SN74ALS12AN [TI]
Triple 3-Input Positive-NAND Gates With Open-Collector Outputs 14-PDIP 0 to 70;
| 型号： | SN74ALS12AN |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | Triple 3-Input Positive-NAND Gates With Open-Collector Outputs 14-PDIP 0 to 70 输出元件 输入元件 |
| 文件： | 总3页 (文件大小：59K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ꢀꢁ ꢂꢃ ꢄꢅ ꢀ ꢆꢇ ꢄ ꢈꢉ ꢀꢁꢊ ꢃꢄ ꢅꢀ ꢆ ꢇꢄ
ꢋ ꢌꢍꢎ ꢅꢏ ꢉꢐ ꢑꢍ ꢁꢎꢒꢋ ꢉ ꢎꢓ ꢀꢍꢋ ꢍ ꢔꢏꢑꢁ ꢄꢁꢕ ꢉꢖ ꢄꢋꢏ ꢀ
ꢗ ꢍꢋ ꢘꢉ ꢓꢎ ꢏꢁꢑꢙꢓ ꢅ ꢅ ꢏꢙꢋꢓ ꢌꢉꢓ ꢒꢋ ꢎꢒ ꢋꢀ
ꢚ
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.
ꢎꢌ ꢓ ꢕꢒ ꢙ ꢋꢍ ꢓꢁ ꢕ ꢄꢋꢄ ꢛꢜ ꢝ ꢞꢟ ꢠꢡ ꢢꢛꢞ ꢜ ꢛꢣ ꢤꢥ ꢟ ꢟ ꢦꢜꢢ ꢡꢣ ꢞꢝ ꢧꢥꢨ ꢩꢛꢤ ꢡꢢ ꢛꢞꢜ ꢪꢡ ꢢꢦ ꢫ
ꢎꢟ ꢞ ꢪꢥꢤ ꢢ ꢣ ꢤ ꢞꢜ ꢝꢞ ꢟ ꢠ ꢢ ꢞ ꢣ ꢧꢦ ꢤ ꢛꢝ ꢛꢤꢡ ꢢꢛ ꢞꢜꢣ ꢧꢦ ꢟ ꢢꢬ ꢦ ꢢꢦ ꢟ ꢠꢣ ꢞꢝ ꢋꢦꢭ ꢡꢣ ꢍꢜꢣ ꢢꢟ ꢥꢠ ꢦꢜꢢ ꢣ
ꢣ ꢢ ꢡ ꢜꢪ ꢡ ꢟꢪ ꢮ ꢡ ꢟꢟ ꢡ ꢜ ꢢꢯꢫ ꢎꢟ ꢞ ꢪꢥꢤ ꢢꢛꢞꢜ ꢧꢟ ꢞꢤ ꢦꢣ ꢣꢛ ꢜꢰ ꢪꢞꢦ ꢣ ꢜꢞꢢ ꢜꢦ ꢤꢦ ꢣꢣ ꢡꢟ ꢛꢩ ꢯ ꢛꢜꢤ ꢩꢥꢪ ꢦ
ꢢ ꢦ ꢣ ꢢꢛ ꢜꢰ ꢞꢝ ꢡ ꢩꢩ ꢧꢡ ꢟ ꢡ ꢠ ꢦ ꢢ ꢦ ꢟ ꢣ ꢫ
Copyright 1986, Texas Instruments Incorporated
5BASIC
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001
ꢀꢁ ꢂ ꢃꢄ ꢅ ꢀꢆ ꢇ ꢄꢈ ꢉ ꢀ ꢁꢊ ꢃꢄ ꢅ ꢀꢆ ꢇ ꢄ
ꢋ ꢌ ꢍ ꢎꢅ ꢏꢉ ꢐ ꢑꢍ ꢁ ꢎꢒ ꢋꢉ ꢎ ꢓꢀ ꢍ ꢋ ꢍꢔ ꢏ ꢑꢁꢄ ꢁꢕ ꢉꢖ ꢄꢋ ꢏꢀ
ꢗꢍ ꢋ ꢘ ꢉꢓ ꢎꢏꢁꢑꢙ ꢓꢅ ꢅꢏ ꢙꢋꢓ ꢌꢉ ꢓ ꢒꢋꢎ ꢒꢋꢀ
ꢚ
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
CC
= 5 V, T = 25°C
A
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
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POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001
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