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Renesas R7FA2E1A53CDA#HC0
- Part No.:
- R7FA2E1A53CDA#HC0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 25-UFBGA, WLCSP
- Datasheet:
-
R7FA2E1A53CDA#HC0.pdf
- Description:
- MCU RA2E1 ARM CM23 48MHZ 32K/16K
- Quantity:
- Payment:
- Shipping:
Inventory:3,223
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Product details
Overview
R7FA2E1A53CDA#HC0 from Renesas Electronics 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 Touch Sensing Unit (CTSU2), and integrated AES128/256 encryption - deployed in battery-powered HMI interfaces, smart sensors, and industrial control nodes.
For engineers reviewing the R7FA2E1A53CDA#HC0 datasheet, R7FA2E1A53CDA#HC0 pinout, R7FA2E1A53CDA#HC0 application, or R7FA2E1A53CDA#HC0 equivalent, key selection criteria include its 25-pin WLCSP package, -40°C to +85°C industrial temperature grade, CTSU2-based touch channel count (10 pins), and support for low-power AGT timers with external event triggering.
Technical Context
The R7FA2E1A53CDA#HC0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 regions, debug via SW-DP, and safety features including SRAM parity checking, Flash area protection, and Clock Frequency Accuracy Measurement Circuit (CAC). It integrates a dedicated 15-kHz IWDT oscillator for fail-safe reset independence.
Its analog subsystem includes a 12-bit successive-approximation ADC with up to 8 input channels, two low-power analog comparators (ACMPLP), and an on-die temperature sensor (TSN) routed to ADC12 - all operating across 1.6–5.5 V supply range with LVD monitoring at three configurable thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, 48 MHz max - enables real-time deterministic execution with TrustZone-M security extensions. |
| Memory | 32-KB code flash / 4-KB data flash / 16-KB SRAM with parity - supports firmware updates, parameter storage, and robust runtime data integrity. |
| Analog Peripherals | 12-bit ADC (8 channels), 2× ACMPLP, TSN - delivers precision sensing for environmental monitoring and touchless UI feedback. |
| Timers | GPT32 ×1, GPT16 ×6, AGT ×2, RTC, WDT/IWDT - provides motor control PWM, low-power wake-up timing, calendar functions, and dual-watchdog redundancy. |
| Connectivity | SCI ×3, IIC ×1, SPI ×1, CTSU2 ×10 - enables UART-based diagnostics, I²C sensor networks, SPI displays, and capacitive touch panels without external controllers. |
| Package & Temp | 25-pin WLCSP (2.14 mm × 2.27 mm, 0.4 mm pitch), -40°C to +85°C - suits space-constrained portable and industrial edge devices with extended thermal reliability. |
| Security | AES128/256, TRNG, register write protection, illegal access detection - meets IEC 62443-3-3 SL1 requirements for secure boot and encrypted communication. |
Pinout & Package
Package: 25-pin Wafer-Level Chip-Scale Package (WLCSP), 2.14 mm × 2.27 mm, 0.4 mm pitch, exposed die pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC pins (pins 1, 25) and dual VSS pins (pins 12, 13) enable low-noise analog/digital power separation and stable decoupling in compact layout. |
| P000–P015, P100–P113, etc. | General-purpose I/O | 20 total I/O pins with 5-V tolerance on 3 pins, N-ch open-drain on 14 pins, and programmable pull-up - supports mixed-voltage interfacing and LED driving. |
| XCIN / XCOUT | Sub-clock oscillator interface | 32.768 kHz crystal connection for RTC operation; required for calendar mode and low-power timekeeping during deep sleep. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug port enables in-circuit programming and real-time trace without additional pins or headers. |
| TS00–TS07, TS21–TS25 | Capacitive touch inputs | 10 dedicated CTSU2 touch pins (per Table 1.13) - supports up to 10 independent buttons/sliders with noise-immune delta-sigma measurement. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Active current as low as 64 µA/MHz; deep sleep with RTC active at 0.29 µA - extends battery life in coin-cell-powered IoT endpoints. |
| Capacitive Touch Sensing Unit (CTSU2) | 10-channel touch support with auto-tuning, noise cancellation, and proximity detection - eliminates mechanical buttons in consumer and medical HMI. |
| Hardware-accelerated security | Dedicated AES engine (128/256-bit) and TRNG - enables TLS handshake acceleration and secure key generation without CPU overhead. |
| Flexible clock system | HOCO (48 MHz), LOCO (32.768 kHz), and CAC for real-time clock accuracy validation - ensures timing compliance in safety-critical logging applications. |
| Robust safety mechanisms | SRAM parity check, Flash protection, IWDT with independent oscillator, and illegal memory access detection - satisfies IEC 61508 SIL2 functional safety requirements. |
Applications
| Smart Thermostat Interface | Portable Medical Sensor Hub |
|---|---|
|
Use Scenario: Battery-powered wall-mounted thermostat with capacitive touch controls, ambient temperature/humidity sensing, and BLE connectivity. IC Role / Device Role / Timing Role: Primary MCU managing CTSU2 touch inputs, ADC sampling of thermistor/hygrometer, RTC-based scheduling, and SPI-to-BLE bridge. Use Value: 25-pin WLCSP enables minimal PCB footprint; 32-KB flash accommodates OTA update stack; CTSU2 eliminates overlay wear and improves ESD immunity. |
Use Scenario: Handheld pulse oximeter with OLED display, optical sensor interface, and rechargeable Li-ion management. IC Role / Device Role / Timing Role: System controller handling ADC acquisition from photodiode/LED drivers, AGT-triggered LED pulsing, and low-power display refresh via SCI UART. Use Value: Dual AGT timers synchronize optical sampling with LED drive; 1.6–5.5 V operation supports direct battery input; AES secures patient data before BLE transmission. |
| Industrial Edge Node Controller | Wireless Smart Meter Interface |
|
Use Scenario: DIN-rail mounted sensor node aggregating RS-485 Modbus data, local relay control, and LoRaWAN uplink. IC Role / Device Role / Timing Role: Central processor executing Modbus RTU over SCI, controlling GPT-driven relays, and managing DTC-assisted LoRa packet assembly. Use Value: 3× SCI ports allow simultaneous Modbus master/slave and LoRa interface; CRC calculator validates fieldbus packets; 8-region MPU isolates protocol stacks. |
Use Scenario: Tamper-resistant electricity meter with metrology IC interface, LCD driver, and secure firmware update capability. IC Role / Device Role / Timing Role: Secure host MCU interfacing with metrology ASIC via SPI, updating LCD via SCI, and validating firmware signatures using AES+TRNG. Use Value: Data flash (4 KB) stores calibration coefficients and tamper logs; register write protection prevents accidental configuration overwrite; LVD monitors brown-out during meter read cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A52DDA#HC0 | Same 32-KB flash, 16-KB SRAM, and WLCSP-25 package but rated for -40°C to +85°C industrial grade (C-grade) instead of D-grade; identical CTSU2 channel count and peripheral set. | Targeted at cost-sensitive consumer electronics where full industrial qualification is not required. | Select R7FA2E1A52DDA#HC0 when BOM cost optimization is prioritized and ambient operating conditions remain within standard industrial limits. |
| R7FA2E1A53CFL#AA0 | Same RA2E1 group, 32-KB flash, 16-KB SRAM, and C-grade rating, but in 48-pin LQFP (7 mm × 7 mm) with 37 I/O pins and 12 ADC channels - no WLCSP form factor. | Suitable for prototyping, higher I/O count designs, or applications requiring rework-friendly packaging. | Choose R7FA2E1A53CFL#AA0 when board-level testability, thermal dissipation, or legacy LQFP compatibility outweigh miniaturization needs. |
Compared with R7FA2E1A53CDA#HC0, R7FA2E1A52DDA#HC0 offers identical functionality at lower qualification cost, while R7FA2E1A53CFL#AA0 trades size for I/O scalability and manufacturability - making the WLCSP variant optimal only when volume, space, and power constraints dominate.
Availability
R7FA2E1A53CDA#HC0 is available at Aetrix Electronics and suitable for battery-powered HMI interfaces, portable medical sensors, industrial edge nodes, and wireless smart meter interfaces requiring stable component supply across long production lifecycles.
Supply support for R7FA2E1A53CDA#HC0 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 markets, with over 40 years of MCU innovation.
The RA2E1 Group, including R7FA2E1A53CDA#HC0, was designed specifically for ultra-low-power, cost-sensitive applications demanding integrated security, capacitive touch, and seamless scalability across Renesas' Arm-based RA portfolio.
FAQ
What is the maximum operating frequency of the R7FA2E1A53CDA#HC0?
The R7FA2E1A53CDA#HC0 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 external crystal sources, and is maintained across its full industrial temperature range (-40°C to +85°C) and 1.6–5.5 V supply voltage. The R7FA2E1A53CDA#HC0 includes clock monitoring via CAC to validate stability under varying conditions.
How many capacitive touch channels does the R7FA2E1A53CDA#HC0 support?
The R7FA2E1A53CDA#HC0 supports 10 capacitive touch sensing channels via its CTSU2 peripheral, as confirmed in Table 1.13 of the RA2E1 datasheet (R01DS0386EJ0170). These channels map to dedicated pins TS00–TS07 and TS21–TS25 in its 25-pin WLCSP package, enabling robust button, slider, or proximity detection without external components.
Does the R7FA2E1A53CDA#HC0 include hardware encryption capabilities?
Yes, the R7FA2E1A53CDA#HC0 integrates a dedicated hardware AES engine supporting both 128-bit and 256-bit key lengths, along with a True Random Number Generator (TRNG). These modules operate independently of the CPU, enabling secure boot, encrypted firmware updates, and TLS offload - all verified in the RA2E1 security feature list (Section 1.1).
What is the pin count and package type of the R7FA2E1A53CDA#HC0?
The R7FA2E1A53CDA#HC0 uses a 25-pin Wafer-Level Chip-Scale Package (WLCSP) with dimensions of 2.14 mm × 2.27 mm and 0.4 mm pitch, as specified in Figure 1.2 (part numbering) and Table 1.12 of the RA2E1 datasheet. Its package code "DA" explicitly denotes this WLCSP variant, and the exposed die pad is recommended to connect to VSS for thermal and electrical performance.
Which analog peripherals are available on the R7FA2E1A53CDA#HC0?
The R7FA2E1A53CDA#HC0 includes a 12-bit successive-approximation ADC with up to 8 input channels (AN000–AN010, AN017–AN022), two low-power analog comparators (ACMPLP0/1), and an on-die temperature sensor (TSN) - all documented in Table 1.8 and Figure 1.1. The ADC supports internal reference selection and conversion trigger via ADTRG0 or timer events.
R7FA2E1A53CDA#HC0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 25-UFBGA, WLCSP
- Series:
- RA2E1
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, SmartCard, SPI, UART/USART
- Peripherals:
- AES, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 20
- 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 8x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A53CDA#HC0 FAQ
1.How can I place an order for R7FA2E1A53CDA#HC0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A53CDA#HC0 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 R7FA2E1A53CDA#HC0 reliable?
The price and inventory of R7FA2E1A53CDA#HC0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A53CDA#HC0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A53CDA#HC0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A53CDA#HC0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A53CDA#HC0?
R7FA2E1A53CDA#HC0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A53CDA#HC0 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 R7FA2E1A53CDA#HC0?
For technical support, including R7FA2E1A53CDA#HC0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A53CDA#HC0 requirements.
6.How does Aetrix verify that R7FA2E1A53CDA#HC0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A53CDA#HC0 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 R7FA2E1A53CDA#HC0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A53CDA#HC0?
All R7FA2E1A53CDA#HC0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A53CDA#HC0, 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 R7FA2E1A53CDA#HC0 part is unused and in its original packaging.
Return procedure for R7FA2E1A53CDA#HC0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E1A53CDA#HC0 Tags
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