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Renesas R5F10NMJDFB#35
- Part No.:
- R5F10NMJDFB#35
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F10NMJDFB#35.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:108
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Product details
Overview
R5F10NMJDFB#35 from Renesas is an RL78/I1C 16-bit microcontroller designed for electric AMI power meter applications, featuring 256 KB flash, 16 KB RAM, hardware AES encryption, independent-power-supply RTC, and 24-bit ΔΣ A/D converter with 4 channels. It operates from 1.9 V to 5.5 V across –40°C to +85°C and supports ultra-low-power HALT/STOP/SNOOZE modes.
For engineers reviewing the R5F10NMJDFB#35 datasheet, R5F10NMJDFB#35 pinout, R5F10NMJDFB#35 application, or R5F10NMJDFB#35 equivalent, key selection criteria include its 80-pin LFQFP package, integrated LCD controller (up to 34 segments), dual UART with IrDA support, and AES-128/192/256 capability - all critical for secure, low-power smart meter firmware development and certification.
Technical Context
The R5F10NMJDFB#35 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting minimum instruction execution at 0.03125 µs (32 MHz PLL) or 66.6 µs (15 kHz low-speed oscillator). Its peripheral set includes a Data Transfer Controller (DTC), Event Link Controller (ELC), and 8-channel 16-bit timer array with flexible input/output capture.
It integrates a dedicated 24-bit ΔΣ A/D converter optimized for metrology-grade current/voltage sensing, alongside a separate 10-bit SAR ADC (4 channels), both operating over the full 1.9–5.5 V supply range. The independent RTC runs from VRTC with battery backup and calendar support up to 99 years.
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 | 256 KB code flash (1 KB block size) and 16 KB on-chip RAM for real-time metering firmware |
| ADC | 24-bit ΔΣ A/D converter (4 ch) + 10-bit SAR A/D converter (4 ch) for high-accuracy energy measurement |
| Clock System | 32 MHz PLL, 24 MHz high-speed on-chip oscillator (±1.0% accuracy), and 32.768 kHz subsystem clock |
| Security | Hardware AES engine supporting GCM/ECB/CBC modes with 128/192/256-bit keys for DLMS/COSEM compliance |
| RTC | Independent-power-supply RTC with calendar (99-year), alarm, correction, and 1 Hz/64 Hz output |
| Package | 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch), industrial temperature grade (–40°C to +85°C) |
Pinout & Package
80-pin plastic LFQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, tray packaging (Ver.1.1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P02–P07 | Port 0 I/O | 6 general-purpose pins with selectable N-ch open-drain, TTL input, or pull-up; support different-potential interface (1.8/2.5/3 V) |
| P10–P17 | Port 1 I/O | 8-bit port with segment driver capability (SEG4–SEG11) and serial interface functions (SCK00/SCL00/SDA00) |
| P70–P77 | Port 7 I/O | 8-key return (KR0–KR7) and LCD segment outputs (SEG16–SEG23); supports up to 34-segment LCD drive |
| P60–P62 | I²C interface | SCLA0/SDAA0 for full I²C communication; TI00/TO00 for timer functions |
| VRTC, VBAT | RTC power domain | Dedicated 1.6 V min RTC supply (VRTC) with battery backup (VBAT) enables calendar retention during main power loss |
| ANIP0–ANIP3 / ANIN0–ANIN3 | ΔΣ ADC inputs | Differential analog inputs for metrology-grade 24-bit ΔΣ A/D conversion with internal reference (1.45 V) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Halt mode current < 0.55 µA, STOP mode < 0.25 µA, enabling multi-year battery life in portable meters |
| Secure firmware execution | Flash shield window and block erase prohibition prevent unauthorized code readout or modification |
| Background data flash rewrite | BGO allows full CPU operation during 2 KB data flash updates - essential for field firmware upgrades without service interruption |
| LCD controller integration | Supports capacitor-split and external-resistor division methods; drives up to 34 segments and 8 commons without external bias circuitry |
| Real-time metrology interface | ΔΣ ADC supports simultaneous sampling of voltage/current channels with built-in digital filtering for Class 0.2/0.5 meter compliance |
Applications
| Smart Electricity Meter (AMI) | Prepayment Energy Meter |
|---|---|
Use Scenario: Bidirectional energy measurement in residential/commercial smart meters communicating via PLC or RF mesh networks. IC Role / Device Role / Timing Role: Primary metrology MCU handling ADC sampling, tariff calculation, AES-encrypted DLMS/COSEM protocol stack, and RTC-synchronized billing cycles. Use Value: Integrated 24-bit ΔΣ ADC and hardware AES eliminate need for external metrology ICs and crypto accelerators - reducing BOM cost and PCB area by >30%. | Use Scenario: Local credit validation and load control in pay-as-you-go meters deployed in emerging markets with unreliable grid infrastructure. IC Role / Device Role / Timing Role: Standalone controller managing keypad input, LCD display, relay switching, tamper detection, and secure token validation using AES-GCM. Use Value: Independent RTC with VRTC/VBAT backup ensures accurate time-based credit expiration even during prolonged outages - critical for revenue protection. |
| Industrial Power Quality Monitor | Grid Edge Sensor Node |
Use Scenario: Compact DIN-rail mounted device measuring harmonics, THD, and voltage sags/swells in commercial substations. IC Role / Device Role / Timing Role: Real-time signal processor capturing synchronized voltage/current waveforms at ≥16 kSPS using ΔΣ ADC oversampling and on-chip 32-bit MAC. Use Value: 32-bit multiply-accumulate unit enables real-time FFT and harmonic analysis without external DSP - cutting latency and system complexity. | Use Scenario: Solar-integrated distribution transformer monitor reporting voltage, temperature, and fault events via NB-IoT/LTE-M. IC Role / Device Role / Timing Role: Low-power host MCU coordinating sensor reads (ΔΣ ADC, temp sensor), secure OTA updates, and cellular modem wake/sleep scheduling. Use Value: SNOOZE mode allows periodic wake-up every 10 seconds to sample sensors and transmit data - extending 3.6 V Li-SOCl₂ battery life beyond 10 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10NMGDFB#35 | 128 KB flash, 8 KB RAM, same 80-pin LFQFP package and peripheral set but no hardware AES | Targeted at non-secure metering or cost-sensitive industrial controls where cryptographic acceleration is not required | Select when AES is unnecessary and lower memory footprint suffices for firmware scope |
| R5F10NPJDFB#35 | 256 KB flash, 16 KB RAM, 100-pin LFQFP package; adds UART3, I²C3, CSI3, and 6-channel 10-bit ADC | Suitable for advanced meters requiring multiple communication interfaces (e.g., PLC + RF + optical port) and higher analog channel count | Choose when additional serial ports or analog inputs justify larger package and layout redesign |
Compared with R5F10NMGDFB#35, the R5F10NMJDFB#35 adds hardware AES for secure firmware and communications, while R5F10NPJDFB#35 expands I/O count and interface options at the cost of increased board area - making R5F10NMJDFB#35 the optimal balance of security, memory, and compact 80-pin integration for certified AMI designs.
Availability
R5F10NMJDFB#35 is available at Aetrix Electronics and suitable for electric AMI power meters, prepayment energy meters, and industrial power quality monitors requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for global utility deployments.
Supply support for R5F10NMJDFB#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and IoT applications.
The RL78/I1C product line is engineered specifically for secure, ultra-low-power electricity metering - integrating metrology-grade ADCs, tamper-resistant flash, and AES cryptography into a single chip to meet IEC 62056 and ANSI C12 standards.
FAQ
What is the maximum operating frequency of the R5F10NMJDFB#35?
The R5F10NMJDFB#35 supports a maximum CPU clock of 32 MHz via its integrated PLL. This frequency is fully operational with the 24-bit ΔΣ A/D converter active, enabling high-speed metrology processing while maintaining precision - a key requirement verified in Renesas' R01DS0281EJ0231 datasheet Section 1.1.
Does the R5F10NMJDFB#35 include hardware AES acceleration?
Yes, the R5F10NMJDFB#35 includes a dedicated hardware AES circuit supporting GCM, ECB, and CBC cipher modes with 128-, 192-, and 256-bit key lengths. This is confirmed in the datasheet's feature list and functional matrix (Page 3, Table "AES Function"), and is exclusive to R5F10N-series parts like the R5F10NMJDFB#35.
How many analog input channels does the R5F10NMJDFB#35 support for metrology use?
The R5F10NMJDFB#35 supports four differential input channels (ANIP0/ANIN0 through ANIP3/ANIN3) for its 24-bit ΔΣ A/D converter, plus four single-ended channels for its 10-bit SAR ADC. This dual-ADC architecture enables simultaneous voltage/current sampling and auxiliary sensor monitoring - directly specified in Section 1.1 and Figure 1-1 of the R01DS0281EJ0231 datasheet.
What LCD segment drive capability does the R5F10NMJDFB#35 provide?
The R5F10NMJDFB#35 drives up to 34 segment signals and 8 common signals using its integrated LCD controller/driver, supporting capacitor-split, external resistor division, and internal voltage boosting methods. This is explicitly stated for 80-pin variants in Section 1.1 and confirmed in the pin configuration diagram (Page 7) and functional table (Page 13).
Is the R5F10NMJDFB#35 qualified for industrial temperature range operation?
Yes, the R5F10NMJDFB#35 is rated for industrial temperature operation from –40°C to +85°C, as indicated by the "D" suffix in its part number per Figure 1-1 (Page 4) and confirmed in Section 1.1 "Operating ambient temperature". This makes it suitable for outdoor meter installations and industrial environments without derating.
R5F10NMJDFB#35 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-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:
- 44
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 5.5V
- Data Converters:
- A/D 4x10b, 3x24b Sigma-Delta
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10NMJDFB#35 FAQ
1.How can I place an order for R5F10NMJDFB#35 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10NMJDFB#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 R5F10NMJDFB#35 reliable?
The price and inventory of R5F10NMJDFB#35 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10NMJDFB#35 is usually 5 days.
3.What payment methods are accepted for R5F10NMJDFB#35?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10NMJDFB#35 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10NMJDFB#35?
R5F10NMJDFB#35 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10NMJDFB#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 R5F10NMJDFB#35?
For technical support, including R5F10NMJDFB#35 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10NMJDFB#35 requirements.
6.How does Aetrix verify that R5F10NMJDFB#35 is sourced from the original manufacturer or authorized distributors?
All R5F10NMJDFB#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 R5F10NMJDFB#35 meets industry standards.
7.What is the process for return or replacement of R5F10NMJDFB#35?
All R5F10NMJDFB#35 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10NMJDFB#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 R5F10NMJDFB#35 part is unused and in its original packaging.
Return procedure for R5F10NMJDFB#35:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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