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Renesas R5F523E5AGNF#20
- Part No.:
- R5F523E5AGNF#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F523E5AGNF#20.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:490
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Product details
Overview
R5F523E5AGNF#20 from Renesas is a 32-bit RXv2 core MCU optimized for high-precision industrial sensor signal conditioning, featuring dual 24-bit delta-sigma ADCs (23-bit ENOB at 7.6 SPS), rail-to-rail programmable gain instrumentation amplifiers (gain 1–128), on-chip 2.5 V voltage reference (10 ppm/°C drift), and integrated excitation current sources (50–1000 µA). It operates at up to 32 MHz with 128 KB flash, 16 KB SRAM, and supports IEC60730-compliant diagnostics.
For engineers reviewing the R5F523E5AGNF#20 datasheet, R5F523E5AGNF#20 pinout, R5F523E5AGNF#20 application, or R5F523E5AGNF#20 equivalent, this device is selected for high-accuracy weigh scales, temperature transmitters, and resistance-based sensor interfaces where low-drift analog front-end performance, embedded self-test, and CAN bus connectivity are required.
Technical Context
The R5F523E5AGNF#20 integrates two independent 24-bit delta-sigma A/D converters with fourth-order sinc filters, simultaneous 50/60 Hz rejection, and per-channel PGA configuration. Its analog subsystem includes four excitation current sources (±0.2% matching), bias voltage generator, low-side switch (10 Ω), and dual reference inputs (REF0P/N, REF1P/N) supporting external or internal VREF.
Digital architecture centers on the RXv2 CPU core (64 DMIPS @ 32 MHz) with FPU, MPU, ELC event routing, and peripheral clock domain separation (ICLK/PCLKA/PCLKB/PCLKD/FCLK). It implements one CAN 2.0B channel (1 Mbps), three SCIg channels, one SCIh (LIN-capable), one RIIC, one RSPI, and supports background operation (BGO) for data flash.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC Harvard, 32 MHz max, 64 DMIPS, IEEE754 FPU, 23 DSP instructions |
| Flash / SRAM / Data Flash | 128 KB code flash (no-wait @ 32 MHz), 16 KB SRAM (no-wait), 8 KB data flash (1M erase cycles) |
| Delta-Sigma ADC | Two 24-bit units, 23-bit effective resolution @ 7.6 SPS, 50/60 Hz rejection, sinc⁴ filter |
| PGA & Reference | Rail-to-rail PGA (gain 1–128), 2.5 V internal VREF (10 ppm/°C drift, ±10 mA), AVCC0 = 2.7–5.5 V |
| Excitation & Analog IO | Four IEXC outputs (50–1000 µA, ±0.2% matching), 11 single-ended / 6 differential analog inputs, LSW (10 Ω) |
| Communication | CAN 2.0B (1 channel, 1 Mbps), SCIg ×3, SCIh ×1 (LIN), RIIC ×1 (400 kbps), RSPI ×1 (16 Mbps) |
| Package & Temp | 40-pin HWQFN (PWQN0040KD-A), 6 × 6 mm, 0.5 mm pitch, –40°C to +105°C (G grade) |
Pinout & Package
Package: 40-pin HWQFN (PWQN0040KD-A), 6 × 6 mm body, 0.5 mm pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS / AVCC0 / AVSS0 | Power supply rails | Digital core (1.8–5.5 V), analog domain (2.7–5.5 V), separate ground planes for noise isolation |
| REF0P/REF0N, REF1P/REF1N | Delta-sigma ADC reference inputs | Accept external or internal 2.5 V reference; enable ratiometric or absolute measurement modes |
| AIN0–AIN11 | Analog input terminals | Support differential, pseudo-differential, or single-ended connections; routed via AMUX to DSAD0/DSAD1 |
| IEXC0–IEXC3 | Excitation current outputs | Programmable 50–1000 µA sourcing; matched within ±0.2% for 4-wire RTD/strain gauge bridges |
| LSW | Low-side switch output | 10 Ω on-resistance, 30 mA max sink; enables active sensor biasing and fault-safe current path control |
| CRXD0 / CTXD0 | CAN physical layer interface | Differential receiver/transmitter pins compliant with ISO11898-1; require external CAN transceiver |
| P14–P17, PB0–PB1, PC4–PC5, PH0–PH1 | General-purpose I/O | 5-V tolerant, configurable pull-up/open-drain; support ELC-triggered peripheral activation in sleep mode |
Key Features
| Feature | Design Value |
|---|---|
| IEC60730 Self-Diagnostic Support | Integrated RAM test assist, A/D disconnect detection, clock accuracy monitoring (CAC), IWDT calibration, and DOC-based data integrity checks |
| Synchronized Dual Delta-Sigma Conversion | Inter-unit A/D start synchronization enables simultaneous sampling across two 24-bit ADCs for multi-sensor coherence |
| Low-Power Precision Operation | Software standby mode with LPT running from IWDT oscillator; DSAD low-power mode (1.9–3906 SPS) extends battery life in portable instruments |
| Event Link Controller (ELC) | 56 event sources directly trigger peripheral actions (e.g., MTU PWM start, DSAD conversion) without CPU wake-up or interrupt latency |
| On-Chip Voltage Reference | 2.5 V output with 10 ppm/°C drift and ±10 mA drive capability eliminates need for external precision reference in most bridge sensor applications |
Applications
| Weigh Scale Controller | Temperature Transmitter (RTD/Thermocouple) |
|---|---|
Use Scenario: High-resolution digital weight display with load cell bridge sensing and local HMI. IC Role / Device Role / Timing Role: Primary signal conditioner and controller; performs PGA gain selection, DSAD oversampling, linearization, and CAN-based fieldbus reporting. Use Value: 23-bit ENOB and 10 nV/°C offset drift ensure sub-gram repeatability over industrial temperature range without recalibration. |
Use Scenario: 4–20 mA loop-powered temperature transmitter using Pt100 RTD with cold-junction compensation. IC Role / Device Role / Timing Role: Analog front-end processor and loop controller; manages 4-wire RTD excitation, DSAD conversion, TEMPS reading, and DAC-less current output via PWM filtering. Use Value: Four matched IEXC sources and simultaneous 50/60 Hz rejection eliminate line-noise-induced errors in factory environments. |
| Industrial Pressure Sensor Module | Strain Gauge-Based Torque Sensor |
Use Scenario: MEMS pressure sensor signal conditioning with temperature compensation and digital output via CAN. IC Role / Device Role / Timing Role: Dual-ADC acquisition engine; one DSAD for pressure bridge, second for on-die temperature sensor; synchronizes sampling for real-time compensation. Use Value: Gain drift of 1 ppm/°C (PGA) and offset drift of 10 nV/°C enable <±0.1%FS error over –40°C to +105°C without firmware correction tables. |
Use Scenario: Rotary torque transducer with Wheatstone bridge output, requiring high common-mode rejection and dynamic range. IC Role / Device Role / Timing Role: Precision analog capture unit; uses rail-to-rail PGA to maximize SNR from low-level mV/V bridge signals, then applies sinc⁴ filtering before CAN transmission. Use Value: 128× PGA gain and 15625 SPS maximum output data rate support both static calibration and dynamic torque profiling in rotating machinery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision sensor interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F523E5ADNF#20 | Same package and memory, but D-grade (–40°C to +85°C); reduced DSAD differential input count (4 vs. 6 channels) | Lower-cost option for non-extended temperature industrial equipment without full 6-channel differential sensing needs | Select when ambient operating temperature does not exceed +85°C and fewer analog inputs are required. |
| ADS125H02IRHBT | Standalone 24-bit delta-sigma ADC with integrated PGA and reference; no MCU, no CAN, no flash/SRAM | Used with external host MCU where system partitioning separates analog acquisition from control logic | Choose when modular design, higher sampling rates (>30 kSPS), or ultra-low noise (<10 nVRMS) are prioritized over integrated firmware execution. |
Compared with R5F523E5ADNF#20, the R5F523E5AGNF#20 provides extended temperature operation and full 6-channel differential DSAD support; versus ADS125H02IRHBT, it delivers embedded processing, diagnostics, and CAN communication in a single chip-reducing BOM count and PCB area for compact sensor nodes.
Availability
R5F523E5AGNF#20 is available at Aetrix Electronics and suitable for industrial process transmitters, smart load cells, and embedded temperature/pressure sensors requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability validation.
Supply support for R5F523E5AGNF#20 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-A Group targets high-accuracy sensor signal conditioning applications, integrating precision analog front-ends with robust MCU functionality to replace discrete signal chains in industrial measurement systems.
FAQ
What is the maximum effective resolution and data rate of the delta-sigma ADCs in R5F523E5AGNF#20?
The R5F523E5AGNF#20 features two 24-bit delta-sigma A/D converters with up to 23-bit effective resolution (ENOB) at 7.6 SPS in normal mode. Maximum output data rate is 15,625 SPS. Oversampling ratio is configurable from 32 to 65,536 (multiples of 16), and sinc⁴ filtering enables simultaneous 50 Hz/60 Hz rejection at specific data rates including 10 and 54 SPS. These values are measured under specified conditions in the R5F523E5AGNF#20 datasheet.
Does R5F523E5AGNF#20 support IEC60730 Class B compliance out of the box?
Yes, the R5F523E5AGNF#20 includes hardware-assisted IEC60730 Class B functions: RAM test assistance via DOC, A/D converter disconnect detection, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT) self-test, and voltage detector diagnostics. These features reduce software certification effort but require proper implementation per Renesas' functional safety application notes for full compliance validation of R5F523E5AGNF#20.
How many excitation current sources does R5F523E5AGNF#20 provide, and what are their key specifications?
The R5F523E5AGNF#20 provides four excitation current sources (IEXC0–IEXC3) with programmable output from 50 µA to 1000 µA in six discrete steps. Key specs include ±0.2% current matching between channels and 5 ppm/°C drift matching-critical for 4-wire RTD and strain gauge measurements. Each source can be individually enabled and routed to AIN pins via the analog multiplexer, as confirmed in the R5F523E5AGNF#20 datasheet Section 1.4.
What is the role of the low-side switch (LSW) pin in R5F523E5AGNF#20, and what are its electrical limits?
The LSW pin in R5F523E5AGNF#20 is a dedicated low-side switch output with a maximum on-resistance of 10 Ω and rated for up to 30 mA continuous sink current. It is used to actively control sensor bias paths-such as enabling/disabling bridge excitation or grounding reference nodes-and supports fault detection by monitoring voltage drop across the switch. This function is documented in the R5F523E5AGNF#20 analog block diagram and pin function table.
Can R5F523E5AGNF#20 operate with a single supply voltage, and what is the supported range?
Yes, the R5F523E5AGNF#20 operates from a single 1.8 V to 5.5 V supply on VCC. Core logic runs at 32 MHz only when VCC ≥ 2.7 V; at 2.4–2.7 V, max frequency is 16 MHz; below 2.4 V, max is 8 MHz. The analog domain (AVCC0) requires 2.7–5.5 V for full DSAD/S12AD operation, though S12AD alone functions down to 1.8 V. All voltage ranges are specified in the R5F523E5AGNF#20 datasheet Section 1.1.
R5F523E5AGNF#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- Series:
- RX23E-A
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RXv2
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- CANbus, I2C, SCI, SPI
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 20
- 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 4x24b, 12x12b Sigma-Delta
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F523E5AGNF#20 FAQ
1.How can I place an order for R5F523E5AGNF#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5AGNF#20 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 R5F523E5AGNF#20 reliable?
The price and inventory of R5F523E5AGNF#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5AGNF#20 is usually 5 days.
3.What payment methods are accepted for R5F523E5AGNF#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5AGNF#20 transactions.
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4.How is shipping managed for R5F523E5AGNF#20?
R5F523E5AGNF#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5AGNF#20 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 R5F523E5AGNF#20?
For technical support, including R5F523E5AGNF#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5AGNF#20 requirements.
6.How does Aetrix verify that R5F523E5AGNF#20 is sourced from the original manufacturer or authorized distributors?
All R5F523E5AGNF#20 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 R5F523E5AGNF#20 meets industry standards.
7.What is the process for return or replacement of R5F523E5AGNF#20?
All R5F523E5AGNF#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5AGNF#20, 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 R5F523E5AGNF#20 part is unused and in its original packaging.
Return procedure for R5F523E5AGNF#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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