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Renesas R5F523E6BDFL#10
- Part No.:
- R5F523E6BDFL#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F523E6BDFL#10.pdf
- Description:
- 32BIT MCU RX23E-B 256K LFQFP48 F
- Quantity:
- Payment:
- Shipping:
Inventory:1,489
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Product details
Overview
R5F523E6BDFL#10 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision analog measurement in industrial sensor nodes and metering systems. It integrates a 24-bit delta-sigma ADC with 125 kSPS max sampling rate, ±5-V analog input range, rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), on-chip excitation current sources (50–1000 µA), and 256-KB flash/32-KB SRAM - all operating at up to 32 MHz within a –40°C to +85°C ambient range.
For engineers reviewing the R5F523E6BDFL#10 datasheet, R5F523E6BDFL#10 pinout, R5F523E6BDFL#10 application, or R5F523E6BDFL#10 equivalent, key selection criteria include its integrated 24-bit DSAD with simultaneous 50/60 Hz rejection, low-drift voltage reference (2.5 V, 8 ppm/°C), CAN interface compliance with ISO11898-1, and support for IEC60730 safety diagnostics.
Technical Context
The R5F523E6BDFL#10 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 64 DMIPS @ 32 MHz, and memory protection unit (MPU) for deterministic real-time control. Its analog subsystem centers on a single 24-bit delta-sigma A/D converter (DSADB) with fourth- and fifth-order sinc digital filters, programmable data rates (3.8 SPS to 125 kSPS), and ±5-V HVAIN input capability.
Timing and system management are handled by dedicated clock domains: ICLK (CPU/system, up to 32 MHz), PCLKC (DSAD, up to 16 MHz), and independent low-speed oscillators for RTC and IWDT. The ELC enables interrupt-free inter-module event chaining - critical for synchronized sensor acquisition and low-power wake-up sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC Harvard architecture with 5-stage pipeline, 64 DMIPS @ 32 MHz |
| Max Operating Frequency | 32 MHz - enables real-time execution of floating-point sensor compensation algorithms |
| Flash / SRAM / Data Flash | 256 KB / 32 KB / 8 KB - supports firmware updates, calibration tables, and secure logging without external memory |
| 24-bit Delta-Sigma ADC | 125 kSPS max sampling rate, ±5-V input range, 24-bit effective resolution @ 3.8 SPS - suitable for strain gauge and RTD readout |
| PGA Gain Range | ×1 to ×128 with rail-to-rail operation - eliminates external signal conditioning for mV-level transducer outputs |
| Excitation Current Sources | Two channels, 50–1000 µA with ±0.2% matching - enables precise 2-/3-/4-wire RTD and bridge sensor biasing |
| Operating Temperature | –40°C to +85°C (D version) - qualified for industrial control cabinet environments |
| Package | 48-pin LFQFP (PLQP0048KB-B), 7 × 7 mm, 0.5 mm pitch - compact footprint for space-constrained metering PCBs |
Pinout & Package
Package: 48-pin LFQFP (PLQP0048KB-B), 7 × 7 mm body, 0.5 mm pitch, exposed pad for thermal dissipation. Compatible with standard reflow profiles and automated optical inspection.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual 1.8–5.5 V supply domain; AVCC0 must be 4.5–5.5 V for full S12AD performance |
| HVAIN0–HVAIN3 | Analog input (high-voltage) | ±5-V tolerant differential inputs - directly interface 0–5 V or ±2.5 V sensor outputs without level-shifting |
| IEXC0 / IEXC1 | Excitation current output | Programmable 50–1000 µA sourcing - drives RTD or load cells with matched drift (±0.2%, 5 ppm/°C) |
| DSAD_VREFH / DSAD_VREFL | Delta-sigma ADC reference | Accepts external 2.5 V reference or internal 2.5 V VREF output - ensures stable conversion under supply variation |
| MTU0A / MTU0B | PWM output / complementary waveform | 16-bit MTU channel with dead-time control - generates isolated gate drive signals for power stage feedback |
| SCI0_TX / SCI0_RX | Asynchronous serial interface | Full-duplex UART with hardware flow control - connects to host MCU or wireless module at up to 2 Mbps baud rate |
| RSCAN_TX / RSCAN_RX | CAN bus physical layer | Differential CAN FD-capable signaling (ISO11898-1) - enables robust fieldbus communication in noisy industrial settings |
Key Features
| Feature | Design Value |
|---|---|
| 24-bit DSAD with sinc filtering | Simultaneous 50/60 Hz rejection at 10/54 SPS - eliminates mains interference in energy metering without software filtering |
| On-chip voltage reference | 2.5 V output with 8 ppm/°C drift (–40 to +85°C) - replaces external precision reference ICs, reducing BOM count |
| IEC60730 safety support | Hardware-assisted RAM test, clock accuracy monitoring (CAC), and ADC self-diagnostic - accelerates Class B certification |
| Event Link Controller (ELC) | Direct hardware-triggered ADC sampling from timer or GPIO events - achieves deterministic sub-µs latency without CPU intervention |
| Low-power timer (LPT) | 16-bit counter running on sub-clock (32.768 kHz) during software standby - enables periodic wake-up every 2 sec with <1 µA current draw |
| Programmable gain instrumentation amplifier | 11 nVRMS input noise @ gain=128, 3.8 SPS - resolves <100 nV signals from high-impedance sensors like thermocouples |
Applications
| Industrial Flow Meter | Smart Electricity Meter |
|---|---|
|
Use Scenario: High-accuracy volumetric flow measurement using differential pressure sensors and temperature-compensated RTDs. IC Role / Device Role / Timing Role: Primary sensor fusion MCU performing real-time 24-bit ADC acquisition, PGA gain scaling, floating-point linearization, and CAN-based data reporting. Use Value: Integrated excitation current sources and ±5-V HVAIN pins eliminate external bias circuitry; simultaneous 50/60 Hz rejection ensures metrology-grade accuracy in grid-connected environments. |
Use Scenario: Revenue-grade electricity metering with harmonic analysis, tamper detection, and DLMS/COSEM protocol stack. IC Role / Device Role / Timing Role: System-on-chip controller managing polyphase voltage/current sampling, RMS calculation, tariff switching, and secure communication via RS485/CAN. Use Value: 24-bit DSAD with 125 kSPS supports oversampled 16-kHz sampling for Class 0.2 accuracy; built-in CRC and DOC accelerate checksum validation for firmware and metering data. |
| Condition Monitoring Node | Programmable Logic Controller I/O Module |
|
Use Scenario: Wireless vibration and temperature sensor node for predictive maintenance on rotating machinery. IC Role / Device Role / Timing Role: Low-power acquisition engine capturing accelerometer waveforms via DSAD, executing FFT on FPU, and triggering BLE/Wi-Fi wake-up on anomaly detection. Use Value: Software standby mode with LPT wake-up reduces average current to <5 µA; on-chip temperature sensor (±5°C) enables thermal derating without external IC. |
Use Scenario: Analog input expansion module for PLC backplanes requiring 4–20 mA loop-powered sensor interfaces. IC Role / Device Role / Timing Role: Isolated analog front-end processor handling current-loop conditioning, HART modulation, and diagnostic supervision. Use Value: Rail-to-rail PGA and ±5-V HVAIN support direct connection to 4–20 mA receivers; low-side switch (10 Ω) enables safe open-wire detection and loop integrity checks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision analog microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F523E5BDFL#10 | 128-KB flash / 16-KB SRAM; identical 24-bit DSAD, PGA, and excitation current specs | Suitable for cost-sensitive designs with smaller firmware footprints and reduced calibration storage needs | Select when application code size remains under 128 KB and no future feature expansion is anticipated |
| ADUCM3029BBCZ-RL7 | ARM Cortex-M3 core; 260 kSPS 16-bit SAR ADC; no integrated PGA or excitation sources | Requires external signal conditioning for bridge/RTD sensors; better suited for high-speed control loops than precision metrology | Choose when prioritizing ARM ecosystem compatibility over integrated analog front-end completeness |
Compared with R5F523E6BDFL#10, R5F523E5BDFL#10 offers identical analog performance at lower memory cost, while ADUCM3029BBCZ-RL7 trades integrated analog functionality for higher CPU throughput and broader toolchain support - making R5F523E6BDFL#10 optimal for metrology-first designs where analog integration reduces system complexity and bill-of-materials.
Availability
R5F523E6BDFL#10 is available at Aetrix Electronics and suitable for industrial flow meters, smart electricity meters, condition monitoring nodes, and PLC analog I/O modules requiring stable component supply across multi-year production cycles.
Supply support for R5F523E6BDFL#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 solutions for industrial, automotive, and IoT markets - with over 40 years of MCU innovation and ISO/IEC 17025-accredited reliability testing.
The RX23E-B Group targets high-precision industrial sensing applications, integrating metrology-grade analog peripherals with real-time CPU performance and functional safety features to replace discrete analog signal chains in smart meters and process instrumentation.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E6BDFL#10?
The R5F523E6BDFL#10 supports a maximum sampling rate of 125 kSPS for its 24-bit delta-sigma ADC (DSADB). This rate is achievable with modulator clock fMOD = 4 MHz and appropriate sinc filter configuration. At lower data rates (e.g., 3.8 SPS), the device delivers 24-bit effective resolution with simultaneous 50/60 Hz rejection - a key capability for R5F523E6BDFL#10 in energy metering and precision sensor applications.
Does R5F523E6BDFL#10 include an integrated voltage reference, and what is its accuracy?
Yes, R5F523E6BDFL#10 includes an on-chip voltage reference (VREF) with nominal output of 2.5 V, temperature drift of 8 ppm/°C over –40°C to +85°C, and output current capability of ±10 mA. This reference can be used directly by the 24-bit DSAD and 12-bit S12AD converters, eliminating the need for external precision references in most metrology designs - a verified specification confirmed in the R01DS0402EJ0100 datasheet Section 1.1.
Can R5F523E6BDFL#10 operate with a single 3.3-V supply, and what are the implications for analog performance?
R5F523E6BDFL#10 operates from a single 1.8-V to 5.5-V VCC supply, so 3.3 V is fully supported. However, AVCC0 (analog supply for S12AD) must be 4.5–5.5 V for full 12-bit ADC performance (1.4 µs conversion time). At 3.3 V on AVCC0, S12AD operation is limited to reduced speed and accuracy. The 24-bit DSAD remains functional at 3.3 V but benefits from external 2.5 V reference stability - a design constraint explicitly documented for R5F523E6BDFL#10 in Table 1.1.
How many excitation current sources does R5F523E6BDFL#10 provide, and what are their key specifications?
R5F523E6BDFL#10 provides two independent excitation current sources (IEXC0 and IEXC1), each programmable from 50 µA to 1000 µA in six discrete steps. Key specs include ±0.2% current matching between channels and 5 ppm/°C drift matching - enabling accurate 2-/3-/4-wire RTD measurements without external calibration. These sources are directly routed to the analog multiplexer and support disconnect detection, as specified in the R5F523E6BDFL#10 datasheet Section 1.1 and Figure 1.2 block diagram.
Is R5F523E6BDFL#10 pin-compatible with other members of the RX23E-B family, such as R5F523E6KDFM?
No, R5F523E6BDFL#10 is not pin-compatible with R5F523E6KDFM. R5F523E6BDFL#10 uses a 48-pin LFQFP (PLQP0048KB-B), while R5F523E6KDFM uses a 64-pin LFQFP (PLQP0064KB-C). Pin counts, pitch, and I/O allocation differ significantly - Table 1.2 confirms R5F523E6BDFL#10 has only 17 general-purpose I/O pins versus 30 on the 64-pin variant. Migration requires PCB redesign; Renesas does not claim pin compatibility across package variants of the RX23E-B Group.
R5F523E6BDFL#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RX23E-B
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RXv2
- Core Size:
- 32-Bit
- Speed:
- 32MHz
- Connectivity:
- CANbus, I2C, SCI, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 17
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 8x12b SAR, 6x24b Sigma-Delta; D/A 1x16b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F523E6BDFL#10 FAQ
1.How can I place an order for R5F523E6BDFL#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E6BDFL#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 R5F523E6BDFL#10 reliable?
The price and inventory of R5F523E6BDFL#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E6BDFL#10 is usually 5 days.
3.What payment methods are accepted for R5F523E6BDFL#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E6BDFL#10 transactions.
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4.How is shipping managed for R5F523E6BDFL#10?
R5F523E6BDFL#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E6BDFL#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 R5F523E6BDFL#10?
For technical support, including R5F523E6BDFL#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E6BDFL#10 requirements.
6.How does Aetrix verify that R5F523E6BDFL#10 is sourced from the original manufacturer or authorized distributors?
All R5F523E6BDFL#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 R5F523E6BDFL#10 meets industry standards.
7.What is the process for return or replacement of R5F523E6BDFL#10?
All R5F523E6BDFL#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E6BDFL#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 R5F523E6BDFL#10 part is unused and in its original packaging.
Return procedure for R5F523E6BDFL#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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