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Renesas' new RL78/G21 is a 32 MHz, 1.6-5.5 V 16-bit MCU that the company rates at 34 µA/MHz, about half the RL78/G13 figure, with up to 256 KB flash and pin compatibility with G13 and G23. It is available now from US$0.56 at 10,000 units.
Read the story →Renesas' new RX74M and RX74N push the RX line to a 600 MHz RXv3e core on 22nm. They replace flash with 1 MB of write-without-erase MRAM, and the RX74M adds EtherCAT, a TSN-capable Gigabit switch and CAN FD. Zephyr already has a board page for the EK-RX74M kit.
Renesas has announced the SLG46801, which it calls its smallest configurable GreenPAK with multi-time programmability, in a 9-ball 1.155 x 1.155 mm WLCSP and a 12-lead STQFN; STQFN parts are sampling, and WLCSP mass production is planned for November 2026.
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