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Renesas R7FS3A37A3A01CFP#BA0
- Part No.:
- R7FS3A37A3A01CFP#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R7FS3A37A3A01CFP#BA0.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 100LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:720
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Product details
Overview
R7FS3A37A3A01CFP#BA0 from Renesas Electronics 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, 14-bit ADC, and AES-128/256 security engine - designed for industrial HMI, smart meters, and battery-backed embedded control systems operating from –40°C to +105°C.
For engineers reviewing the R7FS3A37A3A01CFP#BA0 datasheet, R7FS3A37A3A01CFP#BA0 pinout, R7FS3A37A3A01CFP#BA0 application, or R7FS3A37A3A01CFP#BA0 equivalent, key selection considerations include its 100-pin LQFP package, dual AGT timers for low-power wake-up, on-chip USB transceiver with Battery Charging Spec 1.2 compliance, and ECC-protected SRAM for functional safety-critical firmware.
Technical Context
The R7FS3A37A3A01CFP#BA0 implements an Armv7E-M architecture with DSP extensions and single-precision FPU, supporting deterministic real-time execution up to 48 MHz. Its memory subsystem includes 512-KB code flash with FCACHE acceleration, 8-KB data flash rated for 100,000 erase/write cycles, and 96-KB SRAM split into 80-KB parity-protected and 16-KB ECC-protected regions.
Peripherals are tightly coupled via the Event Link Controller (ELC), enabling hardware-triggered DMA transfers without CPU intervention. The MCU integrates dual independent watchdogs (WDT and IWDT), Clock Frequency Accuracy Measurement Circuit (CAC), and register write protection - all aligned with IEC 61508 SIL2 and ISO 26262 ASIL-B readiness requirements for industrial and automotive-adjacent applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 @ 48 MHz with FPU and MPU (8 regions) |
| Memory | 512-KB code flash + 8-KB data flash + 96-KB SRAM (80-KB parity / 16-KB ECC) |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), –40°C to +105°C operation |
| Analog | 14-bit ADC (25 channels), 12-bit DAC, 2× ACMPLP, 4× OPAMP, TSN |
| Connectivity | USB 2.0 FS (on-chip transceiver, BC 1.2 compliant), CAN 2.0B, 6× SCI, 3× I2C, 2× SPI, QSPI, SDHI |
| HMI | Segment LCD Controller (up to 8 commons × 17 segments), CTSU (24 electrodes) |
| Security | SCE5 crypto engine (AES-128/256, GHASH, TRNG) |
Pinout & Package
100-pin LQFP (PLQP0100KB-B) package with 0.5 mm pitch, 14 mm × 14 mm body, exposed pad for thermal dissipation. Pin functions include VCC/VSS power rails, 81 configurable I/O pins (including 9 with 5-V tolerance), dedicated USB D+/D–, SCI/I2C/SPI signal groups, and SLCDC segment/common drivers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC (1.6–5.5 V) powers core/peripherals; VSS reference for all analog/digital I/O |
| XTAL / EXTAL | Main clock oscillator interface | Supports 1–20 MHz crystal; enables precise timing for RTC, USB, and high-accuracy ADC sampling |
| USB_DP / USB_DM | USB 2.0 Full-Speed differential pair | On-chip transceiver eliminates external PHY; supports BC 1.2 charging detection and enumeration as host/device |
| SEG0–SEG20 / COM0–COM7 | Segment LCD driver outputs | Direct drive of up to 8 commons × 17 segments; internal voltage boost enables contrast control across 16 steps |
| TSI00–TSI23 | Capacitive touch sensing inputs | 24-channel CTSU supports proximity, slider, and button detection with noise immunity in noisy industrial environments |
| AD00–AD24 | Analog input channels | 25-channel 14-bit ADC with selectable resolution (12-/14-bit); supports temperature sensor and internal reference inputs |
Key Features
| Feature | Design Value |
|---|---|
| Memory Mirror Function (MMF) | Enables seamless firmware updates by mapping load address to link address in unused 23-bit memory space |
| Event Link Controller (ELC) | Hardware routing of peripheral events (e.g., ADC end-of-conversion → DMAC trigger) without CPU overhead |
| Low-Power Asynchronous Timers (AGT) | Two 16-bit timers running independently on LOCO (32.768 kHz) for wake-up from deep-sleep modes |
| Battery Backup Support | VBATT pin powers RTC, SOSC, backup registers, and wakeup logic during main supply failure |
| Secure Crypto Engine 5 (SCE5) | Hardware-accelerated AES-128/256 encryption/decryption with key management and TRNG entropy source |
Applications
| Industrial HMI Panels | Smart Energy Meters |
|---|---|
Use Scenario: Standalone panel with segmented LCD display, capacitive touch buttons, and local data logging. IC Role / Device Role / Timing Role: Primary controller managing display refresh, touch scan, USB firmware updates, and secure metering data storage. Use Value: Integrated SLCDC and CTSU eliminate external driver ICs; 512-KB flash accommodates dual-bank OTA updates with rollback. | Use Scenario: DIN-rail mounted electricity meter with tamper detection, real-time tariff calculation, and USB/RS-485 communication. IC Role / Device Role / Timing Role: Real-time data acquisition hub synchronizing ADC sampling, RTC calendar, and secure cryptographic signing of consumption logs. Use Value: 14-bit ADC ensures ±0.1% energy measurement accuracy; SCE5 enables AES-encrypted data export compliant with DLMS/COSEM standards. |
| Medical Diagnostic Devices | Automotive Body Control Modules |
Use Scenario: Portable blood glucose monitor with LCD display, touch interface, and USB data export to clinic systems. IC Role / Device Role / Timing Role: Safety-aware controller executing FDA-compliant firmware with runtime self-test (ADC diagnosis, CAC clock validation). Use Value: ECC SRAM and IWDT provide fault containment; CAC validates HOCO frequency drift to ensure accurate timing for sensor sampling intervals. | Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting with LIN/UART diagnostics. IC Role / Device Role / Timing Role: Low-power node managing PWM motor drives, analog sensor monitoring (temperature, position), and CAN bus messaging. Use Value: GPT32 timers generate precise 20-kHz PWM for quiet motor control; CAN 2.0B mailbox FIFO handles burst traffic during vehicle startup sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FS3A37A2A01CLJ | Same core/peripherals but rated for –40°C to +85°C; 100-pin LGA package; 100-KB SRAM (no ECC) | Lacks ECC SRAM and extended temperature grade; no battery backup support | Select when cost-sensitive consumer applications do not require functional safety or wide-temp operation |
| R7FA4M1AB3CFM | Arm Cortex-M4 @ 48 MHz, 512-KB flash, but only 128-KB SRAM; no SLCDC/CTSU; includes TrustZone and more advanced SCE | Targeted at secure IoT edge nodes; lacks integrated HMI peripherals | Choose when prioritizing PSA Level 2 security over display/touch integration |
Compared with R7FS3A37A3A01CFP#BA0, the R7FS3A37A2A01CLJ offers identical feature set at lower temperature grade and LGA packaging, while the R7FA4M1AB3CFM trades HMI capability for enhanced security isolation and larger SRAM - making R7FS3A37A3A01CFP#BA0 optimal for cost-constrained, temperature-hardened HMI designs requiring integrated display and touch.
Availability
R7FS3A37A3A01CFP#BA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, medical diagnostic devices, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FS3A37A3A01CFP#BA0 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and enterprise applications.
The R7FS3A37A3A01CFP#BA0 belongs to the Synergy S3A3 microcontroller group - designed specifically for scalable, secure, and human-machine interface–centric embedded systems requiring integrated LCD/touch, USB, and functional safety features.
FAQ
What is the maximum operating frequency and core architecture of the R7FS3A37A3A01CFP#BA0?
The R7FS3A37A3A01CFP#BA0 features an Arm Cortex-M4 core with Floating Point Unit (FPU), operating at a maximum frequency of 48 MHz. It implements the Armv7E-M architecture with DSP instruction set and an 8-region Memory Protection Unit (MPU). This configuration delivers deterministic real-time performance suitable for industrial control and HMI applications where computational throughput and memory safety are critical. The R7FS3A37A3A01CFP#BA0 achieves this while maintaining low power consumption through multiple clock sources and dynamic voltage scaling.
Does the R7FS3A37A3A01CFP#BA0 support USB device and host functionality?
Yes, the R7FS3A37A3A01CFP#BA0 integrates a USB 2.0 Full-Speed (USBFS) module capable of operating in both device and host modes. It includes an on-chip transceiver and voltage regulator, supports all USB transfer types (control, bulk, interrupt, isochronous), and complies with USB Battery Charging Specification 1.2. The module provides up to 10 pipes with flexible endpoint assignment and built-in buffer memory. This allows the R7FS3A37A3A01CFP#BA0 to serve as a USB peripheral (e.g., HID device) or initiate communication with USB peripherals such as flash drives or sensors - all without requiring external PHY components.
What LCD and touch capabilities does the R7FS3A37A3A01CFP#BA0 provide?
The R7FS3A37A3A01CFP#BA0 integrates a Segment LCD Controller (SLCDC) supporting up to 8 commons × 17 segments and a Capacitive Touch Sensing Unit (CTSU) with 24 electrode channels. The SLCDC includes internal voltage boosting, 16-step contrast control, and automatic waveform generation. The CTSU provides noise-immune touch detection with software-configurable sensitivity and scanning timing. These peripherals enable direct drive of segmented displays and robust touch interfaces - eliminating external driver ICs in applications like smart meters and industrial control panels. The R7FS3A37A3A01CFP#BA0 leverages these features to reduce BOM cost and PCB area while maintaining responsiveness in electrically noisy environments.
How does the R7FS3A37A3A01CFP#BA0 ensure functional safety and security compliance?
The R7FS3A37A3A01CFP#BA0 incorporates multiple hardware-level safety and security mechanisms: ECC-protected SRAM (16 KB), dual watchdog timers (WDT and IWDT), Clock Frequency Accuracy Measurement Circuit (CAC), ADC self-diagnosis, and register write protection. Its Secure Crypto Engine 5 (SCE5) provides hardware-accelerated AES-128/256, GHASH, and True Random Number Generation. These features align with IEC 61508 SIL2 and ISO 26262 ASIL-B readiness requirements. The R7FS3A37A3A01CFP#BA0 uses these capabilities to support runtime integrity checks, secure boot, encrypted firmware updates, and tamper-resistant data storage - essential for certified industrial and automotive-adjacent deployments.
What are the supported operating voltage and temperature ranges for the R7FS3A37A3A01CFP#BA0?
The R7FS3A37A3A01CFP#BA0 operates from a single supply voltage of 1.6 V to 5.5 V, enabling direct interfacing with diverse sensor and actuator interfaces without level-shifting. Its specified operating temperature range is –40°C to +105°C, validated for the 100-pin LQFP package (PLQP0100KB-B). This extended grade supports deployment in harsh industrial enclosures, outdoor metering equipment, and under-hood automotive auxiliary modules. The R7FS3A37A3A01CFP#BA0 maintains full peripheral functionality across this range, including USB operation, ADC linearity, and LCD contrast stability - verified per Renesas' qualification testing protocol.
R7FS3A37A3A01CFP#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-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:
- 84
- 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 25x14b SAR; D/A 2x8b, 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS3A37A3A01CFP#BA0 FAQ
1.How can I place an order for R7FS3A37A3A01CFP#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS3A37A3A01CFP#BA0 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 R7FS3A37A3A01CFP#BA0 reliable?
The price and inventory of R7FS3A37A3A01CFP#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS3A37A3A01CFP#BA0 is usually 5 days.
3.What payment methods are accepted for R7FS3A37A3A01CFP#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS3A37A3A01CFP#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FS3A37A3A01CFP#BA0?
R7FS3A37A3A01CFP#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS3A37A3A01CFP#BA0 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 R7FS3A37A3A01CFP#BA0?
For technical support, including R7FS3A37A3A01CFP#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS3A37A3A01CFP#BA0 requirements.
6.How does Aetrix verify that R7FS3A37A3A01CFP#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FS3A37A3A01CFP#BA0 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 R7FS3A37A3A01CFP#BA0 meets industry standards.
7.What is the process for return or replacement of R7FS3A37A3A01CFP#BA0?
All R7FS3A37A3A01CFP#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS3A37A3A01CFP#BA0, 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 R7FS3A37A3A01CFP#BA0 part is unused and in its original packaging.
Return procedure for R7FS3A37A3A01CFP#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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