Renesas RA2E2 Group MCUs
Renesas Electronics’ RA2E2 Group of 32-bit microcontrollers (MCUs), based on the latest Arm Cortex-M23 core, offers a combination of ultralow power consumption, a set of peripherals targeted at IoT endpoint applications and space-saving packaging options including a tiny 16-pin WLCSP (wafer-level chip-scale package) device measuring only 1.87 x 1.84 mm. The 48 MHz MCUs enable fast design cycles and easy upgrades to other RA Family devices.
The MCUs are designed to address the needs of demanding IoT endpoint applications, including wearables, medical devices, appliances and industrial automation. They consume only 81 µA/MHz in active mode, with software standby current of only 200 nA and fast wakeup. The devices also support a wide temperature range of -40 to +125°C for harsh IoT operating environments. The group supports an I³C bus interface and integrates peripheral functions including an on-chip oscillator with precision of ±1%, power on reset and low-voltage detector, EEPROM and temperature sensor.
The group includes nine different devices, spanning from 16- to 24-pin packages and from 16 to 64 KB of flash memory along with 8 KB of SRAM. The devices also include 2 KB of data flash memory, a feature that some other low-pin count devices don’t provide. The I³C bus interface delivers high-speed communications of 4.6 Mbps while reducing power consumption. Security features include a cryptography accelerator (AES256/128), a true random number generator (TRNG) and memory protection units.
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