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Renesas R5F523E6LDFP#30
- Part No.:
- R5F523E6LDFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F523E6LDFP#30.pdf
- Description:
- 32BIT MCU RX23E-B 256K LFQFP100
- Quantity:
- Payment:
- Shipping:
Inventory:2,743
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Product details
Overview
R5F523E6LDFP#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 ADC with ±10-V input capability, rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), 256 KB on-chip flash, 32 KB SRAM, and CAN 2.0B interface - all operating at up to 32 MHz. Target use includes weigh scales, process transmitters, and energy metering front-ends requiring IEC60730-compliant self-test.
For engineers reviewing the R5F523E6LDFP#30 datasheet, R5F523E6LDFP#30 pinout, R5F523E6LDFP#30 application, or R5F523E6LDFP#30 equivalent, this MCU delivers deterministic real-time control with integrated analog signal chain calibration, low-drift voltage reference (2.5 V, 8 ppm/°C), and hardware-assisted diagnostics for A/D, clock, and memory integrity.
Technical Context
The R5F523E6LDFP#30 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 64 DMIPS @ 32 MHz, and CISC Harvard architecture with 5-stage pipeline. Its analog subsystem centers on a single 24-bit delta-sigma ADC unit supporting eight differential inputs, fourth- and fifth-order sinc digital filters, and simultaneous 50/60 Hz rejection at 10/54 SPS.
Timing and reliability are reinforced by independent watchdog timer (IWDT) driven by dedicated 15-kHz oscillator, event link controller (ELC) enabling interrupt-free peripheral chaining, and built-in diagnostic support for RAM test, clock accuracy measurement (CAC), and A/D disconnect detection - all aligned with IEC60730 Class B requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit, 32 MHz max, 64 DMIPS - enables real-time sensor fusion and floating-point math without external coprocessor |
| Flash / RAM | 256 KB flash (no-wait @ 32 MHz), 32 KB SRAM - sufficient for dual-bank firmware updates and buffered high-rate ADC data streams |
| Delta-Sigma ADC | 24-bit resolution, 125 kSPS max, ±10-V HVAIN input range - supports direct connection to strain gauges and load cells without external signal conditioning |
| PGA Performance | Rail-to-rail PGA with gain 1–128, 11 nVRMS noise @ gain=128, 4 nV/°C offset drift - ensures stable precision across industrial temperature range |
| Voltage Reference | 2.5 V internal VREF, 8 ppm/°C drift (–40 to +85°C), ±10 mA output - provides stable excitation and ADC reference for ratiometric measurements |
| Communication | CAN 2.0B (1 Mbps), 6× SCI, 1× I²C, 1× RSPI - enables robust fieldbus connectivity and multi-protocol sensor interfacing |
| Package & Temp | PLQP0100KB-B (100-pin LFQFP, 14 × 14 mm, 0.5 mm pitch), –40°C to +85°C - compatible with standard reflow and industrial PCB layouts |
Pinout & Package
Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package, 14 mm × 14 mm body, 0.5 mm lead pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Core power supply / ground | 1.8–5.5 V operation; separate AVCC0 (4.5–5.5 V) required for 12-bit ADC and ±10-V analog front end |
| HVAIN0–HVAIN3 | High-voltage analog inputs | ±10-V tolerant differential inputs for direct strain gauge/load cell interface; internally routed to DSAD |
| AVCC0 / AVSS0 | Analog power domain | Must be supplied at 4.5–5.5 V for full 24-bit ADC performance and ±10-V input range operation |
| DSAD_VREFH / DSAD_VREFL | Delta-sigma ADC reference | Accepts external reference or internal 2.5 V VREF; enables ratiometric measurement with excitation sources |
| IEXC0 / IEXC1 | Excitation current outputs | Programmable 50–1000 µA (±0.2% matching), used for RTD/bridge sensor biasing with matched drift (5 ppm/°C) |
| CANH / CANL | CAN bus differential pair | ISO 11898-1 compliant physical layer interface; supports 1 Mbps operation with integrated transceiver logic |
Key Features
| Feature | Design Value |
|---|---|
| IEC60730 Self-Diagnostic Support | Hardware-accelerated RAM test (DOC), A/D converter calibration, clock accuracy measurement (CAC), and IWDT disconnect detection reduce Class B certification effort |
| Simultaneous 50/60 Hz Rejection | Built-in digital filter modes (e.g., 10/54 SPS) reject both line frequencies without software intervention - critical for AC-coupled industrial environments |
| Low-Power Timer (LPT) | 16-bit counter running during software standby mode using sub-clock or IWDT oscillator - enables wake-up on timed analog events without full CPU activation |
| Event Link Controller (ELC) | Direct hardware triggering between peripherals (e.g., MTU → DSAD start); eliminates interrupt latency and CPU overhead in synchronized measurement sequences |
| Rail-to-Rail Programmable Gain Amplifier | Gain 1–128, ±10-V input, 11 nVRMS noise @ gain=128 - replaces discrete instrumentation amp stages while maintaining 24-bit effective resolution |
Applications
| Industrial Weigh Scale | Process Current Transmitter (4–20 mA) |
|---|---|
|
Use Scenario: High-accuracy weight measurement in tank, hopper, or conveyor systems with temperature compensation and overload protection. IC Role / Device Role / Timing Role: Primary signal acquisition and control MCU - conditions bridge sensor signals via PGA and DSAD, computes calibrated weight, drives 4–20 mA loop via 16-bit DAC and excitation sources. Use Value: Eliminates external precision op-amps and reference ICs; ±10-V HVAIN pins accept raw bridge outputs; built-in self-diagnostics satisfy SIL-2 functional safety requirements. |
Use Scenario: Field-mounted transmitter converting pressure/temperature sensor outputs into standardized 4–20 mA analog output with HART digital overlay. IC Role / Device Role / Timing Role: Integrated analog front-end and communication controller - digitizes sensor signals, applies linearization and temperature compensation, manages HART modem via SCI, and regulates loop current. Use Value: Single-chip solution reduces BOM count and layout area; excitation current sources (IEXC0/IEXC1) match RTD/bridge sensors; CAN interface enables local configuration and diagnostics. |
| Energy Meter Front-End | Multi-Sensor Industrial Gateway |
|
Use Scenario: High-precision voltage/current sampling for residential/commercial electricity meters compliant with IEC62053 standards. IC Role / Device Role / Timing Role: Metrology acquisition engine - synchronizes DSAD sampling to line frequency via ELC-triggered timers, computes RMS, harmonics, and power factor using FPU. Use Value: 24-bit DSAD with 125 kSPS supports oversampling for >0.1% accuracy; simultaneous 50/60 Hz rejection ensures stable readings across global grids; integrated VREF guarantees ratiometric stability. |
Use Scenario: Edge node aggregating data from multiple analog sensors (strain, temp, pressure) and relaying via CAN or RSPI to central PLC or cloud gateway. IC Role / Device Role / Timing Role: Multi-protocol sensor hub - time-synchronized acquisition across 8 DSAD channels, stores preprocessed data in SRAM, forwards via CAN or RSPI with CRC integrity checking. Use Value: ELC and DTC offload CPU from data movement; 6× SCI ports enable legacy sensor integration; 256 KB flash hosts secure bootloader and OTA update stack. |
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 |
|---|---|---|---|
| R5F523E6LGBS | Same core, flash, and analog specs; TFBGA-100 package (5.5 × 5.5 mm) vs. LFQFP-100; rated for –40°C to +105°C | Preferred for space-constrained, high-temperature environments (e.g., motor drive enclosures); no LCD driver | Select when board area is limited or ambient exceeds +85°C; requires different PCB footprint and reflow profile |
| R5F523E5LDFP#30 | Same package and pinout; reduced memory (128 KB flash / 16 KB RAM); identical 24-bit DSAD, ±10-V HVAIN, and analog features | Suitable for cost-sensitive designs where firmware size and RAM usage fit within smaller memory map | Drop-in replacement if code footprint ≤128 KB and runtime RAM ≤16 KB; retains full analog signal chain capability |
Compared with R5F523E6LDFP#30, R5F523E6LGBS offers extended temperature range and smaller footprint but requires TFBGA assembly, while R5F523E5LDFP#30 provides identical analog performance at lower memory cost - enabling scalable product variants without redesigning the analog front-end or CAN interface.
Availability
R5F523E6LDFP#30 is available at Aetrix Electronics and suitable for industrial weigh scales, process transmitters, and energy metering systems requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for R5F523E6LDFP#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 applications.
The RX23E-B Group - including R5F523E6LDFP#30 - was designed specifically for high-accuracy sensor signal conditioning and metrology, integrating precision analog peripherals with real-time MCU control and IEC60730 compliance features.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E6LDFP#30?
The R5F523E6LDFP#30 supports a maximum sampling rate of 125 kSPS for its 24-bit delta-sigma ADC (DSADB). This rate is achievable with modulator clock fMOD = 4 MHz and appropriate digital filter selection - enabling high-speed precision acquisition for dynamic sensor signals while retaining 24-bit resolution at lower rates (e.g., 3.8 SPS).
Does R5F523E6LDFP#30 include an integrated voltage reference, and what are its key specifications?
Yes, R5F523E6LDFP#30 includes an integrated 2.5 V voltage reference (VREF) with 8 ppm/°C temperature drift over –40°C to +85°C and ±10 mA output current. This reference is used by the 24-bit delta-sigma ADC and can be externally buffered or bypassed - ensuring stable ratiometric measurements when paired with the on-chip excitation current sources.
Can R5F523E6LDFP#30 operate with a single 3.3-V supply, and what are the voltage domain requirements?
R5F523E6LDFP#30 operates from a single 1.8–5.5 V VCC supply, but its analog subsystem imposes stricter requirements: AVCC0 must be 4.5–5.5 V to support the ±10-V HVAIN input range and full 24-bit DSAD performance. A 3.3-V system can power VCC, but AVCC0 requires a separate 5-V rail - not derived from VCC.
How many excitation current sources does R5F523E6LDFP#30 provide, and what are their accuracy specs?
R5F523E6LDFP#30 provides two independent excitation current sources (IEXC0 and IEXC1) with programmable output from 50 µA to 1000 µA in six discrete steps. They feature ±0.2% current matching and 5 ppm/°C drift matching - critical for precision RTD and bridge sensor biasing where ratio-metric accuracy depends on source consistency.
Is R5F523E6LDFP#30 pin-compatible with other members of the RX23E-B Group, such as R5F523E5LDFP#30?
Yes, R5F523E6LDFP#30 is pin-compatible with R5F523E5LDFP#30 - both use the PLQP0100KB-B (100-pin LFQFP) package and share identical pin functions, power domains, and peripheral mappings. The only differences are flash (256 KB vs. 128 KB) and RAM (32 KB vs. 16 KB), making R5F523E5LDFP#30 a direct memory-downgraded alternative.
R5F523E6LDFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-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, 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:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F523E6LDFP#30 FAQ
1.How can I place an order for R5F523E6LDFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E6LDFP#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 R5F523E6LDFP#30 reliable?
The price and inventory of R5F523E6LDFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E6LDFP#30 is usually 5 days.
3.What payment methods are accepted for R5F523E6LDFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E6LDFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E6LDFP#30?
R5F523E6LDFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E6LDFP#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 R5F523E6LDFP#30?
For technical support, including R5F523E6LDFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E6LDFP#30 requirements.
6.How does Aetrix verify that R5F523E6LDFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F523E6LDFP#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 R5F523E6LDFP#30 meets industry standards.
7.What is the process for return or replacement of R5F523E6LDFP#30?
All R5F523E6LDFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E6LDFP#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 R5F523E6LDFP#30 part is unused and in its original packaging.
Return procedure for R5F523E6LDFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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