LSI Computer Systems, Inc. (LSI/CSI)

Find the right IC for your next design

The first fabless Semiconductor Company offering Custom ASICs & Standard ICs in a variety of industries

Custom ASICs Revolutionary LED Drivers Cutting Edge Motor Controllers Differential Line Drivers Programmable Timers PIR Motion Detection Interface Circuits Programmable Digital Locks Frequency Dividers

Full Custom & Standard Integrated Circuits

As a fabless semiconductor company, we are in charge of design, development, and testing for our products

Standard ICs

Our wide selection of standard products are trusted in several high volume and niche industries and come with the same high level of technical support provided for our Full Custom ICs.

Custom ASICs

LSI/CSI offers turnkey development of mixed signal, full custom ICs. An LSI/CSI full custom design results in the highest performance custom chip at the lowest possible price for a high volume application.

New Products

Check out our newest circuits

LS7190; LS7191; LS7192

Digital Potentiometers (14 Pins)

3-terminal digital potentiometer with two fixed terminals and a variable wiper terminal with 64 tap positions

The wiper tap position can be varied with any of the following available input signals: up/down clock or A/B quadrature clock or direct data transfer over SPI bus.

LS7193; LS7194

Digital Potentiometers (8 Pins)

3-terminal digital potentiometer with two fixed terminals and a variable wiper terminal with 64 tap positions

The wiper tap position can be varied with one of the following input signals: up/down clock or A/B quadrature clock.

LS7195

Digital Potentiometers (8 Pins)

3-terminal digital potentiometer with two fixed terminals and a variable wiper terminal with 64 tap positions

Available in 20K, 50K and 100K resistor versions. Non-debounced up(A) and down(B) inputs are provided for rapid wiper sweep.

Our Brand New LS7190

Featured Product

Digital Potentiometer /Rheostat with Incremental Encoder and SPI Interface

GENERAL DESCRIPTION:
LS7190, LS7191, 7192, LS7193, LS7194 and LS7195 are versions of a three terminal digital potentiometer. Quadrature clocks from an incremental encoder or non-quadrature up and down clocks are applied to the A and B inputs.

X010-10P0L-30
Development Board

Get the solutions you need with the quality you expect.

LS9100X Direct-AC LED Driver IC

The X010-10P0L-30 is a complete and thoroughly integrated evaluation board that features the LS9100X direct-AC LED driver.

The Archimedes Series is designed to be driven directly off the 120VAC line voltage, eliminating the standard power supply and extending the long-term life of the product. The high-power factor can provide enhanced energy savings to the end application.

The smaller form factor provides significant flexibility in creative fixture design and reduces development time. This all-inclusive solution provides impressive performance for distributed light source applications in conjunction with the quality of light.

This board will simplify your evaluation process and development time by providing you with a premium design ready for testing.

Cutting Edge Industrial Solutions

Our broad portfolio of technologies and products will make your next design a success

LED Drivers

Our brand new line of ICs for industrial lighting solutions

LED Drivers

Our brand new line of ICs for industrial lighting solutions
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Timers

Time delay relays for HVAC and Industrial Controls, POR Hold-Off, One-Shot and Repeating Timed Operations

Timers

Time delay relays for HVAC and Industrial Controls, POR Hold-Off, One-Shot and Repeating Timed Operations
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Encoder Interface

Motion control, X/Y Tables, Robotics, Measurement Systems

Encoder Interface

Motion control, X/Y Tables, Robotics, Measurement Systems
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Lighting Controls

Dimmers and Timers for Wall Switch Applications, Step and Continuous Dimmers for touch lamps, Dimming Low-Voltage Halogen Lamps

Lighting Controls

Dimmers and Timers for Wall Switch Applications, Step and Continuous Dimmers for touch lamps, Dimming Low-Voltage Halogen Lamps
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Counters

Industrial, Scientific, and Frequency counting. Quadrature, Non-Quadrature, Normal/Modulo-N, 24 Hour Clock, Non-Recycle, Binary, BCDs

Counters

Industrial, Scientific, and Frequency counting. Quadrature, Non-Quadrature, Normal/Modulo-N, 24 Hour Clock, Non-Recycle, Binary, BCDs
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PIR Detection

Occupancy Sensing for Energy Saving and Security, Remote Camera Operation, Outdoor Security Lighting

PIR Detection

Occupancy Sensing for Energy Saving and Security, Remote Camera Operation, Outdoor Security Lighting
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LS7366R 32-bit CMOS Counter with SPI

The LS7366R is a 32-bit CMOS counter, with direct interface for quadrature clocks from incremental encoders.

LS7560F / LS7561F Brushless DC Motor Controller

The LS7560F/LS7561F are designed to control three or four phase brushless DC motors in closed or open loop configuration.

50+ Years of Excellence

LSI/CSI is the world’s first fabless semiconductor company! The two founders, Alvin Kaplan and Attila Tetik, worked together at General Instrument Microelectronics and in 1969 they were assigned to develop three full custom CPU circuits for CDC in Minneapolis, MN.

ICs that make products better

LSI/CSI

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LSI/CSI

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