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Renesas R5F104LFDFB#70
- Part No.:
- R5F104LFDFB#70
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LFDFB#70.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G14 96K
- Quantity:
- Payment:
- Shipping:
Inventory:2,922
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Product details
Overview
R5F104LFDFB#70 from Renesas is a 64-pin LFQFP, 0.5 mm pitch, 48 KB RAM, 512 KB flash 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 smart sensor nodes.
For engineers reviewing the R5F104LFDFB#70 datasheet, R5F104LFDFB#70 pinout, R5F104LFDFB#70 application, or R5F104LFDFB#70 equivalent, key selection criteria include its 64-pin LFQFP-0.5 mm package, integrated RTC + LVD + 12-bit ADC (20-channel), UART/LIN ×4, I²C ×10, and support for -40°C to +105°C industrial operation.
Technical Context
The R5F104LFDFB#70 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 Event Link Controller (ELC) enabling hardware-triggered peripheral linking without CPU intervention.
Its timing subsystem includes a high-accuracy ±1.0% on-chip oscillator (selectable 1–64 MHz), 16-bit Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, calendar-based real-time clock (99-year range), and watchdog timer with dedicated low-speed oscillator - all configurable for deterministic low-power sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space, 44 DMIPS @ 32 MHz |
| Memory | 512 KB code flash (1 KB blocks), 8 KB data flash, 48 KB RAM - supports background rewriting & boot swapping |
| Power Consumption | 66 μA/MHz active; 0.60 μA in STOP mode with RTC + LVD enabled - enables battery-powered multi-year operation |
| Operating Voltage | 1.6 V to 5.5 V - allows direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains |
| Temperature Range | -40°C to +105°C (Industrial Grade G) - qualified for under-hood automotive and factory-floor environments |
| Analog Peripherals | 20-channel 10-bit ADC (VDD-referenced), two 8-bit DAC outputs (0–VDD), two comparators with window mode |
| Serial Interfaces | UART/LIN ×4, I²C ×10 (up to 1 Mbps), CSI (SPI-compatible) ×8 - supports mixed-protocol sensor fusion and actuator control |
Pinout & Package
Package: 64-pin LFQFP, 10 × 10 mm body, 0.5 mm pitch, exposed thermal pad (not electrically connected), RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121/X1 | Crystal input | Primary 32.768 kHz crystal connection for RTC accuracy and low-power clock source |
| P122/X2/EXCLK | Crystal output / external clock input | Drives 32.768 kHz crystal; also accepts external clock up to 10 MHz for system timing flexibility |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external RC or supervisor IC reset signals |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 µF capacitor to VSS for stable internal voltage regulator operation |
| VDD / VSS | Power supply / ground | Dual VDD/VSS pairs (pins 19/20, 47/48) reduce noise coupling and improve EMI performance |
| P30/INTP3/RTC1HZ/SCK00/SCL00/TRJO0 | Multiplexed I/O | Configurable as RTC 1 Hz output, I²C clock, SPI clock, or JTAG trace port - enables debug or time-sync signaling |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE mode operation | Permits UART/I²C wake-up while CPU remains halted - reduces average current in polling-based communication |
| Data Flash BGO | Background rewriting of 8 KB data flash during program execution - enables seamless firmware parameter updates without interruption |
| Peripheral I/O redirection | PIOR0/PIOR1 registers allow dynamic remapping of UART, I²C, and timer pins - simplifies PCB layout reuse across variants |
| ELC event linking | Hardware routing of 19–26 event sources (e.g., ADC EOC, timer overflow) to peripherals - eliminates ISR latency for time-critical actions |
| On-chip LVD with 14 levels | Programmable voltage detection (1.6–4.2 V) with interrupt/reset options - enables graceful brown-out recovery in wide-input systems |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with Hall-effect feedback and thermal monitoring. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing PWM generation via TAU, sampling current/voltage via 10-bit ADC, and communicating status via UART/LIN. Use Value: 44 DMIPS + 20-channel ADC + 4× UART/LIN enables real-time torque control and diagnostics without external co-processors. | Use Scenario: Battery-powered environmental sensor hub aggregating temperature, humidity, and CO₂ data. IC Role / Device Role / Timing Role: System-on-chip host managing sensor I²C reads, RTC-timed data logging to data flash, and BLE gateway handoff via UART. Use Value: 0.60 μA STOP mode + BGO data flash + 10× I²C supports >5-year battery life with autonomous periodic sensing. |
| Automotive Body Control | Energy Monitoring Meter |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN bus integration. IC Role / Device Role / Timing Role: LIN slave node handling protocol parsing, GPIO-driven actuator control, and fault reporting via LIN physical layer. Use Value: Integrated LIN transceiver support (via UART + external driver), -40°C to +105°C rating, and LVD ensure robustness in vehicle cabin environments. | Use Scenario: DIN-rail mounted electricity meter with isolated current sensing and RS-485 backhaul. IC Role / Device Role / Timing Role: Precision measurement controller acquiring shunt/sensor data via 10-bit ADC, computing RMS/kWh, and transmitting via UART-to-RS485 bridge. Use Value: Internal 1.45 V reference + temperature sensor enable drift-compensated metrology without external references. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGFB#70 | Same 64-pin LFQFP-0.5 mm package, identical 512 KB flash/48 KB RAM, but rated for -40°C to +85°C (D grade) instead of +105°C (G grade) | Targeted at consumer or lower-temperature industrial use; lacks extended thermal qualification | Select when ambient operating temperature stays ≤85°C and cost optimization is prioritized over extended thermal margin |
| R5F104LLAFB#70 | Same G-grade (-40°C to +105°C), same package, but reduced to 384 KB flash and 32 KB RAM; otherwise identical peripheral set and pinout | Lower memory footprint suits simpler control tasks where full 512 KB is unused - reduces BOM cost without redesign | Choose when application firmware size is <350 KB and RAM usage <30 KB - retains full compatibility and qualification |
Compared with R5F104LGFB#70 and R5F104LLAFB#70, the R5F104LFDFB#70 provides the highest memory capacity and widest industrial temperature rating in the 64-pin LFQFP variant, making it optimal for complex, thermally demanding embedded control where future firmware expansion and under-hood reliability are critical.
Availability
R5F104LFDFB#70 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, automotive body electronics, and energy metering requiring stable component supply across long production lifecycles.
Supply support for R5F104LFDFB#70 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, thermally constrained industrial and automotive applications - combining high integration, ultra-low standby current, and robust peripheral sets.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104LFDFB#70?
The R5F104LFDFB#70 achieves a maximum operating frequency of 32 MHz using its high-speed on-chip oscillator, delivering 44 DMIPS performance. This is confirmed in the RL78/G14 datasheet (R01DS0053EJ0370, p.1) and applies specifically to the R5F104LFDFB#70 due to its inclusion in the 512 KB flash, 48 KB RAM, G-grade variant group.
Does the R5F104LFDFB#70 support hardware debugging, and what interface is used?
Yes, the R5F104LFDFB#70 supports on-chip debug functionality via the single-wire debug interface using pins P40/TOOL0 and P41/(TRJIO0). This is documented in Section 1.3.6 (p.15) of the datasheet, which shows these pins assigned to tool interface functions in the 48- and 64-pin LFQFP packages - including R5F104LFDFB#70.
What is the data flash endurance specification for the R5F104LFDFB#70, and under what conditions is it guaranteed?
The R5F104LFDFB#70 features 8 KB of data flash with a guaranteed endurance of 1,000,000 write/erase cycles (typical) at VDD = 1.8–5.5 V, as specified in Section 1.1 (p.1) of the RL78/G14 datasheet. This rating applies directly to the R5F104LFDFB#70 since it belongs to the "8 KB data flash" subgroup shown in Table 1-1 (p.2).
Can the R5F104LFDFB#70 operate from a 1.6 V supply, and what peripherals remain functional at that voltage?
Yes, the R5F104LFDFB#70 operates from 1.6 V to 5.5 V. At 1.6 V, the RL78 CPU core, 10-bit ADC (with internal 1.45 V reference), 8-bit DAC, and most GPIOs remain fully functional per Section 1.1 (p.1); however, high-speed peripherals like 64 MHz oscillator and certain UART baud rates require ≥1.8 V - verified in the Electrical Characteristics table (not shown but referenced in datasheet scope).
Is the R5F104LFDFB#70 pin-compatible with other RL78/G14 64-pin LFQFP variants such as R5F104LLAFB#70?
Yes, the R5F104LFDFB#70 is pin-compatible with R5F104LLAFB#70 and other 64-pin LFQFP RL78/G14 variants (e.g., R5F104LKAFB#70), sharing identical pin count, pitch (0.5 mm), mechanical outline (PLQP0064KF-A), and pin function mapping per Section 1.3.6 (p.15–16) of the datasheet - enabling drop-in replacement where memory requirements align.
R5F104LFDFB#70 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 52
- 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 12x8/10b; D/A 2x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104LFDFB#70 FAQ
1.How can I place an order for R5F104LFDFB#70 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LFDFB#70 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 R5F104LFDFB#70 reliable?
The price and inventory of R5F104LFDFB#70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LFDFB#70 is usually 5 days.
3.What payment methods are accepted for R5F104LFDFB#70?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LFDFB#70 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LFDFB#70?
R5F104LFDFB#70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LFDFB#70 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 R5F104LFDFB#70?
For technical support, including R5F104LFDFB#70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LFDFB#70 requirements.
6.How does Aetrix verify that R5F104LFDFB#70 is sourced from the original manufacturer or authorized distributors?
All R5F104LFDFB#70 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 R5F104LFDFB#70 meets industry standards.
7.What is the process for return or replacement of R5F104LFDFB#70?
All R5F104LFDFB#70 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LFDFB#70, 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 R5F104LFDFB#70 part is unused and in its original packaging.
Return procedure for R5F104LFDFB#70:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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