поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

MC14XXXBD датащи(PDF) 7 Page - Motorola, Inc

номер детали MC14XXXBD
подробное описание детали  NBCD Adder
Download  13 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  MOTOROLA [Motorola, Inc]
домашняя страница  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

MC14XXXBD датащи(HTML) 7 Page - Motorola, Inc

Back Button MC14XXXBD Datasheet HTML 3Page - Motorola, Inc MC14XXXBD Datasheet HTML 4Page - Motorola, Inc MC14XXXBD Datasheet HTML 5Page - Motorola, Inc MC14XXXBD Datasheet HTML 6Page - Motorola, Inc MC14XXXBD Datasheet HTML 7Page - Motorola, Inc MC14XXXBD Datasheet HTML 8Page - Motorola, Inc MC14XXXBD Datasheet HTML 9Page - Motorola, Inc MC14XXXBD Datasheet HTML 10Page - Motorola, Inc MC14XXXBD Datasheet HTML 11Page - Motorola, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 13 page
background image
MOTOROLA CMOS LOGIC DATA
7
MC14560B
The truth table and Karnaugh maps for sign, overflow, and
End Around Carry are shown in Figures 6 and 7. Note the
use of BS′ from the exclusive–OR of Add/Sub and BS. BS′
eliminates Add/Sub as a variable in the truth table. As an ex-
ample of truth table generation, consider an n decade adder/
subtracter where AS = “0”, BS = “1”, and Add/Sub = “0”. B is
in 9’s complement form, 10N – 1 – B. Thus A + (10N – 1 – B)
= 10N – 1 + (A – B). There is no carry when A
v B, and the
sign is negative (sign = “1”). When AS and BS are opposite
states and Add/Sub is a “0” (add mode), no overflow can oc-
cur (overflow = “0”). The other output states are determined
in a similar manner (see Figure 6).
From the Karnaugh maps it is apparent that End Around
Carry is composed of the two symmetrical functions S2 and
S3 of three variables with AS BS′ Cout as the center of sym-
metry. This is the definition of the majority logic function
M3(ABC). Similarly the Sign is composed of the symmetrical
functions S2(3) and S3(3) but with the center of symmetry
translated to ASBS′ Cout. This is equivalent to the majority
function M3(ASBS′ Cout). Further evaluation of the maps and
truth table reveal that Overflow can be generated by the
exclusive–OR function of End Around Carry and Carry Out.
This analysis results in a minimum device count consisting of
one exclusive–OR package and one dual Majority Logic
package to implement BS′, EAC, Sign and Overflow. The
logic connections of these devices are shown in Figure 5.
The output sign, RS, complements the result of the add/
subtract operation when RS = “1”. This is required because
the adder performs 9’s complement arithmetic. Complement-
ing, when RS indicates the result is negative, restores sign
and magnitude convention.
Several variations of the adder/subtracter are possible.
For example, 9’s complement is available at the output of the
NBCD adders, and output complementers are eliminated if
sign and magnitude output is not required.
Figure 6. Subtraction of Unsigned NBCD Numbers
A
B
VDD
Z
C
C
A1
A2
A3
A4
F1
F2
F3
F4
Cn
Cin
A1
A2
A3
A4
B1
B2
B3
AB
Cout
Cn + 1
S1
S2
S3
S4
MC14560
A1
A2
A3
A4
Z
C
C
VDD
F1
F2
F3
F4
MC14561
FROM Cout
OF MOST SIGNIFICANT
DECADE
RESULT, R
LEAST
SIGNIFICANT
DECADE
A1
B1
A2
B2
An
Bn
MOST
SIGNIFICANT
DECADE
Cin
C
Cout
Cin
C
Cout
Cin
C
Cout
R1
R2
Rn
“0” INDICATES
UNDERFLOW
(NEGATIVE RESULT)
(a) Basic Subtracter Block
(b) n–Decade Subtracter
Typical Subtract Time = 0.6 + 0.4n
µs where n = Number of Decades
MC14561
BASIC
SUBTRACT
BLOCK
R1


Аналогичный номер детали - MC14XXXBD

производительномер деталидатащиподробное описание детали
logo
Motorola, Inc
MC14XXXBD MOTOROLA-MC14XXXBD Datasheet
223Kb / 6P
   QUAD 2 INPUT NAND SCHMITT TRIGGER
MC14XXXBD MOTOROLA-MC14XXXBD Datasheet
227Kb / 8P
   Dual Schmitt Trigger
MC14XXXBD MOTOROLA-MC14XXXBD Datasheet
704Kb / 15P
   SYNCHRONUS PRESETTABLE 4-BIT COUNTERS
MC14XXXBD MOTOROLA-MC14XXXBD Datasheet
100Kb / 5P
   Hex Level Shifter for TTL to CMOS or CMOS to CMOS
REV 3
MC14XXXBD MOTOROLA-MC14XXXBD Datasheet
266Kb / 8P
   24-Stage Frequency Driver
More results

Аналогичное описание - MC14XXXBD

производительномер деталидатащиподробное описание детали
logo
STMicroelectronics
HCC4560B STMICROELECTRONICS-HCC4560B Datasheet
201Kb / 6P
   NBCD ADDER
logo
Fuji Electric
EDS9-2I FUJI-EDS9-2I Datasheet
207Kb / 3P
   FC SERIES ADDER
logo
Fairchild Semiconductor
74F583 FAIRCHILD-74F583 Datasheet
52Kb / 5P
   4-Bit BCD Adder
logo
ON Semiconductor
MC14008B ONSEMI-MC14008B_05 Datasheet
107Kb / 8P
   4?묪it Full Adder
August, 2005 ??Rev. 6
logo
NXP Semiconductors
74F583 PHILIPS-74F583 Datasheet
120Kb / 8P
   4-bit BCD adder
1989 Apr 06
logo
ON Semiconductor
MC14008BCPG ONSEMI-MC14008BCPG Datasheet
135Kb / 8P
   4-Bit Full Adder
April, 2013 ??Rev. 7
logo
National Semiconductor ...
CD4008BM NSC-CD4008BM Datasheet
124Kb / 6P
   4-Bit Full Adder
logo
Motorola, Inc
MC14008B MOTOROLA-MC14008B Datasheet
255Kb / 8P
   4-Bit Full Adder
logo
NXP Semiconductors
74F385 PHILIPS-74F385 Datasheet
64Kb / 6P
   Quad serial adder/subtractor
1989 Sep 20
logo
ON Semiconductor
MC14008B ONSEMI-MC14008B Datasheet
225Kb / 8P
   4-Bit Full Adder
March, 2000 ??Rev. 3
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com