SN54ALS86, SN54AS86A, SN74ALS86, SN74AS86A
QUADRUPLE 2-INPUT EXCLUSIVE-OR GATES
SDAS006B – APRIL 1982 – REVISED DECEMBER 1994
Copyright 1994, Texas Instruments Incorporated
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
• Package Options Include Plastic
Small-Outline (D) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
description
These devices contain four independent 2-input
exclusive-OR gates. They perform the Boolean
functions Y = A ⊕ B or Y = A
B + AB in positive
logic.
A common application is as a true/complement
element. If one of the inputs is low, the other input
is reproduced in true form at the output. If one of
the inputs is high, the signal on the other input is
reproduced inverted at the output.
The SN54ALS86 and SN54AS86A are
characterized for operation over the full military
temperature range of –55°C to 125°C. The
SN74ALS86 and SN74AS86A are characterized
for operation from 0°C to 70°C.
FUNCTION TABLE
(each gate)
INPUTS
OUTPUT
A B
Y
L L L
L HH
HLH
HHL
logic symbol
†
1
1A
2
1B
4
2A
5
2B
9
3A
10
3B
12
4A
13
4B
1Y
3
2Y
6
3Y
8
4Y
11
= 1
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
SN54ALS86, SN54AS86A ...J PACKAGE
SN74ALS86, SN74AS86A ...D OR N PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1A
1B
1Y
2A
2B
2Y
GND
V
CC
4B
4A
4Y
3B
3A
3Y
SN54ALS86, SN54AS86A . . . FK PACKAGE
(TOP VIEW)
3212019
910111213
4
5
6
7
8
18
17
16
15
14
4A
NC
4Y
NC
3B
1Y
NC
2A
NC
2B
1B
1A
NC
3Y
3A
V
4B
2Y
NC
CC
NC – No internal connection
GND
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.
SN54ALS86, SN54AS86A, SN74ALS86, SN74AS86A
QUADRUPLE 2-INPUT EXCLUSIVE-OR GATES
SDAS006B – APRIL 1982 – REVISED DECEMBER 1994
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
exclusive-OR logic
An exclusive-OR gate has many applications, some of which can be represented better by alternative logic
symbols.
EXCLUSIVE-OR
= 1
These are five equivalent exclusive-OR symbols valid for an ′ALS86 or ′AS86A gate in positive logic. Negation
may be shown at any two ports.
= 2k 2k + 1
LOGIC-IDENTITY ELEMENT EVEN-PARITY ELEMENT ODD-PARITY ELEMENT
The output is active (low) if
all inputs are at the same
logic level (i.e., A = B).
The output is active (low) if
an even number of inputs
(i.e., 0 or 2) are active.
The output is active (high) if
an odd number of inputs
(i.e., only 1 of the 2) are
active.
SN54ALS86, SN54AS86A, SN74ALS86, SN74AS86A
QUADRUPLE 2-INPUT EXCLUSIVE-OR GATES
SDAS006B – APRIL 1982 – REVISED DECEMBER 1994
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage, V
CC
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, V
I
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
: SN54ALS86 –55°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS86 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range –65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
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.
recommended operating conditions
SN54ALS86 SN74ALS86
MIN NOM MAX MIN NOM MAX
V
CC
Supply voltage 4.5 5 5.5 4.5 5 5.5 V
V
IH
High-level input voltage 2 2 V
V
IL
Low-level input voltage 0.7 0.8 V
I
OH
High-level output current –0.4 –0.4 mA
I
OL
Low-level output current 4 8 mA
T
A
Operating free-air temperature –55 125 0 70 °C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54ALS86 SN74ALS86
MIN TYP
‡
MAX MIN TYP
‡
MAX
V
IK
V
CC
= 4.5 V, I
I
= –18 mA –1.5 –1.5 V
V
OH
V
CC
= 4.5 V to 5.5 V, I
OH
= –0.4 mA V
CC
–2 V
CC
–2 V
I
OL
= 4 mA 0.25 0.4 0.25 0.4
OL
CC
=
.
I
OL
= 8 mA 0.35 0.5
I
I
V
CC
= 5.5 V, V
I
= 7 V 0.1 0.1 mA
I
IH
V
CC
= 5.5 V, V
I
= 2.7 V 20 20 µA
I
IL
V
CC
= 5.5 V, V
I
= 0.4 V –0.1 –0.1 mA
I
O
§
V
CC
= 5.5 V, V
O
= 2.25 V –20 –112 –30 –112 mA
I
CC
V
CC
= 5.5 V, All inputs at 4.5 V 3.9 5.9 3.9 5.9 mA
‡
All typical values are at V
CC
= 5 V, T
A
= 25°C.
§
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I
OS
.
switching characteristics (see Figure 1)
PARAMETER
FROM
INPUT
TO
OUTPUT
V
CC
= 4.5 V to 5.5 V,
C
L
= 50 pF,
R
L
= 500 Ω,
T
A
= MIN to MAX
¶
UNIT
SN54ALS86 SN74ALS86
MIN MAX MIN MAX
t
PLH
A or B
3 22 3 17
t
PHL
(other input low)
2 14 2 12
t
PLH
A or B
3 22 3 17
t
PHL
(other input high)
2 12 2 10
¶
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
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