參數(shù)資料
型號(hào)： SN54ALS1804A
廠商： Texas Instruments, Inc.
英文描述： HEX 2-INPUT NAND DRIVERS
中文描述： 六角2輸入與非驅(qū)動(dòng)
文件頁數(shù)： 1/4頁
文件大小： 58K
代理商： SN54ALS1804A
SN54ALS1804A, SN54AS1804, SN74ALS1804A, SN74AS1804
HEX 2-INPUT NAND DRIVERS
SDAS042B – AUGUST 1984 – REVISED MAY 1986
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Copyright
1986, Texas Instruments Incorporated
1
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
A
B
H
H
L
X
X
L
OUTPUT
Y
L
H
H
6
1A
1B
7
2A
2B
3A
3B
9
10
12
13
4A
4B
5A
5B
17
18
20
1
8
1Y
2Y
11
3Y
14
4Y
16
&
6A
6B
3
4
5Y
19
6Y
2
1A
1B
1Y
2Y
2B
2A
3Y
3B
3A
4Y
4B
4A
5Y
5B
5A
6Y
6B
6A
logic symbol
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
logic diagram (positive logic)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
5B
6Y
6A
6B
V
CC
1A
1B
1Y
2A
2B
5A
5Y
4B
4A
4Y
GND
3Y
3B
3A
2Y
SN54ALS1804A, SN54AS1804 . . . J PACKAGE
SN74ALS1804A, SN74AS1804 . . . DW OR N PACKAGE
(TOP VIEW)
Use ’ALS804A or ’AS804 for chip carrier option.
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.
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