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參數資料
| 型號： | SN54ALS245AFK |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| 中文描述： | 八路總線收發(fā)器與三態(tài)輸出 |
| 文件頁數： | 1/7頁 |
| 文件大?。?/td> | 112K |
| 代理商： | SN54ALS245AFK |
SN54ALS245A, SN54AS245, SN74ALS245A, SN74AS245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SDAS272 – NOVEMBER 1994
Copyright
1994, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
3-State Outputs Drive Bus Lines Directly
pnp Inputs Reduce dc Loading
Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK), and Standard Plastic (N)
and Ceramic (J) 300-mil DIPs
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 upon the logic level at the
direction-control (DIR) input. The output-enable
(OE) input can be used to disable the device so
that the buses are effectively isolated.
The -1 version of the SN74ALS245A is identical to
the
standard
version,
recommended maximum I
OL
is increased to
48 mA. There is no -1 version of the
SN54ALS245A.
except
that
the
The SN54ALS245A and SN54AS245 are
characterized for operation over the full military
temperature range of –55
°
C to 125
°
C. The
SN74ALS245A
and
characterized for operation from 0
°
C to 70
°
C.
SN74AS245
are
FUNCTION TABLE
INPUTS
OPERATION
OE
L
DIR
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
B1
B2
B3
B4
B5
A3
A4
A5
A6
A7
A
A
D
B
B
O
A
G
B
V
SN54ALS245A, SN54AS245 . . . 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
V
CC
OE
B1
B2
B3
B4
B5
B6
B7
B8
SN54ALS245A, SN54AS245 . . . J PACKAGE
SN74ALS245A, SN74AS245 . . . DW OR N 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.
相關PDF資料 |
PDF描述 |
|---|---|
| SN54AS27FK | TRIPLE 3-INPUT POSITIVE-NOR GATES |
| SN54ALS27AFK | TRIPLE 3-INPUT POSITIVE-NOR GATES |
| SN54AS286FK | 9-BIT PARITY GENERATORS/CHECKERS WITH BUS-DRIVER PARITY I/O PORT |
| SN54AS30FK | 8-INPUT POSITIVE-NAND GATES |
| SN54ALS30AFK | 8-INPUT POSITIVE-NAND GATES |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SN54ALS245AJ | 制造商:Texas Instruments 功能描述: |
| SN54ALS245J | 制造商:Texas Instruments 功能描述: |
| SN54ALS251J | 制造商:Texas Instruments 功能描述: |
| SN54ALS253J | 制造商:Texas Instruments 功能描述: |
| SN54ALS257J | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
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