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Renesas R5F523E5NDFP#30
- Part No.:
- R5F523E5NDFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F523E5NDFP#30.pdf
- Description:
- 32BIT MCU RX23E-B 128K LFQFP100
- Quantity:
- Payment:
- Shipping:
Inventory:4,490
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Product details
Overview
R5F523E5NDFP#30 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision analog measurement in industrial sensing systems, featuring a 32-MHz CPU core, 128-KB flash, 16-KB SRAM, 8-KB data flash, and a 24-bit delta-sigma A/D converter with 31.25 kSPS max sampling rate and ±5-V input range. It integrates a rail-to-rail programmable gain instrumentation amplifier (PGA), on-chip excitation current sources (50–1000 µA), low-drift voltage reference (2.5 V, 8 ppm/°C), and CAN 2.0B interface - deployed in load cell signal conditioning and smart sensor transmitters.
For engineers reviewing the R5F523E5NDFP#30 datasheet, R5F523E5NDFP#30 pinout, R5F523E5NDFP#30 application, or R5F523E5NDFP#30 equivalent, key selection criteria include its 100-pin LFQFP package (PLQP0100KB-B), D-version temperature grade (–40°C to +85°C), integrated analog front-end with ±5-V HVAIN support, and real-time calibration capabilities for IEC60730-compliant safety-critical measurement systems.
Technical Context
The R5F523E5NDFP#30 implements the RXv2 CPU core with IEEE 754-compliant single-precision FPU, 64 DMIPS @ 32 MHz, and memory protection unit (MPU) for deterministic real-time execution. Its analog subsystem centers on the DSADB module synchronized to PCLKC (≤16 MHz), supporting fourth- and fifth-order sinc digital filters and simultaneous 50/60 Hz rejection at 10/54 SPS.
Timing control leverages the Event Link Controller (ELC) to trigger A/D conversion, PWM output, and D/A updates without CPU intervention - enabling ultra-low-jitter synchronized acquisition and actuation in closed-loop industrial controllers. The MCU operates across 1.8–5.5 V supply with three low-power modes, including software standby with active LPT and IWDT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC Harvard architecture with 5-stage pipeline, 64 DMIPS @ 32 MHz, IEEE 754 FPU, MPU, and fast interrupt response |
| Flash / RAM / Data Flash | 128 KB on-chip flash (no wait states @ 32 MHz), 16 KB SRAM (no wait), 8 KB data flash rated for 1M program/erase cycles |
| 24-bit Delta-Sigma ADC | DSADB unit with 31.25 kSPS max sampling rate, ±5-V input range via HVAIN pins, 24-bit effective resolution @ 3.8 SPS, PGA gain ×1–×128 |
| Analog Front End | Voltage reference: 2.5 V ±8 ppm/°C; excitation current sources: two channels, 50–1000 µA with ±0.2% matching; bias generator: (AVCC0 + AVSS0)/2 |
| Communication Interfaces | CAN 2.0B (1 channel, up to 1 Mbps), SCIg (6 channels), RIICa (I²C/SMBus, 400 kbps), RSPIc (16 Mbps), SCIh (LIN support) |
| Timers & Control | MTU2a (6×16-bit channels, complementary PWM), CMT (2×16-bit), TMR (4×8-bit), RTC (calendar/binary mode), LPT (16-bit, sub-clock driven) |
| Package & Environment | PLQP0100KB-B: 100-pin LFQFP, 14 × 14 mm, 0.5 mm pitch; operating temperature –40°C to +85°C (D version) |
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, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual 1.8–5.5 V core/analog supply domains; separate AVCC0 (4.5–5.5 V) for 12-bit ADC and analog front end |
| HVAIN0–HVAIN3 | Analog input (high-voltage) | ±5-V differential inputs supporting direct connection to strain gauges and bridge sensors without external level-shifting |
| AVREFH / AVREFL | ADC reference voltage | External reference inputs for DSADB; internal 2.5 V reference selectable as primary source |
| IEXC0 / IEXC1 | Excitation current output | Programmable current sources (50–1000 µA) with ±0.2% matching for RTD or bridge excitation |
| TXD0 / RXD0 | SCI0 serial interface | Asynchronous UART interface for host communication or debug console; supports bit-rate modulation for noise immunity |
| CAN_TX / CAN_RX | CAN physical layer interface | Differential CAN bus signals compliant with ISO 11898-1; internal transceiver not included - requires external CAN PHY |
| MTIOC0A / MTIOC0B | PWM output pair | Complementary PWM outputs with dead-time insertion capability for motor gate drive or power stage control |
| RES# | Active-low reset input | Asynchronous hardware reset pin; internally pulled up; compatible with open-drain reset supervisors |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Analog Signal Chain | Single-chip solution combining 24-bit DSADB, PGA, excitation sources, bias generator, and ±5-V HVAIN - eliminates 6+ external components in weigh scale designs |
| IEC60730 Safety Support | Hardware-assisted self-test for A/D converter, clock accuracy (CAC), IWDT, RAM (DOC), and analog disconnect detection - reduces Class B certification effort |
| Event-Driven Operation | ELC enables autonomous peripheral triggering (e.g., MTU timer → DSADB start → R16DA update) without CPU wake-up - cuts active current by >40% in duty-cycled sensors |
| High-Precision Reference System | On-chip 2.5 V reference (8 ppm/°C drift) + matched excitation currents (5 ppm/°C drift matching) enable <0.01% total system gain error over temperature |
| Low-Power Measurement Mode | Software standby with LPT running at 32.768 kHz and DSADB in low-speed mode (125 kHz modulator clock) achieves <15 µA total system current at 10 SPS |
Applications
| Industrial Weigh Scales | Smart Pressure Transmitters |
|---|---|
|
Use Scenario: Digital load cell interface in platform scales and hopper weighing systems requiring <0.005% linearity and NTEP/UL certification. IC Role / Device Role / Timing Role: Primary signal processor executing real-time filtering, offset/gain calibration, and CAN-based fieldbus reporting every 100 ms. Use Value: Integrated ±5-V HVAIN, PGA, and excitation sources eliminate external op-amps and current sources - reducing BOM cost by $1.20 and PCB area by 28 mm². |
Use Scenario: 4–20 mA HART-enabled pressure transmitter with local display and diagnostics for oil & gas process monitoring. IC Role / Device Role / Timing Role: Dual-role controller: analog acquisition engine (DSADB + TEMPS + VDET) and digital communications hub (SCIh/LIN + CAN). Use Value: Simultaneous 50/60 Hz rejection at 10 SPS and built-in CRC calculator enable robust operation in electrically noisy refinery environments without external notch filters. |
| Energy Metering Sensors | Automated Test Equipment (ATE) |
|
Use Scenario: High-accuracy shunt-based current sensing module for residential smart meters with anti-tampering detection. IC Role / Device Role / Timing Role: Precision analog front-end capturing millivolt-level shunt voltages while performing real-time RMS calculation and fault logging to data flash. Use Value: 24-bit DSADB with 11 nVRMS noise floor (gain = 128) and offset drift of 4 nV/°C ensures <0.1% current measurement error across –40°C to +85°C. |
Use Scenario: Modular sensor calibration station verifying thermocouple, RTD, and strain gauge modules before deployment. IC Role / Device Role / Timing Role: Reconfigurable measurement node generating precision excitation, acquiring multi-channel analog data, and exporting via RSPI to host PC. Use Value: Programmable data rate (3.8 SPS to 125 kSPS) and four sinc filter configurations allow one R5F523E5NDFP#30 board to validate 7+ sensor types without hardware change. |
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 |
|---|---|---|---|
| R5F523E5LDFP#30 | Same package and memory, but supports ±10-V HVAIN input and includes LCD driver; higher analog input range, larger footprint due to LCD segment drivers | Required for 10-V bridge sensors or panel-mounted displays; unnecessary overhead for pure 5-V sensor nodes | Select R5F523E5LDFP#30 only when ±10-V input or LCD interface is needed - otherwise R5F523E5NDFP#30 offers lower cost and identical analog performance at 5 V |
| ADUCM360BCPZ-RL7 | ARM Cortex-M3 core, 24-bit ΣΔ ADC (3.75–3920 SPS), integrated 4 mA–20 mA DAC, no CAN, 64-pin LFCSP package | Optimized for loop-powered 4–20 mA transmitters; lacks CAN, high-speed timers, and ELC-driven autonomy | Choose ADUCM360BCPZ-RL7 for legacy 4–20 mA-only field devices; R5F523E5NDFP#30 is superior for CAN-connected, multi-protocol, or high-dynamic-range sensor hubs |
Compared with R5F523E5LDFP#30, R5F523E5NDFP#30 trades ±10-V input and LCD support for lower system cost and reduced firmware complexity in 5-V-only applications; versus ADUCM360BCPZ-RL7, it delivers CAN connectivity, event-driven autonomy, and higher maximum sampling rate - making it suitable for next-generation distributed industrial sensor networks.
Availability
R5F523E5NDFP#30 is available at Aetrix Electronics and suitable for industrial weigh scales, smart pressure transmitters, energy metering sensors, and automated test equipment requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for R5F523E5NDFP#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 - with over 40 years of embedded systems expertise.
The RX23E-B Group targets high-accuracy industrial sensing, integrating precision analog peripherals with real-time MCU performance to simplify certified measurement system design - specifically addressing IEC60730, UL61010, and SIL2 functional safety requirements.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5NDFP#30?
The R5F523E5NDFP#30 features a 24-bit delta-sigma A/D converter (DSADB) with a maximum sampling rate of 31.25 kSPS. This rate is achieved using a 4-MHz modulator clock and applies specifically to the N-variant configuration, which supports ±5-V input range and includes LCD driver functionality. Lower rates (e.g., 3.8 SPS) enable higher effective resolution and simultaneous 50/60 Hz rejection.
Does R5F523E5NDFP#30 include an integrated CAN transceiver?
No, R5F523E5NDFP#30 integrates only the CAN protocol controller (RSCAN module) compliant with ISO 11898-1. An external CAN physical-layer transceiver (e.g., SN65HVD23x or TJA1042) must be used to connect to the CAN bus. The MCU provides CAN_TX and CAN_RX signals referenced to VCC, requiring proper termination and common-mode filtering per ISO 11898-2 guidelines.
What analog input voltage range does R5F523E5NDFP#30 support?
R5F523E5NDFP#30 supports a ±5-V analog input range on its HVAIN pins (HVAIN0–HVAIN3), enabled by its high-voltage analog input circuitry. This is distinct from the standard AIN pins, which operate within AVCC0/AVSS0 rails. The ±5-V capability allows direct interfacing with industrial bridge sensors and load cells without external level-shifting amplifiers.
Is the voltage reference in R5F523E5NDFP#30 internally trimmed and temperature-stable?
Yes, R5F523E5NDFP#30 includes an on-chip voltage reference with 2.5 V nominal output, ±1% initial accuracy, and 8 ppm/°C typical temperature drift over –40°C to +85°C. It is factory-trimmed and buffered to support ±10 mA load current - sufficient to drive external ADC references or PGA bias networks without degradation.
What is the operating temperature grade of R5F523E5NDFP#30?
R5F523E5NDFP#30 is a D-version device, rated for operation from –40°C to +85°C ambient temperature. This grade meets industrial equipment requirements and is validated across the full range for all specified analog and digital performance parameters, including DSADB effective resolution, PGA gain drift (1 ppm/°C), and excitation current matching (±0.2%).
R5F523E5NDFP#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:
- 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:
R5F523E5NDFP#30 FAQ
1.How can I place an order for R5F523E5NDFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5NDFP#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 R5F523E5NDFP#30 reliable?
The price and inventory of R5F523E5NDFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5NDFP#30 is usually 5 days.
3.What payment methods are accepted for R5F523E5NDFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5NDFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E5NDFP#30?
R5F523E5NDFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5NDFP#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 R5F523E5NDFP#30?
For technical support, including R5F523E5NDFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5NDFP#30 requirements.
6.How does Aetrix verify that R5F523E5NDFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F523E5NDFP#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 R5F523E5NDFP#30 meets industry standards.
7.What is the process for return or replacement of R5F523E5NDFP#30?
All R5F523E5NDFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5NDFP#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 R5F523E5NDFP#30 part is unused and in its original packaging.
Return procedure for R5F523E5NDFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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