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Renesas R5F523E5ADNF#00
- Part No.:
- R5F523E5ADNF#00
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F523E5ADNF#00.pdf
- Description:
- IC MCU 32BIT 128MB FLASH 40WFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,969
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Product details
Overview
R5F523E5ADNF#00 from Renesas is a 32-bit RXv2 core MCU optimized for high-precision analog measurement in industrial sensor systems, featuring dual 24-bit delta-sigma ADCs (DSAD0/DSAD1), rail-to-rail programmable gain instrumentation amplifiers (gain = 1–128), 2.5 V low-drift voltage reference (10 ppm/°C), four excitation current sources (50–1000 µA), and integrated CAN 2.0B interface. 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 harsh environments.
For engineers reviewing the R5F523E5ADNF#00 datasheet, R5F523E5ADNF#00 pinout, R5F523E5ADNF#00 application, or R5F523E5ADNF#00 equivalent, this device delivers verified 23-bit effective resolution at 7.6 SPS, simultaneous 50/60 Hz rejection, ±0.2% excitation current matching, and IEC60730-compliant self-diagnostic support - critical for functional safety in temperature monitoring and process control designs.
Technical Context
The R5F523E5ADNF#00 integrates two independent 24-bit delta-sigma A/D converters with fourth-order sinc filters, programmable gain instrumentation amplifiers, and dedicated analog front-end resources including bias voltage generation, low-side switch (10 Ω), and analog multiplexer routing. Its RXv2 CPU core executes at 32 MHz with 64 DMIPS, includes single-precision FPU (IEEE754), memory protection unit (MPU), and event link controller (ELC) for autonomous peripheral coordination without CPU wake-up.
It supports dual ADC synchronization, offset/gain calibration per channel, disconnect detection assist for DSAD inputs and excitation sources, and operates across –40°C to +85°C using a 1.8–5.5 V supply. The CAN module complies with ISO11898-1 at up to 1 Mbps, while SCI, RSPI, and RIIC interfaces enable multi-protocol connectivity in compact sensor nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC Harvard architecture, 32 MHz max, 64 DMIPS performance |
| Delta-Sigma ADC | Two 24-bit units, 23-bit effective resolution at 7.6 SPS, simultaneous 50/60 Hz rejection |
| PGA Gain Range | 1× to 128×, rail-to-rail input, 30 nVRMS noise (gain=128, 7.6 SPS) |
| Voltage Reference | 2.5 V output, 10 ppm/°C drift, ±10 mA drive capability |
| Excitation Current Sources | Four channels, 50–1000 µA programmable, ±0.2% matching, 5 ppm/°C drift matching |
| CAN Interface | One ISO11898-1 compliant channel, 1 Mbps data rate, 16 message boxes |
| Memory | 128 KB on-chip flash (no wait states at 32 MHz), 16 KB SRAM, 8 KB data flash (1M erase cycles) |
| Operating Temp | –40°C to +85°C (D-grade), supported by IEC60730 self-test functions |
Pinout & Package
Package: 40-pin HWQFN (PWQN0040KD-A), 6 × 6 mm, 0.5 mm pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN0–AIN11 | Analog input multiplexer terminals | Support up to six differential or 11 single-ended DSAD inputs; routed via AMUX to PGA or reference paths |
| REF0P/REF0N, REF1P/REF1N | Delta-sigma ADC reference inputs | Accept external or internal reference; enable dual independent reference configurations per DSAD unit |
| IEXC0–IEXC3 | Excitation current outputs | Drive RTD/thermistor bridges; each source independently programmable (50–1000 µA) with fault detection |
| LSW | Low-side switch output | 10 Ω max on-resistance, 30 mA max current; used for sensor power gating and current path control |
| REFOUT | Internal voltage reference output | 2.5 V reference buffered output; requires 0.47 µF capacitor to AVSS0 for stability |
| CRXD0/CTXD0 | CAN transceiver interface | Dedicated differential CAN bus pins supporting ISO11898-1 physical layer signaling |
| VCC/VSS, AVCC0/AVSS0 | Power supply domains | Separate digital and analog supplies enable noise isolation; AVCC0 supports 1.8–5.5 V operation for S12AD |
Key Features
| Feature | Design Value |
|---|---|
| Dual synchronized delta-sigma ADCs | Enables simultaneous sampling of primary and reference sensor paths for ratiometric accuracy and drift cancellation |
| Programmable excitation current matching | ±0.2% matching and 5 ppm/°C drift tracking between sources ensures stable bridge excitation across temperature |
| IEC60730-compliant diagnostics | Integrated RAM test assist, ADC disconnect detection, clock accuracy measurement (CAC), and IWDT self-check reduce certification effort |
| Event Link Controller (ELC) | Allows autonomous trigger chaining (e.g., timer → DSAD start → DMA transfer) without CPU intervention, reducing active power |
| Rail-to-rail PGA with low noise | 30 nVRMS input-referred noise at gain=128 enables sub-µV signal resolution in noisy industrial environments |
Applications
| Industrial Temperature Transmitter | Smart RTD Sensor Node |
|---|---|
Use Scenario: 4–20 mA loop-powered transmitter measuring Type K thermocouples in factory automation cabinets. IC Role / Device Role / Timing Role: Primary signal conditioner and CAN protocol handler; DSAD units digitize cold-junction compensation and thermocouple EMF with simultaneous 50/60 Hz rejection. Use Value: 23-bit effective resolution and ±5°C internal temperature sensor enable accurate cold-junction compensation without external sensors. | Use Scenario: Battery-operated wireless node monitoring three-wire Pt100 RTDs in HVAC ducts. IC Role / Device Role / Timing Role: Analog front-end controller and low-power host MCU; excitation sources drive RTD bridges while LPT wakes system every 10 s for measurement. Use Value: Four matched IEXC sources and 1 ppm/°C PGA gain drift ensure <0.1% total error over –25°C to +75°C operating range. |
| Process Control Analog Input Module | Functional Safety-Certified Sensor Hub |
Use Scenario: DIN-rail mounted PLC analog input card acquiring 8-channel thermocouple/RTD signals with HART communication. IC Role / Device Role / Timing Role: Per-channel AFE aggregator; DSAD0 processes primary sensor, DSAD1 monitors reference junction or diagnostic path. Use Value: Inter-unit A/D conversion synchronized start and ELC-triggered DMA enable deterministic multi-channel acquisition within 100 µs jitter. | Use Scenario: SIL2-certified burner management system requiring redundant temperature sensing and self-diagnostics. IC Role / Device Role / Timing Role: Safety monitor MCU executing IEC60730 Class B tests; uses DOC for RAM integrity checks and DSAD disconnect detection for open-wire fault identification. Use Value: Built-in offset/gain calibration, voltage detector (VDET), and excitation source disconnect assist satisfy Annex H diagnostic coverage requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision analog measurement applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS131M04IPBSR | 4-channel 24-bit delta-sigma ADC with built-in PGA and reference; no MCU core or CAN interface | Requires external microcontroller and CAN transceiver; lacks integrated diagnostics and excitation sources | Choose when discrete AFE + separate MCU offers better layout flexibility or cost scaling |
| R5F523E6ADNF#20 | Same package and pinout; upgrades to 256 KB flash, 32 KB SRAM, and full 6-channel DSAD differential input support | Enables larger firmware (e.g., Modbus TCP stack) and higher channel count sensor fusion without PCB change | Choose for future-proofing or when additional flash/SRAM or full DSAD channel count is required |
Compared with R5F523E5ADNF#00, the ADS131M04IPBSR provides higher channel density but demands external processing and safety logic, whereas R5F523E6ADNF#20 delivers direct upgrade path with identical footprint and enhanced memory and analog resources.
Availability
R5F523E5ADNF#00 is available at Aetrix Electronics and suitable for industrial temperature transmitters, smart RTD sensor nodes, process control analog input modules, and functional safety-certified sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F523E5ADNF#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 Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RX23E-A Group, including R5F523E5ADNF#00, was designed specifically for high-accuracy industrial sensor signal conditioning - integrating precision analog front-ends, functional safety features, and real-time control capabilities in a single chip.
FAQ
What is the maximum effective resolution achievable with the R5F523E5ADNF#00's delta-sigma ADCs?
The R5F523E5ADNF#00 achieves up to 23-bit effective resolution at 7.6 SPS with gain = 1 and full-scale output data rate, verified under specified conditions in the datasheet. This resolution is enabled by its fourth-order sinc filter, programmable oversampling ratio (32–65536), and on-chip offset/gain calibration. The R5F523E5ADNF#00 maintains this performance across its –40°C to +85°C operating range with minimal drift.
Does the R5F523E5ADNF#00 support simultaneous 50 Hz and 60 Hz noise rejection?
Yes, the R5F523E5ADNF#00 supports simultaneous 50 Hz and 60 Hz rejection at specific output data rates - notably 10 SPS and 54 SPS - using its fourth-order sinc filter architecture. This capability is explicitly confirmed in the DSAD section of the datasheet and applies directly to both DSAD0 and DSAD1 units in the R5F523E5ADNF#00. The R5F523E5ADNF#00 implements this via fixed-notch filter design, not adaptive algorithms.
How many excitation current sources does the R5F523E5ADNF#00 include, and what is their matching specification?
The R5F523E5ADNF#00 includes four independent excitation current sources (IEXC0–IEXC3), each programmable from 50 µA to 1000 µA in discrete steps. Their matching is specified as ±0.2% typical across temperature and supply voltage, with drift matching of 5 ppm/°C - critical for precision ratiometric measurements in RTD and strain gauge applications. This specification is guaranteed for the R5F523E5ADNF#00 across its full operating range.
Is the R5F523E5ADNF#00 pin-compatible with other members of the RX23E-A family?
Yes, the R5F523E5ADNF#00 shares identical pinout and package (40-pin HWQFN, PWQN0040KD-A) with R5F523E6ADNF#20, R5F523E5AGNF#20, and R5F523E6AGNF#20. All share the same mechanical footprint, power, ground, analog, and digital I/O pin assignments. However, peripheral channel counts differ - e.g., R5F523E5ADNF#00 supports 4 differential DSAD inputs versus 6 in R5F523E6ADNF#20 - though pin mapping remains consistent.
What functional safety features does the R5F523E5ADNF#00 provide for IEC60730 compliance?
The R5F523E5ADNF#00 includes hardware-assisted IEC60730 Class B compliance features: RAM test assistance via Data Operation Circuit (DOC), delta-sigma ADC disconnect detection, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT) with dedicated oscillator, and analog input fault detection. These are documented in the "Useful functions for IEC60730 compliance" section of the R5F523E5ADNF#00 datasheet and apply directly to this part number.
R5F523E5ADNF#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:
R5F523E5ADNF#00 FAQ
1.How can I place an order for R5F523E5ADNF#00 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5ADNF#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 R5F523E5ADNF#00 reliable?
The price and inventory of R5F523E5ADNF#00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5ADNF#00 is usually 5 days.
3.What payment methods are accepted for R5F523E5ADNF#00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5ADNF#00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E5ADNF#00?
R5F523E5ADNF#00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5ADNF#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 R5F523E5ADNF#00?
For technical support, including R5F523E5ADNF#00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5ADNF#00 requirements.
6.How does Aetrix verify that R5F523E5ADNF#00 is sourced from the original manufacturer or authorized distributors?
All R5F523E5ADNF#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 R5F523E5ADNF#00 meets industry standards.
7.What is the process for return or replacement of R5F523E5ADNF#00?
All R5F523E5ADNF#00 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5ADNF#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 R5F523E5ADNF#00 part is unused and in its original packaging.
Return procedure for R5F523E5ADNF#00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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