Combinational Logic SCQF Level 7

Learn about the basis of digital electronics, potentially leading to more advanced work in this area of study.


Why take this course?

This Unit was developed for the HNC/HND Electronics Group Awards, or may be taken as a stand alone HN Unit. It has been designed to allow you to develop knowledge, understanding and skills associated with combinational logic, which is the basis of digital electronics and underpins more advanced work in this area of study. 

The early part of the unit deals with the basic elements of digital electronics and should provide you with a good grounding in this subject area. You will learn to interpret manufacturers data sheets for a range of TTL and CMOS devices, meaning you have the knowledge to select the most appropriate device for a particular application. Those who have studied digital in an earlier course will be provided with an opportunity for revision. 

Credit points and level: 1 HN credit at SCQF level 7: (8 SCQF credit points at SCQF level 7).

What you will experience

On this course you will learn to use truth tables, Karnaugh maps and DeMorgan's theorems to produce the most economic design to meet the application requirements. You will use computer software to simulate and test your design solution for functional accuracy. By the end of the unit you will be expected to design and construct circuits which meet stated design requirements using the minimum number of devices, and will be able to check, using logic measuring equipment, that circuits meet the design brief. 

It is recommended that the assessment for all four outcomes in this unit are combined into one assessment paper and a practical exercise. The final assessment will take the form of a written test paper lasting two hours, which will be taken under supervised, controlled closed book conditions. You will not be allowed to take notes, textbooks etc into the assessment. You will however have access to device data sheets. 

The practical exercise will allow you to show evidence of your practical expertise. There will be a design and construct exercise where you will be expected to design and build a circuit to perform a specified function. This is likely to be conducted in a laboratory at a different time from the written assessment, and will last no more than three hours.

female wearing blue overalls and protective glasses

Key facts

Mode of study
Distance Learning
Method of study

This course requires you to manage your workload independently, and will involve attendance at a campus or centre - often for assessment purposes only.

Subject area

Entry requirements

Candidates should have a basic knowledge of digital electronic engineering. This may be evidenced by the possession of Higher Electronics, Intermediate 2 Electronic and Electrical Fundamentals or the following National Qualification Units:

  • E9S3 04 Combinational Logic
  • E9SB 12 Logic Families and Digital System Analysis

What you will need

Students are responsible for securing any unit resources listed.

What you need to know

Additional costs

This course involves an additional SQA fee. Please see our Courses Explained page for further information on costs.

Anything else?

This is a Distance Learning course which means you can study at home, in the workplace or wherever you choose at times that are convenient for you. You do not have any classes to attend. The materials for this course are provided as webpages for you to work through online. As you progress through the course materials you will find explanations of each feature, followed by practical exercises. You will be supported throughout the course by a specialist Distance Learning Tutor.

As you progress they will continue to make regular contact to offer support and guidance, usually by email but sometimes by phone, to ensure you are making good progress and to support your learning throughout. You must be able to study independently through the course materials.

Whilst studying with Business & Community Development, you will have access to the Library+ sites and the Digital Skills Space. You will also have technical and administrative support from Business & Community Development team.

Fee Waivers

Please note that fee waivers or funding may apply. Find out more about funding for part-time courses.

Next steps




This course requires some attendance at College, often for assessment purposes only. Please enquire about expectations for your specific course when booking.

Attendance is usually at the Aberdeen City Campus or Fraserburgh Campus.

Pre-entry guidance is required prior to booking a place on this course. Please contact Distance Learning Co-ordinators Sheena Thomson or Susan Smith by email, or phone 01346 586136 in the first instance for more information. When submitting your distance learning application form, please ensure you attach the additional information sheet listing qualifications and previous knowledge with your application. You may be required to attend College for assessment. Please check if this is a requirement for your course.

Duration Fees* Code
40 Hours over 6 Months £125.00
Paper applications only

Paper applications

You must submit a paper application form and additional information form for this course and return them to us completed and signed.

Completed forms should be returned to the following freepost address:

The Student Information & Admissions Manager
North East Scotland College
Aberdeen City Campus

Should you have any problems with your application, please contact the Student Advice Centre:

Telephone: 01224 612330

If you take up a place on a College course, at the start of the course you will be asked to sign an enrolment form. In signing the form and/or taking up a place on a College course, you will enter into a contract with the College and be bound by the North East Scotland College Standard Terms and Conditions of Study. Copies of the Terms and Conditions are available for inspection on notice boards and at various locations throughout the College, at the College Reception, on the College website:, or can be obtained on request from the Student Funding and Admissions Manager, North East Scotland College, Aberdeen City Campus, Gallowgate, Aberdeen AB25 1BN. Please note that courses are offered subject to (a) there being sufficient numbers of enrolments and (b) the availability of resources. The College reserves its right (i) not to run courses where the number of students is considered insufficient or where resources are unavailable and (ii) in certain circumstances, to refuse admission to an individual applicant.