參數資料
型號: MC14581
廠商: Motorola, Inc.
英文描述: Triple Processor Supervisory Circuits 8-MSOP-PowerPAD -40 to 85
中文描述: 4位算術邏輯單元
文件頁數: 5/7頁
文件大?。?/td> 230K
代理商: MC14581
MOTOROLA CMOS LOGIC DATA
5
MC14581B
BLOCK DIAGRAM
(ACTIVE LOW)
BLOCK DIAGRAM
(ACTIVE HIGH)
2
9
10
11
13
A0
A1
A2
A3
B0
B1
B2
B3
Cn
MC
23
21
19
1
22
20
18
7
8
F0
F1
F2
F3
WORD A
WORD B
CARRY IN
MODE CONTROL
14
16
17
15
A = B
Cn+4
G
P
OUTPUT
FUNCTION
COMPARISON OUTPUT
RIPPLE CARRY OUTPUT
LOOK AHEAD
CARRY OUTPUTS
S0 S1 S2 S3
6
5
4
3
FUNCTION
SELECT
INPUTS
VDD = PIN 24
VSS = PIN 12
2
9
10
11
13
A0
A1
A2
A3
B0
B1
B2
B3
Cn
MC
23
21
19
1
22
20
18
7
8
F0
F1
F2
F3
14
16
17
15
A = B
Cn+4
G
P
S0 S1 S2 S3
6
5
4
3
TRUTH TABLE
Function Select
Inputs/Outputs Active Low
Inputs/Outputs Active High
S3
S2
S1
S0
Logic
Function
(MC = H)
Arithmetic*
Function
(MC = L, Cn = L)
Logic
Function
(MC = H)
Arithmetic*
Function
(MC = L, Cn = 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
AB
A + B
Logic “1”
A + B
B
A
B
A + B
AB
A
B
B
A + B
Logic “0”
AB
AB
A
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
AB plus A
AB plus A
A
A
A + B
AB
Logic “0”
AB
B
A
B
AB
A + B
A
B
B
AB
Logic “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
(A + B) plus A
(A + B) plus A
A minus 1
* Expressed as two’s complements. For arithmetic function with Cn in the opposite state, the resulting
function is as shown plus 1.
相關PDF資料
PDF描述
MC14581BCL Triple Processor Supervisory Circuits 8-MSOP-PowerPAD -40 to 85
MC14581BCP Triple Processor Supervisory Circuits 8-SOIC -40 to 85
MC14581BDW Triple Processor Supervisory Circuits 8-SOIC -40 to 85
MC14582BCL Triple Processor Supervisory Circuits 8-SOIC -40 to 85
MC14582BCP Look-Ahead Carry Block
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