Published by Gbaf News
Posted on June 9, 2018
11 min readLast updated: January 21, 2026
Microsemi Corporation, a wholly owned subsidiary of Microchip Technology Inc. (Nasdaq: MCHP), today announced the launch of its SA.45s Commercial Space Chip Scale Atomic Clock (CSAC), the industry’s first commercially available radiation-tolerant CSAC.
Ideally suited for low Earth orbit (LEO) applications, the device provides the accuracy and stability of atomic clock technology while achieving significant breakthroughs in reduced size, weight and power (SWaP) consumption.
As the newest member of Microsemi’s CSAC product family, the Commercial Space CSAC provides excellent drift performance and built-in 1 pulse per second (PPS) input for GPS disciplining, making the device well-suited for holdover applications. It is targeted at several other commercial space and space research applications, including:
With many spacecraft manufacturers turning to commercial off-the-shelf (COTS) parts to meet performance, schedule and cost requirements, the Commercial Space CSAC offers a solution for many satellite missions.
“With the introduction of the Commercial Space CSAC, we now offer a space-deployable atomic precision clock reference with radiation tolerance in support of the space market’s desire to reduce mission costs and design times using COTS devices,” said Peter Cash, director of the clock business unit at Microsemi. “As the first atomic reference clock with low SWaP available for space, our new device is well-suited to applications requiring precise clock synchronization, including a variety of existing and emerging LEO applications.”
According to a market intelligence report by Euroconsult titled, “Satellites to be Built & Launched by 2026 World Market Survey,” the total revenue for satellite manufacture and launch is expected to be $304 billion between 2017-2026. With revenues of $102 billion, LEO is expected to account for a third of the total market, with 82 percent derived from satellite manufacturing.
“Harris provides the world’s most advanced sensors, payloads and communications technologies; receiving and information processing systems; and analytics which provide our customers with the integrated information and actionable intelligence they need for mission and business success,” said Tim Lynch, general manager, Mission Solutions at Harris Corporation’s Space and Intelligence Systems segment (NYSE: HRS). “Microsemi’s latest atomic clock will support Harris in delivering complete mission solutions to our customers.”
As a stand-alone atomic clock with a 10 megahertz (MHz) CMOS-compatible output, Microsemi’s Commercial Space CSAC is a timing module providing an impressive short-term stability (Allan Deviation) and frequency stability across the operating temperature (TempCo). A standard CMOS-level RS-232 serial interface is built into the device, which is used to control and calibrate the unit and provide a comprehensive set of status monitors. The interface is also used to set and read the CSAC’s precise internal time-of-day clock. Microsemi’s radiation-tolerant ruggedized oscillators also include OCXOs and state-of-the art EMXOs for applications that require higher accuracy and can support higher power consumption. Learn more at https://www.microsemi.com/product-directory/radiation-tolerant-devices/3801-rad-tolerant-ruggedized-oscillators.
Other key features include:
Power consumption of less than 120 milliwatts (mW)
Less than 17 cubic centimeters volume (1.6″ × 1.39″ × 0.45″)
Radiation-tolerant: 20 krad
Single event latch-up (SEL) and single event upset (SEU) tested to 64 megaelectron-volts per square centimeter/milligram (Mev-cm2/mg)
Short-term stability (Allan Deviation) of 3.0 × 10–10 at TAU = 1 sec
Frequency stability across temperature range (TempCo) less than 5×10-10
1PPS output and 1PPS input for synchronization and time-keeping
RS-232 interface for monitoring and control
Product Availability
Microsemi’s radiation-tolerant SA.45s Commercial Space CSAC is available for purchase orders now. For more information, visit https://www.microsemi.com/product-directory/embedded-clocks-frequency-references/5207-space-csac or contact sales.support@microsemi.com.
Microsemi Leading Space Innovation for More than Half a Century
With one of the industry’s most comprehensive portfolios of space products, Microsemi provides radiation-tolerant field programmable gate arrays (FPGAs), radiation-hardened mixed-signal integrated circuits (ICs), radiation-hardened DC-to-DC converters, precision time and frequency solutions, linear and POL hybrids, custom hybrid solutions, and radiation-hardened discretes including the broadest portfolio of JANS Class diodes and bipolar products. Microsemi is committed to supporting its products throughout the lifetime of its customer programs.
The company continues to innovate and expand its portfolio, most recently adding its new LX7730 radiation-tolerant telemetry controller IC providing key functions for sensor monitoring, attitude and payload control, as well as its RTG4™ high-speed signal processing radiation-tolerant FPGA family. The RTG4’s reprogrammable flash technology offers complete immunity to radiation-induced configuration upsets in the harshest radiation environments, requiring no configuration scrubbing, unlike SRAM FPGA technology. For more information about Microsemi’s space products, visit http://www.microsemi.com/applications/space.
“Safe Harbor” Statement under the Private Securities Litigation Reform Act of 1995: Any statements set forth in this news release that are not entirely historical and factual in nature, including without limitation statements related to the launch of its SA.45s Commercial Space CSAC, the company’s first commercially available radiation-tolerant CSAC, and its potential effects on future business, are forward-looking statements. These forward-looking statements are based on our current expectations and are inherently subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements.
The potential risks and uncertainties include, but are not limited to, such factors as rapidly changing technology and product obsolescence, potential cost increases, variations in customer order preferences, weakness or competitive pricing environment of the marketplace, uncertain demand for and acceptance of the company’s products, adverse circumstances in any of our end markets, results of in-process or planned development or marketing and promotional campaigns, difficulties foreseeing future demand, potential non-realization of expected orders or non-realization of backlog, product returns, product liability, and other potential unexpected business and economic conditions or adverse changes in current or expected industry conditions, difficulties and costs in implementing the company’s acquisitions and divestitures strategy or integrating acquired companies, uncertainty as to the future profitability of acquired businesses and realization of accretion from acquisition transactions, difficulties and costs of protecting patents and other proprietary rights, inventory obsolescence and difficulties regarding customer qualification of products. In addition to these factors and any other factors mentioned elsewhere in this news release, the reader should refer as well to the factors, uncertainties or risks identified in the company’s most recent Form 10-K and all subsequent Form 10-Q reports filed by Microsemi with the SEC.
Additional risk factors may be identified from time to time in Microsemi’s future filings. The forward-looking statements included in this release speak only as of the date hereof, and Microsemi does not undertake any obligation to update these forward-looking statements to reflect subsequent events or circumstances.
Microsemi Corporation, a wholly owned subsidiary of Microchip Technology Inc. (Nasdaq: MCHP), today announced the launch of its SA.45s Commercial Space Chip Scale Atomic Clock (CSAC), the industry’s first commercially available radiation-tolerant CSAC.
Ideally suited for low Earth orbit (LEO) applications, the device provides the accuracy and stability of atomic clock technology while achieving significant breakthroughs in reduced size, weight and power (SWaP) consumption.
As the newest member of Microsemi’s CSAC product family, the Commercial Space CSAC provides excellent drift performance and built-in 1 pulse per second (PPS) input for GPS disciplining, making the device well-suited for holdover applications. It is targeted at several other commercial space and space research applications, including:
With many spacecraft manufacturers turning to commercial off-the-shelf (COTS) parts to meet performance, schedule and cost requirements, the Commercial Space CSAC offers a solution for many satellite missions.
“With the introduction of the Commercial Space CSAC, we now offer a space-deployable atomic precision clock reference with radiation tolerance in support of the space market’s desire to reduce mission costs and design times using COTS devices,” said Peter Cash, director of the clock business unit at Microsemi. “As the first atomic reference clock with low SWaP available for space, our new device is well-suited to applications requiring precise clock synchronization, including a variety of existing and emerging LEO applications.”
According to a market intelligence report by Euroconsult titled, “Satellites to be Built & Launched by 2026 World Market Survey,” the total revenue for satellite manufacture and launch is expected to be $304 billion between 2017-2026. With revenues of $102 billion, LEO is expected to account for a third of the total market, with 82 percent derived from satellite manufacturing.
“Harris provides the world’s most advanced sensors, payloads and communications technologies; receiving and information processing systems; and analytics which provide our customers with the integrated information and actionable intelligence they need for mission and business success,” said Tim Lynch, general manager, Mission Solutions at Harris Corporation’s Space and Intelligence Systems segment (NYSE: HRS). “Microsemi’s latest atomic clock will support Harris in delivering complete mission solutions to our customers.”
As a stand-alone atomic clock with a 10 megahertz (MHz) CMOS-compatible output, Microsemi’s Commercial Space CSAC is a timing module providing an impressive short-term stability (Allan Deviation) and frequency stability across the operating temperature (TempCo). A standard CMOS-level RS-232 serial interface is built into the device, which is used to control and calibrate the unit and provide a comprehensive set of status monitors. The interface is also used to set and read the CSAC’s precise internal time-of-day clock. Microsemi’s radiation-tolerant ruggedized oscillators also include OCXOs and state-of-the art EMXOs for applications that require higher accuracy and can support higher power consumption. Learn more at https://www.microsemi.com/product-directory/radiation-tolerant-devices/3801-rad-tolerant-ruggedized-oscillators.
Other key features include:
Power consumption of less than 120 milliwatts (mW)
Less than 17 cubic centimeters volume (1.6″ × 1.39″ × 0.45″)
Radiation-tolerant: 20 krad
Single event latch-up (SEL) and single event upset (SEU) tested to 64 megaelectron-volts per square centimeter/milligram (Mev-cm2/mg)
Short-term stability (Allan Deviation) of 3.0 × 10–10 at TAU = 1 sec
Frequency stability across temperature range (TempCo) less than 5×10-10
1PPS output and 1PPS input for synchronization and time-keeping
RS-232 interface for monitoring and control
Product Availability
Microsemi’s radiation-tolerant SA.45s Commercial Space CSAC is available for purchase orders now. For more information, visit https://www.microsemi.com/product-directory/embedded-clocks-frequency-references/5207-space-csac or contact sales.support@microsemi.com.
Microsemi Leading Space Innovation for More than Half a Century
With one of the industry’s most comprehensive portfolios of space products, Microsemi provides radiation-tolerant field programmable gate arrays (FPGAs), radiation-hardened mixed-signal integrated circuits (ICs), radiation-hardened DC-to-DC converters, precision time and frequency solutions, linear and POL hybrids, custom hybrid solutions, and radiation-hardened discretes including the broadest portfolio of JANS Class diodes and bipolar products. Microsemi is committed to supporting its products throughout the lifetime of its customer programs.
The company continues to innovate and expand its portfolio, most recently adding its new LX7730 radiation-tolerant telemetry controller IC providing key functions for sensor monitoring, attitude and payload control, as well as its RTG4™ high-speed signal processing radiation-tolerant FPGA family. The RTG4’s reprogrammable flash technology offers complete immunity to radiation-induced configuration upsets in the harshest radiation environments, requiring no configuration scrubbing, unlike SRAM FPGA technology. For more information about Microsemi’s space products, visit http://www.microsemi.com/applications/space.
“Safe Harbor” Statement under the Private Securities Litigation Reform Act of 1995: Any statements set forth in this news release that are not entirely historical and factual in nature, including without limitation statements related to the launch of its SA.45s Commercial Space CSAC, the company’s first commercially available radiation-tolerant CSAC, and its potential effects on future business, are forward-looking statements. These forward-looking statements are based on our current expectations and are inherently subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements.
The potential risks and uncertainties include, but are not limited to, such factors as rapidly changing technology and product obsolescence, potential cost increases, variations in customer order preferences, weakness or competitive pricing environment of the marketplace, uncertain demand for and acceptance of the company’s products, adverse circumstances in any of our end markets, results of in-process or planned development or marketing and promotional campaigns, difficulties foreseeing future demand, potential non-realization of expected orders or non-realization of backlog, product returns, product liability, and other potential unexpected business and economic conditions or adverse changes in current or expected industry conditions, difficulties and costs in implementing the company’s acquisitions and divestitures strategy or integrating acquired companies, uncertainty as to the future profitability of acquired businesses and realization of accretion from acquisition transactions, difficulties and costs of protecting patents and other proprietary rights, inventory obsolescence and difficulties regarding customer qualification of products. In addition to these factors and any other factors mentioned elsewhere in this news release, the reader should refer as well to the factors, uncertainties or risks identified in the company’s most recent Form 10-K and all subsequent Form 10-Q reports filed by Microsemi with the SEC.
Additional risk factors may be identified from time to time in Microsemi’s future filings. The forward-looking statements included in this release speak only as of the date hereof, and Microsemi does not undertake any obligation to update these forward-looking statements to reflect subsequent events or circumstances.
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