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Renesas R5F523E5BGNF#00
- Part No.:
- R5F523E5BGNF#00
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F523E5BGNF#00.pdf
- Description:
- 32BIT MCU RX23E-B 128K HWQFN40 -
- Quantity:
- Payment:
- Shipping:
Inventory:3,083
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Product details
Overview
R5F523E5BGNF#00 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 125 kSPS max sampling rate, ±5-V input range, dual excitation current sources (50–1000 µA), rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), and 1.8–5.5-V single-supply operation. It targets load cell, pressure transducer, and strain gauge signal conditioning systems requiring IEC60730-compliant self-test capability.
For engineers reviewing the R5F523E5BGNF#00 datasheet, R5F523E5BGNF#00 pinout, R5F523E5BGNF#00 application, or R5F523E5BGNF#00 equivalent, key selection criteria include its 40-pin HWQFN package with HVAIN support, 128 KB flash/16 KB SRAM configuration, integrated ±5-V analog front end, CAN 2.0B interface, and -40°C to +105°C extended temperature grade.
Technical Context
The R5F523E5BGNF#00 implements the RXv2 CPU core at up to 32 MHz (64 DMIPS), with IEEE 754-compliant FPU, memory protection unit (MPU), and event link controller (ELC) enabling low-CPU-load peripheral coordination. Its analog subsystem centers on the DSADB module-synchronized to PCLKC (≤16 MHz)-with fourth- and fifth-order sinc digital filters, simultaneous 50/60 Hz rejection at 10/54 SPS, and offset/gain error calibration.
Digital integration includes one CAN channel (ISO 11898-1, up to 1 Mbps), six SCIg interfaces (asynchronous/clock-sync/smart card), one RIIC (I²C/SMBus), one RSPI (up to 16 Mbps), and four-channel DMAC. Power management supports three low-power modes, LPT operation during software standby, and voltage detection across three independent LVD circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit, 32 MHz max - delivers 64 DMIPS with IEEE 754 FPU and DSP instructions for real-time sensor math. |
| Flash / SRAM / Data Flash | 128 KB / 16 KB / 8 KB - supports field firmware updates and parameter storage with 1M erase cycles. |
| 24-bit Delta-Sigma ADC | 8-channel differential input, 125 kSPS max, ±5-V input range - enables direct connection to bridge sensors without external signal conditioning. |
| Programmable Gain Amplifier | Gain = 1–128, rail-to-rail input, 11 nVRMS noise @ gain=128 - preserves SNR for microvolt-level signals from precision transducers. |
| Excitation Current Sources | Two channels, 50–1000 µA, ±0.2% matching - provides matched excitation for dual-element load cells or RTD 4-wire measurements. |
| Operating Temperature | –40°C to +105°C (G-grade) - qualified for under-hood automotive and industrial control cabinet deployment. |
| Package | PWQN0040KD-A, 40-pin HWQFN, 6 × 6 mm, 0.5 mm pitch - compact footprint with exposed thermal pad for thermally demanding analog designs. |
Pinout & Package
PWQN0040KD-A is a 40-pin HWQFN package with 6 × 6 mm body, 0.5 mm pitch, and exposed thermal pad (pin 40). Designed for high-density PCB layouts, it supports 13 GPIOs (including 2 × 5-V tolerant), dedicated HVAIN pins (±5 V), AVCC0/AVSS0 analog supply rails, and full debug access via FINE interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Core power supply | 1.8–5.5 V digital supply; decoupling required per Renesas layout guidelines to maintain ADC accuracy. |
| AVCC0, AVSS0 | Analog power domain | 4.5–5.5 V analog supply; separate from VCC to minimize digital noise coupling into 24-bit ADC path. |
| HVAIN0–HVAIN1 | High-voltage analog inputs | ±5-V input range pins; accept direct bridge sensor outputs without external op-amp buffering or level shifting. |
| IEXC0, IEXC1 | Excitation current outputs | Matched 50–1000 µA current sources; enable 4-wire RTD or dual-element strain gauge excitation with <±0.2% mismatch. |
| DSAD_VREFP, DSAD_VREFN | Delta-sigma ADC reference | Differential reference inputs; support external precision references or internal 2.5 V VREF for ratiometric measurements. |
| MTU0A, MTU0B | Complementary PWM outputs | Drive external gate drivers or motor control FETs; synchronized to ELC for precise timing-critical actuation triggers. |
| CAN_TX, CAN_RX | CAN 2.0B physical layer interface | Direct connection to ISO 11898-2 transceiver; supports 1 Mbps bus speed with built-in protocol engine and 16 message boxes. |
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 fault reporting - reduces functional safety certification effort. |
| Simultaneous 50/60 Hz Rejection | Configurable sinc filter modes (e.g., 5th-order + 1st-order) reject both line frequencies at 10/54 SPS - eliminates need for external notch filters in AC-powered environments. |
| Low-Drift Voltage Reference | 2.5 V output, 8 ppm/°C drift over –40 to +85°C - enables stable ratiometric measurements without external reference ICs. |
| Event Link Controller (ELC) | Direct hardware triggering between peripherals (e.g., MTU timer → DSAD start) - eliminates interrupt latency and CPU overhead in deterministic measurement sequences. |
| Low-Power Timer (LPT) | 16-bit counter running on sub-clock or IWDT oscillator during software standby - enables periodic wake-up for battery-powered sensor nodes without full MCU restart. |
Applications
| Industrial Load Cell Interface | Automotive Pressure Sensor Module |
|---|---|
|
Use Scenario: High-accuracy weight measurement in factory floor scales using 350 Ω full-bridge load cells. IC Role / Device Role / Timing Role: Primary signal conditioner and controller; digitizes mV-level bridge output, performs linearization and temperature compensation, and communicates calibrated weight via CAN. Use Value: Integrated PGA, excitation sources, and 24-bit DSAD eliminate 4 external op-amps and reference ICs, reducing BOM cost and board area by >35%. |
Use Scenario: Tire pressure monitoring system (TPMS) ECU with embedded pressure and temperature sensing. IC Role / Device Role / Timing Role: Analog front-end and system controller; conditions piezoresistive pressure sensor output, reads internal temperature sensor, and transmits data over CAN bus. Use Value: ±5-V HVAIN pins accept raw sensor output directly; 105°C rating ensures reliability in wheel well mounting; built-in LVD and IWDT meet ASIL-B diagnostic coverage requirements. |
| Smart Flow Meter Transmitter | Industrial Strain Gauge Monitor |
|
Use Scenario: Electromagnetic flow meter with 4–20 mA HART output and local display. IC Role / Device Role / Timing Role: Precision ADC subsystem and communication hub; digitizes induced voltage from flow tube electrodes, runs flow calculation algorithm, and manages SCI-based HART modem interface. Use Value: Simultaneous 50/60 Hz rejection suppresses electromagnetic interference from nearby motors; 125 kSPS sampling captures fast transient flow events without aliasing. |
Use Scenario: Structural health monitoring of bridges using bonded foil strain gauges in harsh outdoor environments. IC Role / Device Role / Timing Role: Low-power data acquisition node; performs periodic strain readings, stores trend data in Data Flash, and wakes periodically to transmit via RSPI to gateway. Use Value: Software standby mode with LPT wake-up extends battery life to >5 years; ±0.2% excitation current matching ensures <0.1% measurement drift across temperature. |
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 |
|---|---|---|---|
| R5F523E5KGNF#00 | Same 40-pin HWQFN package, 128 KB flash, but supports ±10-V analog input range via HVAIN pins. | Required for sensors with >±5 V output (e.g., certain piezoelectric accelerometers). | Select when analog input span exceeds ±5 V; otherwise R5F523E5BGNF#00 offers identical performance at lower cost. |
| R5F523E5BDNF#00 | Identical specs and package, but D-grade (–40°C to +85°C) instead of G-grade. | Suitable for commercial/industrial enclosures not exposed to extreme ambient heat. | Choose for cost-sensitive applications where extended temperature range is unnecessary. |
Compared with R5F523E5KGNF#00 and R5F523E5BDNF#00, the R5F523E5BGNF#00 uniquely balances ±5-V analog input capability, 105°C operation, and 40-pin compactness-making it optimal for space-constrained, thermally demanding industrial sensor nodes where 10-V input headroom is unnecessary.
Availability
R5F523E5BGNF#00 is available at Aetrix Electronics and suitable for industrial sensor transmitters, automotive pressure modules, smart flow meters, and structural health monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F523E5BGNF#00 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.
The RX23E-B Group is designed specifically for high-accuracy sensor signal conditioning, integrating precision analog front ends with robust real-time control and functional safety features for industrial automation and automotive sensing.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5BGNF#00?
The R5F523E5BGNF#00 supports a maximum sampling rate of 125 kSPS for its 24-bit delta-sigma ADC. This rate is achievable with appropriate modulator clock configuration (fMOD = 4 MHz) and digital filter selection. At lower data rates (e.g., 10 or 54 SPS), the device provides simultaneous 50 Hz and 60 Hz line-frequency rejection, critical for AC-noise environments. The R5F523E5BGNF#00 maintains effective resolution up to 24 bits at 3.8 SPS with gain = 1.
Does R5F523E5BGNF#00 support ±10-V analog inputs?
No, the R5F523E5BGNF#00 supports a maximum analog input range of ±5 V on its HVAIN pins. For ±10-V input capability, Renesas offers the pin-compatible R5F523E5KGNF#00 variant, which shares the same 40-pin HWQFN package and 128 KB flash configuration but is rated for the higher input voltage range. The R5F523E5BGNF#00 is optimized for sensors operating within the ±5-V window, such as most strain gauges and pressure transducers.
What debugging interface does R5F523E5BGNF#00 use?
The R5F523E5BGNF#00 uses the FINE (Fast IN-Circuit Emulator) interface for on-chip debugging. This 4-pin serial interface supports full-speed execution, breakpoint setting, register and memory inspection, and flash programming via Renesas E1 or E2 emulator hardware. The FINE interface is implemented on dedicated pins (MD, RD, TD, RES#) and requires no additional GPIO resources, preserving all I/O for application use.
Can R5F523E5BGNF#00 operate from a 1.8-V supply?
Yes, the R5F523E5BGNF#00 operates from a single 1.8-V to 5.5-V supply for its VCC domain. At 1.8–2.4 V, the maximum CPU frequency is 8 MHz; at 2.4–2.7 V, it increases to 16 MHz; and at 2.7–5.5 V, it achieves the full 32 MHz. The analog domain (AVCC0) requires 4.5–5.5 V for optimal 24-bit ADC performance, though the 12-bit S12AD can function down to 1.8 V. This multi-voltage flexibility enables low-power operation while maintaining analog precision.
Is the R5F523E5BGNF#00 pin-compatible with other RX23E-B variants in the 40-pin HWQFN package?
Yes, all RX23E-B Group devices in the PWQN0040KD-A package-including R5F523E5BGNF#00, R5F523E5KGNF#00, R5F523E5MGNF#00, R5F523E6BGNF#00, and R5F523E6KGNF#00-share identical pinouts and mechanical dimensions. This allows hardware design reuse across performance grades (128 KB vs. 256 KB flash), analog input ranges (±5 V vs. ±10 V), and sampling rates (125 kSPS vs. 31.25 kSPS), simplifying platform scalability and inventory management.
R5F523E5BGNF#00 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- 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:
- 13
- 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 6x12b SAR, 4x24b Sigma-Delta; D/A 1x16b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F523E5BGNF#00 FAQ
1.How can I place an order for R5F523E5BGNF#00 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5BGNF#00 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 R5F523E5BGNF#00 reliable?
The price and inventory of R5F523E5BGNF#00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5BGNF#00 is usually 5 days.
3.What payment methods are accepted for R5F523E5BGNF#00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5BGNF#00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E5BGNF#00?
R5F523E5BGNF#00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5BGNF#00 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 R5F523E5BGNF#00?
For technical support, including R5F523E5BGNF#00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5BGNF#00 requirements.
6.How does Aetrix verify that R5F523E5BGNF#00 is sourced from the original manufacturer or authorized distributors?
All R5F523E5BGNF#00 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 R5F523E5BGNF#00 meets industry standards.
7.What is the process for return or replacement of R5F523E5BGNF#00?
All R5F523E5BGNF#00 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5BGNF#00, 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 R5F523E5BGNF#00 part is unused and in its original packaging.
Return procedure for R5F523E5BGNF#00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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