R5F100JEAFA#10 - RL78/G13 16-bit MCU 64KB Flash 52-LQFP | Renesas
MPN: R5F100JEAFA#10 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.69 | $1.69 |
| 10 | $1.55 | $15.50 |
| 100 | $1.34 | $134.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.02 | $1,020.00 |
| 3,000 | $0.92 | $2,760.00 |
R5F100JEAFA#10 Overview
A microcontroller (MCU) is a single-chip computer containing a processor core, program memory (Flash), data memory (RAM), and a rich set of on-chip peripherals (ADC, timers, communication interfaces, GPIOs). In the broader system hierarchy, the RL78/G13 sits in the entry-level 16-bit MCU segment alongside Renesas RX and RA families (32-bit), and competes with low-power 8-bit/16-bit MCUs from TI MSP430, ST STM8, and Microchip PIC in cost- and energy-sensitive designs.
Key differentiating features include a 1.6 V to 5.5 V wide operating voltage range, on-chip oscillator (no external crystal required for basic operation), 4 KB data flash, multi-channel 10-bit ADC, hardware comparator, and safety-support functions targeting IEC/UL 60730 household appliance compliance. The RL78/G13 family balances low power with sufficient analog and timing peripherals to replace 8-bit MCUs while adding RISC performance.
The architecture uses a CISC 16-bit RL78 core with Harvard-style bus, supports serial interfaces (CSI, UART, I2C), multiple general-purpose and event-link timers, and a data-flash area for non-volatile parameter storage. Hardware CRC, IEC 60730 safety routines, and on-chip debugging are integrated for fast firmware development.
Typical applications include white-goods motor control (washing machines, dishwashers, induction cookers), low-power IoT sensor nodes, smart-meter metering peripherals, HVAC control boards, and battery-driven consumer devices where 230 nA standby extends coin-cell lifetime. Engineers also use it for industrial sensor interfaces and small home appliances with safety certification needs.
When designing with this part, evaluate peripheral count, RAM and flash, plus pin count first - the 52-LQFP package offers more I/O than 30- or 44-pin variants in the same family. For battery products calculate current budget from the datasheet STOP current (230 nA) plus wake-up frequency; for safety-sensitive loads confirm IEC/UL 60730 firmware hooks are enabled.
This page synthesizes distributor pricing, drop-in alternatives, lifecycle status, and application guidance not always surfaced on the manufacturer product page.
Drop-in alternatives for R5F100JEAFA#10 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
R5F100JFAFA#10
✅ Drop-In📋 Reference alternative (not in catalog)
R5F100JEAFA#V0
✅ Drop-In📋 Reference alternative (not in catalog)
R5F100LEAFB#10
✅ Drop-In📋 Reference alternative (not in catalog)
R5F100JGAFB#10
✅ Drop-In📋 Reference alternative (not in catalog)
R5F100JEAFA#10 Maximum Ratings & Electrical Characteristics
| Core Architecture | RL78 (16-bit CISC RISC) |
| Family | RL78/G13 |
| Program Memory (Flash) | 64 KB |
| Data Flash | 4 KB |
| Maximum CPU Frequency | 32 MHz |
| Performance | 43.2 DMIPS |
| Operating Voltage Range | 1.6 V to 5.5 V |
| Operating Temperature Range | -40 C to +85 C |
| Active CPU Current | 66 uA/MHz |
| STOP Standby Current | 230 nA |
| Package | 52-LQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| On-chip Oscillator | Yes |
| ADC | 10-bit (multi-channel) |
| On-chip Comparator | Yes |
| Safety Standards | IEC/UL 60730 household appliance compliance |
| RoHS Status | Compliant |
R5F100JEAFA#10 Pin Configuration
| Pin 1 | P20/ANI0/ANOA0 — Port 2 / analog input |
| Pin 2 | P21/ANI1/ANOA1 — Port 2 / analog input |
| Pin 3 | P22/ANI2/ANOA2 — Port 2 / analog input |
| Pin 4 | P23/ANI3/ANOA3 — Port 2 / analog input |
| Pin 5 | P24/ANI4/ANIA4 — Port 2 / analog input |
| Pin 6 | P25/ANI5/ANIA5 — Port 2 / analog input |
| Pin 7 | VSS — Ground |
| Pin 8 | P30/SCK00/INTP3 — Port 3 / serial clock / interrupt |
| Pin 9 | P31/SI00/RxD0 — Port 3 / serial input / UART RX |
| Pin 10 | P32/SO00/TxD0 — Port 3 / serial output / UART TX |
| Pin 11 | P33/INTP1/SS00 — Port 3 / interrupt / SPI slave-select |
| Pin 12 | P34/INTP4 — Port 3 / interrupt |
| Pin 13 | P40/TOOL0D — Port 4 / debug data |
| Pin 14 | P41/TOOL0C — Port 4 / debug clock |
| Pin 15 | P42/RESET — Port 4 / external reset |
| Pin 16 | P43/INTP2 — Port 4 / interrupt |
| Pin 17 | P50 — Port 5 |
| Pin 18 | P51 — Port 5 |
| Pin 19 | P52 — Port 5 |
| Pin 20 | P53 — Port 5 |
| Pin 21 | P54 — Port 5 |
| Pin 22 | P55 — Port 5 |
| Pin 23 | P56 — Port 5 |
| Pin 24 | P57 — Port 5 |
| Pin 25 | P60/SSI00 — Port 6 / serial interface |
| Pin 26 | P61/SSI01 — Port 6 / serial interface |
| Pin 27 | P62 — Port 6 |
| Pin 28 | P63 — Port 6 |
| Pin 29 | P64 — Port 6 |
| Pin 30 | P65 — Port 6 |
| Pin 31 | P66 — Port 6 |
| Pin 32 | P67 — Port 6 |
| Pin 33 | P70/INTP0 — Port 7 / external interrupt |
| Pin 34 | P71/INTP5 — Port 7 / external interrupt |
| Pin 35 | P72 — Port 7 |
| Pin 36 | P73 — Port 7 |
| Pin 37 | P74 — Port 7 |
| Pin 38 | P75 — Port 7 |
| Pin 39 | P76 — Port 7 |
| Pin 40 | P77 — Port 7 |
| Pin 41 | P100/AN00 — Port 10 / ADC channel |
| Pin 42 | P101/AN01 — Port 10 / ADC channel |
| Pin 43 | P102/AN02 — Port 10 / ADC channel |
| Pin 44 | P103/AN03 — Port 10 / ADC channel |
| Pin 45 | P104/AN04 — Port 10 / ADC channel |
| Pin 46 | P105/AN05 — Port 10 / ADC channel |
| Pin 47 | P106/AN06 — Port 10 / ADC channel |
| Pin 48 | P107/AN07 — Port 10 / ADC channel |
| Pin 49 | AVREFM — ADC negative reference |
| Pin 50 | AVREFP — ADC positive reference |
| Pin 51 | AVSS — Analog ground |
| Pin 52 | VDD — Power supply (1.6 V to 5.5 V) |
Typical Applications
R5F100JEAFA#10 is suitable for 7 applications: White-Goods Motor Control, Battery-Powered IoT Sensor Nodes, Smart-Meter Peripheral Boards, HVAC Climate Control Boards, Induction Cooker Safety Controller, Dishwasher Control Boards, Low-Power Wearable Sensors.
White-Goods Motor Control
The R5F100JEAFA#10 suits washing-machine motor controllers thanks to its RL78/G13 32 MHz core, multi-channel 10-bit ADC for current/voltage feedback, and built-in timers for PWM generation. The 64 KB flash holds brushless-DC or induction-motor firmware plus IEC/UL 60730 safety routines. STOP-mode 230 nA standby extends power-on retention, and 1.6-5.5 V wide supply tolerates 5 V motor-rail noise without extra regulators in field designs.
Recommended
Battery-Powered IoT Sensor Nodes
The R5F100JEAFA#10 delivers 230 nA STOP standby and 66 uA/MHz active, making it ideal for coin-cell IoT nodes that wake briefly to measure, transmit, and return to sleep. Its on-chip oscillator reduces BOM cost by removing external crystals for low-speed UART/SPI sensing. The 4 KB data flash stores device calibration across reboots. Pair with a sub-GHz or BLE module for years of battery life on a single CR2032.
Recommended
Smart-Meter Peripheral Boards
The R5F100JEAFA#10 fits smart-meter and sub-metering modules that require UL/IEC compliance, on-chip ADC for voltage/current sensing, and reliable data-flash retention of billing parameters. The RL78/G13 hardware CRC and watchdog support tamper detection, while 52-LQFP offers enough GPIO for relays and isolated sensors. Wide 1.6-5.5 V tolerates battery-backed metering rails across outage events without firmware rework.
Recommended
HVAC Climate Control Boards
The R5F100JEAFA#10 drives HVAC thermostat and damper control where the RL78/G13's 16-bit core handles proportional-integral loops and its 32 MHz headroom enables smooth PWM on fan stages. Wide supply tolerance simplifies 24 VAC-derivative powering. The IEC/UL 60730 routines satisfy safety certifications required for residential HVAC. 52-LQFP gives ample GPIO for keypad, display, and UART-modbus connectivity in a single chip.
Recommended
Induction Cooker Safety Controller
The R5F100JEAFA#10 is a strong safety coprocessor in induction-cooker designs where on-chip comparator and ADC run zero-crossing detection, overcurrent, and pan-presence checks. Hardware CRC and watchdog back each detection path per IEC 60335 Class-B. STOP-mode 230 nA standby aids standby-power regulations (EuP/ErP). 64 KB flash holds dual firmware: main control plus safety monitor.
Recommended
Dishwasher Control Boards
The R5F100JEAFA#10 in dishwasher main boards drives pumps, valves, heaters, and user interface while IEC/UL 60730 routines guard the safety chain. The RL78/G13's low active current supports ECO-mode quiet cycles without sacrificing real-time loop response. Wide 1.6-5.5 V VDD tolerates rectified 24 V or switched-mode supply ripple. 4 KB data flash retains diagnostic logs and cycle counters across power cycles.
Recommended
Low-Power Wearable Sensors
The R5F100JEAFA#10 runs always-on wearables - fitness bands, body-temperature patches, and BLE-beacon tags - by combining 230 nA STOP current with a wake-on-timer interrupt chain. The 10-bit ADC captures biometric signals through low-side sensor interfaces, and the 52-LQFP keeps PCB area at <100 mm^2 for in-band integration. RL78's wide supply tolerance across coin-cell discharge curves avoids brownout resets.
Recommended
Recommended Products Summary
Engineering reference data for R5F100JEAFA#10 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | R5F100JFAFA#10 | R5F100JEAFA#V0 | R5F100LEAFB#10 |
|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 52-LQFP (10x10 mm) | 52-LQFP - same | 52-LQFP - same | 64-LQFP - different |
| Core | RL78 16-bit, 32 MHz | RL78 16-bit, 32 MHz | RL78 16-bit, 32 MHz | RL78 16-bit, 32 MHz |
| Flash | 64 KB | 48 KB | 64 KB | 64 KB |
| Operating Voltage | 1.6 V to 5.5 V | 1.6 V to 5.5 V | 1.6 V to 5.5 V | 1.6 V to 5.5 V |
| STOP Standby Current | 230 nA | 230 nA | 230 nA | 230 nA |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| IEC/UL 60730 Safety | Yes (hardware-assisted) | Yes | Yes | Yes |
Key Differentiators
- 230 nA STOP standby - lowest in 16-bit MCU class (vs R5F100JFAFA#10)
- Hardware-assisted IEC/UL 60730 safety routines on-chip (vs R5F100LEAFB#10)
- On-chip comparator and ADC consolidated for analog sensing (vs PIC16F1823-I/SL (Microchip))
Design Notes
Decouple VDD with a 4.7 uF bulk plus 0.1 uF ceramic placed within 5 mm of the VDD/AVSS pins. The wide 1.6-5.5 V supply range lets the part run straight off a 5 V rectified line - add an LC pi-filter if motor noise couples onto the rail. Estimated local decoupling ESR should stay <50 milliohm at 32 MHz to avoid logic-noise injection.
Do not leave the RESET pin floating. The RL78/G13 requires a defined reset state; a 10 kohm pull-up to VDD plus 0.1 uF delay-cap gives clean power-on behavior. Likewise, ensure TOOL0C/TOOL0D pins are not erroneously loaded during reset - they are the serial-programming interface. An accidental PCB short there can lock up the debug port. Finally, retain EMC discipline at 32 MHz: keep the high-speed crystal-trace loop <5 mm with ground guard ring.
Route the AVREFP/AVREFM ADC reference pins with a Kelvin sense-and-drive layout: place the bypass cap within 3 mm of the AVREF pins. Use a separate analog ground island for AVSS tying back at a single point under the MCU's exposed pad. The 52-LQFP (10x10 mm) has no thermal pad, so Theta_JA is dominated by board copper; spread thermal vias under the die-attached area if the part runs continuously at 32 MHz with all peripherals active.
Compliance Information
RoHS and REACH compliant per Renesas product page. Industrial -40C to +85C range only; AEC-Q100 (automotive) is not applicable to this ordering code.
