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Renesas R5F104MJAFA#30
- Part No.:
- R5F104MJAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F104MJAFA#30.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,543
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Product details
Overview
R5F104MJAFA#30 from Renesas is a 80-pin LQFP-0.65mm-pitch 16-bit RL78/G14 microcontroller with 256 KB flash, 20 KB RAM, and 12-bit ADC (20-channel), operating from 1.6 V to 5.5 V across -40°C to +85°C. It integrates UART, I²C, SPI, RTC, watchdog timer, and low-power STOP/HALT modes for embedded control in industrial HMI and sensor nodes.
For engineers reviewing the R5F104MJAFA#30 datasheet, R5F104MJAFA#30 pinout, R5F104MJAFA#30 application, or R5F104MJAFA#30 equivalent, key selection criteria include its 256 KB code flash size, 80-pin LQFP package with 0.65 mm pitch, integrated 12-bit ADC with 20 analog inputs, real-time clock with calendar function, and support for LIN-bus via UART.
Technical Context
The R5F104MJAFA#30 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz). It features an Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.
Its power architecture includes HALT, STOP, and SNOOZE modes, achieving 66 µA/MHz active current and 0.60 µA RTC+LVD retention. The on-chip high-speed oscillator offers ±1.0% accuracy across 1.8–5.5 V and -20 to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline and multiply/divide instructions |
| Max Clock | 32 MHz - delivers 44 DMIPS performance for real-time control tasks |
| Flash Memory | 256 KB - supports secure block erase prohibition and boot swapping |
| Data Flash | 8 KB - enables 1,000,000 write cycles with background operation (BGO) |
| RAM | 20 KB - sufficient for RTOS stacks, communication buffers, and sensor data processing |
| ADC | 12-bit resolution, 20-channel input - supports internal reference (1.45 V) and temperature sensor |
| Operating Voltage | 1.6 V to 5.5 V - allows direct interface with 1.8/2.5/3.3/5 V peripherals without level shifters |
| Temp Range | -40°C to +85°C - qualified for industrial-grade ambient operation |
Pinout & Package
Package: 80-pin LQFP (14 × 14 mm, 0.65 mm pitch), RoHS-compliant, with exposed thermal pad connected to VSS per design guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00/P01 | TxD1/RxD1, TI00/TO00 | Full-duplex UART channel 1 with timer capture/compare capability for encoder or pulse-width measurement |
| P10–P17 | SPI/I²C/UART multiplexed I/O | Configurable serial interfaces supporting CSI (SPI-like), I²C, and UART/LIN on shared pins |
| P20–P27 | ANI0–ANI7, AVREFP/AVREFM | 8 dedicated analog inputs with independent reference voltage terminals for precision ratiometric sensing |
| P30/P31 | INTP3/RTC1HZ, TI03/TO03 | Real-time clock output (1 Hz) and general-purpose timer I/O for wake-up or timing-critical event generation |
| P121/P122 | X1/X2 | Crystal oscillator inputs for external 32.768 kHz watch crystal or high-frequency resonator |
| P137 | INTP0 | Dedicated interrupt input with priority control for emergency system events (e.g., fault detection) |
| RESET | Active-low reset | Asynchronous reset input compatible with external supervisor ICs or push-button debouncing circuits |
| VDD/VSS | Power supply pins | Separate analog/digital power domains supported; REGC capacitor required for internal regulator stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.60 µA retention with RTC and LVD active - enables battery-powered operation for years |
| Background Data Flash rewrite | Code execution continues during 8 KB data flash updates - no firmware interruption required |
| Event Link Controller (ELC) | Hardware-peripheral chaining eliminates CPU polling overhead for time-critical signal chains |
| On-chip voltage detector (LVD) | 14-level programmable reset/interrupt threshold - protects against brown-out in variable-supply systems |
| Peripheral I/O redirection | Dynamic pin function remapping via PIO registers - simplifies PCB layout and firmware reuse |
| Integrated LIN bus support | UART channel with automatic sync-break detection and checksum generation - reduces external transceiver count |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Local display and button interface for PLC-controlled machinery with status feedback and parameter adjustment. IC Role / Device Role / Timing Role: Main controller managing LCD driving, keypad scanning, UART communication with PLC, and real-time logging to data flash. Use Value: 256 KB flash stores UI assets and firmware updates; 20 KB RAM accommodates graphics buffer and multitasking; RTC enables timestamped event logging. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ with wireless reporting. IC Role / Device Role / Timing Role: Sensor hub aggregating analog and digital sensor data, performing calibration, and entering ultra-low-power STOP mode between readings. Use Value: 0.60 µA STOP current extends 10-year battery life; 12-bit ADC ensures ±0.5°C temperature accuracy; BGO allows data storage without interrupting sensor acquisition. |
| Home Appliance Control | Energy Meter Interface |
Use Scenario: Washing machine main board controlling motor drivers, water valves, and user interface with safety monitoring. IC Role / Device Role / Timing Role: Safety-critical MCU executing motor control loops, monitoring door lock and water level sensors, and triggering LVD reset on supply anomaly. Use Value: 14-level LVD provides precise brown-out protection; ELC synchronizes ADC sampling with PWM periods; 80-pin I/O supports isolation and relay driver interfacing. | Use Scenario: Sub-metering module interfacing with shunt-based current sensors and optical port for utility data readout. IC Role / Device Role / Timing Role: Precision analog front-end controller digitizing mV-level shunt voltages, computing RMS/kWh, and communicating via UART/IR. Use Value: 20-channel ADC supports multi-phase current/voltage sensing; internal 1.45 V reference ensures stable gain over temperature; LIN-capable UART enables interoperability with legacy metering infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LJAFA#30 | 64 KB flash, 20 KB RAM, same 80-pin LQFP package and peripheral set | Lower memory capacity suits simpler control tasks without firmware update capability | Select when application firmware fits within 64 KB and no future feature expansion is planned |
| R5F104MJGFA#30 | Same 256 KB flash and 20 KB RAM, but rated for -40°C to +105°C industrial operation | Required for high-temperature environments such as motor drives or enclosed power electronics | Choose when ambient operating temperature exceeds +85°C or extended thermal margin is mandated |
Compared with R5F104LJAFA#30, the R5F104MJAFA#30 provides 4× more flash for field-upgradable firmware and complex UI logic; versus R5F104MJGFA#30, it trades extended temperature range for cost optimization in standard industrial settings.
Availability
R5F104MJAFA#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, home appliance controllers, and energy meter interfaces requiring stable component supply and long-term production support.
Supply support for R5F104MJAFA#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring robust peripheral integration and ultra-low standby current.
FAQ
What is the maximum operating frequency of the R5F104MJAFA#30?
The R5F104MJAFA#30 operates at up to 32 MHz using its on-chip high-speed oscillator, delivering 44 DMIPS performance. This frequency is achievable across the full 1.6–5.5 V supply range and -40°C to +85°C temperature range, with ±1.0% accuracy when using the internal oscillator calibrated at factory.
Does the R5F104MJAFA#30 support LIN bus communication?
Yes, the R5F104MJAFA#30 supports LIN bus communication through its UART channels, which include dedicated LIN-mode features such as automatic sync-break detection, checksum generation, and identifier filtering. No external LIN transceiver is required for basic node functionality, though one is needed for physical layer compliance.
What is the data flash endurance specification for the R5F104MJAFA#30?
The R5F104MJAFA#30 includes 8 KB of data flash memory rated for 1,000,000 write/erase cycles (typical) at VDD = 1.8–5.5 V. Background operation (BGO) allows program execution from code flash while rewriting data flash, enabling seamless firmware parameter updates without halting real-time tasks.
How many analog input channels does the R5F104MJAFA#30 support?
The R5F104MJAFA#30 supports 20 analog input channels (ANI0–ANI19) with 12-bit resolution. It includes dedicated AVREFP and AVREFM pins for external reference voltage connection, and an internal 1.45 V reference for ratiometric measurements independent of supply variation.
What package type and pin count does the R5F104MJAFA#30 use?
The R5F104MJAFA#30 uses an 80-pin LQFP package with 0.65 mm pitch (RENESAS code PLQP0080JB-E). It is RoHS-compliant and features an exposed thermal pad recommended to be connected to VSS for optimal thermal performance in continuous operation.
R5F104MJAFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G14
- 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:
- 64
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 17x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104MJAFA#30 FAQ
1.How can I place an order for R5F104MJAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104MJAFA#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 R5F104MJAFA#30 reliable?
The price and inventory of R5F104MJAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104MJAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F104MJAFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104MJAFA#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104MJAFA#30?
R5F104MJAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104MJAFA#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 R5F104MJAFA#30?
For technical support, including R5F104MJAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104MJAFA#30 requirements.
6.How does Aetrix verify that R5F104MJAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F104MJAFA#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 R5F104MJAFA#30 meets industry standards.
7.What is the process for return or replacement of R5F104MJAFA#30?
All R5F104MJAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104MJAFA#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 R5F104MJAFA#30 part is unused and in its original packaging.
Return procedure for R5F104MJAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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