Renesas Electronics Corporation (ルネサス エレクトロニクス株式会社, Runesasu Erekutoronikusu Kabushiki Gaisha) is a Japanese semiconductor manufacturer headquartered in Tokyo, Japan, initially incorporated in 2002 as Renesas Technology, the consolidated entity of the semiconductor units of Hitachi and Mitsubishi excluding their dynamic random-access memory (DRAM) businesses,[4] to which NEC Electronics merged in 2010, resulting in a minor change in the corporate name and logo to as it is now.

[4] Renesas Electronics started operation in April 2010, through the integration of NEC Electronics, established in November 2002 as a spin-off of the semiconductor operations of NEC with the exception of the DRAM business,[8][9] and Renesas Technology established on April 1, 2003, the non-DRAM chip joint venture of Hitachi and Mitsubishi, with their ownership percentage of 55 and 45 in order.

[11] A basic agreement to merge was reached by April 2010 and materialized on the first day, forming the fourth largest semiconductor company by revenue according to an estimation from iSuppli.

[38] In March 2021, a fire at the Naka Factory owned by a subsidiary of Renesas caused significant damage to equipment.

[43] In July 2022, Renesas completed the acquisition of Reality Analytics, Inc., adding additional resources for machine learning and artificial intelligence.

[45] In September 2022, Renesas signed a strategic partnership with VinFast from Vietnam to announce expanding agreement of automotive technology development of electric vehicles (EVs) and delivery of system components.

[48] In June 2023, Renesas completed the acquisition of Panthronics AG, an Austrian fabless semiconductor company specializing in high-performance wireless products.

[51] In February 2024, Renesas announced that it had reached an agreement to buy printed circuit board design software company Altium for $5.9 billion.

[54] In August 2024, Renesas announced that it completed the acquisition of printed circuit board design software company Altium.

[59][60] The RX family was launched in 2009 by Renesas Technology with the first product range designated the RX600 series[61] and targeting applications such as metering, motor control, human–machine interfaces (HMI), networking, and industrial automation.

The RA, an acronym for Renesas Advanced, is the family name for a range of 32-bit microcontrollers with Arm Cortex processor cores.

[63] The RA family's key features are the stronger embedded security, high-performance, and CoreMark ultra-low power operation.

100 120 200 768, 1024, 2048 256, 384, 640 56, 64, 80, 100 144, 145 176 1.8 - 3.6 2.7 - 3.6 2.7 - 3.7 The Renesas RZ family is a high-end 32 & 64 bit microprocessors[65] that is designed for the implementations of high resolution human machine interface (HMI), embedded vision, real-time control, and industrial Ethernet connectivity.

[75] 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).