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Renesas R5F10NMJDFB#10
- Part No.:
- R5F10NMJDFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F10NMJDFB#10.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,638
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Product details
Overview
R5F10NMJDFB#10 from Renesas is an RL78/I1C 80-pin ultra-low-power 16-bit MCU with 256 KB flash, 16 KB RAM, hardware AES-128/192/256, independent-power-supply RTC, and 24-bit ΔΣ A/D converter - designed specifically for electric AMI power meter applications requiring secure metering, long battery life, and high-precision energy measurement.
For engineers reviewing the R5F10NMJDFB#10 datasheet, R5F10NMJDFB#10 pinout, R5F10NMJDFB#10 application, or R5F10NMJDFB#10 equivalent, this page delivers verified technical context, real-world use cases, validated alternatives, and supply-chain-ready availability details - all grounded in Renesas' official R01DS0281EJ0231 Rev.2.31 documentation.
Technical Context
The R5F10NMJDFB#10 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable minimum instruction execution time (0.03125 µs @ 32 MHz PLL clock). It integrates a dedicated 24-bit ΔΣ A/D converter with four channels and internal reference voltage (1.45 V), plus a separate 10-bit SAR A/D converter with six channels - both operating across 1.9–5.5 V supply range.
Its power architecture includes HALT, STOP, and SNOOZE low-power modes, on-chip POR/LVD/RTCPOR circuits, and dual-voltage domains (VDD/EVDD0, VRTC, VBAT) enabling independent RTC operation during main power loss. The AES engine supports GCM/ECB/CBC cipher modes and is confirmed active only in R5F10N-series parts per datasheet Note 7.
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), 16 KB on-chip RAM (≈15 KB usable with self-programming) |
| ADC | 24-bit ΔΣ A/D converter (4 ch), 10-bit SAR A/D converter (6 ch), 1.45 V internal reference |
| Power Range | 1.9 V to 5.5 V operation; -40°C to +85°C industrial temperature grade |
| Clock Sources | 32 MHz PLL, 24 MHz high-speed on-chip oscillator (±1.0% accuracy), 32.768 kHz subclock, 15 kHz low-speed oscillator |
| Security | Hardware AES engine supporting 128/192/256-bit keys and GCM/ECB/CBC modes |
| RTC | Independent-power-supply RTC with calendar (99 years), alarm, correction function, and 1 Hz/64 Hz output |
Pinout & Package
80-pin plastic LFQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, tray packaging (Ver.1.0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P07 | SO00/TxD0/TI02/TO02/INTP2/TOOLTxD/SEG37 | Multi-function port supporting UART0 transmit, timer I/O, interrupt input, debug interface, and LCD segment drive |
| P06 | SI00/RxD0/SDA00/TI03/TO03/TOOLRxD/SEG36 | UART0 receive, I²C data, timer I/O, debug interface, and LCD segment - enables shared peripheral routing via PIOR0 |
| P05 | SCK00/SCL00/TI04/TO04/INTP3/SEG35 | CSI/I²C clock, timer I/O, interrupt input, and LCD segment - supports simplified SPI and I²C communication |
| P125 | VL3/INTP1/TI05/TO05/PCLBUZ1 | LCD voltage level control, interrupt source, timer I/O, and programmable buzzer output - critical for LCD bias management |
| P62 | TI02/TO02/(RTCOUT) | Timer I/O with optional RTC correction clock output (1 Hz/64 Hz) - enables precise time-synchronized event triggering |
| P150 | RTCOUT/RTCIC0 | Dedicated RTC output and time-capture input - provides direct access to RTC timing signals without port multiplexing |
Key Features
| Feature | Design Value |
|---|---|
| True Low-Power Platform | Halt/Stop/Snooze modes enable <1 µA RTC-only current draw - essential for battery-backed AMI meters with >10-year lifespan |
| Independent Power Supply RTC | Operates from VRTC (1.6 V min) while main VDD is off - maintains accurate timekeeping during power outages |
| Hardware AES Acceleration | Full GCM/ECB/CBC support with 128/192/256-bit keys - offloads encryption from CPU, reducing firmware latency and power |
| 24-bit ΔΣ A/D Converter | Four-channel high-resolution metrology ADC with internal 1.45 V reference - eliminates external precision reference IC |
| Background Data Flash Rewrite | BGO allows code execution from flash while rewriting 2 KB data flash - enables seamless firmware updates and tariff logging |
| Peripheral I/O Redirection | PIOR0 register enables dynamic remapping of up to 8 peripheral functions to alternate pins - simplifies PCB layout reuse |
Applications
| Smart Electricity Meter (AMI) | Grid Edge Sensor Node |
|---|---|
Use Scenario: Bidirectional energy measurement in residential/commercial smart meters with HAN connectivity and remote firmware updates. IC Role / Device Role / Timing Role: Primary metrology controller handling ΔΣ ADC sampling, AES-secured data packetization, RTC-synchronized billing intervals, and UART/IrDA communication. Use Value: Integrated 24-bit ΔΣ ADC and hardware AES eliminate need for external metrology ASIC and crypto co-processor - reducing BOM cost and board area by ≥30%. |
Use Scenario: Distributed grid monitoring node measuring voltage sag/swell, harmonic distortion, and phase imbalance at distribution transformers. IC Role / Device Role / Timing Role: Real-time signal acquisition engine using 10-bit SAR ADC for fast transient capture and 24-bit ΔΣ ADC for precision RMS calculation, synchronized to GPS-derived time stamps. Use Value: Dual ADC architecture enables simultaneous high-speed and high-accuracy sampling - meeting IEC 61000-4-30 Class A requirements without external ADCs. |
| Prepayment Energy Meter | Industrial Power Quality Analyzer |
Use Scenario: Pay-as-you-go electricity meter with tamper detection, load profiling, and secure token validation via encrypted EEPROM writes. IC Role / Device Role / Timing Role: Secure metering SoC managing AES-encrypted credit validation, RTC-governed tariff switching, and battery-backed data retention during mains failure. Use Value: On-chip AES and independent RTC allow fully autonomous prepayment logic - eliminating dependency on external secure elements or backup supercaps. |
Use Scenario: Portable analyzer capturing 3-phase voltage/current waveforms, computing THD, flicker, and unbalance metrics per IEEE 1459. IC Role / Device Role / Timing Role: High-fidelity acquisition controller using 24-bit ΔΣ ADC with synchronous sampling across 4 analog inputs and 32-bit MAC for real-time harmonic analysis. Use Value: 32-bit multiply-accumulate unit accelerates FFT-based harmonic computation - achieving 50/60 Hz cycle-by-cycle analysis within 10 ms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10NMGDFB#10 | 128 KB flash, 8 KB RAM, same 80-pin LFQFP package and peripheral set - lacks 256 KB flash and full 16 KB RAM headroom | Targeted at mid-tier AMI meters with reduced firmware complexity and smaller data logging buffers | Select when firmware footprint <128 KB and data logging requires ≤8 KB RAM; retains identical pinout and AES/RTC features |
| R5F10NPJDFB#10 | 100-pin LFQFP, 256 KB flash, 16 KB RAM, adds UART3/I²C3/CSI3 and 2 extra ADC channels - larger package and higher pin count | Required for advanced meters needing triple-communication interfaces (PLC + RF + optical) and expanded analog sensing | Choose when additional serial interfaces or ≥6 analog inputs are mandatory; not pin-compatible due to 100-pin footprint |
Compared with R5F10NMGDFB#10, the R5F10NMJDFB#10 provides double flash and RAM capacity for complex firmware and extended data logging, while R5F10NPJDFB#10 trades pin compatibility for expanded I/O and communication flexibility - making R5F10NMJDFB#10 the optimal balance for mainstream 80-pin AMI designs.
Availability
R5F10NMJDFB#10 is available at Aetrix Electronics and suitable for electric AMI power meters, grid-edge sensor nodes, and prepayment energy meters requiring stable component supply, long-term lifecycle support, and traceable sourcing for utility-grade deployments.
Supply support for R5F10NMJDFB#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, and power management solutions for industrial, automotive, and infrastructure markets.
The RL78/I1C product line was engineered specifically for ultra-low-power, high-precision metering applications - integrating metrology-grade ADCs, secure cryptographic acceleration, and independent RTC functionality into a single 80-pin MCU platform.
FAQ
What is the maximum operating frequency of the R5F10NMJDFB#10?
The R5F10NMJDFB#10 supports a maximum CPU clock of 32 MHz via its integrated PLL - confirmed in the R01DS0281EJ0231 datasheet Section 1.1 under "PLL clock". This frequency is achievable with VDD = 2.8–5.5 V and enables minimum instruction execution time of 0.03125 µs, critical for real-time metrology processing in the R5F10NMJDFB#10.
Does the R5F10NMJDFB#10 include hardware AES encryption?
Yes, the R5F10NMJDFB#10 includes a dedicated hardware AES circuit supporting GCM, ECB, and CBC cipher modes with 128/192/256-bit key lengths - explicitly confirmed in datasheet Note 7 and Table 1-1, which lists AES as "Mounted" for all R5F10N-series 80-pin variants including the R5F10NMJDFB#10.
What is the ADC configuration supported by the R5F10NMJDFB#10?
The R5F10NMJDFB#10 integrates two independent ADC subsystems: a 24-bit ΔΣ A/D converter with four channels for high-precision metrology, and a 10-bit SAR A/D converter with six channels for general-purpose sensing - both operating across 1.9–5.5 V, with the ΔΣ ADC featuring an internal 1.45 V reference as specified in Section 1.1 of the R01DS0281EJ0231 datasheet for the R5F10NMJDFB#10.
Is the RTC in the R5F10NMJDFB#10 powered independently?
Yes, the R5F10NMJDFB#10 features an independent power supply RTC that operates from the VRTC pin (minimum 1.6 V), allowing continuous timekeeping even when main VDD is absent - a key requirement for AMI meters during power outages, and explicitly documented in Section 1.1 "Independent power supply RTC" of the R5F10NMJDFB#10 datasheet.
What package type and pin count does the R5F10NMJDFB#10 use?
The R5F10NMJDFB#10 uses an 80-pin plastic LFQFP package (12 × 12 mm, 0.5 mm pitch) with tray packaging (Ver.1.0), as defined in Figure 1-1 and Table 1-1 of the R01DS0281EJ0231 datasheet - matching the "M" (80-pin) and "FB" (LFQFP) coding in the part number itself.
R5F10NMJDFB#10 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#10 FAQ
1.How can I place an order for R5F10NMJDFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10NMJDFB#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 R5F10NMJDFB#10 reliable?
The price and inventory of R5F10NMJDFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10NMJDFB#10 is usually 5 days.
3.What payment methods are accepted for R5F10NMJDFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10NMJDFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10NMJDFB#10?
R5F10NMJDFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10NMJDFB#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 R5F10NMJDFB#10?
For technical support, including R5F10NMJDFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10NMJDFB#10 requirements.
6.How does Aetrix verify that R5F10NMJDFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F10NMJDFB#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 R5F10NMJDFB#10 meets industry standards.
7.What is the process for return or replacement of R5F10NMJDFB#10?
All R5F10NMJDFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10NMJDFB#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 R5F10NMJDFB#10 part is unused and in its original packaging.
Return procedure for R5F10NMJDFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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