My Inquiry
My Account
Renesas R5F523E5KDFM#10
- Part No.:
- R5F523E5KDFM#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F523E5KDFM#10.pdf
- Description:
- 32BIT MCU RX23E-B 128K LFQFP64 F
- Quantity:
- Payment:
- Shipping:
Inventory:1,453
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F523E5KDFM#10 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), on-chip excitation current sources (50–1000 µA), and 128 KB flash/16 KB SRAM. It operates at up to 32 MHz and supports IEC60730 safety compliance functions.
For engineers reviewing the R5F523E5KDFM#10 datasheet, R5F523E5KDFM#10 pinout, R5F523E5KDFM#10 application, or R5F523E5KDFM#10 equivalent, this MCU is selected for high-accuracy load cell, strain gauge, and RTD signal conditioning where 24-bit resolution, low-drift PGA, and integrated analog front-end reduce external component count and layout complexity.
Technical Context
The R5F523E5KDFM#10 implements the RXv2 CPU core with IEEE 754-compliant 32-bit FPU, 5-stage CISC Harvard pipeline, and memory protection unit (MPU). 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, and ±10-V HVAIN pins directly interfacing industrial sensors.
Clocking is managed via multiple oscillators: main (1–20 MHz), sub-clock (32.768 kHz), and dedicated IWDT oscillator. The ELC enables event-triggered peripheral operation without CPU wake-up, supporting low-power sensor acquisition in deep sleep mode using the LPT and DSADB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit, 32 MHz max, 64 DMIPS, IEEE 754 FPU, MPU |
| Flash / SRAM / Data Flash | 128 KB / 16 KB / 8 KB (1M erase cycles) |
| 24-bit Delta-Sigma ADC | 8-channel differential, ±10-V input range, 125 kSPS max, 24-bit effective resolution at 3.8 SPS |
| Programmable Gain Amplifier | Rail-to-rail PGA with gain = 1–128, 11 nVRMS noise (gain=128), offset drift 4 nV/°C |
| Voltage Reference | 2.5 V ±8 ppm/°C, ±10 mA output, supports external reference selection |
| Excitation Current Sources | Two channels, 50–1000 µA programmable, ±0.2% matching, 5 ppm/°C drift matching |
| Operating Temperature | –40°C to +85°C (D-version), qualified for industrial environments |
| Package | 64-pin LFQFP (PLQP0064KB-C), 10 × 10 mm, 0.5 mm pitch, no LCD driver |
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 and I/O supply (1.8–5.5 V); separate AVCC0 (4.5–5.5 V) for analog section ensures noise isolation |
| HVAIN0–HVAIN3 | Analog input | ±10-V tolerant high-voltage inputs for direct connection to load cells and bridge sensors |
| IEXC0 / IEXC1 | Excitation current output | Programmable current sources for RTD or 4-wire sensor biasing; matched drift enables ratiometric accuracy |
| DSAD_VREFH / DSAD_VREFL | ADC reference | Dedicated reference pins accepting internal 2.5 V or external reference; critical for absolute measurement stability |
| MTU0–MTU5 | PWM/timer I/O | 6-channel 16-bit MTU supports complementary PWM, phase counting, and A/D trigger generation for synchronized acquisition |
| SCI0–SCI9 / RSPI / RIIC / RSCAN | Communication interfaces | 6× SCI, 1× RSPI (16 Mbps), 1× I2C (400 kbps), 1× CAN (1 Mbps) enable sensor fusion and fieldbus integration |
Key Features
| Feature | Design Value |
|---|---|
| Integrated analog front-end (AFEA) | Eliminates need for external precision op-amps, PGAs, and excitation drivers in weigh scale and pressure transducer designs |
| Simultaneous 50/60 Hz rejection | Enables stable measurements in electrically noisy factory environments without external notch filtering |
| IEC60730 self-test support | Hardware-assisted RAM test, clock accuracy monitoring, IWDT diagnostics, and A/D disconnect detection simplify Class B certification |
| Event Link Controller (ELC) | Allows DSADB conversion start, data transfer, and timer actions to chain autonomously-reducing CPU load and power in sleep modes |
| Low-side switch (10 Ω) | On-chip 30 mA-rated switch enables direct control of sensor excitation or calibration shunts, reducing BOM count |
Applications
| Industrial Weigh Scales | Pressure Transmitters |
|---|---|
|
Use Scenario: High-resolution weight measurement in platform scales and hopper load cells under variable ambient temperature and EMI. IC Role / Device Role / Timing Role: Primary signal conditioner and controller; DSADB acquires bridge output at 3.8–125 kSPS while R5F523E5KDFM#10 executes digital filtering and linearization. Use Value: ±10-V HVAIN pins accept full-scale mV/V outputs directly; PGA gain matching and low drift (<4 nV/°C) maintain accuracy across –40°C to +85°C. |
Use Scenario: 4–20 mA loop-powered pressure transmitter with HART modulation and local display. IC Role / Device Role / Timing Role: Analog acquisition engine and protocol processor; R5F523E5KDFM#10 conditions piezoresistive sensor output and manages HART physical layer via SCI. Use Value: Integrated excitation sources (50–1000 µA) drive Wheatstone bridges ratiometrically; 2.5 V voltage reference with 8 ppm/°C drift ensures stable loop calibration. |
| Temperature Monitoring Systems | Strain Gauge Data Loggers |
|
Use Scenario: Multi-channel RTD (Pt100/Pt1000) monitoring in HVAC and process control cabinets. IC Role / Device Role / Timing Role: Precision analog front-end and system controller; R5F523E5KDFM#10 applies 4-wire Kelvin sensing and cold-junction compensation. Use Value: Dual excitation sources enable simultaneous 2-/3-/4-wire RTD measurement; DSADB's sinc filters suppress 50/60 Hz interference from adjacent AC wiring. |
Use Scenario: Battery-powered structural health monitoring using foil strain gauges on bridges or machinery. IC Role / Device Role / Timing Role: Low-power acquisition node; R5F523E5KDFM#10 samples at 3.8 SPS in software standby mode using LPT-triggered DSADB. Use Value: 8 KB data flash stores calibrated coefficients and logs; 1.8 V operation and three low-power modes extend battery life beyond 5 years. |
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 |
|---|---|---|---|
| R5F523E5BDFM#10 | Same package and memory, but 5-V analog input range (not ±10 V); no HVAIN pins | Suitable for lower-voltage sensors (e.g., 0–5 V output transducers), not bridge-based ±10 V systems | Select when sensor output stays within 0–5 V and HVAIN functionality is unnecessary |
| R5F523E5KDFP#10 | Same analog specs (±10 V, 125 kSPS), but 100-pin LFQFP (PLQP0100KB-B); adds RTC, LCD driver, and 2 extra DSADB channels | Required for designs needing calendar timekeeping, local segment display, or >4 differential sensor inputs | Choose for higher I/O count, RTC, or LCD support - at cost of larger footprint and higher pin count |
Compared with R5F523E5BDFM#10, the R5F523E5KDFM#10 enables direct ±10-V bridge interface without external level-shifting; versus R5F523E5KDFP#10, it offers identical analog performance in a compact 64-pin package but omits RTC and LCD - optimizing for space-constrained sensor nodes.
Availability
R5F523E5KDFM#10 is available at Aetrix Electronics and suitable for industrial weigh scales, pressure transmitters, RTD monitoring systems, and strain gauge data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F523E5KDFM#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 - including R5F523E5KDFM#10 - was designed specifically for high-accuracy sensor signal conditioning in industrial automation, featuring integrated 24-bit delta-sigma ADCs, precision PGAs, and IEC60730 safety support.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5KDFM#10?
The R5F523E5KDFM#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 delivers full 24-bit effective resolution with simultaneous 50/60 Hz rejection. The modulator clock is fixed at 4 MHz (typ.), and oversampling ratios range from 32 to 1,048,576 depending on data rate selection.
Does R5F523E5KDFM#10 include an integrated voltage reference, and what are its key specs?
Yes, R5F523E5KDFM#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 ±10 mA output current capability. It supports external reference input via DSAD_VREFH/DSAD_VREFL pins, enabling ratiometric or absolute measurement configurations. This reference directly feeds the 24-bit delta-sigma ADC and is optimized for low-noise, high-stability analog acquisition.
Can R5F523E5KDFM#10 drive RTD sensors directly, and how many excitation current sources does it provide?
Yes, R5F523E5KDFM#10 can drive RTD sensors directly using its two integrated excitation current sources (IEXC0 and IEXC1). Each source is programmable from 50 µA to 1000 µA in discrete steps, with ±0.2% current matching and 5 ppm/°C drift matching - critical for accurate 3- and 4-wire RTD measurements. These sources connect to the analog multiplexer and are fully controllable via firmware.
What communication interfaces are available on R5F523E5KDFM#10, and which support industrial fieldbus protocols?
R5F523E5KDFM#10 provides six SCI channels (SCI0, SCI1, SCI5, SCI6, SCI8, SCI9), one RSPI channel (16 Mbps), one I2C bus interface (400 kbps, SMBus-compatible), and one CAN 2.0B module compliant with ISO11898-1 (up to 1 Mbps). The CAN module supports standard and extended frames and is suitable for industrial fieldbus integration such as CANopen or DeviceNet physical layer interfacing.
Is R5F523E5KDFM#10 qualified for IEC60730 Class B compliance, and what hardware features assist certification?
Yes, R5F523E5KDFM#10 includes hardware-assisted IEC60730 Class B compliance features: self-diagnostic RAM test via DOC, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with dedicated oscillator, A/D converter disconnect detection, and voltage detector circuits for AVCC0 and DSAD references. These features reduce software validation effort and enable robust functional safety implementation in industrial control equipment.
R5F523E5KDFM#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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F523E5KDFM#10 FAQ
1.How can I place an order for R5F523E5KDFM#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5KDFM#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 R5F523E5KDFM#10 reliable?
The price and inventory of R5F523E5KDFM#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5KDFM#10 is usually 5 days.
3.What payment methods are accepted for R5F523E5KDFM#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5KDFM#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E5KDFM#10?
R5F523E5KDFM#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5KDFM#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 R5F523E5KDFM#10?
For technical support, including R5F523E5KDFM#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5KDFM#10 requirements.
6.How does Aetrix verify that R5F523E5KDFM#10 is sourced from the original manufacturer or authorized distributors?
All R5F523E5KDFM#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 R5F523E5KDFM#10 meets industry standards.
7.What is the process for return or replacement of R5F523E5KDFM#10?
All R5F523E5KDFM#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5KDFM#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 R5F523E5KDFM#10 part is unused and in its original packaging.
Return procedure for R5F523E5KDFM#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F523E5KDFM#10 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…
