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Renesas R5F523E5LGBS#20
- Part No.:
- R5F523E5LGBS#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TFBGA
- Datasheet:
-
R5F523E5LGBS#20.pdf
- Description:
- 32BIT MCU RX23E-B 128K LFBGA100
- Quantity:
- Payment:
- Shipping:
Inventory:3,380
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Product details
Overview
R5F523E5LGBS#20 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision analog measurement in industrial sensing systems. It integrates a 24-bit delta-sigma ADC with ±10-V input capability, rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), 128 KB on-chip flash, 16 KB SRAM, and CAN 2.0B interface - all operating at up to 32 MHz across –40°C to +105°C.
For engineers reviewing the R5F523E5LGBS#20 datasheet, R5F523E5LGBS#20 pinout, R5F523E5LGBS#20 application, or R5F523E5LGBS#20 equivalent, key selection criteria include its 125 kSPS delta-sigma sampling rate, ±10-V HVAIN support, integrated excitation current sources (50–1000 µA), low-drift voltage reference (2.5 V, 8 ppm/°C), and IEC60730-compliant self-diagnostic features for safety-critical sensor nodes.
Technical Context
The R5F523E5LGBS#20 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 64 DMIPS @ 32 MHz, and memory protection unit (MPU) for deterministic real-time control. Its analog subsystem centers on the DSADB module synchronized to PCLKC (≤16 MHz), supporting fourth- and fifth-order sinc filtering, simultaneous 50/60 Hz rejection, and offset/gain calibration.
Digital integration includes ELC-triggered peripheral operation without CPU wake-up, four-channel DMAC for background data movement, and RSCAN CAN controller compliant with ISO 11898-1 (up to 1 Mbps). Power management supports software standby mode with LPT running off sub-clock (32.768 kHz) and three low-power states.
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 - enables full-speed no-wait flash access and real-time signal processing |
| 24-bit Delta-Sigma ADC | 8 differential inputs, 125 kSPS max sampling rate, ±10-V HVAIN pins, 24-bit effective resolution @ 3.8 SPS |
| PGA Performance | Rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), 11 nVRMS noise @ gain=128, 4 nV/°C offset drift |
| Voltage Reference | 2.5 V output, 8 ppm/°C drift over –40°C to +85°C, ±10 mA load capability |
| Excitation Current Sources | Two channels, 50–1000 µA programmable output, ±0.2% matching, 5 ppm/°C drift matching |
| Operating Temperature | –40°C to +105°C (G-version), qualified for extended industrial environments |
| Package | 100-pin TFBGA (PTBG0100KD-A), 5.5 × 5.5 mm, 0.5 mm pitch, 5-V tolerant I/O |
Pinout & Package
Package: PTBG0100KD-A - 100-pin TFBGA, 5.5 mm × 5.5 mm body, 0.5 mm pitch, 0.7 mm height, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Core logic supply (1.8–5.5 V); dedicated AVCC0 (4.5–5.5 V) for analog precision |
| HVAIN0–HVAIN3 | Analog input | ±10-V high-voltage differential inputs for strain gauge/load cell interfaces |
| IEXC0 / IEXC1 | Excitation current output | Programmable current sources (50–1000 µA) for RTD/bridge sensor biasing |
| VREFH / VREFL | ADC reference | External 2.5-V reference input pair; internal 2.5-V reference available |
| CANH / CANL | CAN bus interface | Differential physical layer pins compliant with ISO 11898-1, 1 Mbps capable |
| MTU0–MTU5 | PWM/timer output | Six 16-bit timer channels supporting complementary PWM, phase counting, and A/D trigger generation |
| SCI0–SCI9 / SCI12 | Serial interface | Seven SCIg channels (asynchronous/clock-sync/smart card) + one SCIh (LIN-capable) |
| RSPI_MOSI / MISO / SCK / SSL | SPI master/slave | Full-duplex serial peripheral interface supporting up to 16 Mbps, 8–32 bit transfers |
Key Features
| Feature | Design Value |
|---|---|
| IEC60730 Safety Support | Hardware-assisted RAM test (DOC), A/D disconnect detection, clock accuracy monitoring (CAC), IWDT diagnostics |
| Delta-Sigma ADC Filtering | Configurable sinc filters: fourth-order, fourth+fourth, fifth-order, or fifth+first - enabling precise 50/60 Hz line rejection |
| Low-Power Operation | Software standby mode with LPT active on sub-clock; deep sleep with <1 µA current draw |
| Event-Driven Processing | ELC enables direct inter-module triggering (e.g., MTU → DSAD start) without CPU interrupt latency |
| High-Voltage Analog Front End | Integrated low-side switch (10 Ω), HVCOM disconnect detector, ±10-V input tolerance, and ±10-V fault detection |
| On-Chip Debugging | FINE interface compatible with E1 emulator for real-time trace, flash programming, and breakpoint debugging |
Applications
| Industrial Weighing Systems | High-Accuracy Temperature Monitoring |
|---|---|
Use Scenario: Digital load cells and platform scales requiring sub-gram resolution under vibration and thermal drift. IC Role / Device Role / Timing Role: Primary signal acquisition MCU with integrated PGA, 24-bit delta-sigma ADC, and excitation current sources for bridge sensors. Use Value: 125 kSPS sampling and 24-bit effective resolution enable real-time dynamic weighing; ±10-V HVAIN and 4 nV/°C offset drift ensure stability across –40°C to +105°C ambient. |
Use Scenario: Multi-sensor RTD/thermistor arrays in process control cabinets with strict EMC and long-term calibration requirements. IC Role / Device Role / Timing Role: Sensor hub MCU performing cold-junction compensation, linearization, and CAN-based reporting. Use Value: Dual excitation current sources (±0.2% matching) and low-drift voltage reference (8 ppm/°C) minimize system-level temperature error; IEC60730 diagnostics support functional safety compliance. |
| Smart Grid Current/Voltage Sensors | Industrial Motor Protection Units |
Use Scenario: CT/PT interface modules in DIN-rail mounted power quality analyzers needing isolation, accuracy, and harmonic analysis. IC Role / Device Role / Timing Role: Precision analog front-end controller with sinc-filtered delta-sigma conversion and real-time FFT preprocessing. Use Value: Simultaneous 50/60 Hz rejection at 10/54 SPS eliminates line interference; 16-bit D/A provides calibrated analog output for legacy metering interfaces. |
Use Scenario: Embedded motor controllers monitoring winding resistance, bearing current, and thermal rise via multiple analog channels. IC Role / Device Role / Timing Role: Real-time protection processor executing thermal models, overcurrent detection, and trip logic with hardware-accelerated CRC and DOC. Use Value: On-chip 12-bit S12AD (1.4 µs conversion) handles fast transient detection; RSCAN CAN ensures deterministic communication with drive inverters and HMI panels. |
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 |
|---|---|---|---|
| R5F523E5LGFP#20 | Same core, same analog specs, but 100-pin LFQFP (PLQP0100KB-B), 14 × 14 mm, 0.5 mm pitch | Requires PCB layout change; better thermal dissipation and hand-solderability vs. TFBGA | Select for prototyping, manual assembly, or higher thermal mass requirements |
| R5F523E6LGBS#20 | 256 KB flash / 32 KB RAM (vs. 128 KB / 16 KB); identical analog/peripheral spec and package | Supports larger firmware (e.g., Modbus TCP stack + web server) without external memory | Select when firmware complexity exceeds 128 KB or future-proofing for feature expansion is required |
Compared with R5F523E5LGBS#20, the R5F523E5LGFP#20 offers identical functionality in an easier-to-route LFQFP package, while R5F523E6LGBS#20 doubles flash/RAM capacity within the same TFBGA footprint - enabling scalable firmware development without changing analog signal chain design.
Availability
R5F523E5LGBS#20 is available at Aetrix Electronics and suitable for industrial weighing systems, smart grid sensor nodes, motor protection units, and high-accuracy temperature monitoring equipment requiring stable component supply across extended temperature ranges.
Supply support for R5F523E5LGBS#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 infrastructure markets.
The RX23E-B Group - including R5F523E5LGBS#20 - was designed specifically for high-precision sensor signal conditioning in industrial automation, featuring integrated delta-sigma ADCs, PGAs, excitation sources, and safety diagnostics.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5LGBS#20?
The R5F523E5LGBS#20 supports a maximum delta-sigma ADC sampling rate of 125 kSPS, achievable with modulator clock fMOD = 4 MHz and appropriate sinc filter configuration. At lower data rates (e.g., 3.8 SPS), it delivers 24-bit effective resolution with simultaneous 50/60 Hz rejection - critical for industrial weigh scale and energy metering applications where R5F523E5LGBS#20 is deployed.
Does R5F523E5LGBS#20 support ±10-V analog inputs, and how are they implemented?
Yes, R5F523E5LGBS#20 supports ±10-V differential analog inputs via dedicated HVAIN0–HVAIN3 pins, enabled by its integrated high-voltage analog front end. These pins connect directly to the 24-bit delta-sigma ADC's input multiplexer and include built-in fault detection for overvoltage, disconnection, and HVCOM anomalies - ensuring robust operation in industrial transducer interfaces where R5F523E5LGBS#20 serves as the primary acquisition engine.
What safety certifications or diagnostic features does R5F523E5LGBS#20 provide for IEC60730 compliance?
R5F523E5LGBS#20 includes hardware-assisted IEC60730 Class B support: RAM test assistance via Data Operation Circuit (DOC), A/D converter self-test and disconnect detection, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT) diagnostics, and voltage monitor (LVD) supervision. These features reduce software validation effort and are documented in Renesas' Functional Safety Manual for RX23E-B, making R5F523E5LGBS#20 suitable for certified industrial control designs.
Can R5F523E5LGBS#20 operate in software standby mode while maintaining analog monitoring?
Yes, R5F523E5LGBS#20 supports software standby mode with the Low Power Timer (LPT) running continuously off the 32.768 kHz sub-clock oscillator. During this state, the LPT can generate periodic interrupts to wake the CPU for scheduled ADC conversions or CAN status checks - enabling ultra-low-power sensor polling without full system wake-up, a key capability leveraged in battery-backed R5F523E5LGBS#20 deployments.
What is the function of the excitation current sources in R5F523E5LGBS#20, and what accuracy do they offer?
R5F523E5LGBS#20 integrates two programmable excitation current sources (IEXC0/IEXC1) with outputs selectable from 50 µA to 1000 µA in six steps. They deliver ±0.2% current matching and 5 ppm/°C drift matching - essential for precision RTD and 4-wire bridge measurements. These sources connect directly to the analog multiplexer and are monitored by dedicated disconnect detectors, forming a tightly coupled analog subsystem within R5F523E5LGBS#20.
R5F523E5LGBS#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-TFBGA
- 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, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 58
- 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, 8x24b 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:
R5F523E5LGBS#20 FAQ
1.How can I place an order for R5F523E5LGBS#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5LGBS#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 R5F523E5LGBS#20 reliable?
The price and inventory of R5F523E5LGBS#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5LGBS#20 is usually 5 days.
3.What payment methods are accepted for R5F523E5LGBS#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5LGBS#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E5LGBS#20?
R5F523E5LGBS#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5LGBS#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 R5F523E5LGBS#20?
For technical support, including R5F523E5LGBS#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5LGBS#20 requirements.
6.How does Aetrix verify that R5F523E5LGBS#20 is sourced from the original manufacturer or authorized distributors?
All R5F523E5LGBS#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 R5F523E5LGBS#20 meets industry standards.
7.What is the process for return or replacement of R5F523E5LGBS#20?
All R5F523E5LGBS#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5LGBS#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 R5F523E5LGBS#20 part is unused and in its original packaging.
Return procedure for R5F523E5LGBS#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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