My Inquiry
My Account
Renesas R7FA2A2BD3CFP#AA1
- Part No.:
- R7FA2A2BD3CFP#AA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R7FA2A2BD3CFP#AA1.pdf
- Description:
- MCU RA2A2 ARM CM23 48MHZ 512K/48
- Quantity:
- Payment:
- Shipping:
Inventory:2,877
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R7FA2A2BD3CFP#AA1 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 512-KB dual-bank flash, 48-KB SRAM with ECC/parity split, 24-bit Sigma-Delta ADC (4-channel), 12-bit ADC (2-channel), independent power supply RTC, and integrated segment LCD controller for industrial HMI applications.
For engineers reviewing the R7FA2A2BD3CFP#AA1 datasheet, R7FA2A2BD3CFP#AA1 pinout, R7FA2A2BD3CFP#AA1 application, or R7FA2A2BD3CFP#AA1 equivalent, this MCU delivers deterministic real-time control with security (AES-128/256, TRNG), functional safety features (CRC, DOC, CAC, IWDT), and low-power operation across -40°C to +105°C in a 100-pin LQFP package.
Technical Context
The R7FA2A2BD3CFP#AA1 implements Armv8-M architecture with Memory Protection Unit (8 regions), debug via SW-DP, and dual-bank flash supporting Bank Swap for robust firmware updates. Its analog subsystem integrates two independent A/D converters: a 12-bit SAR ADC (2 ch) and a 24-bit Sigma-Delta ADC (4 ch differential/single-ended) with programmable gain amplifier and PLL-derived clocking.
System-level timing is managed by multiple oscillators (HOCO/MOCO/LOCO/SOSC/MOSC), Clock Frequency Accuracy Measurement Circuit (CAC), and asynchronous timers (AGT × 8, AGTW × 2). The Event Link Controller (ELC) enables CPU-free peripheral coordination, while the Data Transfer Controller (DTC) handles memory-mapped transfers triggered by interrupts or events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23 @ 48 MHz, Armv8-M architecture with MPU (8 regions) |
| Memory | 512-KB dual-bank code flash (256 KB × 2), 8-KB data flash (100k P/E cycles), 48-KB SRAM (32 KB parity + 16 KB ECC) |
| Analog | 24-bit SDADC24 (4-channel differential/single-ended), 12-bit ADC12 (2-channel), on-chip temperature sensor |
| Timers | GPT16 × 6, AGT × 8 (16-bit), AGTW × 2 (32-bit), WDT/IWDT, RTC with calendar mode (99-year range) |
| Connectivity | SCI × 4 (UART/IIC/SPI/smart card), IIC × 1, SPI × 1, ELC, DTC, SWD debug interface |
| HMI & Power | Segment LCD controller (up to 45 seg × 4 com), independent VRTC supply, 1.6–5.5 V operation, -40°C to +105°C |
| Security & Safety | AES-128/256 (ECB/CBC/CTR/GCM/CMAC/CCM), TRNG, CRC, DOC, CAC, register write protection, illegal access detection |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, Pb-free terminal material.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Digital core supply (1.6–5.5 V); decoupling required per datasheet layout guidelines |
| AVCC / AVSS / AVCM / AVRT | Analog power & reference | Separate analog domain supply and reference for SDADC24 and ADC12; AVCM sets common-mode voltage |
| ANIP0–ANIP3 / ANIN0–ANIN3 | SDADC24 analog inputs | 4-channel differential input pairs for high-resolution sensor measurement (e.g., load cells, precision thermistors) |
| AN000–AN001 | ADC12 analog inputs | 2-channel single-ended inputs with internal reference selection (VREFH0/VREFL0) |
| COM0–COM3 / SEG0–SEG44 | SLCDC outputs | Drives up to 45 segments × 4 commons for segment LCD displays without external bias circuitry |
| XCIN / XCOUT / VRTC | RTC oscillator & supply | Independent 32.768 kHz crystal interface and dedicated RTC power rail enabling calendar operation during main power loss |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug for programming, real-time trace, and non-intrusive breakpoint debugging |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank flash with Bank Swap | Enables seamless firmware updates with zero downtime; verified boot and rollback support via software management |
| 24-bit SDADC24 with PGA | Provides 105 dB SNR and <1 ppm THD+N for high-precision weight sensing or energy metering without external signal conditioning |
| Independent power supply RTC | Maintains calendar time and alarm functions using VRTC rail, surviving main power failure for >1 year with coin-cell backup |
| Hardware AES & TRNG | Accelerates secure boot, firmware signing, and TLS key generation; TRNG meets NIST SP 800-90B entropy requirements |
| ELC + DTC co-processing | Offloads CPU from timer-triggered ADC sampling → DMA transfer → CRC calculation chains, reducing active current by >40% |
Applications
| Industrial Panel Meters | Smart Utility Meters |
|---|---|
|
Use Scenario: High-accuracy AC/DC energy measurement with LCD display and tamper detection. IC Role / Device Role / Timing Role: Primary system controller executing metrology algorithms, driving 4-digit segment LCD, managing secure firmware updates, and timestamping events via RTC. Use Value: Integrated 24-bit SDADC24 eliminates external sigma-delta front-end; dual-bank flash enables field-upgradable tariff tables without service interruption. |
Use Scenario: Water/gas meter with battery-backed real-time logging, leak detection, and wireless reporting. IC Role / Device Role / Timing Role: Low-power host MCU coordinating SDADC24 pressure/flow readings, RTC calendar logging, and secure AES-encrypted data transmission. Use Value: Independent VRTC supply ensures 10+ year calendar retention on coin cell; ultra-low sleep current (<1.5 µA) extends battery life beyond 15 years. |
| Medical Patient Monitors | Building Automation Controllers |
|
Use Scenario: Portable vital sign monitor with ECG/temperature display and clinical-grade accuracy certification. IC Role / Device Role / Timing Role: Signal acquisition controller performing real-time filtering on SDADC24 outputs, driving segmented display, and enforcing IEC 62304 safety compliance. Use Value: On-chip CAC validates clock integrity for FDA-critical timing; CRC and DOC provide runtime memory/data path integrity checking. |
Use Scenario: HVAC zone controller with environmental sensing, LCD UI, and BACnet/IP communication stack. IC Role / Device Role / Timing Role: Real-time scheduler managing temperature/humidity ADC sampling, fan PWM control via GPT16, and segment LCD refresh via SLCDC. Use Value: Hardware-accelerated MACL performs PID loop calculations in <2 µs; ELC links AGT timers to GPT16 for jitter-free motor control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2A2AD3CFP#AA0 | 7-channel SDADC24, full 100-pin pinout, version 1.0 silicon | Supports higher-channel sensor arrays (e.g., multi-point strain gauge bridges) | Select when >4 SDADC channels or legacy revision compatibility is required |
| R7FA2E2AF3CFP#AA0 | Same RA2A2 family, 1 MB flash, 128 KB SRAM, no SDADC24, added CAN FD | Targeted at motor control with CAN bus, not precision analog sensing | Choose for automotive body electronics where CAN FD and larger code space outweigh SDADC need |
Compared with R7FA2A2BD3CFP#AA1, the R7FA2A2AD3CFP#AA0 offers expanded analog channel count but lacks newer errata fixes, while the R7FA2E2AF3CFP#AA0 trades SDADC24 for CAN FD and doubled memory-making it unsuitable for metrology but optimal for networked motor drives.
Availability
R7FA2A2BD3CFP#AA1 is available at Aetrix Electronics and suitable for industrial panel meters, smart utility meters, medical patient monitors, and building automation controllers requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for R7FA2A2BD3CFP#AA1 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, power, and SoC solutions for industrial, automotive, and enterprise applications.
The RA2A2 group targets cost-sensitive, ultra-low-power industrial HMI and precision sensing applications, integrating high-resolution analog peripherals, security, and functional safety features into scalable Arm Cortex-M23 platforms.
FAQ
What is the maximum operating frequency of the R7FA2A2BD3CFP#AA1?
The R7FA2A2BD3CFP#AA1 operates at a maximum frequency of 48 MHz using its Arm Cortex-M23 core. This speed is achievable with the high-speed on-chip oscillator (HOCO) or main crystal oscillator (MOSC), and is maintained across the full -40°C to +105°C industrial temperature range. The R7FA2A2BD3CFP#AA1 supports dynamic clock scaling to reduce power during low-activity periods without compromising real-time response.
Does the R7FA2A2BD3CFP#AA1 support hardware encryption?
Yes, the R7FA2A2BD3CFP#AA1 integrates a dedicated AES engine supporting ECB, CBC, CTR, GCM, CMAC, and CCM modes with 128-bit and 256-bit key lengths. It also includes a NIST-certifiable True Random Number Generator (TRNG) for key derivation. These features are accessible via Renesas' Flexible Software Package (FSP) and enable secure boot, firmware authentication, and encrypted communication stacks in the R7FA2A2BD3CFP#AA1.
How many analog input channels does the R7FA2A2BD3CFP#AA1 have?
The R7FA2A2BD3CFP#AA1 provides two independent analog subsystems: a 24-bit Sigma-Delta ADC (SDADC24) with 4 differential or single-ended input channels (ANIP0–ANIP3 / ANIN0–ANIN3), and a 12-bit successive-approximation ADC (ADC12) with 2 input channels (AN000–AN001). Both converters operate concurrently and can be synchronized via the Event Link Controller (ELC) for correlated multi-domain measurements.
What LCD drive capability does the R7FA2A2BD3CFP#AA1 offer?
The R7FA2A2BD3CFP#AA1 integrates a Segment LCD Controller (SLCDC) supporting up to 45 segment outputs and 4 common outputs (or 41 segments × 8 commons) with selectable waveform (A/B), internal boosting, capacitor-split, or resistor-division bias methods. It drives standard multiplexed LCD glass directly-no external driver IC needed-and maintains display stability during low-power modes using the independent VRTC supply.
Is the R7FA2A2BD3CFP#AA1 qualified for automotive applications?
No, the R7FA2A2BD3CFP#AA1 is specified for industrial temperature range (-40°C to +105°C) and is not AEC-Q100 qualified. While it includes functional safety features (IWDT, CAC, CRC, DOC) suitable for IEC 61508 SIL2 systems, it lacks automotive-specific qualifications such as PPAP documentation, automotive-grade screening, or extended reliability testing. For automotive use, Renesas recommends the RA2E2 or RA4E1 families with AEC-Q100 Grade 2 certification.
R7FA2A2BD3CFP#AA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RA2A2
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, SCI, SPI, UART/USART
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 73
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 48K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 1x12b SAR, 4x24b Sigma-Delta
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2A2BD3CFP#AA1 FAQ
1.How can I place an order for R7FA2A2BD3CFP#AA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2A2BD3CFP#AA1 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 R7FA2A2BD3CFP#AA1 reliable?
The price and inventory of R7FA2A2BD3CFP#AA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2A2BD3CFP#AA1 is usually 5 days.
3.What payment methods are accepted for R7FA2A2BD3CFP#AA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2A2BD3CFP#AA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2A2BD3CFP#AA1?
R7FA2A2BD3CFP#AA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2A2BD3CFP#AA1 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 R7FA2A2BD3CFP#AA1?
For technical support, including R7FA2A2BD3CFP#AA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2A2BD3CFP#AA1 requirements.
6.How does Aetrix verify that R7FA2A2BD3CFP#AA1 is sourced from the original manufacturer or authorized distributors?
All R7FA2A2BD3CFP#AA1 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 R7FA2A2BD3CFP#AA1 meets industry standards.
7.What is the process for return or replacement of R7FA2A2BD3CFP#AA1?
All R7FA2A2BD3CFP#AA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2A2BD3CFP#AA1, 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 R7FA2A2BD3CFP#AA1 part is unused and in its original packaging.
Return procedure for R7FA2A2BD3CFP#AA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2A2BD3CFP#AA1 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…
