Renesas R5F10NLGDFB#30
- Part No.:
- R5F10NLGDFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F10NLGDFB#30.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10NLGDFB#30 from Renesas is a 64-pin RL78/I1C 16-bit microcontroller designed for electric AMI power meter applications. It integrates 128 KB code flash, 2 KB data flash, 8 KB RAM, hardware AES encryption, independent-power-supply RTC, and 24-bit ΔΣ A/D converter with four channels - all operating from 1.9 V to 5.5 V supply.
For engineers reviewing the R5F10NLGDFB#30 datasheet, R5F10NLGDFB#30 pinout, R5F10NLGDFB#30 application, or R5F10NLGDFB#30 equivalent, this device delivers ultra-low-power operation (HALT/STOP/SNOOZE modes), on-chip debug, self-programming with boot swap, and LCD controller support for metering UI - critical for certified utility-grade meter designs.
Technical Context
The R5F10NLGDFB#30 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz PLL) to 66.6 µs (15 kHz low-speed oscillator). Its memory subsystem includes 128 KB code flash (1 KB block size), 2 KB data flash with background operation (BGO), and 8 KB RAM - configured for secure firmware updates and real-time data logging.
Peripherals include dual UART (one LIN-capable), simplified I²C (2–3 channels), CSI (2–3 channels), 8-channel 16-bit timer array, 24-bit ΔΣ ADC (4 ch), 10-bit SAR ADC (4 ch), independent-power RTC with calendar/alarm/correction, and LCD controller driving up to 19 segments and 4 commons - all managed via Event Link Controller (ELC) and Data Transfer Controller (DTC).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline; enables deterministic real-time control in meter firmware. |
| Flash Memory | 128 KB code flash + 2 KB data flash; supports secure block erase prohibition and BGO for concurrent execution/rewrite. |
| RAM | 8 KB on-chip RAM; ~7 KB usable with self-programming enabled per RL78/I1C User's Manual. |
| Supply Voltage | 1.9 V to 5.5 V operation; accommodates battery-backed and wide-range AC/DC meter power supplies. |
| ΔΣ ADC | 24-bit resolution, 4-channel; provides high-precision current/voltage sensing for revenue-grade energy measurement. |
| AES Engine | Hardware GCM/ECB/CBC cipher with 128/192/256-bit keys; enables secure firmware authentication and AMI data encryption. |
| RTC | Independent power supply (VRTC) RTC with 99-year calendar, alarm, and clock correction; maintains time during main power loss. |
| Package | 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch); industrial-grade (-40°C to +85°C) with VBAT backup support. |
Pinout & Package
64-pin plastic LFQFP (10 × 10 mm, 0.5 mm pitch) with exposed pad not specified; REGC requires 0.47–1 µF capacitor to VSS. Pin functions assigned via PIOR0 register for flexibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P07/SO00/TxD0/TI02/TO02/INTP2/TOOLTxD | Port 0 bit 7 / SPI output / UART0 TX / Timer input/output / interrupt / debug TX | Multi-function I/O enabling serial comms, timing capture, and tool interface on single pin. |
| P43/TI00/TO00/PCLBUZ0/RTCOUT | Port 4 bit 3 / Timer input/output / programmable buzzer / RTC correction clock output | Combines timing, audio feedback, and precise 1 Hz/64 Hz RTC synchronization signal. |
| VDD/EVDD0 | Main and port power supply | Dual-domain supply allows isolated I/O voltage scaling for interfacing with 1.8/2.5/3.0 V peripherals. |
| VRTC | RTC power supply | Enables continuous RTC operation from coin-cell or supercap when main VDD is absent. |
| ANIP0–ANIP3 / ANIN0–ANIN3 | ΔΣ ADC positive/negative inputs | Dedicated differential analog inputs optimized for high-resolution metrology front-end design. |
| COM0–COM7 / SEG0–SEG20, SEG24–SEG25 | LCD common/segment outputs | Drives up to 19 segments × 4 commons for numeric display in compact meter form factor. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Enables multi-year battery life in AMI endpoints by reducing active current to µA range during idle periods. |
| Hardware AES with GCM/ECB/CBC | Offloads encryption from CPU, ensuring deterministic latency for secure DLMS/COSEM protocol stack execution. |
| Independent-power RTC with calendar | Maintains accurate billing time stamps across power outages without external RTC IC or crystal. |
| 24-bit ΔΣ A/D converter (4 ch) | Delivers >110 dB SNR for Class 0.2 or better electricity meter accuracy per IEC 62053-21/22. |
| On-chip LCD controller (19 seg × 4 com) | Reduces BOM count and PCB area by eliminating external segment drivers in cost-sensitive meter designs. |
| Self-programming with boot swap | Supports field firmware updates with rollback safety - essential for regulatory-compliant over-the-air upgrades. |
Applications
| Smart Electricity Meter | AMI Endpoint Node |
|---|---|
Use Scenario: Revenue-grade energy measurement in residential/commercial smart meters with DLMS/COSEM compliance. IC Role / Device Role / Timing Role: Primary metrology MCU handling ADC sampling, tariff calculation, secure communication, and RTC-based billing intervals. Use Value: Integrated 24-bit ΔΣ ADC, hardware AES, and independent RTC eliminate need for discrete metrology IC, crypto co-processor, and RTC chip - reducing system cost and footprint. |
Use Scenario: Two-way communication node in automated meter infrastructure, transmitting consumption data via RF or PLC. IC Role / Device Role / Timing Role: Host controller managing UART/LIN/IRDA interfaces, ELC-synchronized packet framing, and low-power wake-up scheduling. Use Value: DTC and ELC enable zero-CPU-overhead data movement between UART buffers and flash/RAM, maximizing battery life in battery-powered endpoints. |
| Prepayment Meter | Energy Monitoring Gateway |
Use Scenario: Local credit validation and load switching in pay-as-you-go electricity meters with tamper detection. IC Role / Device Role / Timing Role: Secure execution environment for cryptographic voucher validation, relay control, and real-time kWh accounting. Use Value: On-chip AES and flash security lock prevent firmware tampering and unauthorized key extraction - meeting utility anti-tamper requirements. |
Use Scenario: Multi-circuit energy aggregation and local analytics at distribution transformer level. IC Role / Device Role / Timing Role: Data concentrator MCU interfacing with multiple metering ICs via SPI/UART and storing historical profiles in data flash. Use Value: 2 KB data flash with 1M rewrite cycles enables reliable 30+ days of 15-minute interval logging without wear leveling overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10NLEDFB#30 | 64 KB code flash, 6 KB RAM, no AES engine; otherwise identical peripheral set and package. | Suitable for cost-sensitive meters without mandatory firmware/data encryption requirements. | Select when AES is not required and flash/RAM budget permits reduced capacity. |
| R5F11TLGDFB#30 | Same 128 KB flash/8 KB RAM, but lacks on-chip AES; shares same pinout and peripheral configuration. | Used where security certification (e.g., DLMS security classes) is not mandated, lowering BOM cost. | Choose for non-secure AMI deployments needing identical timing/peripheral performance without crypto acceleration. |
Compared with R5F10NLGDFB#30, R5F10NLEDFB#30 offers lower memory and no AES - ideal for basic metering - while R5F11TLGDFB#30 matches memory but omits hardware encryption, making it suitable for unsecured legacy protocols or internal monitoring systems.
Availability
R5F10NLGDFB#30 is available at Aetrix Electronics and suitable for smart electricity meter, AMI endpoint node, prepayment meter, and energy monitoring gateway applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for utility-certified designs.
Supply support for R5F10NLGDFB#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, and power solutions for industrial, automotive, and IoT markets.
The RL78/I1C product line targets electric utility applications - specifically AMI meters - with integrated metrology peripherals, ultra-low-power operation, and hardware security features aligned to IEC 62053 and DLMS standards.
FAQ
What is the flash memory configuration of the R5F10NLGDFB#30?
The R5F10NLGDFB#30 integrates 128 KB of code flash memory organized in 1 KB blocks and 2 KB of data flash memory. The code flash supports security features including block erase/write prohibition, while the data flash enables background operation (BGO) for concurrent program execution and data rewriting - both critical for firmware updates and data logging in R5F10NLGDFB#30-based meters.
Does the R5F10NLGDFB#30 support hardware AES encryption?
Yes, the R5F10NLGDFB#30 includes a dedicated on-chip AES circuit supporting GCM, ECB, and CBC cipher modes with 128-, 192-, and 256-bit key lengths. This hardware acceleration offloads encryption tasks from the RL78 CPU core, ensuring deterministic timing for DLMS/COSEM secure communication stacks implemented on the R5F10NLGDFB#30.
What ADC capabilities does the R5F10NLGDFB#30 provide for metrology?
The R5F10NLGDFB#30 features a 24-bit delta-sigma (ΔΣ) A/D converter with four differential input channels (ANIP0–ANIP3/ANIN0–ANIN3), plus a separate 10-bit SAR ADC with four channels. The ΔΣ ADC delivers high-resolution, low-noise sampling essential for Class 0.2 electricity metering per IEC 62053-21, directly supported by the R5F10NLGDFB#30's analog front-end design.
How does the RTC function in the R5F10NLGDFB#30 maintain time during power loss?
The R5F10NLGDFB#30 incorporates an independent-power-supply RTC powered by the VRTC pin, allowing continuous operation from a backup source (e.g., coin cell or supercapacitor) when main VDD is absent. It provides a full 99-year calendar, alarm, and clock correction function - all retained without software intervention, ensuring billing accuracy in R5F10NLGDFB#30-based meters during outages.
What is the package type and pin count of the R5F10NLGDFB#30?
The R5F10NLGDFB#30 is housed in a 64-pin plastic LFQFP package measuring 10 × 10 mm with 0.5 mm pitch. It is rated for industrial temperature range (−40°C to +85°C) and includes VBAT and VRTC pins for battery backup functionality - consistent with the physical and environmental requirements of R5F10NLGDFB#30 deployments in outdoor meter enclosures.
R5F10NLGDFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/I1C
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, IrDA, LINbus, UART/USART
- Peripherals:
- LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 35
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 5.5V
- Data Converters:
- A/D 4x10b, 4x24b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10NLGDFB#30 FAQ
1.How can I place an order for R5F10NLGDFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10NLGDFB#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 R5F10NLGDFB#30 reliable?
The price and inventory of R5F10NLGDFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10NLGDFB#30 is usually 5 days.
3.What payment methods are accepted for R5F10NLGDFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10NLGDFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10NLGDFB#30?
R5F10NLGDFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10NLGDFB#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 R5F10NLGDFB#30?
For technical support, including R5F10NLGDFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10NLGDFB#30 requirements.
6.How does Aetrix verify that R5F10NLGDFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F10NLGDFB#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 R5F10NLGDFB#30 meets industry standards.
7.What is the process for return or replacement of R5F10NLGDFB#30?
All R5F10NLGDFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10NLGDFB#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 R5F10NLGDFB#30 part is unused and in its original packaging.
Return procedure for R5F10NLGDFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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