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SN74BCT2245 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. SN74BCT2245
Description  OCTAL TRANSCEIVER AND LINE/MOS DRIVER WITH 3-STATE OUTPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN74BCT2245 Datasheet(HTML) 1 Page - Texas Instruments

 
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SN74BCT2245
OCTAL TRANSCEIVER AND LINE/MOS DRIVER
WITH 3-STATE OUTPUTS
SCBS102C – FEBRUARY 1992 – REVISED MARCH 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Operating Voltage Range of 4.5 V to 5.5 V
D State-of-the-Art BiCMOS Design
Significantly Reduces ICCZ
D B Port Has Equivalent 33-Ω Series
Resistors, So No External Resistors
Are Required
D ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
description/ordering information
The SN74BCT2245 octal transceiver and line/
MOS driver is designed for asynchronous
communication between data buses.
The device 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 disable the devices so that
both buses are effectively isolated.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The B-port outputs, which are designed to source or sink up to 12 mA, include 33-
Ω series resistors to reduce
overshoot and undershoot.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube
SN74BCT2245N
SN74BCT2245N
SOIC
DW
Tube
SN74BCT2245DW
BCT2245
0
°C to 70°C
SOIC – DW
Tape and reel
SN74BCT2245DWR
BCT2245
SOP – NS
Tape and reel
SN74BCT2245NSR
BCT2245
SSOP – DB
Tape and reel
SN74BCT2245DBR
BA245
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
FUNCTION TABLE
INPUTS
OPERATION
OE
DIR
OPERATION
L
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
DB, DW, N, OR NS 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
Copyright
 2003, Texas Instruments Incorporated
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 Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.


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