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The Info List - 4000 Series



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The 4000 SERIES is a family of integrated circuits (ICs) first introduced in 1968. Almost all IC manufacturers active during this initial era fabricated models for this series. It is still in use today.

CONTENTS

* 1 History * 2 Design considerations * 3 Common 4000 series
4000 series
chips * 4 See also * 5 References * 6 External links

HISTORY

The 4000 series
4000 series
was introduced as the CD4000 COS/MOS series in 1968 by RCA
RCA
as a lower power and more versatile alternative to the 7400 series of transistor-transistor logic (TTL) chips. The logic functions were implemented with the newly introduced Complementary Metal–Oxide–Semiconductor (CMOS) technology. While initially marketed with "COS/MOS" labeling by RCA
RCA
(which stood for Complementary Symmetry Metal-Oxide Semiconductor), the shorter CMOS
CMOS
terminology emerged as the industry preference to refer to the technology. The first chips in the series were designed by a group led by Albert Medwin .

Wide adoption was initially hindered by the comparatively slower speeds of the designs compared to TTL based designs. Speed limitations were eventually overcome with newer fabrication methods, leaving the older TTL chips to be phased out. The series was extended in the late 1970s and 1980s with new models that were given 45xx and 45xxx designations, but are usually still regarded by engineers as part of the 4000 series. In the 1990s, some manufacturers (e.g. Texas Instruments ) ported the 4000 series
4000 series
to newer H CMOS
CMOS
based designs to provide greater speeds.

DESIGN CONSIDERATIONS

The CD4007 on a breadboard

The 4000 series
4000 series
facilitates simpler circuit design through relatively low power consumption, a wide range of supply voltages , and vastly increased load-driving capability (fanout) . This makes the series ideal for use in prototyping LSI designs. While TTL based design is similarly modular , it requires meticulous planning of a circuit's electrical load characteristics. Buffered models can accommodate higher electrical currents, but have a greater risk of introducing unwanted feedback . Many models contain a high level of integration, including fully integrated 7-segment display counters , walking ring counters , and full adders .

COMMON 4000 SERIES CHIPS

Main article: List of 4000 series integrated circuits

* 4001 - Quad 2-input NOR gate * 4008 - 4-bit full adder * 4011 - Quad 2-input N AND gate * 4013 - Dual D Type Flip Flop * 4017 - Decade counter / walking ring counter * 4026 - 7-segment LED counter * 4049 - Hex inverting buffer * 4050 - Hex non-inverting buffer * 4051 - 8-channel analog multiplexer / demultiplexer * 4071 - Quad 2-input OR gate * 4081 - Quad 2-input AND gate

SEE ALSO

* List of 4000 series integrated circuits * 7400 series
7400 series
* List of 7400 series
7400 series
integrated circuits * Logic gate
Logic gate

REFERENCES

* ^ Wright, Maury. Milestones That Mattered: CMOS
CMOS
pioneer developed a precursor to the processor EDN, 6/22/2006 * ^ R. Jacob Baker (2010). CMOS: Circuit Design, Layout, and Simulation (3rd ed.). John Wiley & Sons. p. 7. ISBN 978-1-118-03823-9 . * ^ Understanding Buffered and Unbuffered CD4xxxB Series Device Characteristics. Texas Instruments * ^ Lancaster, Don. CMOS
CMOS
Cookbook, ISBN 0-672-21398-2

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