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Renesas R5F523E5KDFM#30
- Part No.:
- R5F523E5KDFM#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F523E5KDFM#30.pdf
- Description:
- 32BIT MCU RX23E-B 128K LFQFP64 T
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F523E5KDFM#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), 128 KB on-chip flash, 16 KB SRAM, and a CAN interface compliant with ISO11898-1 up to 1 Mbps. The device operates at up to 32 MHz and supports –40°C to +85°C ambient temperature.
For engineers reviewing the R5F523E5KDFM#30 datasheet, R5F523E5KDFM#30 pinout, R5F523E5KDFM#30 application, or R5F523E5KDFM#30 equivalent, key selection criteria include its 10-V analog input range, 125 kSPS delta-sigma sampling rate, integrated excitation current sources (50–1000 µA), low-drift voltage reference (2.5 V, 8 ppm/°C), and support for IEC60730 safety diagnostics.
Technical Context
The R5F523E5KDFM#30 implements the RXv2 CPU core with IEEE 754-compliant 32-bit floating-point unit, 5-stage pipeline, and memory protection unit (MPU). Its analog subsystem centers on the DSADB module-featuring fourth- and fifth-order sinc digital filters, simultaneous 50/60 Hz rejection, and offset/gain error calibration-synchronized to PCLKC up to 16 MHz.
Digital integration includes ELC-driven event-triggered operation across peripherals (e.g., MTU2a PWM start triggers for ADC conversion), dual-clock domain operation (ICLK for CPU, PCLKx for peripherals), and hardware-assisted safety functions including RAM test via DOC, A/D self-diagnostic, and IWDT with dedicated 15-kHz oscillator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC Harvard architecture, 32 MHz max, 64 DMIPS, IEEE 754 FPU, MPU |
| Flash / RAM / Data Flash | 128 KB code flash (no-wait at 32 MHz), 16 KB SRAM, 8 KB data flash (1M erase cycles) |
| Delta-Sigma ADC | 24-bit resolution, ±10-V input range via HVAIN pins, 125 kSPS max, 4 sinc filter configurations |
| PGA & Reference | Rail-to-rail PGA (gain = 1–128), 2.5 V reference (8 ppm/°C drift), ±10 mA output |
| Excitation & Diagnostics | Two programmable excitation current sources (50–1000 µA, ±0.2% matching), IEC60730 self-test assist |
| Communication | CAN 2.0B (1 channel, 1 Mbps), SCIg ×6, RIIC ×1, RSPI ×1, no RTC or LCD in this variant |
| Package & Temp | PLQP0064KB-C: 64-pin LFQFP, 10 × 10 mm, 0.5 mm pitch, –40°C to +85°C (D version) |
Pinout & Package
Package: PLQP0064KB-C - 64-pin Low-Profile Quad Flat Package, 10 × 10 mm body, 0.5 mm lead pitch, exposed thermal pad, 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 12-bit ADC and ±10-V analog front end |
| HVAIN0–HVAIN3 | Analog input | High-voltage differential inputs supporting ±10 V range; internally routed to DSADB with PGA bypass option |
| AVCC0 / AVSS0 | Analog power / ground | Dedicated analog supply pair; enables full ±10-V input range and 12-bit ADC operation |
| IEXC0 / IEXC1 | Excitation current output | Programmable current sources (50–1000 µA) for RTD/bridge sensor biasing; matched within ±0.2% |
| DSADREFP / DSADREFN | Delta-sigma reference | Differential reference inputs for DSADB; accept external reference or internal 2.5 V VREF |
| CANH / CANL | CAN bus interface | Differential physical layer pins compliant with ISO11898-1; require external termination and common-mode choke |
| MTU0A–MTU5A | PWM/complementary output | 16-bit timer outputs supporting complementary PWM, phase counting, and ADC trigger generation |
Key Features
| Feature | Design Value |
|---|---|
| 24-bit Delta-Sigma ADC with 10-V Input | Enables direct connection of industrial sensors (e.g., load cells, strain gauges) without external signal conditioning |
| Programmable Gain Instrumentation Amplifier | Gain = 1–128 with 11 nVRMS noise (gain=128, 3.8 SPS) and 4 nV/°C offset drift supports high-resolution weigh-scale designs |
| Integrated Excitation Current Sources | Two matched 50–1000 µA sources eliminate need for external precision current DACs in RTD or 4-wire bridge applications |
| IEC60730 Safety Support | Hardware-accelerated RAM test (DOC), A/D disconnect detection, clock accuracy monitoring (CAC), and IWDT diagnostics reduce functional safety certification effort |
| Event Link Controller (ELC) | Allows autonomous peripheral chaining (e.g., MTU timer event → ADC conversion → DMA transfer) without CPU intervention, reducing latency and power |
Applications
| Industrial Weigh Scales | Temperature Transmitters (RTD/Thermistor) |
|---|---|
|
Use Scenario: High-accuracy platform scales and hopper load cells measuring 0.001% full scale. IC Role / Device Role / Timing Role: Primary analog acquisition MCU handling 24-bit sigma-delta conversion, PGA gain control, and CAN-based fieldbus communication. Use Value: ±10-V input range and 125 kSPS sampling enable real-time dynamic weighing with <1 µV noise floor and built-in 50/60 Hz rejection. |
Use Scenario: Loop-powered 4–20 mA temperature transmitters using Pt100/Pt1000 RTDs in process automation. IC Role / Device Role / Timing Role: Sensor interface MCU providing excitation current sourcing, ratiometric ADC measurement, linearization, and HART/CAN output. Use Value: Matched excitation sources (±0.2%) and low-drift reference (8 ppm/°C) ensure <0.1°C total system error over –40°C to +85°C. |
| Bridge-Based Pressure Sensors | Energy Metering Front Ends |
|
Use Scenario: Differential pressure transducers with Wheatstone bridge outputs in HVAC and medical gas monitoring. IC Role / Device Role / Timing Role: Precision analog front-end controller performing bridge excitation, PGA amplification, 24-bit digitization, and fault detection. Use Value: Rail-to-rail PGA with gain = 128 and 4 nV/°C offset drift maintains sub-0.01% linearity across industrial temperature ranges. |
Use Scenario: Class 0.2 polyphase energy meters requiring metrology-grade voltage/current channel isolation and calibration. IC Role / Device Role / Timing Role: Metrology co-processor acquiring isolated analog inputs, computing RMS/active/reactive power, and interfacing to host MCU via SCI or CAN. Use Value: Simultaneous 50/60 Hz rejection at 10/54 SPS and offset/gain calibration registers meet IEC62053-22 harmonic immunity requirements. |
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 |
|---|---|---|---|
| R5F523E5LDFP#30 | Same RX23E-B core, 100-pin LFQFP, includes LCD controller, larger package (14×14 mm), same 128 KB flash/16 KB RAM | Required when panel display integration is needed; adds 40×4 segment LCD drive capability not present in R5F523E5KDFM#30 | Select R5F523E5LDFP#30 only if LCD interface is mandatory; otherwise R5F523E5KDFM#30 offers smaller footprint and identical analog performance. |
| ADS131M08IPBSR | Dedicated 24-bit delta-sigma ADC (no MCU), SPI interface, 64-pin TQFP, ±10-V input, 64 kSPS max, no PGA or excitation sources | Used in architectures where host MCU handles processing; lacks integrated computation, safety features, and sensor excitation | R5F523E5KDFM#30 provides full embedded solution with processing, CAN, safety, and excitation; ADS131M08IPBSR suits distributed systems with centralized control. |
Compared with R5F523E5LDFP#30, the R5F523E5KDFM#30 saves board space and cost by omitting LCD circuitry while retaining identical analog measurement capability; compared with ADS131M08IPBSR, it eliminates external MCU dependency and delivers integrated IEC60730 compliance features.
Availability
R5F523E5KDFM#30 is available at Aetrix Electronics and suitable for industrial weigh scales, RTD temperature transmitters, bridge-based pressure sensors, and energy metering front ends requiring stable component supply and long-term production continuity.
Supply support for R5F523E5KDFM#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 infrastructure markets.
The RX23E-B Group is designed specifically for high-accuracy industrial sensing applications requiring integrated 24-bit delta-sigma ADCs, programmable gain amplifiers, excitation sources, and functional safety support-targeting weigh scales, temperature transmitters, and process instrumentation.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5KDFM#30?
The R5F523E5KDFM#30 supports a maximum delta-sigma sampling rate of 125 kSPS at lower resolution settings. At full 24-bit effective resolution with gain = 1 and output data rate = 3.8 SPS, the device achieves 24-bit ENOB. The modulator clock is fixed at 4 MHz (typ.), and oversampling ratios range from 32 to 1,048,576 depending on selected data rate and filter configuration.
Does R5F523E5KDFM#30 support ±10-V analog inputs, and what pins are used?
Yes, R5F523E5KDFM#30 supports ±10-V differential analog inputs via dedicated HVAIN0–HVAIN3 pins. These pins connect directly to the DSADB delta-sigma ADC input multiplexer and require AVCC0 = 4.5–5.5 V and proper external protection circuitry. The device does not include internal level-shifting for higher voltages beyond ±10 V.
What are the excitation current source specifications for R5F523E5KDFM#30?
R5F523E5KDFM#30 integrates two independent excitation current sources (IEXC0 and IEXC1) with programmable output from 50 µA to 1000 µA in six discrete steps. Matching between sources is ±0.2%, and drift matching is 5 ppm/°C. These sources are designed for biasing 2-, 3-, or 4-wire RTDs and resistive bridge sensors without external components.
Is the R5F523E5KDFM#30 pin-compatible with other RX23E-B variants in the same package?
No, R5F523E5KDFM#30 is not guaranteed pin-compatible with other RX23E-B variants in the 64-pin LFQFP (PLQP0064KB-C) package. While pin count and physical footprint match, function allocation differs across variants (e.g., RTC, LCD, or CAN pin assignments vary per product marking). Always verify pin functions using Table 1.4 in R01DS0402EJ0100 for R5F523E5KDFM#30 specifically.
Does R5F523E5KDFM#30 include a real-time clock (RTC) or LCD controller?
No, R5F523E5KDFM#30 does not include an RTC or LCD controller. Per Table 1.2 in the datasheet, the "K" suffix denotes the 10-V analog input variant *without* LCD driver functionality. Similarly, RTC is explicitly listed as "Not supported" for all 64-pin LFQFP variants-including R5F523E5KDFM#30-in the RX23E-B group.
R5F523E5KDFM#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:
R5F523E5KDFM#30 FAQ
1.How can I place an order for R5F523E5KDFM#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5KDFM#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 R5F523E5KDFM#30 reliable?
The price and inventory of R5F523E5KDFM#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5KDFM#30 is usually 5 days.
3.What payment methods are accepted for R5F523E5KDFM#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5KDFM#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E5KDFM#30?
R5F523E5KDFM#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5KDFM#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 R5F523E5KDFM#30?
For technical support, including R5F523E5KDFM#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5KDFM#30 requirements.
6.How does Aetrix verify that R5F523E5KDFM#30 is sourced from the original manufacturer or authorized distributors?
All R5F523E5KDFM#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 R5F523E5KDFM#30 meets industry standards.
7.What is the process for return or replacement of R5F523E5KDFM#30?
All R5F523E5KDFM#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5KDFM#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 R5F523E5KDFM#30 part is unused and in its original packaging.
Return procedure for R5F523E5KDFM#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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