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SN74ACT1284DW データシート(PDF) 1 Page - Texas Instruments

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部品番号 SN74ACT1284DW
部品情報  7-BIT BUS INTERFACES 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

SN74ACT1284DW データシート(HTML) 1 Page - Texas Instruments

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SN54ACT1284, SN74ACT1284
7BIT BUS INTERFACES
WITH 3STATE OUTPUTS
SCAS459D − NOVEMBER 1994 − REVISED OCTOBER 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D 4.5-V to 5.5-V VCC Operation
D Inputs Accept Voltages to 5.5 V
D Max tpd of 20 ns at 5 V
D 3-State Outputs Directly Drive Bus Lines
D Flow-Through Architecture Optimizes PCB
Layout
D Center-Pin VCC and GND Configurations
Minimize High-Speed Switching Noise
D ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
D Designed for the IEEE 1284-I (Level-1 Type)
and IEEE 1284-II (Level-2 Type) Electrical
Specifications
description/ordering information
The
’ACT1284
devices
are
designed
for
asynchronous two-way communication between
data buses. The control function minimizes
external timing requirements.
The devices allow data transmission in either the
A-to-B or the B-to-A direction for bits 1, 2, 3, and
4,
depending
on
the
logic
level
at
the
direction-control (DIR) input. Bits 5, 6, and 7,
however, always transmit in the A-to-B direction.
The output drive for each mode is determined by the high-drive (HD) control pin. When HD is high, the high drive
is delivered by the totem-pole configuration, and when HD is low, the outputs are open drain. This meets the
drive requirements as specified in the IEEE 1284-I (level-1 type) and the IEEE 1284-II (level-2 type) parallel
peripheral-interface specification.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC − DW
Tube
SN74ACT1284DW
ACT1284
SOIC − DW
Tape and reel
SN74ACT1284DWR
ACT1284
0
°C to 70°C
SOP − NS
Tape and reel
SN74ACT1284NSR
ACT1284
0
°C to 70°C
SSOP − DB
Tape and reel
SN74ACT1284DBR
AU284
TSSOP − PW
Tube
SN74ACT1284PW
AU284
TSSOP − PW
Tape and reel
SN74ACT1284PWR
AU284
CDIP − J
Tube
SNJ54ACT1284J
SNJ54ACT1284J
−55
°C to 125°C
CFP − W
Tube
SNJ54ACT1284W
SNJ54ACT1284W
−55 C to 125 C
LCCC − FK
Tube
SNJ54ACT1284FK
SNJ54ACT1284FK
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
 2003, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
A1
A2
A3
A4
GND
GND
A5
A6
A7
DIR
B1
B2
B3
B4
VCC
VCC
B5
B6
B7
HD
SN54ACT1284 ...J OR W PACKAGE
SN74ACT1284 . . . DB, DW, NS, OR PW PACKAGE
(TOP VIEW)
32
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
B3
B4
VCC
VCC
B5
A4
GND
GND
A5
A6
SN54ACT1284 . . . FK PACKAGE
(TOP VIEW)


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