Texas Instruments SN74ALS805ADW, SN74ALS805ADWR, SN74ALS805AN, SNJ54AS805BFK, SNJ54AS805BJ Datasheet
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SN54ALS805A, SN54AS805B, SN74ALS805A, SN74AS805B
HEX 2-INPUT NOR DRIVERS
SDAS023C – DECEMBER 1982 – REVISED JANUARY 1995
Copyright 1995, Texas Instruments Incorporated
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
• High Capacitive-Drive Capability
• ′ALS805A Has Typical Delay Time of 4.2 ns
(C
L
= 50 pF) and Typical Power Dissipation
of 4.2 mW Per Gate
• ′AS805B Has Typical Delay Time of 2.6 ns
(C
L
= 50 pF) and Typical Power Dissipation
of 12 mW Per Gate
• Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK), and Standard Plastic (N)
and Ceramic (J) 300-mil DIPs
description
These devices contain six independent 2-input
NOR drivers. They perform the Boolean functions
Y = A + B
or Y = A • B in positive logic.
The SN54ALS805A and SN54AS805B are
characterized for operation over the full military
temperature range of –55°C to 125°C. The
SN74ALS805A and SN74AS805B are
characterized for operation from 0°C to 70°C.
FUNCTION TABLE
(each driver)
INPUTS
OUTPUT
A B
Y
H X L
X HL
LLH
logic symbol
†
logic diagram (positive logic)
1
1A
2
1B
4
2A
5
2B
7
3A
8
3B
12
4A
13
4B
1Y
3
2Y
6
3Y
9
4Y
11
15
5A
16
5B
18
6A
19
6B
5Y
14
6Y
17
1Y
3
2Y
6
3Y
9
4Y
11
5Y
14
6Y
17
≥1
1
1A
2
1B
4
2A
5
2B
7
3A
8
3B
12
4A
13
4B
15
5A
16
5B
18
6A
19
6B
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1A
1B
1Y
2A
2B
2Y
3A
3B
3Y
GND
V
CC
6B
6A
6Y
5B
5A
5Y
4B
4A
4Y
SN54ALS805A, SN54AS805B ...J PACKAGE
SN74ALS805A, SN74AS805B . . . DW OR N PACKAGE
(TOP VIEW)
3 2 1 20 19
910111213
4
5
6
7
8
18
17
16
15
14
6A
6Y
5B
5A
5Y
2A
2B
2Y
3A
3B
SN54ALS805A, SN54AS805B . . . FK PACKAGE
(TOP VIEW)
1Y1B1A
4A
4B 6B
3Y
GND
4Y
V
CC
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.
SN54ALS805A, SN54AS805B, SN74ALS805A, SN74AS805B
HEX 2-INPUT NOR DRIVERS
SDAS023C – DECEMBER 1982 – REVISED JANUARY 1995
2
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
: SN54ALS805A –55°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS805A 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
SN54ALS805A SN74ALS805A
MIN NOM MAX MIN NOM MAX
UNIT
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 –12 –15 mA
I
OL
Low-level output current 12 24 mA
T
A
Operating free-air temperature –55 125 0 70 °C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54ALS805A SN74ALS805A
PARAMETER
TEST CONDITIONS
MIN TYP‡MAX MIN TYP‡MAX
UNIT
V
IK
VCC = 4.5 V, II = –18 mA –1.2 –1.2 V
VCC = 4.5 V to 5.5 V, IOH = –0.4 mA VCC –2 VCC –2
IOH = –3 mA 2.4 3.2 2.4 3.2
V
OH
VCC = 4.5 V
IOH = –12 mA 2
V
IOH = –15 mA 2
IOL = 12 mA 0.25 0.4 0.25 0.4
V
OL
V
CC
= 4.5
V
IOL = 24 mA 0.35 0.5
V
I
I
VCC = 5.5 V, VI = 7 V 0.1 0.1 mA
I
IH
VCC = 5.5 V, VI = 2.7 V 20 20 µA
I
IL
VCC = 5.5 V, VI = 0.4 V –0.1 –0.1 mA
I
O
§
VCC = 5.5 V, VO = 2.25 V –20 –112 –30 –112 mA
I
CCH
VCC = 5.5 V, VI = 0 2 4 2 4 mA
I
CCL
VCC = 5.5 V, VI = 4.5 V 8 14 8 14 mA
‡
All typical values are at VCC = 5 V, TA = 25°C.
§
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
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