概述
数据手册
替代型号DM74LS27N 概述
Triple 3-Input NOR Gate 三路3输入NOR门 逻辑芯片
DM74LS27N 数据手册
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PDF下载May 1986
Revised March 2000
DM74LS27
Triple 3-Input NOR Gate
General Description
This device contains three independent gates each of
which performs the logic NOR function.
Ordering Code:
Order Number Package Number
Package Description
DM74LS27M
DM74LS27N
M14A
N14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Y = A + B + C
Inputs
Output
A
L
B
L
C
L
Y
H
L
X
X
H
X
H
X
H
X
X
L
L
H = HIGH Logic Level
L = LOW Logic Level
X = Either LOW or HIGH Logic Level
© 2000 Fairchild Semiconductor Corporation
DS006359
www.fairchildsemi.com
Absolute Maximum Ratings(Note 1)
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Supply Voltage
Input Voltage
7V
7V
Operating Free Air Temperature Range
Storage Temperature Range
0°C to +70°C
−65°C to +150°C
Recommended Operating Conditions
Symbol
Parameter
Min
4.75
2
Nom
Max
Units
V
VCC
VIH
VIL
IOH
IOL
TA
Supply Voltage
5
5.25
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
V
0.8
−0.4
8
V
mA
mA
°C
0
70
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol Parameter Conditions
Input Clamp Voltage = Min, I = −18 mA
Typ
Min
Max
Units
(Note 2)
V
V
V
V
V
V
V
−1.5
V
V
I
CC
CC
I
HIGH Level
= Min, I = Max,
OH
OH
2.7
3.4
Output Voltage
LOW Level
= Max
IL
V
= Min, I = Max,
OL
OL
CC
0.35
0.25
0.5
Output Voltage
= Min
V
IH
I
= 4 mA, V = Min
0.4
0.1
OL
CC
I
Input Current @ Max Input Voltage
HIGH Level Input Current
V
= Max, V = 7V
mA
µA
I
CC
CC
CC
CC
I
I
V
V
V
= Max, V = 2.7V
20
IH
I
I
LOW Level Input Current
= Max, V = 0.4V
−0.36
−100
4
mA
mA
mA
mA
IL
I
I
Short Circuit Output Current
Supply Current with Outputs HIGH
Supply Current with Outputs LOW
= Max (Note 3)
= Max
−20
OS
I
V
2
CCH
CC
I
V
= Max
3.4
6.8
CCL
CC
Note 2: All typicals are at V = 5V, T = 25°C.
CC
A
Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Switching Characteristics
at VCC = 5V and T = 25°C
A
R
= 2 kΩ
L
C
= 15 pF
C = 50 pF
L
Symbol
Parameter
Units
L
Min
Max
Min
Max
t
t
Propagation Delay Time
PLH
3
13
5
18
15
ns
ns
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
PHL
3
10
4
www.fairchildsemi.com
2
Physical Dimensions inches (millimeters) unless otherwise noted
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
Package Number M14A
3
www.fairchildsemi.com
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Package Number N14A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
www.fairchildsemi.com
4
DM74LS27N 替代型号
| 型号 | 制造商 | 描述 | 替代类型 | 文档 |
| SN74LS27N | TI | TRIPLE 3-INPUT POSITIVE-NOR GATES | 类似代替 |
|
| SN74LS27NE4 | TI | TRIPLE 3-INPUT POSITIVE-NOR GATES | 类似代替 |
|
DM74LS27N 相关器件
| 型号 | 制造商 | 描述 | 价格 | 文档 |
| DM74LS27N/A+ | ETC | Triple 3-input NOR Gate | 获取价格 |
|
| DM74LS27N/B+ | ETC | Triple 3-input NOR Gate | 获取价格 |
|
| DM74LS28 | FAIRCHILD | Quad 2-Input NOR Buffer | 获取价格 |
|
| DM74LS283 | FAIRCHILD | 4-Bit Binary Adder with Fast Carry | 获取价格 |
|
| DM74LS283 | NSC | 4-Bit Binary Adders with Fast Carry | 获取价格 |
|
| DM74LS283CW | FAIRCHILD | 暂无描述 | 获取价格 |
|
| DM74LS283J | TI | IC,BINARY ADDER,LS-TTL,DIP,16PIN,CERAMIC | 获取价格 |
|
| DM74LS283J/A+ | TI | IC,BINARY ADDER,LS-TTL,DIP,16PIN,CERAMIC | 获取价格 |
|
| DM74LS283M | FAIRCHILD | 4-Bit Binary Adder with Fast Carry | 获取价格 |
|
| DM74LS283M | NSC | 4-Bit Binary Adders with Fast Carry | 获取价格 |
|
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