Renesas R5F104LHAFB#30
- Part No.:
- R5F104LHAFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LHAFB#30.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,066
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Product details
Overview
R5F104LHAFB#30 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), industrial-grade RL78/G14 16-bit MCU with 128 KB flash, 8 KB data flash, 16 KB RAM, 10-bit ADC (16 channels), and real-time clock - deployed in motor control, sensor hubs, and smart metering where low-power operation (66 μA/MHz) and mixed-signal integration are critical.
For engineers reviewing the R5F104LHAFB#30 datasheet, R5F104LHAFB#30 pinout, R5F104LHAFB#30 application, or R5F104LHAFB#30 equivalent, key selection considerations include its 64-pin LFQFP-0.5mm package, -40°C to +85°C industrial temperature grade (D), integrated UART/SPI/I²C interfaces, and support for background data flash rewriting with 1M-cycle endurance.
Technical Context
The R5F104LHAFB#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), and includes multiply/divide/accumulate instructions with 1 MB address space.
It integrates dual-clock domains: a high-accuracy ±1.0% on-chip oscillator (selectable up to 32 MHz) and a dedicated low-speed oscillator for watchdog and RTC, enabling simultaneous high-performance computation and ultra-low-power background timing at 0.60 μA in STOP mode with RTC+LVD active.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 128 KB code flash with 1 KB block size, security lock, and self-programming capability |
| Data Flash | 8 KB background rewrite-capable memory with 1,000,000 write cycles (TYP.) |
| RAM | 16 KB on-chip SRAM, including dedicated areas for flash library operation |
| ADC | 10-bit resolution A/D converter with 16 analog input channels and internal 1.45 V reference |
| Operating Voltage | 1.6 V to 5.5 V single-supply operation, enabling direct interface with 1.8/2.5/3.3 V peripherals |
| Temperature Range | -40°C to +85°C (industrial grade D), qualified for extended-life embedded applications |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad connected to VSS per design recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Multi-function serial I/O (CSI/SPI, UART, I²C) | Configurable as SCK11/SI11/SDA11/TRDIOD1 through TRDIOA0, enabling flexible peripheral routing via PIOR registers |
| P30–P31 | Timer/Interrupt/Communication I/O | Support TI03/TO03/INTP4/PCLBUZ0 and RTC1HZ/SCK00/SCL00/TRJO0 - critical for time-triggered control and debug |
| P60–P62 | I²C/SSI interface terminals | SCLA0/SDAA0/SSI00 provide hardware-accelerated synchronous serial communication with slave arbitration support |
| P120–P122 | Crystal oscillator & RTC inputs | X1/X2/EXCLK pins enable precise 32.768 kHz crystal operation for calendar-mode RTC with alarm and correction functions |
| REGC | On-chip regulator bypass capacitor terminal | Requires 0.47–1 µF capacitor to VSS to stabilize internal voltage regulator for low-noise analog/RTC operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power modes | HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD), and SNOOZE enable battery-powered operation >10 years in sensor nodes |
| Event Link Controller (ELC) | Links 19–26 peripheral event signals without CPU intervention - reduces latency and firmware overhead in real-time response |
| Data Transfer Controller (DTC) | Hardware DMA supporting normal/repeat/block transfers triggered by interrupts - offloads CPU during ADC-to-memory or UART-to-buffer operations |
| Peripheral I/O redirection | PIOR0/PIOR1 registers allow dynamic remapping of serial/timer/interrupt functions to alternate pins - simplifies PCB layout reuse |
| On-chip debug & security | Fully integrated on-chip debug interface with flash shield window and block erase prohibition - enables secure field updates and IP protection |
Applications
| Motor Control Interface | Smart Energy Metering |
|---|---|
Use Scenario: Brushless DC motor commutation with current sensing and PWM timing in HVAC blowers. IC Role / Device Role / Timing Role: Primary controller executing FOC algorithms, managing 16-channel ADC sampling, and generating synchronized 3-phase PWM via Timer Array Unit (TAU). Use Value: Integrated 10-bit ADC with internal reference and 128 KB flash enable closed-loop control without external signal conditioning or program storage expansion. |
Use Scenario: Residential electricity meter with tamper detection, pulse counting, and RS-485 communication. IC Role / Device Role / Timing Role: System-on-chip handling metrology ADC reads, RTC-based billing intervals, and UART-driven DLMS/COSEM protocol stack. Use Value: 8 KB data flash with 1M-cycle endurance stores tariff tables and consumption logs; STOP-mode RTC ensures accurate timekeeping during mains outage. |
| Industrial Sensor Hub | Home Appliance UI Controller |
Use Scenario: Multi-sensor node aggregating temperature, humidity, and motion data for predictive maintenance gateways. IC Role / Device Role / Timing Role: Central aggregator using I²C/SPI to read sensors, UART to forward data to host MCU, and LVD to monitor supply health. Use Value: 16 KB RAM accommodates multiple sensor buffers and BLE packet prep; HALT mode extends battery life between 10-second wake-ups. |
Use Scenario: Front-panel controller for washing machine with touch keys, buzzer feedback, and display driver interface. IC Role / Device Role / Timing Role: Dedicated UI processor managing key interrupt scanning (KR0–KR5), PCLBUZ0/1 tone generation, and segment LCD drive via SSI00. Use Value: On-chip key interrupt and buzzer output eliminate external components; 64-pin LFQFP provides ample GPIO for keypad matrix and status LEDs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGAFB#30 | 96 KB flash, 12 KB RAM, same 64-pin LFQFP-0.5mm package and peripheral set | Lower memory footprint suits simpler UI or basic sensor polling without complex algorithm storage | Select when application code size remains under 96 KB and cost optimization is prioritized over future firmware headroom |
| R5F104LJAFB#30 | 192 KB flash, 20 KB RAM, identical package and temperature grade | Enables larger protocol stacks (e.g., Matter over Thread) or firmware-over-the-air (FOTA) image staging | Choose when future feature expansion, dual-bank firmware updates, or enhanced data logging require >128 KB flash |
Compared with R5F104LGAFB#30 and R5F104LJAFB#30, the R5F104LHAFB#30 delivers optimal balance of memory resources (128 KB flash/16 KB RAM), industrial temperature rating, and peripheral richness for mid-tier embedded control - avoiding over-provisioning while ensuring headroom for safety-critical calibration data and bootloader extensions.
Availability
R5F104LHAFB#30 is available at Aetrix Electronics and suitable for motor control, smart metering, industrial sensor hubs, and home appliance UI systems requiring stable component supply across multi-year production cycles.
Supply support for R5F104LHAFB#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 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - delivering high integration, robust toolchain support, and long-term availability for industrial and consumer equipment.
FAQ
What is the maximum operating frequency and associated power consumption of the R5F104LHAFB#30?
The R5F104LHAFB#30 operates at up to 32 MHz using its high-accuracy on-chip oscillator (±1.0% over -20°C to +85°C). At this frequency, it consumes 66 μA per MHz under typical conditions, translating to ~2.1 mA total active current - verified in the R01DS0053EJ0370 datasheet Section 1.1.
Does the R5F104LHAFB#30 support in-system programming and secure firmware updates?
Yes, the R5F104LHAFB#30 supports full in-system programming via its on-chip debug interface and includes flash shield window functionality to restrict write access to designated memory regions. It also enables boot swapping and prohibits block erase on protected sectors - all documented in Section 1.1 "Code Flash Memory" of the R01DS0053EJ0370 datasheet.
How many serial communication interfaces does the R5F104LHAFB#30 integrate, and what protocols are supported?
The R5F104LHAFB#30 integrates up to 8 CSI (SPI-compatible) channels, 4 UART/LIN channels, and 10 I²C/simplified I²C channels. Specific channel counts depend on pin configuration; the 64-pin LFQFP variant supports at least 3 UART, 3 CSI, and 4 I²C instances - confirmed in Table 1-1 and Section 1.1 "Serial Interfaces" of R01DS0053EJ0370.
What is the ADC resolution, input channel count, and reference voltage option for the R5F104LHAFB#30?
The R5F104LHAFB#30 features a 10-bit successive-approximation ADC with 16 analog input channels (ANI0–ANI18, excluding reserved pins), selectable internal 1.45 V reference or external AVREFP/AVREFM inputs, and operation across the full 1.6–5.5 V supply range - specified in Section 1.1 "A/D Converter" of R01DS0053EJ0370.
Is the R5F104LHAFB#30 pin-compatible with other RL78/G14 variants in the same 64-pin LFQFP package?
Yes, all RL78/G14 devices in the 64-pin LFQFP-0.5mm package (e.g., R5F104LGAFB#30, R5F104LJAFB#30) share identical pinouts and electrical characteristics. Function allocation (e.g., UART vs. CSI on P10–P15) is consistent across the family - validated in Section 1.3.6 "48-pin products" and Table 1-1 of R01DS0053EJ0370, which confirms uniform pin mapping for FB-suffixed 64-pin variants.
R5F104LHAFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 48
- Program Memory Size:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104LHAFB#30 FAQ
1.How can I place an order for R5F104LHAFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LHAFB#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 R5F104LHAFB#30 reliable?
The price and inventory of R5F104LHAFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LHAFB#30 is usually 5 days.
3.What payment methods are accepted for R5F104LHAFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LHAFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LHAFB#30?
R5F104LHAFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LHAFB#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 R5F104LHAFB#30?
For technical support, including R5F104LHAFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LHAFB#30 requirements.
6.How does Aetrix verify that R5F104LHAFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F104LHAFB#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 R5F104LHAFB#30 meets industry standards.
7.What is the process for return or replacement of R5F104LHAFB#30?
All R5F104LHAFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LHAFB#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 R5F104LHAFB#30 part is unused and in its original packaging.
Return procedure for R5F104LHAFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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