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Renesas R5F104LDGFA#10
- Part No.:
- R5F104LDGFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LDGFA#10.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:952
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Product details
Overview
R5F104LDGFA#10 from Renesas is a 64-pin LFQFP-packaged RL78/G14 16-bit microcontroller with 32 KB flash, 4 KB data flash, 4 KB RAM, 1.6–5.5 V operation, and -40 to +105°C industrial temperature grade (G). It integrates 16-bit TAU timers, 8-channel 10-bit ADC, UART/I²C/CSI interfaces, RTC, and ultra-low-power STOP mode (0.60 μA).
For engineers reviewing the R5F104LDGFA#10 datasheet, R5F104LDGFA#10 pinout, R5F104LDGFA#10 application, or R5F104LDGFA#10 equivalent, key selection considerations include its G-grade thermal rating, LFQFP-64 0.5 mm pitch package, integrated RTC with calendar function, and support for background data flash rewriting (BGO) at full VDD range (1.8–5.5 V).
Technical Context
The R5F104LDGFA#10 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz subsystem clock). It uses on-chip power-on reset (POR) and configurable voltage detector (LVD) with 14 threshold levels.
Peripheral integration includes Event Link Controller (ELC) for hardware-triggered peripheral chaining, Data Transfer Controller (DTC) with block/repeat transfer modes, and simplified SPI (CSI), UART (LIN-capable), and I²C interfaces - all configurable via peripheral I/O redirection registers (PIOR0/1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at up to 32 MHz. |
| Flash Memory | 32 KB code flash (1 KB block size); supports secure erase/write prohibition and boot swapping. |
| Data Flash | 4 KB; 1,000,000 write cycles (TYP.), BGO enabled - allows concurrent program execution during rewrites. |
| RAM | 4 KB on-chip SRAM; used by flash library starting at F3F00H per device variant mapping. |
| ADC | 10-bit resolution, 8-channel input; includes internal 1.45 V reference and temperature sensor for self-calibration. |
| Operating Temp | -40 to +105°C (G-grade); qualified for industrial environments without derating. |
| Supply Range | 1.6–5.5 V; enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains. |
Pinout & Package
Package: 64-pin LFQFP, 10 × 10 mm body, 0.5 mm pitch, exposed pad not present (standard LFQFP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121/X1 | Crystal input | Connects to 32.768 kHz tuning-fork crystal for RTC and low-power subsystem clock. |
| P122/X2/EXCLK | Crystal output / external clock input | Drives crystal; alternatively accepts external clock up to 20 MHz for precise timing source. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; debounced externally recommended for noise immunity. |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 µF ceramic capacitor to VSS for internal LDO stability in all power modes. |
| P30/INTP3/RTC1HZ/SCK00/SCL00/TRJO0 | Multiplexed I/O | Configurable as RTC 1 Hz output, I²C clock, or JTAG trace port - selected via PIOR register settings. |
| P14/RxD2/SI20/SDA20/TRDIOD0/(SCLA0) | Multifunction serial I/O | Supports UART receive, SPI slave input, I²C data, or secondary I²C clock - dynamically assignable. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE mode | Permits CPU halt while peripherals (ADC, UART, RTC) remain active - reduces average system power in polling-based sensing. |
| Background Operation (BGO) | Enables full-speed code execution from flash while rewriting data flash - eliminates interrupt latency during firmware parameter updates. |
| Event Link Controller (ELC) | Hardware links 19–26 event sources (e.g., timer overflow, ADC end-of-conversion) directly to peripherals - removes CPU overhead for trigger management. |
| Peripheral I/O Redirection | Allows remapping of up to 8 peripheral functions (e.g., UART, CSI) to alternate pins via PIOR0/1 registers - increases PCB layout flexibility. |
| On-chip voltage detector (LVD) | 14 programmable trip points (1.6–4.9 V); selectable reset or interrupt output - enables robust brown-out recovery without external supervisor IC. |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
Use Scenario: Battery-powered temperature/humidity node logging data hourly to internal data flash and transmitting via UART to gateway. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, RTC-based scheduling, and low-power state management. Use Value: 0.60 μA STOP mode extends 2xAA battery life beyond 5 years; BGO allows seamless OTA parameter updates without halting measurement. | Use Scenario: Wall-mounted HVAC unit regulating fan speed, valve position, and ambient air quality using analog sensors and relay drivers. IC Role / Device Role / Timing Role: Real-time actuator coordinator with precise 1 ms PWM timing (TAU), LIN-compliant UART for bus communication, and fault-safe LVD monitoring. Use Value: G-grade (-40 to +105°C) ensures reliability in enclosed enclosures; integrated 10-bit ADC eliminates external signal conditioning for thermistor inputs. |
| Programmable Power Supply | Factory Automation I/O Module |
Use Scenario: Bench power supply with adjustable voltage/current limits, digital panel interface, and USB-to-UART host connection. IC Role / Device Role / Timing Role: System manager handling DAC output control, current sense ADC sampling, keypad scanning, and USB bridge protocol translation. Use Value: Integrated 8-bit D/A converter drives reference op-amp directly; 48 MHz max clock enables fast PID loop execution (<10 µs). | Use Scenario: DIN-rail mounted digital I/O module converting 24 V PLC signals to isolated RS-485 Modbus RTU output. IC Role / Device Role / Timing Role: Protocol engine managing Modbus framing, CRC calculation, and GPIO state synchronization with 1 ms jitter tolerance. Use Value: ELC links timer events to UART transmission start - guarantees deterministic response to Modbus poll requests without software ISR latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGFA#10 | Same package and pinout; 128 KB flash, 12 KB RAM, 8 KB data flash - larger memory footprint. | Required for designs needing >32 KB application code or extended data logging buffers. | Select when future firmware expansion or complex protocol stacks (e.g., MQTT over TLS) demand headroom. |
| R5F104LEFA#10 | Same package and pinout; 48 KB flash, 5.5 KB RAM, 4 KB data flash - intermediate memory tier. | Suitable for enhanced feature sets (e.g., dual UART + I²C + ADC logging) without full 128 KB requirement. | Choose for cost-optimized upgrades from R5F104LDGFA#10 where 16 KB additional flash justifies BOM change. |
Compared with R5F104LGFA#10 and R5F104LEFA#10, the R5F104LDGFA#10 provides optimal balance of industrial temperature rating, minimal memory overhead, and proven qualification for long-lifecycle industrial deployments - making it ideal for fixed-function controllers where code size is stable and thermal margin is critical.
Availability
R5F104LDGFA#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and factory automation I/O modules requiring stable component supply across extended product lifecycles.
Supply support for R5F104LDGFA#10 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 applications - delivering high integration (ADC, RTC, multiple serial interfaces) and robust industrial qualification in compact packages.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F104LDGFA#10?
The R5F104LDGFA#10 operates up to 32 MHz with typical active current of 66 μA/MHz at VDD = 3.3 V. At 32 MHz, this equates to ~2.1 mA total active current. Its ultra-low-power STOP mode draws only 0.60 μA (with RTC and LVD active), verified per R01DS0053EJ0370 datasheet Section 1.1.
Does the R5F104LDGFA#10 support in-system programming and secure firmware updates?
Yes, the R5F104LDGFA#10 supports self-programming via on-chip debug interface and flash shield window protection. It enables boot swapping and prohibits block erase/write for security-critical sections. Data flash rewrites occur at full VDD (1.8–5.5 V) with 1,000,000 cycle endurance - confirmed in Section 1.1 "Code Flash Memory" and "Data Flash Memory" of R01DS0053EJ0370.
What are the supported serial communication interfaces on the R5F104LDGFA#10?
The R5F104LDGFA#10 integrates three UART channels (one LIN-capable), four to ten I²C/simplified I²C channels, and three to eight CSI (simplified SPI) channels. Pin multiplexing via PIOR registers allows dynamic assignment - details appear in Section 1.1 "Serial Interfaces" and pin configuration diagrams (Pages 15–16) of R01DS0053EJ0370.
How is the real-time clock (RTC) implemented in the R5F104LDGFA#10, and what accuracy does it achieve?
The R5F104LDGFA#10 includes a dedicated RTC with calendar support (99-year range), alarm, and clock correction. It operates from a 32.768 kHz crystal connected to P121/P122 and maintains ±1.5 ppm accuracy over -40 to +105°C when paired with a standard 20 ppm crystal - specified in Section 1.1 "Timer" and Table 17.1 (RTC Accuracy) of R01DS0053EJ0370.
What is the purpose of the REGC pin on the R5F104LDGFA#10, and how must it be connected?
The REGC pin on the R5F104LDGFA#10 is the bypass terminal for the internal voltage regulator. It requires a 0.47–1 µF ceramic capacitor connected directly to VSS to stabilize the LDO output. Failure to populate this capacitor risks unstable operation in HALT/STOP modes - mandated in Caution notes for all pin configuration diagrams (e.g., Page 15, Section 1.3.6) of R01DS0053EJ0370.
R5F104LDGFA#10 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:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 5.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 12x8/10b; D/A 2x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104LDGFA#10 FAQ
1.How can I place an order for R5F104LDGFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LDGFA#10 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 R5F104LDGFA#10 reliable?
The price and inventory of R5F104LDGFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LDGFA#10 is usually 5 days.
3.What payment methods are accepted for R5F104LDGFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LDGFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LDGFA#10?
R5F104LDGFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LDGFA#10 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 R5F104LDGFA#10?
For technical support, including R5F104LDGFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LDGFA#10 requirements.
6.How does Aetrix verify that R5F104LDGFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F104LDGFA#10 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 R5F104LDGFA#10 meets industry standards.
7.What is the process for return or replacement of R5F104LDGFA#10?
All R5F104LDGFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LDGFA#10, 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 R5F104LDGFA#10 part is unused and in its original packaging.
Return procedure for R5F104LDGFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F104LDGFA#10 Tags
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