My Inquiry
My Account
Renesas R7FS3A37A3A01CFB#AA0
- Part No.:
- R7FS3A37A3A01CFB#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R7FS3A37A3A01CFB#AA0.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,266
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R7FS3A37A3A01CFB#AA0 from Renesas is a 48-MHz Arm® Cortex®-M4 microcontroller with FPU, 512-KB code flash, 96-KB SRAM, integrated Segment LCD Controller (SLCDC), Capacitive Touch Sensing Unit (CTSU), USB 2.0 Full-Speed interface, 14-bit ADC, 12-bit DAC, and hardware security engine (SCE5). It targets industrial HMI, smart metering, and battery-backed embedded control requiring real-time responsiveness, low-power operation, and secure firmware execution.
For engineers reviewing the R7FS3A37A3A01CFB#AA0 datasheet, R7FS3A37A3A01CFB#AA0 pinout, R7FS3A37A3A01CFB#AA0 application, or R7FS3A37A3A01CFB#AA0 equivalent, key selection considerations include its –40°C to +105°C operating range, 144-pin LQFP package, dual watchdog timers (WDT/IWDT), ECC-protected SRAM, and support for USB Battery Charging Specification 1.2 in host/device mode.
Technical Context
This MCU implements an Armv7E-M architecture with DSP extensions and single-precision FPU, enabling deterministic signal processing and floating-point math in resource-constrained environments. Its memory subsystem includes 512-KB code flash with 100K-cycle data flash, 96-KB SRAM split into 80-KB parity and 16-KB ECC regions, and Memory Mirror Function (MMF) for flexible firmware load/link address decoupling.
The peripheral set integrates safety-critical features including Clock Frequency Accuracy Measurement Circuit (CAC), CRC calculator, Data Operation Circuit (DOC), register write protection, illegal memory access detection, and independent watchdog timer (IWDT) with dedicated 15-kHz oscillator - all supporting functional safety compliance in industrial applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 48 MHz max - enables real-time control with floating-point math and DSP instructions. |
| Memory | 512-KB code flash / 8-KB data flash / 96-KB SRAM (80-KB parity + 16-KB ECC) - supports robust firmware storage, parameter retention, and error-resilient runtime data. |
| Operating Temp | –40°C to +105°C - qualified for extended-temperature industrial and automotive under-hood environments. |
| Package | 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch) - standard surface-mount footprint compatible with automated assembly and thermal management. |
| Analog Peripherals | 14-bit ADC (26 channels), 12-bit DAC, 2× ACMPLP, 4× OPAMP, TSN - enables precision sensor interfacing and analog signal conditioning without external components. |
| Connectivity | USB 2.0 FS (host/device), CAN 2.0B, 6× SCI, 3× I²C, 2× SPI, QSPI, SDHI, SSIE - supports mixed-protocol communication in complex embedded systems. |
| Security | SCE5 with AES128/256, GHASH, TRNG - provides hardware-accelerated cryptographic operations for secure boot and firmware updates. |
Pinout & Package
144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant Sn terminal finish, rated for –40°C to +105°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers core/peripherals; VSS is common reference - requires local 0.1-μF decoupling per VCC pin. |
| VBATT | Battery backup input | Supplies RTC, SOSC, LOCO, and backup registers during main power loss - enables calendar timekeeping and wake-up from deep sleep. |
| XTAL / EXTAL | Main crystal oscillator interface | Supports 1–20 MHz crystals; enables precise timing for USB, CAN, and real-time control loops. |
| XCIN / XCOUT | Sub-clock oscillator interface | Connects 32.768 kHz crystal for RTC calendar mode and low-power wake-up timing. |
| RES | Reset input | Active-low asynchronous reset - initiates full system initialization and register clearing on assertion. |
| SWDIO / SWCLK | Serial Wire Debug interface | Enables non-intrusive debugging, flash programming, and real-time trace via ARM CoreSight™ infrastructure. |
| USB_VBUS / USB_DP / USB_DM | USB 2.0 Full-Speed interface | Integrated transceiver with on-chip regulator - supports self-powered or bus-powered device operation and USB BC 1.2 charging negotiation. |
| SEG0–SEG53 / COM0–COM7 | Segment LCD driver outputs | Direct drive for up to 54 segments × 4 commons or 50 segments × 8 commons - eliminates external LCD bias circuitry. |
| TSU00–TSU26 | Capacitive touch sensing inputs | 27-channel CTSU with built-in charge-transfer measurement - enables button/slider/gesture detection with minimal PCB layout overhead. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Mirror Function (MMF) | Maps flash load address to link address in unused 23-bit memory space - simplifies firmware field updates and bootloader design. |
| Event Link Controller (ELC) | Hardware routing of peripheral events (e.g., ADC EOC → DMA trigger) without CPU intervention - reduces latency and ISR overhead. |
| Realtime Clock (RTC) with Calendar Mode | 100-year Gregorian calendar (2000–2099) with leap-year correction - maintains accurate timekeeping across power cycles using VBATT. |
| Low Power Asynchronous Timers (AGT) | Two 16-bit timers clocked by LOCO (32.768 kHz) - enables precise wake-up timing from ultra-low-power modes without waking the core. |
| Secure Crypto Engine 5 (SCE5) | Hardware AES128/256 encryption/decryption, GHASH, and TRNG - accelerates secure boot, OTA updates, and TLS handshake operations. |
Applications
| Industrial HMI Panel | Smart Energy Meter |
|---|---|
Use Scenario: A wall-mounted control panel with segmented LCD display, capacitive touch buttons, and USB configuration port in factory automation. IC Role / Device Role / Timing Role: Primary application controller managing display refresh, touch scan, USB CDC communication, and real-time logging via RTC timestamping. Use Value: Integrated SLCDC and CTSU eliminate external driver ICs; USB FS with BC 1.2 enables field technician reconfiguration via standard USB-C cable. | Use Scenario: DIN-rail mounted electricity meter with tamper detection, pulse output, and secure firmware update capability. IC Role / Device Role / Timing Role: System-on-chip performing energy calculation, metrology interface (via SPI/SCI), secure OTA updates, and battery-backed time-of-use billing. Use Value: ECC SRAM and SCE5 ensure data integrity and cryptographic key protection; –40°C to +105°C rating supports outdoor enclosure deployment. |
| Medical Diagnostic Handheld | Automotive Body Control Module |
Use Scenario: Portable blood glucose monitor with LCD display, analog sensor front-end, and USB data export to clinic PC. IC Role / Device Role / Timing Role: Signal acquisition controller digitizing analog sensor output via 14-bit ADC, applying calibration math on Cortex-M4+FPU, and formatting results for USB HID transfer. Use Value: On-chip OPAMPs and ACMPLP enable direct sensor amplification and threshold detection; TRNG supports HIPAA-compliant session key generation. | Use Scenario: Under-dash module controlling door locks, window lifts, and interior lighting with CAN network integration. IC Role / Device Role / Timing Role: CAN node processor handling message filtering, PWM motor control (GPT), and low-power wake-on-LIN/CAN event. Use Value: Dual watchdog (WDT + IWDT) ensures fail-safe recovery; 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 |
|---|---|---|---|
| R7FS3A37A2A01CFB#AA0 | Same core, peripherals, and package but rated for –40°C to +85°C; 512-KB flash, 96-KB SRAM, no ECC on SRAM. | Targeted at commercial/industrial environments without extended temperature requirements. | Select when full –40°C to +105°C qualification is unnecessary and cost optimization is prioritized. |
| R7FA6M2AF3CFP#AA0 | Arm Cortex-M4 @ 120 MHz, 1-MB flash, 256-KB SRAM, TrustZone, no SLCDC/CTSU, different pinout (100-pin LQFP). | Higher performance and security focus; lacks integrated HMI peripherals but adds TrustZone isolation. | Choose for applications needing higher compute throughput and hardware-enforced security partitioning over integrated display/touch. |
Compared with R7FS3A37A3A01CFB#AA0, the R7FS3A37A2A01CFB#AA0 offers identical functionality at lower temperature grade and reduced safety features, while the R7FA6M2AF3CFP#AA0 trades HMI integration for enhanced performance and TrustZone - making each suitable for distinct design priorities: extended-temp reliability, cost-sensitive volume production, or security-critical compute.
Availability
R7FS3A37A3A01CFB#AA0 is available at Aetrix Electronics and suitable for industrial HMI, smart metering, and medical handheld devices requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for R7FS3A37A3A01CFB#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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The R7FS3A37A3A01CFB#AA0 belongs to the Synergy S3A3 microcontroller group, designed specifically for scalable, secure, and low-power human-machine interface applications with integrated LCD, touch, and USB connectivity.
FAQ
What is the maximum operating frequency of the R7FS3A37A3A01CFB#AA0?
The R7FS3A37A3A01CFB#AA0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M4 core with FPU. This speed is achievable across its full –40°C to +105°C operating range when powered within the specified 1.6 V to 5.5 V VCC range and with appropriate clock source configuration (e.g., HOCO or PLL).
Does the R7FS3A37A3A01CFB#AA0 support USB device and host modes simultaneously?
No, the R7FS3A37A3A01CFB#AA0 USB 2.0 Full-Speed module supports either device mode or host mode at a given time, not simultaneous dual-role operation. Mode selection is configured at initialization via software; switching requires reinitialization of the USBFS peripheral and associated descriptors.
How many analog input channels does the 14-bit ADC (ADC14) support on the R7FS3A37A3A01CFB#AA0?
The R7FS3A37A3A01CFB#AA0's 14-bit ADC14 supports up to 26 analog input channels, as confirmed in the function comparison table (Page 12) of the datasheet. This count reflects the specific variant R7FS3A37A3A01CFB, which differs from the superset's 28-channel capability due to pin multiplexing constraints in the 144-pin LQFP package.
What is the purpose of the Memory Mirror Function (MMF) in the R7FS3A37A3A01CFB#AA0?
The Memory Mirror Function (MMF) in the R7FS3A37A3A01CFB#AA0 maps a chosen load address in code flash memory to a fixed link address in unused 23-bit memory space. This allows application code to be developed and linked for execution at a fixed virtual address while being stored at any physical flash location - simplifying firmware updates and bootloader implementation without requiring position-independent code.
Is the R7FS3A37A3A01CFB#AA0 pin-compatible with other S3A3 group microcontrollers?
Yes, the R7FS3A37A3A01CFB#AA0 is pin-compatible with other 144-pin LQFP variants in the S3A3 group, such as R7FS3A37A2A01CFB#AA0, sharing identical pin functions and electrical characteristics. However, it is not pin-compatible with S3A3 devices in different packages (e.g., LGA or BGA) or with members of other Synergy families like S1 or S5.
R7FS3A37A3A01CFB#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- Renesas Synergy™ S3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, MMC/SD, QSPI, SCI, SPI, SSI, UART/USART, USB
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 124
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 96K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 28x14b; D/A 2x8b, 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS3A37A3A01CFB#AA0 FAQ
1.How can I place an order for R7FS3A37A3A01CFB#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS3A37A3A01CFB#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 R7FS3A37A3A01CFB#AA0 reliable?
The price and inventory of R7FS3A37A3A01CFB#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS3A37A3A01CFB#AA0 is usually 5 days.
3.What payment methods are accepted for R7FS3A37A3A01CFB#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS3A37A3A01CFB#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FS3A37A3A01CFB#AA0?
R7FS3A37A3A01CFB#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS3A37A3A01CFB#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 R7FS3A37A3A01CFB#AA0?
For technical support, including R7FS3A37A3A01CFB#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS3A37A3A01CFB#AA0 requirements.
6.How does Aetrix verify that R7FS3A37A3A01CFB#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FS3A37A3A01CFB#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 R7FS3A37A3A01CFB#AA0 meets industry standards.
7.What is the process for return or replacement of R7FS3A37A3A01CFB#AA0?
All R7FS3A37A3A01CFB#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS3A37A3A01CFB#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 R7FS3A37A3A01CFB#AA0 part is unused and in its original packaging.
Return procedure for R7FS3A37A3A01CFB#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FS3A37A3A01CFB#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…
