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Renesas R5F523E5BDFM#10
- Part No.:
- R5F523E5BDFM#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F523E5BDFM#10.pdf
- Description:
- 32BIT MCU RX23E-B 128K LFQFP64 F
- Quantity:
- Payment:
- Shipping:
Inventory:4,875
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Product details
Overview
R5F523E5BDFM#10 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision analog measurement in industrial sensor nodes and smart transmitters. It integrates a 24-bit delta-sigma ADC (125 kSPS max, ±5 V input range), rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), on-chip excitation current sources (50–1000 µA), and a 1.8–5.5 V single-supply operation - enabling direct interface with strain gauges, RTDs, and load cells without external signal conditioning. The device operates at up to 32 MHz and includes CAN, SCI, I²C, and RSPI interfaces for fieldbus connectivity.
For engineers reviewing the R5F523E5BDFM#10 datasheet, R5F523E5BDFM#10 pinout, R5F523E5BDFM#10 application, or R5F523E5BDFM#10 equivalent, this MCU delivers verified 24-bit measurement accuracy, integrated analog front-end diagnostics per IEC 60730, and deterministic real-time control via ELC-triggered peripheral coordination - critical for certified industrial instrumentation and process control designs.
Technical Context
The R5F523E5BDFM#10 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 64 DMIPS @ 32 MHz, and memory protection unit (MPU) for safety-critical firmware partitioning. Its analog subsystem centers on the DSADB module: a 24-bit delta-sigma ADC with fourth/fifth-order sinc filters, simultaneous 50/60 Hz rejection at 10/54 SPS, and ±10-V-capable HVAIN pins (though this variant supports ±5 V per package coding).
Timing and power management include three low-power modes (sleep, deep sleep, software standby), LPT running during standby, and independent watchdog timer (IWDT) driven by dedicated 15-kHz oscillator. Clock generation supports main (1–20 MHz), sub (32.768 kHz), and PLL (4–8 MHz input) sources, with CAC for frequency accuracy validation - essential for metrology-grade timing integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit, 32 MHz max, 64 DMIPS, IEEE 754 FPU, MPU |
| Flash / RAM / Data Flash | 128 KB / 16 KB / 8 KB (1M erase/write cycles) |
| 24-bit Delta-Sigma ADC | 8-channel differential input, 125 kSPS max, ±5 V input range, 24-bit effective resolution @ 3.8 SPS |
| PGA & Excitation | Rail-to-rail PGA (gain = 1–128), two programmable excitation current sources (50–1000 µA, ±0.2% matching) |
| Analog Reference & Diagnostics | 2.5 V ±8 ppm/°C reference, ±10-V HVAIN pins, A/D disconnect detection, VREF fault detection |
| Communication Interfaces | CAN (ISO 11898-1, 1 Mbps), 6× SCI, 1× I²C (400 kbps), 1× RSPI (16 Mbps) |
| Package & Temp Range | PLQP0064KB-C (64-pin LFQFP, 10 × 10 mm, 0.5 mm pitch), –40°C to +85°C |
Pinout & Package
Package: PLQP0064KB-C - 64-pin Low-Profile Quad Flat Package, 10 × 10 mm body, 0.5 mm lead pitch, exposed thermal pad, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Core and I/O supply (1.8–5.5 V); separate AVCC0 (4.5–5.5 V) required for 12-bit ADC precision |
| HVAIN0–HVAIN3 | Analog input | ±5 V tolerant high-voltage inputs for direct connection to bridge sensors; internal PGA selectable per channel |
| IEXC0 / IEXC1 | Excitation current output | Programmable current sources (50–1000 µA) with ±0.2% matching for RTD/strain gauge biasing |
| DSAD_VREFH / DSAD_VREFL | Delta-sigma ADC reference | External reference inputs supporting ratiometric or absolute measurements; internal 2.5 V reference available |
| MTU0–MTU5 | PWM / capture / trigger outputs | Six 16-bit timer channels support complementary PWM, phase counting, and ELC-triggered ADC start |
| SCI0–SCI9 / RSPI / RIIC | Serial interface signals | Dedicated pins for asynchronous/clock-sync SCI, RSPI master/slave, and I²C bus communication |
| RST# / RES# | Reset input | Active-low hardware reset with internal pull-up; supports power-on reset and voltage monitoring reset |
Key Features
| Feature | Design Value |
|---|---|
| IEC 60730 Class B Support | Integrated self-test functions: RAM test assist (DOC), clock accuracy check (CAC), IWDT disconnect detection, ADC offset/gain calibration |
| ELC-Driven Peripheral Coordination | Enables timer-triggered ADC conversion, PWM update, or DAC output without CPU wake-up - reducing latency and power in sensor polling |
| Simultaneous 50/60 Hz Rejection | Configurable sinc filter modes achieve >100 dB rejection at line frequencies (10/54 SPS output rates), critical for AC-coupled industrial environments |
| Low-Power Analog Operation | LPT runs during software standby; DSAD supports low-speed modulator clock (≥125 kHz) for <100 µA analog subsystem current at 3.8 SPS |
| High-Voltage Input Protection | HVAIN pins tolerate ±10 V with internal fault detection; voltage detector (VDET) monitors AVCC0, DSAD inputs, reference, and HVCOM |
Applications
| Industrial Process Transmitter | Smart Load Cell Interface |
|---|---|
Use Scenario: High-accuracy 4–20 mA loop-powered transmitter for pressure, temperature, or flow sensing in hazardous areas. IC Role / Device Role / Timing Role: Primary measurement controller with integrated 24-bit DSAD, PGA, excitation, and CAN/RS485 (via SCI) for HART or Fieldbus communication. Use Value: Eliminates external signal conditioner and reference ICs; ±5 V HVAIN and 125 kSPS sampling enable fast step-response diagnostics per IEC 61508 SIL-2 requirements. |
Use Scenario: Digital weighing terminal interfacing four-wire strain gauge bridges with temperature compensation. IC Role / Device Role / Timing Role: Analog front-end processor performing ratiometric measurement, cold-junction compensation (via internal TEMPS), and real-time filtering. Use Value: Dual excitation sources (IEXC0/IEXC1) drive bridge and RTD simultaneously; sinc filter + 50/60 Hz rejection ensures stable readings near motors or inverters. |
| Programmable Logic Controller I/O Module | Energy Meter Sensor Hub |
Use Scenario: Modular PLC analog input card supporting multiple sensor types (RTD, thermocouple, voltage) with configurable scaling and linearization. IC Role / Device Role / Timing Role: Dedicated measurement SoC handling sensor excitation, isolation-coupled signal acquisition, and local preprocessing before SPI transfer to main CPU. Use Value: On-chip 12-bit S12AD (1.4 µs conversion) handles fast control loops; DSAD provides high-resolution logging - both share same calibration data stored in E2 DataFlash. |
Use Scenario: Sub-metering node aggregating voltage, current, and power quality data from CT/shunt sensors in commercial buildings. IC Role / Device Role / Timing Role: Metrology engine performing simultaneous voltage/current sampling, harmonic analysis, and RMS calculation using FPU-accelerated algorithms. Use Value: 24-bit DSAD with programmable data rate (3.8 SPS–125 kSPS) enables adaptive oversampling for Class 0.2 accuracy; CRC calculator validates firmware and metering data integrity. |
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 |
|---|---|---|---|
| R5F523E5KDFM#10 | Same package and memory, but ±10 V HVAIN input range (vs. ±5 V), no LCD driver | Required for direct ±10 V sensor interfaces (e.g., high-output piezoresistive sensors) without external attenuation | Select when full ±10 V input capability is needed; otherwise R5F523E5BDFM#10 reduces BOM cost and layout complexity |
| R5F523E5JDFN#10 | 80-pin LFQFP (PLQP0080KB-B), adds RTC, LCD driver, and 2 extra DSAD differential channels | Supports human-machine interface (LCD) and calendar-based logging; larger footprint accommodates more analog inputs | Choose for HMI-integrated devices or where RTC timestamping of measurements is mandatory |
Compared with R5F523E5KDFM#10 and R5F523E5JDFN#10, the R5F523E5BDFM#10 offers optimal balance of precision analog integration, compact 64-pin footprint, and industrial temperature grade - making it ideal for space-constrained, cost-sensitive transmitter modules requiring ±5 V sensor compatibility and CAN/SCI fieldbus support.
Availability
R5F523E5BDFM#10 is available at Aetrix Electronics and suitable for industrial process transmitters, smart load cell interfaces, and PLC analog I/O modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for safety-certified designs.
Supply support for R5F523E5BDFM#10 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 - with over 40 years of embedded systems expertise.
The RX23E-B Group targets high-accuracy industrial measurement, integrating metrology-grade analog peripherals (24-bit DSAD, PGA, excitation) with real-time MCU capabilities to replace discrete analog signal chains in certified instrumentation.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5BDFM#10?
The R5F523E5BDFM#10 supports a maximum sampling rate of 125 kSPS for its 24-bit delta-sigma ADC (DSADB). This rate is achievable with reduced effective resolution and specific sinc filter configurations; at 3.8 SPS, it achieves 24-bit effective resolution with gain = 1. The device also supports lower rates including 10 SPS and 54 SPS for simultaneous 50/60 Hz rejection - all confirmed in the R01DS0402EJ0100 datasheet Section 1.1.
Does R5F523E5BDFM#10 include an integrated voltage reference, and what is its accuracy?
Yes, the R5F523E5BDFM#10 includes an on-chip voltage reference with nominal output of 2.5 V, temperature drift of ±8 ppm/°C over –40°C to +85°C, and output current capability of ±10 mA. This reference is used by the 24-bit delta-sigma ADC and can be selected as DSAD_VREFH source. It is specified in the "Analog Front End (AFEA)" section of the R01DS0402EJ0100 datasheet (Page 6).
How many excitation current sources does R5F523E5BDFM#10 provide, and what are their key specifications?
The R5F523E5BDFM#10 provides two fully programmable excitation current sources (IEXC0 and IEXC1), each configurable 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 - enabling precise ratiometric measurements for RTDs and bridge sensors. These are documented in the "Analog Front End" section of the R01DS0402EJ0100 datasheet (Page 6).
Is the R5F523E5BDFM#10 pin-compatible with other RX23E-B group MCUs in the same package?
No - while R5F523E5BDFM#10 shares the PLQP0064KB-C (64-pin LFQFP) package with other RX23E-B variants like R5F523E5KDFM#10 and R5F523E5MDFM#10, pin functions differ across variants due to feature mapping (e.g., HVAIN count, LCD pins, RTC presence). Table 1.2 in the R01DS0402EJ0100 datasheet confirms functional differences even within identical packages, so PCB design must match the exact part number.
What communication interfaces are supported by R5F523E5BDFM#10, and which are available in the 64-pin package?
The R5F523E5BDFM#10 supports CAN (1 channel), SCI (6 channels), I²C (1 channel), and RSPI (1 channel) - all available in the 64-pin PLQP0064KB-C package. Per Table 1.2 of the R01DS0402EJ0100 datasheet, the 64-pin variant retains full CAN, RSPI, and RIIC functionality, though SCI count is reduced to 4 channels (SCI1, 5, 6, 8) versus 6 in 100-pin versions.
R5F523E5BDFM#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 30
- 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, 8x24b 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:
R5F523E5BDFM#10 FAQ
1.How can I place an order for R5F523E5BDFM#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5BDFM#10 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 R5F523E5BDFM#10 reliable?
The price and inventory of R5F523E5BDFM#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5BDFM#10 is usually 5 days.
3.What payment methods are accepted for R5F523E5BDFM#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5BDFM#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E5BDFM#10?
R5F523E5BDFM#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5BDFM#10 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 R5F523E5BDFM#10?
For technical support, including R5F523E5BDFM#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5BDFM#10 requirements.
6.How does Aetrix verify that R5F523E5BDFM#10 is sourced from the original manufacturer or authorized distributors?
All R5F523E5BDFM#10 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 R5F523E5BDFM#10 meets industry standards.
7.What is the process for return or replacement of R5F523E5BDFM#10?
All R5F523E5BDFM#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5BDFM#10, 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 R5F523E5BDFM#10 part is unused and in its original packaging.
Return procedure for R5F523E5BDFM#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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