RA0 microcontrollers from Renesas are low-cost devices that offer low power consumption and a feature set optimized for cost-sensitive applications. The MCUs can be used in such applications as consumer electronics, system control for small appliances, building automation, and industrial control systems.
Based on an Arm Cortex-M23 core, the 32-bit MCUs consume 84.3 µA/MHz in active mode, dropping to just 0.82 mA in sleep mode. A software standby mode cuts current consumption even further, allowing the device to sip just 0.2 µA. These features, coupled with a high-speed on-chip oscillator for fast wakeup, make the MCUs particularly well-suited for battery-operated products.
The first devices in the RA0 series, the RA0E1 group, operate from a supply voltage of 1.6 V to 5.5 V. This means there is no need for a level shifter/regulator in 5-V systems. An on-chip oscillator improves baud rate accuracy and maintains ±1.0% precision over a temperature range of -40°C to +105°C.
Other features of the RA0E1 group of MCUs include:
- Memory: Up to 64 kbytes of code flash and 12 kbytes of SRAM
- Analog Peripherals: 12-bit ADC, temperature sensor, internal reference voltage
- Communications Peripherals: 3 UARTs, 1 Async UART, 3 Simplified SPIs, 1 IIC, 3 Simplified IICs
- Safety: SRAM parity check, invalid memory access detection, frequency detection, A/D test, immutable storage, CRC calculator, register write protection
- Security: Unique ID, TRNG, flash read protection
RA0E1 microcontrollers are shipping now. Package options include 20-pin LSSOP, 32-pin LQFP, and QFN with 16, 24, or 32 leads.
Find more datasheets on products like this one at Datasheets.com, searchable by category, part #, description, manufacturer, and more.
The post Renesas expands general-purpose MCU choices appeared first on EDN.