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Renesas R5F523E5BGFM#10
- Part No.:
- R5F523E5BGFM#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F523E5BGFM#10.pdf
- Description:
- 32BIT MCU RX23E-B 128K LFQFP64 F
- Quantity:
- Payment:
- Shipping:
Inventory:2,039
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Product details
Overview
R5F523E5BGFM#10 from Renesas is a 32-bit RXv2 core MCU optimized for high-precision analog measurement in industrial sensor nodes and metering systems. 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 128 KB flash/16 KB SRAM - all operating at up to 32 MHz within –40°C to +105°C ambient range.
For engineers reviewing the R5F523E5BGFM#10 datasheet, R5F523E5BGFM#10 pinout, R5F523E5BGFM#10 application, or R5F523E5BGFM#10 equivalent, this device serves as a system-on-chip solution for bridge sensor signal conditioning, precision weight scales, and industrial process transmitters where low-drift analog front-end performance and IEC60730-compliant self-test are required.
Technical Context
The R5F523E5BGFM#10 implements a dedicated analog subsystem centered on its DSADB unit: a 24-bit delta-sigma ADC with fourth- and fifth-order sinc digital filters, selectable reference voltage (internal 2.5 V or external), and simultaneous 50/60 Hz rejection at 10/54 SPS. Its AFE includes two independent excitation current sources with ±0.2% matching and 5 ppm/°C drift, plus a low-side switch (10 Ω max) for sensor excitation control.
It pairs the analog precision with deterministic real-time control via the RXv2 CPU (64 DMIPS @ 32 MHz), ELC for interrupt-free peripheral coordination, and hardware CRC/DOC for functional safety diagnostics - enabling single-chip compliance with Class B IEC60730 requirements without external support ICs.
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 digital filtering in firmware. |
| Flash / SRAM | 128 KB on-chip flash (no wait states @ 32 MHz), 16 KB SRAM - sufficient for dual-bank firmware updates and large calibration tables. |
| 24-bit Delta-Sigma ADC | 8-channel differential input, 125 kSPS max, 24-bit effective resolution @ 3.8 SPS (gain = 1), ±10-V HVAIN pins - supports direct connection to load cells and strain gauges. |
| Programmable Gain IA | Rail-to-rail PGA with gain = 1–128, 11 nVRMS noise @ gain = 128, offset drift 4 nV/°C - delivers stable gain accuracy across industrial temperature range. |
| Excitation Current Sources | Two channels, 50–1000 µA programmable output, ±0.2% matching, 5 ppm/°C drift - enables precise ratiometric bridge measurements with matched sourcing. |
| Operating Temp Range | –40°C to +105°C (G-version), qualified for extended industrial environments including motor control cabinets and outdoor metering enclosures. |
| Package | 64-pin LFQFP (PLQP0064KB-C), 10 × 10 mm, 0.5 mm pitch - compatible with standard reflow profiles and automated optical inspection. |
Pinout & Package
64-pin Low-Profile Quad Flat Package (LFQFP), PLQP0064KB-C, 10 × 10 mm body, 0.5 mm pitch, exposed thermal pad. Pin functions verified per Renesas R01DS0402EJ0100 datasheet Section 1.4 (Pin Functions) and Table 1.2 (Function Comparison).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC (1.8–5.5 V core), AVCC0 (4.5–5.5 V analog) - enables clean separation of digital noise from precision analog paths. |
| HVAIN0–HVAIN3 | Analog input (high-voltage) | ±10-V tolerant differential inputs - directly interface 10-V bridge sensors without external level-shifting or attenuation. |
| IEXC0 / IEXC1 | Excitation current output | Matched, programmable current sources (50–1000 µA) - drive Wheatstone bridges with ratiometric accuracy and minimal thermal EMF. |
| AVREFH / AVREFL | Analog reference inputs | Accept internal 2.5 V reference or external reference - supports flexible reference selection for varying full-scale ranges. |
| MTU0–MTU5 | Multi-function timer I/O | 6 × 16-bit timer channels with complementary PWM, phase counting, and A/D trigger generation - synchronize analog sampling with motor control timing. |
| SCI0–SCI9, RSPI, RIIC, RSCAN | Communication interfaces | 7 × SCI, 1 × RSPI, 1 × I2C, 1 × CAN - enable local sensor aggregation (CAN bus) and host connectivity (RS485 via SCI, I2C to display). |
Key Features
| Feature | Design Value |
|---|---|
| IEC60730 Self-Diagnostic Support | Hardware-assisted RAM test (DOC), A/D converter disconnect detection, clock accuracy monitoring (CAC), and IWDT validation - reduces software certification effort for Class B compliance. |
| Simultaneous 50/60 Hz Rejection | Configurable sinc filter modes (e.g., fifth-order + first-order) achieve >100 dB rejection at line frequencies - eliminates need for external notch filters in AC-powered installations. |
| Low-Drift Voltage Reference | 2.5 V output, 8 ppm/°C drift over –40°C to +85°C - ensures stable ADC full-scale calibration across temperature without recalibration. |
| Event Link Controller (ELC) | Direct hardware linkage between peripherals (e.g., MTU trigger → DSAD start) without CPU intervention - reduces latency and jitter in time-critical sampling sequences. |
| On-Chip Excitation Bias | VBIAS = (AVCC0 + AVSS0)/2 - provides precise mid-supply common-mode voltage for differential sensor interfaces, eliminating external resistor dividers. |
Applications
| Industrial Weight Scale | Process Pressure Transmitter |
|---|---|
|
Use Scenario: High-accuracy weighing system for tank-level or conveyor-belt mass measurement under varying ambient temperatures. IC Role / Device Role / Timing Role: Primary signal conditioner and controller: conditions mV/V bridge output, performs digital filtering, executes linearization/calibration, and communicates via CAN or RS485. Use Value: 24-bit ADC resolution + 4 nV/°C offset drift enables <0.01% FS repeatability over –40°C to +105°C without hardware recalibration. |
Use Scenario: Smart pressure transmitter with HART or Modbus RTU output for oil & gas pipeline monitoring. IC Role / Device Role / Timing Role: Analog front-end + MCU: digitizes piezoresistive sensor output, runs diagnostic routines (IEC60730), manages loop-powered 4–20 mA DAC (via external circuit), and handles protocol stack. Use Value: Integrated excitation sources with ±0.2% matching ensure ratiometric accuracy; on-chip 2.5 V reference eliminates external reference IC, reducing BOM count. |
| Energy Meter Sensor Interface | High-Precision Temperature Logger |
|
Use Scenario: Anti-tamper electricity meter with shunt-based current sensing and voltage monitoring. IC Role / Device Role / Timing Role: Dual-path analog acquisition: DSADB measures shunt voltage (±10 V range), S12ADE monitors supply rails; CPU computes RMS, harmonics, and tamper flags. Use Value: Simultaneous 50/60 Hz rejection at 10/54 SPS suppresses mains interference without software post-processing, improving metrology accuracy. |
Use Scenario: Battery-powered environmental logger using thermistor or RTD sensors in HVAC ducts or cold-chain transport. IC Role / Device Role / Timing Role: Low-power sensor hub: wakes periodically via LPT, excites sensor (IEXC), acquires data (DSADB), stores in Data Flash, then returns to software standby. Use Value: Three low-power modes + LPT running during software standby enable multi-year battery life; 8 Kbytes Data Flash supports 1M erase cycles for long-term logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision analog MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F523E5KDFM#10 | Same package and core, but D-version (–40°C to +85°C); 10-V analog input range retained; no LCD driver. | Suitable for commercial/industrial equipment with lower ambient temperature requirements. | Select when extended temperature grade is unnecessary and cost optimization is prioritized. |
| R5F523E6BGFM#10 | G-version with 256 KB flash/32 KB SRAM; identical analog specs and package; higher memory supports larger firmware with OTA update capability. | Preferred for field-upgradable devices requiring secure boot, encryption, or advanced communication stacks. | Choose when future firmware expansion, security features, or dual-bank updates are needed. |
Compared with R5F523E5BGFM#10, R5F523E5KDFM#10 trades extended temperature qualification for lower cost, while R5F523E6BGFM#10 adds memory headroom without altering analog performance - enabling scalable design reuse across product tiers.
Availability
R5F523E5BGFM#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, precision metering systems, and process transmitters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F523E5BGFM#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 applications.
The RX23E-B Group targets high-precision measurement systems, integrating ultra-low-drift analog front-ends with robust real-time MCUs to eliminate external signal-conditioning components in industrial sensor designs.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5BGFM#10?
The R5F523E5BGFM#10 supports a maximum sampling rate of 125 kSPS for its 24-bit delta-sigma ADC (DSADB). This rate is achievable with reduced effective resolution and specific filter configurations; at 3.8 SPS, it achieves 24-bit effective resolution with gain = 1. The device also supports lower rates (e.g., 10/54 SPS) for simultaneous 50/60 Hz rejection - a key capability for AC-line-noise immunity in industrial environments. All settings are configurable via register writes in the DSADB module.
Does R5F523E5BGFM#10 include an integrated voltage reference, and what are its specifications?
Yes, the R5F523E5BGFM#10 includes an on-chip voltage reference (VREF) with a nominal output of 2.5 V, temperature drift of 8 ppm/°C over –40°C to +85°C, and output current capability of ±10 mA. This reference is used by the 24-bit delta-sigma ADC and can be selected as the conversion reference source. The device also supports external reference inputs via AVREFH/AVREFL pins, allowing flexibility for applications requiring higher accuracy or different full-scale ranges.
How many excitation current sources does R5F523E5BGFM#10 provide, and what are their key electrical characteristics?
The R5F523E5BGFM#10 provides two independent excitation current sources (IEXC0 and IEXC1), each programmable from 50 µA to 1000 µA in discrete steps. Key characteristics include ±0.2% current matching between channels and 5 ppm/°C drift matching - critical for ratiometric bridge measurements. These sources are designed to drive resistive sensors (e.g., strain gauges, RTDs) with minimal thermal EMF and are fully integrated into the analog multiplexer routing for flexible sensor interfacing.
Is R5F523E5BGFM#10 qualified for operation at +105°C ambient temperature?
Yes, the R5F523E5BGFM#10 is the G-version part, rated for operation from –40°C to +105°C ambient temperature. This extended temperature qualification is explicitly indicated by the "G" in the part number and confirmed in Table 1.3 of the R01DS0402EJ0100 datasheet. It is suitable for deployment in high-temperature industrial enclosures, motor control cabinets, and outdoor metering applications where thermal management is constrained.
What communication interfaces are available on R5F523E5BGFM#10, and which support industrial protocols?
The R5F523E5BGFM#10 includes seven SCI channels (SCIg), one SCIh (LIN-capable), one I2C bus interface (RIICa), one RSPI channel, and one CAN 2.0B module (RSCAN). The CAN interface complies with ISO11898-1 and supports up to 1 Mbps - making it suitable for industrial fieldbus integration. SCIh supports LIN physical layer framing, and multiple SCI channels can be configured for RS485/RS232 via external transceivers, enabling Modbus RTU or custom protocol implementations.
R5F523E5BGFM#10 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:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F523E5BGFM#10 FAQ
1.How can I place an order for R5F523E5BGFM#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5BGFM#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 R5F523E5BGFM#10 reliable?
The price and inventory of R5F523E5BGFM#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5BGFM#10 is usually 5 days.
3.What payment methods are accepted for R5F523E5BGFM#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5BGFM#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E5BGFM#10?
R5F523E5BGFM#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5BGFM#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 R5F523E5BGFM#10?
For technical support, including R5F523E5BGFM#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5BGFM#10 requirements.
6.How does Aetrix verify that R5F523E5BGFM#10 is sourced from the original manufacturer or authorized distributors?
All R5F523E5BGFM#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 R5F523E5BGFM#10 meets industry standards.
7.What is the process for return or replacement of R5F523E5BGFM#10?
All R5F523E5BGFM#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5BGFM#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 R5F523E5BGFM#10 part is unused and in its original packaging.
Return procedure for R5F523E5BGFM#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F523E5BGFM#10 Tags
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