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Renesas R5F104MFAFB#30
- Part No.:
- R5F104MFAFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F104MFAFB#30.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,794
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Product details
Overview
R5F104MFAFB#30 from Renesas is a 80-pin LFQFP (0.5 mm pitch), 96 KB flash, 5.5 KB RAM RL78/G14 16-bit MCU with ultra-low-power operation (66 μA/MHz active, 0.60 μA RTC+LVD mode), 1.6–5.5 V supply, and integrated 10-bit ADC (16 channels), UART (4 ch), I²C (4 ch), and 16-bit timers (12 ch). It targets industrial sensor nodes and battery-powered control modules requiring long runtime and mixed-signal integration.
For engineers reviewing the R5F104MFAFB#30 datasheet, R5F104MFAFB#30 pinout, R5F104MFAFB#30 application, or R5F104MFAFB#30 equivalent, this page delivers verified package mapping, validated peripheral configuration, confirmed low-power operating modes, and real-world substitution guidance for industrial embedded designs.
Technical Context
The R5F104MFAFB#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz), and includes multiply/divide/accumulate instructions. Its memory subsystem integrates 96 KB on-chip code flash (1 KB block size), 4 KB data flash (1M rewrite cycles), and 5.5 KB RAM.
Peripheral integration includes a 12-channel 16-bit Timer Array Unit (TAU), real-time clock with calendar/alarm, 10-bit ADC with internal reference and temperature sensor, dual DTC for autonomous transfers, and ELC for event-driven peripheral linking-enabling deterministic low-latency response without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 48 MHz max clock (32 MHz typical) |
| Flash / RAM | 96 KB code flash + 4 KB data flash + 5.5 KB SRAM - supports self-programming with boot swap |
| Power Consumption | 66 μA/MHz active; 0.60 μA in STOP mode with RTC + LVD - enables multi-year battery life |
| Analog Peripherals | 10-bit ADC (16 input channels, internal 1.45 V ref, temp sensor); no DAC or comparator |
| Digital Interfaces | 4× UART (LIN-capable), 4× I²C, 3× CSI (SPI-compatible), 12× 16-bit timers, 1× RTC, 1× WDT |
| Supply & Temp | 1.6–5.5 V operation; -40°C to +85°C (industrial grade D-specification) |
Pinout & Package
Package: 80-pin LFQFP, 12 × 12 mm body, 0.5 mm pitch, exposed thermal pad (recommended to connect to VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 | Crystal oscillator input | Connects to 32.768 kHz crystal for RTC; requires external load capacitors |
| P122 / X2 / EXCLK | Crystal oscillator output / external clock input | Drives 32.768 kHz crystal; also accepts external clock up to 1 MHz |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; debounced by on-chip POR/LVD |
| REGC | Regulator bypass capacitor terminal | Must connect 0.47–1 µF capacitor to VSS for stable internal voltage regulator operation |
| P50 / INTP1 / SI00 / RxD0 | Multi-function I/O (UART0 RX, SPI0 MISO, interrupt) | Configurable as UART0 receive, SPI0 data input, or external interrupt source |
| P51 / INTP2 / SO00 / TxD0 | Multi-function I/O (UART0 TX, SPI0 MOSI, interrupt) | Configurable as UART0 transmit, SPI0 data output, or external interrupt source |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.60 μA current draw with RTC and LVD active - enables decade-scale coin-cell operation |
| Background data flash rewriting | 1 million write cycles at full VDD range (1.8–5.5 V) with BGO - allows firmware updates without halting application |
| Event Link Controller (ELC) | Links 19–26 peripheral events directly (e.g., ADC end-of-conversion → DMA trigger) - eliminates CPU polling overhead |
| On-chip debug interface | Fully compliant with Renesas E2/E2 Lite debuggers via TOOL0/TOOLRxD/TOOLTxD pins - no external JTAG header required |
| Flexible clock system | High-accuracy (±1.0%) on-chip oscillator selectable from 1–64 MHz - reduces BOM cost and board space vs. external crystal |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data over UART-to-LoRaWAN gateway every 15 minutes. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, RTC-triggered wake-up, UART framing, and low-power state management. Use Value: 0.60 μA STOP mode extends CR2032 battery life beyond 5 years; integrated 10-bit ADC eliminates external signal conditioning IC. |
Use Scenario: Wall-mounted HVAC zone controller managing fan speed, valve position, and ambient sensing using local feedback loops. IC Role / Device Role / Timing Role: Real-time actuator coordinator with precise PWM timing (via TAU), analog monitoring, and serial communication to central panel. Use Value: 12-channel 16-bit timers enable simultaneous independent PWM outputs for fans/valves; 4× UART supports Modbus RTU and local debug port. |
| Programmable Logic Relay | Energy Metering Subsystem |
|
Use Scenario: DIN-rail mounted relay module executing ladder logic for machine safety interlocks with configurable I/O mapping. IC Role / Device Role / Timing Role: Deterministic I/O processor handling digital inputs/outputs, timer-based delays, and watchdog supervision. Use Value: ELC enables hardware-triggered I/O response <1 µs latency; HALT/STOP modes reduce thermal load in enclosed enclosures. |
Use Scenario: Secondary microcontroller in smart meter performing auxiliary tasks: tamper detection, LCD refresh, and backup RTC logging. IC Role / Device Role / Timing Role: Low-power co-processor managing non-critical timekeeping, display, and event logging while main SoC sleeps. Use Value: Dedicated RTC with calendar/alarm and 99-year date support ensures accurate billing cycle timestamps; 4 KB data flash stores tamper logs securely. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104MGAFB#30 | Same package and pinout; 128 KB flash + 16 KB RAM - larger memory footprint | Required for applications needing >96 KB firmware or >5.5 KB runtime buffer (e.g., OTA update staging) | Select when future firmware growth or complex protocol stacks demand extra memory headroom |
| R5F104MHAFB#30 | Same package and pinout; 192 KB flash + 20 KB RAM - highest memory in 80-pin LFQFP G14 family | Suitable for feature-rich HMI controllers or multi-protocol gateways where code size exceeds 128 KB | Choose only if memory analysis confirms >128 KB usage; otherwise R5F104MFAFB#30 offers optimal cost/performance balance |
Compared with R5F104MGAFB#30 and R5F104MHAFB#30, the R5F104MFAFB#30 provides the minimal viable memory configuration for industrial control firmware under 96 KB, reducing unit cost and PCB layout complexity while retaining identical peripheral set, power profile, and thermal behavior.
Availability
R5F104MFAFB#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and programmable logic relays requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for R5F104MFAFB#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/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive industrial control, sensor interfaces, and battery-operated equipment - balancing performance, integration, and energy efficiency.
FAQ
What is the maximum operating frequency of the R5F104MFAFB#30?
The R5F104MFAFB#30 supports a maximum CPU clock frequency of 32 MHz using the high-speed on-chip oscillator, delivering 44 DMIPS performance. External crystal or clock sources can drive the system up to 48 MHz, but the device's rated specification remains 32 MHz for guaranteed timing compliance across temperature and voltage ranges. The R5F104MFAFB#30 achieves this with ±1.0% oscillator accuracy from 1.8–5.5 V and -40°C to +85°C.
Does the R5F104MFAFB#30 include an integrated DAC or comparator?
No, the R5F104MFAFB#30 does not integrate a DAC or comparator. Its analog peripherals consist solely of a 10-bit ADC with 16 input channels, internal 1.45 V reference voltage, and integrated temperature sensor. For applications requiring analog output or voltage comparison, external components must be added. This omission aligns with the R5F104MFAFB#30's positioning as a cost-optimized industrial control MCU where discrete analog functions are often handled off-chip.
What debug interface does the R5F104MFAFB#30 support?
The R5F104MFAFB#30 supports Renesas' standard on-chip debug interface via dedicated TOOL0, TOOLRxD, and TOOLTxD pins - compatible with E2 and E2 Lite debuggers. It does not require JTAG or SWD headers, simplifying PCB layout. Debug functionality includes full break/step execution, register and memory inspection, and flash programming. The R5F104MFAFB#30 implements this without external debug circuitry, leveraging its integrated debug ROM and dedicated debug pins mapped to P40/P50/P51.
Is the R5F104MFAFB#30 pin-compatible with other RL78/G14 80-pin variants?
Yes, the R5F104MFAFB#30 is fully pin-compatible with all other RL78/G14 80-pin LFQFP variants (e.g., R5F104MGAFB#30, R5F104MHAFB#30) sharing the same FB package suffix. Pin assignments, electrical characteristics, and peripheral mappings are identical across this package group. Firmware and hardware designs targeting the R5F104MFAFB#30 can be upgraded to higher-flash variants without PCB revision - only flash programming and linker script adjustments are required.
What is the data flash endurance and voltage range for rewriting the R5F104MFAFB#30?
The R5F104MFAFB#30 features 4 KB of on-chip data flash rated for 1,000,000 write/erase cycles (typical) across the full supply range of 1.8–5.5 V. Rewrites can occur during normal operation using background operation (BGO), allowing code execution from program flash while data flash is updated. This capability is essential for reliable parameter storage, calibration data logging, or firmware update staging in the R5F104MFAFB#30 without system interruption.
R5F104MFAFB#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:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 12K 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:
R5F104MFAFB#30 FAQ
1.How can I place an order for R5F104MFAFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104MFAFB#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 R5F104MFAFB#30 reliable?
The price and inventory of R5F104MFAFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104MFAFB#30 is usually 5 days.
3.What payment methods are accepted for R5F104MFAFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104MFAFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104MFAFB#30?
R5F104MFAFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104MFAFB#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 R5F104MFAFB#30?
For technical support, including R5F104MFAFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104MFAFB#30 requirements.
6.How does Aetrix verify that R5F104MFAFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F104MFAFB#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 R5F104MFAFB#30 meets industry standards.
7.What is the process for return or replacement of R5F104MFAFB#30?
All R5F104MFAFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104MFAFB#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 R5F104MFAFB#30 part is unused and in its original packaging.
Return procedure for R5F104MFAFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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