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Renesas R5F101JEAFA#30
- Part No.:
- R5F101JEAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F101JEAFA#30.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,960
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Product details
Overview
R5F101JEAFA#30 from Renesas is a 52-pin LQFP-0.65mm, 64 KB flash, 4 KB data flash, 4 KB RAM RL78/G13 16-bit microcontroller with ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD), 1.6–5.5 V supply, and integrated 10-bit ADC (26 channels), RTC, UART, I²C, and SPI interfaces - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101JEAFA#30 datasheet, R5F101JEAFA#30 pinout, R5F101JEAFA#30 application, or R5F101JEAFA#30 equivalent, key selection considerations include its no-data-flash variant (vs. R5F100x), LQFP-52 package with 0.65 mm pitch, -40°C to +85°C industrial temperature grade (D suffix), and support for background data flash rewriting during program execution.
Technical Context
The R5F101JEAFA#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). It integrates a 12-bit interval timer, real-time clock with calendar/alarm, and watchdog timer with dedicated low-speed oscillator.
Its peripheral set includes up to 26-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, 8× 16-bit timers, 3× I²C/Simplified I²C channels, 2× UART/LIN, and 2× CSI (SPI-compatible) interfaces - all operating within the same 1.6–5.5 V supply range and optimized for HALT/STOP/SNOOZE low-power modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing control and low-energy interrupt response. |
| Flash Memory | 64 KB code flash (1 KB block size); supports self-programming with boot swap and flash shield window security. |
| Data Flash | None (R5F101x series); eliminates need for external EEPROM in cost-sensitive designs requiring only code storage. |
| RAM Size | 4 KB on-chip RAM; sufficient for real-time sensor fusion and protocol stack operation without external memory. |
| ADC Resolution | 10-bit SAR ADC with 26 analog inputs and internal 1.45 V reference; enables direct battery voltage and thermistor monitoring. |
| Operating Voltage | 1.6 V to 5.5 V single supply; supports direct Li-ion, 3.3 V, and 5 V system rail interfacing without level shifters. |
| Temperature Range | -40°C to +85°C (industrial D-grade); qualified for deployment in outdoor metering and factory automation environments. |
| Package | LQFP-52, 10 × 10 mm, 0.65 mm pitch (PLQP0052JA-A); compatible with standard SMT reflow and automated optical inspection. |
Pinout & Package
52-pin LQFP package (PLQP0052JA-A), 10 × 10 mm body, 0.65 mm lead pitch, exposed pad not present. Pin functions conform to RL78/G13 standard mapping for 52-pin variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O domain operation under dynamic load switching. |
| P10/P11/P12 | SPI0 (SCK00/SI00/SO00) | Hardware SPI master/slave interface with configurable clock polarity and phase for sensor or display communication. |
| P30/P31 | UART0 (TxD0/RxD0) | Full-duplex asynchronous serial interface supporting LIN bus physical layer compliance for automotive diagnostics. |
| P40/P41 | I²C0 (SCL00/SDA00) | Standard-mode (100 kbps) and fast-mode (400 kbps) I²C interface for EEPROM, RTC, or environmental sensor connectivity. |
| P00–P07 | ADC input group (ANI0–ANI7) | Eight dedicated analog inputs with programmable gain and sampling control for multi-sensor signal acquisition. |
| P20/P21 | AVREFP/AVREFM | External analog reference voltage terminals enabling precise ratiometric measurement independent of VDD variation. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external debounced pushbutton or supervisor IC assertion. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA typical current with RTC and LVD active - enables >10-year battery life in wireless sensor nodes. |
| Background Data Flash Rewrite | Code execution continues from flash while data flash is rewritten - critical for field firmware updates without service interruption. |
| On-chip voltage detector (LVD) | 14 selectable threshold levels (1.6–4.5 V) with interrupt/reset option - ensures graceful shutdown before brownout corruption. |
| Real-time clock with calendar | 99-year date/time tracking, alarm, and auto-correction - eliminates need for external RTC IC in time-stamped logging applications. |
| Multi-channel DMA controller | 4-channel DMA with 2-clock transfer between SFR and RAM - offloads CPU during ADC burst reads or UART buffering. |
| High-accuracy on-chip oscillator | +/-1.0% tolerance over -20°C to +85°C at 32 MHz - reduces BOM by eliminating external crystal in non-precision timing applications. |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Two-way communication and tariff calculation in residential electricity meters with tamper detection. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing RS-485/PLC communication, and timestamping consumption events via integrated RTC. Use Value: 64 KB flash stores dual tariff logic and secure bootloader; 10-bit ADC digitizes shunt/sensor outputs; LVD prevents flash corruption during power dips. | Use Scenario: Wireless vibration and temperature monitoring on rotating machinery in predictive maintenance systems. IC Role / Device Role / Timing Role: Signal acquisition hub aggregating analog sensor data, performing FFT preprocessing, and scheduling BLE/Wi-Fi transmission bursts. Use Value: 0.57 μA STOP mode extends AA battery life beyond 5 years; 26 ADC channels support multi-axis accelerometer and thermistor arrays. |
| Home Automation Gateway | Medical Wearable Monitor |
Use Scenario: Protocol translation hub connecting Zigbee, Z-Wave, and Bluetooth LE devices to cloud infrastructure. IC Role / Device Role / Timing Role: Peripheral manager handling concurrent UART (Zigbee), I²C (sensor hub), and SPI (display) traffic with DMA-assisted transfers. Use Value: 32 MHz CPU delivers 41 DMIPS for real-time packet parsing; 4 KB RAM accommodates multiple protocol stacks and encryption buffers. | Use Scenario: Continuous ECG and SpO₂ acquisition in compact wearable patches with motion artifact compensation. IC Role / Device Role / Timing Role: Analog front-end controller synchronizing ADC sampling, applying digital filtering, and managing low-power BLE advertising intervals. Use Value: Internal temperature sensor calibrates ADC offset drift; SNOOZE mode enables periodic wake-up for sensor readout with sub-μA average current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100JEAFA#30 | Same package and pinout; includes 4 KB data flash (R5F100x) vs. none (R5F101x). | Required when field-updatable parameter storage (e.g., calibration tables) is needed alongside code. | Select R5F100JEAFA#30 if data retention across firmware updates is mandatory; otherwise R5F101JEAFA#30 reduces cost and simplifies flash management. |
| RL78/G14 R5F104GJAFA#30 | Enhanced RL78/G14 variant with 128 KB flash, 12 KB RAM, and additional peripherals (e.g., 24-bit sigma-delta ADC). | Suitable for higher-complexity applications needing larger code space or precision analog measurement. | Choose RL78/G14 only when 64 KB flash is insufficient or 24-bit ADC resolution is required; R5F101JEAFA#30 remains optimal for cost-constrained, low-power embedded control. |
Compared with R5F100JEAFA#30, R5F101JEAFA#30 removes data flash to reduce die size and cost while retaining identical code flash, peripherals, and low-power performance - making it ideal for fixed-function firmware deployments. Versus RL78/G14, it trades enhanced analog capability and memory for lower unit cost and proven qualification in high-volume industrial designs.
Availability
R5F101JEAFA#30 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home automation gateways, and medical wearables requiring stable component supply and long-term industrial temperature support.
Supply support for R5F101JEAFA#30 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications where energy efficiency and peripheral integration outweigh raw processing throughput.
FAQ
What is the flash memory configuration of the R5F101JEAFA#30?
The R5F101JEAFA#30 contains 64 KB of on-chip code flash memory organized in 1 KB blocks, with no data flash memory (R5F101x series designation confirms this). It supports self-programming with boot swap functionality and flash shield window protection to prevent unauthorized access or overwrite of protected regions - essential for secure firmware updates in field-deployed devices.
Does the R5F101JEAFA#30 support hardware debugging?
Yes, the R5F101JEAFA#30 includes an on-chip debug function compliant with Renesas E1/E20 emulators, enabling full-cycle development with breakpoints, watchpoints, and real-time variable inspection. Debug access uses the dedicated SWD interface pins (RES# and P15), requiring no dedicated debug port pins - preserving I/O count for application use while maintaining full visibility into runtime behavior of the R5F101JEAFA#30.
What are the low-power operating modes supported by the R5F101JEAFA#30?
The R5F101JEAFA#30 supports HALT, STOP, and SNOOZE modes. In STOP mode, current consumption drops to 0.57 μA while retaining RTC and LVD operation - ideal for infrequent wake-up scenarios. HALT mode reduces current to 66 μA/MHz during active computation, and SNOOZE allows selected peripherals (e.g., UART, ADC) to operate autonomously while the CPU sleeps, minimizing latency for time-critical events in the R5F101JEAFA#30.
Can the R5F101JEAFA#30 interface directly with 1.8 V or 2.5 V peripherals?
Yes, the R5F101JEAFA#30 supports different-potential interface operation: selected I/O ports can be configured for 1.8 V, 2.5 V, or 3.0 V logic levels while powered from a 1.6–5.5 V VDD rail. This eliminates external level shifters when connecting to low-voltage sensors, memories, or transceivers - simplifying board design and reducing BOM cost for mixed-voltage systems using the R5F101JEAFA#30.
What is the maximum ADC sampling rate and resolution supported by the R5F101JEAFA#30?
The R5F101JEAFA#30 integrates a 10-bit successive approximation register (SAR) ADC with up to 26 input channels and an internal 1.45 V reference. Its maximum conversion rate is 1.25 MSPS (800 ns per sample), achievable in single-shot or continuous scan mode. The ADC supports programmable sampling time, hardware trigger synchronization (e.g., from timer overflow), and result alignment - enabling precise, deterministic acquisition for motor control or sensor signal conditioning in the R5F101JEAFA#30.
R5F101JEAFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 38
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101JEAFA#30 FAQ
1.How can I place an order for R5F101JEAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101JEAFA#30 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F101JEAFA#30 reliable?
The price and inventory of R5F101JEAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101JEAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F101JEAFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101JEAFA#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101JEAFA#30?
R5F101JEAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101JEAFA#30 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F101JEAFA#30?
For technical support, including R5F101JEAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101JEAFA#30 requirements.
6.How does Aetrix verify that R5F101JEAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F101JEAFA#30 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F101JEAFA#30 meets industry standards.
7.What is the process for return or replacement of R5F101JEAFA#30?
All R5F101JEAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101JEAFA#30, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F101JEAFA#30 part is unused and in its original packaging.
Return procedure for R5F101JEAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F101JEAFA#30 Tags
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