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Renesas R5F10NPLDFB#70
- Part No.:
- R5F10NPLDFB#70
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F10NPLDFB#70.pdf
- Description:
- 16BIT MCU RL78/I1C 512K 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,017
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Product details
Overview
R5F10NPLDFB#70 from Renesas is a 100-pin RL78/I1C 16-bit microcontroller designed for electric AMI power meter applications. It integrates 256 KB flash, 16 KB RAM, 2 KB data flash, hardware AES encryption (128/192/256-bit), independent-power-supply RTC, and a 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 R5F10NPLDFB#70 datasheet, R5F10NPLDFB#70 pinout, R5F10NPLDFB#70 application, or R5F10NPLDFB#70 equivalent, this MCU delivers ultra-low-power operation (HALT/STOP/SNOOZE modes), secure firmware updates via self-programming with boot swap, background data flash rewriting (BGO), and LCD driver support up to 42 segments - critical for tamper-resistant, battery-backed smart metering systems.
Technical Context
The R5F10NPLDFB#70 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). It features dual-clock domains: main system clock (X1/EXCLK, high-speed on-chip oscillator up to 24 MHz ±1.0%), and independent subsystem clock (XT1/EXCLKS, 32.768 kHz) for RTC and clock correction.
Its peripheral set includes 8-channel 16-bit timer array, UART0–UART3 (with LIN and IrDA support), I²C/SPI/CSI interfaces, ELC for event-driven peripheral linking, DTC for efficient memory transfers, and dedicated voltage regulation circuitry (REGC, VRTC, AVRT, AVCM) optimized for precision ΔΣ ADC operation in metrology-grade analog front-ends.
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 | 256 KB code flash (1 KB blocks), 16 KB RAM (~15 KB usable with self-programming), 2 KB data flash (1M rewrite cycles, BGO supported) |
| Operating Voltage / Temp | 1.9 V to 5.5 V supply; –40°C to +85°C industrial temperature range |
| AES Engine | Hardware-accelerated AES-GCM/ECB/CBC with 128/192/256-bit key support - enables secure firmware signing and AMI data encryption without software overhead |
| ΔΣ A/D Converter | 24-bit resolution, 4-channel ΔΣ ADC with internal reference (1.45 V), AVRT/AVCM/AREGC support for high-accuracy current/voltage sensing in revenue-grade meters |
| RTC & Power Management | Independent-power-supply RTC (VRTC pin) with calendar, alarm, correction, and RTCOUT output; HALT/STOP/SNOOZE low-power modes with sub-μA retention current |
| LCD Driver | Supports up to 42 segment × 8 common outputs; configurable voltage boosting, capacitor split, or external resistor division for direct LCD panel drive |
Pinout & Package
Package: 100-pin plastic LFQFP (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade (D suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P02–P07 | Port 0 I/O | 6 general-purpose CMOS I/O pins with N-ch open-drain option; support CSI/SCK10/SCL10/TxD1/RxD1 functions |
| P10–P17 | Port 1 I/O | 8-segment LCD driver outputs (SEG4–SEG11); also support SCL00/SDA00/SI00/SO00 for I²C/CSI |
| P20–P25 | Analog Input Ports | 6-channel 10-bit SAR ADC inputs (ANI0–ANI5); P20/P21 also serve as AVREFP/AVREFM for ΔΣ reference |
| P30–P37 | Port 3 I/O | 8-segment LCD outputs (SEG24–SEG31); include UART2 (RxD2/TxD2), IrDA, and timer I/O (TI07/TO07) |
| P50–P57 | Port 5 I/O | 8-segment LCD outputs (SEG32–SEG39); include UART3 (RxD3/TxD3), I²C30 (SCL30/SDA30), and CSI30 |
| P60–P62 | I²C Interface | SCLA0/SDAA0 (IICA0 master/slave), TI00/TO00 (timer), RTCOUT (1 Hz/64 Hz output) |
| P70–P77 | Port 7 / Key Return | 8-key return inputs (KR0–KR7); also support LCD COM/SEG, timer I/O, and interrupts (INTP0–INTP7) |
| P80–P85 | Port 8 I/O | 6-segment LCD outputs (SEG12–SEG41); support CSI30, UART3, and simplified I²C |
| ANIP0–ANIP3 / ANIN0–ANIN3 | ΔΣ ADC Inputs | Dedicated differential analog inputs for 24-bit ΔΣ converter; require AVRT, AVCM, AREGC for stable metrology performance |
| VDD / EVDD0 / EVDD1 | Power Supplies | VDD (core/analog), EVDD0/EVDD1 (I/O ports); separate supplies enable noise isolation between analog and digital domains |
| VSS / EVSS0 / EVSS1 | GND Connections | VSS (core/analog ground), EVSS0/EVSS1 (I/O port grounds); must be tied together per layout guidelines |
| VRTC / REGC / AVSS | RTC & Analog Grounding | VRTC powers independent RTC domain; REGC connects 0.47–1 µF capacitor to VSS for ΔΣ regulator stability; AVSS is dedicated ΔΣ ground |
Key Features
| Feature | Design Value |
|---|---|
| Hardware AES Encryption | Full GCM/ECB/CBC acceleration with 128/192/256-bit keys - eliminates software crypto latency and ensures FIPS-aligned security for AMI firmware and data payloads |
| Independent-Power-Supply RTC | Operates from VRTC pin during main power loss; retains calendar, alarm, and correction settings with battery backup - essential for time-of-use billing integrity |
| 24-bit ΔΣ A/D Converter | 4-channel, high-resolution metrology ADC with internal 1.45 V reference and temperature sensor - enables Class 0.2 accuracy in polyphase energy measurement |
| Self-Programming with Boot Swap | Secure firmware update capability with atomic swap and flash shield window - prevents corruption during over-the-air (OTA) upgrades in deployed meters |
| Low-Power Operating Modes | HALT mode (sub-μA), STOP mode (0.35 μA typical), SNOOZE mode (fast wake-up with peripheral activity) - extends battery life in non-mains-powered endpoints |
| LCD Controller/Driver | Integrated 42×8 segment driver with programmable bias, voltage boosting, and capacitor-split options - reduces BOM count and PCB area in meter displays |
Applications
| Smart Electricity Meter (AMI) | Revenue-Grade Energy Monitor |
|---|---|
Use Scenario: Two-way communication-enabled residential/commercial electricity meter with remote firmware update, tariff switching, and tamper detection. IC Role / Device Role / Timing Role: Main system controller handling metrology calculations, secure data encryption (AES), RTC-based time-stamping, and LCD display management. Use Value: Integrated 24-bit ΔΣ ADC and hardware AES eliminate external ICs; independent RTC ensures accurate time-of-use billing even during power outage. |
Use Scenario: DIN-rail mounted industrial energy monitor measuring real/reactive power, harmonics, and demand in commercial HVAC or lighting systems. IC Role / Device Role / Timing Role: Primary data acquisition and processing unit interfacing with shunt/CT sensors, executing IEC 61000-4-30 Class A compliant algorithms. Use Value: 16 KB RAM supports complex harmonic analysis buffers; 256 KB flash stores multiple firmware versions and calibration tables for field recalibration. |
| Prepayment Meter with NFC Interface | Grid Edge Sensor Node |
Use Scenario: Pay-as-you-go electricity meter with contactless top-up via NFC reader and local balance display. IC Role / Device Role / Timing Role: Secure host processor managing encrypted NFC transactions, local balance ledger, and LCD UI with keypad scanning (KR0–KR7). Use Value: Hardware AES enables secure session key exchange with NFC readers; integrated buzzer outputs (PCLBUZ0/PCLBUZ1) provide audible transaction feedback. |
Use Scenario: Low-power transformer monitoring node measuring voltage sag/swell, neutral current imbalance, and temperature in distribution substations. IC Role / Device Role / Timing Role: Autonomous edge node performing periodic sampling, event-triggered logging, and LoRaWAN packet assembly using UART2/UART3. Use Value: STOP mode (0.35 μA) enables 10+ year battery life; 100-pin package provides ample GPIO for multi-sensor interfacing and isolated RS-485 communication. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10NMJDFB#70 | 80-pin LFQFP, 256 KB flash, 8 KB RAM, no 100-pin LCD segment expansion (max 34 segments), lacks UART3/I²C30/CSI30 | Suitable for compact single-phase meters with reduced display and interface requirements | Select when board space is constrained and full 100-pin peripheral set is unnecessary |
| R5F10NPGDFB#70 | 100-pin LFQFP, 128 KB flash, 8 KB RAM, identical pinout and peripheral set but lower memory density and no AES engine | Applicable where cost-sensitive designs omit cryptographic requirements and use simpler firmware | Choose for legacy meter platforms requiring same footprint but without hardware security mandates |
Compared with R5F10NPLDFB#70, R5F10NMJDFB#70 trades pin count and LCD capacity for smaller form factor, while R5F10NPGDFB#70 removes AES and halves flash/RAM - making R5F10NPLDFB#70 the only option supporting full-feature, secure, revenue-grade AMI deployment in a single chip.
Availability
R5F10NPLDFB#70 is available at Aetrix Electronics and suitable for smart electricity metering, revenue-grade energy monitoring, prepayment metering, and grid-edge sensor node applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F10NPLDFB#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/I1C product line targets electric utility infrastructure, delivering ultra-low-power, secure, and metrology-optimized MCUs for AMI, smart grid sensors, and energy management systems.
FAQ
What is the maximum operating frequency of the R5F10NPLDFB#70 CPU core?
The R5F10NPLDFB#70 supports a maximum CPU clock of 32 MHz via its integrated PLL. This is achieved with the PLL clock source enabled, allowing minimum instruction execution time of 0.03125 µs. The high-speed on-chip oscillator also supports up to 24 MHz (±1.0% accuracy), and the subsystem clock runs at 32.768 kHz for RTC functions.
Does the R5F10NPLDFB#70 include hardware AES encryption?
Yes, the R5F10NPLDFB#70 includes a dedicated hardware AES engine supporting GCM, ECB, and CBC cipher modes with 128-bit, 192-bit, and 256-bit key lengths. This feature is confirmed in the datasheet's "AES circuit" section and is exclusive to R5F10N-series devices - enabling secure firmware authentication and encrypted AMI data transmission without CPU overhead.
How many segments and commons does the integrated LCD controller support on the R5F10NPLDFB#70?
The R5F10NPLDFB#70 supports up to 42 segment signal outputs and 8 common signal outputs (COM0–COM7). This is explicitly stated in the 100-pin block diagram (Page 12) and functional outline (Page 13), enabling direct drive of large-format LCD displays used in advanced electricity meters without external segment drivers.
What are the low-power modes supported by the R5F10NPLDFB#70, and what is the typical current in STOP mode?
The R5F10NPLDFB#70 supports HALT, STOP, and SNOOZE modes. In STOP mode, typical current consumption is 0.35 µA at VDD = 3.0 V and TA = 25°C, with RTC and key interrupt functionality retained. This enables multi-year battery operation in backup-powered metering applications, as verified in Section 1.1 "Ultra-low power consumption technology" of the datasheet.
Is the R5F10NPLDFB#70 pin-compatible with other RL78/I1C variants like R5F10NMJDFB#70?
No, the R5F10NPLDFB#70 is not pin-compatible with R5F10NMJDFB#70. While both are RL78/I1C family members, R5F10NPLDFB#70 is a 100-pin LFQFP device, whereas R5F10NMJDFB#70 is an 80-pin LFQFP. Their pin counts, physical dimensions, and I/O allocations differ - requiring distinct PCB layouts. Pin compatibility is only valid within same-pin-count variants (e.g., R5F10NPJDFB#70 shares 100-pin mapping).
R5F10NPLDFB#70 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-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:
- 76
- 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 6x10b, 4x24b Sigma-Delta
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10NPLDFB#70 FAQ
1.How can I place an order for R5F10NPLDFB#70 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10NPLDFB#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 R5F10NPLDFB#70 reliable?
The price and inventory of R5F10NPLDFB#70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10NPLDFB#70 is usually 5 days.
3.What payment methods are accepted for R5F10NPLDFB#70?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10NPLDFB#70 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10NPLDFB#70?
R5F10NPLDFB#70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10NPLDFB#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 R5F10NPLDFB#70?
For technical support, including R5F10NPLDFB#70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10NPLDFB#70 requirements.
6.How does Aetrix verify that R5F10NPLDFB#70 is sourced from the original manufacturer or authorized distributors?
All R5F10NPLDFB#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 R5F10NPLDFB#70 meets industry standards.
7.What is the process for return or replacement of R5F10NPLDFB#70?
All R5F10NPLDFB#70 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10NPLDFB#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 R5F10NPLDFB#70 part is unused and in its original packaging.
Return procedure for R5F10NPLDFB#70:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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