Renesas Electronics#M16C microcontrollers

File:Renesas Silicon Valley Offices in the Edenvale district of San Jose, California 2012.jpg]]

Renesas Electronics was established in April 2010 through the merger of Renesas Technology and NEC Electronics.{{Cite news |title=NEC Electronics and Renesas agree on merger |url=https://www.ft.com/content/87c3cc6a-a2a5-11de-ae7e-00144feabdc0 |url-access=subscription |archive-url=https://ghostarchive.org/archive/20221210/https://www.ft.com/content/87c3cc6a-a2a5-11de-ae7e-00144feabdc0 |archive-date=2022-12-10 |access-date= |work=The Financial Times}} Renesas Technology had been formed in 2003 as a joint venture between Hitachi and Mitsubishi Electric, combining their non-DRAM semiconductor businesses.{{cite news |title=Hitachi, Mitsubishi sign to merge chip units in Renesas venture |url=https://www.eetimes.com/document.asp?doc_id=1179038 |work=EE Times}} NEC had earlier spun off its semiconductor division as NEC Electronics in 2002.{{cite news |date=25 July 2003 |title=NEC Spinoff Starts Well As Its Stock Increases 29% |url=https://www.nytimes.com/2003/07/25/business/nec-spinoff-starts-well-as-its-stock-increases-29.html |work=The New York Times |agency=Bloomberg News}}{{cite news |last=Hara |first=Yoshiko |title=NEC spins off semiconductor operations |url=https://www.eetimes.com/document.asp?doc_id=1145338 |work=EE Times}} The companies had previously separated their DRAM operations into Elpida Memory, which filed for bankruptcy in 2012 and was acquired by Micron Technology.{{Cite news |last=Sutherland |first=Ed |date=2012-07-02 |title=Micron acquires bankrupt Elpida Memory for $2.5 billion |url=https://www.reuters.com/article/idUS302690500420120702 |access-date=2021-01-18 |work=Reuters |language=en}}

In December 2010, Renesas Mobile Corporation was formed by integrating Renesas’s mobile business with assets acquired from Nokia.{{cite web |last1=Ricker |first1=Thomas |title=Nokia sells wireless modem business to Renesas in bid to refocus |date=6 July 2010 |url=https://www.engadget.com/2010/07/06/nokia-sells-wireless-modem-business-to-renesas-in-order-to-focus/ |publisher=Engadget |access-date=11 December 2015}} However, the company later exited the mobile sector, transferring LTE assets to Broadcom in 2013 and dissolving the subsidiary in 2014.{{Cite web |date=2013-09-04 |title=Broadcom to buy LTE assets from Renesas Electronics |url=https://www.reuters.com/article/idUSL4N0H0348/ |access-date=2024-08-14 |website=reuters.com}}{{cite news |date=2014-07-28 |title=Renesas Electronics Announces Absorption-Type Merger (Simplified/Short-Form Merger) with Consolidated Subsidiary and Debt Waiver |url=https://www.renesas.com/jp/en/about/press-center/news/2014/news20140728.html |access-date=2019-07-27 |publisher=Renesas Electronics}}

The 2011 Tōhoku earthquake and flooding in Thailand severely impacted Renesas’s operations.{{Cite web |title=Background Paper prepared for the Global Assessment Report on Disaster Risk Reduction 2013 |url=https://www.preventionweb.net/english/hyogo/gar/2013/en/bgdocs/Okazumi%20et.%20al.%202012.pdf |access-date=2024-08-15 |website=preventionweb.net}} A major restructuring followed, involving the sale of domestic factories and a capital infusion from the Innovation Network Corporation of Japan (INCJ), which became the company's largest shareholder in 2013.{{cite news |last=Saito |first=Mari |date=3 July 2012 |title=Japan's Renesas seeks to cut 12 percent of workforce |url=https://www.reuters.com/article/us-renesas-turnaround/japans-renesas-seeks-to-cut-12-percent-of-workforce-idUSBRE86209F20120703 |access-date=30 March 2018 |website=reuters.com}}{{Cite news |date=2012-07-03 |title=Renesas aims to complete restructuring in 3 years |url=https://www.reuters.com/article/renesas-turnaround-idUST9E8HE01I20120703 |access-date=2023-04-23 |work=Reuters |language=en}}{{Cite web |date=2012-12-10 |title=Japan's Renesas secures $1.8 billion government-led bailout |url=https://www.reuters.com/article/idUSBRE8B905N/ |access-date=2024-08-14 |website=reuters.com}}{{cite web |title=Renesas Electronics Announces Partial Correction and Update on "Renesas Electronics Announces Share Issue through Third-Party Allotment, and Change in Major Shareholders, Largest Shareholder who is a Major Shareholder, Parent Company and Other Related Companies" |url=https://www.renesas.com/en-hq/about/press-center/news/2013/news20130930c.html |access-date=2017-02-25 |newspaper=Renesas Electronics}} Renesas returned to profitability in fiscal year 2013.{{cite web |title=Financial Highlights |url=https://www.renesas.com/en-hq/about/ir/financial/highlight.html |access-date=2017-02-28}}

From 2016 onward, Renesas embarked on a series of acquisitions to strengthen its automotive and industrial semiconductor portfolio. It acquired Intersil in 2017{{Cite news |date=2017-02-25 |title=Renesas Electronics Completes Acquisition of Intersil |url=https://www.renesas.com/en-hq/about/press-center/news/2017/news20170225a.html |access-date=2017-02-25 |newspaper=Renesas Electronics}} and Integrated Device Technology (IDT) in 2019.{{cite web |date=2018-09-11 |title=Renesas in $6.7 billion deal for IDT |url=https://www.reuters.com/article/us-idt-m-a-renesas/renesas-in-67-billion-deal-for-idt-to-boost-chips-for-self-driving-cars-idUSKCN1LR031 |access-date=2018-09-11 |publisher=Reuters}}{{Cite web |date=2019-03-30 |title=Renesas Completes Acquisition of Integrated Device Technology |url=https://www.renesas.com/us/en/about/press-center/news/2019/news20190330.html |access-date=2019-04-03 |website=Renesas Electronics}} In 2021, it purchased Dialog Semiconductor for $5.9 billion,{{cite news |author=Tim Kelly, Douglas Busvine |date=2021-02-07 |title=Renesas in $6.0 billion deal for Dialog |url=https://www.reuters.com/article/us-dialog-m-a-renesas-idINKBN2A70JX |newspaper=Reuters}}{{Cite web |date=August 31, 2021 |title=Renesas Completes Acquisition of Dialog Semiconductor |url=https://www.renesas.com/us/en/about/press-room/renesas-completes-acquisition-dialog-semiconductor |website=renesas.com}} followed by additional acquisitions including Celeno Communications,{{Cite web |date=December 21, 2021 |title=Renesas Completes Acquisition of Celeno |url=https://www.renesas.com/jp/en/about/press-room/renesas-completes-acquisition-celeno |website=renesas.com}} Reality AI,{{Cite web |date=July 20, 2022 |title=Renesas Completes Acquisition of Reality AI |url=https://www.renesas.com/us/en/about/press-room/renesas-completes-acquisition-reality-ai |website=renesas.com}} and Steradian Semiconductors.{{Cite web |date=October 17, 2022 |title=Renesas Completes Acquisition of Steradian |url=https://www.renesas.com/us/en/about/press-room/renesas-completes-acquisition-steradian |website=renesas.com}}

In March 2021, a fire at the Naka Factory temporarily disrupted production, but operations resumed the following month.{{Cite news |last=Jie |first=Yang |date=2021-03-22 |title=Renesas Chip-Plant Fire Spreads Concerns About Global Auto Production |url=https://www.wsj.com/articles/renesas-chip-plant-fire-spreads-concerns-about-global-auto-production-11616414181 |access-date=2021-03-22 |work=Wall Street Journal |language=en-US |issn=0099-9660}}{{Cite web |date=April 19, 2021 |title=UPDATE 6 - Notice Regarding the Semiconductor Manufacturing Factory (Naka Factory) Fire |url=https://www.renesas.com/jp/en/about/press-room/update-6-notice-regarding-semiconductor-manufacturing-factory-naka-factory-fire |website=renesas.com}} The company also reopened its Kofu fabrication facility to support power semiconductor production, with operations expected to begin in 2024.

Renesas continued its expansion through 2023 and 2024 with the acquisitions of Panthronics,{{Cite web |title=Renesas Completes Acquisition of Panthronics |url=https://www.renesas.com/us/en/about/press-room/renesas-completes-acquisition-panthronics |access-date=2023-07-07}} gallium nitride chipmaker Transphorm,{{Cite news |last=Mukano |first=Ryo |date=2024-01-11 |title=Japan's Renesas to acquire U.S. power semiconductor maker |url=https://asia.nikkei.com/Business/Tech/Semiconductors/Japan-s-Renesas-to-acquire-U.S.-power-semiconductor-maker |work=Nikkei Asia}}{{Cite web |title=Renesas Completes Acquisition of Transphorm {{!}} Renesas |url=https://www.renesas.com/us/en/about/press-room/renesas-completes-acquisition-transphorm |access-date=2024-08-02 |website=www.renesas.com |language=en}} and PCB design software firm Altium.{{Cite news |last=Nussey |first=Sam |date=February 14, 2024 |title=Japan chipmaker Renesas to buy software firm Altium for $5.9 bln |url=https://www.reuters.com/technology/japanese-chipmaker-renesas-buy-australian-software-firm-altium-59-bln-2024-02-14/ |access-date=2024-02-15 |publisher=Reuters}}{{Cite web |title=Renesas Completes Acquisition of Altium {{!}} Renesas |url=https://www.renesas.com/us/en/about/press-room/renesas-completes-acquisition-altium |access-date=2024-08-02 |website=www.renesas.com |language=en}} It also signed a long-term silicon carbide wafer supply agreement with Wolfspeed and entered a strategic partnership with Vietnamese EV maker VinFast.{{Cite web |title=Renesas and Wolfspeed Sign 10 Year Silicon Carbide Wafer Supply Agreement |url=https://www.renesas.com/us/en/about/press-room/renesas-and-wolfspeed-sign-10-year-silicon-carbide-wafer-supply-agreement |access-date=2023-07-07}}{{cite web |author=Renesas |date=2022-09-26 |title=VinFast and Renesas Sign Strategic Partnership to Advance Automobile Technology |url=https://www.renesas.com/tw/en/about/press-room/vinfast-and-renesas-sign-strategic-partnership-advance-automobile-technology |access-date=2022-09-27 |publisher=Renesas |quote=the two companies are expanding their collaboration agreement to include automotive technology development of electric vehicles (EVs) and delivery of system components}}

In April 2023, Renesas was added to the Nikkei 225 index,{{Cite web |date=March 3, 2023 |title=Changes to the Nikkei Stock Average |url=https://indexes.nikkei.co.jp/nkave/archives/news/20230303E_1.pdf}} and in December 2022, it received the “Outstanding Asia-Pacific Semiconductor Company Award” from the Global Semiconductor Alliance.{{Cite web |date=December 12, 2022 |title=Renesas Wins 2022 "Outstanding Asia-Pacific Semiconductor Company Award" by Global Semiconductor Alliance |url=https://www.renesas.com/us/en/about/press-room/renesas-wins-2022-outstanding-asia-pacific-semiconductor-company-award-global-semiconductor-alliance |website=renesas.com}}

RL78 is the family name for a range of 16-bit microcontrollers. These were the first new MCU to emerge from the new Renesas Electronics company after the merger of NEC Electronics and Renesas Technology.

{{cite press release |language=en |publisher=Renesas Electronics |access-date=2024-06-06 |date=2010-11-17 |title=Renesas Electronics Introduces the New RL78 Microcontroller Family to Deliver Solutions for Next-Generation 8-/16-bit Embedded Applications |website=Business Wire |url=https://www.businesswire.com/news/home/20101117006818/en/Renesas-Electronics-Introduces-New-RL78-Microcontroller-Family |archive-url=https://web.archive.org/web/20180318120737/https://www.businesswire.com/news/home/20101117006818/en/Renesas-Electronics-Introduces-New-RL78-Microcontroller-Family |archive-date=2018-03-18 |url-status=dead}} These microcontrollers incorporate the core features of the NEC 78K0R (150 nm MF2 flash process) and many familiar peripherals from legacy Renesas R8C microcontrollers. The RL78 core variants include the S1, S2, and S3 type cores which evolved from the NEC 78K0R core. The basic S1 core support 74 instructions, the S2 core adds register banking and supports 75 instructions, while the S3 core adds an on-chip multiplier / divider / multiple-accumulate and supports 81 instructions.

The RL78 was developed to address extremely low power but highly integrated microcontroller applications,{{cite web|access-date=2024-06-06 |date=2010-11-28 |title=Renesas Electronics Introduces the New RL78 Microcontroller Family for Next-Generation 8-/16-bit Embedded Applications |publisher=eepower.com |url=https://eepower.com/new-industry-products/renesas-electronics-introduces-the-new-rl78-microcontroller-family-for-next-generation-8-16-bit-embedded-applications/}} to this end the core offered a novel low power mode of operation called “snooze mode”{{cite web|access-date=2024-06-06 |date=2022-07-06 |title=Renesas RL78 - 0. Family Lineup and Features |publisher=circuitbread.com |url=https://www.circuitbread.com/tutorials/renesas-rl78-0-family-lineup-and-features}} where the ADC or serial interface can be programmed to meet specific conditions to wake the device from the extreme low power STOP mode of 0.52uA.

The RX, an acronym for Renesas Xtreme, is the family name for a range of 32-bit microcontrollers developed by Renesas, as opposed to the H family and the MC family, launched by Hitachi and Mitsubishi respectively.{{Cite web|title=Commemorating on the Growth of Renesas 32-Bit RX Family on its 10th Anniversary {{!}} Renesas|url=https://www.idt.com/us/en/blogs/commemorating-growth-renesas-32-bit-rx-family-its-10th-anniversary|access-date=2021-01-17|website=www.idt.com|language=en}}{{Cite web|title=Renesas (Mitsubishi, Hitachi) Microcontroller Development Tools|url=https://microcontrollershop.com/default.php?cPath=99|access-date=2021-01-17|website=microcontrollershop.com}}

The RX family was launched in 2009 by Renesas Technology with the first product range designated the RX600 series{{cite web|access-date=2024-06-06 |date=2009-03-27 |title=Renesas RX610 microcontrollers for embedded systems |publisher=electronicsweekly.com |url=https://www.electronicsweekly.com/news/products/microprocessors/renesas-rx610-microcontrollers-for-embedded-systems-2009-03/}} and targeting applications such as metering, motor control, human–machine interfaces (HMI), networking, and industrial automation. Since 2009 this MCU family range has been enlarged with a smaller variant the RX200 series{{cite web|access-date=2024-06-06 |date=2011-03-13 |title=Renesas targets ultra low power with RX200 |publisher=eetimes.com |url=https://www.eetimes.com/renesas-targets-ultra-low-power-with-rx200/}} and also through enhanced performance versions.

The RA, an acronym for Renesas Advanced, is the family name for a range of 32-bit microcontrollers with Arm Cortex processor cores.{{cite web|access-date=2024-06-11 |date=2021-10-15 |title=Renesas' New RA2E2 32-bit MCUs Promises More Scalable IoT Designs |publisher=allaboutcircuits.com |url=https://www.allaboutcircuits.com/news/renesas-new-ra2e2-32-bit-microcontrollers-promises-more-scalable-internet-of-things-designs/}} The RA family's key features are the stronger embedded security, high-performance, and CoreMark ultra-low power operation. It also has a comprehensive partner ecosystem and Flexible Software Package{{Cite web|title=Flexible Software Package (FSP) {{!}} Renesas|url=https://www.renesas.com/us/en/software-tool/flexible-software-package-fsp|access-date=2021-01-28|website=www.renesas.com|language=en}} for the users.

The Renesas RZ family is a high-end 32 & 64 bit microprocessors{{cite web|access-date=2024-06-11 |date=2024-01-17 |title=Renesas Curtails IoT Standby Power With New 64-bit Microprocessors |publisher=allaboutcircuits.com |url=https://www.allaboutcircuits.com/news/renesas-curtails-iot-standby-power-new-64-bit-mpus/}} that is designed for the implementations of high resolution human machine interface (HMI), embedded vision, real-time control, and industrial Ethernet connectivity.{{Cite web|title=RZ Arm-based High-end 32 & 64-bit MPUs {{!}} Renesas|url=https://www.renesas.com/us/en/products/microcontrollers-microprocessors/rz-arm-based-high-end-32-64-bit-mpus|access-date=2021-01-28|website=www.renesas.com|language=en}} It supports 6 protocols: PROFINET RT/IRT, EtherNET/IP, POWERLINK, Modbus/TCP, EtherCAT, TSN, and Sercos III.

The family includes, RZ/A and RZ/G for HMI, RZ/T for high-speed real-time control, and RZ/N for the network.

The largest stockholders and their ownership ratio of Renesas are as follows as of June 30, 2022.{{cite web|url=https://www.renesas.com/us/en/about/ir/stock/distribution.html|title=Distributions of Shareholders and Shares|date=3 April 2019|publisher=Renesas Electronics Corporation}}{{Cite web |date=2018-03-09 |title=Renesas Electronics Announces Change in Controlling Shareholder Other Than Parent Company |url=https://www.businesswire.com/news/home/20180308006477/en/Renesas-Electronics-Announces-Change-in-Controlling-Shareholder-Other-Than-Parent-Company |access-date=2023-04-23 |website=www.businesswire.com |language=en}}{{Cite web |title=Japan's state-backed fund INCJ, others to trim stake worth $3b in Renesas |url=https://www.dealstreetasia.com/stories/japans-state-backed-fund-incj-others-to-trim-worth-3b-stake-in-renesas-95426 |access-date=2023-04-23 |website=DealStreetAsia |language=en}}

At the beginning of June 2022, Renesas announced its completion of an approx. 200 billion yen worth buyback of its shares.{{Cite web |date=June 1, 2022 |title=Renesas Announces Result of Tender Offer and Completion of Acquisition of Own Shares |url=https://www.renesas.com/jp/en/about/press-room/renesas-announces-result-tender-offer-and-completion-acquisition-own-shares |website=renesas.com}}

At the end of September 2013, Renesas issued new shares through third-party allotment resulting in INCJ becoming the new largest shareholder and non-parental controlling shareholder.{{cite web |url=http://www.renesas.com/press/news/2013a/news20130930c.jsp |title=Renesas Electronics Announces Partial Correction and Update on "Renesas Electronics Announces Share Issue through Third-Party Allotment, and Change in Major Shareholders, Largest Shareholder who is a Major Shareholder, Parent Company and Other Related Companies" |date=September 30, 2013 |publisher=Renesas Electronics Corporation |url-status=dead |archive-url=https://web.archive.org/web/20131203015725/http://www.renesas.com/press/news/2013a/news20130930c.jsp |archive-date=December 3, 2013 }}

In early May 2012, NEC transferred part of its stake in Renesas to its employee pension trust. As a result, the NEC pension fund held 32.4 percent of Renesas while NEC had 3.0 percent.{{cite web|url=https://www.reuters.com/article/renesas-idUSL3E8GL0XF20120522 |title=Japan's Renesas to cut 6,000 jobs, raise capital |date=May 22, 2012 |author=Mari Saito and Ayai Tomisawa |publisher=Reuters }}

In March 2008, Renesas Electronics signed the UN Global Compact.{{Cite web |title=Renesas Electronics Corporation |url=https://unglobalcompact.org/what-is-gc/participants/6856-Renesas-Electronics-Corporation |access-date=2024-08-20 |website=unglobalcompact.org}}{{Cite web |title=Renesas Becomes a Signatory of United Nations Global Compact {{!}} Renesas |url=https://www.renesas.com/us/en/about/press-room/renesas-becomes-signatory-united-nations-global-compact |access-date=2024-08-20 |website=www.renesas.com |language=en}}

In August 2024, the companies ESG risk rating was low at just 17.5%.{{Cite web |title=Company ESG Risk Rating - Sustainalytics |url=https://www.sustainalytics.com/esg-rating/renesas-electronics-corp/1008807517 |access-date=2024-08-22 |website=sustainalytics.com |language=en}}

Renesas' plans to reduce greenhouse gas emissions by 38% by 2030 compared to 2021 levels have been certified by the Science Based Targets Initiative (SBTi). The company aims to become carbon-neutral by 2050 in order to minimize the impact of climate change.{{Cite web |last=Decisions |first=Smart Energy |title=Renesas Electronics' Goals Approved by SBTi |url=https://www.smartenergydecisions.com/energy-management/2022/08/30/renesas-electronics-goals-approved-by-sbti |access-date=2024-08-22 |website=www.smartenergydecisions.com |date=29 August 2022 |language=english}}{{Cite web |last=Froese |first=Michelle |title=Renesas' greenhouse gas emissions targets validated |url=https://www.engineersgarage.com/renesas-greenhouse-gas-emissions-targets-validated/ |access-date=2024-08-22 |website=Engineers Garage |language=en-US}}{{Cite web |title=Climate Change Initiatives {{!}} Renesas |url=https://www.renesas.com/us/en/about/company/sustainability/climate-change |access-date=2024-08-22 |website=www.renesas.com |language=en}}

As of 2022, the in-house wafer fabrication of the semiconductor device is conducted by Renesas Electronics and Renesas Semiconductor Manufacturing, a wholly owned subsidiary, operating five front-end plants in the following areas:{{Cite web|title=Renesas Semiconductor Manufacturing Co., Ltd. {{!}} Renesas|url=https://www.renesas.com/eu/en/about/company/profile/global/rsmc.html|access-date=2021-01-18|website=www.renesas.com|language=en}}

• Naka, Takasaki, Saijo, Kawashiri, Palm Bay

The back-end facilities, directly affiliated to Renesas Electronics and its subsidiaries, are located in:{{Cite web |date=2021-09-29 |title=Production Strategy |url=https://www.renesas.com/eu/en/document/ppt/production-strategy?ir_ts=1670832824234&r=1587361 |website=renesas.com}}

• Yonezawa, Oita, Nishiki, Beijing, Suzhou, Kuala Lumpur, Penang

In May 2022 Renesas announced the re-opening of the "Kofu" fab, which will utilize the 300mm geometry for the fabrication of power semiconductors. The facility is scheduled to be online in 2024.{{Cite web |date=May 17, 2022 |title=Renesas to Invest and Restart Operation of Kofu Factory as 300mm Wafer Fab Dedicated for Power Semiconductors |url=https://www.renesas.com/us/en/about/press-room/renesas-invest-and-restart-operation-kofu-factory-300mm-wafer-fab-dedicated-power-semiconductors |website=renesas.com}}

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