Datasheet



SDAS022C − DECEMBER 1982 − REVISED JANUARY 1995
Copyright 1995, Texas Instruments Incorporated
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
High Capacitive-Drive Capability
ALS804A Has Typical Delay Time of 4 ns
(C
L
= 50 pF) and Typical Power Dissipation
of 3.4 mW Per Gate
AS804B Has Typical Delay Time of 2.6 ns
(C
L
= 50 pF) and Typical Power Dissipation
of Less Than 9 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
NAND drivers. They perform the Boolean
functions Y = A
B or Y = A + B in positive logic.
The SN54ALS804A and SN54AS804B are
characterized for operation over the full military
temperature range of −55°C to 125°C. The
SN74ALS804A and SN74AS804B are
characterized for operation from 0°C to 70°C.
FUNCTION TABLE
(each driver)
INPUTS
OUTPUT
A B
OUTPUT
Y
H H L
L XH
X L H
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
1
1A
2
1B
2Y
6
4
2A
5
2B
3Y
9
7
3A
8
3B
4Y
11
12
4A
13
4B
5Y
14
15
5A
16
5B
6Y
17
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
SN54ALS804A, SN54AS804B...J PACKAGE
SN74ALS804A, SN74AS804B...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
SN54ALS804A, SN54AS804B...FK PACKAGE
(TOP VIEW)
1Y
1B
1A
4A
4B 6B
3Y
G
ND
4Y
V
CC
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