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Renesas R5F10NMGDFB#50
- Part No.:
- R5F10NMGDFB#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F10NMGDFB#50.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,647
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Product details
Overview
R5F10NMGDFB#50 from Renesas is an 80-pin RL78/I1C 16-bit microcontroller designed for electric AMI power meter applications. It features 128 KB code flash, 2 KB data flash, 8 KB RAM, hardware AES encryption, independent-power-supply RTC, and operates from 1.9 V to 5.5 V across –40°C to +85°C. Its ultra-low-power HALT/STOP/SNOOZE modes and ΔΣ A/D converter support precision metrology in battery-backed utility meters.
For engineers reviewing the R5F10NMGDFB#50 datasheet, R5F10NMGDFB#50 pinout, R5F10NMGDFB#50 application, or R5F10NMGDFB#50 equivalent, key selection criteria include its 80-pin LFQFP package, AES-128/192/256 support, 3-channel 24-bit ΔΣ ADC, RTC with calendar/alarm, and compatibility with I²C, UART (LIN-capable), CSI, and IrDA interfaces in constrained-power metering systems.
Technical Context
The R5F10NMGDFB#50 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.04167 µs min @ 24 MHz high-speed on-chip oscillator). It integrates a 32-bit multiplier/accumulator, BCD correction circuit, and event link controller (ELC) enabling peripheral-to-peripheral signal chaining without CPU intervention.
Its power architecture includes dual voltage domains (VDD/EVDD0), independent RTC power supply (VRTC), on-chip POR/LVD circuits with 13-level detection, and hardware AES engine supporting GCM/ECB/CBC modes - all optimized for secure, long-life, low-maintenance smart meter deployments requiring tamper resistance and time-stamped energy logging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Flash Memory | 128 KB code flash + 2 KB data flash with background operation and 1M rewrite cycles |
| RAM | 8 KB on-chip RAM (≈7 KB usable with self-programming enabled) |
| Operating Voltage | 1.9 V to 5.5 V - supports direct connection to Li-SOCl₂ or alkaline battery backup via VBAT |
| ΔΣ A/D Converter | 24-bit resolution, 3 channels - enables high-accuracy current/voltage sampling for Class 0.2 metering |
| Crypto Engine | Hardware AES with 128/192/256-bit keys - accelerates DLMS/COSEM secure communication |
| RTC Functionality | Independent-power-supply RTC with 99-year calendar, alarm, clock correction, and 1 Hz/64 Hz output |
Pinout & Package
80-pin plastic LFQFP (12 × 12 mm, 0.5 mm pitch), industrial-grade (–40°C to +85°C), embossed tape packaging (#50 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P02–P07 | Port 0 I/O | 6 general-purpose pins with selectable N-ch open-drain, TTL input, pull-up; support IrDA/TxD2/RxD2 |
| P10–P17 | Port 1 I/O | 8-segment LCD driver outputs (SEG4–SEG11) and simplified I²C (SCL00/SDA00) |
| P60/P61 | IICA0 interface | Full I²C master/slave with SCLA0/SDAA0 - used for external secure element or metrology IC communication |
| P70–P77 | Port 7 I/O | 8-key return (KR0–KR7) and segment outputs (SEG16–SEG23) for LCD multiplexing |
| P121/P122 | Crystal oscillator inputs | X1/X2 connections for main system clock (1–20 MHz); enable precise timekeeping and PLL synchronization |
| VRTC/REGC/VBAT | RTC power domain | Independent 1.6 V minimum RTC supply path with regulator capacitor (REGC) filtering for battery-backed timekeeping |
| ANIP0–ANIP2 / ANIN0–ANIN2 | ΔΣ ADC analog inputs | Dedicated differential inputs for high-resolution metrology - isolated from digital noise by separate AVSS/AVRT/AREGC |
| RESET | Active-low reset | Asynchronous reset input with internal POR and RTCPOR - ensures deterministic startup under brownout or battery switchover |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Halt mode current < 0.5 µA; STOP mode < 0.25 µA - extends 10+ year battery life in AMI endpoints |
| Secure firmware execution | Flash shield window and block erase prohibition prevent unauthorized code extraction or modification |
| Self-programming with boot swap | Enables field firmware updates without external programmer; boot swap ensures atomic update rollback on failure |
| Peripheral I/O redirection | PIOR0 register allows dynamic remapping of UART/CSI/I²C functions to alternate pins - simplifies PCB layout reuse |
| Real-time clock with correction | RTC maintains ±2 ppm accuracy over temperature via automatic calibration against 32.768 kHz crystal |
Applications
| Smart Electricity Meter (AMI) | Prepayment Energy Meter |
|---|---|
Use Scenario: Two-way communication-enabled residential/utility meter with remote tariff switching, load profiling, and outage reporting. IC Role / Device Role / Timing Role: Primary metrology controller executing DLMS/COSEM stack, managing ΔΣ ADC sampling, AES-encrypted data transmission, and RTC-synchronized billing intervals. Use Value: Integrated AES and secure boot eliminate need for external crypto co-processor; RTC calendar enables accurate time-of-use billing without host dependency. | Use Scenario: Pay-as-you-go meter with local credit validation, tamper detection, and low-battery alert before disconnection. IC Role / Device Role / Timing Role: Secure transaction processor handling encrypted token validation, EEPROM-based credit storage, and real-time remaining-balance calculation. Use Value: Hardware AES accelerates token decryption; battery-backed RTC ensures credit expiry enforcement continues during mains loss. |
| Grid Edge Sensor Node | Transformer Monitoring Unit |
Use Scenario: Distributed sensor collecting voltage sag/swell, harmonic distortion, and phase imbalance at distribution transformers. IC Role / Device Role / Timing Role: Signal acquisition engine synchronizing 24-bit ΔΣ ADC sampling to grid frequency via ELC-triggered timer capture. Use Value: 3-channel ΔΣ ADC enables simultaneous voltage/current measurement; ELC reduces CPU load by 40% vs. interrupt-driven sampling. | Use Scenario: Oil-immersed transformer with temperature, dissolved gas, and partial discharge monitoring for predictive maintenance. IC Role / Device Role / Timing Role: Multi-sensor fusion hub aggregating analog (thermistor, pressure), digital (I²C gas sensors), and pulse inputs (PD counters). Use Value: 68 I/O pins and 80-pin package accommodate diverse sensor interfaces; independent RTC timestamps all events for root-cause analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10NMJDFB#50 | 256 KB code flash, 16 KB RAM, same 80-pin LFQFP package and peripheral set | Supports larger firmware (e.g., multi-protocol stacks, OTA update partitions) | Select when >128 KB flash required for feature-rich AMI firmware or future-proofing |
| R5F10NMEFB#50 | No hardware AES; 64 KB flash, 6 KB RAM; otherwise identical pinout and peripherals | Suitable for non-secure metering or cost-sensitive legacy deployments | Select only if AES is not mandated by utility security policy and flash/RAM headroom is sufficient |
Compared with R5F10NMGDFB#50, R5F10NMJDFB#50 provides double flash/RAM for complex firmware but shares identical power, timing, and metrology capabilities; R5F10NMEFB#50 removes AES and reduces memory - suitable only where security certification is waived and resource constraints allow.
Availability
R5F10NMGDFB#50 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 assurance, and industrial temperature operation.
Supply support for R5F10NMGDFB#50 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 industrial, automotive, and infrastructure markets.
The RL78/I1C product line targets electric utility metering applications, integrating metrology-grade analog front-ends, secure cryptographic acceleration, and ultra-low-power operation to meet IEC 62056 and ANSI C12 standards.
FAQ
What is the maximum operating frequency of the R5F10NMGDFB#50?
The R5F10NMGDFB#50 supports a maximum CPU clock of 32 MHz using the PLL clock source. This frequency is achievable with VDD ≥ 2.8 V and enables minimum instruction execution time of 0.03125 µs. The high-speed on-chip oscillator also supports up to 24 MHz operation with ±1.0% accuracy across full temperature and voltage range.
Does the R5F10NMGDFB#50 support hardware AES encryption?
Yes, the R5F10NMGDFB#50 includes a dedicated hardware AES engine supporting GCM, ECB, and CBC cipher modes with 128-, 192-, and 256-bit key lengths. This capability is confirmed in the datasheet's "AES Circuit" section and is specific to the R5F10N product family - critical for DLMS/COSEM-compliant secure metering communications.
How many channels does the ΔΣ A/D converter have on the R5F10NMGDFB#50?
The R5F10NMGDFB#50 integrates a 24-bit ΔΣ A/D converter with 3 dedicated channels (ΔΣ ADC0–ADC2), as specified in the "Outline of Functions" table for 80-pin devices. Each channel accepts differential analog inputs (ANIPx/ANINx) and is optimized for high-precision current/voltage sensing in Class 0.2 electricity meters.
What is the RTC capability of the R5F10NMGDFB#50?
The R5F10NMGDFB#50 features an independent-power-supply RTC with calendar function covering 99 years, alarm interrupt, clock correction via 32.768 kHz crystal, and 1 Hz/64 Hz output (RTCOUT). It operates from VRTC ≥ 1.6 V and retains time during main power loss using VBAT - essential for time-stamped energy logging in AMI meters.
Is the R5F10NMGDFB#50 pin-compatible with other RL78/I1C variants?
Yes, the R5F10NMGDFB#50 is pin-compatible with other 80-pin RL78/I1C devices in the same LFQFP-80 package (e.g., R5F10NMEDFB#50, R5F10NMJDFB#50), sharing identical pin configuration, power domains, and peripheral mappings. This allows hardware reuse across memory/AES variants while maintaining layout and signal integrity.
R5F10NMGDFB#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/I1C
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 52
- 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 4x10b, 3x24b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10NMGDFB#50 FAQ
1.How can I place an order for R5F10NMGDFB#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10NMGDFB#50 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 R5F10NMGDFB#50 reliable?
The price and inventory of R5F10NMGDFB#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10NMGDFB#50 is usually 5 days.
3.What payment methods are accepted for R5F10NMGDFB#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10NMGDFB#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10NMGDFB#50?
R5F10NMGDFB#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10NMGDFB#50 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 R5F10NMGDFB#50?
For technical support, including R5F10NMGDFB#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10NMGDFB#50 requirements.
6.How does Aetrix verify that R5F10NMGDFB#50 is sourced from the original manufacturer or authorized distributors?
All R5F10NMGDFB#50 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 R5F10NMGDFB#50 meets industry standards.
7.What is the process for return or replacement of R5F10NMGDFB#50?
All R5F10NMGDFB#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10NMGDFB#50, 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 R5F10NMGDFB#50 part is unused and in its original packaging.
Return procedure for R5F10NMGDFB#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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