PLTW Digital Electronics End of Course Assessment

Transistors

Small electrical devices that could receive and amplify radio signals

Gates

Result of arrangement of transistors and resistors described by binary number systems and boolean algebra

Integrated circuit (IC)

An electronic circuit having many components, such as transistors, diodes, resistors, and capacitors, in a single package.

Truth table

A table used as a convenient method for organizing the truth values of statements

Categorizations of ICs

Underlying technology, scale of integration, and package style

Underlying technology

Transistor-Transistor Logic (TTL)

Complementary Metal Oxide Semiconductor (CMOS)

Scale of integration

Small scale integration (SSI) - <10 gates

Medium scale integration (MSI) - 10-100 gates

Large scale integration (LSI) - 100-10,000 gates

Very large scale integration (VLSI) - 10,000-100,000

Package style

Through Hole Technology (THT)

- Dual Inline Packages (DIP)

{bug lookin ones, straight pins}

Surface Mount Technolgy (SMT)

- Small Outline IC (SOIC)

{straight pins and bend}

- Plastic Leaded Chip Carrier (PLCC)

{no pins sticking out, laid on}

- Quad Flat Pack (QFP)

{four sides of pins with bends}

TTL Logic Subfamilies

Standard TTL - no infix, 7404

Low Power TTL - L, 74L04

Schottky - S, 74S04

Low Power Schottky - LS, 74LS04

Advanced Power Schottky - AS, 74AS04

Advanced Low Power Schottky - ALS, 74ALS04

TTL Logic Gate Numbering System

DM 74 LS 08 N

1. Manufacturer (DM = Fairchild Semiconductor)

2. TTL series (74)

3. Logic subfamily (LS - Low Power Schottky)

4. Logic function (04 - inverter, 08 - AND)

5. Package style (N = DIP)

Manufacturing Datasheets

Must include: general description, connection diagram, function table, operating conditions, electrical characteristics, switching characteristics, and physical dimensions

AOI vs NAND

AOI uses 74LS04, 74LS08, and 74LS32 while NAND only uses 74LS00