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Renesas R5F523E5SDNF#00
- Part No.:
- R5F523E5SDNF#00
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F523E5SDNF#00.pdf
- Description:
- IC MCU 32BIT 128MB FLASH 40WFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,944
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Product details
Overview
R5F523E5SDNF#00 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision industrial sensor measurement, integrating one 24-bit delta-sigma ADC unit, a 12-bit SAR ADC (6 channels), rail-to-rail programmable gain instrumentation amplifiers (gain = 1–128), excitation current sources (up to four, 50–1000 µA), and a low-drift 2.5-V voltage reference (10 ppm/°C). It operates at up to 32 MHz with 128 KB flash, 16 KB SRAM, and 8 KB data flash, targeting thermocouple and RTD signal conditioning in compact industrial modules.
For engineers reviewing the R5F523E5SDNF#00 datasheet, R5F523E5SDNF#00 pinout, R5F523E5SDNF#00 application, or R5F523E5SDNF#00 equivalent, this MCU delivers calibrated analog front-end performance with integrated diagnostics for IEC60730 Class B compliance, event-driven low-power operation via ELC, and CAN 2.0B communication - all in a 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch) package suitable for space-constrained metering and process control designs.
Technical Context
The R5F523E5SDNF#00 implements a single 24-bit delta-sigma A/D converter unit (DSAD0) with fourth-order sinc filtering, 23-bit effective resolution at 7.6 SPS, and simultaneous 50/60 Hz rejection. Its analog front end includes two independent excitation current sources (IEXC0/IEXC1), bias voltage generator (VBIAS = (AVCC0 + AVSS0)/2), and low-side switch (10 Ω on-resistance) for 4-wire RTD configurations.
Digital subsystems include a 32-bit RXv2 CPU core (64 DMIPS @ 32 MHz), FPU compliant with IEEE754 single-precision, memory protection unit (MPU), and event link controller (ELC) enabling timer-triggered ADC conversions and peripheral coordination without CPU wake-up - critical for deterministic low-power sensor acquisition cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC Harvard architecture, 32 MHz max, 64 DMIPS - enables real-time digital filtering and sensor linearization in firmware. |
| Delta-Sigma ADC | 1 × 24-bit DSAD unit, 23-bit ENOB @ 7.6 SPS, 50/60 Hz rejection - supports high-accuracy thermocouple cold-junction compensation and RTD resistance measurement. |
| PGA Gain Range | ×1 to ×128, rail-to-rail input, 30 nVRMS noise @ gain=128 - allows direct interface to low-output mV-level sensors without external amplification. |
| Excitation Current Sources | 2 channels (IEXC0/IEXC1), 50–1000 µA, ±0.2% matching - enables precise 2-/3-/4-wire RTD excitation with matched current paths. |
| Voltage Reference | 2.5 V output, ±10 ppm/°C drift, ±10 mA drive - provides stable reference for both DSAD and S12AD converters, eliminating external REF ICs. |
| Package & Pins | 40-pin HWQFN (PWQN0040KD-A), 6 × 6 mm, 0.5 mm pitch, 16 general I/O - fits compact PCB layouts while supporting analog shielding and layout-sensitive sensor routing. |
| Operating Temp | –40°C to +85°C (D version) - qualified for industrial ambient environments including factory floor and outdoor metering enclosures. |
Pinout & Package
Package: 40-pin HWQFN (PWQN0040KD-A), 6 × 6 mm body, 0.5 mm pitch, exposed thermal pad. Designed for reflow soldering and thermal management in sealed industrial housings.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN0–AIN5 | Differential analog inputs for DSAD0 | Support up to 4 differential or 6 single-ended channels; internally routed to PGA and sinc filter for high-resolution sensor digitization. |
| REF0P/REF0N | DSAD0 reference voltage inputs | Accept external reference or internal VREF (2.5 V); enable ratiometric measurement for bridge/RTD sensors. |
| IEXC0/IEXC1 | Excitation current outputs | Programmable 50–1000 µA sources with ±0.2% matching - used to drive RTD elements with minimal self-heating error. |
| LSW | Low-side switch output | 10 Ω on-resistance MOSFET; enables 4-wire RTD current return path switching and fault-safe open-circuit detection. |
| REFOUT | Internal voltage reference output | 2.5 V, ±10 ppm/°C; requires 0.47 µF capacitor to AVSS0 - supplies stable reference to DSAD0 and external circuitry. |
| AVCC0/AVSS0 | Analog power supply rails | Separate 2.7–5.5 V analog domain; isolation reduces digital noise coupling into precision ADC measurements. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated AFE for RTD/thermocouple | Single-chip solution with PGA, DSAD, excitation sources, LSW, and VREF - eliminates 5+ discrete analog components in temperature transmitters. |
| IEC60730 Class B support | Built-in self-test for ADC, clock accuracy (CAC), IWDT, RAM (via DOC), and disconnect detection - reduces certification effort for safety-critical industrial equipment. |
| Event Link Controller (ELC) | Hardware-triggered ADC start, timer synchronization, and peripheral chaining without CPU intervention - enables <1 µs jitter-free sampling sequences in sleep mode. |
| Low-power sensor acquisition | Software standby mode with LPT running off 15-kHz IWDT oscillator - achieves sub-µA system idle current while maintaining timing for periodic wake-up and measurement. |
| Calibration-ready architecture | On-chip offset/gain calibration registers for DSAD and S12AD, plus inter-unit sync start - supports factory and field calibration of multi-channel sensor systems. |
Applications
| Industrial Temperature Transmitter | Smart Pressure Sensor Module |
|---|---|
|
Use Scenario: 4–20 mA loop-powered transmitter measuring Pt100 RTD in HVAC or process control. IC Role / Device Role / Timing Role: Primary signal conditioner and controller: conditions RTD voltage, applies linearization, drives 4–20 mA DAC, and communicates via HART or CAN. Use Value: Integrated excitation sources, LSW, and DSAD eliminate external op-amps and reference ICs; 23-bit ENOB ensures <0.1°C accuracy over –40°C to +85°C. |
Use Scenario: Battery-operated wireless pressure sensor for predictive maintenance in compressed air systems. IC Role / Device Role / Timing Role: Low-power measurement node: acquires bridge sensor output, performs offset/temperature compensation, and transmits via CAN or SCI. Use Value: ELC-triggered ADC + software standby + LPT enables 10-second wake-up intervals with <2 µA average current; PGA gain flexibility supports multiple bridge sensitivities. |
| Energy Meter Analog Front End | Programmable Logic Controller (PLC) Input Module |
|
Use Scenario: DIN-rail mounted electricity meter with auxiliary temperature monitoring for accuracy compensation. IC Role / Device Role / Timing Role: Secondary analog acquisition channel: measures thermistor or RTD for meter IC temperature drift correction. Use Value: Simultaneous 50/60 Hz rejection at 10 SPS enables noise-immune temperature reading in electrically noisy meter cabinets; VREF stability ensures long-term calibration retention. |
Use Scenario: Modular PLC analog input card accepting thermocouple, RTD, and millivolt signals across 8 channels. IC Role / Device Role / Timing Role: Per-slot AFE controller: configures PGA gain, excitation current, and ADC mode per connected sensor type. Use Value: Dual ADC architecture (DSAD + S12AD) allows high-resolution slow sensors (RTD) and fast transient detection (thermocouple cold-junction) on same die; MPC enables flexible pin assignment for mixed-signal routing. |
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 |
|---|---|---|---|
| R5F523E5ADNF#20 | Two 24-bit DSAD units (vs. one), 4 differential DSAD inputs (vs. 6), same 40-pin HWQFN package | Supports dual-sensor systems (e.g., RTD + thermocouple) but with reduced DSAD channel count per unit | Select when needing concurrent high-resolution measurement of two independent analog domains. |
| R5F523E5SDFL#30 | Same DSAD configuration (1 unit), but 48-pin LFQFP (7 × 7 mm), 20 GPIO (vs. 16), full 6-channel DSAD differential input | Enables more complex analog routing, additional I/O for digital interfaces or status LEDs, better thermal dissipation | Select when board layout allows larger footprint and requires maximum DSAD channel utilization or enhanced I/O flexibility. |
Compared with R5F523E5ADNF#20 and R5F523E5SDFL#30, the R5F523E5SDNF#00 offers optimal balance of DSAD precision, excitation capability, and compact 40-pin packaging - making it ideal for cost- and space-constrained single-sensor industrial transmitters where 6 differential DSAD inputs and two matched excitation sources are sufficient.
Availability
R5F523E5SDNF#00 is available at Aetrix Electronics and suitable for industrial temperature transmitters, smart pressure sensors, energy meter auxiliary monitoring, and PLC analog input modules requiring stable component supply, long lifecycle assurance, and traceable sourcing for production programs.
Supply support for R5F523E5SDNF#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 R5F523E5SDNF#00, was designed specifically for high-accuracy sensor signal conditioning in industrial automation - integrating precision analog front ends, real-time processing, and functional safety features into a single MCU die.
FAQ
What is the maximum effective resolution of the delta-sigma ADC in R5F523E5SDNF#00?
The R5F523E5SDNF#00 features one 24-bit delta-sigma A/D converter (DSAD0) with up to 23-bit effective resolution at 7.6 SPS (gain = 1, output data rate = 7.6 SPS), verified per datasheet R01DS0330EJ0130. This resolution is achieved with fourth-order sinc filtering and simultaneous 50/60 Hz rejection, making R5F523E5SDNF#00 suitable for high-accuracy RTD and thermocouple measurement where noise immunity is critical.
Does R5F523E5SDNF#00 support IEC60730 Class B compliance out of the box?
Yes, R5F523E5SDNF#00 includes hardware-assisted self-diagnostic functions required for IEC60730 Class B: ADC offset/gain calibration, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT), RAM test support via Data Operation Circuit (DOC), and analog input disconnect detection. These features reduce firmware development effort for safety certification, and R5F523E5SDNF#00 is explicitly positioned for Class B-compliant industrial equipment per its datasheet feature list.
How many excitation current sources does R5F523E5SDNF#00 provide, and what are their key specifications?
R5F523E5SDNF#00 provides two dedicated excitation current sources (IEXC0 and IEXC1), each programmable from 50 µA to 1000 µA in six discrete steps. They offer ±0.2% current matching and 5 ppm/°C drift matching - critical for accurate 2-/3-/4-wire RTD measurements. The R5F523E5SDNF#00 datasheet confirms these sources are fully integrated and controllable via register settings without external components.
What is the operating temperature range specified for R5F523E5SDNF#00?
R5F523E5SDNF#00 is rated for an operating ambient temperature range of –40°C to +85°C (D version), as confirmed in Table 1.3 and Figure 1.1 of the R01DS0330EJ0130 datasheet. This qualification covers industrial environments such as factory automation, building controls, and outdoor metering enclosures where extended thermal stability is required.
Can R5F523E5SDNF#00 perform simultaneous analog conversions across its ADCs?
Yes, R5F523E5SDNF#00 supports inter-unit A/D conversion synchronized start between its 24-bit delta-sigma ADC (DSAD0) and 12-bit SAR ADC (S12AD), as documented in the "Analog Functions" section of the datasheet. This capability enables time-aligned sampling of fast transients (via S12AD) and high-resolution DC values (via DSAD0), which is essential for applications like thermocouple cold-junction compensation with dynamic ambient sensing.
R5F523E5SDNF#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:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K 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:
R5F523E5SDNF#00 FAQ
1.How can I place an order for R5F523E5SDNF#00 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5SDNF#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 R5F523E5SDNF#00 reliable?
The price and inventory of R5F523E5SDNF#00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5SDNF#00 is usually 5 days.
3.What payment methods are accepted for R5F523E5SDNF#00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5SDNF#00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E5SDNF#00?
R5F523E5SDNF#00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5SDNF#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 R5F523E5SDNF#00?
For technical support, including R5F523E5SDNF#00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5SDNF#00 requirements.
6.How does Aetrix verify that R5F523E5SDNF#00 is sourced from the original manufacturer or authorized distributors?
All R5F523E5SDNF#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 R5F523E5SDNF#00 meets industry standards.
7.What is the process for return or replacement of R5F523E5SDNF#00?
All R5F523E5SDNF#00 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5SDNF#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 R5F523E5SDNF#00 part is unused and in its original packaging.
Return procedure for R5F523E5SDNF#00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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