Chapter 7_MSI Lgic Circuit

1 Lecture: DIGITAL SYSTEMS Nguyen Thanh Hai, PhD Chapter 7: MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 2 Nguyen Thanh Hai, PhD 7.1 Decoders 7.2 BCD-To-7-Segment Decoder/Drivers 7.3 Encoders 7.4 Multiplexers (Data Selectors) 7.5 Demultiplexers (Data Distributions) 7.6 Magnitude Comparator MSI Logic Circuits (Medium-Scale-Integration) MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 3 Nguyen Thanh Hai, PhD 7.1 Decoders 0 A 1 A 2 A M 1-N A            inputs N codesinput 2 N 1 O 2 O M 1-M O 0 O            outputs M codeinput each for high is output oneOnly Decoder General decoder diagram MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 4 Nguyen Thanh Hai, PhD 7.1 Decoders C B A O 7 O 6 O 5 O 4 O 3 O 2 O 1 O 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 0 0 1 1 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 5 Nguyen Thanh Hai, PhD 7.1 Decoders Disabled – all HIGH0xx Disabled – all HIGHx1x Disabled – all HIGHxx1 Respond to input code 100 Output 1 E 2 E 3 E 1 A 2 A 0 A 74ALS138 1 E 7 O E Decoder 8-0f-1 6 O 5 O 4 O 3 O 2 O 1 O 0 O 2 E 3 E 1 A 2 A 0 A MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 6 Nguyen Thanh Hai, PhD Example 7.1: 74ALS138 1 E 7 O E Decoder 8-0f-1 6 O 5 O 4 O 3 O 2 O 1 O 0 O 2 E 3 E 1 A 2 A 0 A MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 7 Nguyen Thanh Hai, PhD Example 7.2: MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 8 Nguyen Thanh Hai, PhD MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 9 Nguyen Thanh Hai, PhD MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 10 Nguyen Thanh Hai, PhD Example 7.3: MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 11 Nguyen Thanh Hai, PhD MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 12 Nguyen Thanh Hai, PhD 7.2 BCD-To-Segment Decoder/Drivers LED A MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 13 LED A LED 7 – Segment (Anode) 1111111 0 g 0 f 0 e 0 d 0 c 0 b 0 a Inputs Display LEDs ON OFF 7.2 BCD-To-Segment Decoder/Drivers Nguyen Thanh Hai, PhD MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 14 74LS47 6 2 1 7 4 5 3 13 12 11 10 9 15 14 D C B A BI/RBO RBI LT a b c d e f g LED A LED 7 – Segment Decoder Nguyen Thanh Hai, PhD 7.2 BCD-To-Segment Decoder/Drivers MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 15 Input Output Control Inputs Data Inputs LT RBI RBO D C B A a b c d e f g 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 1 1 0 0 1 1 1 1 1 1 1 0 0 1 0 0 0 1 0 1 1 0 1 1 1 0 0 1 1 0 0 0 0 1 1 0 1 1 1 0 1 0 0 1 0 0 1 1 0 0 1 1 1 0 1 0 1 0 1 0 0 1 0 0 1 1 1 0 1 1 0 1 1 0 0 0 0 0 1 1 1 0 1 1 1 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 1 0 0 0 1 1 0 0 0 1 1 X X X X 0 0 0 0 0 0 0 X 0 1 X X X X 1 1 1 1 1 1 1 X X 0 X X X X 1 1 1 1 1 1 1 Nguyen Thanh Hai, PhD MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 16 74LS47 6 2 1 7 4 5 3 13 12 11 10 9 15 14 D C B A BI/RBO RBI LT a b c d e f g LED A Input Output Control Inputs Data Inputs LT RB I RB O D C B A a b c d e f g 1 1 1 0 0 0 0 0 0 0 0 0 0 1 LED 7 – Segment Decoder Nguyen Thanh Hai, PhD 7.2 BCD-To-Segment Decoder/Drivers MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 17 Input Output Control Inputs Data Inputs LT RB I RB O D C B A a b c d e f g 1 1 1 0 0 0 1 1 0 0 1 1 1 1 LED 7 – Segment Decoder 6 2 1 7 4 5 3 13 12 11 10 9 15 14 D C B A BI/RBO RBI LT a b c d e f g LED A 74LS47 Nguyen Thanh Hai, PhD 7.2 BCD-To-Segment Decoder/Drivers MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 18 Input Output Control Inputs Data Inputs LT RB I RB O D C B A a b c d e f g 1 1 1 0 0 1 0 0 0 1 0 0 1 0 MSI Logic Circuits LED 7 – Segment Decoder 6 2 1 7 4 5 3 13 12 11 10 9 15 14 D C B A BI/RBO RBI LT a b c d e f g LED A 74LS47 Nguyen Thanh Hai, PhD 7.2 BCD-To-Segment Decoder/Drivers MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 19 Input Output Control Inputs Data Inputs LT RB I RB O D C B A a b c d e f g 1 1 1 0 0 1 1 0 0 0 0 1 1 0 LED 7 – Segment Decoder 6 2 1 7 4 5 3 13 12 11 10 9 15 14 D C B A BI/RBO RBI LT a b c d e f g LED A 74LS47 Nguyen Thanh Hai, PhD 7.2 BCD-To-Segment Decoder/Drivers MSI Logic Circuits University of Technical Education Faculty of Electrical & Electronic Engineering 20 Input Output Control Inputs Data Inputs LT RB I RB O D C B A a b c d e f g 1 1 1 0 1 0 0 1 0 0 1 1 0 0 LED 7 – Segment Decoder 6 2 1 7 4 5 3 13 12 11 10 9 15 14 D C B A BI/RBO RBI LT a b c d e f g LED A 74LS47 Nguyen Thanh Hai, PhD 7.2 BCD-To-Segment Decoder/Drivers [...]... Engineering MSI Logic Circuits 7.2 BCD-To-Segment Decoder/Drivers LED 7 – Segment Decoder 35 Nguyen Thanh Hai, PhD University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits 7.2 BCD-To-Segment Decoder/Drivers Example 7.4 36 Nguyen Thanh Hai, PhD University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits 7.3 Encoders M... Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits 7.3 Encoders 40 Nguyen Thanh Hai, PhD University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits Example 7.5 41 Nguyen Thanh Hai, PhD University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits 7.4 Multiplexers (Data Selectors) MUX I0 I1 Z Output I... Electrical & Electronic Engineering MSI Logic Circuits 7.4 Multiplexers (Data Selectors) 74HC151 49 Nguyen Thanh Hai, PhD University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits Example 7.6 Datasheet 50 Nguyen Thanh Hai, PhD University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits 7.5 Demultiplexers (Data Distributions)... Electronic Engineering MSI Logic Circuits Example 7.7: According to the above figure 60 Nguyen Thanh Hai, PhD University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits Example 7.7: According to the above figure 61 Nguyen Thanh Hai, PhD University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits -Take a look Examples from... Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits 7.2 BCD-To-Segment Decoder/Drivers LED 7 – Segment Decoder 6 1 13 7 D a C b B c A 2 d e f 3 5 4 LT 12 11 10 9 15 14 g RBI BI/RBO LED A 74LS47 29 Nguyen Thanh Hai, PhD University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits 7.2 BCD-To-Segment Decoder/Drivers LED 7 – Segment Decoder... Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits 7.2 BCD-To-Segment Decoder/Drivers LED 7 – Segment Decoder 6 1 13 7 D a C b B c A 2 d 12 11 10 9 e 5 4 15 f 3 LT 14 g RBI BI/RBO LED A 74LS47 31 Nguyen Thanh Hai, PhD University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits 7.2 BCD-To-Segment Decoder/Drivers LED 7 – Segment Decoder... Engineering MSI Logic Circuits 7.2 BCD-To-Segment Decoder/Drivers LED 7 – Segment Decoder 6 1 13 7 D a C b B c A 2 d 12 11 10 9 e 5 4 15 f 3 LT 14 g RBI BI/RBO LED A 74LS47 Input Control Inputs Output Data Inputs LT RB I RB O D C B A a b c d e f g X 0 1 X X X X 1 1 1 1 1 1 1 33 Nguyen Thanh Hai, PhD University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits 7.2 BCD-To-Segment... Engineering MSI Logic Circuits 7.2 BCD-To-Segment Decoder/Drivers LED 7 – Segment Decoder 6 1 13 7 D a C b B c A 2 d 12 11 10 9 e 5 4 15 f 3 LT 14 g RBI BI/RBO LED A 74LS47 Input Control Inputs Output Data Inputs LT RB I RB O D C B A a b c d e f g 1 1 1 0 1 0 1 0 1 0 0 1 0 0 21 Nguyen Thanh Hai, PhD University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits 7.2 BCD-To-Segment... Engineering MSI Logic Circuits 7.3 Encoders only one HIGH at a time A0 A1 A2 A3 A4 A5 A6 A7 O O O 2 x x x x x x x x Nguyen Thanh Hai, PhD 1 0 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 1 0 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 38 University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits 7.3 Encoders... Engineering MSI Logic Circuits 7.2 BCD-To-Segment Decoder/Drivers LED 7 – Segment Decoder 6 1 13 7 D a C b B c A 2 d 12 11 10 9 e 5 4 15 f 3 LT 14 g RBI BI/RBO LED A 74LS47 Input Control Inputs Output Data Inputs LT RB I RB O D C B A a b c d e f g 1 1 1 0 1 1 1 0 0 0 1 1 1 1 23 Nguyen Thanh Hai, PhD University of Technical Education Faculty of Electrical & Electronic Engineering MSI Logic Circuits 7.2 BCD-To-Segment . Hai, PhD 7. 1 Decoders 7. 2 BCD-To -7- Segment Decoder/Drivers 7. 3 Encoders 7. 4 Multiplexers (Data Selectors) 7. 5 Demultiplexers (Data Distributions) 7. 6 Magnitude Comparator MSI Logic Circuits (Medium-Scale-Integration) MSI. 0 1 0 MSI Logic Circuits LED 7 – Segment Decoder 6 2 1 7 4 5 3 13 12 11 10 9 15 14 D C B A BI/RBO RBI LT a b c d e f g LED A 74 LS 47 Nguyen Thanh Hai, PhD 7. 2 BCD-To-Segment Decoder/Drivers MSI. Engineering 27 LED 7 – Segment Decoder 6 2 1 7 4 5 3 13 12 11 10 9 15 14 D C B A BI/RBO RBI LT a b c d e f g LED A 74 LS 47 Nguyen Thanh Hai, PhD 7. 2 BCD-To-Segment Decoder/Drivers MSI Logic Circuits University