SN74ALS12ADR [ROCHESTER]
ALS SERIES, TRIPLE 3-INPUT NAND GATE, PDSO14, PLASTIC, SO-14;
| 型号： | SN74ALS12ADR |
| 厂家： | 
Rochester Electronics |
| 描述： | ALS SERIES, TRIPLE 3-INPUT NAND GATE, PDSO14, PLASTIC, SO-14 输入元件 光电二极管 逻辑集成电路 |
| 文件： | 总4页 (文件大小：723K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN54ALS12A, SN74ALS12A
TRIPLE 3-INPUT POSITIVE-NAND GATES
WITH OPEN-COLLECTOR OUTPUTS
SDAS008A – MARCH 1984 – REVISED MAY 1986
• Package Options Include Plastic Small
Outline Packages, Ceramic Chip Carriers,
and Standard Plastic and Ceramic 300-mil
DIPs
SN54ALS12A . . . J PACKAGE
SN74ALS12A . . . D OR N PACKAGE
(TOP VIEW)
V
1
2
3
4
5
6
7
14
13
12
11
10
9
1A
1B
2A
2B
2C
CC
• Dependable Texas Instruments Quality and
1C
1Y
3C
3B
3A
3Y
Reliability
description
These devices contain three independent 3-input
NAND gates with open-collector outputs. These
gates perform the Boolean functions Y = A•B•C or
Y = A+B+C in positive logic. The open-collector
outputs require pullup resistors to perform
correctly. They may be connected to other
open-collector outputs to implement active-low
wired-OR or active-high wired-AND functions.
Open-collector devices are often used to generate
2Y
GND
8
SN54ALS12A . . . FK PACKAGE
(TOP VIEW)
3
2
1
20 19
18
higher V
levels.
OH
1Y
NC
3C
NC
3B
2A
NC
2B
4
5
6
7
8
17
16
15
14
The SN54ALS12A is characterized for operation
over the full military temperature range of –55°C
to 125°C. The SN74ALS12A is characterized for
operation from 0°C to 70°C.
NC
2C
9 10 11 12 13
FUNCTION TABLE
(each gate)
INPUTS
OUTPUT
NC–No internal connection
A
H
L
B
H
X
L
C
H
X
X
L
Y
L
H
H
H
logic diagram (positive logic)
X
X
X
1A
1B
1C
1Y
†
logic symbol
1
&
2A
2B
2C
1A
1B
1C
2A
2B
2C
3A
2Y
3Y
2
12
6
1Y
13
3
3A
3B
3C
4
2Y
3Y
5
9
8
10
11
3B
3C
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
Pin numbers shown are for D, J, and N packages.
Copyright 1986, Texas Instruments Incorporated
5BASIC
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.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ALS12A, SN74ALS12A
TRIPLE 3-INPUT POSITIVE-NAND GATES
WITH OPEN-COLLECTOR OUTPUTS
SDAS008A – MARCH 1984 – REVISED MAY 1986
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
CC
Input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Off-state output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Operating free-air temperature range: SN54ALS12A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 125°C
SN74ALS12A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
recommended operating conditions
SN54ALS12A
MIN NOM MAX
SN74ALS12A
MIN NOM MAX
UNIT
V
V
V
V
Supply voltage
4.5
2
5
5.5
4.5
2
5
5.5
V
V
CC
IH
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output current
Operating free-air temperature
0.7
5.5
4
0.8
5.5
8
V
IL
V
OH
I
mA
°C
OL
T
A
–55
125
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54ALS12A
SN74ALS12A
PARAMETER
TEST CONDITIONS
UNIT
V
†
†
TYP
MIN
TYP
MAX
–1.5
0.4
MIN
MAX
–1.5
0.4
V
V
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 4.5 V,
I = –18 mA
I
IK
= 4.5 V,
= 4.5 V,
= 4.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
I
I
= 4 mA
= 8 mA
0.25
0.25
0.35
OL
V
OL
0.5
OL
I
I
I
I
I
I
V
= 5.5 V
0.1
0.1
0.1
mA
mA
µA
OH
I
OH
V = 7 V
0.1
I
V = 2.7 V
20
20
IH
I
V = 0.4 V
–0.1
0.6
–0.1
0.6
mA
mA
mA
IL
I
V = 0 V
0.32
1.2
0.32
1.2
CCH
I
V = 4.5 V
2.2
2.2
CCL
I
†
All typical values are at V
= 5 V, T = 25°C
A
CC
switching characteristics (see Note 1)
V
= 4.5 V to 5.5 V,
= 50 pF,
CC
C
R
L
L
FROM
TO
= 2 k Ω,
PARAMETER
(INPUT)
UNIT
(OUTPUT)
T
A
= MIN to MAX
SN54ALS12A SN74ALS12A
MIN
23
5
MAX
59
MIN
23
5
MAX
54
t
t
Any
Any
Y
Y
ns
ns
PLH
26
18
PHL
NOTE 1: Load circuit and voltage waveforms are shown in Section 1 of ALS/AS Logic Data Book, 1986.
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
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