The design and construction of electronic circuits
to solve practical problems is an essential
technique in the fields of electronic engineering
and computer engineering.

With this board the students can study the
fundamentals of digital logic, the theorems of
Boolean algebra, the logic functions, the
karnaugh’s maps, the logic gates NOT‐AND‐OR‐
NAND‐NOR, the flip‐flops and the logic families
TTL and CMOS

**THEORETICAL TOPICS**

• Ideas of logic: logic connectives and fundamental
theorems of the Boolean algebra

• Binary system

• Logic functions

• Algebraic description of the logic networks and
the truth tables

• Theorems of the Boolean algebra

• Minimization techniques of logic functions
through theorem applications and Karnaugh
maps

• Logic gates and truth tables

• Fundamental logic operators

• NOT, AND, OR logic operators

• Operation of the AND and OR operators as
control devices in the transfer of logic signals

• OR‐EXCLUSIVE logic operator

• Canonical forms of a function

• Graphic representation of functions

• AND ‐ OR ‐ NOT function

• NAND and NOR logic operators

• Operation of the NAND and NOR operators as
control devices in the transfer of logic signals and
carrying out of logic functions

• Generalities and definition of flip‐flop

• S ‐ R flip‐flop, with NOR and NAND operators

• J ‐ K flip‐flop

• Master‐slave J ‐ K flip‐flop

• T and D flip‐flops

• Fundamental logic families

• TTL and CMOS families

• Characteristic parameters of the logic gates

• Interfacing of the logic families, outputs and
types of TTL circuits

• Interfacing from CMOS to TTL

• Interfacing from TTL to CMOS

• TTL with totem‐pole outputs
• The open‐collector gates

• Wired‐and function Page

• Types of TTL circuits

• Schotty and low power Schotty of advanced type
(AS/ALS)

• Interfacing with the bus

• An example of transmitter / receiver for bi‐
directional bus

• Fault simulation

**CIRCUIT BLOCKS**

• AND / NAND

• OR / NOR

• XOR / XNOR

• Open Collector

• SET / RESET Flip‐Flop

• D‐Type Flip‐Flop

• JK Flip‐Flop

• Tri‐State Output

• TTL / CMOS Comparison

• Data Bus Control

In addition, the Circuit Board contains:

• +5 V regulated supply

• Built‐in clock circuit

• Manual input signal control

Complete with theoretical and practical manual.

Dimensions of the board: 297x260mm

**DL 3155E20**

The design and construction of electronic circuits
to solve practical problems is an essential
technique in the fields of electronic engineering
and computer engineering.

With this board the students can study the
characteristics of a combinatory logic network
using devices such as encoders and decoders,
multiplexer and demultiplexers, D/A and A/D
converters, parity controllers, BCD/DEC
converters, counters, comparators, shift registers
and adders.

**THEORETICAL TOPICS**

• Definition and characteristics of a combinatory logic
network

• The BCD code

• DEC/BCD and BCD/DEC code converters

• Encoders

• Decoders

• Multiplexer

• Demultiplexer

• Parity

• Parity logic circuits

• Nine bit 74180 parity generator/detector

• Unipolar codes

• Bipolar codes

• A/D converters

• Staircase A/D converter

• ADC converter of parallel or flash type

• ADC converter with simple slope

• ADC converter with double slope

• D/A converters (DAC)

• D/A converter with weighed resistances

• D/A converter with R–2R network

• 4 bit asynchronous binary counter

• 4 bit synchronous binary counter

• Asynchronous decimal counter

• Synchronous decimal counter

• Up/down synchronous counters

• Adders

• Half adder

• Full adder

• Parallel binary adders – four‐bit adder

• Quantity comparators

• Four‐bit comparator

• Definition and classification of shift registers

• Operation principle

• 4 bit bi‐directional shift registers

• Applications

• Fault simulation

**CIRCUIT BLOCKS**

• BCD Decimal Decoder / BCD Priority Encoder

• ADC / DAC

• Multiplexer / Demultiplexer

• 7‐Segment Driver / Display

• Parity Generator / Checker

In addition, the Circuit Board includes the
following:

• +5 V regulated supply

• Built‐in clock circuit

• Built‐in pulse generator circuit

• Built‐in counter circuitry

• The 74LS42 decoder and LS147 encoder

• AD673 ADC and AD558 DAC

• The LS151 multiplexer and LS155
demultiplexer

• The LS280 7‐Segment decoder / driver

Complete with theoretical and practical manual.

Dimensions of the board: 297x260mm

**DL 3155E21**

The design and construction of electronic circuits
to solve practical problems is an essential
technique in the fields of electronic engineering
and computer engineering.

With this board the students can study the
fundamentals of digital logic, the theorems of
Boolean algebra, the combinatory networks, the
karnaugh’s maps, encoders and decoders,
multiplexers and demultiplexers and the
characteristics of the logic families of TTL and
CMOS.

**THEORETICAL TOPICS**

• Binary system

• Logic functions

• The algebraic description of the logic gates

• The truth tables

• The theorems of the Boolean Algebra

• Techniques for the minimization of the logic
functions through the application of the
theorems

• Fundamental logic operators

• NOT, AND and OR logic operators

• Use of the AND and OR operators as control
devices for the transfer of logic signals

• OR‐exclusive logic operator

• Classic form of a function

• Graphic representation of the functions

• AND‐OR‐NOT function

• NAND and NOR logic operators

• Use of the NAND and NOR operators as control
devices for the transfer of logic signals

• The TTL family

• The CMOS family

• Characteristic parameters of the logic gates

• Definition and characteristics of a combinatory
logic network

• The Karnaugh’ maps

• The BCD code

• Encoders, decoders, multiplexer and
demultiplexer

• Fault simulation

**CIRCUIT BLOCKS**
• Logic gates, Boolean Algebra, Karnaugh’s maps and
combinatory networks

• Encoder and decoder

• Multiplexer and demultiplexer

• Electric characteristics of the TTL logic gates

• The TTL logic family

• The CMOS logic family

Complete with theoretical and practical manual.

Dimensions of the board: 297x260mm

**DL 3155M18**

The design and construction of electronic circuits
to solve practical problems is an essential
technique in the fields of electronic engineering
and computer engineering.

With this board the students can study the
fundamentals of digital logic, the theorems of
Boolean algebra, the combinatory networks, the
karnaugh’s maps, encoders and decoders,
multiplexers and demultiplexers and the
characteristics of the logic families of TTL and
CMOS.

**THEORETICAL TOPICS**

• Flip‐flop S‐R, with NOR and NAND operators

• Flip‐flop J‐K

• Flip‐flop J‐K Master‐Slave

• Flip‐flop T and D

• Synchronous and asynchronous 4 bit binary
counter

• Synchronous and asynchronous decimal counter

• Parity generator

• Adders

• Definition, classification and operating principle
of the most common shift registers

• Fault simulation

**CIRCUIT BLOCKS**

• Flip‐flops

• Counters

• Shift registers

Complete with theoretical and practical manual.

Dimensions of the board: 297x260mm

**DL 3155M19R**

The design and construction of electronic circuits
to solve practical problems is an essential
technique in the fields of electronic engineering
and computer engineering.

With this board the students can study the
characteristics of an oscillator in low frequency,
in high frequency, of quartz and astable,
monostable and bistable multivibrator.

**THEORETICAL TOPICS**

• Characteristics of RC‐phase shift oscillator

• Characteristics of Wien bridge oscillator with BJT
transistor

• Characteristics of Wien bridge oscillator with
Operational amplifier

• Characteristics of Huth‐Kuehn oscillator

• Characteristics of Colpitts oscillator

• Characteristics of Hartley oscillator

• Characteristics of Meissner oscillator

• Characteristics of Crystal oscillator

• Characteristics of non‐inverting crystal oscillator

• Characteristics of astable, monostable and bistable

multivibrators with IC 555

• Fault simulation

**CIRCUIT BLOCKS**

• Low frequency oscillators:

Phase shift oscillator

Wien transistor oscillator

Wien OA oscillator

• High frequency oscillators:

Huth‐Kuehn oscillator

Colpitts oscillator

Hartley oscillator

Meissner oscillator

• Quartz frequency oscillators:

Sinusoidal crystal oscillator

CMOS non inverting crystal oscillator

• Astable – Monostable – Bistable multivibrators

Complete with theoretical and practical manual.

Dimensions of the board: 297x260mm

**DL 3155R22**

The design and construction of electronic circuits
to solve practical problems is an essential
technique in the fields of electronic engineering
and computer engineering.

With this board the students can study the
principal characteristics of the memories starting
from the elementary memory cells to reach the
memories EPROM and RAM.

**THEORETICAL TOPICS**

• Memory classification

• Terminology and main characteristics

• Elementary memory cells

• Structure and operating principles

• ROM memory

• RAM memory

• Sequential memory

• Fault simulation

**CIRCUIT BLOCKS**

• Elementary memory cells

• Types of memories: RAM and EPROM

Complete with theoretical and practical manual.

Dimensions of the board: 297x260mm

**DL 3155M20**

The design and construction of electronic circuits
to solve practical problems is an essential
technique in the fields of electronic engineering
and computer engineering.

With this board the students can study the
features of the multivibrators using both the
transistor BJT that the operational amplifier.

**THEORETICAL TOPICS**

• BJT bistable multivibrator

• Resolution or transition time

• Bistable multivibrator using the operational amplifiers

• BJT astable multivibrator

• Astable multivibrator using the operational amplifiers

• BJT monostable multivibrator

• Monostable multivibrator using the operational
amplifiers

• Schmitt trigger

• Schmitt trigger using the operational amplifiers

• Fault simulation

**CIRCUIT BLOCKS**

• Operation modes of a BJT bistable multivibrator
(flip-flop)

• BJT bistable multivibrator (flip-flop) using the
operational amplifiers

• Operation modes of a BJT astable multivibrator

• Astable multivibrator using the operational
amplifiers

• Operation modes of a BJT monostable
multivibrator

• Operation modes of a monostable multivibrator
using the operational amplifiers

• Operation modes of a BJT Schmitt trigger
• Schmitt trigger

Complete with theoretical and practical manual.

Dimensions of the board: 297x260mm

**DL 3155M22**