Renesas R5F104LCAFB#30
- Part No.:
- R5F104LCAFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LCAFB#30.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:800
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Product details
Overview
R5F104LCAFB#30 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), 512 KB flash, 48 KB RAM RL78/G14 16-bit MCU with ultra-low power operation (66 μA/MHz active, 0.60 μA RTC+LVD), 1.6–5.5 V supply, and integrated 12-bit RTC, 10-bit ADC (20 ch), and UART/SPI/I²C interfaces - deployed in industrial motor control and sensor node applications.
For engineers reviewing the R5F104LCAFB#30 datasheet, R5F104LCAFB#30 pinout, R5F104LCAFB#30 application, or R5F104LCAFB#30 equivalent, key selection criteria include its 64-pin LFQFP-0.5mm package, industrial-grade −40°C to +105°C operation (G-grade), 512 KB code flash with data flash shield, and hardware event linking via ELC for deterministic peripheral coordination.
Technical Context
The R5F104LCAFB#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), multiply/divide/accumulate instructions, and 1 MB address space. It integrates a Data Transfer Controller (DTC) with chain transfer and an Event Link Controller (ELC) enabling direct peripheral-to-peripheral signal routing without CPU intervention.
Its mixed-signal subsystem includes a 10-bit ADC with internal 1.45 V reference and temperature sensor, dual 8-bit DACs with real-time output, two comparators with window mode, and a 12-bit interval timer plus calendar RTC with alarm and clock correction - all operating under single-supply 1.6–5.5 V conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 44 DMIPS @ 32 MHz |
| Flash / RAM | 512 KB code flash + 8 KB data flash; 48 KB on-chip RAM |
| Supply Range | 1.6 V to 5.5 V - enables direct interface with 1.8/2.5/3.3 V peripherals |
| Power Modes | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE - supports battery-backed RTC/LVD |
| ADC / DAC | 10-bit ADC, 20-channel input, internal 1.45 V ref & temp sensor; dual 8-bit DACs, 0–VDD output |
| Timers | 12× 16-bit timers (TAU/RA/RD/RG), 12-bit interval timer, calendar RTC (99-year), watchdog |
| Serial Interfaces | 3–4 UART/LIN, 3–8 CSI (SPI-compatible), 4–10 I²C/simplified I²C channels |
| Operating Temp | −40°C to +105°C (G-grade industrial qualification) |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, exposed pad not present (unlike HWQFN variants).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P01 | ANI17/TI00/TxD1 & ANI16/TO00/RxD1 | Dual-function pins for analog input (10-bit ADC), timer input/output, and UART channel 1 I/O |
| P10–P15 | SCK11/SI11/SO11 & SCK20/SCL20/TRDIOB0 | Configurable serial interface pins supporting CSI (SPI), I²C, and simplified I²C with peripheral redirection |
| P16–P17 | TI01/TO01/INTP5 & TI02/TO02/TRDIOA0 | Timer I/O with interrupt capability and TRD (Transmit/Receive Data) interface for LIN/UART co-location |
| P30–P31 | INTP3/SCK00/SCL00 & TI03/TO03/INTP4 | Primary I²C master/slave interface (SCL00/SDA00 implied) and dedicated timer I/O with interrupt |
| P60–P61 | SCLA0/SDAA0 | Dedicated I²C bus pins (clock/data) with open-drain drive and internal pull-up support |
| P121–P122 | X1/X2/EXCLK | Crystal oscillator inputs for 32.768 kHz RTC and optional high-speed external clock (up to 20 MHz) |
| RESET, REGC, VDD, VSS | Reset, regulator capacitor, power, ground | Hardware reset with Schmitt-trigger input; REGC requires 0.47–1 µF capacitor to VSS for LDO stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT mode | 66 μA/MHz active current enables >10-year battery life in intermittent-sensing applications |
| Data Flash BGO | Background operation allows full CPU execution during 1M-cycle data flash rewrite at 1.8–5.5 V |
| Event Link Controller (ELC) | Direct hardware linking of 19–26 event sources (e.g., ADC end-of-conversion → DMA trigger) eliminates CPU polling |
| Peripheral I/O redirection | PIOR0/PIOR1 registers enable dynamic remapping of serial/timer functions to alternate pins without PCB change |
| On-chip voltage detector (LVD) | 14-level selectable reset/interrupt threshold ensures robust brown-out protection across wide VDD range |
| Real-time DAC output | 8-bit DACs update synchronously with timer events - critical for closed-loop analog control without software jitter |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Brushless DC motor commutation with current sensing, PWM generation, and thermal monitoring. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing 3-phase PWM outputs, sampling ADC channels at 100 kSPS, and updating DACs for analog feedback. Use Value: Integrated 16-bit timers with dead-time insertion, 10-bit ADC with internal temp sensor, and ELC-driven ADC→PWM synchronization reduce external component count by 30%. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ via analog/digital sensors. IC Role / Device Role / Timing Role: Low-power system orchestrator: wakes on RTC alarm, samples sensors via ADC/DAC, processes data, transmits via UART/I²C, then returns to STOP mode. Use Value: 0.60 μA STOP mode with RTC+LVD active extends 2×AA battery life beyond 5 years; integrated LVD prevents data corruption during voltage sag. |
| Home Appliance UI | Industrial PLC I/O Module |
Use Scenario: Touch-button and LED display interface in washing machine control panel with capacitive touch and buzzer feedback. IC Role / Device Role / Timing Role: Dedicated UI processor handling key scan (KR0–KR5), PCLBUZ0/1 tone generation, LED PWM dimming, and I²C communication with main MCU. Use Value: Use Value: On-chip key interrupt and programmable buzzer controller eliminate external tone generator IC; 64-pin package accommodates 20+ GPIO for matrix keypad expansion. | Use Scenario: DIN-rail mounted digital input module converting 24 V industrial signals to isolated UART/RS-485 output. IC Role / Device Role / Timing Role: Signal conditioner and protocol translator: reads opto-isolated inputs via GPIO, timestamps events using RTC, formats data packets, and drives RS-485 transceiver via UART. Use Value: Hardware RTC timestamping and ELC-triggered UART transmit ensure sub-millisecond event-to-packet latency; 5.5 V tolerant I/O simplifies level-shifting design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGAFB#30 | Same 64-pin LFQFP-0.5mm package; 384 KB flash, 32 KB RAM, 8 KB data flash | Lower memory footprint suits cost-sensitive industrial HMI or simpler control loops | Select when application code size < 384 KB and BOM cost optimization is prioritized over future firmware scalability |
| R5F104LJAFB#30 | Same package; 256 KB flash, 20 KB RAM, 8 KB data flash; identical peripheral set and temp grade | Targeted at mid-tier applications requiring RTC, ADC, and serial connectivity without full 512 KB headroom | Choose for balanced performance/cost where firmware growth is predictable and < 256 KB |
Compared with R5F104LGAFB#30 and R5F104LJAFB#30, the R5F104LCAFB#30 provides maximum on-chip memory headroom (512 KB flash/48 KB RAM) for complex firmware, secure boot, and field-upgradable features - making it optimal for next-generation industrial controllers requiring long-term maintainability and feature expansion.
Availability
R5F104LCAFB#30 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, home appliance UIs, and PLC I/O modules requiring stable component supply across extended product lifecycles.
Supply support for R5F104LCAFB#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, energy-constrained industrial and consumer applications requiring rich analog integration and deterministic real-time response.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F104LCAFB#30?
The R5F104LCAFB#30 operates up to 32 MHz with a typical active current of 66 μA/MHz at VDD = 3.3 V and TA = 25°C. At full speed, this equates to ~2.1 mA total active current. Its ultra-low-power STOP mode draws only 0.60 μA while maintaining RTC and LVD functionality - verified per R01DS0053EJ0370 datasheet Section 1.1.
Does the R5F104LCAFB#30 support hardware debugging and flash programming in-system?
Yes, the R5F104LCAFB#30 includes an on-chip debug function compatible with Renesas E2 emulator and CS+ IDE. It supports self-programming with boot swapping and flash shield window protection, enabling secure firmware updates and field reprogramming without external programmers - confirmed in Section 1.1 "Code Flash Memory" of the datasheet.
What are the key differences between the R5F104LCAFB#30 and R5F104LGAFB#30?
The R5F104LCAFB#30 has 512 KB flash / 48 KB RAM / 8 KB data flash, while the R5F104LGAFB#30 offers 384 KB flash / 32 KB RAM / 8 KB data flash. Both share identical 64-pin LFQFP-0.5mm packaging, G-grade temperature range (−40°C to +105°C), and peripheral sets - making them pin-compatible drop-in upgrades where memory headroom is required.
Can the R5F104LCAFB#30 drive standard 5 V logic interfaces directly?
No - the R5F104LCAFB#30 I/O pins are rated for VDD (1.6–5.5 V) operation but are not 5 V tolerant unless explicitly configured as N-ch open-drain with external pull-up. Its GPIO supports different-potential interfaces (e.g., 1.8/2.5/3.3 V), but direct 5 V signal connection risks damage. Level-shifting is required for legacy 5 V systems - per Section 1.1 "I/O Port".
How many independent UART/LIN channels does the R5F104LCAFB#30 support, and are they hardware-LIN compliant?
The R5F104LCAFB#30 supports four UART channels, all with LIN-bus protocol support including break detection, sync field handling, and checksum generation. Hardware LIN compliance is implemented via dedicated UART peripheral logic - confirmed in Section 1.1 "Serial Interfaces" and functional description of UART0–UART3 in the RL78/G14 hardware manual.
R5F104LCAFB#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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104LCAFB#30 FAQ
1.How can I place an order for R5F104LCAFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LCAFB#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 R5F104LCAFB#30 reliable?
The price and inventory of R5F104LCAFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LCAFB#30 is usually 5 days.
3.What payment methods are accepted for R5F104LCAFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LCAFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LCAFB#30?
R5F104LCAFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LCAFB#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 R5F104LCAFB#30?
For technical support, including R5F104LCAFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LCAFB#30 requirements.
6.How does Aetrix verify that R5F104LCAFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F104LCAFB#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 R5F104LCAFB#30 meets industry standards.
7.What is the process for return or replacement of R5F104LCAFB#30?
All R5F104LCAFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LCAFB#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 R5F104LCAFB#30 part is unused and in its original packaging.
Return procedure for R5F104LCAFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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