SN54ALS1804A Datasheet, PDF (1/4 Pages) Texas Instruments – HEX 2-INPUT NAND DRIVERS

SN54ALS1804A, SN54AS1804, SN74ALS1804A, SN74AS1804
HEX 2-INPUT NAND DRIVERS
• High Capacitive Drive Capability
• ’ALS1804A Has Typical Delay Time of 4 ns
(C_L = 50 pF) and Typical Power Dissipation
of 3.4 mW per Gate
• ’AS1804 Has Typical Delay Time of 2.6 ns
(C_L = 50 pF) and Typical Power Dissipation
of Less than 9 mW per Gate
• Center V_CC and GND Configuration
Provides Minimum Lead inductance in High
Current Switching Applications
• Package Options include Plastic Small
Outline Packages, Ceramic Chip Carriers,
and Standard Plastic and Ceramic 300-mil
DIPs
• Dependable Texas Instruments Quality and
Reliability
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 center pin configuration used in the
’ALS1804A and ’AS1804 provides a reduction of
lead inductance when compared to the ’ALS804A
and ’AS804B. This reduction of lead inductance
will minimize noise generated onto either the V_CC
or GND bus. This reduction is significant in high
current switching applications.
The SN54ALS1804A and SN54AS1804 are
characterized for operation over the full military
temperature range of – 55°C to 125°C. The
SN74ALS1804A and SN74AS1804 are charac-
terized for operation from 0°C to 70°C.
FUNCTION TABLE
(each driver)
INPUTS
AB
OUTPUT
Y
HH
L
LX
H
XL
H
SDAS042B – AUGUST 1984 – REVISED MAY 1986
SN54ALS1804A, SN54AS1804 . . . J PACKAGE
SN74ALS1804A, SN74AS1804 . . . DW OR N PACKAGE
(TOP VIEW)
5B ₁
6Y ₂
6A ₃
6B ₄
V_{CC 5}
1A ₆
1B 7
1Y 8
2A 9
2B 10
20 ^5A
19 ^5Y
18 ^4B
17 ^4A
16 ^4Y
15 ^GND
14 ^3Y
13 3B
12 3A
11 2Y
Use ’ALS804A or ’AS804 for chip carrier option.
logic symbol^†
6
1A
&
7
1B
9
2A
10
2B
12
3A
13
3B
17
4A
18
4B
20
5A
1
5B
3
6A
4
6B
8 _1Y
11 _2Y
14 _3Y
16 _4Y
19 _5Y
2 _6Y
† _{This symbol is in accordance with ANSI/IEEE Std 91-1984}
and IEC Publication 617-12.
logic diagram (positive logic)
1A
1Y
1B
2A
2Y
2B
3A
3Y
3B
4A
4Y
4B
5A
5Y
5B
6A
6Y
6B
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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1986, Texas Instruments Incorporated
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