Texas Instruments SN74ABT541BDBLE, SN74ABT541BDBR, SN74ABT541BDW, SN74ABT541BDWR, SN74ABT541BN Datasheet
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SN54ABT541, SN74ABT541B
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS093K – JANUARY 1991 – REVISED OCTOBER 1998
D
State-of-the-Art
EPIC-ΙΙB
BiCMOS Design
Significantly Reduces Power Dissipation
D
Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
D
T ypical V
at V
D
High-Impedance State During Power Up
= 5 V, TA = 25°C
CC
(Output Ground Bounce) < 1 V
OLP
and Power Down
D
High-Drive Outputs (–32-mA IOH, 64-mA IOL)
D
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Chip Carriers (FK),
Ceramic Flat (W) Package, and Plastic (N)
and Ceramic (J) DIPs
description
The SN54ABT541 and SN74ABT541B octal
buffers and line drivers are ideal for driving bus
lines or buffering memory address registers. The
devices feature inputs and outputs on opposite
sides of the package to facilitate printed circuit
board layout.
The 3-state control gate is a two-input AND gate
with active-low inputs so that if either
output-enable (OE1
outputs are in the high-impedance state.
or OE2) input is high, all eight
SN54ABT541 ...J OR W PACKAGE
SN74ABT541B . . . DB, DW, N, OR PW PACKAGE
SN54ABT541 . . . FK PACKAGE
A3
A4
A5
A6
A7
(TOP VIEW)
OE1
A1
A2
A3
A4
A5
A6
A7
A8
GND
(TOP VIEW)
3 2 1 20 19
4
5
6
7
8
910111213
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
A2A1OE1
A8
V
Y8
GND
CC
Y7
V
CC
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
18
17
16
15
14
Y6 OE2
Y1
Y2
Y3
Y4
Y5
When V
However, to ensure the high-impedance state above 2.1 V, OE
is between 0 and 2.1 V , the device is in the high-impedance state during power up or power down.
CC
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 SN54ABT541 is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74ABT541B is characterized for operation from –40°C to 85°C.
FUNCTION TABLE
OE1 OE2 A
L L L L
L LH H
HXX Z
XHX Z
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-ΙΙB is a trademark of Texas Instruments Incorporated.
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.
INPUTS
OUTPUT
Y
Copyright 1998, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1
SN54ABT541, SN74ABT541B
UNIT
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS093K – JANUARY 1991 – REVISED OCTOBER 1998
1
19
2
3
4
5
6
7
8
9
†
&
EN
1
18
17
16
15
14
13
12
11
logic symbol
OE1
OE2
A1
A2
A3
A4
A5
A6
A7
A8
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
logic diagram (positive logic)
OE1
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
1
19
218
A1
Y1
To Seven Other Channels
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
Input voltage range, V
Voltage range applied to any output in the high or power-off state, V
Current into any output in the low state, I
Input clamp current, I
Output clamp current, I
Package thermal impedance, θ
Storage temperature range, T
‡
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
–0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CC
(see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I
: SN54ABT541 96 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
–0.5 V to 5.5 V. . . . . . . . . . . . . . . . . . .
O
SN74ABT541B 128 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(VI < 0) –18 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IK
(VO < 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OK
(see Note 2): DB package 115°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
JA
DW package 97°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package 67°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package 128°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
‡
recommended operating conditions (see Note 3)
SN54ABT541 SN74ABT541B
MIN MAX MIN MAX
V
V
V
I
OH
I
OL
T
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
2
Supply voltage 4.5 5.5 4.5 5.5 V
CC
High-level input voltage 2 2 V
IH
Low-level input voltage 0.8 0.8 V
IL
High-level output current –24 –32 mA
Low-level output current 48 64 mA
Operating free-air temperature –55 125 –40 85 ° C
A
Implications of Slow or Floating CMOS Inputs
, literature number SCBA004.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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