My Inquiry
My Account
Renesas R5F521A8BDFM#30
- Part No.:
- R5F521A8BDFM#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F521A8BDFM#30.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,353
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F521A8BDFM#30 from Renesas Electronics is a 32-bit RX CPU-based microcontroller optimized for high-precision analog sensing and low-power industrial control. It operates at up to 50 MHz (78 DMIPS), integrates a 24-bit ∆Σ A/D converter with 7 channels and x64 PGA gain, 512 KB on-chip flash, 64 KB SRAM, and hardware AES encryption. It targets energy metering, industrial current/voltage monitoring, and smart sensor nodes requiring IEC60730 compliance.
For engineers reviewing the R5F521A8BDFM#30 datasheet, R5F521A8BDFM#30 pinout, R5F521A8BDFM#30 application, or R5F521A8BDFM#30 equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options - all grounded in the official RX21A Group datasheet R01DS0129EJ0110 Rev.1.10.
Technical Context
The R5F521A8BDFM#30 implements the 32-bit RXv1 core with CISC Harvard architecture, 5-stage pipeline, and memory protection unit (MPU). Its clock system includes PLL (4–12.5 MHz input), sub-clock oscillator (32.768 kHz), and dedicated IWDT oscillator (125 kHz), enabling precise RTC operation and deep software standby with RTC wake-up capability.
It features dual A/D subsystems: a 24-bit ∆Σ converter (7 channels, SNDR = 85 dB, differential/single-ended inputs) and a 10-bit SAR converter (7 channels, 2.0 μs conversion time), both supported by self-diagnostic and disconnection-detection functions for functional safety. The DEU supports AES-128/192/256 in ECB/CBC modes, and the ELC enables event-triggered peripheral operation without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv1 32-bit CISC Harvard, 50 MHz max (78 DMIPS), 64-bit accumulator, MPU, on-chip debug |
| Memory | 512 KB flash (no wait states @50 MHz), 64 KB SRAM, 8 KB data flash (100k rewrites) |
| ∆Σ A/D Converter | 24-bit resolution, 7-channel (4 diff + 3 SE), SNDR = 85 dB, x1–x64 PGA gain, min. 81.92 μs conversion |
| 10-bit A/D & D/A | 10-bit SAR ADC (7 ch, 2.0 μs/ch), 10-bit DAC (2 ch, 0–VREFH output) |
| Security & Safety | AES-128/192/256 (ECB/CBC), IEC60730 self-test support for A/D, clock accuracy (CAC), IWDT, RAM test assist |
| Package & Temp | 64-pin LQFP (PLQP0064KB-A), 10 × 10 mm, 0.5 mm pitch, –40°C to +85°C operating range |
| Peripherals | 5× SCI (1 with IrDA), 2× I²C, 2× RSPI, 6× MTU2 timers, 4× TMR, 4× CMT, RTC, 2× comparators, temperature sensor |
Pinout & Package
Package: 64-pin LQFP (PLQP0064KB-A), 10 × 10 mm body, 0.5 mm pitch, surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: digital (VCC/VSS) and analog (AVCC0/AVSS0, AVCCA/AVSSA); decoupling required per datasheet layout guidelines |
| ANDS0P–ANDS3P / ANDS0N–ANDS3N | ∆Σ A/D differential inputs | Four fully differential input pairs supporting high-accuracy current sensing with programmable PGA gain up to x64 |
| ANDS4–ANDS6 | ∆Σ A/D single-ended inputs | Three voltage-sensing channels referenced to ANDSSG; used with internal or external reference |
| AN0–AN6 | 10-bit A/D inputs | Seven general-purpose analog inputs compatible with on-chip temperature sensor and self-diagnostic functions |
| DA0 / DA1 | 10-bit D/A outputs | Two buffered analog outputs with rail-to-rail swing (0 V to VREFH), suitable for calibration or feedback control |
| MTIOC0A–MTIOC5D | MTU2 timer I/O | 16 PWM/complementary output pins across six 16-bit timer channels; supports phase counting, input capture, and trigger generation for A/D |
| SCI5 TX/RX (TXD5/RXD5) + IRTXD5/IRRXD5 | IrDA interface | Dedicated IrDA physical layer via SCI5; requires external IR LED/detector and conforms to IrDA 1.0 waveform encoding |
| RTCOUT / RTCIC0–RTCIC2 | Real-time clock I/O | 1 Hz/64 Hz clock output and three independent time-capture event inputs for timestamping external signals |
Key Features
| Feature | Design Value |
|---|---|
| 24-bit ∆Σ A/D with calibration | Factory-trimmed gain and input impedance calibration data stored in DSADGmXn and DSADIIC registers enable <±0.005% gain error over temperature |
| Event Link Controller (ELC) | 69 event sources directly trigger peripherals (e.g., MTU, A/D) without CPU involvement - reduces latency and power in sleep modes |
| Multi-function Pin Controller (MPC) | Allows dynamic remapping of peripheral functions (e.g., SCI, I²C, RSPI) to multiple GPIO ports - simplifies PCB layout and enables pin reuse |
| Deep software standby with RTC | Retains RTC operation and wake-up capability while disabling CPU, flash, and most peripherals - typical current draw <1.5 μA |
| IEC60730 Class B support | Integrated self-test routines for A/D converter, clock accuracy (CAC), IWDT, RAM, and flash - reduces external safety component count |
Applications
| Energy Metering | Industrial Current Monitoring |
|---|---|
Use Scenario: Three-phase electricity meter with anti-tampering detection and harmonic analysis. IC Role / Device Role / Timing Role: Primary MCU executing metrology algorithms, managing ∆Σ A/D sampling synchronization, and performing AES-encrypted data logging. Use Value: 24-bit ∆Σ A/D with x64 PGA enables direct shunt-based current measurement with <100 ppm total error; RTC provides tamper-proof time-stamping. |
Use Scenario: DIN-rail mounted motor protection relay measuring phase currents and temperatures. IC Role / Device Role / Timing Role: Real-time sensor fusion hub interfacing CTs, PTs, and thermistors; triggers trip logic via ELC-linked MTU2 outputs. Use Value: Simultaneous 7-channel ∆Σ sampling eliminates multiplexing delay; self-diagnostic A/D ensures continuous fault detection per IEC60730. |
| Smart Grid Sensor Node | High-Accuracy Temperature Controller |
Use Scenario: Wireless transformer monitoring node capturing voltage, current, and oil temperature for predictive maintenance. IC Role / Device Role / Timing Role: Low-power sensing controller using deep software standby between 10-second measurement cycles; wakes via RTC alarm. Use Value: 8.6 mA active current @50 MHz and sub-μA standby enable >5-year battery life; integrated temperature sensor calibrated to ±1.5°C accuracy. |
Use Scenario: Precision oven controller maintaining ±0.1°C setpoint using RTD feedback and PID loop. IC Role / Device Role / Timing Role: Closed-loop analog processing unit: ∆Σ A/D digitizes RTD bridge, DAC drives heater PWM, MTU2 generates precise timing. Use Value: 24-bit resolution resolves <10 nV changes - sufficient for 0.01°C RTD resolution; on-chip PGA eliminates external instrumentation amplifier. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F521A8BDFN | 80-pin LQFP (PLQP0080KB-A); adds 13 more GPIO, 3 extra ∆Σ channels, full 5-channel SCI, 2× I²C, and 2× RSPI | Suitable for designs needing expanded analog I/O or additional serial interfaces without changing firmware logic | Select when board layout allows larger package and higher peripheral count is required - same core, memory, and feature set otherwise |
| R5F521A7BDFM | Same 64-pin LQFP package but with 384 KB flash, 64 KB SRAM, and identical peripheral configuration | Preferred for cost-sensitive applications where 512 KB flash is unnecessary and BOM optimization is critical | Drop-in replacement for firmware with ≤384 KB code footprint; identical pinout, timing, and analog performance |
Compared with R5F521A8BDFM#30, R5F521A8BDFN offers greater I/O and interface scalability in a larger package, while R5F521A7BDFM reduces flash capacity without altering analog precision or real-time capabilities - enabling tiered product variants from a single hardware design.
Availability
R5F521A8BDFM#30 is available at Aetrix Electronics and suitable for energy metering, industrial current monitoring, and smart grid sensor node applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for R5F521A8BDFM#30 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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.
The RX21A Group - including R5F521A8BDFM#30 - was designed specifically for high-accuracy, low-power industrial sensing applications demanding integrated ∆Σ A/D, functional safety, and secure firmware execution.
FAQ
What is the maximum operating frequency and CPU performance of the R5F521A8BDFM#30?
The R5F521A8BDFM#30 operates at a maximum frequency of 50 MHz, delivering 78 DMIPS of processing performance. Its 32-bit RXv1 core includes a 64-bit accumulator, hardware multiplier/divider, and 5-stage pipeline - enabling deterministic real-time execution for metrology and control algorithms. This performance is sustained across its full –40°C to +85°C operating range when powered at 2.7–3.6 V.
Does the R5F521A8BDFM#30 support IEC60730 Class B compliance out of the box?
Yes, the R5F521A8BDFM#30 includes dedicated hardware features for IEC60730 Class B compliance: self-diagnostic A/D converter tests, clock accuracy measurement circuit (CAC), independent watchdog timer (IWDT), RAM test assist functions, and analog input disconnection detection. These are documented in the RX21A Group hardware manual and require no external components to implement basic Class B checks.
How many analog input channels does the R5F521A8BDFM#30 support, and what are their types?
The R5F521A8BDFM#30 supports two independent A/D subsystems: seven channels on the 24-bit ∆Σ converter (four differential pairs + three single-ended) and seven channels on the 10-bit SAR converter. The ∆Σ inputs include dedicated pins like ANDS0P/ANDS0N for current sensing and ANDS4–ANDS6 for voltage sensing, each with configurable PGA gain - all accessible simultaneously without multiplexing.
What package type and pin count does the R5F521A8BDFM#30 use?
The R5F521A8BDFM#30 uses a 64-pin LQFP package designated PLQP0064KB-A: 10 × 10 mm body size, 0.5 mm pin pitch, and standard gull-wing lead form. This package supports 38 GPIO pins, 66 total I/O terminals (including analog and peripheral function pins), and is compatible with standard reflow soldering processes per J-STD-020.
Can the R5F521A8BDFM#30 perform AES encryption in hardware?
Yes, the R5F521A8BDFM#30 integrates a Data Encryption Unit (DEU) that performs AES encryption and decryption in hardware for 128-, 192-, and 256-bit keys in ECB or CBC mode. This offloads cryptographic operations from the CPU, enables secure firmware updates, and supports encrypted data logging - all without external security ICs.
R5F521A8BDFM#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RX200
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- RX
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- I2C, IrDA, SCI, SPI
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 38
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 3x24b, 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F521A8BDFM#30 FAQ
1.How can I place an order for R5F521A8BDFM#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F521A8BDFM#30 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 R5F521A8BDFM#30 reliable?
The price and inventory of R5F521A8BDFM#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F521A8BDFM#30 is usually 5 days.
3.What payment methods are accepted for R5F521A8BDFM#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F521A8BDFM#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F521A8BDFM#30?
R5F521A8BDFM#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F521A8BDFM#30 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 R5F521A8BDFM#30?
For technical support, including R5F521A8BDFM#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F521A8BDFM#30 requirements.
6.How does Aetrix verify that R5F521A8BDFM#30 is sourced from the original manufacturer or authorized distributors?
All R5F521A8BDFM#30 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 R5F521A8BDFM#30 meets industry standards.
7.What is the process for return or replacement of R5F521A8BDFM#30?
All R5F521A8BDFM#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F521A8BDFM#30, 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 R5F521A8BDFM#30 part is unused and in its original packaging.
Return procedure for R5F521A8BDFM#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F521A8BDFM#30 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…
