www.德州仪器.com
特性
db, dgv, dw, ns, 或者 pw pACKAGE
(t运算 视图)
rgy pACKAGE
(t运算 视图)
1 20
10 11
2
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
OE
B1
B2
B3
B4
B5
B6
B7
A1
A2
A3
A4
A5
A6
A7
A8
DIR
B8
V
地
CC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DIR
A1
A2
A3
A4
A5
A6
A7
A8
地
V
CC
OE
B1
B2
B3
B4
B5
B6
B7
B8
描述/orderinginformation
SN74LV245AT
OCTALBUSTRANSCEIVER
with3-stateoutputs
SCLS605B–DECEMBER2004–REVISEDAUGUST2005
•
inputsarettl-voltagecompatible
•
I
止
supportspartial-电源-downmode
运作
•
4.5-vto5.5-vv
CC
运作
•
获得-upperformanceexceeds250maper
•
Typicalt
pd
of3.5nsat5v
JESD17
•
TypicalV
OLP
(outputgroundbounce)<0.8v
•
ESDProtectionExceedsJESD22
atV
CC
=5v,t
一个
=25
°
C
–2000-vhuman-bodymodel(a114-一个)
•
TypicalV
OHV
(outputv
OH
undershoot)>2.3v
atV
CC
=5v,t
一个
=25
°
c–1000-vcharged-devicemodel(c101)
xxxxxxx
•
supportsmixed-modevoltageoperationon
AllPorts
thisoctalbustransceiverisdesignedforasynchronoustwo-waycommunicationbetweendatabuses.这
控制-functionimplementationminimizesexternaltimingrequirements.
thesn74lv245atallowsdatatransmissionfromtheabustothebbusorfromthebbustotheabus,
dependingonthelogiclevelatthedirection-控制(dir)输入.theoutput-使能(oe)inputcanbeusedto
disablethedevicesothatthebusesareeffectivelyisolated.
ORDERINGINFORMATION
T
一个
包装
(1)
orderablepartnumbertop-sidemarking
QFN–RGYTapeandreelSN74LV245ATRGYRVV245
TubeSN74LV245ATDW
SOIC–DWLV245A
TapeandreelSN74LV245ATDWR
–40
°
Cto85
°
CSOP–NSTapeandreelSN74LV245ATNSR74LV245A
SSOP–DBTapeandreelSN74LV245ATDBRLV245A
TSSOP–PWTapeandreelSN74LV245ATPWRLV245AT
TVSOP–DGVTapeandreelSN74LV245ATGVRLV245A
(1)packagedrawings,standardpackingquantities,thermaldata,符号化,andpcbdesignguidelinesareavailableat
www.德州仪器.com/sc/包装.
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©2004–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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