My Inquiry
My Account
Renesas R7FA2E1A53CFJ#AA0
- Part No.:
- R7FA2E1A53CFJ#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R7FA2E1A53CFJ#AA0.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:424
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R7FA2E1A53CFJ#AA0 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 32-KB code flash, 16-KB SRAM, a 12-bit ADC, Capacitive Sensing Unit (CTSU2), and integrated security (AES128/256, TRNG). It targets battery-powered HMI, sensor nodes, and industrial control where low power, touch interface, and functional safety are critical.
For engineers reviewing the R7FA2E1A53CFJ#AA0 datasheet, R7FA2E1A53CFJ#AA0 pinout, R7FA2E1A53CFJ#AA0 application, or R7FA2E1A53CFJ#AA0 equivalent, key selection factors include its 32-pin LQFP package with 23 GPIOs, -40°C to +105°C industrial temperature grade, CTSU2-based touch support, and dual watchdog timers (WDT/IWDT) for fail-safe operation.
Technical Context
The R7FA2E1A53CFJ#AA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 regions, enabling secure partitioning of firmware and data. Its clock system integrates HOCO (48 MHz), LOCO (32.768 kHz), and dedicated IWDT oscillator (15 kHz), allowing precise low-power timing and autonomous fail-safe reset.
Peripheral integration includes four SCI modules (UART/SPI/IIC/Smart Card), one I2C bus interface, one SPI channel, two AGT timers for asynchronous event counting, and a GPT32+GPT16 timer suite supporting BLDC motor PWM generation. Safety features include SRAM parity, flash area protection, ADC self-diagnosis, and CAC for clock accuracy validation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, 48 MHz max - enables real-time deterministic execution with TrustZone-M isolation for secure firmware partitions. |
| Memory | 32-KB code flash / 4-KB data flash / 16-KB SRAM - supports field firmware updates, parameter storage, and real-time buffer handling without external RAM. |
| Analog Peripherals | 12-bit ADC12 (10 input channels), 2× ACMPLP, TSN - provides precision sensor signal acquisition and on-die temperature monitoring for thermal management. |
| Capacitive Touch | CTSU2 with 11 touch pins - delivers robust, low-power proximity and button detection through dielectric overlays without mechanical switches. |
| Security | AES128/256 + TRNG - enables hardware-accelerated encryption for secure boot, OTA updates, and data-at-rest protection in connected devices. |
| Power & Temp | 1.6–5.5 V supply, -40°C to +105°C - ensures reliable operation across wide industrial voltage rails and extended ambient conditions. |
| Package | 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch), 23 GPIOs - compact footprint with 5-V-tolerant inputs and N-ch open-drain outputs for direct interfacing with legacy logic. |
Pinout & Package
Package: 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant Sn finish, exposed pad recommended to be connected to VSS or left floating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC pins (pins 1, 32) and dual VSS pins (pins 16, 17) enable low-noise analog/digital separation and stable decoupling with local 0.1-µF capacitors. |
| P000–P015, P100–P113, etc. | General-purpose I/O | 23 configurable GPIOs with pull-up resistors, 5-V tolerance on 1 pin, N-ch open-drain on 15 pins - supports mixed-voltage interfacing and wired-OR logic. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug (SW-DP) enables non-intrusive programming and real-time trace without dedicated JTAG pins. |
| XTAL / EXTAL / XCIN / XCOUT | Crystal oscillator inputs | Supports main crystal (1–20 MHz), sub-crystal (32.768 kHz), and internal oscillators - allows precise RTC and high-accuracy communication timing. |
| AN000–AN009 | ADC input channels | 10 dedicated analog inputs (including AVCC0/AVSS0, VREFH0/VREFL0) - enables simultaneous multi-sensor sampling with internal reference or external precision references. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Multiple low-power modes (SNOOZE, DEEP, STOP) with sub-μA RTC retention current - extends battery life in portable and energy-harvested systems. |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., ADC conversion → DTC transfer → CRC calculation) eliminates CPU polling and reduces active time. |
| Capacitive Touch Unit (CTSU2) | Self-capacitance measurement with noise immunity algorithms - enables reliable touch detection through 2-mm plastic/glass overlays in humid or noisy environments. |
| Dual watchdog system | Independent WDT (ICLK-driven) and IWDT (15-kHz dedicated oscillator) - provides layered fail-safe recovery: IWDT resets MCU if main clock fails or software hangs. |
| Data Transfer Controller (DTC) | Auto-memory-to-peripheral transfers triggered by interrupts - offloads CPU during UART/SPI/ADC burst transfers, improving real-time response and reducing ISR latency. |
Applications
| Smart Thermostat Interface | Industrial Sensor Node |
|---|---|
Use Scenario: Wall-mounted HVAC controller with capacitive touch buttons, temperature/humidity sensing, and wireless connectivity. IC Role / Device Role / Timing Role: Main application MCU managing CTSU2 touch input, ADC-based environmental sensing, RTC calendar scheduling, and SCI-based UART comms to Wi-Fi module. Use Value: Integrated CTSU2 eliminates external touch IC; 16-KB SRAM buffers sensor logs; AES/TRNG secures cloud credentials; 105°C rating ensures reliability inside enclosures. | Use Scenario: Battery-powered vibration/temperature monitor mounted on rotating machinery in factory settings. IC Role / Device Role / Timing Role: Low-power data acquisition node using AGT timers for wake-on-event, ADC12 for analog sensor sampling, and SCI UART for periodic telemetry upload. Use Value: Sub-μA STOP mode extends 10-year battery life; CAC validates clock integrity before data timestamping; IWDT guarantees recovery from EMI-induced lockup. |
| Medical Wearable Monitor | Appliance Control Panel |
Use Scenario: Disposable pulse oximeter with optical sensors, LED drivers, and BLE interface. IC Role / Device Role / Timing Role: System controller executing FDA-grade safety checks (SRAM parity, flash protection), driving LEDs via GPT PWM, and managing BLE HCI over SCI. Use Value: DOC and CRC detect memory/data corruption; LVD0/LVD1/LVD2 provide multi-threshold brown-out detection; 1.6-V min supply enables operation down to near-dead battery. | Use Scenario: Microwave oven control board requiring touch UI, relay/motor control, and fault monitoring. IC Role / Device Role / Timing Role: HMI and safety supervisor running CTSU2 for touch keys, GPT for fan/motor PWM, and WDT/IWDT for dual-redundant timeout supervision. Use Value: POEG disables GPT outputs during fault conditions; register write protection prevents accidental configuration changes; 5-V tolerant inputs interface directly with legacy panel logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A52DFJ#AA0 | Same package and pinout; rated for -40°C to +85°C industrial grade (vs. +105°C); identical peripherals and memory. | Suitable for consumer or indoor industrial use where extended temperature is not required. | Select when cost sensitivity outweighs need for 105°C operation; no PCB or firmware changes needed. |
| STM32L071KBU6 | ARM Cortex-M0+, 32 MHz, 128-KB flash, 20-KB RAM, 12-bit ADC, touch sensing (TSC), but no CTSU2-level noise immunity or AES256. | Lacks integrated CTSU2 and dual watchdog architecture; requires external crypto for secure boot. | Choose only if existing STM32 toolchain familiarity offsets loss of Renesas-specific safety features and touch robustness. |
Compared with R7FA2E1A53CFJ#AA0, the R7FA2E1A52DFJ#AA0 offers identical functionality at lower temperature grade and cost, while the STM32L071KBU6 trades Renesas' CTSU2 and IWDT advantages for broader ecosystem support but weaker embedded security and touch performance.
Availability
R7FA2E1A53CFJ#AA0 is available at Aetrix Electronics and suitable for smart home controllers, industrial sensor nodes, medical wearables, and appliance HMI panels requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA2E1A53CFJ#AA0 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 automotive, industrial, and IoT markets.
The RA2E1 group is designed for cost-sensitive, ultra-low-power embedded applications demanding robust HMI, functional safety, and hardware security - targeting battery-operated and space-constrained industrial endpoints.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E1A53CFJ#AA0?
The R7FA2E1A53CFJ#AA0 features an Arm Cortex-M23 core compliant with the Armv8-M architecture and operates at a maximum frequency of 48 MHz. This enables high-efficiency real-time processing while maintaining low power consumption and TrustZone-M security isolation capabilities essential for secure firmware execution in the R7FA2E1A53CFJ#AA0.
Does the R7FA2E1A53CFJ#AA0 support capacitive touch sensing, and how many channels are available?
Yes, the R7FA2E1A53CFJ#AA0 integrates the Capacitive Sensing Unit (CTSU2) supporting up to 11 touch sensing channels. These are mapped to dedicated pins (TS00, TS02-CFC, TS04–TS07, TS08-CFC–TS16-CFC, TS17, TS18, TS21–TS25, TS26-CFC–TS28-CFC, TS30-CFC–TS34-CFC), enabling robust proximity and button detection through insulating materials without mechanical wear in the R7FA2E1A53CFJ#AA0.
What are the memory resources available on the R7FA2E1A53CFJ#AA0?
The R7FA2E1A53CFJ#AA0 includes 32-KB of code flash memory, 4-KB of data flash memory (rated for 100,000 program/erase cycles), and 16-KB of on-chip SRAM with parity protection. This configuration supports firmware updates, parameter storage, and real-time data buffering while ensuring data integrity through hardware parity checking in the R7FA2E1A53CFJ#AA0.
What safety and security features does the R7FA2E1A53CFJ#AA0 provide?
The R7FA2E1A53CFJ#AA0 includes SRAM parity error detection, flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), Cyclic Redundancy Check (CRC) calculator, Data Operation Circuit (DOC), Independent Watchdog Timer (IWDT), and hardware AES128/256 with True Random Number Generator (TRNG). These features collectively support IEC 61508 SIL2 and IEC 62443 compliance requirements in the R7FA2E1A53CFJ#AA0.
What package type and pin count does the R7FA2E1A53CFJ#AA0 use?
The R7FA2E1A53CFJ#AA0 is supplied in a 32-pin LQFP package (7 mm × 7 mm, 0.8 mm pitch) with 23 general-purpose I/O pins, 10 ADC input channels, and dedicated debug (SWDIO/SWCLK), reset (RES), and oscillator (XTAL/EXTAL/XCIN/XCOUT) pins. This compact industrial-grade package supports high-density PCB layouts and direct compatibility with standard reflow processes for the R7FA2E1A53CFJ#AA0.
R7FA2E1A53CFJ#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- RA2E1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, SmartCard, SPI, UART/USART
- Peripherals:
- AES, Capacitive Touch, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A53CFJ#AA0 FAQ
1.How can I place an order for R7FA2E1A53CFJ#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A53CFJ#AA0 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 R7FA2E1A53CFJ#AA0 reliable?
The price and inventory of R7FA2E1A53CFJ#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A53CFJ#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A53CFJ#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A53CFJ#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A53CFJ#AA0?
R7FA2E1A53CFJ#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A53CFJ#AA0 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 R7FA2E1A53CFJ#AA0?
For technical support, including R7FA2E1A53CFJ#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A53CFJ#AA0 requirements.
6.How does Aetrix verify that R7FA2E1A53CFJ#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A53CFJ#AA0 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 R7FA2E1A53CFJ#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A53CFJ#AA0?
All R7FA2E1A53CFJ#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A53CFJ#AA0, 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 R7FA2E1A53CFJ#AA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A53CFJ#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E1A53CFJ#AA0 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…
