參數(shù)資料
型號: MC14581BDW
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: Triple Processor Supervisory Circuits 8-SOIC -40 to 85
中文描述: 4000/14000/40000 SERIES, 4-BIT ARITHMETIC LOGIC UNIT, PDSO24
封裝: PLASTIC, SOIC-24
文件頁數(shù): 1/7頁
文件大?。?/td> 230K
代理商: MC14581BDW
MOTOROLA CMOS LOGIC DATA
Motorola, Inc. 1995
1
MC14581B
The MC14581B is a CMOS 4–bit ALU capable of providing 16 functions of
two Boolean variables and 16 binary arithmetic operations on two 14–bit
words. The level of the mode control input determines whether the output
function is logic or arithmetic. The desired logic function is selected by
applying the appropriate binary word to the select inputs (S0 thru S3) with
the mode control input high, while the desired arithmetic operation is
selected by applying a low voltage to the mode control input, the required
level to carry in, and the appropriate word to the select inputs. The word
inputs and function outputs can be operated with either active high or active
low data.
Carry propagate (P) and carry generate (G) outputs are provided to allow
a full look–ahead carry scheme for fast simultaneous carry generation for the
four bits in the package. Fast arithmetic operations on long words are
obtainable by using the MC14582B as a second order look ahead block. An
inverted ripple carry input (Cn) and a ripple carry output (Cn+4) are included
for ripple through operation.
When the device is in the subtract mode (LHHL), comparison of two 4–bit
words present at the A and B inputs is provided using the A = B output. It
assumes a high–level state when indicating equality. Also, when the ALU is
in the subtract mode the Cn+4 output can be used to indicate relative
magnitude as shown in this table:
Data
Level
Cn
H
L
H
L
Cn+4
H
H
L
L
Magnitude
A
A < B
A > B
A
Active
High
B
B
Active
Low
L
H
L
H
L
L
H
H
A
A < B
A > B
A
B
B
Functional and Pinout Equivalent to 74181.
Diode Protection on All Inputs
All Outputs Buffered
Supply Voltage Range = 3.0 Vdc to 18 Vdc
VDD
Vin, Vout
Iin, Iout
DC Supply Voltage
– 0.5 to + 18.0
V
Input or Output Voltage (DC or Transient)
– 0.5 to VDD + 0.5
±
10
V
Input or Output Current (DC or Transient),
per Pin
mA
PD
Tstg
TL
Power Dissipation, per Package
500
mW
Storage Temperature
– 65 to + 150
C
Lead Temperature (8–Second Soldering)
260
C
* Maximum Ratings are those values beyond which damage to the device may occur.
Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/ C From 65 C To 125 C
Ceramic “L” Packages: – 12 mW/ C From 100 C To 125 C
SEMICONDUCTOR TECHNICAL DATA
REV 3
1/94
L SUFFIX
CERAMIC
CASE 623
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBDW
TA = – 55
°
to 125
°
C for all packages.
Plastic
Ceramic
SOIC
P SUFFIX
PLASTIC
CASE 709
DW SUFFIX
SOIC
CASE 751E
PIN ASSIGNMENT
S0
S2
S3
A0
B0
MC
Cn
S1
B2
A2
B1
A1
VDD
P
Cn+4
G
5
4
3
2
1
10
9
8
7
6
14
15
16
17
18
19
20
13
11
12
21
22
23
24
F3
A = B
B3
A3
F2
VSS
F1
F0
相關PDF資料
PDF描述
MC14582BCL Triple Processor Supervisory Circuits 8-SOIC -40 to 85
MC14582BCP Look-Ahead Carry Block
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MC14583BCP Triple Processor Supervisory Circuits 8-MSOP-PowerPAD -40 to 85
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