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Renesas R5F10NLEDFB#35
- Part No.:
- R5F10NLEDFB#35
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F10NLEDFB#35.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:562
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Product details
Overview
R5F10NLEDFB#35 from Renesas is a 64-pin RL78/I1C 16-bit microcontroller designed for electric AMI power meter applications. It integrates 64 KB flash, 6 KB RAM, 2 KB data flash, hardware AES encryption, independent-power-supply RTC, and 24-bit ΔΣ A/D converter with 4 channels - all operating from 1.9 V to 5.5 V across –40°C to +85°C.
For engineers reviewing the R5F10NLEDFB#35 datasheet, R5F10NLEDFB#35 pinout, R5F10NLEDFB#35 application, or R5F10NLEDFB#35 equivalent, this MCU 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 secure, battery-backed, high-accuracy energy measurement systems.
Technical Context
The R5F10NLEDFB#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 16-bit multiply, 16-bit MAC, and 32-bit division, with 1 MB address space and four banks of 8-bit general-purpose registers.
Its peripheral set includes UART0/1/2 (LIN-capable), simplified SPI (CSI), I²C interfaces, 8-channel 16-bit timer array, 12-bit interval timer, 4× 8-bit interval timers, independent-power RTC with calendar/alarm/correction, and dual A/D subsystems: 24-bit ΔΣ (4 ch) and 10-bit SAR (4 ch), all with internal reference and temperature sensor.
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 / Data Flash | 64 KB code flash, 6 KB on-chip RAM, 2 KB data flash with 1M rewrite cycles and background operation |
| Operating Voltage | 1.9 V to 5.5 V - enables direct interface with 3.3 V and 5 V metering subsystems without level-shifting |
| AES Engine | Hardware AES supporting GCM/ECB/CBC modes with 128/192/256-bit keys - accelerates secure firmware updates and AMI data encryption |
| ΔΣ A/D Converter | 24-bit resolution, 4-channel, with internal reference (1.45 V) and temperature sensor - meets Class 0.2 accuracy requirements for revenue-grade metering |
| RTC | Independent-power-supply RTC with calendar (99-year), alarm, clock correction, and 1 Hz/64 Hz output - maintains time during main power loss using VRTC/VBAT |
| Package & Temp | 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), industrial grade (–40°C to +85°C) |
Pinout & Package
64-pin plastic LFQFP (10 × 10 mm, 0.5 mm pitch); REGC must be connected to VSS via 0.47–1 µF capacitor per datasheet caution.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P07/SO00/TxD0/TI02/TO02/INTP2/TOOLTxD | Port 0 bit 7 / UART0 TX / Timer I/O / Interrupt / Debug TX | Multi-function pin enabling serial communication, timing capture, and in-circuit tool interface |
| P43/TI00/TO00/PCLBUZ0/RTCOUT | Timer input/output / programmable buzzer / RTC correction clock | Combines timing control, audible feedback, and precise RTC calibration signal output (1 Hz or 64 Hz) |
| VDD/EVDD0 | Main power supply (core & port) | Accepts 1.9–5.5 V; EVDD0 powers I/O ports separately for noise isolation in analog-sensitive metering designs |
| VRTC / VBAT | RTC power supply / backup battery input | Enables continuous RTC operation during main power failure; VRTC min = 1.6 V ensures long battery life |
| ANIP0–ANIP3 / ANIN0–ANIN3 | ΔΣ ADC positive/negative inputs | Dedicated differential analog front-end for high-precision current/voltage sensing in polyphase meters |
| COM0–COM7 / SEG0–SEG20, SEG24–SEG25 | LCD common/segment outputs | Drives up to 42-segment LCD directly - eliminates external driver IC in compact meter displays |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation modes | HALT (0.35 µA), STOP (0.23 µA), SNOOZE (retains RAM/RTC while CPU sleeps) - extends battery life in portable or backup-powered meters |
| On-chip hardware AES | Accelerates AES-GCM encryption/decryption for secure DLMS/COSEM communication without software overhead or latency penalty |
| Independent-power RTC | Runs from VRTC/VBAT independently of VDD; retains calendar, alarm, and correction settings during main power outage |
| 24-bit ΔΣ A/D with internal reference | Provides >100 dB SNR and <±0.005% gain error - meets IEC 62053-21 Class 0.2 accuracy for revenue metering |
| Self-programming with boot swap | Enables safe over-the-air firmware updates: active bank remains operational while new image writes to alternate bank |
| Peripheral I/O redirection (PIOR0) | Allows dynamic remapping of UART, CSI, I²C, and timer functions to alternate pins - simplifies PCB layout and design reuse |
Applications
| Smart Electricity Meter | AMI Endpoint Node |
|---|---|
Use Scenario: Revenue-grade energy measurement in residential/commercial smart meters with remote readout and tariff switching. IC Role / Device Role / Timing Role: Main system controller handling metrology sampling, AES-secured DLMS/COSEM protocol stack, RTC-based billing intervals, and LCD display. Use Value: Integrated ΔΣ ADC + AES + RTC eliminates 3 discrete ICs, reducing BOM cost and board area by >35% versus legacy solutions. |
Use Scenario: Two-way communication node in mesh or RF-based AMI networks, performing encrypted data aggregation and time-synchronized reporting. IC Role / Device Role / Timing Role: Secure host processor managing IrDA/UART modem interface, AES-encrypted payload generation, and precise time-stamping via independent RTC. Use Value: Hardware AES and SNOOZE mode enable sub-100 µA average current during idle periods - extending battery life to >10 years in battery-backed endpoints. |
| Prepayment Energy Meter | Industrial Power Quality Monitor |
Use Scenario: Local credit validation and load control in prepayment meters with tamper detection and real-time balance display. IC Role / Device Role / Timing Role: Real-time controller executing secure token validation, relay drive logic, key-return scanning, and segmented LCD UI rendering. Use Value: On-chip key interrupt (KR0–KR4) and LCD driver support 5-key keypad + 42-segment display without external components - lowering system cost and failure points. |
Use Scenario: Compact DIN-rail mounted device measuring harmonics, THD, voltage sags/swells, and frequency deviation per IEEE 519. IC Role / Device Role / Timing Role: High-accuracy acquisition engine synchronizing 24-bit ΔΣ sampling to line cycle via RTC-triggered interrupts. Use Value: 24-bit ΔΣ ADC with internal reference and temperature compensation achieves ±0.1% full-scale accuracy at 50/60 Hz - meeting Class A PQ monitoring requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10NLGDFB#35 | 128 KB flash, 8 KB RAM - same package, peripherals, and AES/RTC/ΔΣ features | Supports larger firmware (e.g., multi-protocol stacks, extended diagnostics) without changing PCB layout | Select when future firmware growth or additional feature sets (e.g., advanced anti-tamper algorithms) require more code space |
| R5F11TLEDFB#35 | No hardware AES; identical 64 KB flash, 6 KB RAM, ΔΣ ADC, RTC, and package | Suitable for non-secure metering or cost-sensitive applications where DLMS encryption is handled externally | Choose when AES acceleration is unnecessary and BOM cost reduction is prioritized over cryptographic offload |
Compared with R5F10NLEDFB#35, R5F10NLGDFB#35 offers scalable code density for evolving firmware, while R5F11TLEDFB#35 removes AES to reduce unit cost - making the R5F10NLEDFB#35 optimal for secure, production-ready AMI meters requiring balanced performance, security, and footprint.
Availability
R5F10NLEDFB#35 is available at Aetrix Electronics and suitable for smart electricity meter, AMI endpoint node, prepayment energy meter, and industrial power quality monitor applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F10NLEDFB#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 AMI meters - with integrated metrology-grade analog front-ends, security engines, and ultra-low-power operation optimized for battery-backed or energy-harvesting deployments.
FAQ
What is the maximum operating frequency of the R5F10NLEDFB#35?
The R5F10NLEDFB#35 supports a maximum CPU clock of 32 MHz via its integrated PLL. This frequency is achievable with VDD ≥ 2.8 V and enables minimum instruction execution time of 0.03125 µs - sufficient for real-time metrology processing and secure protocol handling in the R5F10NLEDFB#35.
Does the R5F10NLEDFB#35 support in-system programming?
Yes, the R5F10NLEDFB#35 supports full in-system programming via its on-chip debug interface (TOOL0/P40, TOOLRxD/P06, TOOLTxD/P07). It includes self-programming capability with boot swap function and flash shield window protection - allowing secure field firmware updates without removing the R5F10NLEDFB#35 from the board.
How many analog input channels does the R5F10NLEDFB#35 include for metrology use?
The R5F10NLEDFB#35 provides four dedicated 24-bit ΔΣ A/D converter channels (ANIP0–ANIP3 / ANIN0–ANIN3) plus four 10-bit SAR A/D channels (ANI0–ANI3). This dual-ADC architecture allows simultaneous high-precision current/voltage sampling and auxiliary sensor monitoring - a key capability for Class 0.2 revenue metering in the R5F10NLEDFB#35.
What RTC functionality is integrated into the R5F10NLEDFB#35?
The R5F10NLEDFB#35 integrates an independent-power-supply RTC with calendar (99-year range), alarm, clock correction, and 1 Hz/64 Hz output (RTCOUT). It operates from VRTC/VBAT, retaining time and settings during main power loss - essential for accurate billing intervals and time-stamped event logging in the R5F10NLEDFB#35.
Is the R5F10NLEDFB#35 pin-compatible with other RL78/I1C variants?
Yes, the R5F10NLEDFB#35 is pin-compatible with all 64-pin RL78/I1C variants in LFQFP-64 (FB) package, including R5F10NLGDFB#35 and R5F11TLEDFB#35. Identical pin count, pitch, and I/O mapping allow drop-in replacement for memory or feature upgrades - provided PCB layout accommodates identical thermal and decoupling requirements for the R5F10NLEDFB#35.
R5F10NLEDFB#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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 6K 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:
R5F10NLEDFB#35 FAQ
1.How can I place an order for R5F10NLEDFB#35 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10NLEDFB#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 R5F10NLEDFB#35 reliable?
The price and inventory of R5F10NLEDFB#35 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10NLEDFB#35 is usually 5 days.
3.What payment methods are accepted for R5F10NLEDFB#35?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10NLEDFB#35 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10NLEDFB#35?
R5F10NLEDFB#35 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10NLEDFB#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 R5F10NLEDFB#35?
For technical support, including R5F10NLEDFB#35 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10NLEDFB#35 requirements.
6.How does Aetrix verify that R5F10NLEDFB#35 is sourced from the original manufacturer or authorized distributors?
All R5F10NLEDFB#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 R5F10NLEDFB#35 meets industry standards.
7.What is the process for return or replacement of R5F10NLEDFB#35?
All R5F10NLEDFB#35 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10NLEDFB#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 R5F10NLEDFB#35 part is unused and in its original packaging.
Return procedure for R5F10NLEDFB#35:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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