My Inquiry
My Account
Renesas R5F523E5BDNF#00
- Part No.:
- R5F523E5BDNF#00
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F523E5BDNF#00.pdf
- Description:
- 32BIT MCU RX23E-B 128K HWQFN40 F
- Quantity:
- Payment:
- Shipping:
Inventory:2,862
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F523E5BDNF#00 from Renesas is a 32-bit RXv2 microcontroller optimized for high-precision analog measurement in industrial sensor nodes and metering systems. It integrates a 24-bit delta-sigma ADC with 125 kSPS max sampling rate, ±5-V input range, 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.
For engineers reviewing the R5F523E5BDNF#00 datasheet, R5F523E5BDNF#00 pinout, R5F523E5BDNF#00 application, or R5F523E5BDNF#00 equivalent, this MCU delivers calibrated high-resolution analog front-end performance with integrated CAN, SCI, I²C, and RSPI interfaces - critical for load cell, strain gauge, and RTD-based measurement systems requiring IEC 60730 compliance and low-power operation.
Technical Context
The R5F523E5BDNF#00 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, memory protection unit (MPU), and event link controller (ELC) enabling interrupt-free peripheral coordination during CPU sleep. Its analog subsystem centers on the DSADB module - a 24-bit delta-sigma ADC with fourth- and fifth-order sinc filters, simultaneous 50/60 Hz rejection at 10/54 SPS, and ±10-mV offset error (typ.) after calibration.
Digital integration includes a 1-channel 16-bit DAC (±5 LSB INL), 12-bit S12AD converter (1.4 µs conversion), dual excitation current sources (±0.2% matching), and a low-drift 2.5-V voltage reference (8 ppm/°C). Power management supports three low-power modes, software standby with LPT operation, and supply monitoring across 1.8–5.5 V.
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 / SRAM / Data Flash | 128 KB on-chip flash (no wait states @32 MHz), 16 KB SRAM, 8 KB data flash (1M erase cycles) |
| 24-bit Delta-Sigma ADC | 8-channel differential input, 125 kSPS max, 24-bit resolution, ±5-V input range, sinc filter options |
| Analog Front End | Rail-to-rail PGA (×1–128), two excitation current sources (50–1000 µA, ±0.2% matching), 2.5-V ref (8 ppm/°C) |
| Communication Interfaces | 1× CAN (ISO 11898-1, 1 Mbps), 6× SCI, 1× I²C (400 kbps), 1× RSPI (16 Mbps) |
| Package & Temp Range | PWQN0040KD-A: 40-pin HWQFN, 6 × 6 mm, 0.5 mm pitch; operating temperature –40°C to +85°C |
Pinout & Package
PWQN0040KD-A is a 40-pin HWQFN package (6 × 6 mm, 0.5 mm pitch) with exposed thermal pad, rated for –40°C to +85°C operation. Pin functions are defined per Renesas R01DS0402EJ0100 Rev.1.00, Table 1.4–1.6.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Main digital supply (1.8–5.5 V); dedicated AVCC0 (4.5–5.5 V) required for 12-bit ADC precision |
| AVCC0 / AVSS0 | Analog power / Analog ground | Independent analog domain supply; enables 12-bit ADC operation down to 1.8 V digital supply |
| HVAIN0–HVAIN1 | High-voltage analog inputs | ±5-V input range pins supporting direct connection to bridge sensors without external level-shifting |
| IEXC0 / IEXC1 | Excitation current outputs | Programmable current sources (50–1000 µA) for RTD or 4-wire load cell biasing with matched drift |
| DSAD0–DSAD7 | Delta-sigma ADC input channels | Support differential, pseudo-differential, or single-ended configurations; configurable per-channel gain and filter |
| SCI0_TXD / SCI0_RXD | Asynchronous serial interface | Full-duplex UART interface with hardware flow control and bit-rate modulation for noise immunity |
| CAN_TX / CAN_RX | CAN physical layer interface | Differential CAN bus transceiver interface compliant with ISO 11898-1; supports 1 Mbps operation |
Key Features
| Feature | Design Value |
|---|---|
| IEC 60730 Class B Support | Integrated self-test for ADC, clock accuracy (CAC), IWDT, RAM (via DOC), and analog disconnect detection |
| Simultaneous 50/60 Hz Rejection | Configurable sinc filter modes enable real-time line-frequency noise cancellation at 10/54 SPS output rates |
| Low-Drift Analog Reference | 2.5-V internal reference with 8 ppm/°C drift over –40°C to +85°C, ±10 mA output capability |
| Background Operation (BGO) | Data flash programming/erasing proceeds concurrently with CPU execution - no firmware stall required |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., timer → ADC start → DMA transfer) without CPU intervention or ISR overhead |
Applications
| Industrial Load Cell Interface | Smart Electricity Metering |
|---|---|
|
Use Scenario: High-accuracy weight measurement in platform scales using 4-wire full-bridge load cells under variable ambient conditions. IC Role / Device Role / Timing Role: Primary signal acquisition MCU with integrated PGA, excitation sources, and 24-bit delta-sigma ADC performing synchronized ratiometric measurements. Use Value: Eliminates external instrumentation amplifiers and reference buffers; achieves <10 ppm linearity error via on-chip offset/gain calibration and 50/60 Hz rejection. |
Use Scenario: Revenue-grade energy metering with polyphase voltage/current sensing and tamper detection. IC Role / Device Role / Timing Role: System-on-chip metrology engine handling isolated current/voltage sampling, harmonic analysis, and secure data logging. Use Value: Single-chip solution meets IEC 62053-21/22 accuracy requirements; 125 kSPS sampling enables 50th harmonic capture at 50 Hz fundamental. |
| RTD-Based Temperature Transmitter | Industrial Pressure Sensor Module |
|
Use Scenario: DIN-rail mounted 4–20 mA temperature transmitter using Pt100/Pt1000 RTDs in harsh factory environments. IC Role / Device Role / Timing Role: Precision analog front-end controller with programmable excitation current, cold-junction compensation, and linearization processing. Use Value: Dual 50–1000 µA excitation sources enable 2-/3-/4-wire RTD configurations; ±0.2% current matching ensures <0.1°C measurement uncertainty. |
Use Scenario: Compact pressure sensor node for HVAC and process control, interfacing piezoresistive bridges with digital output. IC Role / Device Role / Timing Role: Signal conditioning and communication hub converting mV-level bridge outputs into calibrated digital values via CAN or RS485 (SCI). Use Value: Integrated ±5-V HVAIN pins accept unconditioned bridge outputs directly; CAN interface enables daisy-chain topology in distributed sensor networks. |
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 |
|---|---|---|---|
| R5F523E5KDNF#00 | Same package and core; supports ±10-V analog input range (vs. ±5 V on R5F523E5BDNF#00) | Required for direct interface to ±10-V industrial transducers without external attenuation | Select when measuring signals beyond ±5 V full-scale; otherwise R5F523E5BDNF#00 offers optimal cost/performance for ±5-V sensor systems |
| R5F523E5BDFL#00 | 48-pin LFQFP (7 × 7 mm); same analog specs but adds LCD controller (40×4 SEG/COM) | Suitable for local display-integrated meters or HMI-embedded sensor nodes | Choose when local alphanumeric display is needed; R5F523E5BDNF#00 saves board space and cost where display is remote or unnecessary |
Compared with R5F523E5KDNF#00 and R5F523E5BDFL#00, the R5F523E5BDNF#00 provides the most compact 40-pin HWQFN form factor optimized for ±5-V sensor interfacing without LCD overhead - ideal for space-constrained industrial transmitters requiring minimal BOM count and IEC 60730-certifiable analog integrity.
Availability
R5F523E5BDNF#00 is available at Aetrix Electronics and suitable for industrial sensor transmitters, smart metering modules, and RTD temperature transmitters requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for R5F523E5BDNF#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 applications.
The RX23E-B Group - including the R5F523E5BDNF#00 - was designed specifically for high-accuracy, low-power analog measurement in industrial automation, energy metering, and sensor conditioning systems requiring integrated metrology-grade peripherals.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in the R5F523E5BDNF#00?
The R5F523E5BDNF#00 supports a maximum sampling rate of 125 kSPS for its 24-bit delta-sigma ADC (DSADB) when configured with fMOD = 4 MHz. This rate applies to single-channel operation; effective throughput decreases with multi-channel scanning due to filter settling time and channel multiplexing overhead. The device also supports lower rates (e.g., 10 SPS, 54 SPS) for enhanced noise rejection.
Does the R5F523E5BDNF#00 include an integrated voltage reference, and what is its accuracy?
Yes, the R5F523E5BDNF#00 includes an integrated 2.5-V voltage reference with a temperature drift of 8 ppm/°C over –40°C to +85°C and ±10 mA output current capability. This reference is used by both the 24-bit delta-sigma ADC and the 16-bit DAC, and it can also be routed externally for system-level calibration or biasing of external circuitry.
Can the R5F523E5BDNF#00 drive a load cell directly without external amplification?
Yes - the R5F523E5BDNF#00 integrates a rail-to-rail programmable gain instrumentation amplifier (PGA) with gains from ×1 to ×128 and ±5-V input range on HVAIN pins. Combined with its 24-bit delta-sigma ADC and on-chip excitation current sources, it enables direct connection of 350-Ω or 1-kΩ full-bridge load cells without external signal conditioning components.
What communication interfaces are supported by the R5F523E5BDNF#00 for industrial connectivity?
The R5F523E5BDNF#00 supports CAN 2.0B (ISO 11898-1, up to 1 Mbps), six SCI channels (UART/SPI/Smart Card), one I²C interface (400 kbps, SMBus-compatible), and one RSPI channel (16 Mbps). These interfaces enable robust fieldbus connectivity, sensor fusion via multi-drop buses, and host MCU communication in distributed industrial architectures.
Is the R5F523E5BDNF#00 qualified for IEC 60730 Class B functional safety compliance?
Yes - the R5F523E5BDNF#00 includes hardware-assisted self-test features required for IEC 60730 Class B, including ADC diagnostic assist, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT), RAM test support via DOC, and analog input disconnect detection - all documented in Renesas' functional safety manual R01US0421EJ0100.
R5F523E5BDNF#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, 4x24b 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:
R5F523E5BDNF#00 FAQ
1.How can I place an order for R5F523E5BDNF#00 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5BDNF#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 R5F523E5BDNF#00 reliable?
The price and inventory of R5F523E5BDNF#00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5BDNF#00 is usually 5 days.
3.What payment methods are accepted for R5F523E5BDNF#00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5BDNF#00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E5BDNF#00?
R5F523E5BDNF#00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5BDNF#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 R5F523E5BDNF#00?
For technical support, including R5F523E5BDNF#00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5BDNF#00 requirements.
6.How does Aetrix verify that R5F523E5BDNF#00 is sourced from the original manufacturer or authorized distributors?
All R5F523E5BDNF#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 R5F523E5BDNF#00 meets industry standards.
7.What is the process for return or replacement of R5F523E5BDNF#00?
All R5F523E5BDNF#00 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5BDNF#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 R5F523E5BDNF#00 part is unused and in its original packaging.
Return procedure for R5F523E5BDNF#00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F523E5BDNF#00 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
