My Inquiry
My Account
Renesas R5F523E5BDFM#50
- Part No.:
- R5F523E5BDFM#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F523E5BDFM#50.pdf
- Description:
- 32BIT MCU RX23E-B 128K LFQFP64 T
- Quantity:
- Payment:
- Shipping:
Inventory:3,367
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F523E5BDFM#50 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, ±10-V input capability via HVAIN pins, rail-to-rail programmable gain instrumentation amplifier (gain = 1–128), and on-chip excitation current sources (50–1000 µA). Operating at up to 32 MHz with 128 KB flash, 16 KB SRAM, and 8 KB data flash, it targets load cell, pressure transducer, and weigh scale front-end systems.
For engineers reviewing the R5F523E5BDFM#50 datasheet, R5F523E5BDFM#50 pinout, R5F523E5BDFM#50 application, or R5F523E5BDFM#50 equivalent, key selection criteria include its 64-pin LFQFP package, 125 kSPS delta-sigma ADC performance, ±10-V analog input range, integrated PGA and excitation sources, and IEC60730 safety support functions - all critical for precision sensor signal conditioning in harsh environments.
Technical Context
The R5F523E5BDFM#50 implements a dedicated analog front end (AFEA) with dual A/D subsystems: an 8-channel 24-bit delta-sigma converter (DSADB) synchronized to PCLKC (≤16 MHz) and an 8-channel 12-bit SAR converter (S12ADE) synchronized to PCLKD (≤32 MHz). Its DSADB includes fourth- and fifth-order sinc digital filters, simultaneous 50/60 Hz rejection at 10/54 SPS, and offset/gain error calibration.
It features a 32-bit RXv2 CPU core with IEEE 754-compliant FPU, memory protection unit (MPU), and event link controller (ELC) enabling low-power operation - allowing peripheral modules like MTU2a timers and DSADB to trigger conversions without CPU wake-up. The device supports three low-power modes and operates across 1.8–5.5 V supply with –40°C to +85°C temperature rating (D version).
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 / RAM / 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 differential inputs, 125 kSPS max, ±10-V input range, 24-bit effective resolution @3.8 SPS |
| Programmable Gain Amplifier | Rail-to-rail PGA with gain = 1–128, 11 nVRMS noise @gain=128, 4 nV/°C offset drift |
| Excitation Current Sources | Two channels, 50–1000 µA output, ±0.2% matching, 5 ppm/°C drift matching |
| Operating Voltage / Temp | 1.8–5.5 V supply; –40°C to +85°C ambient (D-grade); AVCC0 = 4.5–5.5 V for full analog performance |
| Package / Pins | PLQP0064KB-C: 64-pin LFQFP, 10 × 10 mm, 0.5 mm pitch, 30 I/O pins (2 HVAIN, 2 IEXC, 1 VREF, 1 VBIAS) |
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 | Main digital power (1.8–5.5 V) and ground reference for CPU, peripherals, and digital I/O |
| AVCC0 / AVSS0 | Analog power / Analog ground | Dedicated 4.5–5.5 V analog supply for DSADB, S12ADE, PGA, and excitation sources; critical for ±10-V input integrity |
| HVAIN0–HVAIN3 | High-voltage analog inputs | Four ±10-V tolerant differential input pins supporting direct connection to strain gauges and bridge sensors |
| IEXC0 / IEXC1 | Excitation current outputs | Two programmable current sources (50–1000 µA) for RTD or bridge sensor biasing with matched drift |
| VREF / VBIAS | Reference voltage / Bias voltage | 2.5 V internal reference (8 ppm/°C drift); (AVCC0 + AVSS0)/2 mid-rail bias for single-supply analog front end |
| MTU0–MTU5 | Multi-function timer I/O | Six 16-bit timer channels supporting PWM, capture, phase counting, and A/D conversion triggers |
| SCI0–SCI9, RSPI, RIIC, RSCAN | Communication interfaces | 6× SCI, 1× RSPI, 1× I²C, 1× CAN (ISO 11898-1, up to 1 Mbps) for sensor data aggregation and system bus integration |
Key Features
| Feature | Design Value |
|---|---|
| IEC60730 Safety Support | Hardware-assisted self-diagnostic functions for ADC, clock accuracy (CAC), IWDT, RAM test (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-Power Event-Driven Operation | ELC allows DSADB conversion start, MTU waveform generation, and RTC alarms without CPU intervention - reducing active time in sleep modes |
| High-Integrity Analog Input Path | Integrated low-drift voltage reference (2.5 V, 8 ppm/°C), ±10-V HVAIN pins, and low-side switch (10 Ω) for sensor fault isolation |
| Flexible Clock Architecture | Independent ICLK (CPU/system), PCLKA–PCLKD (peripheral domains), and FCLK (flash) enable precise power/performance tuning per subsystem |
Applications
| Industrial Weigh Scales | Pressure Transmitter Front Ends |
|---|---|
Use Scenario: High-resolution weight measurement in platform scales and hopper load cells using full-bridge strain gauge sensors. IC Role / Device Role / Timing Role: Primary analog signal conditioner and digital controller - digitizes mV-level bridge outputs, performs linearization/calibration, and communicates via RS485/SCI. Use Value: 24-bit delta-sigma ADC with 125 kSPS and ±10-V input enables <10 µg resolution on 100 kg platforms; integrated excitation sources eliminate external bias circuitry. |
Use Scenario: Smart pressure transmitter with HART or CAN bus output for process automation in oil & gas and water treatment. IC Role / Device Role / Timing Role: Sensor interface MCU handling piezoresistive or capacitive pressure element signal conditioning, temperature compensation, and protocol stack execution. Use Value: On-chip PGA (gain = 1–128), 4 nV/°C offset drift, and simultaneous 50/60 Hz rejection ensure stable 0.05% FS accuracy across –40°C to +85°C operating range. |
| Load Cell Signal Conditioners | RTD-Based Temperature Transmitters |
Use Scenario: DIN-rail mounted signal conditioner converting mV/V load cell outputs to 4–20 mA or digital Modbus output. IC Role / Device Role / Timing Role: Standalone analog front-end processor - acquires, filters, scales, and transmits calibrated load data with minimal external components. Use Value: Integrated 10 Ω low-side switch isolates faulty sensors; 8 KB data flash stores calibration coefficients and retains them over 1M cycles for field recalibration. |
Use Scenario: Two-wire or three-wire RTD temperature transmitter for HVAC and industrial monitoring with loop-powered design. IC Role / Device Role / Timing Role: Precision analog controller managing constant-current excitation, ratiometric ADC measurement, cold-junction compensation, and HART modulation. Use Value: Dual excitation sources (50–1000 µA) with ±0.2% matching enable accurate 2-/3-/4-wire RTD measurements; internal temperature sensor (±5°C) supports CJC without external ICs. |
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 |
|---|---|---|---|
| R5F523E5KDFM#50 | Same 64-pin LFQFP package and 128 KB/16 KB memory, but supports ±10-V analog input range (vs. ±5-V for R5F523E5BDFM#50) | Required for applications needing full ±10-V bridge input headroom without external signal scaling | Select when sensor output spans >±5 V or when maximizing dynamic range without external amplification |
| R5F523E5JDFN#50 | 80-pin LFQFP package with identical analog specs, adds RTC and LCD driver (not present in R5F523E5BDFM#50) | Suitable for panel-mounted instruments requiring local display and calendar-based logging | Choose when RTC functionality or 36×8 segment LCD driving is needed - requires PCB layout change due to larger footprint |
Compared with R5F523E5BDFM#50, R5F523E5KDFM#50 extends analog input range to ±10 V without altering pin count or package, while R5F523E5JDFN#50 trades compact 64-pin form factor for RTC and LCD support in an 80-pin layout - both retain identical CPU, memory, and safety feature sets.
Availability
R5F523E5BDFM#50 is available at Aetrix Electronics and suitable for industrial weigh scales, pressure transmitters, load cell conditioners, and RTD temperature transmitters requiring stable component supply, long-term lifecycle support, and guaranteed D-grade (-40°C to +85°C) operation.
Supply support for R5F523E5BDFM#50 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 R5F523E5BDFM#50 - was designed specifically for high-accuracy sensor signal conditioning in industrial measurement systems, integrating precision analog peripherals with functional safety features aligned with IEC60730 Class B requirements.
FAQ
What is the maximum sampling rate of the 24-bit delta-sigma ADC in R5F523E5BDFM#50?
The R5F523E5BDFM#50 supports a maximum sampling rate of 125 kSPS for its 24-bit delta-sigma ADC (DSADB). This rate is achievable with modulator clock fMOD = 4 MHz and appropriate sinc filter configuration. At lower data rates (e.g., 10 or 54 SPS), the device provides simultaneous 50 Hz and 60 Hz line-frequency rejection for industrial noise immunity.
Does R5F523E5BDFM#50 support ±10-V analog inputs?
Yes, R5F523E5BDFM#50 supports ±10-V analog inputs via its HVAIN0–HVAIN3 pins. This capability is confirmed in Table 1.3 of the datasheet (R01DS0402EJ0100), where the "B" suffix denotes the 5-V analog input range variant, and the "K"/"L" variants denote ±10-V range. However, R5F523E5BDFM#50 itself is specified for up to ±5-V input - the ±10-V capability applies only to R5F523E5KDFM#50 and R5F523E5LDFP#50. Therefore, R5F523E5BDFM#50 supports up to ±5 V on HVAIN pins.
What communication interfaces are available on R5F523E5BDFM#50?
R5F523E5BDFM#50 includes six SCI channels (SCI0, SCI1, SCI5, SCI6, SCI8, SCI9), one I²C bus interface (RIICa), one serial peripheral interface (RSPIc), and one CAN module (RSCAN) compliant with ISO 11898-1 up to 1 Mbps. It does not include SCIh (LIN-capable) or LCD controller - features present in higher-pin-count variants like the 100-pin models.
Is the R5F523E5BDFM#50 qualified for IEC60730 compliance?
Yes, R5F523E5BDFM#50 includes hardware-assisted self-diagnostic features required for IEC60730 Class B compliance, including A/D converter diagnostics, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT) testing, RAM test assistance via the data operation circuit (DOC), and analog input disconnect detection. These are explicitly listed under "Useful functions for IEC60730 compliance" in the datasheet.
What is the operating temperature range of R5F523E5BDFM#50?
R5F523E5BDFM#50 is rated for industrial operation from –40°C to +85°C (D-grade). This is confirmed by the "D" suffix in the part number and explicitly stated in Table 1.3 and Section 1.4 of the datasheet (R01DS0402EJ0100 Rev.1.00). It is not rated for the extended –40°C to +105°C (G-grade) range.
R5F523E5BDFM#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RX23E-B
- Packaging:
- Tape & Reel (TR)
- 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:
R5F523E5BDFM#50 FAQ
1.How can I place an order for R5F523E5BDFM#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F523E5BDFM#50 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 R5F523E5BDFM#50 reliable?
The price and inventory of R5F523E5BDFM#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F523E5BDFM#50 is usually 5 days.
3.What payment methods are accepted for R5F523E5BDFM#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F523E5BDFM#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F523E5BDFM#50?
R5F523E5BDFM#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F523E5BDFM#50 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 R5F523E5BDFM#50?
For technical support, including R5F523E5BDFM#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F523E5BDFM#50 requirements.
6.How does Aetrix verify that R5F523E5BDFM#50 is sourced from the original manufacturer or authorized distributors?
All R5F523E5BDFM#50 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 R5F523E5BDFM#50 meets industry standards.
7.What is the process for return or replacement of R5F523E5BDFM#50?
All R5F523E5BDFM#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F523E5BDFM#50, 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 R5F523E5BDFM#50 part is unused and in its original packaging.
Return procedure for R5F523E5BDFM#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F523E5BDFM#50 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…
