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Renesas R7FA2A2BD3CFP#BA1
- Part No.:
- R7FA2A2BD3CFP#BA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R7FA2A2BD3CFP#BA1.pdf
- Description:
- MCU:RA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R7FA2A2BD3CFP#BA1 from Renesas Electronics is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 512-KB dual-bank flash memory, 48-KB SRAM with ECC/parity split, 4-channel 24-bit Sigma-Delta ADC (SDADC24), 12-bit ADC (ADC12), segment LCD controller/driver, independent power supply RTC, and AES-128/256 + TRNG security. It targets battery-powered industrial HMI, smart metering, and portable medical devices requiring high-precision analog sensing and secure firmware updates.
For engineers reviewing the R7FA2A2BD3CFP#BA1 datasheet, R7FA2A2BD3CFP#BA1 pinout, R7FA2A2BD3CFP#BA1 application, or R7FA2A2BD3CFP#BA1 equivalent, key selection criteria include its 100-pin LQFP package, 4-channel SDADC24 configuration (vs. 7-channel in R7FA2A2AD3CFP), integrated SLCDC supporting up to 45 segments × 4 commons, and dual-bank flash enabling safe over-the-air updates without external memory.
Technical Context
The R7FA2A2BD3CFP#BA1 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 regions, debug via SW-DP, and core-level safety features including CAC for clock accuracy monitoring and IWDT with dedicated 15-kHz oscillator. Its analog subsystem integrates two independent A/D converters: a 12-bit SAR ADC with 4 input channels and temperature sensor interface, and a 24-bit Sigma-Delta ADC with programmable gain amplifier and 4 differential/single-ended inputs.
Power management includes seven low-voltage detectors (LVD0–LVD_VRTC), multiple clock sources (HOCO/MOCO/LOCO/SOSC/MOSC), and event-driven peripherals via ELC and DTC-enabling autonomous operation in sleep modes. The SLCDC supports internal voltage boosting, capacitor-split, or external resistor division for LCD bias generation, configurable for 4- or 8-common drive with waveform A/B selection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports Armv8-M TrustZone-ready execution with MPU for memory isolation. |
| Memory | 512-KB dual-bank code flash (256 KB × 2) enables bank-swap firmware updates; 8-KB data flash rated for 100,000 P/E cycles. |
| Analog Converters | 4-channel 24-bit SDADC24 (differential/single-ended) + 4-channel 12-bit ADC12 with TSN interface; both support hardware-triggered conversion. |
| RTC & Power | Independent VRTC-supplied RTC with calendar mode (2000–2099), alarm, correction, and RTCPOR circuit; operates down to 1.6 V VCC. |
| Security | AES-128/256 (ECB/CBC/CTR/GCM/CMAC/CCM) + True Random Number Generator (TRNG); flash area protection and register write lock. |
| Package & I/O | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch); 67 GPIOs including 3 input-only, 1 output-only, 5-V tolerant on 3 pins (RTCIC0–2). |
| Operating Range | -40°C to +105°C ambient; VCC = 1.6 V to 5.5 V; supports low-power modes with AGT/AGTW timers running from sub-clock oscillator. |
Pinout & Package
Package: 100-pin LQFP (PLQP0100KB-B), 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant Pb-free terminal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC pins (pins 26, 50) and multiple VSS (pins 25, 49, 75, 100) enable low-noise analog/digital separation and decoupling. |
| ANIP0–ANIP3 / ANIN0–ANIN3 | SDADC24 analog inputs | Four differential pairs (positive/negative) for precision measurement; AVCM sets common-mode voltage for full-scale range. |
| SEG0–SEG44 / COM0–COM7 | SLCDC outputs | Supports 45-segment × 4-common or 41-segment × 8-common LCD drive; VL1–VL4 and CAPH/CAPL configure bias method. |
| P001/P002 / VREFH0/VREFL0 | ADC12 reference inputs | External reference pins for ADC12; connect to AVCC/AVSS if internal reference used; enable ratiometric measurement accuracy. |
| XCIN / XCOUT | Sub-clock oscillator | 32.768 kHz crystal interface for RTC and SDADC24 PLL clock source; supports crystal or external clock input. |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug (SWD) for programming and real-time trace; compatible with standard ARM CoreSight tools. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank flash with Bank Swap | Enables seamless firmware updates: new image written to inactive bank while active bank executes; no external memory or bootloader required. |
| 24-bit SDADC24 with PGA | Programmable gain amplifier supports ±10 mV to ±2.5 V input ranges; digital filter and high-pass stage suppress 50/60 Hz noise for sensor signal conditioning. |
| Segment LCD Controller (SLCDC) | Configurable drive methods (internal boost/capacitor split/resistor division) eliminate external LCD bias IC; supports blinking and partial update. |
| Independent Power Supply RTC | VRTC pin powers RTC and sub-clock oscillator separately; retains calendar/time during main power loss; supports battery backup with EXLVDVBAT detection. |
| Event Link Controller (ELC) | Hardware routing of peripheral events (e.g., ADC completion → DMA trigger → timer start) without CPU intervention, reducing latency and power. |
Applications
| Industrial Smart Meters | Portable Medical Sensors |
|---|---|
|
Use Scenario: Electricity/water/gas meters with tamper detection, pulse counting, and LCD display. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, and segmented LCD drive. Use Value: 24-bit SDADC24 provides >100 dB SNR for accurate current/voltage measurement; dual-bank flash enables secure remote firmware updates. |
Use Scenario: Handheld blood glucose monitors or ECG patch sensors with battery life >1 year. IC Role / Device Role / Timing Role: Low-power sensor hub acquiring analog biosignals, performing local preprocessing, and driving reflective LCD. Use Value: Sub-μA deep-sleep current with AGT timers waking only for ADC sampling; independent VRTC maintains time during battery replacement. |
| Industrial HMI Panels | Secure IoT Edge Nodes |
|
Use Scenario: Factory floor operator interfaces with button feedback, status LEDs, and multi-segment LCD readouts. IC Role / Device Role / Timing Role: Human-machine interface controller handling touch/button inputs, LED PWM control, and LCD refresh timing. Use Value: SLCDC drives up to 45 segments × 4 commons directly; GPT16 timers generate precise PWM for LED dimming without CPU load. |
Use Scenario: Asset trackers or environmental monitors transmitting encrypted sensor data via LoRaWAN/NB-IoT. IC Role / Device Role / Timing Role: Secure edge node executing AES encryption, TRNG key generation, and low-power wireless stack timing. Use Value: Hardware-accelerated AES-GCM encrypts payloads with authentication; TRNG seeds TLS handshakes and firmware signing keys. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2A2AD3CFP#BA1 | 7-channel SDADC24, same 100-pin LQFP package, identical flash/SRAM/security/peripherals except SDADC channel count. | Required where higher-resolution analog sensing across 7+ channels is needed (e.g., multi-phase energy monitoring). | Select when full 7-channel SDADC24 capability is mandatory; otherwise R7FA2A2BD3CFP#BA1 reduces BOM cost and layout complexity. |
| R7FA2E2A93CFP#AA0 | Same RA2A2 family, 100-pin LQFP, but with 256-KB flash, 32-KB SRAM, and no SDADC24-replaces it with enhanced ADC12 and op-amps. | Suitable for cost-sensitive designs prioritizing general-purpose analog I/O over ultra-high-resolution sigma-delta conversion. | Choose for simpler analog requirements and lower memory needs; lacks SDADC24, so not suitable for precision metrology. |
Compared with R7FA2A2AD3CFP#BA1, the R7FA2A2BD3CFP#BA1 reduces SDADC24 channel count from 7 to 4 while retaining identical security, RTC, LCD, and power features-making it optimal for applications needing high-precision 4-channel sensing without over-specifying. Against R7FA2E2A93CFP#AA0, it trades flash/SRAM capacity for integrated 24-bit SDADC24, targeting metrology-critical rather than general-purpose analog roles.
Availability
R7FA2A2BD3CFP#BA1 is available at Aetrix Electronics and suitable for industrial smart meters, portable medical sensors, and secure IoT edge nodes requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R7FA2A2BD3CFP#BA1 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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RA2A2 group delivers ultra-low-power Arm Cortex-M23 MCUs optimized for precision analog sensing, secure firmware execution, and human-machine interface integration in resource-constrained industrial and medical applications.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2A2BD3CFP#BA1?
The R7FA2A2BD3CFP#BA1 features an Arm Cortex-M23 core compliant with the Armv8-M architecture and operates at a maximum frequency of 48 MHz. It includes an Arm Memory Protection Unit (MPU) with 8 configurable regions, DWT and FPB debug units, and CoreSight MTB-M23 trace capability-all documented in the R01DS0418EJ0130 datasheet revision 1.30.
How many channels does the 24-bit Sigma-Delta ADC (SDADC24) support on the R7FA2A2BD3CFP#BA1?
The R7FA2A2BD3CFP#BA1 integrates a 24-bit Sigma-Delta ADC (SDADC24) with 4 differential or single-ended input channels, as confirmed in Table 1.12 and Figure 1.4 of the R01DS0418EJ0130 datasheet. This distinguishes it from the 7-channel variant R7FA2A2AD3CFP#BA1.
Does the R7FA2A2BD3CFP#BA1 support dual-bank flash for safe firmware updates?
Yes, the R7FA2A2BD3CFP#BA1 includes 512-KB code flash organized as two 256-KB banks, enabling Bank Swap functionality. This allows one bank to execute while the other is programmed-critical for fail-safe over-the-air updates without external memory or bootloader intervention.
What LCD drive capability does the R7FA2A2BD3CFP#BA1 provide?
The R7FA2A2BD3CFP#BA1's Segment LCD Controller (SLCDC) supports up to 45 segment outputs and 4 common outputs (or 41 segments × 8 commons), with selectable drive waveforms (A/B), internal voltage boosting, capacitor-split, or external resistor division methods-fully configurable per application needs.
Is the R7FA2A2BD3CFP#BA1 qualified for extended temperature operation?
Yes, the R7FA2A2BD3CFP#BA1 is rated for operation from -40°C to +105°C ambient temperature, as specified in the "Operating Temperature and Packages" section of the R01DS0418EJ0130 datasheet, making it suitable for industrial and automotive under-hood environments.
R7FA2A2BD3CFP#BA1 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#BA1 FAQ
1.How can I place an order for R7FA2A2BD3CFP#BA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2A2BD3CFP#BA1 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#BA1 reliable?
The price and inventory of R7FA2A2BD3CFP#BA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2A2BD3CFP#BA1 is usually 5 days.
3.What payment methods are accepted for R7FA2A2BD3CFP#BA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2A2BD3CFP#BA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2A2BD3CFP#BA1?
R7FA2A2BD3CFP#BA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2A2BD3CFP#BA1 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#BA1?
For technical support, including R7FA2A2BD3CFP#BA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2A2BD3CFP#BA1 requirements.
6.How does Aetrix verify that R7FA2A2BD3CFP#BA1 is sourced from the original manufacturer or authorized distributors?
All R7FA2A2BD3CFP#BA1 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#BA1 meets industry standards.
7.What is the process for return or replacement of R7FA2A2BD3CFP#BA1?
All R7FA2A2BD3CFP#BA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2A2BD3CFP#BA1, 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#BA1 part is unused and in its original packaging.
Return procedure for R7FA2A2BD3CFP#BA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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