MARINDUQUE STATE UNIVERSITY
Panfilo M. Manguera Sr. Road
Tanza, Boac, Marinduque
BACHELOR OF SCIENCE IN COMPUTER ENGINEERING
Level III Re-accredited by the Accrediting Agency for Chartered Colleges Universities in the Philippines
(AACCUP, Inc.)
GOAL: Become the leading producer of engineering professionals, who are lifelong learners, with humane values and technologicallyadvanced knowledge and skills, through its curricular programs designed to meet clients’ and stakeholders’ highest level of
satisfaction in terms of quality of instruction, scientific researches and research-based extension projects.
D.I.S.C.I.P.L.I.N.E. is the foundation of success in engineering.
EXPERIMENT NO. 9
_______________________________________________________
LOGIC CIRCUITS AND DESIGN
CPPC 9/9L
Submitted by:
Privado, Carl Andrew J. (Team Leader)
Ingco, Aldwin Andrei C.
Labaguis, Noami Camille SJ.
Laurente, Jericho L.
BSCpE 2A
Submitted to:
ANTONIO JEROLD R. LANTORIA Jr., PCpE, MEng
Associate Professor I
April 30, 2025
Vision Statement: By 2030, MarSU is a globally recognized university, fostering academic excellence through research and
innovation.
Mission Statement: MarSU provides excellence in instruction, research, extension and production, responsive to the needs of the
21st century education in pursuit of global transformation.
Empowering minds, transforming lives, and advancing opportunities with a HEART
MARINDUQUE STATE UNIVERSITY
BACHELOR OF SCIENCE IN COMPUTER ENGINEERING
Panfilo M. Manguera Sr. Road
Tanza, Boac, Marinduque
Experiment No. 9
MULTIVIBRATORS & THE SR FLIP-FLOP
I.
MATERIALS
 Digital Trainer
 7400 IC
II.
PROCEDURES
1. Switch on the power supply.
2. Complete the table below to determine the truth table of this SR flip-flop.
INPUTS
OUTPUTS
D1
D2
IN1
IN2
IN3
IN4
0
0
0
0
0
0
0
1
0
1
0
1
1
0
1
0
1
0
1
1
1
1
1
1
3. What input signals are needed to produce a high output across IN3?
4. What input signals are needed to produce a high output across IN4?
5. What are the output signals (IN3/IN4) when both inputs are zero?
6. Turn off the power and interconnect the circuit shown. This is basically the
same above except for the clock input. Simply disconnect the short circuits
across the inputs of gates 1 and 3, then provide connection for the clock input
(D3/IN5). Initially set the DATA switches to low.
7. Determine the truth table for this clocked SR flip-flop.
INPUTS
D3 = 0
D1
D2
IN1
IN2
IN3
IN4
0
0
0
0
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
1
1
1
1
1
D3 = 1
IN3
IN4
1
0
0
1
1
0
1
1
Vision Statement: By 2030, MarSU is a globally recognized university, fostering academic excellence through research and
innovation.
Mission Statement: MarSU provides excellence in instruction, research, extension and production, responsive to the needs of the
21st century education in pursuit of global transformation.
Empowering minds, transforming lives, and advancing opportunities with a HEART
MARINDUQUE STATE UNIVERSITY
BACHELOR OF SCIENCE IN COMPUTER ENGINEERING
Panfilo M. Manguera Sr. Road
Tanza, Boac, Marinduque
8. What happens to the output when the clock input is low?
9. What happens to the output when the clock input is high?
Vision Statement: By 2030, MarSU is a globally recognized university, fostering academic excellence through research and
innovation.
Mission Statement: MarSU provides excellence in instruction, research, extension and production, responsive to the needs of the
21st century education in pursuit of global transformation.
Empowering minds, transforming lives, and advancing opportunities with a HEART
MARINDUQUE STATE UNIVERSITY
BACHELOR OF SCIENCE IN COMPUTER ENGINEERING
Panfilo M. Manguera Sr. Road
Tanza, Boac, Marinduque
III.
DOCUMENTATION
Vision Statement: By 2030, MarSU is a globally recognized university, fostering academic excellence through research and
innovation.
Mission Statement: MarSU provides excellence in instruction, research, extension and production, responsive to the needs of the
21st century education in pursuit of global transformation.
Empowering minds, transforming lives, and advancing opportunities with a HEART
MARINDUQUE STATE UNIVERSITY
BACHELOR OF SCIENCE IN COMPUTER ENGINEERING
Panfilo M. Manguera Sr. Road
Tanza, Boac, Marinduque
For Procedure 2
Vision Statement: By 2030, MarSU is a globally recognized university, fostering academic excellence through research and
innovation.
Mission Statement: MarSU provides excellence in instruction, research, extension and production, responsive to the needs of the
21st century education in pursuit of global transformation.
Empowering minds, transforming lives, and advancing opportunities with a HEART