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參數(shù)資料
| 型號： | VV245 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS |
| 中文描述： | 八路總線收發(fā)器具有三態(tài)輸出 |
| 文件頁數(shù)： | 1/19頁 |
| 文件大?。?/td> | 464K |
| 代理商： | VV245 |
www.ti.com
FEATURES
DB, DGV, DW, NS, OR PW PACKAGE
(TOP VIEW)
RGY PACKAGE
(TOP VIEW)
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
D
B
V
G
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
GND
V
CC
OE
B1
B2
B3
B4
B5
B6
B7
B8
DESCRIPTION/ORDERING INFORMATION
This octal bus transceiver is designed for asynchronous two-way communication between data buses. The
control-function implementation minimizes external timing requirements.
SN74LV245AT
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCLS605B–DECEMBER 2004–REVISED AUGUST 2005
Inputs Are TTL-Voltage Compatible
4.5-V to 5.5-V V
CC
Operation
Typical t
pd
of 3.5 ns at 5 V
Typical V
OLP
(Output Ground Bounce) <0.8 V
at V
CC
= 5 V, T
A
= 25
°
C
Typical V
OHV
(Output V
OH
Undershoot) >2.3 V
at V
CC
= 5 V, T
A
= 25
°
C
Supports Mixed-Mode Voltage Operation on
All Ports
I
off
Supports Partial-Power-Down Mode
Operation
Latch-Up Performance Exceeds 250 mA Per
JESD 17
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
xxxxxxx
The SN74LV245AT allows data transmission from the A bus to the B bus or from the B bus to the A bus,
depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to
disable the device so that the buses are effectively isolated.
ORDERING INFORMATION
T
A
PACKAGE
(1)
Tape and reel
Tube
Tape and reel
Tape and reel
Tape and reel
Tape and reel
Tape and reel
ORDERABLE PART NUMBER
SN74LV245ATRGYR
SN74LV245ATDW
SN74LV245ATDWR
SN74LV245ATNSR
SN74LV245ATDBR
SN74LV245ATPWR
SN74LV245ATGVR
TOP-SIDE MARKING
VV245
QFN – RGY
SOIC – DW
LV245A
–40
°
C to 85
°
C
SOP – NS
SSOP – DB
TSSOP – PW
TVSOP – DGV
74LV245A
LV245A
LV245AT
LV245A
(1)
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 2004–2005, Texas Instruments Incorporated
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