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参数资料
| 型号： | 74ALS20 |
| 厂商： | NXP Semiconductors N.V. |
| 英文描述： | Dual 4-Input NAND gate |
| 中文描述： | 双路4输入与非门 |
| 文件页数： | 2/7页 |
| 文件大小： | 85K |
| 代理商： | 74ALS20 |
Philips Semiconductors
Product specification
74ALS20A
Dual 4-input NAND gate
2
1996 Jul 01
853–0859 01670
TYPE
TYPICAL
PROPAGATION DELAY
TYPICAL
SUPPLY CURRENT
(TOTAL)
74ALS20A
4.5ns
0.65mA
ORDERING INFORMATION
ORDER CODE
DESCRIPTION
COMMERCIAL RANGE
V
CC
= 5V
±
10%,
T
amb
= 0
°
C to +70
°
C
DRAWING
NUMBER
14-pin plastic DIP
74ALS20AN
SOT27-1
14-pin plastic SO
74ALS20AD
SOT108-1
PIN CONFIGURATION
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1A
1B
NC
1C
1D
1Y
GND
2Y
2A
2B
NC
2C
2D
V
CC
SC00024
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74ALS (U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
nA, nB, nC, nD
Data inputs
1.0/1.0
20
μ
A/0.1mA
nY
Data outputs
20/80
0.4mA/8mA
NOTE:
One (1.0) ALS unit load is defined as: 20
μ
A in the High state and 0.1mA in the Low state.
LOGIC SYMBOL
V
= Pin 14
GND = Pin 7
1
2
4
5
9
10
12
13
1A 1B 1C 1D 2A 2B 2C 2D
1Y
2Y
6
8
SC00025
IEC/IEEE SYMBOL
SF00068
&
6
8
1
2
4
5
9
10
12
13
LOGIC DIAGRAM
V
= Pin 14
GND = Pin 7
1A
1B
1C
1D
1Y
6
1
2
4
5
SC00026
2A
2B
2C
2D
2Y
8
9
10
12
13
FUNCTION TABLE
INPUTS
OUTPUT
nA
nB
nC
nD
nY
H
H
H
H
L
L
X
X
X
H
X
L
X
X
H
X
X
L
X
H
X
X
X
L
H
H =
L
X =
High voltage level
Low voltage level
Don’t care
=
相关PDF资料 |
PDF描述 |
|---|---|
| 74ALS20A | Dual 4-Input NAND gate |
| 74ALS20AD | Dual 4-Input NAND gate |
| 74ALS20AN | Dual 4-Input NAND gate |
| 74ALS240AD | Octal inverter buffer 3-State |
| 74ALS240A-1DB | Octal inverter buffer 3-State |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 74ALS20A | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Dual 4-Input NAND gate |
| 74ALS20AD | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Dual 4-Input NAND gate |
| 74ALS20AN | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Dual 4-Input NAND gate |
| 74ALS240A | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Octal inverter buffer 3-State |
| 74ALS240A-1 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Octal inverter buffer 3-State |
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