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參數(shù)資料
| 型號： | 74HC181 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 4-bit arithmetic logic unit |
| 中文描述： | 4位算術(shù)邏輯單元 |
| 文件頁數(shù)： | 5/20頁 |
| 文件大?。?/td> | 165K |
| 代理商： | 74HC181 |
1998 Jun 10
5
Philips Semiconductors
Product specification
4-bit arithmetic logic unit
74HC/HCT181
FUNCTION TABLES
Notes to the function tables
1.
Each bit is shifted to the next more significant position.
2.
Arithmetic operations expressed in 2s complement
notation.
H = HIGH voltage level
L = LOW voltage level
MODE SELECT
INPUTS
ACTIVE HIGH INPUTS AND
OUTPUTS
S
3
S
2
S
1
S
0
LOGIC
(M=H)
ARITHMETIC
(2)
(M=L; C
n
=H)
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
A
A + B
AB
logical 0
AB
B
A
⊕
B
AB
A + B
A
⊕
B
B
AB
logical 1
A + B
A + B
A
A
A + B
A + B
minus 1
A plus AB
(A + B) plus AB
A minus B minus 1
AB minus 1
A plus AB
A plus B
(A + B) plus AB
AB minus 1
A plus A
(1)
(A + B) plus A
(A + B) plus A
A minus 1
Notes to the function tables
1.
Each bit is shifted to the next more significant position.
2.
Arithmetic operations expressed in 2s complement
notation.
H = HIGH voltage level
L = LOW voltage level
MODE SELECT
INPUTS
ACTIVE LOW INPUTS AND
OUTPUTS
S
3
S
2
S
1
S
0
LOGIC
(M=H)
ARITHMETIC
(2)
(M=L; C
n
=L)
A minus 1
AB minus 1
AB minus 1
minus 1
A plus (A + B)
AB plus (A + B)
A minus B minus 1
A + B
A plus (A + B)
A plus B
AB plus (A + B)
A + B
A plus A
(1)
AB plus A
AB plus A
A
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
A
AB
A + B
logical 1
A + B
B
A
⊕
B
A + B
AB
A
⊕
B
B
A + B
logical 0
AB
AB
A
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74HC181D | 4-bit arithmetic logic unit |
| 74HC181N | 4-bit arithmetic logic unit |
| 74HCT181 | 4-bit arithmetic logic unit |
| 74HCT181D | 4-bit arithmetic logic unit |
| 74HC181N3 | DRILL BIT HIGH SPEED STEEL .052,1 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74HC181D | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4-bit arithmetic logic unit |
| 74HC181D-T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Fixed Point ALU |
| 74HC181N | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4-bit arithmetic logic unit |
| 74HC181N3 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4-bit arithmetic logic unit |
| 74HC182 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Look-ahead carry generator |
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