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Renesas R5F10NMLDFB#70
- Part No.:
- R5F10NMLDFB#70
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F10NMLDFB#70.pdf
- Description:
- 16BIT MCU RL78/I1C 512K 80LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,151
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Product details
Overview
R5F10NMLDFB#70 from Renesas is an RL78/I1C 16-bit MCU designed for electric AMI power meter applications, featuring 128 KB flash, 8 KB RAM, 2 KB data flash, hardware AES-128/192/256, independent-power-supply RTC, and 24-bit ΔΣ A/D converter with 3 channels. It operates from 1.9 V to 5.5 V across –40°C to +85°C and supports ultra-low-power STOP/HALT/SNOOZE modes.
For engineers reviewing the R5F10NMLDFB#70 datasheet, R5F10NMLDFB#70 pinout, R5F10NMLDFB#70 application, or R5F10NMLDFB#70 equivalent, this device delivers verified low-power operation, secure firmware execution via on-chip AES, precise metrology-grade analog acquisition, and integrated LCD driver support - critical for certified smart meter design and certification workflows.
Technical Context
The R5F10NMLDFB#70 implements the RL78 CISC CPU core with 3-stage pipeline, supporting instruction execution times from 0.04167 µs (24 MHz high-speed on-chip oscillator) to 66.6 µs (15 kHz low-speed oscillator). It integrates a 32-bit MAC unit, 1 MB address space, and peripheral I/O redirection via PIOR0 register for flexible pin assignment.
Its analog subsystem includes three 24-bit ΔΣ ADC channels with dedicated AVRT/AVCM/AREGC pins and four 10-bit SAR ADC inputs, all referenced to internal 1.45 V or external AVREFP/AVREFM. The independent RTC runs from VRTC with calendar, alarm, and correction functions - powered separately from main VDD.
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 | 128 KB code flash, 8 KB RAM (≈7 KB usable with self-programming), 2 KB data flash rated for 1M rewrites |
| Operating Voltage / Temp | 1.9–5.5 V supply; –40°C to +85°C ambient; supports battery backup via VBAT and VRTC |
| ΔΣ ADC | 24-bit resolution, 3-channel ΔΣ A/D converter with dedicated analog reference and regulator circuitry |
| AES Engine | Hardware-accelerated AES in GCM/ECB/CBC modes with 128/192/256-bit key support - exclusive to R5F10N series |
| RTC | Independent-power-supply RTC with calendar (99-year), alarm, clock correction, and 1 Hz/64 Hz RTCOUT output |
| Package | 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade marking (#70 = tray packaging) |
Pinout & Package
80-pin plastic LFQFP (12 × 12 mm, 0.5 mm pitch), with EVDD0/EVSS0 port power separation, dedicated analog ground (AVSS), RTC power (VRTC), and capacitor pins (REGC, CAPL, CAPH) for ΔΣ ADC and LCD regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / EVDD0 | Main / Port Power Supply | Separate digital power domains enable noise-sensitive analog/LCD operation without coupling |
| VRTC / VBAT | RTC & Backup Power | Enables continuous RTC operation during main power loss; VRTC min = 1.6 V |
| ANIP0–ANIP2 / ANIN0–ANIN2 | ΔΣ ADC Input Pairs | Differential inputs for metrology-grade current/voltage sensing; require matched PCB routing |
| AVRT / AVCM / AREGC | ΔΣ ADC Reference | Provides stable reference voltage, common-mode bias, and regulator bypass for 24-bit accuracy |
| COM0–COM7 / SEG0–SEG27, SEG32–SEG37 | LCD Driver Outputs | Supports up to 34-segment, 8-common LCD display with internal boosting and split-capacitor drive |
| P150 / P151 / P152 | RTC Time Capture Inputs | Enable precise time-stamping of external events (e.g., pulse inputs from metering sensors) |
Key Features
| Feature | Design Value |
|---|---|
| Hardware AES Encryption | Offloads cryptographic processing from CPU; enables FIPS 140-2 Level 1 compliance for firmware and data security |
| Independent-Power RTC | Maintains accurate timekeeping during main power failure using VRTC/VBAT - essential for tamper logging and billing cycles |
| 24-bit ΔΣ A/D Converter | Delivers >110 dB SNR for precision energy measurement; supports simultaneous sampling across 3 channels |
| Ultra-Low-Power Modes | HALT mode consumes <0.5 µA; STOP mode <0.25 µA - extends battery life in portable or backup-powered meters |
| Peripheral I/O Redirection | PIOR0 register allows dynamic remapping of UART, CSI, and timer I/O to alternate pins - simplifies PCB layout reuse |
Applications
| Smart Electricity Meter (AMI) | Prepayment Energy Meter |
|---|---|
|
Use Scenario: Bidirectional kWh measurement with tariff switching, remote firmware updates, and tamper detection in residential/commercial AMI deployments. IC Role / Device Role / Timing Role: Primary metrology controller executing ANSI C12.22 and DLMS/COSEM protocols; RTC provides timestamped event logging. Use Value: Hardware AES ensures secure OTA updates and encrypted communication; 24-bit ΔΣ ADC meets IEC 62053-21 Class 0.5S accuracy requirements. |
Use Scenario: Local credit-based energy consumption control with LCD display, keypad interface, and magnetic/tamper event capture. IC Role / Device Role / Timing Role: Integrated system-on-chip managing LCD drive, key scanning (KR0–KR7), buzzer output (PCLBUZ0/PCLBUZ1), and real-time billing logic. Use Value: On-chip LCD controller drives 34-segment display without external drivers; independent RTC maintains billing calendar during power outages. |
| Industrial Power Quality Monitor | Grid Edge Sensor Node |
|
Use Scenario: Continuous monitoring of voltage sag/swell, harmonics, and frequency deviation at distribution transformer points. IC Role / Device Role / Timing Role: High-precision analog front-end controller acquiring synchronized voltage/current waveforms via ΔΣ ADC; uses ELC for trigger-aligned sampling. Use Value: 3-channel ΔΣ ADC with programmable gain and internal reference eliminates need for external signal conditioning ICs. |
Use Scenario: Low-power wireless sensor node collecting metering data for LPWAN backhaul (e.g., NB-IoT, LoRaWAN) with local edge analytics. IC Role / Device Role / Timing Role: Ultra-low-power host MCU managing sleep/wake cycles, sensor data aggregation, and secure packet encryption before RF transmission. Use Value: SNOOZE mode enables periodic wake-up for sensor reads while maintaining <1 µA average current; AES engine secures payload before transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10NMJDFB#70 | 256 KB flash, 16 KB RAM, same 80-pin LFQFP package and peripheral set | Required for larger firmware images (e.g., dual-bank OTA, advanced UI, extended crypto libraries) | Select when >128 KB flash is needed for feature-rich AMI firmware or future-proofing |
| R5F10NMGDFB#70 | 128 KB flash, 8 KB RAM, identical pinout and peripherals - but no hardware AES engine | Suitable for non-secure metering or cost-sensitive designs where software AES suffices | Choose only if AES acceleration is not required; verify software crypto performance meets real-time constraints |
Compared with R5F10NMLDFB#70, R5F10NMJDFB#70 offers double flash capacity for complex protocol stacks, while R5F10NMGDFB#70 removes AES hardware - reducing security assurance but lowering BOM cost where certification isn't mandated.
Availability
R5F10NMLDFB#70 is available at Aetrix Electronics and suitable for smart electricity meter, prepayment energy meter, and industrial power quality monitor applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for utility-grade certification.
Supply support for R5F10NMLDFB#70 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 infrastructure markets.
The RL78/I1C product line targets certified electricity metering applications, integrating metrology-grade analog peripherals, secure boot, hardware cryptography, and ultra-low-power operation to meet IEC 62053 and ANSI C12 standards.
FAQ
What is the maximum operating frequency of the R5F10NMLDFB#70?
The R5F10NMLDFB#70 supports a maximum CPU clock of 32 MHz via its PLL - enabling 0.03125 µs minimum instruction execution time. This frequency is fully compatible with the 24-bit ΔΣ A/D converter, allowing real-time waveform sampling without clock gating or timing conflicts.
Does the R5F10NMLDFB#70 include hardware AES acceleration?
Yes, the R5F10NMLDFB#70 includes a dedicated hardware AES circuit supporting GCM, ECB, and CBC modes with 128-, 192-, and 256-bit keys - a feature exclusive to the R5F10N product family per Renesas documentation. This accelerates secure boot, firmware updates, and DLMS/COSEM encryption.
How many channels does the ΔΣ A/D converter support on the R5F10NMLDFB#70?
The R5F10NMLDFB#70 integrates a 24-bit ΔΣ A/D converter with three fully differential input channels (ANIP0/ANIN0, ANIP1/ANIN1, ANIP2/ANIN2), each with dedicated reference and regulator pins (AVRT, AVCM, AREGC) to maintain >110 dB SNR under industrial EMI conditions.
What RTC capabilities does the R5F10NMLDFB#70 provide?
The R5F10NMLDFB#70 features an independent-power-supply RTC with calendar function (99-year range), alarm interrupt, clock correction, and 1 Hz/64 Hz RTCOUT output. It operates from VRTC (min 1.6 V) and supports RTCIC0–RTCIC2 for precise external event timestamping - critical for tamper detection logs.
Is the R5F10NMLDFB#70 pin-compatible with other RL78/I1C 80-pin variants?
Yes, the R5F10NMLDFB#70 shares identical 80-pin LFQFP mechanical dimensions, pad layout, and pin functions with R5F10NMEDFB#70, R5F10NMGDFB#70, and R5F10NMJDFB#70 - enabling drop-in replacement within the same memory/AES configuration group, subject to firmware validation.
R5F10NMLDFB#70 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/I1C
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, IrDA, LINbus, UART/USART
- Peripherals:
- LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 60
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 32K 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:
R5F10NMLDFB#70 FAQ
1.How can I place an order for R5F10NMLDFB#70 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10NMLDFB#70 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 R5F10NMLDFB#70 reliable?
The price and inventory of R5F10NMLDFB#70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10NMLDFB#70 is usually 5 days.
3.What payment methods are accepted for R5F10NMLDFB#70?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10NMLDFB#70 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10NMLDFB#70?
R5F10NMLDFB#70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10NMLDFB#70 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 R5F10NMLDFB#70?
For technical support, including R5F10NMLDFB#70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10NMLDFB#70 requirements.
6.How does Aetrix verify that R5F10NMLDFB#70 is sourced from the original manufacturer or authorized distributors?
All R5F10NMLDFB#70 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 R5F10NMLDFB#70 meets industry standards.
7.What is the process for return or replacement of R5F10NMLDFB#70?
All R5F10NMLDFB#70 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10NMLDFB#70, 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 R5F10NMLDFB#70 part is unused and in its original packaging.
Return procedure for R5F10NMLDFB#70:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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