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Renesas R5F523E5MGFL#10
- Part No.:
- R5F523E5MGFL#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F523E5MGFL#10.pdf
- Description:
- 32BIT MCU RX23E-B 128K LFQFP48 F
- Quantity:
- Payment:
- Shipping:
Inventory:4,486
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Product details
Overview
R5F523E5MGFL#10 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 (gain = 1–128), on-chip excitation current sources (50–1000 µA), and a low-drift 2.5-V voltage reference. Operating at up to 32 MHz, it delivers 64 DMIPS and supports IEC60730-compliant self-diagnostic functions for safety-critical systems.
For engineers reviewing the R5F523E5MGFL#10 datasheet, R5F523E5MGFL#10 pinout, R5F523E5MGFL#10 application, or R5F523E5MGFL#10 equivalent, this MCU is selected for designs requiring simultaneous high-resolution sensor signal acquisition, real-time control, CAN communication, and functional safety support - especially in load cell interfaces, weigh scales, and precision process transmitters.
Technical Context
The R5F523E5MGFL#10 implements a CISC Harvard architecture with 5-stage pipeline and variable-length instructions, enabling ultra-compact code and fast interrupt response. Its dual A/D subsystem includes an 8-channel 24-bit delta-sigma converter (max 125 kSPS, 24-bit effective resolution at 3.8 SPS) and an 8-channel 12-bit SAR converter (1.4 µs conversion time), both synchronized via dedicated peripheral clocks (PCLKC and PCLKD).
On-chip analog front-end features include two independent excitation current sources with ±0.2% matching, bias voltage generator (VBIAS = (AVCC0 + AVSS0)/2), ±10-V HVAIN pins, and comprehensive fault detection (reference voltage disconnect, PGA input disconnect, HVCOM overvoltage). The ELC enables event-triggered operation of DSAD, MTU, and D/A without CPU intervention during sleep modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit, 32 MHz max, 64 DMIPS - enables real-time sensor fusion and control loop execution within tight timing budgets. |
| Flash / RAM / Data Flash | 128 KB flash / 16 KB SRAM / 8 KB data flash (1M erase cycles) - sufficient for firmware, calibration tables, and field-updatable parameters. |
| 24-bit Delta-Sigma ADC | 8 differential inputs, 125 kSPS max, 24-bit effective resolution at 3.8 SPS - supports high-accuracy weight and pressure measurements. |
| PGA & Analog Inputs | Rail-to-rail PGA (gain = 1–128), ±10-V HVAIN pins, 11 nVRMS noise (gain=128) - directly interfaces strain gauges and bridge sensors without external signal conditioning. |
| Excitation Current Sources | Two channels, 50–1000 µA programmable, ±0.2% matching - enables precise ratiometric RTD or 4-wire resistance measurements. |
| Voltage Reference | 2.5 V output, 8 ppm/°C drift (–40 to +85°C), ±10 mA drive - provides stable reference for both ADC and DAC with minimal system error contribution. |
| Communication Interfaces | CAN (1 ch, ISO11898-1, 1 Mbps), SCI (6 ch), RSPI (1 ch, 16 Mbps), I²C (1 ch, 400 kbps) - supports industrial fieldbus integration and multi-sensor daisy-chaining. |
Pinout & Package
Package: PLQP0048KB-B - 48-pin LFQFP, 7 × 7 mm, 0.5 mm pitch, lead-free, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Core logic supply (1.8–5.5 V); separate AVCC0 (4.5–5.5 V) required for high-precision analog section. |
| HVAIN0–HVAIN3 | Analog input | ±10-V tolerant differential input pins for direct connection to load cells and bridge sensors. |
| IEXC0 / IEXC1 | Excitation current output | Programmable current sources (50–1000 µA) for 2-, 3-, or 4-wire RTD/thermistor biasing. |
| DSAD_VREFH / DSAD_VREFL | ADC reference inputs | Accept external reference or internal 2.5-V reference; enable ratiometric measurement against excitation source. |
| MTU0–MTU5 | PWM/complementary output | 6-channel 16-bit timer outputs supporting motor control, LED dimming, or isolated gate driving via external drivers. |
| CAN_TX / CAN_RX | CAN bus interface | Differential signaling pair compliant with ISO11898-1; requires external CAN transceiver for physical layer. |
Key Features
| Feature | Design Value |
|---|---|
| IEC60730 Safety Support | Hardware-assisted RAM test (DOC), clock accuracy monitoring (CAC), IWDT self-check, and ADC disconnect detection - reduces software certification effort for Class B compliance. |
| Event Link Controller (ELC) | Enables autonomous peripheral triggering (e.g., DSAD conversion start on MTU overflow) without CPU wake-up - extends battery life in low-power sensor nodes. |
| Simultaneous 50/60 Hz Rejection | Configurable digital filters (sinc⁴, sinc⁵) suppress mains interference at 10/54 SPS - critical for weigh scale stability in noisy factory environments. |
| Low-Drift Analog Subsystem | PGA gain drift ≤1 ppm/°C (gain=1–16), offset drift ≤4 nV/°C (gain=64–128), 8 ppm/°C VREF - ensures long-term calibration stability over temperature. |
| High-Voltage Input Protection | HVAIN pins tolerate ±10 V with integrated fault detection (HVCOM disconnect, DSAD input overvoltage) - eliminates need for external clamping diodes in industrial I/O modules. |
Applications
| Industrial Weigh Scales | Process Pressure Transmitters |
|---|---|
|
Use Scenario: Digital weighing terminal acquiring signals from four-wire strain gauge bridges under varying ambient temperatures. IC Role / Device Role / Timing Role: Primary signal acquisition and linearization MCU; DSAD samples at 3.8 SPS with sinc⁵ filter, PGA gain set to 128, excitation currents matched to bridge sensitivity. Use Value: 24-bit effective resolution and <4 nV/°C offset drift eliminate recalibration drift across –40°C to +85°C operating range. |
Use Scenario: Smart 4–20 mA pressure transmitter with HART modulation, local display, and diagnostic reporting. IC Role / Device Role / Timing Role: Sensor interface, digital signal processing, HART waveform generation (via SCI), and 4–20 mA loop control (via 16-bit DAC + external op-amp). Use Value: Integrated excitation sources, ±10-V HVAIN, and built-in VREF enable single-chip analog front-end - reducing BOM count by 5+ discrete components. |
| Temperature Monitoring Systems | Motor Control Feedback Units |
|
Use Scenario: Multi-channel RTD-based temperature logger for HVAC duct monitoring with cold-junction compensation. IC Role / Device Role / Timing Role: Precision resistance measurement engine; IEXC0/IEXC1 drive 3-wire PT100 sensors, DSAD performs ratiometric conversion using internal VREF. Use Value: ±0.2% current matching and 1 ppm/°C gain drift ensure <0.1°C absolute accuracy without per-unit calibration. |
Use Scenario: Compact servo drive feedback module measuring motor phase currents and rotor position via Hall/encoder interface. IC Role / Device Role / Timing Role: Real-time current sensing (S12AD at 1.4 µs), position capture (MTU input capture), and PWM generation (MTU complementary mode). Use Value: Dual ADC subsystem allows concurrent high-speed current sampling and high-resolution torque calculation - enabling field-oriented control at 20 kHz update rate. |
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 |
|---|---|---|---|
| R5F523E5KDFL#10 | Same package (48-pin LFQFP), but supports ±10-V analog input range and LCD driver - lacks HVAIN pins and uses standard AIN instead of HVAIN. | Targeted at panel meters with display; not suitable for ±10-V bridge sensor interfaces requiring HVAIN protection. | Select R5F523E5MGFL#10 when ±10-V input tolerance, HVAIN fault detection, and IEC60730 diagnostics are mandatory. |
| ADS124S08IRHBT | Dedicated 24-bit delta-sigma ADC (no MCU core), SPI interface only, no integrated PGA or excitation sources - requires external host processor. | Used in modular sensor signal chains where ADC and controller are separated; adds latency and board area vs. integrated solution. | Choose R5F523E5MGFL#10 for embedded intelligence, real-time control, and reduced system-level complexity in space-constrained designs. |
Compared with R5F523E5KDFL#10, the R5F523E5MGFL#10 provides HVAIN-specific protection and fault detection essential for industrial load cells, while versus ADS124S08IRHBT, it eliminates external host dependency and integrates safety-critical diagnostics - delivering faster time-to-market for certified end equipment.
Availability
R5F523E5MGFL#10 is available at Aetrix Electronics and suitable for industrial weigh scales, process transmitters, temperature loggers, and motor feedback units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F523E5MGFL#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 markets - with deep expertise in high-precision mixed-signal integration.
The RX23E-B Group targets industrial sensing applications demanding metrology-grade accuracy, functional safety compliance, and integrated analog front-ends - enabling compact, reliable, and certifiable measurement systems.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5MGFL#10?
The R5F523E5MGFL#10 supports a maximum 24-bit delta-sigma ADC sampling rate of 125 kSPS. This rate is achievable with lower resolution modes; at full 24-bit effective resolution, the optimal rate is 3.8 SPS with sinc⁵ filtering. The device also supports intermediate rates like 10 SPS and 54 SPS for simultaneous 50/60 Hz rejection - all configurable via the DSAD module registers.
Does R5F523E5MGFL#10 include hardware support for IEC60730 Class B compliance?
Yes, R5F523E5MGFL#10 includes dedicated hardware for IEC60730 Class B: memory protection unit (MPU), clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with oscillator self-test, RAM test assistance via data operation circuit (DOC), and analog subsystem diagnostics including DSAD reference voltage disconnect detection and PGA input disconnect assist - all documented in the functional safety manual R01US0402EJ0100.
What analog input voltage range does R5F523E5MGFL#10 support on its HVAIN pins?
R5F523E5MGFL#10 supports a ±10-V input voltage range on its HVAIN0–HVAIN3 pins. These pins are specifically hardened for high-voltage industrial sensor interfaces and include integrated fault detection for overvoltage, disconnect, and common-mode violations on the HVCOM pin - eliminating the need for external protection circuitry in most bridge sensor applications.
Can R5F523E5MGFL#10 operate with a single 3.3-V supply for both digital and analog sections?
No. R5F523E5MGFL#10 requires separate supplies: VCC (1.8–5.5 V) for digital logic and AVCC0 (4.5–5.5 V) for the high-precision analog subsystem (DSAD, PGA, VREF). Operating AVCC0 below 4.5 V degrades DSAD performance and invalidates specified 24-bit resolution - Renesas specifies AVCC0 ≥ 4.5 V for full analog accuracy, making dual-rail or regulated 5-V analog supply mandatory.
What is the purpose of the low-side switch (LSW) integrated in R5F523E5MGFL#10?
The low-side switch (LSW) in R5F523E5MGFL#10 provides a 10 Ω (max) on-resistance path capable of switching up to 30 mA. It is designed to enable/disconnect sensor excitation paths or isolate analog front-end sections during power-down or fault conditions - improving system safety and reducing standby current in battery-powered measurement devices.
R5F523E5MGFL#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 17
- 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, 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:
R5F523E5MGFL#10 FAQ
1.How can I place an order for R5F523E5MGFL#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5MGFL#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 R5F523E5MGFL#10 reliable?
The price and inventory of R5F523E5MGFL#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5MGFL#10 is usually 5 days.
3.What payment methods are accepted for R5F523E5MGFL#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5MGFL#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E5MGFL#10?
R5F523E5MGFL#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5MGFL#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 R5F523E5MGFL#10?
For technical support, including R5F523E5MGFL#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5MGFL#10 requirements.
6.How does Aetrix verify that R5F523E5MGFL#10 is sourced from the original manufacturer or authorized distributors?
All R5F523E5MGFL#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 R5F523E5MGFL#10 meets industry standards.
7.What is the process for return or replacement of R5F523E5MGFL#10?
All R5F523E5MGFL#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5MGFL#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 R5F523E5MGFL#10 part is unused and in its original packaging.
Return procedure for R5F523E5MGFL#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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