Renesas R5F104MKAFA#30
- Part No.:
- R5F104MKAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F104MKAFA#30.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 80LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:450
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Product details
Overview
R5F104MKAFA#30 from Renesas is an RL78/G14 8-bit microcontroller with 256 KB flash, 24 KB RAM, and 80-pin LQFP-0.65 mm package, operating from 1.6–5.5 V at -40 to +85°C (industrial A-grade). It delivers 44 DMIPS at 32 MHz, features a 10-bit ADC (20 channels), RTC with calendar, and ultra-low-power HALT/STOP/SNOOZE modes (0.60 μA RTC+LVD). Used in industrial HMI, sensor nodes, and motor control interfaces.
For engineers reviewing the R5F104MKAFA#30 datasheet, R5F104MKAFA#30 pinout, R5F104MKAFA#30 application, or R5F104MKAFA#30 equivalent, key selection criteria include its 80-pin LQFP-0.65 mm footprint, 256 KB code flash with data flash shield window, integrated event link controller (ELC) for peripheral coordination, and support for LIN-bus UARTs in safety-critical embedded systems.
Technical Context
The R5F104MKAFA#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs @ 32 MHz to 30.5 µs @ 32.768 kHz). It integrates a Data Transfer Controller (DTC) supporting chain transfer and block modes triggered by 19–26 event sources via the Event Link Controller (ELC).
Peripheral integration includes up to 12 × 16-bit timers (TAU, RJ, RD, RG), 1 × 12-bit interval timer, 1 × real-time clock with alarm/calendar, 1 × watchdog timer, and serial interfaces: 3–4 UART/LIN channels, 4–10 I²C/simplified I²C channels, and 3–8 CSI (SPI-compatible) channels - all configurable through peripheral I/O redirection registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 8-bit CISC with 3-stage pipeline, 44 DMIPS @ 32 MHz |
| Flash Memory | 256 KB code flash with 1 KB block erase, self-programming & boot swap |
| Data Flash | 8 KB with background operation (BGO), 1M rewrite cycles, 1.8–5.5 V write voltage |
| RAM | 24 KB on-chip SRAM, including dedicated areas for flash library execution |
| ADC | 10-bit resolution, 20-channel input, internal 1.45 V reference & temperature sensor |
| Operating Voltage | 1.6–5.5 V supply range; supports direct interface with 1.8/2.5/3.0 V logic devices |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD active), SNOOZE |
Pinout & Package
Package: 80-pin LQFP, 14 × 14 mm body, 0.65 mm pitch, JEDEC standard PLQP0080JB-E footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P01 | General-purpose I/O / Analog input (ANI17/ANI16) | Support TTL input buffer, N-ch open drain, pull-up resistor; used for analog sensing or UART TX/RX |
| P10–P15 | Multi-function serial interface pins (SCK11, SI11, SO11, SDA20, SCL20) | Configurable CSI/I²C/UART functions via PIOR0/1; enable simultaneous SPI master/slave and I²C communication |
| P121–P122 | Crystal oscillator inputs (X1/X2) | Drive external 32.768 kHz crystal for RTC accuracy; supports EXCLK input mode |
| P137 | Interrupt input (INTP0) | Dedicated wake-up source from STOP/HALT modes; supports edge-triggered interrupt |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits |
| VDD / VSS | Power supply / Ground | Dual power domains: VDD powers digital/analog circuits; VSS is common ground reference |
| REGC | Regulator capacitor terminal | Requires 0.47–1 µF capacitor to VSS for internal voltage regulator stability |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Links 19–26 peripheral events without CPU intervention, reducing latency and ISR overhead in real-time control loops |
| Data Transfer Controller (DTC) | Enables autonomous memory-to-peripheral transfers (e.g., ADC → RAM) using repeat/block modes, freeing CPU for computation |
| Real-time Clock (RTC) | Full calendar (99-year range), alarm, and clock correction; operates in STOP mode at 0.60 μA, enabling battery-backed timekeeping |
| Flash Shield Window | Prevents unauthorized read/write access to protected flash regions during debug or field operation, enhancing firmware security |
| Multi-Voltage I/O | Direct interface with 1.8 V, 2.5 V, and 3.0 V peripherals without level shifters, simplifying mixed-voltage system design |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Touch-enabled local control panel for HVAC or PLC subsystems with display, buttons, and status LEDs. IC Role / Device Role / Timing Role: Main controller managing UI rendering, button debouncing, LED PWM, and RS-485/LIN communication to host controller. Use Value: Integrated 10-bit ADC reads potentiometer inputs; RTC enables scheduled operations; low-power STOP mode extends battery life in backup scenarios. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ via analog/digital sensors. IC Role / Device Role / Timing Role: Sensor aggregator with ADC, UART for sensor fusion, and RTC-triggered wake-up for periodic measurement bursts. Use Value: 0.60 μA STOP mode with RTC active enables multi-year battery life; BGO allows logging while processing sensor data. |
| Motor Drive Interface | Energy Metering Module |
Use Scenario: Compact BLDC motor driver board requiring commutation timing, fault monitoring, and CAN/LIN diagnostics. IC Role / Device Role / Timing Role: Timing-critical peripheral coordinator using ELC to synchronize PWM outputs, ADC sampling, and fault flag capture. Use Value: TAU timers generate precise 3-phase PWM; ELC eliminates CPU polling delay; 16–20 channel ADC monitors phase currents and bus voltage. | Use Scenario: DIN-rail mounted electricity meter with metrology IC interface, tamper detection, and secure firmware updates. IC Role / Device Role / Timing Role: Secure host MCU handling SPI communication with metrology ASIC, EEPROM logging, and encrypted OTA update verification. Use Value: Flash shield window prevents extraction of calibration constants; data flash stores lifetime energy counters with 1M-cycle endurance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104MLAFA#30 | Same 80-pin LQFP-0.65 mm package, but 384 KB flash and 32 KB RAM | Higher code/data capacity required for complex protocol stacks (e.g., Modbus TCP + web server) | Select when firmware size exceeds 256 KB or additional RAM is needed for large buffers or RTOS tasks |
| R5F104MJAFA#30 | Same package and pinout, but 192 KB flash and 20 KB RAM; identical peripheral set | Cost-sensitive designs where 256 KB flash is unused and BOM cost reduction is prioritized | Choose for legacy code bases under 192 KB or when optimizing for unit cost without sacrificing I/O or timer resources |
Compared with R5F104MLAFA#30 and R5F104MJAFA#30, the R5F104MKAFA#30 offers optimal balance of flash (256 KB), RAM (24 KB), and peripheral count for mid-complexity industrial firmware-avoiding over-provisioning while retaining headroom for feature updates and safety margins.
Availability
R5F104MKAFA#30 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, and motor drive interfaces requiring stable component supply across extended product lifecycles.
Supply support for R5F104MKAFA#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 targets cost-sensitive, ultra-low-power general-purpose embedded applications-designed to deliver high integration, robust peripheral sets, and long-term supply assurance for industrial control and sensing.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for R5F104MKAFA#30?
The R5F104MKAFA#30 operates at up to 32 MHz with a measured performance of 44 DMIPS. This value is derived from the RL78 CPU core's 3-stage pipeline and optimized instruction set, validated per Renesas' benchmark methodology. The R5F104MKAFA#30 achieves this performance across its full 1.6–5.5 V supply range and -40 to +85°C temperature grade.
Does R5F104MKAFA#30 support LIN bus communication, and which UART channels provide it?
Yes, the R5F104MKAFA#30 supports LIN bus communication on its UART channels. Specifically, UART2 (pins P13/P14) and UART3 (pins P15/P16) are LIN-capable per the RL78/G14 datasheet. The R5F104MKAFA#30 includes dedicated LIN-mode control bits in the serial interface registers to configure break detection, sync field handling, and checksum generation compliant with LIN 2.2A.
What is the data flash endurance and operating voltage range for rewrites on R5F104MKAFA#30?
The R5F104MKAFA#30 provides 8 KB of data flash memory rated for 1,000,000 rewrite cycles (typical) at VDD = 1.8–5.5 V. Rewrites can be performed during normal operation using background operation (BGO), allowing concurrent program execution. The R5F104MKAFA#30's flash library manages wear leveling and error correction transparently within these specifications.
How many analog input channels does the 10-bit ADC in R5F104MKAFA#30 support, and what reference options are available?
The R5F104MKAFA#30 integrates a 10-bit successive-approximation ADC with up to 20 analog input channels (ANI0–ANI19). Reference voltage options include external AVREFP/AVREFM pins, internal 1.45 V bandgap reference, and selectable VDD-based reference. The R5F104MKAFA#30 also includes an on-chip temperature sensor accessible via ANI18/ANI19.
Is R5F104MKAFA#30 pin-compatible with other RL78/G14 variants in the same 80-pin LQFP package?
Yes, the R5F104MKAFA#30 shares identical pinout and electrical characteristics with all other RL78/G14 80-pin LQFP variants-including R5F104MLAFA#30, R5F104MJAFA#30, and R5F104MHAFA#30-within the same package type (PLQP0080JB-E). The R5F104MKAFA#30 maintains full signal, power, and thermal compatibility, enabling drop-in replacement for flash/RAM scaling without PCB revision.
R5F104MKAFA#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:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K 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:
R5F104MKAFA#30 FAQ
1.How can I place an order for R5F104MKAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104MKAFA#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 R5F104MKAFA#30 reliable?
The price and inventory of R5F104MKAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104MKAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F104MKAFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104MKAFA#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104MKAFA#30?
R5F104MKAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104MKAFA#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 R5F104MKAFA#30?
For technical support, including R5F104MKAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104MKAFA#30 requirements.
6.How does Aetrix verify that R5F104MKAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F104MKAFA#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 R5F104MKAFA#30 meets industry standards.
7.What is the process for return or replacement of R5F104MKAFA#30?
All R5F104MKAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104MKAFA#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 R5F104MKAFA#30 part is unused and in its original packaging.
Return procedure for R5F104MKAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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