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Renesas R5F10NPJDFB#55
- Part No.:
- R5F10NPJDFB#55
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F10NPJDFB#55.pdf
- Description:
- IC MCU 16BIT 256KB FLSH 100LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,523
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Product details
Overview
R5F10NPJDFB#55 from Renesas is a 100-pin LFQFP, 256 KB flash, 16 KB RAM RL78/I1C microcontroller with hardware AES encryption, independent-power-supply RTC, and 24-bit ΔΣ A/D converter - designed for electric AMI power meter applications requiring secure firmware, long-term timekeeping, and high-precision energy measurement under 1.9–5.5 V operation.
For engineers reviewing the R5F10NPJDFB#55 datasheet, R5F10NPJDFB#55 pinout, R5F10NPJDFB#55 application, or R5F10NPJDFB#55 equivalent, this page delivers verified technical context, real-world timing roles, validated alternatives, and supply-chain-ready availability details - all grounded in Renesas R01DS0281EJ0231 Rev.2.31 specification data.
Technical Context
The R5F10NPJDFB#55 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, supporting metrology-grade precision for active/reactive power calculation in smart meters.
Its independent-power-supply RTC operates from VRTC (1.6 V min), enabling calendar functions and alarm generation during main power loss. Hardware AES supports GCM/ECB/CBC modes with 128/192/256-bit keys - confirmed exclusive to R5F10N-series devices per datasheet Note 7 and Table 1-1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 CISC with 3-stage pipeline; enables deterministic real-time response for metering firmware and interrupt-driven event capture. |
| Flash / RAM | 256 KB code flash + 2 KB data flash + 16 KB RAM; sufficient for dual-bank firmware updates and secure boot with flash shield window. |
| ΔΣ A/D Converter | 24-bit resolution, 4-channel; provides direct high-accuracy current/voltage sampling without external sigma-delta modulators. |
| AES Engine | Hardware-accelerated GCM/ECB/CBC with 128/192/256-bit keys; offloads encryption from CPU, critical for DLMS/COSEM AMI communication security. |
| RTC Power Domain | Independent VRTC supply (1.6 V min); maintains calendar, alarm, and clock correction across main power failure - essential for tamper-proof time-stamping. |
| Operating Voltage | 1.9 V to 5.5 V (VBATEN = 1); supports wide-input DC-DC regulation typical in battery-backed meter designs. |
| Package | 100-pin LFQFP (14 × 14 mm, 0.5 mm pitch); compatible with industrial reflow profiles and provides full I/O routing for LCD, UART, IrDA, and sensor interfaces. |
Pinout & Package
100-pin plastic LFQFP (14 × 14 mm, 0.5 mm pitch) with exposed pad not specified; REGC requires 0.47–1 µF capacitor to VSS per datasheet caution.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P07 | TxD0 / TOOLTxD / INTP2 / SEG37 | Primary UART0 transmit for DLMS/COSEM protocol stack; also serves as debug interface and LCD segment driver. |
| P60 | SCLA0 / TI00 / TO00 | I²C master clock for external secure element or metrology ADC; timer channel supports pulse-width modulation for LED indicators. |
| P150 | RTCOUT / RTCIC0 | 1 Hz or 64 Hz RTC output for time-synchronized sampling; RTC input capture enables precise timestamping of power events. |
| P20 / P21 | AVREFP / AVREFM | Differential reference inputs for 10-bit SAR ADC; enable ratiometric voltage measurement of shunt-based current sensing. |
| VRTC | RTC Power Supply | Dedicated low-noise supply pin; must be decoupled separately to maintain RTC accuracy during main power brownouts. |
| COM0–COM7 | LCD Common Outputs | Drive up to 8 common lines for multiplexed LCD display; supports 42-segment output for multi-tariff energy readouts. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware AES Encryption | Offloads GCM authentication and CBC encryption from CPU, reducing firmware latency and power consumption during secure firmware updates. |
| Independent-Power RTC | Maintains calendar, alarm, and clock correction functions during main power loss - critical for regulatory-compliant time-of-use billing. |
| 24-bit ΔΣ A/D Converter | Direct high-resolution sampling of current transformers and voltage dividers eliminates need for external metrology ADCs in Class 0.5S meters. |
| Background Data Flash Rewrite | Enables over-the-air firmware updates while executing application code from program memory - no system interruption required. |
| Low-Power Operating Modes | HALT, STOP, and SNOOZE modes achieve sub-µA current draw; extends battery life in non-volatile backup circuits for >10-year meter deployments. |
Applications
| AMI Smart Electricity Meter | Prepayment Energy Meter |
|---|---|
Use Scenario: Two-way communication with utility backend via PLC or RF mesh, performing tariff switching, load profiling, and remote disconnect/reconnect. IC Role / Device Role / Timing Role: Main application controller executing DLMS/COSEM stack; RTC provides accurate time stamping for consumption logs and firmware update scheduling. Use Value: Hardware AES ensures secure firmware signing and encrypted parameter configuration, meeting IEC 62056-47 and ANSI C12.22 requirements. |
Use Scenario: Local credit validation and balance tracking in pay-as-you-go residential meters, with tamper detection and low-battery alerts. IC Role / Device Role / Timing Role: Real-time transaction processor with secure key storage; independent RTC maintains credit expiry timers even during mains outage. Use Value: On-chip data flash endurance (1M rewrite cycles) guarantees reliable credit ledger storage over 15+ years of field operation. |
| Revenue Protection Meter | Grid Edge Sensor Node |
Use Scenario: Detection of neutral current imbalance, phase reversal, and magnetic tampering in commercial three-phase installations. IC Role / Device Role / Timing Role: Metrology co-processor interfacing with external ΔΣ modulators; 24-bit ADC performs simultaneous voltage/current sampling at 1–10 kHz. Use Value: Integrated 32-bit MAC accelerates harmonic analysis and RMS calculations, enabling real-time anomaly detection without external DSP. |
Use Scenario: Distributed monitoring of transformer temperature, line voltage sag, and harmonic distortion at distribution substations. IC Role / Device Role / Timing Role: Low-power edge node controller collecting sensor data; SNOOZE mode wakes on IrDA or UART event for burst transmission. Use Value: 1.9 V minimum operating voltage allows direct connection to supercapacitor backup, eliminating LDO losses in battery-free deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10NPGDFB#55 | 128 KB flash, 8 KB RAM, same 100-pin LFQFP package and AES/RTC/ΔΣ ADC features. | Lower memory capacity limits support for advanced DLMS profiles or multi-protocol stacks (e.g., M-Bus + PLC). | Select when firmware size remains under 128 KB and cost optimization is prioritized without sacrificing metrology or security features. |
| R5F10NMJDFB#55 | 80-pin LFQFP, 128 KB flash, 8 KB RAM, identical peripheral set except reduced LCD segment count (34 vs. 42) and no UART3/IIC30. | Insufficient I/O for full-feature AMI meters requiring dual communication paths (e.g., PLC + RF) plus LCD and tamper inputs. | Choose for compact single-protocol meters where PCB space constraints outweigh need for full 100-pin I/O expansion. |
Compared with R5F10NPGDFB#55 and R5F10NMJDFB#55, the R5F10NPJDFB#55 provides maximum on-chip resources - 256 KB flash, 16 KB RAM, and full 100-pin I/O - making it the only option among these three capable of hosting complex DLMS/COSEM stacks with secure OTA updates, multi-tariff LCD UI, and dual-band communication firmware simultaneously.
Availability
R5F10NPJDFB#55 is available at Aetrix Electronics and suitable for electric AMI power meters, prepayment energy meters, and revenue protection metering systems requiring stable component supply, long-term lifecycle support, and traceable sourcing for utility-grade certification.
Supply support for R5F10NPJDFB#55 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 targets electric utility metering applications, integrating metrology-grade analog peripherals, secure cryptographic acceleration, and ultra-low-power operation to meet IEC 62053 and ANSI C12 standards.
FAQ
What is the maximum operating frequency of the R5F10NPJDFB#55?
The R5F10NPJDFB#55 supports a maximum CPU clock of 32 MHz via its integrated PLL, as confirmed in Section 1.1 of the R01DS0281EJ0231 datasheet. 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 calculations in the R5F10NPJDFB#55.
Does the R5F10NPJDFB#55 support hardware AES encryption?
Yes, the R5F10NPJDFB#55 includes a dedicated hardware AES circuit supporting GCM, ECB, and CBC cipher modes with 128/192/256-bit key lengths, as explicitly stated in datasheet Note 7 and Table 1-1. This feature is exclusive to R5F10N-series devices and is fully implemented in the R5F10NPJDFB#55.
What is the role of the VRTC pin on the R5F10NPJDFB#55?
The VRTC pin supplies power to the independent real-time clock domain of the R5F10NPJDFB#55, with a minimum operating voltage of 1.6 V. It enables continuous calendar, alarm, and clock correction functionality during main power loss - a mandatory requirement for time-of-use billing compliance in AMI meters using the R5F10NPJDFB#55.
How many channels does the ΔΣ A/D converter have in the R5F10NPJDFB#55?
The R5F10NPJDFB#55 integrates a 24-bit ΔΣ A/D converter with four input channels (ΔΣ ADC0–ADC3), as documented in Section 1.1 and Figure 1-12 of the R01DS0281EJ0231 datasheet. This matches the 100-pin variant's capability and supports simultaneous sampling for Class 0.5S electricity metering accuracy.
Is the R5F10NPJDFB#55 pin-compatible with other RL78/I1C variants?
The R5F10NPJDFB#55 uses a 100-pin LFQFP package and shares pinout compatibility only with other 100-pin RL78/I1C devices such as R5F10NPGDFB#55, as shown in Figure 1-1. It is not pin-compatible with 64-pin or 80-pin variants due to differing pin counts and signal allocations - verified in Sections 1.3.1–1.3.3 of the datasheet.
R5F10NPJDFB#55 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RL78/I1C
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 60
- 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 6x10b, 4x24b Sigma-Delta
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10NPJDFB#55 FAQ
1.How can I place an order for R5F10NPJDFB#55 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10NPJDFB#55 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 R5F10NPJDFB#55 reliable?
The price and inventory of R5F10NPJDFB#55 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10NPJDFB#55 is usually 5 days.
3.What payment methods are accepted for R5F10NPJDFB#55?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10NPJDFB#55 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10NPJDFB#55?
R5F10NPJDFB#55 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10NPJDFB#55 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 R5F10NPJDFB#55?
For technical support, including R5F10NPJDFB#55 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10NPJDFB#55 requirements.
6.How does Aetrix verify that R5F10NPJDFB#55 is sourced from the original manufacturer or authorized distributors?
All R5F10NPJDFB#55 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 R5F10NPJDFB#55 meets industry standards.
7.What is the process for return or replacement of R5F10NPJDFB#55?
All R5F10NPJDFB#55 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10NPJDFB#55, 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 R5F10NPJDFB#55 part is unused and in its original packaging.
Return procedure for R5F10NPJDFB#55:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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