Renesas R5F523E5MDFL#30
- Part No.:
- R5F523E5MDFL#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F523E5MDFL#30.pdf
- Description:
- 32BIT MCU RX23E-B 128K LFQFP48 T
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F523E5MDFL#30 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision analog measurement in industrial sensing applications. It integrates a 24-bit delta-sigma A/D converter with 31.25 kSPS max sampling rate, ±5-V input range, rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), on-chip excitation current sources (50–1000 µA), and 128 KB flash/16 KB SRAM. It operates at up to 32 MHz across –40°C to +85°C and supports IEC60730-compliant self-diagnostic functions.
For engineers reviewing the R5F523E5MDFL#30 datasheet, R5F523E5MDFL#30 pinout, R5F523E5MDFL#30 application, or R5F523E5MDFL#30 equivalent, key selection criteria include its 31.25 kSPS delta-sigma ADC performance, ±5-V HVAIN capability, integrated PGA and excitation sources for bridge sensor interfacing, CAN 2.0B compliance, and support for low-power software standby with LPT operation.
Technical Context
The R5F523E5MDFL#30 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 64 DMIPS @ 32 MHz, and memory protection unit (MPU) - enabling deterministic real-time control in safety-aware systems. Its analog subsystem centers on the DSADB unit synchronized to PCLKC (≤16 MHz), featuring fourth- and fifth-order sinc digital filters, simultaneous 50/60 Hz rejection at 10/54 SPS, and offset/gain error calibration.
Digital integration includes ELC-driven event-triggered peripheral coordination (e.g., MTU-triggered ADC start), four-channel DMAC with block/chain transfer, and RSCAN CAN module supporting 1 Mbps with 16 message boxes. Clock management provides independent ICLK/PCLKA–PCLKD domains, CAC-based frequency accuracy monitoring, and dedicated IWDT oscillator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC Harvard architecture with 5-stage pipeline, 64 DMIPS @ 32 MHz |
| Max Operating Frequency | 32 MHz (VCC ≥ 2.7 V); enables real-time loop execution ≤31.25 µs per cycle |
| Flash / SRAM / Data Flash | 128 KB on-chip flash (no wait states @ 32 MHz), 16 KB SRAM, 8 KB data flash (1M erase/write cycles) |
| 24-bit Delta-Sigma ADC | 31.25 kSPS max sampling rate, ±5-V input range via HVAIN pins, 24-bit effective resolution @ 3.8 SPS |
| PGA & Excitation Sources | Rail-to-rail PGA (gain = 1–128), two programmable excitation current sources (50–1000 µA, ±0.2% matching) |
| Communication Interfaces | 1× CAN 2.0B (1 Mbps), 6× SCIg (asynchronous/clock-sync/smart card), 1× RIIC (400 kbps), 1× RSPI (16 Mbps) |
| Operating Temperature | –40°C to +85°C (D-version), qualified for industrial ambient conditions without derating |
Pinout & Package
Package: PLQP0048KB-B - 48-pin LFQFP, 7 mm × 7 mm, 0.5 mm pitch, exposed pad (thermal enhancement).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Core logic supply (1.8–5.5 V); separate AVCC0 (4.5–5.5 V) required for 12-bit ADC and analog front end |
| HVAIN0–HVAIN3 | Analog input (high-voltage) | ±5-V differential/single-ended inputs; internally routed to DSADB with disconnect detection assist |
| IEXC0 / IEXC1 | Excitation current output | Programmable 50–1000 µA sourcing; matched drift (5 ppm/°C) enables stable bridge biasing |
| AVCC0 / AVSS0 | Analog power / ground | Dedicated 4.5–5.5 V analog domain; powers DSADB, S12ADE, PGA, VREF, and excitation sources |
| MTU0–MTU5 | Timer waveform I/O | 16-bit multi-function timer outputs; support complementary PWM, phase counting, and ADC trigger generation |
| TXD0 / RXD0 | SCI0 serial interface | Asynchronous UART interface; bit-rate modulation reduces communication errors in noisy environments |
| CANH / CANL | CAN bus differential pair | ISO 11898-1 compliant physical layer; supports 1 Mbps data rate with built-in arbitration and error handling |
Key Features
| Feature | Design Value |
|---|---|
| Delta-sigma ADC with sinc filtering | Configurable fourth/fifth-order sinc filters enable simultaneous 50/60 Hz rejection at 10/54 SPS for AC-coupled sensor noise suppression |
| Integrated analog front end | On-chip 2.5 V voltage reference (8 ppm/°C drift), bias generator (VBIAS = (AVCC0+AVSS0)/2), and temperature sensor (±5°C accuracy) |
| IEC60730 safety support | Hardware-assisted RAM test (via DOC), A/D converter self-diagnostic, clock accuracy monitoring (CAC), and IWDT disconnect detection |
| Low-power operation modes | Software standby mode with LPT running on sub-clock (32.768 kHz); enables wake-up from deep sleep in <10 µs |
| Event Link Controller (ELC) | Direct hardware linking of peripherals (e.g., MTU overflow → ADC conversion start) eliminates CPU interrupt latency and reduces power |
Applications
| Industrial Load Cell Interface | High-Accuracy Pressure Transmitter |
|---|---|
Use Scenario: Digital load cell signal conditioning in weigh scales and batching systems requiring <0.01% full-scale linearity. IC Role / Device Role / Timing Role: Primary analog acquisition MCU; performs PGA-gain scaling, delta-sigma conversion, excitation current sourcing, and CAN-based fieldbus reporting. Use Value: Integrated ±5-V HVAIN inputs and 31.25 kSPS sampling eliminate external signal conditioning; 1 ppm/°C PGA gain drift ensures thermal stability over operating range. |
Use Scenario: Smart pressure transmitter with HART or CAN FD backhaul in process automation. IC Role / Device Role / Timing Role: Sensor fusion controller; acquires bridge output via DSADB, computes compensated pressure using FPU, and communicates via CAN. Use Value: On-chip excitation sources with ±0.2% current matching reduce bridge imbalance error; built-in VREF (2.5 V, 8 ppm/°C) stabilizes reference for ratiometric measurements. |
| Energy Meter Front-End | Motor Control Current Sensing |
Use Scenario: Class 0.2 polyphase energy meter with shunt or CT-based current sensing and harmonic analysis. IC Role / Device Role / Timing Role: High-resolution metrology engine; digitizes voltage/current channels, applies digital filtering, and computes RMS/active/reactive power. Use Value: Simultaneous 50/60 Hz rejection at 10/54 SPS enables accurate fundamental measurement in grid-distorted environments without external notch filters. |
Use Scenario: Inverter-based motor drive with isolated current sensing and real-time torque control loop. IC Role / Device Role / Timing Role: Analog acquisition node; samples isolated current feedback via ±5-V inputs, triggers PWM updates via ELC-linked MTU, and runs FPU-based PI control. Use Value: 31.25 kSPS sampling supports 10 kHz current loop bandwidth; low-latency ELC path (<100 ns jitter) synchronizes ADC capture to PWM dead-time events. |
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 |
|---|---|---|---|
| R5F523E5NDFP | 100-pin LFQFP package; adds RTC, LCD driver, and 2 extra DSADB differential channels | Suitable for panel-mounted meters with display and calendar-based logging | Select when needing RTC, larger I/O count, or LCD interface - not drop-in compatible due to pinout and package size |
| ADUCM3029 | ARM Cortex-M3 core; 24-bit ΣΔ ADC (1.8 kSPS), no integrated excitation sources or CAN | Better for low-power battery-operated sensors where CAN is replaced by SPI/I2C to host MCU | Choose for ultra-low active current (<380 µA/MHz) and cryptographic acceleration; requires external excitation and CAN transceiver |
Compared with R5F523E5NDFP, the R5F523E5MDFL#30 offers identical analog performance in a smaller 48-pin footprint but omits RTC and LCD - ideal for space-constrained sensor nodes. Versus ADUCM3029, it delivers higher ADC throughput and integrated CAN/excitation at the cost of higher active power and non-ARM ISA.
Availability
R5F523E5MDFL#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart transmitters, and energy meter front-ends requiring stable component supply, long-term lifecycle assurance, and guaranteed -40°C to +85°C operation.
Supply support for R5F523E5MDFL#30 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 markets.
The RX23E-B Group - including R5F523E5MDFL#30 - was designed specifically for high-accuracy sensor signal conditioning in industrial measurement equipment, integrating metrology-grade analog peripherals with real-time MCU control.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5MDFL#30?
The R5F523E5MDFL#30 supports a maximum delta-sigma ADC sampling rate of 31.25 kSPS. This is achieved with modulator clock fMOD = 4 MHz and appropriate sinc filter configuration. At lower data rates (e.g., 10 or 54 SPS), the device provides simultaneous 50 Hz/60 Hz rejection for AC-line noise suppression - a key capability confirmed in the DSADB functional specification.
Does R5F523E5MDFL#30 include an integrated CAN controller, and what standard does it support?
Yes, R5F523E5MDFL#30 integrates one RSCAN CAN module compliant with ISO 11898-1, supporting both standard and extended frames at up to 1 Mbps. It includes 16 message boxes with hardware acceptance filtering and automatic retransmission. The CAN peripheral operates independently of the CPU via ELC-triggered events, enabling low-latency response without software overhead.
What analog input voltage range is supported by the HVAIN pins on R5F523E5MDFL#30?
The HVAIN pins on R5F523E5MDFL#30 support a ±5-V input range, as indicated by the "M" suffix in the part number per Figure 1.1. This allows direct connection to industrial-level bridge sensors and transducers without external level-shifting. Input disconnect detection assist and fault monitoring are hardware-supported for system reliability.
Can R5F523E5MDFL#30 operate with a single supply voltage, and what is the valid range?
Yes, R5F523E5MDFL#30 operates from a single VCC supply ranging from 1.8 V to 5.5 V. However, the analog domain requires AVCC0 = 4.5–5.5 V for full 12-bit ADC and DSADB performance. When only the 12-bit S12ADE is active, AVCC0 may be reduced to 1.8–5.5 V - but the DSADB, PGA, and excitation sources require the higher AVCC0 range for specified accuracy.
Is the R5F523E5MDFL#30 pin-compatible with other RX23E-B group MCUs such as R5F523E5LDFP?
No, R5F523E5MDFL#30 is not pin-compatible with R5F523E5LDFP. The former uses a 48-pin LFQFP (PLQP0048KB-B), while the latter uses a 100-pin LFQFP (PLQP0100KB-B). Pin counts, pitch, and signal mapping differ significantly; migration requires PCB redesign. Functional compatibility exists at the software/peripheral level, but hardware layout is not interchangeable.
R5F523E5MDFL#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- 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:
- 17
- 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 8x12b SAR, 6x24b Sigma-Delta; D/A 1x16b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F523E5MDFL#30 FAQ
1.How can I place an order for R5F523E5MDFL#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5MDFL#30 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 R5F523E5MDFL#30 reliable?
The price and inventory of R5F523E5MDFL#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5MDFL#30 is usually 5 days.
3.What payment methods are accepted for R5F523E5MDFL#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5MDFL#30 transactions.
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4.How is shipping managed for R5F523E5MDFL#30?
R5F523E5MDFL#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5MDFL#30 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 R5F523E5MDFL#30?
For technical support, including R5F523E5MDFL#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5MDFL#30 requirements.
6.How does Aetrix verify that R5F523E5MDFL#30 is sourced from the original manufacturer or authorized distributors?
All R5F523E5MDFL#30 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 R5F523E5MDFL#30 meets industry standards.
7.What is the process for return or replacement of R5F523E5MDFL#30?
All R5F523E5MDFL#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5MDFL#30, 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 R5F523E5MDFL#30 part is unused and in its original packaging.
Return procedure for R5F523E5MDFL#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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