IDT74CBTLV3245QG8 [IDT]
Bus Driver, CBTLV/3B Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20, GREEN, QSOP-20;
| 型号： | IDT74CBTLV3245QG8 |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Bus Driver, CBTLV/3B Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20, GREEN, QSOP-20 驱动 光电二极管 逻辑集成电路 |
| 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 OCTAL
BUS SWITCH
IDT74CBTLV3245
FEATURES:
DESCRIPTION:
• Pin-out compatible with standard '245 Logic products
• 5Ω A/B bi-directional switch
The octal bus switch has standard 245 pinouts. The CBTLV3245 is
designedforasynchronous communicationbetweendata buses. When
OutputEnable(OE)islow,the8-bitbusswitchisonandportAisconnected
toPortB. WhenOE is high,the switchis offanda highimpedance exists
between Port A and Port 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 QSOP and TSSOP packages
To ensure the high-impedance state during power up or power down,
OE should be tied to VCC through a pullup resistor.
APPLICATIONS:
• 3.3V High Speed Bus Switching and Bus Isolation
FUNCTIONALBLOCKDIAGRAM
SIMPLIFIED SCHEMATIC, EACH SWITCH
2
18
SW
A1
B1
B8
A
B
9
11
SW
A8
19
OE
OE
TheIIDNTloDgoUisaSregTistRereIdtAradLemarTkofEIntMegraPtedEDeRvicAeTeTchUnolRogyE,Inc. RANGE
February 19, 2009
1
© 2006 Integrated Device Technology, Inc.
DSC-5170/4
IDT74CBTLV3245
LOW-VOLTAGEOCTALBUSSWITCH
INDUSTRIALTEMPERATURERANGE
ABSOLUTEMAXIMUMRATINGS(1)
PINCONFIGURATION
Symbol
VCC
Description
Max
–0.5 to +4.6
–0.5 to +4.6
128
Unit
V
SupplyVoltage Range
20
1
VCC
OE
B1
B2
B3
NC
VI
Input Voltage Range
V
Continuous Channel Current
Input Clamp Current, VI/O < 0
Storage Temperature
mA
mA
° C
2
19
18
17
16
A1
IIK
–50
3
A2
TSTG
–65 to +150
NOTE:
4
5
A3
A4
A5
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.
B4
6
15
14
13
B5
7
A6
A7
B6
8
12
11
A8
9
B7
B8
PINDESCRIPTION
GND
10
Pin Names
Description
OutputEnable(ActiveLOW)
PortAInputs orOutputs
PortBInputs orOutputs
OE
Ax
Bx
QSOP / TSSOP
TOP VIEW
FUNCTIONTABLE(1)
Input
OE
L
Operation
A Port = B Port
Isolation
H
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
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
IDT74CBTLV3245
LOW-VOLTAGEOCTALBUSSWITCH
INDUSTRIALTEMPERATURERANGE
DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE
FollowingConditionsApplyUnlessOtherwiseSpecified:
OperatingConditions:TA =–40°Cto+85°C
Symbol
VIK
Parameter
Control Inputs, Data Inputs
Control Inputs
Test Conditions
VCC = 3V, II = –18mA
Min.
—
—
—
—
—
—
—
Typ.(1)
—
Max.
–1.2
1
Unit
V
II
VCC = 3.6V, VI = VCC or GND
—
µA
µ A
µ A
µ A
µ A
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)
VO = 3V or 0, OE = VCC
VI = 0
—
—
—
—
—
—
—
6
5
—
8
pF
VCC = 2.3V
IO = 64mA
IO = 24mA
IO = 15mA
IO = 64mA
IO = 24mA
IO = 15mA
Typ. at VCC = 2.5V
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 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.
SWITCHINGCHARACTERISTICS
VCC = 2.5V ± 0.2V
VCC = 3.3V ± 0.3V
Max.
Symbol Parameter
Min.
Max.
Min.
Unit
(1)
tPD
PropagationDelay
−
0.15
−
0.25
ns
A to B or B to A
tEN
tDIS
OutputEnableTime
1
1
4.5
5
1
1
4.2
5
ns
ns
OE to A or B
OutputDisableTime
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
IDT74CBTLV3245
LOW-VOLTAGEOCTALBUSSWITCH
INDUSTRIALTEMPERATURERANGE
TESTCIRCUITSANDWAVEFORMS
TESTCONDITIONS
VIH
VT
0V
SAME PHASE
INPUT TRANSITION
tPHL
tPHL
tPLH
tPLH
VOH
VT
VOL
Symbol
VLOAD
VIH
VCC(1)=3.3V±0.3V
VCC(2)=2.5V±0.2V
Unit
V
OUTPUT
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
500Ω
tPZL
tPLZ
VIN
VOUT
Pulse(1,2)
Generator
VLOAD/2
D.U.T.
VLOAD/2
VOL + VLZ
VOL
OUTPUT
NORMALLY
LOW
SWITCH
CLOSED
VT
500Ω
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
tPD
Switch
VLOAD
GND
Open
4
IDT74CBTLV3245
LOW-VOLTAGEOCTALBUSSWITCH
INDUSTRIALTEMPERATURERANGE
ORDERINGINFORMATION
XXX
XX
XX
CBTLV
Temp. Range
Device Type Package
Quarter-size Small Outline Package
QSOP - Green
Thin Shrink Small Outline Package
TSSOP - Green
Q
QG
PG
PGG
3245
74
Low-Voltage Octal Bus Switch
–40°C to +85°C
CORPORATE HEADQUARTERS
6024 Silver Creek Valley Road
San Jose, CA 95138
for SALES:
800-345-7015 or 408-284-8200
fax: 408-284-2775
for Tech Support:
logichelp@idt.com
www.idt.com
5
相关型号：
IDT74CBTLV3251P
Multiplexer And Demux/Decoder, CBTLV/3B Series, 1-Func, 1 Line Input, 8 Line Output, True Output, CMOS, PDSO16, TSSOP-16
IDT
IDT74CBTLV3251PG8
Multiplexer And Demux/Decoder, CBTLV/3B Series, 1-Func, 1 Line Input, 8 Line Output, True Output, CMOS, PDSO16, TSSOP-16
IDT
IDT74CBTLV3251PGG
Multiplexer And Demux/Decoder, CBTLV/3B Series, 1-Func, 1 Line Input, 8 Line Output, True Output, CMOS, PDSO16, GREEN, TSSOP-16
IDT
IDT74CBTLV3251PGG8
Multiplexer And Demux/Decoder, CBTLV/3B Series, 1-Func, 1 Line Input, 8 Line Output, True Output, CMOS, PDSO16, GREEN, TSSOP-16
IDT
IDT74CBTLV3251PY8
Multiplexer And Demux/Decoder, CBTLV/3B Series, 1-Func, 1 Line Input, 8 Line Output, True Output, CMOS, PDSO16, SSOP-16
IDT
IDT74CBTLV3251PYG
Multiplexer And Demux/Decoder, CBTLV/3B Series, 1-Func, 1 Line Input, 8 Line Output, True Output, CMOS, PDSO16, SSOP-16
IDT
IDT74CBTLV3251QG8
Multiplexer And Demux/Decoder, CBTLV/3B Series, 1-Func, 1 Line Input, 8 Line Output, True Output, CMOS, PDSO16, GREEN, QSOP-16
IDT
©2020 ICPDF网 联系我们和版权申明