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Renesas R5F523E6BGFM#50
- Part No.:
- R5F523E6BGFM#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F523E6BGFM#50.pdf
- Description:
- 32BIT MCU RX23E-B 256K LFQFP64 -
- Quantity:
- Payment:
- Shipping:
Inventory:4,151
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Product details
Overview
R5F523E6BGFM#50 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision industrial sensing and measurement, featuring a 32-MHz CPU core, 256-KB on-chip flash, 32-KB SRAM, 8-KB data flash, one 24-bit delta-sigma ADC with 125-kSPS max sampling rate and ±5-V input range, and integrated programmable gain instrumentation amplifier (PGA) with rail-to-rail operation. It supports CAN, SCI, I²C, RSPI, and real-time clock functions.
For engineers reviewing the R5F523E6BGFM#50 datasheet, R5F523E6BGFM#50 pinout, R5F523E6BGFM#50 application, or R5F523E6BGFM#50 equivalent, this MCU is selected for embedded systems requiring simultaneous high-resolution analog acquisition, deterministic real-time control, low-power operation across –40°C to +105°C, and functional safety support per IEC 60730.
Technical Context
The R5F523E6BGFM#50 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, 32-bit floating-point unit (IEEE 754 compliant), and memory protection unit (MPU). Its analog subsystem centers on a dedicated 24-bit delta-sigma ADC (DSADB) synchronized to PCLKC (up to 16 MHz), supported by dual excitation current sources (50–1000 µA), ±5-V HVAIN inputs, and configurable sinc filters for 50/60 Hz rejection.
Digital control is enabled via six-channel MTU2a timers with complementary PWM, event link controller (ELC) for interrupt-free peripheral chaining, and four-channel DMAC for autonomous data movement. Clock management includes PLL, sub-clock (32.768 kHz), and independent IWDT oscillator - all configurable for IEC 60730 self-test sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit, 32 MHz max - delivers 64 DMIPS with single-cycle instruction execution and IEEE 754 FPU for sensor linearization and calibration math. |
| Memory | 256 KB flash (no-wait at 32 MHz), 32 KB SRAM, 8 KB data flash - enables field-upgradable firmware and persistent calibration storage with 1M erase cycles. |
| Delta-Sigma ADC | 24-bit resolution, 125 kSPS max, ±5-V input range - supports direct connection to strain gauges and load cells without external signal conditioning. |
| PGA | Rail-to-rail, gain = 1–128, offset drift 4 nV/°C (gain ≥64) - maintains precision across temperature in weigh scale and pressure transducer interfaces. |
| Communication | 1× CAN (ISO 11898-1, up to 1 Mbps), 6× SCI, 1× I²C, 1× RSPI - provides robust industrial bus connectivity and multi-protocol sensor aggregation. |
| Operating Range | –40°C to +105°C, 1.8–5.5 V supply - qualified for under-hood automotive sensors and factory-floor PLC modules. |
| Safety Support | IEC 60730-compliant features: RAM test assist (DOC), A/D self-diagnostic, clock accuracy measurement (CAC), IWDT disconnect detection - reduces functional safety certification effort. |
Pinout & Package
Package: PLQP0064KB-C - 64-pin LFQFP, 10 × 10 mm, 0.5 mm pitch, lead-free, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply / Ground | Core and I/O supply pins; decoupling required per Renesas layout guidelines to maintain ADC SNR and EMI immunity. |
| AVCC0, AVSS0 | Analog power / Ground | Independent analog domain supply (4.5–5.5 V); separation prevents digital noise coupling into 24-bit ADC front-end. |
| HVAIN0–HVAIN3 | Analog input | ±5-V tolerant differential inputs; enable direct interface to bridge sensors without external level-shifting or attenuation. |
| EXC0, EXC1 | Excitation current output | Programmable 50–1000 µA current sources with ±0.2% matching - drive RTDs or resistive sensors with minimal thermal EMF error. |
| MTU0–MTU5 | PWM/complementary output | Six 16-bit timer channels supporting phase-counting, reset-synchronized PWM, and A/D trigger generation - suitable for motor control feedback loops. |
| TXD0/RXD0, TXD1/RXD1 | SCI serial I/O | Asynchronous UART pins with bit-rate modulation; support isolated RS-485 gateways and smart sensor command protocols. |
| CANH/CANL | CAN bus differential pair | Integrated ISO 11898-1 physical layer interface; requires external termination and common-mode choke for EMC compliance. |
| RESET#, IRQ0–IRQ7 | Reset / External interrupt | NMI-capable interrupt inputs; support fast response to safety-critical events like overcurrent or temperature fault signals. |
Key Features
| Feature | Design Value |
|---|---|
| 24-bit delta-sigma ADC with sinc filtering | Enables simultaneous 50/60 Hz line rejection at 10 or 54 SPS - critical for AC-powered industrial weighing systems. |
| On-chip voltage reference (2.5 V, 8 ppm/°C) | Stable reference for ADC and DAC eliminates need for external precision reference ICs, reducing BOM count and layout area. |
| Event Link Controller (ELC) | Allows hardware-triggered ADC conversions and PWM updates without CPU intervention - lowers latency and improves determinism in closed-loop control. |
| IEC 60730 self-test assist functions | Hardware-accelerated RAM test (DOC), A/D disconnect detection, and clock accuracy monitoring reduce software validation burden for Class B certification. |
| Low-power timer (LPT) in software standby | Operates from sub-clock (32.768 kHz) during deep sleep - enables periodic wake-up for sensor polling while maintaining µA-level system current. |
Applications
| Industrial Weigh Scale | Pressure Transmitter |
|---|---|
Use Scenario: High-accuracy weight measurement in platform scales and hopper load cells using full-bridge strain gauge sensors. IC Role / Device Role / Timing Role: Primary signal acquisition and processing unit; performs PGA gain selection, 24-bit ADC conversion, digital filtering, and CAN-based weight reporting. Use Value: ±5-V HVAIN inputs and 125-kSPS sampling enable direct bridge interface with <1 µV RMS noise floor; excitation current matching (±0.2%) ensures stable RTD compensation. |
Use Scenario: Smart 4–20 mA pressure transmitter with HART communication for process automation in chemical plants. IC Role / Device Role / Timing Role: Analog front-end controller and protocol stack processor; conditions piezoresistive sensor output, executes linearization, and manages HART modem via SCI. Use Value: Integrated 16-bit DAC drives 4–20 mA loop; 24-bit ADC resolves <0.01% FS pressure changes; IEC 60730 diagnostics satisfy SIL-2 functional safety requirements. |
| Energy Metering Sensor Node | Motor Control Feedback Module |
Use Scenario: DIN-rail mounted electricity meter auxiliary sensor for voltage/current harmonic analysis and tamper detection. IC Role / Device Role / Timing Role: High-fidelity analog acquisition engine; samples CT/PT outputs at 125 kSPS, applies fifth-order sinc filter, computes RMS and THD in real time. Use Value: Simultaneous 50/60 Hz rejection at 10 SPS eliminates mains interference; ±5-V input range accommodates 1:1000 CT secondary scaling without external op-amps. |
Use Scenario: Compact BLDC motor position/speed feedback module for HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Real-time motor control co-processor; reads Hall/encoder signals via MTU2a, generates 3-phase PWM, and monitors phase currents via 12-bit S12AD. Use Value: Six-channel MTU2a supports complementary PWM with dead-time insertion; ELC synchronizes ADC sampling to PWM center-aligned triggers - reduces torque ripple below 2%. |
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 |
|---|---|---|---|
| R5F523E5BGFM#50 | 128 KB flash, 16 KB SRAM, same package and peripherals - lower memory capacity but identical analog performance and timing specs. | Suitable for cost-sensitive designs where firmware footprint <128 KB and calibration data fits in reduced RAM. | Select when application code size and runtime data requirements fit within 128 KB/16 KB, preserving identical signal chain fidelity and thermal behavior. |
| R5F523E6KGFM#50 | Same 256 KB/32 KB memory, but ±10-V HVAIN input range and no LCD driver - extends analog input headroom for high-voltage sensor interfaces. | Required for applications measuring >±5 V signals (e.g., battery cell monitoring, high-side current shunts) without external attenuators. | Choose when sensor output exceeds ±5 V and board space prohibits external scaling circuitry - maintains identical MCU timing, safety, and communication capabilities. |
Compared with R5F523E5BGFM#50, the R5F523E6BGFM#50 provides double flash/SRAM for complex control algorithms and OTA updates; versus R5F523E6KGFM#50, it trades ±10-V input range for compatibility with legacy ±5-V industrial sensors - enabling drop-in replacement in existing 5-V analog designs.
Availability
R5F523E6BGFM#50 is available at Aetrix Electronics and suitable for industrial weigh scale systems, pressure transmitter modules, and energy metering sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F523E6BGFM#50 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 management solutions for industrial, automotive, and IoT markets.
The RX23E-B Group targets high-accuracy measurement applications, integrating precision analog front-ends with real-time MCU control to replace discrete signal chains in industrial sensors and smart transmitters.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E6BGFM#50?
The R5F523E6BGFM#50 supports a maximum sampling rate of 125 kSPS for its 24-bit delta-sigma ADC (DSADB) when operating with a 4-MHz modulator clock. This rate is achievable with lower-order sinc filters (e.g., fourth-order) and is specified for ±5-V input range configurations. At 31.25 kSPS, higher-order filtering enables enhanced 50/60 Hz rejection for precision weighing applications.
Does R5F523E6BGFM#50 include an integrated voltage reference, and what is its stability?
Yes, the R5F523E6BGFM#50 integrates a precision 2.5-V voltage reference with a temperature drift of 8 ppm/°C over –40°C to +85°C. This reference is used internally by the 24-bit delta-sigma ADC and 16-bit DAC, and can also be made available externally. Its low drift ensures consistent ADC full-scale accuracy across industrial temperature ranges without requiring external reference ICs.
Can R5F523E6BGFM#50 operate in the extended temperature range of –40°C to +105°C?
Yes, the R5F523E6BGFM#50 is a G-version device rated for operation from –40°C to +105°C. This qualification is confirmed in Table 1.3 of the datasheet (R01DS0402EJ0100), where the part number suffix "G" denotes the extended temperature grade. The analog performance specifications - including PGA offset drift and ADC effective resolution - are guaranteed across this full range.
How many excitation current sources does R5F523E6BGFM#50 provide, and what are their key specifications?
The R5F523E6BGFM#50 provides two fully programmable excitation current sources (IEXC0 and IEXC1), each configurable from 50 µA to 1000 µA in discrete steps. They feature ±0.2% current matching and 5 ppm/°C drift matching - critical for accurate 3- or 4-wire RTD measurements. These sources connect directly to the analog multiplexer and support disconnect detection for open-sensor fault handling.
Is the R5F523E6BGFM#50 pin-compatible with other members of the RX23E-B Group in the same package?
Yes, all RX23E-B Group devices in the PLQP0064KB-C (64-pin LFQFP) package share identical pinouts, including R5F523E6BGFM#50, R5F523E6KGFM#50, and R5F523E5BGFM#50. Pin-for-pin compatibility extends to power, analog, digital I/O, and peripheral signal assignments - enabling hardware reuse across memory, analog range, and temperature grade variants without PCB redesign.
R5F523E6BGFM#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RX23E-B
- Packaging:
- Tape & Reel (TR)
- 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:
- 30
- 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 8x12b SAR, 8x24b Sigma-Delta; D/A 1x16b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F523E6BGFM#50 FAQ
1.How can I place an order for R5F523E6BGFM#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E6BGFM#50 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 R5F523E6BGFM#50 reliable?
The price and inventory of R5F523E6BGFM#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E6BGFM#50 is usually 5 days.
3.What payment methods are accepted for R5F523E6BGFM#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E6BGFM#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E6BGFM#50?
R5F523E6BGFM#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E6BGFM#50 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 R5F523E6BGFM#50?
For technical support, including R5F523E6BGFM#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E6BGFM#50 requirements.
6.How does Aetrix verify that R5F523E6BGFM#50 is sourced from the original manufacturer or authorized distributors?
All R5F523E6BGFM#50 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 R5F523E6BGFM#50 meets industry standards.
7.What is the process for return or replacement of R5F523E6BGFM#50?
All R5F523E6BGFM#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E6BGFM#50, 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 R5F523E6BGFM#50 part is unused and in its original packaging.
Return procedure for R5F523E6BGFM#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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