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SN74BCT245 データシート(PDF) 1 Page - Texas Instruments

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部品番号 SN74BCT245
部品情報  OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

SN74BCT245 データシート(HTML) 1 Page - Texas Instruments

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SN54BCT245, SN74BCT245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS013F – SEPTEMBER 1988 – REVISED APRIL 1994
Copyright
© 1994, Texas Instruments Incorporated
2–1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
State-of-the-Art BiCMOS Design
Significantly Reduces ICCZ
ESD Protection Exceeds 2000 V
Per MIL-STD-883C, Method 3015
3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
Package Options Include Plastic
Small-Outline (DW) and Shrink
Small-Outline (DB) Packages, Ceramic Chip
Carriers (FK) and Flatpacks (W), and
Standard Plastic and Ceramic 300-mil DIPs
(J, N)
description
These octal bus transceivers are designed for
asynchronous
communication
between
data
buses. The devices transmit data from the A bus
to the B bus or from the B bus to the A bus
depending upon the level at the direction-control
(DIR) input. The output-enable (OE) input can be
used to disable the device so the buses are
effectively isolated.
The SN74BCT245 is available in TI’s shrink
small-outline package (DB), which provides the
same I/O pin count and functionality of standard
small-outline packages in less than half the
printed-circuit-board area.
The SN54BCT245 is characterized for operation
over the full military temperature range of – 55
°C
to 125
°C. The SN74BCT245 is characterized for
operation from 0
°C to 70°C.
FUNCTION TABLE
INPUTS
OPERATION
OE
DIR
OPERATION
L
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
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
SN54BCT245 ...J OR W PACKAGE
SN74BCT245 . . . DB, DW, OR N PACKAGE
(TOP VIEW)
32
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
SN54BCT245 . . . FK PACKAGE
(TOP VIEW)
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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