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Renesas R5F523E6SDNF#00
- Part No.:
- R5F523E6SDNF#00
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F523E6SDNF#00.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 40WFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,594
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Product details
Overview
R5F523E6SDNF#00 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision analog measurement in industrial temperature sensing systems, featuring a 24-bit delta-sigma A/D converter (1 unit), 12-bit SAR A/D converter (4 channels), rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), and integrated excitation current sources (up to four, 50–1000 µA). It operates at up to 32 MHz with 256 KB flash, 32 KB SRAM, and 8 KB data flash, supporting IEC60730-compliant diagnostics.
For engineers reviewing the R5F523E6SDNF#00 datasheet, R5F523E6SDNF#00 pinout, R5F523E6SDNF#00 application, or R5F523E6SDNF#00 equivalent, this device is selected for thermocouple and RTD signal conditioning where low-noise analog front-end integration, on-chip calibration support, and dual A/D architecture reduce external component count and improve system-level accuracy in compact 40-pin HWQFN designs.
Technical Context
The R5F523E6SDNF#00 implements a dedicated analog subsystem with two independent 24-bit delta-sigma A/D converters (DSAD0/DSAD1), each with fourth-order sinc filtering, simultaneous 50/60 Hz rejection at 10/54 SPS, and offset/gain error calibration. Its programmable gain instrumentation amplifier achieves 30 nVRMS noise (gain = 128) and 10 nV/°C offset drift.
Digital execution is handled by the RXv2 CPU core delivering 64 DMIPS at 32 MHz, supported by an IEEE 754-compliant FPU, memory protection unit (MPU), and event link controller (ELC) enabling interrupt-free peripheral coordination-including synchronized A/D conversion triggers and low-power timer operation during software standby mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC Harvard, 32 MHz max, 64 DMIPS - enables real-time sensor fusion and digital filtering without external DSP. |
| Delta-Sigma A/D | 24-bit resolution, 1 unit × 6-channel differential input - supports high-accuracy thermocouple/RTD digitization with >110 dB SNR. |
| PGA Gain Range | ×1 to ×128, rail-to-rail input - accommodates mV-level thermocouple outputs and high-impedance RTD bridges without external amplification. |
| Excitation Current Sources | 4 channels, 50–1000 µA, ±0.2% matching - allows precise 2-/3-/4-wire RTD biasing with matched thermal drift (5 ppm/°C). |
| Reference Voltage | 2.5 V ±10 ppm/°C, ±10 mA output - provides stable, low-drift reference for both delta-sigma and 12-bit A/D converters. |
| Package & Pins | PWQN0040KD-A, 40-pin HWQFN, 6 × 6 mm, 0.5 mm pitch - enables compact PCB layout for space-constrained industrial modules. |
| Operating Temp | –40°C to +85°C (D version) - qualified for use in factory automation, HVAC, and process control environments. |
| IEC60730 Support | Built-in self-test for A/D, clock accuracy (CAC), IWDT, RAM, and disconnect detection - reduces certification effort for Class B safety compliance. |
Pinout & Package
Package: PWQN0040KD-A, 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual-domain supply: VCC powers digital logic (1.8–5.5 V); VSS is common ground reference for all sections. |
| AVCC0 / AVSS0 | Analog power / Analog ground | Independent analog domain (2.7–5.5 V) isolates sensitive A/D and PGA circuitry from digital noise. |
| REF0P / REF0N REF1P / REF1N |
Delta-sigma A/D reference inputs | Accept external or internal (REFOUT) reference; enable ratiometric or absolute measurement configurations. |
| AIN0–AIN9 / AIN10–AIN11 | Analog input channels | 11 total single-ended or 6 differential inputs; AIN8/VREFL0 and AIN9/VREFH0 serve dual roles as A/D inputs or reference pins. |
| IEXC0–IEXC3 | Excitation current outputs | Four programmable current sources for RTD biasing; each supports 50–1000 µA with ±0.2% matching and 5 ppm/°C drift matching. |
| LSW | Low-side switch output | 10 Ω max on-resistance, 30 mA max current - drives external load switches or shunt-based current paths in 4-wire RTD circuits. |
| REFOUT | Internal voltage reference output | 2.5 V reference with 10 ppm/°C drift; requires 0.47 µF capacitor to AVSS0 for stability per datasheet Figure 1.3. |
| P14–P17, PB0–PB1, etc. | General-purpose I/O | 5-V tolerant, open-drain capable, pull-up configurable - interfaces with industrial-level digital signals and status indicators. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated analog front end | Single-chip solution combining 24-bit DSAD, 12-bit S12AD, PGA, VREF, IEXC, LSW, and TEMPS - eliminates discrete op-amps, references, and excitation drivers. |
| Synchronized dual A/D operation | Inter-unit A/D conversion start via ELC - enables time-aligned sampling of thermocouple (DSAD) and cold-junction compensation (S12AD) for accurate linearization. |
| Low-power precision timing | Low power timer (LPT) running from IWDT oscillator during software standby - maintains periodic sensor polling without waking CPU. |
| IEC60730 diagnostic acceleration | Hardware-assisted A/D disconnect detection, offset/gain calibration, RAM test (via DOC), and clock accuracy monitoring - cuts firmware validation effort by >40%. |
| Event-driven peripheral coordination | ELC links 56 event sources (e.g., MTU overflow, TMR match) directly to DSAD start, PWM sync, or DMA trigger - removes interrupt latency and CPU overhead. |
| Robust communication interface | CAN 2.0B (1 Mbps), SCI (LIN-capable), RSPI (16 Mbps), and RIIC (400 kbps SMBus) - supports multi-sensor networks and fieldbus integration in industrial nodes. |
Applications
| Thermocouple Signal Conditioning | RTD-Based Temperature Transmitter |
|---|---|
|
Use Scenario: High-accuracy measurement of K-type thermocouples in furnace controllers with cold-junction compensation. IC Role / Device Role / Timing Role: R5F523E6SDNF#00 performs cold-junction sensing (S12AD), thermocouple voltage digitization (DSAD), linearization, and CAN-based reporting. Use Value: 24-bit DSAD resolution and 10 nV/°C PGA offset drift ensure <±0.1°C system accuracy over –40°C to +85°C without external calibration. |
Use Scenario: 3-wire Pt100 RTD measurement in HVAC zone sensors with 4–20 mA loop output. IC Role / Device Role / Timing Role: R5F523E6SDNF#00 supplies matched excitation currents (IEXC0/IEXC1), measures bridge voltage (DSAD), computes resistance, and drives analog output via DAC or PWM. Use Value: ±0.2% current matching and 5 ppm/°C drift matching eliminate ratio-metric errors, enabling <±0.05% RTD resistance accuracy. |
| Industrial Process Monitor | Smart Sensor Node for IIoT |
|
Use Scenario: Multi-parameter monitoring (temperature, pressure, humidity) in PLC analog input modules. IC Role / Device Role / Timing Role: R5F523E6SDNF#00 acts as analog acquisition hub-synchronizing DSAD and S12AD conversions, performing CRC-protected data packaging, and forwarding via RSPI to host MCU. Use Value: Dual A/D architecture with ELC-triggered start ensures sub-µs timestamp alignment across sensors, critical for derivative-based control algorithms. |
Use Scenario: Battery-powered wireless temperature node using BLE or LoRaWAN for predictive maintenance. IC Role / Device Role / Timing Role: R5F523E6SDNF#00 executes ultra-low-power measurement cycles (deep sleep → LPT wake → DSAD sample → store → sleep), minimizing active time. Use Value: Software standby mode with LPT active draws <1 µA, extending 2000 mAh battery life to >5 years at 1-sample/minute duty cycle. |
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 |
|---|---|---|---|
| R5F523E6ADNF#20 | Same package and pinout, but includes 2 units of 24-bit DSAD (vs. 1 unit) and 6-channel S12AD (vs. 4-channel). | Required for dual-sensor systems (e.g., thermocouple + RTD simultaneously) or higher channel-count analog acquisition. | Select R5F523E6ADNF#20 when full DSAD dual-unit capability and expanded S12AD channel count are needed; otherwise R5F523E6SDNF#00 reduces cost and code complexity. |
| ADS124S08IRHBT | Standalone 24-bit delta-sigma ADC (no MCU), SPI interface, 32-pin QFN, no integrated PGA or excitation sources. | Used with external host MCU; lacks on-chip processing, diagnostics, and excitation - requires additional components for RTD/thermocouple support. | Choose ADS124S08IRHBT only when analog performance is prioritized over integration; R5F523E6SDNF#00 delivers lower BOM count and faster time-to-market for embedded sensor nodes. |
Compared with R5F523E6ADNF#20, R5F523E6SDNF#00 trades one DSAD unit and two S12AD channels for reduced cost and footprint while retaining full IEC60730 diagnostics and excitation capability. Against ADS124S08IRHBT, R5F523E6SDNF#00 integrates processing, timing, and safety functions-eliminating external MCU, clock, and power management ICs.
Availability
R5F523E6SDNF#00 is available at Aetrix Electronics and suitable for industrial temperature transmitters, RTD/thermocouple signal conditioners, and IEC60730-certified process monitors requiring stable component supply and long-term manufacturability.
Supply support for R5F523E6SDNF#00 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 applications.
The RX23E-A Group, including R5F523E6SDNF#00, was designed specifically for high-accuracy analog measurement in industrial temperature sensing-integrating precision A/D, excitation, and safety diagnostics into a single MCU die.
FAQ
What is the maximum operating frequency and core type of the R5F523E6SDNF#00?
The R5F523E6SDNF#00 features a 32-bit RXv2 CPU core with a maximum operating frequency of 32 MHz, delivering 64 DMIPS performance. It includes an IEEE 754-compliant single-precision floating-point unit, memory protection unit (MPU), and 5-stage pipeline Harvard architecture-enabling deterministic real-time execution for sensor signal processing and control loops in the R5F523E6SDNF#00.
How many delta-sigma A/D converter units does the R5F523E6SDNF#00 include, and what is their resolution?
The R5F523E6SDNF#00 includes one 24-bit delta-sigma A/D converter (DSAD) unit with six differential input channels, fourth-order sinc filtering, and simultaneous 50/60 Hz rejection at specific output data rates. This configuration is explicitly defined for the "S" variant in Table 1.3 and Figure 1.1 of the datasheet, distinguishing it from the "A" variant which includes two DSAD units. The R5F523E6SDNF#00 leverages this single high-resolution A/D for primary thermocouple or RTD digitization.
Does the R5F523E6SDNF#00 support IEC60730 Class B compliance, and which hardware features enable it?
Yes, the R5F523E6SDNF#00 includes hardware-assisted IEC60730 Class B compliance features: self-diagnostic functions for the A/D converter, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT), RAM test assistance via the data operation circuit (DOC), and analog input disconnect detection. These capabilities are documented in the "Useful functions for IEC60730 compliance" section of the R5F523E6SDNF#00 datasheet and reduce firmware validation burden for safety-critical industrial applications.
What are the excitation current source specifications for the R5F523E6SDNF#00?
The R5F523E6SDNF#00 provides up to four excitation current sources (IEXC0–IEXC3) with programmable output from 50 µA to 1000 µA in discrete steps. Current matching is ±0.2%, and drift matching is 5 ppm/°C-critical for precision 3-/4-wire RTD measurements. These sources are fully integrated into the analog front end and controllable via register settings, eliminating external current sources in the R5F523E6SDNF#00 design.
What package type and pin count does the R5F523E6SDNF#00 use, and is it RoHS-compliant?
The R5F523E6SDNF#00 uses the PWQN0040KD-A package: a 40-pin HWQFN measuring 6 × 6 mm with 0.5 mm pitch and an exposed thermal pad. It is RoHS-compliant and rated for operation from –40°C to +85°C. This compact, thermally efficient package supports high-density industrial PCB layouts and is validated for reflow soldering per JEDEC J-STD-020 standards in the R5F523E6SDNF#00 datasheet.
R5F523E6SDNF#00 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- Series:
- RX23E-A
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RXv2
- Core Size:
- 32-Bit
- Speed:
- 32MHz
- Connectivity:
- CANbus, I2C, SCI, SPI
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 20
- 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 4x12b, 12x24b Sigma-Delta
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F523E6SDNF#00 FAQ
1.How can I place an order for R5F523E6SDNF#00 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E6SDNF#00 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 R5F523E6SDNF#00 reliable?
The price and inventory of R5F523E6SDNF#00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E6SDNF#00 is usually 5 days.
3.What payment methods are accepted for R5F523E6SDNF#00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E6SDNF#00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E6SDNF#00?
R5F523E6SDNF#00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E6SDNF#00 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 R5F523E6SDNF#00?
For technical support, including R5F523E6SDNF#00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E6SDNF#00 requirements.
6.How does Aetrix verify that R5F523E6SDNF#00 is sourced from the original manufacturer or authorized distributors?
All R5F523E6SDNF#00 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 R5F523E6SDNF#00 meets industry standards.
7.What is the process for return or replacement of R5F523E6SDNF#00?
All R5F523E6SDNF#00 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E6SDNF#00, 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 R5F523E6SDNF#00 part is unused and in its original packaging.
Return procedure for R5F523E6SDNF#00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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