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Renesas R7FA2A2BD3CFM#HA1
- Part No.:
- R7FA2A2BD3CFM#HA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FA2A2BD3CFM#HA1.pdf
- Description:
- MCU RA2A2 ARM CM23 48MHZ 512K/48
- Quantity:
- Payment:
- Shipping:
Inventory:2,035
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Product details
Overview
R7FA2A2BD3CFM#HA1 from Renesas is an ultra-low-power 48 MHz Arm® Cortex®-M23 microcontroller with 512-KB dual-bank flash, 48-KB SRAM (16 KB ECC + 32 KB parity), 4-channel 24-bit Sigma-Delta ADC, 12-bit ADC, independent power supply RTC, and integrated segment LCD controller. It targets battery-powered industrial HMI, portable medical sensors, and energy metering systems requiring high-precision analog acquisition and long-term timekeeping.
For engineers reviewing the R7FA2A2BD3CFM#HA1 datasheet, R7FA2A2BD3CFM#HA1 pinout, R7FA2A2BD3CFM#HA1 application, or R7FA2A2BD3CFM#HA1 equivalent, key selection criteria include its 64-pin LQFP package, -40°C to +105°C operation, 4-channel SDADC24 with programmable gain amplifier, dual-bank flash for safe firmware updates, and hardware AES-128/256 encryption for secure boot and data protection.
Technical Context
The R7FA2A2BD3CFM#HA1 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace. Its analog subsystem integrates two independent A/D converters: a 12-bit SAR ADC (4 inputs) and a 24-bit Sigma-Delta ADC (4 differential/single-ended channels) clocked by PLL-multiplied sub-oscillator (32.768 kHz), enabling simultaneous high-resolution sensor measurement and low-power RTC operation.
Power management includes seven low-voltage detectors (LVD0–LVD_VRTC), Event Link Controller (ELC) for peripheral-to-peripheral triggering without CPU intervention, and Data Transfer Controller (DTC) for autonomous memory transfers. The SLCDC supports up to 21-segment × 4-common or 17-segment × 8-common LCD drive with internal voltage boosting and waveform A/B selection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports TrustZone security extensions and MPU with 8 memory regions. |
| Memory | 512-KB dual-bank code flash (256 KB × 2) enables bank-swap firmware updates; 8-KB data flash (100k P/E cycles); 48-KB SRAM (16 KB ECC + 32 KB parity). |
| Analog Peripherals | 4-channel 24-bit Sigma-Delta ADC (SDADC24) with PGA; 4-channel 12-bit SAR ADC (ADC12); on-chip temperature sensor (TSN). |
| Timers & PWM | 6× GPT16 (16-bit general PWM timers); 8× AGT (16-bit low-power async timers); 2× AGTW (32-bit low-power async timers); IWDT with dedicated 15-kHz oscillator. |
| Connectivity | 5× SCI (UART/IIC/SPI/smart card); 2× I2C; 1× SPI; 77 total GPIOs (64 I/O, 3 input-only, 1 output-only) in 100-pin variant - R7FA2A2BD3CFM#HA1 uses 64-pin LQFP with 39 I/O pins. |
| Package & Environment | 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch); operating temperature −40°C to +105°C; VCC range 1.6 V to 5.5 V. |
| Security & Safety | AES-128/256 (ECB/CBC/CTR/GCM/CMAC/CCM); TRNG; CAC for clock accuracy monitoring; CRC engine; DOC for 16-bit data comparison; register write protection. |
Pinout & Package
Package: 64-pin LQFP (PLQP0064KB-C), 10 mm × 10 mm, 0.5 mm pitch, lead-free termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC (digital core), AVCC/AVSS (analog subsystem), VRTC (independent RTC supply). |
| XCIN / XCOUT | Sub-clock oscillator interface | 32.768 kHz crystal connection for RTC and SDADC24 clock source; supports oscillator stop detection. |
| ANIP0–ANIP3 / ANIN0–ANIN3 | SDADC24 analog inputs | 4 differential or 8 single-ended channels for high-precision sensor interfacing; supports PGA gain configuration. |
| SEG0–SEG20 / COM0–COM7 | SLCDC outputs | Configurable for 21-seg × 4-com or 17-seg × 8-com LCD drive; supports internal boost, capacitor split, or external resistor division. |
| P001–P015, P100–P115, etc. | General-purpose I/O | 39 GPIOs with 5-V tolerance on 2 pins, N-ch open-drain on 32 pins, pull-up resistors on 37 pins. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank flash with bank swap | Enables seamless firmware updates without system interruption; critical for field-deployed industrial devices requiring zero-downtime OTA upgrades. |
| Independent power supply RTC | Retains calendar (2000–2099), alarm, and clock correction functions even when main VCC is off; powered solely by VRTC pin. |
| Hardware AES engine | Accelerates cryptographic operations (ECB/CBC/CTR/GCM/CMAC/CCM) with 128/256-bit keys; offloads CPU and ensures deterministic timing for secure boot. |
| Memory Mirror Function (MMF) | Maps application image load address in flash to link address in unused 23-bit memory space; simplifies firmware development and relocation-aware linking. |
| Event Link Controller (ELC) | Directly connects peripheral events (e.g., ADC conversion complete → DMA trigger) without CPU involvement; reduces latency and power consumption. |
Applications
| Industrial HMI Panels | Portable Medical Sensors |
|---|---|
Use Scenario: Battery-powered handheld meters with segmented LCD display, push-button interface, and real-time sensor readouts. IC Role / Device Role / Timing Role: Main system controller executing UI logic, driving LCD segments, acquiring analog sensor data via SDADC24, and managing RTC-based timestamping. Use Value: Integrated SLCDC eliminates external LCD driver IC; 24-bit SDADC24 provides >100 dB SNR for precision biopotential measurement; low-power modes extend battery life beyond 5 years. | Use Scenario: Wearable ECG/SpO₂ monitors requiring clinical-grade analog front-end, secure patient data storage, and calendar-aware logging. IC Role / Device Role / Timing Role: Analog acquisition hub with 24-bit SDADC24 for low-noise signal conditioning, AES encryption for HIPAA-compliant data, and independent RTC for audit-trail timestamps. Use Value: On-chip PGA and digital filtering reduce external component count; ECC SRAM prevents silent data corruption in long-term logging; VRTC domain ensures accurate timekeeping during sleep. |
| Smart Energy Meters | Building Automation Controllers |
Use Scenario: DIN-rail mounted electricity meters with tamper detection, pulse output, and LCD display showing kWh, voltage, current, and tariff schedules. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC sampling, tariff switching via RTC calendar, LCD refresh, and secure firmware updates over HART/Modbus. Use Value: Dual-bank flash enables certified firmware rollback; SDADC24 achieves Class 0.2 accuracy per IEC 62053-21; hardware CRC validates metering data integrity. | Use Scenario: HVAC zone controllers with temperature/humidity sensing, relay actuation, and BACnet/IP communication via external PHY. IC Role / Device Role / Timing Role: Real-time control unit performing PID loop execution, analog sensor polling (TSN + ADC12), and event-triggered communication using ELC-linked SCI interrupts. Use Value: AGT/AGTW timers provide precise 1-ms scheduling for control loops; LVD_VRTC detects backup battery failure; 5-V tolerant I/O interfaces directly with legacy 5-V sensors and actuators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2A2AD3CFM#HA1 | Same 64-pin LQFP package but with 7-channel SDADC24 instead of 4-channel; identical flash/SRAM/security/peripherals. | Required where higher channel count for multi-sensor systems (e.g., 3-phase energy metering) is needed without changing PCB layout. | Select R7FA2A2AD3CFM#HA1 only if full 7-channel SDADC24 capability is required; otherwise R7FA2A2BD3CFM#HA1 offers cost-optimized analog I/O. |
| R7FA2E2A23CFM#HA1 | RA2E2 family part: same 64-pin LQFP, 48 MHz Cortex-M23, 512-KB flash, but lacks SDADC24, SLCDC, and independent RTC; adds USB FS device. | Suitable for USB-connected sensor nodes where LCD and ultra-high-precision analog are unnecessary, but host interface is critical. | Choose R7FA2E2A23CFM#HA1 when USB connectivity outweighs need for integrated LCD driver or 24-bit ADC; not drop-in compatible due to peripheral differences. |
Compared with R7FA2A2AD3CFM#HA1, the R7FA2A2BD3CFM#HA1 reduces SDADC24 channel count to lower cost while retaining identical security, timing, and memory features; versus R7FA2E2A23CFM#HA1, it trades USB for analog and HMI peripherals essential in standalone metering and display applications.
Availability
R7FA2A2BD3CFM#HA1 is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical sensors, and smart energy meters requiring stable component supply across extended product lifecycles.
Supply support for R7FA2A2BD3CFM#HA1 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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The RA2A2 group is designed for ultra-low-power, high-integration industrial and consumer HMI applications, emphasizing analog precision (24-bit SDADC), secure firmware execution (AES+TRNG), and human interface integration (SLCDC+RTC).
FAQ
What is the maximum operating frequency of the R7FA2A2BD3CFM#HA1?
The R7FA2A2BD3CFM#HA1 operates at a maximum frequency of 48 MHz using the Arm Cortex-M23 core. This speed is achieved with the high-speed on-chip oscillator (HOCO) or main crystal oscillator (MOSC), and the PLL can further multiply the sub-clock oscillator for SDADC24 timing. All timing-critical peripherals-including GPT16 timers and SCI baud rate generation-are synchronized to this 48 MHz system clock, ensuring deterministic real-time performance in R7FA2A2BD3CFM#HA1-based designs.
Does the R7FA2A2BD3CFM#HA1 support hardware encryption?
Yes, the R7FA2A2BD3CFM#HA1 integrates a dedicated AES engine supporting ECB, CBC, CTR, GCM, CMAC, and CCM cipher modes with 128-bit and 256-bit key lengths. It also includes a True Random Number Generator (TRNG) for cryptographic key derivation. These security features operate independently of the CPU, enabling secure boot, encrypted firmware updates, and protected data storage without compromising real-time responsiveness in R7FA2A2BD3CFM#HA1 implementations.
How many analog input channels does the R7FA2A2BD3CFM#HA1 support?
The R7FA2A2BD3CFM#HA1 supports two independent analog subsystems: a 12-bit SAR ADC (ADC12) with up to 4 input channels (AN000–AN003), and a 24-bit Sigma-Delta ADC (SDADC24) with 4 differential or 8 single-ended channels (ANIP0–ANIP3 / ANIN0–ANIN3). The SDADC24 includes a programmable gain amplifier and digital filtering, making R7FA2A2BD3CFM#HA1 suitable for high-accuracy sensor applications such as precision weight scales and energy metering.
What LCD driving capability does the R7FA2A2BD3CFM#HA1 provide?
The R7FA2A2BD3CFM#HA1 integrates a Segment LCD Controller/Driver (SLCDC) supporting up to 21 segment × 4 common or 17 segment × 8 common configurations in its 64-pin LQFP package. It offers three drive methods-internal voltage boosting, capacitor split, and external resistor division-and selectable waveforms (A or B). This eliminates external LCD driver ICs in R7FA2A2BD3CFM#HA1-based HMI designs, reducing BOM cost and board area while maintaining display reliability across temperature ranges.
Is the R7FA2A2BD3CFM#HA1 pin-compatible with other RA2A2 variants?
The R7FA2A2BD3CFM#HA1 shares the same 64-pin LQFP (PLQP0064KB-C) package and pinout with other RA2A2 64-pin variants like R7FA2A2AD3CFM#HA1, enabling direct PCB footprint compatibility. However, functional differences exist-R7FA2A2AD3CFM#HA1 provides 7 SDADC24 channels versus 4 in R7FA2A2BD3CFM#HA1-so firmware and analog circuitry must be verified for interchangeability. No changes to PCB layout are required when substituting within the same package family.
R7FA2A2BD3CFM#HA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RA2A2
- Packaging:
- Tape & Reel (TR)
- 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:
- 39
- 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:
R7FA2A2BD3CFM#HA1 FAQ
1.How can I place an order for R7FA2A2BD3CFM#HA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2A2BD3CFM#HA1 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 R7FA2A2BD3CFM#HA1 reliable?
The price and inventory of R7FA2A2BD3CFM#HA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2A2BD3CFM#HA1 is usually 5 days.
3.What payment methods are accepted for R7FA2A2BD3CFM#HA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2A2BD3CFM#HA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2A2BD3CFM#HA1?
R7FA2A2BD3CFM#HA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2A2BD3CFM#HA1 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 R7FA2A2BD3CFM#HA1?
For technical support, including R7FA2A2BD3CFM#HA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2A2BD3CFM#HA1 requirements.
6.How does Aetrix verify that R7FA2A2BD3CFM#HA1 is sourced from the original manufacturer or authorized distributors?
All R7FA2A2BD3CFM#HA1 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 R7FA2A2BD3CFM#HA1 meets industry standards.
7.What is the process for return or replacement of R7FA2A2BD3CFM#HA1?
All R7FA2A2BD3CFM#HA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2A2BD3CFM#HA1, 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 R7FA2A2BD3CFM#HA1 part is unused and in its original packaging.
Return procedure for R7FA2A2BD3CFM#HA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2A2BD3CFM#HA1 Tags
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