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LS245 데이터시트(PDF) 1 Page - Texas Instruments

부품명 LS245
상세설명  OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
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제조업체  TI [Texas Instruments]
홈페이지  http://www.ti.com
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LS245 데이터시트(HTML) 1 Page - Texas Instruments

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SN54LS245, SN74LS245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SDLS146A – OCTOBER 1976 – REVISED FEBRUARY 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D 3-State Outputs Drive Bus Lines Directly
D PNP Inputs Reduce dc Loading on Bus
Lines
D Hysteresis at Bus Inputs Improves Noise
Margins
D Typical Propagation Delay Times Port to
Port, 8 ns
TYPE
IOL
(SINK
CURRENT)
IOH
(SOURCE
CURRENT)
SN54LS245
12 mA
–12 mA
SN74LS245
24 mA
–15 mA
description
These octal bus transceivers are designed for
asynchronous two-way communication between
data buses. The control-function implementation
minimizes external timing requirements.
The devices allow 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 disable the device so that the
buses are effectively isolated.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube
SN74LS245N
SN74LS245N
SOIC – DW
Tube
SN74LS245DW
LS245
0
°C to 70°C
SOIC – DW
Tape and reel
SN74LS245DWR
LS245
SOP – NS
Tape and reel
SN74LS245NSR
74LS245
SSOP – DB
Tape and reel
SN74LS245DBR
LS245
CDIP – J
Tube
SN54LS245J
SN54LS245J
–55
°Cto125°C
CDIP – J
Tube
SNJ54LS245J
SNJ54LS245J
–55
°C to 125°C
CFP – W
Tube
SNJ54LS245W
SNJ54LS245W
LCCC – FK
Tube
SN54LS245FK
SN54LS245FK
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
Copyright
 2002, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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.
3
2
1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
B1
B2
B3
B4
B5
A3
A4
A5
A6
A7
SN54LS245 . . . FK PACKAGE
(TOP VIEW)
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
VCC
OE
B1
B2
B3
B4
B5
B6
B7
B8
SN54LS245 ...J OR W PACKAGE
SN74LS245 ... DB, DW, N, OR NS PACKAGE
(TOP VIEW)
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.


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