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Renesas R5F10NLGDFB#35
- Part No.:
- R5F10NLGDFB#35
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F10NLGDFB#35.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:480
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Product details
Overview
R5F10NLGDFB#35 from Renesas is a 64-pin, 128 KB Flash, RL78/I1C 16-bit MCU with independent-power-supply RTC, hardware AES-128/192/256, 24-bit ΔΣ A/D (4 ch), and ultra-low-power operation (1.9–5.5 V) for electric AMI power meter applications. It integrates LCD controller (19 seg/4 com), 35 I/O pins, and dual serial interfaces including UART/LIN and simplified I²C.
For engineers reviewing the R5F10NLGDFB#35 datasheet, R5F10NLGDFB#35 pinout, R5F10NLGDFB#35 application, or R5F10NLGDFB#35 equivalent, this page delivers verified technical context, exact package mapping (LFQFP-64, 10×10 mm, 0.5 mm pitch), real-time clock integration, AES cryptographic capability, and validated alternative options for secure, low-power metering designs.
Technical Context
The R5F10NLGDFB#35 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable minimum instruction time (0.03125 µs @ 32 MHz PLL or 66.6 µs @ 15 kHz low-speed oscillator). It supports self-programming with boot swap and flash shield window functions.
Its peripheral set includes a 24-bit ΔΣ A/D converter with four input channels, independent RTC powered by VRTC, hardware AES engine supporting GCM/ECB/CBC modes, and Event Link Controller (ELC) enabling 22 event sources to trigger peripheral functions without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash / RAM | 128 KB code flash + 2 KB data flash + 8 KB on-chip RAM (7 KB usable with self-programming) |
| Operating Voltage | 1.9 V to 5.5 V - enables direct interface with battery-backed RTC (VRTC ≥ 1.6 V) and industrial sensor rails |
| ΔΣ A/D Converter | 24-bit resolution, 4-channel input with internal reference (1.45 V) and temperature sensor |
| AES Engine | Hardware-accelerated AES-128/192/256 in GCM/ECB/CBC modes - offloads encryption from CPU for secure firmware updates |
| RTC | Independent power supply RTC with calendar (99-year), alarm, correction function, and 1 Hz/64 Hz output (RTCOUT) |
| Low-Power Modes | HALT, STOP, and SNOOZE modes - achieves µA-range current draw during meter sleep cycles |
Pinout & Package
64-pin plastic LFQFP (10 × 10 mm, 0.5 mm pitch); RoHS-compliant, tray packaging (Ver.1.1, #35 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P07/SO00/TxD0/TI02/TO02/INTP2/TOOLTxD | Port 0 bit 7 / SPI output / UART0 TX / Timer I/O / Interrupt / Debug TX | Multi-function pin supporting serial communication, timing capture, and tool interface simultaneously via PIOR0 redirection |
| P43/TI00/TO00/PCLBUZ0/RTCOUT | Timer input/output / programmable buzzer / RTC correction clock output | Enables synchronized buzzer alerts and precise RTC calibration without external circuitry |
| VRTC | RTC power supply input | Dedicated 1.6–5.5 V rail allowing RTC operation during main VDD brownout or shutdown |
| REGC | ΔΣ ADC regulator capacitor connection | Requires 0.47–1 µF capacitor to VSS for stable high-resolution analog conversion |
| ANIP0–ANIP3 / ANIN0–ANIN3 | Differential inputs for 24-bit ΔΣ A/D converter | Supports precision metrology sensing (e.g., current transformers) with noise rejection and 24-bit dynamic range |
Key Features
| Feature | Design Value |
|---|---|
| Independent Power Supply RTC | Operates continuously from VRTC while main system is in STOP mode - essential for tamper-proof time-stamping in AMI meters |
| Hardware AES Accelerator | Offloads GCM encryption/decryption for secure DLMS/COSEM communications - reduces CPU load and latency vs. software-only AES |
| 24-bit ΔΣ A/D Converter | Provides >110 dB SNR for high-accuracy energy measurement across wide dynamic range (e.g., 0.05% accuracy class meters) |
| Background Data Flash Rewrite | Enables firmware updates or tariff table changes via BGO - no interruption to real-time metering or RTC operation |
| ELC Event Linking | Direct peripheral-to-peripheral triggering (e.g., ΔΣ conversion completion → DMA transfer) eliminates interrupt latency and CPU overhead |
| Multi-Voltage I/O | N-ch open-drain I/O with 6 V tolerance and 1.8/2.5/3.3 V logic compatibility - simplifies interfacing with legacy meter peripherals |
Applications
| Smart Electricity Meter (AMI) | Prepayment Energy Meter |
|---|---|
Use Scenario: Two-way communication-enabled residential electricity meter with remote firmware update, tariff switching, and consumption logging. IC Role / Device Role / Timing Role: Main system controller executing DLMS/COSEM stack, managing secure AES-encrypted data transmission, and timestamping events via independent RTC. Use Value: Hardware AES ensures compliance with IEC 62056-47 security requirements; 24-bit ΔΣ A/D enables Class 0.2S metrology accuracy under varying load conditions. |
Use Scenario: Pay-as-you-go meter with local credit validation, LCD display, and tamper detection. IC Role / Device Role / Timing Role: Real-time controller handling keypad input, LCD refresh, buzzer feedback, and secure credit verification using on-chip AES and RTC-based token expiration. Use Value: Independent VRTC maintains accurate time during power outage; integrated LCD driver drives 19-segment display without external bias IC. |
| Grid Edge Sensor Node | Industrial Power Quality Monitor |
Use Scenario: DIN-rail mounted sensor aggregating voltage, current, and harmonic data for distribution transformer monitoring. IC Role / Device Role / Timing Role: Signal acquisition processor performing synchronized sampling via ΔΣ A/D, timestamping waveforms with RTC, and buffering data for LoRaWAN upload. Use Value: SNOOZE mode extends battery life between transmissions; ELC-triggered DMA minimizes CPU wake-ups during continuous sampling. |
Use Scenario: Panel-mounted device measuring THD, flicker, and voltage sags per IEC 61000-4-30 Ed.3. IC Role / Device Role / Timing Role: High-precision acquisition controller using 24-bit ΔΣ A/D with internal reference and temperature compensation, synchronized to GPS-disciplined RTC. Use Value: On-chip 1.45 V reference and AVREFM/AVREFP inputs enable ratiometric measurement stability; 128 KB Flash stores extended waveform buffers and calibration coefficients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10NLEDFB#35 | 64 KB Flash, 6 KB RAM, same 64-pin LFQFP package, identical peripherals except reduced Flash/RAM; no AES | Suitable for cost-sensitive meters without DLMS security requirements or smaller firmware footprints | Select when AES and >64 KB Flash are unnecessary - lower BOM cost with full pin and software compatibility |
| R5F10NMEDFB#35 | 80-pin LFQFP (12×12 mm), 64 KB Flash, 8 KB RAM, adds UART2/IrDA, extra LCD segments (34 seg), but no AES | Better suited for larger displays or multi-interface gateways where physical layout allows bigger package | Choose only if additional I/O, IrDA support, or expanded LCD drive (34 seg) are required - not pin-compatible with R5F10NLGDFB#35 |
Compared with R5F10NLEDFB#35, the R5F10NLGDFB#35 provides 100% more Flash and hardware AES for secure firmware/data - critical for certified AMI deployments; versus R5F10NMEDFB#35, it trades package size and segment count for cryptographic capability and compact footprint in space-constrained meter PCBs.
Availability
R5F10NLGDFB#35 is available at Aetrix Electronics and suitable for smart electricity metering, prepayment energy systems, and grid-edge sensor nodes requiring stable component supply, long-term lifecycle support, and traceable sourcing for utility-grade certification.
Supply support for R5F10NLGDFB#35 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/I1C product line targets electric utility applications - specifically designed for AMI meters with integrated metrology-grade ADC, secure crypto, and ultra-low-power RTC to meet IEC 62056 and ANSI C12 standards.
FAQ
What is the Flash memory capacity of the R5F10NLGDFB#35?
The R5F10NLGDFB#35 features 128 KB of on-chip code flash memory and 2 KB of data flash memory. The code flash supports block erase (1 KB blocks), self-programming with boot swap functionality, and flash shield window protection - enabling secure firmware updates and field reconfiguration without external programming hardware.
Does the R5F10NLGDFB#35 include hardware AES acceleration?
Yes, the R5F10NLGDFB#35 includes a dedicated hardware AES circuit supporting 128-, 192-, and 256-bit key lengths in GCM, ECB, and CBC cipher modes. This accelerates encryption/decryption for DLMS/COSEM secure communications and eliminates CPU overhead associated with software AES implementations.
What is the operating voltage range for the R5F10NLGDFB#35?
The R5F10NLGDFB#35 operates from 1.9 V to 5.5 V on the main VDD supply. Its independent RTC (VRTC) functions down to 1.6 V, and the minimum VDD depends on VBATEN setting: 1.7 V when VBATEN = 0, 1.9 V when VBATEN = 1. This wide range supports battery backup and brownout resilience in utility meter applications.
How many channels does the ΔΣ A/D converter have on the R5F10NLGDFB#35?
The R5F10NLGDFB#35 integrates a 24-bit delta-sigma A/D converter with four differential input channels (ANIP0/ANIN0 through ANIP3/ANIN3). It includes an internal 1.45 V reference voltage and temperature sensor, enabling high-accuracy metrology for Class 0.2S electricity meters without external reference components.
What package type and pin count does the R5F10NLGDFB#35 use?
The R5F10NLGDFB#35 uses a 64-pin plastic LFQFP package (10 × 10 mm, 0.5 mm pitch), designated FB in the part number. It provides 35 total I/O pins, including 3 N-ch open-drain I/Os with 6 V tolerance, and supports LCD drive with up to 19 segment and 4 common outputs.
R5F10NLGDFB#35 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/I1C
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 27
- 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 4x10/24b Sigma-Delta
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10NLGDFB#35 FAQ
1.How can I place an order for R5F10NLGDFB#35 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10NLGDFB#35 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#35 reliable?
The price and inventory of R5F10NLGDFB#35 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10NLGDFB#35 is usually 5 days.
3.What payment methods are accepted for R5F10NLGDFB#35?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10NLGDFB#35 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10NLGDFB#35?
R5F10NLGDFB#35 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10NLGDFB#35 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#35?
For technical support, including R5F10NLGDFB#35 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10NLGDFB#35 requirements.
6.How does Aetrix verify that R5F10NLGDFB#35 is sourced from the original manufacturer or authorized distributors?
All R5F10NLGDFB#35 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#35 meets industry standards.
7.What is the process for return or replacement of R5F10NLGDFB#35?
All R5F10NLGDFB#35 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10NLGDFB#35, 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#35 part is unused and in its original packaging.
Return procedure for R5F10NLGDFB#35:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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