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Renesas R5F523E6SGNF#00
- Part No.:
- R5F523E6SGNF#00
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F523E6SGNF#00.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 40WFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,392
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Product details
Overview
R5F523E6SGNF#00 from Renesas is a 32-bit RXv2 core MCU optimized for high-precision industrial sensor signal conditioning, featuring dual 24-bit delta-sigma ADCs (DSAD0/DSAD1), rail-to-rail programmable gain instrumentation amplifiers (PGA ×2), 2.5 V low-drift voltage reference (10 ppm/°C), and integrated excitation current sources (4×, 50–1000 µA). It operates at 32 MHz with 256 KB flash, 32 KB SRAM, and supports –40°C to +105°C ambient temperature.
For engineers reviewing the R5F523E6SGNF#00 datasheet, R5F523E6SGNF#00 pinout, R5F523E6SGNF#00 application, or R5F523E6SGNF#00 equivalent, this device is selected for high-accuracy weigh scales, RTD/thermocouple transmitters, and precision analog front-end control where simultaneous 24-bit A/D conversion, on-chip PGA calibration, and IEC60730-compliant self-test are required.
Technical Context
The R5F523E6SGNF#00 integrates two independent 24-bit delta-sigma A/D converters with fourth-order sinc filters, selectable normal/low-power modes (7.6–15625 SPS / 1.9–3906 SPS), and simultaneous 50/60 Hz rejection at 10/54 SPS. Each DSAD unit supports up to six differential inputs and includes offset/gain error calibration, disconnect detection assist, and external reference input capability.
Its analog front end includes a 2.5 V ±10 ppm/°C voltage reference, bias voltage generator (VBIAS = (AVCC0 + AVSS0)/2), four programmable excitation current sources (±0.2% matching, 5 ppm/°C drift), and a 10 Ω max low-side switch (LSW) for sensor excitation control - all synchronized via the Event Link Controller (ELC) to eliminate CPU intervention during conversion sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC Harvard architecture, 32 MHz max, 64 DMIPS, IEEE 754-compliant FPU |
| Flash / RAM / Data Flash | 256 KB code flash (no-wait @32 MHz), 32 KB SRAM, 8 KB data flash (1M erase/program cycles) |
| Delta-Sigma ADC | 2 units × 24-bit resolution, 23-bit effective (gain=1, 7.6 SPS), fourth-order sinc filter, simultaneous 50/60 Hz rejection |
| PGA & Reference | Rail-to-rail PGA (gain=1–128), 30 nVRMS noise (gain=128), 2.5 V ref (±10 ppm/°C), ±10 mA output |
| Excitation & Switching | 4× excitation current sources (50–1000 µA, ±0.2% matching), 10 Ω max LSW for load control |
| Operating Range | –40°C to +105°C (G-grade), 1.8–5.5 V supply, 32 MHz operation supported across full voltage range |
| Package & Pins | PWQN0040KD-A: 40-pin HWQFN, 6 × 6 mm, 0.5 mm pitch, 16 general-purpose I/O pins |
Pinout & Package
PWQN0040KD-A is a 40-pin HWQFN package (6 × 6 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions include dedicated analog inputs (AIN0–AIN9, REF0P/N, REF1P/N), excitation outputs (IEXC0–IEXC3), low-side switch (LSW), reference output (REFOUT), and dual delta-sigma ADC channels (DSAD0/DSAD1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN0–AIN9 | Analog Input | 10-pin analog input bank supporting differential, pseudo-differential, and single-ended configurations for DSAD0/DSAD1 |
| REF0P/REF0N, REF1P/REF1N | Reference Input | Dedicated positive/negative reference inputs per DSAD unit; enable external reference or ratiometric measurement |
| IEXC0–IEXC3 | Excitation Output | Four programmable current sources (50–1000 µA) for RTD, bridge, or thermistor biasing with matched drift |
| LSW | Low-Side Switch | 10 Ω max on-resistance switch enabling controlled ground path for 4-wire sensor excitation |
| REFOUT | Voltage Reference Output | 2.5 V ±10 ppm/°C reference output; requires 0.47 µF capacitor to AVSS0 for stability |
| AVCC0/AVSS0 | Analog Power Supply | Separate analog domain supply (2.7–5.5 V) with dedicated ground; decoupling critical for 24-bit accuracy |
Key Features
| Feature | Design Value |
|---|---|
| IEC60730 Self-Diagnostic Support | Hardware-assisted RAM test (via DOC), A/D converter disconnect detection, clock accuracy monitoring (CAC), IWDT validation |
| Synchronized Multi-Channel Acquisition | ELC-triggered simultaneous start of both DSAD units and S12AD, enabling correlated analog sampling without CPU overhead |
| Programmable Gain Instrumentation Amplifier | Rail-to-rail input/output, gain=1–128, 30 nVRMS noise (gain=128), 10 nV/°C offset drift, 1 ppm/°C gain drift |
| Low-Power Delta-Sigma Operation | Low-power mode (1.9–3906 SPS) extends battery life in portable instrumentation while retaining 22-bit effective resolution |
| Integrated Excitation & Bias Control | Four matched excitation sources + VBIAS generator ((AVCC0+AVSS0)/2) eliminate external components for bridge/RTD biasing |
Applications
| Industrial Weigh Scale Transmitter | RTD Temperature Transmitter |
|---|---|
|
Use Scenario: High-accuracy digital weight transmitter for platform scales using 350 Ω strain gauge bridges. IC Role / Device Role / Timing Role: Primary signal conditioner: digitizes mV-level bridge output via DSAD0/DSAD1 with PGA gain ×128, performs real-time linearization, and communicates calibrated weight over CAN. Use Value: Achieves ≤0.005% FS accuracy with on-chip offset/gain calibration, 50/60 Hz line rejection, and IEC60730 Class B compliance - eliminating external precision op-amps and reference ICs. |
Use Scenario: DIN-rail-mounted 4–20 mA RTD transmitter for process temperature monitoring in chemical plants. IC Role / Device Role / Timing Role: Analog front-end controller: supplies excitation current (IEXC0–IEXC3), measures 3-/4-wire Pt100 via DSAD0/DSAD1, computes linearized temperature, and drives 4–20 mA loop via DAC+op-amp. Use Value: Enables ±0.1°C accuracy over –40°C to +105°C using internal 2.5 V reference, matched excitation sources, and cold-junction compensation via integrated TEMPS sensor. |
| Thermocouple Signal Conditioner | High-Precision Data Logger |
|
Use Scenario: Isolated thermocouple input module for PLC analog input cards supporting J/K/T/E types. IC Role / Device Role / Timing Role: Cold-junction compensator and sigma-delta digitizer: reads thermocouple voltage with DSAD0, measures local temperature via TEMPS sensor, and applies polynomial compensation in hardware-accelerated FPU. Use Value: Delivers ±1.5°C total error (including CJC) without external thermistors or lookup tables; ELC synchronizes DSAD acquisition with TEMPS reading to minimize timing skew. |
Use Scenario: Battery-powered environmental monitor logging temperature, humidity (via I²C sensor), and pressure (via bridge sensor). IC Role / Device Role / Timing Role: Low-power system-on-chip: powers sensors via IEXC/Low-power DSAD modes, stores calibrated data in data flash, and transmits via SCI/RSPI to host MCU. Use Value: Extends 10-year battery life using software standby mode with LPT wake-up, 1.9 SPS DSAD operation, and background data flash writes (BGO) - no external power management IC needed. |
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 |
|---|---|---|---|
| R5F523E6AGNF#20 | Same package and pinout; rated for –40°C to +105°C but only one 24-bit DSAD unit (vs. two in R5F523E6SGNF#00) | Lower channel count limits simultaneous multi-sensor acquisition; suitable for single RTD or thermocouple systems | Select when dual 24-bit DSAD is unnecessary and cost reduction is prioritized over redundancy or parallel sensing. |
| ADS131M04IPBSR | Standalone 24-bit delta-sigma ADC (4-channel), no MCU core, no PGA, no excitation sources - requires external processor and support circuitry | Used in designs where analog acquisition is separated from control logic; lacks integrated firmware self-test and ELC synchronization | Choose when maximum ADC performance is required independently of processing, or when existing host MCU handles calibration and communication. |
Compared with R5F523E6AGNF#20, R5F523E6SGNF#00 provides dual DSAD units for true simultaneous multi-sensor acquisition and full IEC60730 diagnostic coverage; versus ADS131M04IPBSR, it eliminates external component count and enables deterministic real-time control within a single chip.
Availability
R5F523E6SGNF#00 is available at Aetrix Electronics and suitable for industrial temperature transmitters, weigh scale electronics, thermocouple conditioners, and high-precision data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F523E6SGNF#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 R5F523E6SGNF#00 - was designed specifically for high-accuracy sensor signal conditioning in industrial automation, offering integrated 24-bit delta-sigma ADCs, PGAs, excitation sources, and IEC60730 safety features in a single MCU.
FAQ
What is the operating temperature range of the R5F523E6SGNF#00?
The R5F523E6SGNF#00 is rated for –40°C to +105°C (G-grade), making it suitable for demanding industrial environments such as factory-floor transmitters and outdoor process instrumentation. This rating is validated across all specified electrical parameters including 24-bit delta-sigma ADC performance, PGA gain accuracy, and excitation current source matching - no derating required at maximum ambient temperature.
Does the R5F523E6SGNF#00 support simultaneous sampling across both 24-bit delta-sigma ADC units?
Yes, the R5F523E6SGNF#00 supports hardware-synchronized start of conversion for both DSAD0 and DSAD1 using the Event Link Controller (ELC). This enables true simultaneous sampling of two independent sensor channels - critical for phase-sensitive measurements like 3-phase power monitoring or dual-bridge load cells - without CPU intervention or software timing jitter.
How many excitation current sources does the R5F523E6SGNF#00 provide, and what are their key specifications?
The R5F523E6SGNF#00 provides four independent excitation current sources (IEXC0–IEXC3) with programmable output 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 - essential for high-accuracy 3-/4-wire RTD measurements where mismatch-induced errors must be minimized.
Can the R5F523E6SGNF#00 operate with an external reference voltage for its 24-bit delta-sigma ADCs?
Yes, the R5F523E6SGNF#00 allows external reference voltage connection via REF0P/REF0N and REF1P/REF1N pins for each DSAD unit. This enables ratiometric measurements (e.g., with bridge sensors) or use of higher-precision external references. The internal 2.5 V reference remains available via REFOUT and can be used simultaneously for other analog blocks like the 12-bit S12AD converter.
What safety certifications or self-test features does the R5F523E6SGNF#00 support for IEC60730 compliance?
The R5F523E6SGNF#00 includes hardware-assisted IEC60730 Class B features: RAM test via Data Operation Circuit (DOC), A/D converter disconnect detection, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT) validation, and analog input fault detection. These are implemented in dedicated peripherals - not software-only routines - ensuring deterministic execution and certification readiness.
R5F523E6SGNF#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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F523E6SGNF#00 FAQ
1.How can I place an order for R5F523E6SGNF#00 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E6SGNF#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 R5F523E6SGNF#00 reliable?
The price and inventory of R5F523E6SGNF#00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E6SGNF#00 is usually 5 days.
3.What payment methods are accepted for R5F523E6SGNF#00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E6SGNF#00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E6SGNF#00?
R5F523E6SGNF#00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E6SGNF#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 R5F523E6SGNF#00?
For technical support, including R5F523E6SGNF#00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E6SGNF#00 requirements.
6.How does Aetrix verify that R5F523E6SGNF#00 is sourced from the original manufacturer or authorized distributors?
All R5F523E6SGNF#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 R5F523E6SGNF#00 meets industry standards.
7.What is the process for return or replacement of R5F523E6SGNF#00?
All R5F523E6SGNF#00 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E6SGNF#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 R5F523E6SGNF#00 part is unused and in its original packaging.
Return procedure for R5F523E6SGNF#00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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