Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing...

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Introductory Medical Device Prototyping Digital Circuits Part 1 – Logic Gates Prof. Steven S. Saliterman, http://saliterman.umn.edu/ Department of Biomedical Engineering, University of Minnesota

Transcript of Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing...

Page 1: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Introductory Medical Device Prototyping

Digital Circuits Part 1 – Logic Gates Prof. Steven S. Saliterman, http://saliterman.umn.edu/ Department of Biomedical Engineering, University of Minnesota

Page 2: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

Topics

CMOS logic. Designing with NI Multisim (SPICE) and

Ultiboard software. Boolean logic. CMOS packaging and pinouts. Digital Gates: 74HC00, 74HC74, 4049

74HC126. “Bus” for addressing and data transfer.

Page 3: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

Microelectronics Revolution

Triode tube 1915 (Langmuir)

Point-contact transistor 1947, Bell Labs (Brattain and Bardeen).

Junction transistor 1948 (Shockley), IC 1958 (Kibly and Noyce),

& Intel Pentium Microprocessor 108 Transistors!

Page 4: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

From Molten Silicon to IC Chips…

Single crystal silicon boule

Molten silicon - Czochralski puller technique

Silicon wafer diced into integrated circuits (DIP and SMD).

Page 5: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

CMOS Logic Complementary Metal Oxide Semiconductor Logic (4000B and 74HC00

series) Wide range of power supply voltages, from 3 to 15 Vdc Logic changes half-way up the power supply voltage, giving good noise

immunity. Almost no power supply current needed except during input logic

changes. Inputs are open circuits and easy to drive. The unloaded output logic swings the full range of the power supply. CMOS circuits create little noise of their own. CMOS circuits pass along less noise. Low cost.

Page 6: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

Design with NI Multisim

Page 7: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

CMOS Packages & Pins

Lancaster, D. and Berlin, H.M. CMOS Cookbook. H.W. Sams, Indianapolis, IN (1988)

Page 8: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

Inverter – 74HC04

Input Output High Low Low High

Notice the output is inverse to the input.

Page 9: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

Available Logic Gates in the 74HC04…

Lancaster, D. and Berlin, H.M. CMOS Cookbook. H.W. Sams, Indianapolis, IN (1988)

Page 10: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

If either or both inputs are low the output will be high.

NAND – 74HC00

Input 1 Input 2 Output

0 0 1 1 0 1 0 1 1 1 1 0

Page 11: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

Available Logic Gates in the 74HC00…

Lancaster, D. and Berlin, H.M. CMOS Cookbook. H.W. Sams, Indianapolis, IN (1988)

In addition to this NAND gate, there are many different types and combinations of Boolean logic gates to select from. These include AND, OR, NOR, Exclusive OR & NOR and others.

Page 12: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

Flip-Flop – 74HC74

In this configuration, with each clock pulse, the output Q alternates between 1 and 0, effectively halving the clock frequency. (Ǭ is simply the complement – or opposite, of Q.)

𝑄𝑄

𝑄𝑄

Notice the divide by 2 of frequency.

Clock Output

Page 13: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

4 Bit Binary Counter with Buffer Drivers …

20=1 21=2 22=4 23=8 “Place”

Page 14: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

Available Logic Gates in the 74HC74…

Lancaster, D. and Berlin, H.M. CMOS Cookbook. H.W. Sams, Indianapolis, IN (1988)

In addition to this D-Flip-Flop, there are also JK Flip-Flops

Page 15: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

Counter on Breadboard…

Page 16: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

Tri-State Logic – 74HC126

Page 17: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

Available Logic Gates in the 74HC126…

Lancaster, D. and Berlin, H.M. CMOS Cookbook. H.W. Sams, Indianapolis, IN (1988)

Page 18: Introductory Medical Device Prototyping...Prof. Steven S. Saliterman Topics CMOS logic. Designing with NI Multisim (SPICE) and Ultiboard software. Boolean logic. CMOS packaging and

Prof. Steven S. Saliterman

Summary

CMOS logic. Designing with NI Multisim (SPICE) and

Ultiboard software. Boolean logic. CMOS packaging and pinouts. Digital Gates: 74HC00, 74HC74, 4049

74HC126. “Bus” for addressing and data transfer.


High Speed Cmos Logic

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