level
OPERATINGCHARACTERISTICS(1)
Symbol
Parameter
Test Conditions
Min.
Max.
3.6
—
Unit
VCC
SupplyVoltage
2.3
1.7
2
V
V
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
—
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
IDT74CBTLV16245
LOW-VOLTAGE16-BITBUSSWITCH
INDUSTRIALTEMPERATURERANGE
DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE
FollowingConditionsApplyUnlessOtherwiseSpecified:
OperatingCondition:TA = –40°C to +85°C
Symbol
VIK
Parameter
Test Conditions
Min.
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Typ.(1)
—
—
—
—
—
—
4
Max.
–1.2
±1
5
Unit
V
ControlInputs,DataI/O
ControlInputs
Data I/O
VCC = 3V, II = –18mA
II
VCC = 3.6V, VI = VCC or GND
VCC = 3.6V, VO = 0V or 3.6V switch disabled
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 = 3V or 0
µ A
µ A
µ A
µ A
µ A
pF
IOZ
IOFF
ICC
10
10
300
—
—
8
(2)
ΔICC
ControlInputs
ControlInputs
CI
CIO(OFF)
VO = 3V or 0, OE = VCC
9
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
5
5
8
(3)
RON
VI = 1.7V
VI = 0
27
5
40
7
Ω
VCC = 3V
5
7
VI = 2.4V
10
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
OutputEnableTime
OE to A or B
0.15
—
0.25
4.5
5
ns
ns
ns
tEN
tDIS
1
1
5
1
OutputDisabletime
OE to A or B
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
IDT74CBTLV16245
LOW-VOLTAGE16-BITBUSSWITCH
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
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
IDT74CBTLV16245
LOW-VOLTAGE16-BITBUSSWITCH
INDUSTRIALTEMPERATURERANGE
ORDERINGINFORMATION
XXX
XX
CBTLV
IDT
XX
Temp. Range
Device Type Package
Thin Shrink Small Outline Package
TSSOP - Green
Thin Very Small Outline Package
PA
PAG
PF
TVSOP - Green
PFG
16245
74
Low-Voltage 16-Bit Bus Switch
–40°C to +85°C
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5
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