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Renesas R5F523E5LDBS#00
- Part No.:
- R5F523E5LDBS#00
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TFBGA
- Datasheet:
-
R5F523E5LDBS#00.pdf
- Description:
- 32BIT MCU RX23E-B 128K LFBGA100
- Quantity:
- Payment:
- Shipping:
Inventory:1,055
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Product details
Overview
R5F523E5LDBS#00 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 ADC with ±10-V input capability, rail-to-rail programmable gain instrumentation amplifier (PGA), on-chip excitation current sources (50–1000 µA), 2.5-V low-drift voltage reference (8 ppm/°C), and CAN 2.0B interface - all operating at up to 32 MHz with 128 KB flash and 16 KB SRAM.
For engineers reviewing the R5F523E5LDBS#00 datasheet, R5F523E5LDBS#00 pinout, R5F523E5LDBS#00 application, or R5F523E5LDBS#00 equivalent, this MCU delivers deterministic real-time control, IEC60730-compliant self-test support, and simultaneous 50/60 Hz noise rejection - critical for load cell, pressure transducer, and weigh scale designs requiring <100 nV RMS noise floor and <5 ppm/°C gain drift.
Technical Context
The R5F523E5LDBS#00 implements a Harvard-architecture RXv2 CPU core with single-cycle instruction execution, IEEE 754-compliant FPU, and memory protection unit (MPU) - enabling deterministic real-time execution of sensor signal processing algorithms. Its analog subsystem centers on the DSADB module, synchronized to PCLKC (≤16 MHz), with configurable sinc filters and ELC-triggered conversion for zero-CPU-overhead sampling.
Power management includes three low-power modes (sleep, deep sleep, software standby), a dedicated low-speed oscillator for IWDT and LPT, and voltage detection circuits with 14-level programmability. Clock generation supports main (1–20 MHz), sub (32.768 kHz), and PLL-based system clocks, with CAC for closed-loop frequency accuracy monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC with 64 DMIPS @ 32 MHz, IEEE 754 FPU, MPU, and fast interrupt response |
| Flash / RAM / 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 | 8-channel differential input, 125 kSPS max rate, 24-bit effective resolution @ 3.8 SPS, ±10-V HVAIN range |
| Programmable Gain Amplifier | Rail-to-rail PGA with gain = 1–128, 11 nVRMS noise @ gain=128, offset drift = 4 nV/°C |
| Voltage Reference | 2.5 V output, 8 ppm/°C drift (–40 to +85°C), ±10 mA drive capability for external circuitry |
| Excitation Current Sources | Two independent channels, 50–1000 µA programmable output, ±0.2% matching, 5 ppm/°C drift matching |
| Communication Interfaces | 1× CAN 2.0B (1 Mbps), 6× SCIg, 1× SCIh (LIN), 1× RIIC (400 kbps), 1× RSPI (16 Mbps) |
Pinout & Package
Package: PTBG0100KD-A - 100-pin TFBGA, 5.5 mm × 5.5 mm, 0.5 mm pitch, –40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Core power supply / ground | 1.8–5.5 V single-supply operation; separate AVCC0 (4.5–5.5 V) required for 12-bit ADC precision |
| HVAIN0–HVAIN3 | High-voltage analog inputs | ±10-V input tolerance; enable direct connection to strain gauges and industrial sensors without external attenuation |
| IEXC0 / IEXC1 | Excitation current outputs | Programmable constant-current sources for RTD/bridge excitation; matched drift ensures stable ratiometric measurements |
| DSAD_VREFH / DSAD_VREFL | Delta-sigma ADC reference inputs | Accept external reference or internal 2.5 V; enables flexible ratiometric or absolute measurement configurations |
| CAN_TX / CAN_RX | CAN bus physical layer interface | Differential signaling compliant to ISO 11898-1; supports 1 Mbps operation with built-in protocol engine |
| MTU0–MTU5 | Multi-function timer pulse outputs | 6× 16-bit channels supporting complementary PWM, phase counting, and A/D trigger generation for motor/servo control |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous 50/60 Hz rejection | Hardware-filtered at 10 and 54 SPS output rates - eliminates mains interference without firmware overhead |
| IEC60730 safety assist functions | Built-in RAM test assistance, clock accuracy monitoring (CAC), IWDT self-check, and A/D disconnect detection |
| Event Link Controller (ELC) | Direct hardware linking between peripherals (e.g., MTU → DSAD trigger); enables ultra-low-latency, CPU-free signal chains |
| Low-side switch (LSW) | Integrated 10 Ω (max) switch for sensor bias control; reduces BOM count and improves channel-to-channel isolation |
| Background Operation (BGO) | Data flash programming/erasing while CPU executes code - essential for field firmware updates without interruption |
Applications
| Industrial Weigh Scales | Pressure Transmitter Modules |
|---|---|
|
Use Scenario: High-resolution weight measurement in platform scales and hopper systems under varying temperature and EMI conditions. IC Role / Device Role / Timing Role: Primary signal processor: digitizes mV-level bridge outputs via DSADB, applies PGA gain, rejects 50/60 Hz noise, and transmits calibrated data over CAN. Use Value: Achieves ≤100 nVRMS input-referred noise and <5 ppm/°C gain drift - meeting OIML R76 Class III/III+ metrology requirements without external calibration hardware. |
Use Scenario: Smart 4–20 mA loop-powered pressure transmitters with HART compatibility and local diagnostics. IC Role / Device Role / Timing Role: Analog front-end controller: supplies excitation current to piezoresistive sensors, measures differential output, performs linearization, and drives DAC for analog output. Use Value: On-chip 2.5 V reference (8 ppm/°C) and matched excitation sources eliminate external references and improve long-term zero stability over –40°C to +85°C. |
| Load Cell Signal Conditioners | Temperature-Compensated Strain Gauge Nodes |
|
Use Scenario: DIN-rail mounted signal conditioners converting millivolt outputs from load cells into isolated digital (CAN/RS485) or analog (4–20 mA) outputs. IC Role / Device Role / Timing Role: Integrated measurement SoC: handles sensor excitation, filtering, offset/gain calibration, temperature compensation, and communication protocol stack. Use Value: Simultaneous 50/60 Hz rejection and ±10-V HVAIN pins allow direct connection to full-bridge sensors - eliminating external op-amp stages and reducing PCB area by ≥30%. |
Use Scenario: Wireless structural health monitoring nodes measuring micro-strain on bridges or wind turbine blades using temperature-compensated strain gauges. IC Role / Device Role / Timing Role: Low-power measurement node: samples gauge output at 10–100 SPS, applies temperature correction using on-chip TEMPS sensor (±5°C), and transmits via CAN or SCI to gateway. Use Value: Software standby mode with LPT wake-up and BGO data flash updates enables >5-year battery life while maintaining traceable calibration history in on-chip data flash. |
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 |
|---|---|---|---|
| R5F523E6LDBS#00 | 256 KB flash / 32 KB RAM vs. 128 KB / 16 KB; identical analog/peripheral set and package | Required for larger firmware (e.g., dual CAN stacks, advanced filtering libraries) or extended data logging buffers | Select when firmware size exceeds 128 KB or SRAM usage >16 KB - same pinout, no layout change needed |
| ADUCM360BCPZ | ARM Cortex-M3 core, 24-bit ΣΔ ADC (125 kSPS), but no integrated CAN, no excitation sources, no LCD driver | Limited to standalone analog acquisition; requires external CAN transceiver and excitation circuitry | Choose for cost-sensitive, CAN-free applications where external component count is acceptable and ARM toolchain preference exists |
Compared with R5F523E6LDBS#00, the R5F523E5LDBS#00 offers identical analog performance and peripheral integration at lower memory cost - ideal for optimized firmware deployments. Versus ADUCM360BCPZ, it provides full system integration (CAN, excitation, reference, safety features) in one die, reducing total solution size and qualification effort.
Availability
R5F523E5LDBS#00 is available at Aetrix Electronics and suitable for industrial weigh scales, pressure transmitters, and load cell signal conditioners requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F523E5LDBS#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.
The RX23E-B Group targets high-accuracy sensor signal conditioning - integrating precision analog front-ends, real-time control, functional safety support, and industrial communications into a single MCU for smart sensor and transmitter applications.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5LDBS#00?
The R5F523E5LDBS#00 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 filter configurations; at 3.8 SPS, it achieves full 24-bit effective resolution with gain = 1. The modulator clock is fixed at 4 MHz (typ.), and oversampling ratios range from 32 to 1,048,576 depending on data rate selection.
Does R5F523E5LDBS#00 include an integrated CAN controller, and what standard does it support?
Yes, the R5F523E5LDBS#00 includes one RSCAN (CAN) module compliant with ISO 11898-1, supporting both standard (11-bit) and extended (29-bit) frame formats at bit rates up to 1 Mbps. It features 16 message boxes, programmable acceptance filtering, and automatic retransmission - enabling robust industrial network connectivity without external CAN controllers.
What analog input voltage range does R5F523E5LDBS#00 support on its HVAIN pins?
The R5F523E5LDBS#00 supports a ±10-V input voltage range on its HVAIN0–HVAIN3 pins. This high-voltage capability allows direct interfacing with industrial sensors such as strain gauges and pressure bridges without external level-shifting circuitry - simplifying design and improving noise immunity in harsh environments.
Is the 2.5-V voltage reference in R5F523E5LDBS#00 suitable for precision external ADCs or DACs?
Yes, the R5F523E5LDBS#00's internal 2.5-V voltage reference provides ±10 mA drive capability and 8 ppm/°C temperature drift (–40°C to +85°C), making it suitable for biasing external precision converters. It can be used as a stable reference source for external circuits, though its output must be buffered if driving capacitive loads >100 pF to maintain accuracy.
How does R5F523E5LDBS#00 support IEC60730 functional safety compliance?
The R5F523E5LDBS#00 includes dedicated hardware-assisted functions for IEC60730: RAM test assistance via DOC, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT) self-test, A/D converter disconnect detection, and voltage detector fault reporting. These features reduce software certification burden and enable Class B compliance without external safety monitors.
R5F523E5LDBS#00 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, 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, 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:
R5F523E5LDBS#00 FAQ
1.How can I place an order for R5F523E5LDBS#00 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5LDBS#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 R5F523E5LDBS#00 reliable?
The price and inventory of R5F523E5LDBS#00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5LDBS#00 is usually 5 days.
3.What payment methods are accepted for R5F523E5LDBS#00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5LDBS#00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E5LDBS#00?
R5F523E5LDBS#00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5LDBS#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 R5F523E5LDBS#00?
For technical support, including R5F523E5LDBS#00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5LDBS#00 requirements.
6.How does Aetrix verify that R5F523E5LDBS#00 is sourced from the original manufacturer or authorized distributors?
All R5F523E5LDBS#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 R5F523E5LDBS#00 meets industry standards.
7.What is the process for return or replacement of R5F523E5LDBS#00?
All R5F523E5LDBS#00 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5LDBS#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 R5F523E5LDBS#00 part is unused and in its original packaging.
Return procedure for R5F523E5LDBS#00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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