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參數(shù)資料
| 型號： | LC245A |
| 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> | 585K |
| 代理商： | LC245A |
www.ti.com
FEATURES
Operates From 1.65 V to 3.6 V
Inputs Accept Voltages to 5.5 V
Max t
pd
of 6.3 ns at 3.3 V
Typical V
OLP
(Output Ground Bounce)
<0.8 V at V
CC
= 3.3 V, T
A
= 25
°
C
Typical V
OHV
(Output V
OH
Undershoot)
>2 V at V
CC
= 3.3 V, T
A
= 25
°
C
I
off
Supports Partial-Power-Down Mode
Operation
Supports Mixed-Mode Signal Operation on All
Ports (5-V Input/Output Voltage With
3.3-V V
CC
)
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)
DESCRIPTION/ORDERING INFORMATION
This octal bus transceiver is designed for 1.65-V to
3.6-V V
CC
operation.
The SN74LVC245A is designed for asynchronous
communication between data buses. The device
transmits data 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 the
buses effectively are isolated.
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
DB, DGV, DW, N, 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
SN74LVC245A
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS218T–JANUARY 1993–REVISED FEBRUARY 2005
ORDERING INFORMATION
T
A
PACKAGE
(1)
ORDERABLE PART NUMBER
SN74LVC245AN
SN74LVC245ARGYR
SN74LVC245ADW
SN74LVC245ADWR
SN74LVC245ANSR
SN74LVC245ADBR
SN74LVC245APW
SN74LVC245APWR
SN74LVC245APWT
SN74LVC245ADGVR
SN74LVC245AGQNR
SN74LVC245AZQNR
TOP-SIDE MARKING
SN74LVC245AN
LC245A
PDIP – N
QFN – RGY
Tube of 20
Reel of 1000
Tube of 25
Reel of 2000
Reel of 2000
Reel of 2000
Tube of 70
Reel of 2000
Reel of 250
Reel of 2000
SOIC – DW
LVC245A
SOP – NS
SSOP – DB
LVC245A
LC245A
–40
°
C to 85
°
C
TSSOP – PW
LC245A
TVSOP – DGV
VFBGA – GQN
VFBGA – ZQN (Pb-Free)
LC245A
Reel of 1000
LC245A
(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 1993–2005, Texas Instruments Incorporated
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