Renesas R5F523E6BGFL#50
- Part No.:
- R5F523E6BGFL#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F523E6BGFL#50.pdf
- Description:
- 32BIT MCU RX23E-B 256K LFQFP48 T
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F523E6BGFL#50 from Renesas is a 32-bit RXv2 core MCU optimized for high-precision industrial sensing, featuring a 24-bit delta-sigma A/D converter with 125 kSPS max sampling rate, ±10-V analog input capability via HVAIN pins, integrated rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), and on-chip excitation current sources (50–1000 µA) for bridge sensor interfacing. It operates at up to 32 MHz with 256 KB flash, 32 KB SRAM, and 8 KB data flash, targeting weight scales, pressure transmitters, and precision process controllers.
For engineers reviewing the R5F523E6BGFL#50 datasheet, R5F523E6BGFL#50 pinout, R5F523E6BGFL#50 application, or R5F523E6BGFL#50 equivalent, key selection criteria include its 48-pin LFQFP package (PLQP0048KB-B), –40°C to +105°C G-version temperature rating, 10-V analog input range, and integrated analog front-end (AFE) with voltage reference (2.5 V, 8 ppm/°C), bias generator, and low-side switch (10 Ω).
Technical Context
The R5F523E6BGFL#50 implements a CISC Harvard architecture with 5-stage pipeline, supporting 64 DMIPS at 32 MHz and IEEE 754-compliant single-precision FPU. Its analog subsystem centers on the DSADB module synchronized to PCLKC (≤16 MHz), with configurable sinc filters (4th/5th order), simultaneous 50/60 Hz rejection at 10/54 SPS, and offset/gain error calibration.
Digital integration includes one CAN 2.0B channel (1 Mbps), six SCIg interfaces (asynchronous/clock-sync/smart card), one RIICa (400 kbps I²C/SMBus), one RSPIc (16 Mbps), ELC-driven event-triggered conversions, and MPU-protected memory space. Power management supports three low-power modes with LPT operation during software standby.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit, 32 MHz max, 64 DMIPS, IEEE 754 FPU, 5-stage pipeline |
| Flash / RAM / Data Flash | 256 KB / 32 KB / 8 KB; zero-wait access at 32 MHz; 1M erase/program cycles |
| 24-bit Delta-Sigma ADC | 8-channel differential input; 125 kSPS max; ±10-V HVAIN range; 24-bit effective resolution at 3.8 SPS |
| Programmable Gain IA | Rail-to-rail PGA with gain = 1–128; 11 nVRMS noise (gain=128, 3.8 SPS); offset drift 4 nV/°C |
| Excitation Current Sources | Two channels; 50–1000 µA output; ±0.2% matching; 5 ppm/°C drift matching |
| Operating Temperature | –40°C to +105°C (G-version); single 1.8–5.5 V supply; AVCC0 = 4.5–5.5 V for full AFE operation |
| Package & Pins | 48-pin LFQFP (PLQP0048KB-B), 7 × 7 mm, 0.5 mm pitch; 17 I/O pins, 2 × 5-V tolerant |
Pinout & Package
Package: PLQP0048KB-B - 48-pin Low-profile Quad Flat Package, 7 mm × 7 mm body, 0.5 mm lead pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply / Ground | Main digital power (1.8–5.5 V) and ground; decoupling required per datasheet layout guidelines |
| AVCC0, AVSS0 | Analog power / Ground | High-precision analog domain supply (4.5–5.5 V); separate from digital VCC to minimize noise coupling |
| HVAIN0–HVAIN3 | Analog input | ±10-V capable high-voltage differential inputs for load cells, strain gauges, and RTD bridges |
| IEXC0, IEXC1 | Excitation current output | Programmable current sources (50–1000 µA) for 2-/3-/4-wire sensor biasing with matched drift |
| VREFH, VREFL | ADC reference | External reference inputs; internal 2.5 V reference available; fault detection supported |
| DSAD0–DSAD7 | Delta-sigma ADC inputs | Configurable as differential, pseudo-differential, or single-ended; routed via AMUX to PGA or direct |
| RESET#, NMI | Reset / Non-maskable interrupt | Active-low hardware reset; NMI supports oscillation stop detection and critical fault handling |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Analog Front-End (AFEA) | Combines 24-bit DSAD, PGA, VREF (2.5 V, 8 ppm/°C), bias generator (AVCC0+AVSS0)/2, and dual IEXC sources in one die-eliminates external signal conditioning for bridge sensors |
| Simultaneous 50/60 Hz Rejection | Configurable digital filter modes enable real-time mains interference cancellation at 10/54 SPS without firmware overhead |
| ELC-Driven Sensor Acquisition | Event Link Controller triggers ADC conversion, timer capture, or D/A update directly-no CPU wake-up or ISR latency for synchronized multi-sensor reads |
| IEC 60730 Safety Support | Hardware-assisted self-test for A/D converter, clock accuracy (CAC), IWDT, RAM (via DOC), and analog disconnect detection-reduces Class B certification effort |
| Low-Power Standby Operation | Software standby mode maintains RTC, LPT, and DSAD monitoring while drawing <10 µA; LPT wakes CPU on timeout or external event |
Applications
| Industrial Weight Scale | Pressure Transmitter |
|---|---|
|
Use Scenario: High-resolution weighing of tanks, hoppers, or conveyor belts under varying ambient temperatures and vibration. IC Role / Device Role / Timing Role: Primary sensor interface MCU: conditions mV/V bridge outputs, performs temperature-compensated linearization, and communicates calibrated mass over CAN or SCI. Use Value: 24-bit DSAD with 11 nVRMS noise and 4 nV/°C offset drift enables ≤0.005% FS repeatability across –40°C to +105°C without external chopper amplifiers. |
Use Scenario: Smart 4–20 mA loop-powered pressure transmitter for oil & gas or HVAC systems requiring SIL-2 compliance. IC Role / Device Role / Timing Role: System-on-chip controller: acquires piezoresistive sensor signals, executes diagnostics (IEC 60730), drives HART modem, and manages loop power. Use Value: Integrated excitation sources with ±0.2% matching and on-chip VREF (2.5 V, 8 ppm/°C) ensure stable ratiometric measurement-reducing component count by 4 vs. discrete AFE solutions. |
| Process Temperature Controller | Multi-Sensor Industrial Gateway |
|
Use Scenario: DIN-rail mounted temperature controller using Pt100/1000 RTDs in chemical reactors with strict EMC requirements. IC Role / Device Role / Timing Role: Precision analog acquisition engine: configures DSAD for 4-wire RTD with current reversal, applies polynomial correction, and outputs control signals via MTU PWM. Use Value: Programmable data rate (3.8 SPS–125 kSPS) and selectable sinc filters allow optimal trade-off between resolution (24-bit @ 3.8 SPS) and speed (16-bit @ 125 kSPS) per sensor type. |
Use Scenario: Edge node aggregating data from multiple analog sensors (strain, temp, humidity) and relaying via CAN or RSPI to PLC or cloud gateway. IC Role / Device Role / Timing Role: Multi-protocol sensor hub: time-synchronizes DSAD, S12AD, and temperature sensor reads via ELC, buffers data in SRAM, and forwards via SCI or CAN. Use Value: Four DMA channels and DTC enable concurrent background transfers-freeing CPU for protocol stack execution while maintaining 100% ADC throughput at 125 kSPS. |
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 |
|---|---|---|---|
| R5F523E5BGFL#50 | 128 KB flash / 16 KB RAM; same 48-pin LFQFP, G-temp, 10-V AFE, and DSAD specs | Lower memory capacity suits cost-sensitive designs with simpler firmware or external storage | Select when application firmware fits within 128 KB and no future feature expansion is anticipated |
| ADUCM360BCPZ-RL7 | ARM Cortex-M3 core; 24-bit ΣΔ ADC (125 kSPS); 128 KB flash; no integrated CAN or SCI; 40-pin LFCSP | Lacks on-chip communication peripherals (CAN/I²C/SCI) and ELC-requires external transceivers and glue logic | Prefer when ARM toolchain familiarity outweighs need for integrated industrial comms and event-driven AFE control |
Compared with R5F523E6BGFL#50, R5F523E5BGFL#50 offers identical analog performance and package but reduced memory, while ADUCM360BCPZ-RL7 provides comparable ADC specs in a smaller footprint but lacks the integrated CAN, SCI, and ELC features essential for deterministic sensor network nodes.
Availability
R5F523E6BGFL#50 is available at Aetrix Electronics and suitable for industrial weight scales, pressure transmitters, and process temperature controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F523E6BGFL#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 solutions for industrial, automotive, and IoT applications.
The RX23E-B Group targets high-accuracy industrial sensing, integrating precision analog front-ends with robust MCU peripherals to replace discrete signal chains in smart transmitters and measurement instruments.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E6BGFL#50?
The R5F523E6BGFL#50 supports a maximum sampling rate of 125 kSPS for its 24-bit delta-sigma A/D converter (DSADB). This rate is achievable with modulator clock fMOD = 4 MHz and appropriate sinc filter configuration. At lower data rates (e.g., 3.8 SPS), it achieves 24-bit effective resolution with simultaneous 50/60 Hz rejection enabled.
Does R5F523E6BGFL#50 support ±10-V analog inputs, and which pins are rated for this range?
Yes, R5F523E6BGFL#50 supports ±10-V analog inputs via dedicated HVAIN pins: HVAIN0 through HVAIN3. These pins are electrically isolated from standard DSAD inputs and tolerate the full ±10-V range, enabling direct connection to unconditioned bridge sensors without external level-shifting circuitry.
What communication interfaces are integrated into R5F523E6BGFL#50?
R5F523E6BGFL#50 integrates one CAN 2.0B channel (1 Mbps), six SCIg interfaces (asynchronous/clock-sync/smart card), one RIICa (I²C/SMBus, 400 kbps), and one RSPIc (SPI, 16 Mbps). It does not include an LCD controller in the 'B' variant, distinguishing it from 'J'/'L'-suffixed parts.
How does the Event Link Controller (ELC) enhance system efficiency in R5F523E6BGFL#50?
The ELC in R5F523E6BGFL#50 enables direct hardware triggering between peripherals-e.g., an MTU timer overflow can initiate DSAD conversion without CPU intervention or interrupt latency. This allows deterministic, low-jitter sensor acquisition and reduces CPU load by up to 30% in continuous monitoring applications.
What is the operating temperature range and supply voltage specification for R5F523E6BGFL#50?
R5F523E6BGFL#50 is a G-version device rated for –40°C to +105°C ambient operation. It accepts a single 1.8–5.5 V digital supply (VCC), while the analog domain (AVCC0) requires 4.5–5.5 V for full 24-bit DSAD performance and ±10-V HVAIN operation.
R5F523E6BGFL#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 17
- 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, 6x24b Sigma-Delta; D/A 1x16b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F523E6BGFL#50 FAQ
1.How can I place an order for R5F523E6BGFL#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E6BGFL#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 R5F523E6BGFL#50 reliable?
The price and inventory of R5F523E6BGFL#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E6BGFL#50 is usually 5 days.
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Once your R5F523E6BGFL#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 R5F523E6BGFL#50?
For technical support, including R5F523E6BGFL#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E6BGFL#50 requirements.
6.How does Aetrix verify that R5F523E6BGFL#50 is sourced from the original manufacturer or authorized distributors?
All R5F523E6BGFL#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 R5F523E6BGFL#50 meets industry standards.
7.What is the process for return or replacement of R5F523E6BGFL#50?
All R5F523E6BGFL#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E6BGFL#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 R5F523E6BGFL#50 part is unused and in its original packaging.
Return procedure for R5F523E6BGFL#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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