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SN74BCT2245N Datasheet Preview

SN74BCT2245N Datasheet

OCTAL TRANSCEIVER AND LINE/MOS DRIVER

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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
SN74BCT2245
OCTAL TRANSCEIVER AND LINE/MOS DRIVER
WITH 3-STATE OUTPUTS
SCBS102C − FEBRUARY 1992 − REVISED MARCH 2003
DB, DW, N, OR NS PACKAGE
(TOP VIEW)
DIR 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND 10
20 VCC
19 OE
18 B1
17 B2
16 B3
15 B4
14 B5
13 B6
12 B7
11 B8
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
0°C to 70°C
SOIC − DW
Tube
Tape and reel
SN74BCT2245DW
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
OE DIR
OPERATION
L
L
B data to A bus
L
H A data to B bus
H
X
Isolation
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.
Copyright © 2003, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
1




etcTI

SN74BCT2245N Datasheet Preview

SN74BCT2245N Datasheet

OCTAL TRANSCEIVER AND LINE/MOS DRIVER

No Preview Available !

SN74BCT2245
OCTAL TRANSCEIVER AND LINE/MOS DRIVER
WITH 3-STATE OUTPUTS
SCBS102C − FEBRUARY 1992 − REVISED MARCH 2003
logic diagram (positive logic)
1
DIR
A1 2
19
OE
18
B1
schematic of A-port outputs
VCC
To Seven Other Channels
schematic of B-port outputs
VCC
33 Ω
Output
33 Ω
Output
GND
All resistor values shown are nominal.
GND
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443


Part Number SN74BCT2245N
Description OCTAL TRANSCEIVER AND LINE/MOS DRIVER
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