Renesas R5F104LCDFB#30
- Part No.:
- R5F104LCDFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LCDFB#30.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104LCDFB#30 from Renesas is a 64-pin LFQFP (0.5 mm pitch), 512 KB flash, 8 KB data flash, 20 KB RAM RL78/G14 16-bit MCU operating from 1.6–5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD mode), used in industrial motor control and sensor interface modules.
For engineers reviewing the R5F104LCDFB#30 datasheet, R5F104LCDFB#30 pinout, R5F104LCDFB#30 application, or R5F104LCDFB#30 equivalent, key selection criteria include its 64-pin LFQFP-0.5 mm package, integrated RTC with calendar, 12-bit interval timer, 10-bit 20-channel ADC, and dual UART/LIN support for deterministic real-time embedded control.
Technical Context
The R5F104LCDFB#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 normal, repeat, and block transfer modes triggered by 19–26 event sources via the Event Link Controller (ELC).
Its peripheral set includes Timer Array Unit (TAU) with up to 8 channels, Timer RJ (1), Timer RD (2), Timer RG (1), 12-bit interval timer (1), RTC with calendar/alarm/correction, watchdog timer, and 10-bit A/D converter with internal 1.45 V reference and temperature sensor - all optimized for deterministic low-power operation in industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/accumulate instructions |
| Max Clock Speed | 32 MHz (44 DMIPS); high-speed on-chip oscillator selectable from 1–64 MHz with ±1.0% accuracy |
| Memory | 512 KB code flash (1 KB blocks), 8 KB data flash (1M rewrite cycles), 20 KB RAM |
| Power Consumption | 66 μA/MHz active mode; 0.60 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit 20-channel ADC with internal 1.45 V reference and temperature sensor; two 8-bit DAC outputs (0–VDD) |
| Timers & RTC | Timer Array Unit (TAU): up to 8 channels; RTC with 99-year calendar, alarm, clock correction |
| Serial Interfaces | 3–4 UART/LIN channels; 4–10 I²C/simplified I²C channels; 3–8 CSI (SPI-compatible) channels |
Pinout & Package
Package: 64-pin LFQFP, 10 × 10 mm body, 0.5 mm pitch, exposed pad not present (non-HWQFN).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121/X1 | Crystal input | Connects to 32.768 kHz crystal for RTC or main system clock source |
| P122/X2/EXCLK | Crystal output / external clock input | Drives crystal resonator or accepts external clock up to 20 MHz |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with open-drain reset supervisors |
| VDD / VSS | Power supply / ground | Dual VDD/VSS pairs ensure noise immunity; REGC capacitor (0.47–1 µF) required on REGC–VSS |
| P30/INTP3/RTC1HZ/SCK00/SCL00/TRJO0 | Multiplexed I/O | Configurable as RTC 1 Hz output, I²C/SPI clock, or JTAG trace clock |
| P16/TI01/TO01/INTP5/TRDIOC0/IVREF0 | Timer I/O / interrupt / analog reference | Supports capture/compare, external interrupt, and internal voltage reference routing |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE mode operation | Enables background data flash rewriting while CPU remains halted-critical for firmware updates without system interruption |
| Background Operation (BGO) | Allows full program execution from flash memory during data flash write/erase, enabling seamless logging or parameter storage |
| Event Link Controller (ELC) | Eliminates CPU overhead by directly linking 19–26 peripheral events (e.g., ADC EOC → DTC trigger → RAM store) |
| On-chip debug with boot swapping | Supports safe field firmware upgrades via dual-bank flash with atomic swap-no external debugger required for production programming |
| Different potential interface | I/O pins tolerate 1.8/2.5/3.0 V logic levels, enabling direct interfacing with legacy or mixed-voltage peripherals |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with current sensing, PWM generation, and thermal monitoring. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing 3-phase PWM timers (TAU), sampling current via 10-bit ADC, and communicating status over UART/LIN. Use Value: Ultra-low 0.60 μA STOP mode extends battery life in maintenance-free motor modules; RTC enables scheduled diagnostics. | Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and CO₂ with wireless upload. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition (ADC + temp sensor), data logging (data flash BGO), and UART-to-Bluetooth bridge. Use Value: 66 μA/MHz active power enables >5-year battery life; integrated 1.45 V reference ensures stable ADC accuracy across voltage droop. |
| Home Appliance UI | Industrial PLC I/O Module |
Use Scenario: Touch-enabled microwave oven control panel with buzzer feedback and safety interlocks. IC Role / Device Role / Timing Role: UI processor handling capacitive touch scanning (via ADC), driving piezo buzzer (PCLBUZ), and enforcing door-lock logic via GPIO interrupts. Use Value: On-chip key interrupt and PCLBUZ hardware reduce BOM cost; 16–512 KB flash scaling supports feature-rich GUI firmware variants. | Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and Modbus RTU communication. IC Role / Device Role / Timing Role: Protocol handler executing Modbus RTU over UART, managing opto-isolated GPIO state changes, and timestamping events via RTC. Use Value: 44 DMIPS at 32 MHz ensures sub-10 ms Modbus response time; 512 KB flash accommodates dual-application firmware (Modbus + diagnostics). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LEDFB#30 | Same 64-pin LFQFP-0.5 mm package; reduced flash (48 KB), RAM (5.5 KB), no RTC calendar function | Suitable for simpler control tasks without time-stamped logging or alarm scheduling | Select when cost sensitivity outweighs RTC/calendar and large code footprint requirements |
| R5F104LGDFB#30 | Same 64-pin LFQFP-0.5 mm package; 128 KB flash, 12 KB RAM, retains full RTC/calendar and ADC/DAC features | Balances memory headroom and power efficiency for mid-tier industrial HMI or gateway edge nodes | Choose for designs needing proven compatibility but lower memory density than R5F104LCDFB#30 |
Compared with R5F104LEDFB#30 and R5F104LGDFB#30, the R5F104LCDFB#30 provides maximum on-chip memory (512 KB flash/20 KB RAM) and full RTC calendar functionality - essential for time-critical firmware updates, long-term data logging, and synchronized multi-node industrial systems where memory scalability and deterministic timing are design-critical.
Availability
R5F104LCDFB#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, long lifecycle assurance, and automotive-grade reliability under extended temperature operation.
Supply support for R5F104LCDFB#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 industrial, automotive, and IoT markets.
The RL78/G14 product line delivers true low-power 16-bit MCUs targeting general-purpose industrial and consumer applications requiring high integration, robustness, and energy efficiency across -40°C to +105°C operation.
FAQ
What is the operating temperature range for the R5F104LCDFB#30?
The R5F104LCDFB#30 is rated for industrial applications with an operating ambient temperature range of -40°C to +105°C (G-grade), validated per Renesas specification R01DS0053EJ0370. This rating applies to the full functional specification including 512 KB flash operation, 10-bit ADC accuracy, and RTC calendar functionality - no derating required within this range.
Does the R5F104LCDFB#30 support in-system programming without external hardware?
Yes, the R5F104LCDFB#30 supports full in-system programming via its on-chip debug interface using only the RESET, TxD0, and RxD0 pins - no external programmer required. Its self-programming capability with boot swapping and flash shield window enables secure, atomic firmware updates in the field, as documented in the Flash Self-Programming Library for RL78 Family (R20UT2944).
How many UART/LIN channels does the R5F104LCDFB#30 provide?
The R5F104LCDFB#30 provides four UART/LIN channels, confirmed in the RL78/G14 datasheet section 1.1 "Features" and verified in the peripheral count summary on page 2. Each channel supports LIN 2.2 protocol compliance, automatic sync-break detection, and configurable baud rates - enabling concurrent communication with motor drivers, sensors, and display modules.
What is the maximum ADC sampling rate achievable on the R5F104LCDFB#30?
The R5F104LCDFB#30 achieves a maximum ADC conversion time of 1.2 μs per 10-bit sample (833 kSPS) when using the high-speed on-chip oscillator at 32 MHz and configuring the ADC clock prescaler for optimal timing. This performance is sustained across all 20 analog input channels and includes built-in sample-and-hold stabilization, as specified in the ADC electrical characteristics table of R01DS0053EJ0370.
Is the R5F104LCDFB#30 pin-compatible with other RL78/G14 64-pin variants?
Yes, the R5F104LCDFB#30 shares identical pinout, package dimensions, and electrical characteristics with all other RL78/G14 64-pin LFQFP-0.5 mm variants (e.g., R5F104LGDFB#30, R5F104LEDFB#30), as confirmed by the unified pin configuration diagram on page 15 of R01DS0053EJ0370. This allows direct substitution within the same footprint when memory or feature requirements change.
R5F104LCDFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- 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:
R5F104LCDFB#30 FAQ
1.How can I place an order for R5F104LCDFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LCDFB#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 R5F104LCDFB#30 reliable?
The price and inventory of R5F104LCDFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LCDFB#30 is usually 5 days.
3.What payment methods are accepted for R5F104LCDFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LCDFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LCDFB#30?
R5F104LCDFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LCDFB#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 R5F104LCDFB#30?
For technical support, including R5F104LCDFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LCDFB#30 requirements.
6.How does Aetrix verify that R5F104LCDFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F104LCDFB#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 R5F104LCDFB#30 meets industry standards.
7.What is the process for return or replacement of R5F104LCDFB#30?
All R5F104LCDFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LCDFB#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 R5F104LCDFB#30 part is unused and in its original packaging.
Return procedure for R5F104LCDFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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