Targeting cost-sensitive applications, Renesas Electronics Corp. has expanded its 32-bit RA family of microcontrollers (MCUs) with a new entry-line group based on the latest Arm Cortex-M33 core. The new 100-MHz RA4E1 Group balances low power consumption with high performance and a range of feature options.
Click for a larger image. (Source: Renesas Electronics)
The RA MCU family now consists of over 150 parts ranging from 48 MHz to 200 MHz. The RA family MCUs offer low power consumption, a range of communications options, and “best-in-class” security options, including Arm TrustZone technology. In addition, all RA devices are supported by the Renesas Flexible Software Program (FSP) that includes highly efficient drivers and middleware to help designers implement communications and security features. They also have access to the Arm ecosystem. The FSP’s GUI enables use of legacy code as well as compatibility and scalability with other RA Family devices.
The RA4E1 MCUs are the first Entry-Line Group in the 100-MHz RA4 Series. The group includes four different parts that offer 48-pin to 64-pin packages, 256 kB to 512 kB of flash memory, and 128 kB of SRAM. The devices also integrate several interfaces, including USB 2.0 Full-Speed Device, Serial Communication, CAN and QSPI.
The RA4E1 devices claim the lowest active power consumption in their class, using 60 µA/MHz while executing from Flash at 100 MHz. The devices offer an optimized combination of peripherals, connectivity options, and system cost saving features, such as an on-chip high precision (±0.25%) internal oscillator using FLL, GPIOs, advanced analog, low-voltage detection, and an internal reset function.
A block diagram of the RA4E1 MCU superset. Some individual devices within the group have a subset of the features. Click for a larger image. (Source: Renesas Electronics)
These RA4E1 MCUs are suited for a range of applications including home appliances, smart home and building automation, home entertainment, and industrial sensor hubs. Renesas has combined the RA4E1 MCUs with complementary analog and power to create Winning Combinations designs for a variety of applications. Examples include a Smart IoT Air Purifier and a Smart Coffee Machine.
The RA4E1 MCUs are available today, along with the FPB-RA4E1 fast prototype board with an on-chip debugger. The board is priced in the $20 range.
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