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The Beastie Zone contains detailed information about lots of useful integrated circuits.

Each entry gives you a pin connection diagram for the integrated circuit, or 'beastie', and shows you exactly how to wire it up to achieve basic operation.

In addition, there are circuits showing typical applications and links to other parts of the DOCTRONICS Beastie Zone database and to topics within Design Electronics, the on-line electronics textbook.




linear ICs

CMOS logic TTL logic WWW.gif (568 bytes)


components linear ICs CMOS logic TTL logic LINKS

  from DOCTRONICS: Everything you need to know!

If you can't find out what you need to know, Email send a message DOCTRONICS. We will do our best to help.

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INPUT SWITCHES Push button switches, keypads and debounced switches
INFRA-RED SENSORS Photodiode, phototransistor and passive infra-red (PIR) sensors
TEMPERATURE SENSOR Thermistor and integrated circuit sensors
MOISTURE SENSOR Is it raining?
FLOAT SENSOR Is the bath full?
MOVEMENT SENSOR Tilt switches, reed switches and pressure pads
SOUND SENSOR That's a microphone...
INPUT VOLTAGE Providing a reference level



NOT GATE Logic gate with applications and circuits
BUFFER Logic gate with applications and circuits
AND GATE Logic gate with applications and circuits
OR GATE Logic gate with applications and circuits
NAND GATE Logic gate with applications and circuits
NOR GATE Logic gate with applications and circuits
EXOR GATE Logic gate with applications and circuits
EXNOR GATE Logic gate with applications and circuits
DATA SELECTOR Solving logic problems
ASTABLE Produces pulses
BISTABLE Two stable states
MONOSTABLE Single pulse when triggered
TIME DELAY Wait a moment...
TRANSDUCER DRIVER Electronic switches and driver circuits
OPTO-ISOLATOR Separating subsystems for safety, or to prevent interference..
VOLTAGE COMPARATOR Which voltage is bigger?
VOLTAGE FOLLOWER Voltage out=voltage in.. Why?
AUDIO AMPLIFIER Let's hear it!
RAMP GENERATOR Up and down we go!
ADC Analogue to digital converter
DAC Digital to analogue converter
COUNTER Binary, BCD and decade counters
BCD TO 7-SEGMENT DECODER Converting from BCD to drive a 7-segment display



LED INDICATORS What's happening?
7-SEGMENT DISPLAY Show me the numbers..
MATRIX DISPLAY Making patterns.
LAMPS Let there be light!
MOTOR Where are you going?
SOLENOID Needing a push?
RELAY Switching a high voltage/high current circuit
FAN Keeping cool...

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Linear integrated circuits

This group includes the 555 timer, op-amps, audio amplifiers and other special purpose integrated circuits.


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CMOS logic

4000 series CMOS logic integrated circuits have the advantages of wide power supply range (3-15 V) and low power consumption, making them ideal for battery operation.

In all CMOS circuits, you need to provide power supply decoupling, connecting 47 F or 100 F capacitors across the power supply close to the power supply pins of the integrated circuits themselves.

All the inputs of a CMOS integrated circuit must be connected either to HIGH or LOW.

The table below lists CMOS integrated circuits in numerical order. A second table lists these devices by function.

CMOS devices: Numeric Index

Beastie rating:

: hot stuff !!

: useful

: worth remembering


4000 Dual 3-input NOR gate + inverter
4001 Quad 2-input NOR gate
4002 Dual 4-input NOR gate
4008 4-bit binary full adder
4011 Quad 2-input NAND gate
4012 Dual 4-input NAND gate
4013 Dual D-type flip-flop
4014 8-stage shift register
4015 Dual 4-stage shift register
4016 Quad bilateral switch
4017 Divide-by-10 counter (5-stage Johnson counter)
4018 Presettable divide-by-n counter
4019 Quad 2-input multiplexer (data selector)
4020 14-stage binary counter
4021 8-bit static shift register
4022 Divide-by-8 counter (4-stage Johnson counter)
4023 Triple 3-input NAND gate
4024 7-stage binary counter
4025 Triple 3-input NOR gate
4026 BCD counter with decoded 7-segment output
4027 Dual JK flip-flop
4028 BCD to decimal (1-of-10) decoder
4029 Binary/BCD up/down counter
4040 12-stage binary ripple counter
4042 Quad D-type latch
4043 Quad NOR R/S latch
4044 Quad NAND R/S latch
4046 Phase-locked loop
4047 Monostable/astable
4049 Hex inverter/buffer (NOT gate)
4050 Hex non-inverting buffer
4051 Analogue multiplexer/demultiplexer (1-of-8 switch)
4052 Analogue multiplexer/demultiplexer (Dual 1-of-4 switch)
4053 Analogue multiplexer/demultiplexer (Triple 1-of-2 switch)
4060 14-stage binary ripple counter and oscillator
4066 Quad bilateral switch
4067 16-channel analogue multiplexer/demultiplexer (1-of-16 switch)
4068 8-input NAND gate
4069 Hex inverter (NOT gate)
4070 Quad 2-input EXOR gate
4071 Quad 2-input OR gate
4072 Dual 4-input OR gate
4073 Triple 3-input AND gate
4075 Triple 3-input OR gate
4076 Quad D-type register with tristate outputs
4077 Quad 2-input EXLUSIVE-NOR gate
4078 8-input NOR gate
4081 Quad 2-input AND gate
4082 Dual 4-input AND gate
4082 4-wide 2-input AND-OR-invert gate
4093 Quad 2-input Schmitt trigger NAND gate
4503 Hex inverter (NOT gate) with tristate outputs
4508 Dual 4-bit latch with tristate outputs
4510 BCD up/down counter
4511 BCD to 7-segment latch/decoder/driver
4512 8-input multiplexer (data selector) with tristate output
4514 1-of-16 decoder/demultiplexer HIGH output
4515 1-of-16 decoder/demultiplexer LOW output
4516 4-bit binary up/down counter
4518 Dual BCD up counter
4519 Quad 2-input multiplexer (data selector)
4520 Dual 4-bit binary up counter
4521 24-stage frequency divider
4526 Programmable 4-bit binary down counter
4532 8-bit priority encoder
4538 Dual precision monostable
4543 BCD to 7-segment latch/decoder/driver
4555 Dual 1-of-4 decoder/demultiplexer HIGH output
4556 Dual 1-of-4 decoder/demultiplexer LOW output
4585 4-bit magnitude comparator
4724 8-bit addressable latch
40106 Hex inverting Schmitt trigger (NOT gate)

This list includes the most popular devices but is not exhaustive. Consult manufacturer's data books and/or internet sites for additional information.

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CMOS devices: Functional Index

NAND gates 4011 2-input, 4012 4-input, 4023 3-input, 4068 8-input, 4093 2-input Schmitt trigger
AND gates 4073 3-input, 4081 2-input, 4082 4-input
NOR gates 4000 3-input, 4001 2-input, 4002 4-input, 4025 3-input, 4078 8-input
OR gates 4071 2-input, 4072 4-input, 4075 3-input
Inverters (NOT gates)

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TTL logic




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Manufacturers data sheets:

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From these sources, you will be able to download data sheets for almost any integrated circuit.

Most data sheets are in Adobe Acrobat, pdficon.gif (272 bytes) format. You will need Acrobat Reader. You can install this from the cover CD of many computer magazines, or download it direct from Adobe:

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