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Renesas R5F523E5BDFM#30
- Part No.:
- R5F523E5BDFM#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F523E5BDFM#30.pdf
- Description:
- 32BIT MCU RX23E-B 128K LFQFP64 T
- Quantity:
- Payment:
- Shipping:
Inventory:1,103
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Product details
Overview
R5F523E5BDFM#30 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 A/D converter with 125 kSPS max sampling rate, rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), ±10-V input capability on HVAIN pins, and on-chip excitation current sources (50–1000 µA) - all operating at up to 32 MHz with 128 KB flash and 16 KB SRAM.
For engineers reviewing the R5F523E5BDFM#30 datasheet, R5F523E5BDFM#30 pinout, R5F523E5BDFM#30 application, or R5F523E5BDFM#30 equivalent, this MCU delivers calibrated high-resolution sigma-delta conversion, integrated analog front-end signal conditioning, and IEC60730-compliant self-test features for weight scales, strain gauge interfaces, and precision process transmitters.
Technical Context
The R5F523E5BDFM#30 implements a dedicated analog subsystem centered on the DSADB module, synchronized to PCLKC (up to 16 MHz), with configurable sinc filters (4th/5th-order), simultaneous 50/60 Hz rejection at 10/54 SPS, and offset/gain error calibration. Its 32-bit RXv2 CPU executes floating-point (IEEE754) and DSP instructions at 64 DMIPS, supported by MPU, ELC-triggered conversions, and background data flash operations.
It operates across 1.8–5.5 V supply with three low-power modes, includes CAN 2.0B (1 Mbps), six SCI channels, one RSPI, one RIIC, and supports IEC60730 Class B diagnostics via hardware-assisted RAM test, clock accuracy monitoring, and A/D disconnect detection - all within its 64-pin LFQFP package (PLQP0064KB-C, 10 × 10 mm, 0.5 mm pitch).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC Harvard architecture, 32 MHz max, 64 DMIPS - enables real-time sensor fusion and control loop execution without external co-processor. |
| Flash / SRAM | 128 KB on-chip flash (no wait states at 32 MHz), 16 KB SRAM - sufficient for embedded firmware with calibration tables and communication stacks. |
| Delta-Sigma ADC | 24-bit resolution, 125 kSPS max, ±10-V HVAIN inputs - supports direct connection to load cells and bridge sensors without external signal conditioning. |
| PGA Gain Range | 1× to 128× programmable, 11 nVRMS noise (gain=128, 3.8 SPS) - achieves sub-µV-level sensitivity for micro-strain measurements. |
| Excitation Current | Two channels, 50–1000 µA output, ±0.2% matching - enables precise ratiometric excitation of 4-wire RTDs or bridge sensors. |
| Operating Temp | –40°C to +85°C (D-version) - qualified for industrial environments including factory automation and HVAC control panels. |
| Package | 64-pin LFQFP (PLQP0064KB-C), 10 × 10 mm, 0.5 mm pitch - compatible with standard reflow assembly and offers 30 GPIOs with 5-V tolerance on select pins. |
Pinout & Package
Package: PLQP0064KB-C - 64-pin Low-profile Quad Flat Package, 10 × 10 mm body, 0.5 mm lead pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Core power supply / ground | Single 1.8–5.5 V supply domain; decoupling required per datasheet layout guidelines for analog stability. |
| AVCC0 / AVSS0 | Analog power / ground | 4.5–5.5 V analog supply; separate from digital VCC to minimize noise coupling into DSADB and PGA. |
| HVAIN0–HVAIN3 | High-voltage analog inputs | ±10-V input range pins supporting differential, pseudo-differential, or single-ended configurations for direct bridge sensor interface. |
| IEXC0 / IEXC1 | Excitation current outputs | Programmable current sources (50–1000 µA) with matched drift (5 ppm/°C) - used for ratiometric RTD or strain gauge excitation. |
| DSAD_VREFH / DSAD_VREFL | Delta-sigma ADC reference | Accepts external reference (e.g., precision 2.5 V) or internal 2.5 V VREF; enables flexible full-scale range selection. |
| MTU0–MTU5 | Multi-function timer I/O | 6 × 16-bit channels support PWM generation, input capture, and ELC-triggered A/D start - critical for synchronized motor/sensor timing. |
| SCI0–SCI5 | Serial communication interfaces | Six asynchronous/clock-synchronous SCI channels - used for host MCU communication, configuration, and diagnostic reporting. |
| RSCAN_TX / RSCAN_RX | CAN bus physical layer | Dedicated CAN 2.0B transceiver pins (1 Mbps) - enables integration into industrial fieldbus networks with built-in error handling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated analog front-end | On-chip 24-bit DSADB, PGA (1–128×), 2.5 V low-drift VREF (8 ppm/°C), and dual excitation current sources eliminate need for external op-amps and references. |
| IEC60730 compliance support | Hardware-assisted self-tests: A/D disconnect detection, clock accuracy measurement (CAC), IWDT diagnostics, and DOC-based RAM test reduce certification effort. |
| Event Link Controller (ELC) | Enables autonomous peripheral triggering (e.g., MTU event → DSADB conversion start) without CPU wake-up - extends software standby mode duration. |
| Low-power operation | Three low-power modes (Sleep, Deep Sleep, Software Standby) with LPT running on sub-clock - maintains timekeeping and wake-on-event capability at µA-level current. |
| Digital filtering options | Four selectable sinc filter configurations (e.g., 5th-order + 1st-order) allow trade-off between noise rejection, settling time, and 50/60 Hz interference suppression. |
Applications
| Industrial Weight Scale | Strain Gauge Interface Module |
|---|---|
|
Use Scenario: Digital weighing terminal for platform scales and hopper load cells in packaging lines. IC Role / Device Role / Timing Role: Primary signal acquisition MCU - conditions bridge output, performs high-resolution A/D conversion, applies linearization, and communicates weight data via SCI/CAN. Use Value: 24-bit effective resolution at 3.8 SPS enables <1 µV LSB sensitivity; ±10-V HVAIN pins accept raw mV/V bridge signals without attenuation or amplification. |
Use Scenario: DIN-rail mounted strain gauge signal conditioner for structural health monitoring in civil infrastructure. IC Role / Device Role / Timing Role: Analog front-end controller - supplies matched excitation current, digitizes differential output, and runs real-time temperature compensation algorithms. Use Value: 50 µA–1000 µA excitation with ±0.2% matching ensures ratiometric accuracy; onboard temperature sensor (±5°C) enables automatic cold-junction correction. |
| Process Transmitter | Energy Meter Reference Design |
|
Use Scenario: 4–20 mA HART-enabled transmitter for pressure and flow sensors in chemical plants. IC Role / Device Role / Timing Role: Sensor interface and protocol stack processor - acquires analog sensor output, executes HART modulation/demodulation, and manages loop power. Use Value: Simultaneous 50/60 Hz rejection at 10/54 SPS eliminates mains-induced noise in unshielded plant wiring; CAN interface supports multi-drop fieldbus topology. |
Use Scenario: High-accuracy polyphase energy meter reference design compliant with IEC62053-22 Class 0.2. IC Role / Device Role / Timing Role: Metrology core - digitizes voltage/current transformer outputs, computes RMS, harmonics, and active/reactive energy using FPU-accelerated math. Use Value: Single-precision FPU enables IEEE754-compliant floating-point calculations; 125 kSPS sampling supports >2 kHz harmonic analysis bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision analog measurement applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F523E5KDFM#30 | Same package and memory, but supports ±10-V analog input range (vs. ±5 V for R5F523E5BDFM#30); includes HVAIN0–HVAIN3 pins enabled. | Required for direct ±10-V sensor interfaces (e.g., high-output load cells); R5F523E5BDFM#30 limited to ±5-V range. | Select R5F523E5KDFM#30 when full ±10-V input capability is needed; otherwise R5F523E5BDFM#30 reduces BOM cost where ±5-V suffices. |
| R5F523E5JDFN#30 | 80-pin LFQFP package (PLQP0080KB-B), adds LCD controller (36 SEG × 8 COM), retains same 125 kSPS DSADB and 128 KB flash. | Used in local display-integrated instruments (e.g., handheld calibrators); R5F523E5BDFM#30 omits LCD driver to reduce pin count and cost. | Choose R5F523E5JDFN#30 only if on-board segment LCD driving is required; R5F523E5BDFM#30 is optimal for headless sensor nodes or space-constrained PCBs. |
Compared with R5F523E5KDFM#30 and R5F523E5JDFN#30, the R5F523E5BDFM#30 provides the most cost-effective 64-pin solution for pure analog acquisition tasks without LCD or extended voltage range - ideal for compact, high-channel-density sensor modules where board area and component count are critical.
Availability
R5F523E5BDFM#30 is available at Aetrix Electronics and suitable for industrial weight scale systems, strain gauge interface modules, and process transmitter designs requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant manufacturing.
Supply support for R5F523E5BDFM#30 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 over 40 years of embedded system expertise.
The RX23E-B Group, including the R5F523E5BDFM#30, was designed specifically for high-accuracy industrial sensing applications requiring integrated analog front-ends, IEC60730 compliance, and robust real-time processing - targeting weight scales, process transmitters, and energy metering.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5BDFM#30?
The R5F523E5BDFM#30 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 - enabling high-bandwidth applications such as vibration analysis or fast-response process control loops.
Does R5F523E5BDFM#30 include an integrated voltage reference?
Yes, the R5F523E5BDFM#30 includes an on-chip 2.5 V voltage reference (VREF) with 8 ppm/°C temperature drift over –40°C to +85°C. It can serve as the reference for the 24-bit delta-sigma ADC or be externally buffered - eliminating the need for discrete reference ICs in most precision measurement designs.
Can R5F523E5BDFM#30 drive a load cell directly without external amplification?
Yes, the R5F523E5BDFM#30 can interface directly with load cells via its ±10-V HVAIN pins and integrated rail-to-rail programmable gain instrumentation amplifier (PGA). With gain settings up to ×128 and 11 nVRMS noise at 3.8 SPS, it achieves sufficient SNR for 20-bit+ effective resolution without external signal conditioning stages.
What communication interfaces are available on R5F523E5BDFM#30?
The R5F523E5BDFM#30 integrates CAN 2.0B (1 channel, up to 1 Mbps), six SCI channels (asynchronous/clock-synchronous), one I2C bus interface (RIICa), and one serial peripheral interface (RSPIc). These support industrial protocols including HART, Modbus RTU, and custom sensor network stacks.
Is R5F523E5BDFM#30 qualified for IEC60730 Class B compliance?
Yes, the R5F523E5BDFM#30 includes hardware-assisted IEC60730 Class B compliance features: A/D converter self-diagnostic and disconnect detection, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT), RAM test assistance via DOC, and voltage detector functions - reducing software certification burden.
R5F523E5BDFM#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 30
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F523E5BDFM#30 FAQ
1.How can I place an order for R5F523E5BDFM#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5BDFM#30 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 R5F523E5BDFM#30 reliable?
The price and inventory of R5F523E5BDFM#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5BDFM#30 is usually 5 days.
3.What payment methods are accepted for R5F523E5BDFM#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5BDFM#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E5BDFM#30?
R5F523E5BDFM#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5BDFM#30 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 R5F523E5BDFM#30?
For technical support, including R5F523E5BDFM#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5BDFM#30 requirements.
6.How does Aetrix verify that R5F523E5BDFM#30 is sourced from the original manufacturer or authorized distributors?
All R5F523E5BDFM#30 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 R5F523E5BDFM#30 meets industry standards.
7.What is the process for return or replacement of R5F523E5BDFM#30?
All R5F523E5BDFM#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5BDFM#30, 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 R5F523E5BDFM#30 part is unused and in its original packaging.
Return procedure for R5F523E5BDFM#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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