參數(shù)資料
型號: SN54ABT540
廠商: Texas Instruments, Inc.
英文描述: Octal Buffers/Drivers With 3-State Outputs(八緩沖器/驅(qū)動器(三態(tài)輸出))
中文描述: 八路緩沖器/驅(qū)動器與3態(tài)輸出(八緩沖器/驅(qū)動器(三態(tài)輸出))
文件頁數(shù): 1/5頁
文件大小: 124K
代理商: SN54ABT540
SN54ABT540, SN74ABT540
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS188C – FEBRUARY 1991 – REVISED JANUARY 1997
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
State-of-the-Art EPIC-
ΙΙ
B
BiCMOS Design
Significantly Reduces Power Dissipation
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
Typical V
OLP
(Output Ground Bounce) < 1 V
at V
CC
= 5 V, T
A
= 25
°
C
High-Drive Outputs (–32-mA I
OH
, 64-mA I
OL
)
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Chip Carriers (FK),
Plastic (N) and Ceramic (J) DIPs, and
Ceramic Flat (W) Package
description
The ’ABT540 octal buffers and line drivers are
ideal for driving bus lines or buffer memory
address registers. The devices feature inputs and
outputs on opposite sides of the package that
facilitate printed circuit board layout.
The 3-state control gate is a 2-input AND gate with
active-low inputs so that if either output-enable
(OE1 or OE2) input is high, all corresponding
outputs are in the high-impedance state.
To ensure the high-impedance state during power up or power down, OE should be tied to V
CC
through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN54ABT540 is characterized for operation over the full military temperature range of –55
°
C to 125
°
C. The
SN74ABT540 is characterized for operation from –40
°
C to 85
°
C.
FUNCTION TABLE
INPUTS
OE2
OUTPUT
Y
OE1
A
L
L
L
H
L
L
H
L
H
X
X
Z
X
H
X
Z
Copyright
1997, 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.
EPIC-
ΙΙ
B is a trademark of Texas Instruments Incorporated.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE1
A1
A2
A3
A4
A5
A6
A7
A8
GND
V
CC
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
SN54ABT540 . . . J OR W PACKAGE
SN74ABT540 . . . DB, DW, N, OR PW PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
Y1
Y2
Y3
Y4
Y5
A3
A4
A5
A6
A7
SN54ABT540 . . . FK PACKAGE
(TOP VIEW)
A
A
O
Y
Y
O
A
G
Y
V
C
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