Core specifications
R7FA2E1A92DFL#AA0 is based on Armv8-M architecture48MHz Cortex®-M23 core, equipped with128KB code flash memory、16KB SRAMand4KB data flash memory(Can be used as EEPROM).Available in LQFP-48 package (7×7mm)40 I/O pins.support1.6V to 5.5VThe wide operating voltage range, operating temperature-40℃ to 85℃.Integration of analog peripherals13-channel 12-bit ADCand2-channel low-power analog comparator.Communication interface includesI²C、SPI、UART/USARTandsmart card interface.Timer resources provided6-channel 16-bit general-purpose PWM timer、1 channel 32-bit general-purpose timerand2-channel 16-bit asynchronous timer.On-chip integratedAES128/256 hardware encryption、true random number generator（TRNG）、Capacitive touch sensing unit(CTSU) andtemperature sensor。
Core advantage: perfect balance of ultra-low power consumption and wide voltage
The core value of R7FA2E1A92DFL#AA0 in product design is concentrated inIndustry-leading ultra-low power consumptionwith1.6V to 5.5V wide operating voltageon the combination.Adopting Renesas' optimized process and low-power technology, this chip has excellent energy efficiency among similar products, and is especially suitable for portable devices powered by a single battery or two dry batteries.The minimum operating voltage of 1.6V allows it to maintain stable operation at the end of battery discharge, greatly extending the service life of the device.
Enhanced capacitive touch sensing unitis another highlight of this chip, supportingUp to 30 channelscapacitive touch input.It can realize touch interactions such as buttons, sliders, and scroll wheels without the need for external dedicated touch chips. It has obvious advantages in the design of cost-sensitive consumer electronics and home appliance panels.On-chip integratedtemperature sensorandAES hardware encryption engine, further expands its application boundaries in industrial monitoring and secure communication scenarios.
Rich packaging options(LQFP, QFN, LGA, BGA, WLCSP) enables it to be flexibly adapted to a variety of hardware forms ranging from wearable devices with limited space to industrial control boards that require more I/O.The pin and peripheral compatibility with the RA2L1 product group also reserves sufficient hardware flexibility for subsequent product upgrades and function expansion.
Typical application scenarios
This chip has a wide range of coverage and is especially suitable for small and medium-sized embedded systems that require ultra-low power consumption, wide voltage and cost sensitivity.
Smart sensors and industrial data collectionIt is one of its core application directions.The IO-Link sensor solution based on RA2E1 combinesZSSC3240 sensor signal conditioner, realizing a complete closed loop of pressure measurement, signal processing and IO-Link communication.The combination of 13-channel 12-bit ADC and low-power analog comparator enables it to accurately collect weak analog signals from various sensors.
Smart home appliances and consumer electronicsThis chip is also widely used.Made based on RA2E1Intelligent companion clock, combined with Tuya Wi-Fi module to realize weather forecast display, indoor temperature and humidity monitoring and smart home linkage control.High-end kitchen appliances such as digitally controlled air fryer ovens and fully automatic espresso machines also use RA2E1 as the main control core.
Battery powered portable devicesaspects, ultra-low power consumption and wide voltage range of 1.6V to 5.5V make it suitable forBattery powered camera (AI object detection + motion sensing)、portable power systemandUltra-low power Wi-Fi/Bluetooth smart lockIt has significant battery life advantages among other products.Industrial capacitive touch non-contact buttonsandCapacitive touch infusion level monitorThen the on-chip CTSU unit is fully utilized.
Industrial programmable logic controllerandDisplay dimming systemRA2E1 is also used as the core control unit.
Selection comparison
R7FA2E1A92DFL#AA0 belongs to the Renesas RA2E1 series. The same series provides a wealth of packages and capacity branches for project selection.
Different flash memory capacities in the same series：R7FA2E1A72DFL#AA0It is a 64KB Flash version, suitable for lightweight applications with smaller code size;R7FA2E1A92DFL#AA0It is a fully equipped version with 128KB Flash.
Different packages in the same series: RA2E1 series offers from16-pin WLCSP(1.84×1.87mm) to64-pin LQFPA variety of packaging options can be flexibly selected according to PCB area and I/O requirements.
Pin-compatible upgrades for the same series：RA2L1 serieswith RA2E1Pin and peripheral compatible, but additionally integratedCAN interface, suitable for scenarios such as elevator call boards and BMS that require CAN bus communication.
Cross-series high-precision ADC upgrade: If you need a higher precision analog front end, you can chooseRA2A1 series, which integrates24-bit Σ-Δ ADCSuitable for high-precision data acquisition applications.
write at the end
Renesas R7FA2E1A92DFL#AA0 uses a 48MHz Cortex-M23 core, 128KB Flash, 16KB SRAM, 13-channel 12-bit ADC and enhanced capacitive touch unit to provide a localized solution with both high performance and low power consumption in cost-sensitive embedded applications such as smart sensors, home appliance control and portable devices.Its wide voltage range of 1.6V to 5.5V and industry-leading ultra-low power consumption make it a strong contender for main control selection of battery-powered equipment.
As a chip agent distributor that has been deeply involved in the electronic components industry since 2011, Shenzhen Hongmai Electronics Co., Ltd. has long-term stock of Renesas R7FA2E1A92DFL#AA0 and RA2E1 series full-model MCUs in original stock, and also supplies R7FA2E1A72DFL#AA0 (64KBFlash), RA2L1 (with CAN) and other different capacities and peripheral versions, support factory batch direct shipment, small batch samples and technical selection assistance.If you need to inquire about prices or need to know the selection suggestions of different packages and capacities of the same series, please feel free to contact us at any time (tel: 0755-23815611, QQ 2355878270).Shenzhen Hongmai Electronics Co., Ltd.
