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Renesas R5F523E6MGNF#20
- Part No.:
- R5F523E6MGNF#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F523E6MGNF#20.pdf
- Description:
- 32BIT MCU RX23E-B 256K HWQFN40 -
- Quantity:
- Payment:
- Shipping:
Inventory:1,185
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Product details
Overview
R5F523E6MGNF#20 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision industrial sensing, featuring a 24-bit delta-sigma ADC with 31.25 kSPS max sampling rate, ±5-V analog input range, 256 KB on-chip flash, 32 KB SRAM, and integrated excitation current sources (50–1000 µA) - deployed in weigh scales, temperature transmitters, and strain-gauge-based process instrumentation.
For engineers reviewing the R5F523E6MGNF#20 datasheet, R5F523E6MGNF#20 pinout, R5F523E6MGNF#20 application, or R5F523E6MGNF#20 equivalent, key selection criteria include its 31.25 kSPS delta-sigma ADC performance at ±5 V full-scale, HWQFN-40 package constraints, CAN 2.0B interface compliance, and support for IEC 60730 Class B safety diagnostics including RAM test assistance and A/D self-calibration.
Technical Context
The R5F523E6MGNF#20 implements the RXv2 CPU core with 32 MHz max operation (64 DMIPS), single-precision IEEE 754 FPU, and memory protection unit - enabling deterministic real-time control in sensor signal conditioning firmware. Its dual A/D subsystem integrates an 8-channel 24-bit delta-sigma converter (DSADB) with fourth- to fifth-order sinc filtering and a separate 8-channel 12-bit SAR converter (S12ADE) for auxiliary measurements.
Timing and power management are tightly coupled: the low-power timer (LPT) operates during software standby using the 32.768 kHz sub-clock, while the independent watchdog timer (IWDT) uses a dedicated 15 kHz on-chip oscillator. The event link controller (ELC) enables autonomous peripheral chaining - e.g., MTU-triggered ADC conversion - without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC Harvard architecture, 32 MHz max, 64 DMIPS - enables real-time sensor fusion and floating-point math in compact code. |
| Delta-Sigma ADC | 24-bit resolution, 31.25 kSPS max, ±5-V input range, fourth/fifth-order sinc filters - supports high-accuracy load cell and RTD measurements. |
| Flash / RAM | 256 KB on-chip flash (no wait states at 32 MHz), 32 KB SRAM - sufficient for dual-channel sensor processing + CAN protocol stack. |
| Excitation Sources | Two programmable current sources (50–1000 µA, ±0.2% matching) - drives 4-wire bridge sensors with matched thermal drift. |
| Communication | CAN 2.0B (1 Mbps), 6× SCI, 1× I²C, 1× RSPI - enables fieldbus connectivity and multi-sensor daisy-chaining. |
| Package | PWQN0040KD-A: 40-pin HWQFN, 6 × 6 mm, 0.5 mm pitch - compact footprint for space-constrained industrial modules. |
| Operating Temp | –40°C to +105°C (G-version) - qualified for harsh environments like motor control cabinets and outdoor metering. |
Pinout & Package
PWQN0040KD-A is a 40-pin HWQFN package (6 × 6 mm, 0.5 mm pitch) with exposed thermal pad, rated for –40°C to +105°C operation. Pin functions align with RX23E-B Group standard mapping; HVAIN pins support ±5-V differential inputs, and IEXC pins deliver precision excitation currents.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | 1.8–5.5 V single-supply operation; separate AVCC0 (4.5–5.5 V) required for 12-bit ADC accuracy. |
| HVAIN0–HVAIN1 | Analog input (high-voltage) | ±5-V differential input pair for bridge sensor interfaces; includes disconnect detection assist. |
| IEXC0 / IEXC1 | Excitation current output | Programmable 50–1000 µA sources with ±0.2% matching - critical for ratiometric bridge measurement stability. |
| DSAD_VREFP / DSAD_VREFN | Delta-sigma ADC reference | Accepts external reference or internal 2.5 V source; fault detection ensures reference integrity during calibration. |
| CAN_TX / CAN_RX | CAN bus interface | Differential signaling compliant with ISO 11898-1 up to 1 Mbps - supports industrial automation networks. |
| MTU0A / MTU0B | PWM output (complementary) | 16-bit timer outputs with dead-time control - usable for driving gate drivers in analog front-end biasing circuits. |
Key Features
| Feature | Design Value |
|---|---|
| IEC 60730 Class B Support | Integrated self-test for A/D converter, clock accuracy measurement (CAC), IWDT, RAM (via DOC), and voltage detectors - reduces certification effort for safety-critical instruments. |
| Rail-to-Rail PGA | Programmable gain (×1 to ×128) with 11 nVRMS noise (gain=128) - enables direct connection to low-output mV/V sensors without external amplification. |
| Background Operation (BGO) | 8 KB data flash supports concurrent read/erase - allows firmware updates or calibration storage without interrupting sensor acquisition. |
| ELC-Driven Autonomy | Event Link Controller enables hardware-triggered ADC sampling from MTU or TMR - eliminates CPU polling latency in time-critical measurements. |
| Low-Drift Voltage Reference | 2.5 V output, 8 ppm/°C drift (–40 to +85°C), ±10 mA drive - provides stable reference for both delta-sigma and 12-bit ADCs under thermal variation. |
Applications
| Industrial Weigh Scales | Temperature Transmitters |
|---|---|
|
Use Scenario: Digital load cell interface in platform scales and hopper weighing systems requiring <10 µV resolution and NTEP/ OIML certification. IC Role / Device Role / Timing Role: Primary signal conditioner: digitizes mV/V bridge output via 24-bit DSAD, applies PGA gain, performs offset/gain calibration, and transmits via CAN. Use Value: 31.25 kSPS sampling with fifth-order sinc filtering achieves simultaneous 50/60 Hz rejection and <0.001% linearity - meets Class III accuracy requirements. |
Use Scenario: DIN-rail mounted 4–20 mA temperature transmitter for Pt100/Pt1000 RTD sensing in HVAC and process control loops. IC Role / Device Role / Timing Role: Sensor interface MCU: supplies excitation current, measures RTD resistance with DSAD, computes linearized temperature, and drives 16-bit DAC for analog output. Use Value: Matched 50–1000 µA excitation sources (±0.2%) and 4 nV/°C PGA offset drift minimize thermal error - enables ±0.1°C accuracy over –40 to +85°C. |
| Strain-Gauge Pressure Sensors | Multi-Channel Process Analyzers |
|
Use Scenario: High-stability pressure transducer for hydraulic system monitoring where long-term zero drift must be <0.05% FS/year. IC Role / Device Role / Timing Role: Precision analog front-end controller: conditions Wheatstone bridge output, performs auto-zero calibration using DSAD's background mode, and logs drift compensation data to data flash. Use Value: On-chip excitation current sources with 5 ppm/°C drift matching and DSAD reference voltage fault detection ensure metrological traceability without external references. |
Use Scenario: Compact water quality analyzer measuring pH, ORP, and conductivity across four electrochemical sensors in wastewater treatment. IC Role / Device Role / Timing Role: Multi-sensor hub MCU: sequences excitation and measurement across HVAIN channels, runs digital filters per sensor, and aggregates data for Modbus RTU over SCI. Use Value: Eight differential DSAD inputs + eight single-ended S12AD channels allow concurrent analog acquisition - reduces cycle time by 40% vs. sequential external ADCs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision sensing MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F523E6MDNF#20 | Same HWQFN-40 package, identical 31.25 kSPS/±5-V DSAD spec, but G-version (–40 to +105°C) vs. D-version of R5F523E6MGNF#20. | Targeted at extended-temperature industrial deployments (e.g., engine bay sensors), whereas R5F523E6MGNF#20 is rated –40 to +85°C. | Select R5F523E6MDNF#20 only if ambient operating temperature exceeds +85°C; otherwise, R5F523E6MGNF#20 is functionally identical and cost-optimized. |
| R5F523E5MGNF#20 | Same package and temperature grade, but 128 KB flash / 16 KB RAM (vs. 256 KB / 32 KB), no LCD controller, and identical DSAD specs. | Suitable for cost-sensitive, lower-firmware-footprint applications where dual-channel sensor processing fits within 128 KB flash. | Choose R5F523E5MGNF#20 when firmware size is ≤128 KB and no future feature expansion is planned; R5F523E6MGNF#20 provides headroom for OTA updates and safety libraries. |
Compared with R5F523E6MDNF#20, R5F523E6MGNF#20 trades extended temperature rating for lower cost and same core sensing capability; versus R5F523E5MGNF#20, it doubles flash/RAM to accommodate complex IEC 60730 diagnostics and multi-sensor fusion algorithms without external memory.
Availability
R5F523E6MGNF#20 is available at Aetrix Electronics and suitable for industrial weigh scales, temperature transmitters, and strain-gauge pressure sensors requiring stable component supply across multi-year production cycles.
Supply support for R5F523E6MGNF#20 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-B Group - including R5F523E6MGNF#20 - was designed specifically for high-accuracy sensor signal conditioning in industrial instrumentation, integrating metrology-grade analog peripherals with functional safety features.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E6MGNF#20?
The R5F523E6MGNF#20 supports a maximum delta-sigma ADC sampling rate of 31.25 kSPS at ±5-V input range. This rate is achieved with fourth- or fifth-order sinc filtering and enables simultaneous 50/60 Hz noise rejection - critical for stable measurements in electrically noisy industrial environments. The R5F523E6MGNF#20 does not support the 125 kSPS mode found in 'L'/'K'-suffix variants.
Does R5F523E6MGNF#20 include a built-in voltage reference for the ADC?
Yes, the R5F523E6MGNF#20 integrates a 2.5 V voltage reference with 8 ppm/°C temperature drift (–40 to +85°C) and ±10 mA output capability. This reference can be used directly by both the 24-bit delta-sigma ADC and the 12-bit SAR ADC. The R5F523E6MGNF#20 also supports external reference inputs for higher precision or ratiometric configurations.
Can R5F523E6MGNF#20 drive a 4-wire load cell without external components?
Yes, the R5F523E6MGNF#20 includes two matched excitation current sources (IEXC0/IEXC1) programmable from 50 to 1000 µA with ±0.2% matching and 5 ppm/°C drift matching - sufficient to directly bias 350 Ω or 1 kΩ 4-wire load cells. Its ±5-V HVAIN inputs accept the resulting mV/V output, and the rail-to-rail PGA eliminates need for external amplification in most cases.
Is R5F523E6MGNF#20 qualified for IEC 60730 Class B compliance?
Yes, the R5F523E6MGNF#20 includes hardware-assisted IEC 60730 Class B diagnostics: A/D converter self-test, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT), RAM test assistance via Data Operation Circuit (DOC), and analog input disconnect detection. These features reduce software certification burden for safety-critical industrial equipment.
What communication interfaces are available on R5F523E6MGNF#20?
The R5F523E6MGNF#20 provides CAN 2.0B (1 Mbps), six SCI channels (asynchronous/clock-synchronous/smart card), one I²C bus interface (up to 400 kbps), and one RSPI channel (up to 16 Mbps). It does not include an LCD controller or USB - consistent with its 'M' suffix designation for non-LCD, 31.25 kSPS, ±5-V sensing focus.
R5F523E6MGNF#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- 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:
- 13
- 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 6x12b SAR, 4x24b Sigma-Delta; D/A 1x16b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F523E6MGNF#20 FAQ
1.How can I place an order for R5F523E6MGNF#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E6MGNF#20 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 R5F523E6MGNF#20 reliable?
The price and inventory of R5F523E6MGNF#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E6MGNF#20 is usually 5 days.
3.What payment methods are accepted for R5F523E6MGNF#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E6MGNF#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E6MGNF#20?
R5F523E6MGNF#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E6MGNF#20 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 R5F523E6MGNF#20?
For technical support, including R5F523E6MGNF#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E6MGNF#20 requirements.
6.How does Aetrix verify that R5F523E6MGNF#20 is sourced from the original manufacturer or authorized distributors?
All R5F523E6MGNF#20 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 R5F523E6MGNF#20 meets industry standards.
7.What is the process for return or replacement of R5F523E6MGNF#20?
All R5F523E6MGNF#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E6MGNF#20, 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 R5F523E6MGNF#20 part is unused and in its original packaging.
Return procedure for R5F523E6MGNF#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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