Renesas R5F523E6LGBS#00
- Part No.:
- R5F523E6LGBS#00
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TFBGA
- Datasheet:
-
R5F523E6LGBS#00.pdf
- Description:
- 32BIT MCU RX23E-B 256K LFBGA100
- Quantity:
- Payment:

- Shipping:

Inventory:1,854
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Product details
Overview
R5F523E6LGBS#00 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, integrated 24-bit delta-sigma ADC with ±10-V input capability and 125-kSPS max sampling rate, and built-in CAN interface compliant to ISO11898-1. It operates across –40°C to +105°C and targets weight scales, process transmitters, and energy metering systems requiring metrology-grade analog front-end performance.
For engineers reviewing the R5F523E6LGBS#00 datasheet, R5F523E6LGBS#00 pinout, R5F523E6LGBS#00 application, or R5F523E6LGBS#00 equivalent, this MCU delivers verified 24-bit effective resolution at 3.8 SPS, rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), low-drift voltage reference (2.5 V, 8 ppm/°C), dual excitation current sources (50–1000 µA), and hardware-assisted IEC60730 safety diagnostics - all in a compact 5.5 × 5.5 mm TFBGA100 package.
Technical Context
The R5F523E6LGBS#00 integrates a dedicated analog subsystem centered on the DSADB 24-bit delta-sigma ADC, synchronized to PCLKC up to 16 MHz, with four selectable sinc filter configurations and simultaneous 50/60 Hz rejection at 10/54 SPS. Its analog front end includes ±10-V HVAIN pins, low-side switch (10 Ω), bias voltage generator, and fault detection for reference voltage, excitation current, and HVCOM disconnection.
Real-time control is enabled by the MTU2a 16-bit timer unit (6 channels) with complementary PWM, phase counting, and ELC-triggered A/D start, while system robustness is ensured by MPU, FPU (IEEE754 single-precision), CAC clock accuracy monitoring, and seven reset sources including LVD with multi-level voltage detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC Harvard architecture, 32 MHz max, 64 DMIPS, FPU & DSP instructions |
| Memory | 256-KB flash (no-wait @32 MHz), 32-KB SRAM, 8-KB data flash (1M erase cycles) |
| Delta-Sigma ADC | 24-bit resolution, ±10-V input range, 3.8 SPS–125 kSPS, 4 sinc filter options, 50/60 Hz rejection |
| Analog Front End | Rail-to-rail PGA (×1–128), 2.5-V reference (8 ppm/°C), dual excitation sources (50–1000 µA), 10-Ω low-side switch |
| Communication | CAN (ISO11898-1, 1 Mbps), 6× SCIg, 1× SCIh (LIN), 1× RIIC (400 kbps), 1× RSPI (16 Mbps) |
| Timers & Control | MTU2a (6×16-bit), CMT (2×16-bit), TMR (4×8-bit), RTC, LPT, IWDT with dedicated 15-kHz oscillator |
| Package & Temp | TFBGA100 (5.5 × 5.5 mm, 0.5 mm pitch), –40°C to +105°C operating range (G-version) |
Pinout & Package
Package: PTBG0100KD-A - 100-pin TFBGA, 5.5 × 5.5 mm body, 0.5 mm pitch, 0.45 mm height, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual 1.8–5.5 V core supply; separate AVCC0 (4.5–5.5 V) for analog precision |
| HVAIN0–HVAIN3 | Analog input | ±10-V tolerant differential inputs for load cell/bridge sensor interfacing |
| IEXC0 / IEXC1 | Excitation current output | Programmable 50–1000 µA current sources with ±0.2% matching for RTD/strain gauge |
| DSAD_VREFH / DSAD_VREFL | ADC reference | External reference input pins supporting internal 2.5-V reference or external precision source |
| MTU0A–MTU5A | PWM/complementary output | High-resolution waveform outputs with POE2a-controlled high-impedance state for motor/solenoid drive |
| CAN_TX / CAN_RX | CAN physical layer interface | Differential signaling pins compliant with ISO11898-1, supporting 1 Mbps bus rates |
| SCI0_TXD / SCI0_RXD | Asynchronous serial I/O | Full-duplex UART interface with baud rate generator and bit-rate modulation support |
| RESET# | Active-low reset input | Hardware reset pin accepting 1.8–5.5 V logic; triggers power-on, voltage-monitoring, or watchdog resets |
Key Features
| Feature | Design Value |
|---|---|
| IEC60730 Safety Support | Hardware-accelerated RAM test (DOC), A/D self-diagnostic, clock accuracy monitoring (CAC), and IWDT disconnect detection |
| High-Precision Analog Subsystem | 24-bit DSAD with 11 nVRMS noise (gain=128), 4 nV/°C offset drift, 1 ppm/°C gain drift, and ±10-V HVAIN tolerance |
| Event-Driven Operation | ELC enables direct module-to-module triggering without CPU wake-up - e.g., MTU pulse triggers DSAD conversion |
| Low-Power Sensing | Software standby mode with LPT running off sub-clock (32.768 kHz); DSAD supports background operation (BGO) |
| Robust Industrial Interface | CAN + multiple SCI channels with LIN/UART/SPI modes, 5-V-tolerant GPIOs, and configurable MPC for pin function mapping |
Applications
| Industrial Weight Scale | Process Current Loop Transmitter |
|---|---|
Use Scenario: High-accuracy weighing of industrial loads using strain-gauge bridges under varying temperature conditions. IC Role / Device Role / Timing Role: Primary signal processor and metrology engine - digitizes mV-level bridge outputs via DSAD, applies PGA gain, performs linearization, and communicates via CAN or SCI. Use Value: Delivers 24-bit effective resolution at 3.8 SPS with simultaneous 50/60 Hz rejection, enabling <0.005% full-scale accuracy in noisy factory environments. |
Use Scenario: Converting sensor signals (e.g., pressure, temperature) into standardized 4–20 mA loop outputs for PLC integration. IC Role / Device Role / Timing Role: Sensor interface MCU - acquires analog inputs via DSAD, executes calibration algorithms using FPU, drives 16-bit DAC for loop control, and manages HART communication over SCI. Use Value: Integrated excitation sources (50–1000 µA) and ±10-V HVAIN enable direct RTD/thermocouple conditioning without external op-amps or level shifters. |
| Energy Metering Front-End | Smart Grid Protection Relay |
Use Scenario: Precision voltage/current sampling in polyphase electricity meters complying with IEC62053-21 and IEC62053-22 standards. IC Role / Device Role / Timing Role: Metrology co-processor - synchronizes DSAD sampling to line frequency, computes RMS, harmonics, and power parameters using FPU and DOC acceleration. Use Value: On-chip 2.5-V reference (8 ppm/°C) and 125-kSPS sampling ensure Class 0.2 accuracy across –40°C to +105°C ambient range. |
Use Scenario: Real-time fault detection and tripping logic in medium-voltage distribution systems with strict SIL-2 requirements. IC Role / Device Role / Timing Role: Safety-critical controller - monitors analog inputs (CT/VT signals) via DSAD, runs protection algorithms, asserts trip signals via GPIO, and logs events to data flash. Use Value: Hardware-based IEC60730 diagnostics (RAM test, A/D disconnect, clock monitoring) reduce software certification burden and enable fail-safe behavior. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision sensing MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F523E6LGFP#00 | Same core, memory, and analog specs; LFQFP-100 (14 × 14 mm) instead of TFBGA-100 (5.5 × 5.5 mm) | Better thermal dissipation and easier prototyping; less suitable for space-constrained PCBs | Select for manual assembly, thermal management priority, or legacy footprint compatibility |
| R5F523E5LGBS#00 | Identical package and temp grade, but 128-KB flash / 16-KB RAM instead of 256-KB / 32-KB | Suitable for simpler firmware or cost-sensitive designs where full memory headroom is unnecessary | Select when application code size remains below 120 KB and BOM cost optimization is critical |
Compared with R5F523E6LGBS#00, R5F523E6LGFP#00 trades miniaturization for thermal and assembly flexibility, while R5F523E5LGBS#00 reduces memory capacity without altering analog performance - enabling tiered product variants within the same hardware platform.
Availability
R5F523E6LGBS#00 is available at Aetrix Electronics and suitable for industrial weight scale design, process transmitter development, and energy metering systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F523E6LGBS#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 infrastructure markets.
The RX23E-B Group - including R5F523E6LGBS#00 - was designed specifically for high-accuracy industrial sensing applications requiring integrated metrology-grade analog front ends, functional safety support, and real-time deterministic control.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E6LGBS#00?
The R5F523E6LGBS#00 supports a maximum sampling rate of 125 kSPS for its 24-bit delta-sigma ADC (DSADB). This rate is achievable with reduced resolution and specific filter configuration; at full 24-bit effective resolution, the typical usable rate is 3.8 SPS with fourth-order sinc filtering and simultaneous 50/60 Hz rejection. The modulator clock is fixed at 4 MHz (typ.), and oversampling ratios range from 32 to 1,048,576.
Does R5F523E6LGBS#00 support IEC60730 Class B compliance out of the box?
The R5F523E6LGBS#00 includes hardware-assisted features required for IEC60730 Class B, including RAM test support via the Data Operation Circuit (DOC), A/D converter self-test and disconnect detection, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT) with dedicated oscillator, and voltage monitoring circuits. However, full Class B certification requires system-level implementation of software diagnostics and validation per the standard - the MCU provides the foundational building blocks.
What analog input voltage range does R5F523E6LGBS#00 support on its HVAIN pins?
The R5F523E6LGBS#00 supports a ±10-V input voltage range on its HVAIN0–HVAIN3 pins. This high-voltage capability enables direct connection to industrial sensors such as load cells and bridge transducers without external level-shifting circuitry. The analog front end includes rail-to-rail programmable gain instrumentation amplifiers (PGA) with gain settings from ×1 to ×128, and internal bias voltage generation at (AVCC0 + AVSS0)/2.
Can R5F523E6LGBS#00 operate with a single 3.3-V supply across all peripherals?
No - the R5F523E6LGBS#00 requires separate supply domains: VCC (1.8–5.5 V) for digital logic and AVCC0 (4.5–5.5 V, or 1.8–5.5 V if only S12AD is active) for high-precision analog operation. Using 3.3 V on VCC is permitted, but AVCC0 must be ≥4.5 V to guarantee full 24-bit DSAD performance, reference stability, and excitation current accuracy. The 2.5-V internal voltage reference has 8 ppm/°C drift only when AVCC0 is within spec.
Is the CAN interface in R5F523E6LGBS#00 compatible with CAN FD?
No - the R5F523E6LGBS#00 implements a classical CAN controller compliant with ISO11898-1 (CAN 2.0B), supporting standard and extended frames at up to 1 Mbps. It does not support CAN FD features such as flexible data-rate, larger payloads, or CRC enhancements. For CAN FD applications, designers should consider Renesas' RA6T2 or RH850/F1K families instead.
R5F523E6LGBS#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, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 58
- 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:
R5F523E6LGBS#00 FAQ
1.How can I place an order for R5F523E6LGBS#00 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E6LGBS#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 R5F523E6LGBS#00 reliable?
The price and inventory of R5F523E6LGBS#00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E6LGBS#00 is usually 5 days.
3.What payment methods are accepted for R5F523E6LGBS#00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E6LGBS#00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E6LGBS#00?
R5F523E6LGBS#00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E6LGBS#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 R5F523E6LGBS#00?
For technical support, including R5F523E6LGBS#00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E6LGBS#00 requirements.
6.How does Aetrix verify that R5F523E6LGBS#00 is sourced from the original manufacturer or authorized distributors?
All R5F523E6LGBS#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 R5F523E6LGBS#00 meets industry standards.
7.What is the process for return or replacement of R5F523E6LGBS#00?
All R5F523E6LGBS#00 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E6LGBS#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 R5F523E6LGBS#00 part is unused and in its original packaging.
Return procedure for R5F523E6LGBS#00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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