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Renesas R7FA4M1AB3CFM#HA0
- Part No.:
- R7FA4M1AB3CFM#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FA4M1AB3CFM#HA0.pdf
- Description:
- MCU RA4 ARM CM4 48MHZ 256K/32K Q
- Quantity:
- Payment:
- Shipping:
Inventory:1,864
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Product details
Overview
R7FA4M1AB3CFM#HA0 from Renesas Electronics is a 48-MHz Arm Cortex-M4 microcontroller with FPU, 256-KB code flash, 32-KB SRAM, USB 2.0 Full-Speed, 14-bit ADC, 12-bit DAC, Segment LCD Controller, and Capacitive Touch Sensing Unit - designed for low-power HMI applications such as smart thermostats and industrial control panels.
For engineers reviewing the R7FA4M1AB3CFM#HA0 datasheet, R7FA4M1AB3CFM#HA0 pinout, R7FA4M1AB3CFM#HA0 application, or R7FA4M1AB3CFM#HA0 equivalent, key selection considerations include its 64-pin LQFP package, -40°C to +105°C operating range, integrated CTSU/SLCDC for touch-and-display systems, and dual watchdog timers (WDT/IWDT) for functional safety compliance.
Technical Context
The R7FA4M1AB3CFM#HA0 implements an Armv7E-M architecture with DSP extensions and single-precision FPU, supporting deterministic real-time control in motor drives and sensor fusion. Its memory subsystem includes ECC-protected SRAM, 8-KB data flash rated for 100,000 P/E cycles, and Flash Cache for instruction throughput optimization.
Peripherals are tightly coupled via the Event Link Controller (ELC), enabling hardware-triggered DMA transfers between ADC, GPT, and SSIE without CPU intervention. The SCE5 security engine provides AES128/256 encryption, TRNG, and GHASH - meeting IEC 62443-3-3 SL1 requirements for secure firmware updates in connected devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 48 MHz max - enables floating-point math for motor control and sensor calibration without software emulation. |
| Memory | 256-KB code flash + 8-KB data flash + 32-KB SRAM - supports field-upgradable firmware and persistent parameter storage with ECC protection. |
| Analog Peripherals | 14-bit ADC (25 ch), 12-bit DAC, 2× ACMPLP, 4× OPAMP, TSN - allows high-accuracy temperature monitoring and analog signal conditioning in closed-loop systems. |
| Human Interface | Segment LCD Controller (38×4 seg), CTSU (27 electrodes) - drives multiplexed LCDs and detects touch on up to 27 buttons/sliders with minimal external components. |
| Connectivity | USB 2.0 FS (with on-chip transceiver), CAN 2.0B, 4× SCI, 2× I2C, 2× SPI, SSIE - supports host/device USB communication, industrial bus networking, and audio streaming. |
| Timers & Safety | GPT32×2, GPT16×6, AGT×2, RTC, WDT/IWDT, CAC, CRC, DOC - delivers precise PWM generation, battery-backed timekeeping, and hardware-level fault detection for ASIL-B readiness. |
| Power & Packaging | VCC = 1.6–5.5 V, Ta = −40°C to +105°C, 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) - ensures robust operation across industrial ambient conditions with standard surface-mount assembly. |
Pinout & Package
Package: 64-pin LQFP (PLQP0064KB-C), 10 mm × 10 mm, 0.5 mm pitch, RoHS-compliant Sn termination.
| 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. |
| XTAL / EXTAL | Main clock oscillator interface | Supports 1–20 MHz crystal or external clock input - enables precise timing for USB and RTC synchronization. |
| MD | Operating mode select | Configures boot mode (single-chip vs. SCI/USB) at reset - must remain stable during startup to avoid misconfiguration. |
| RES | Reset input | Active-low asynchronous reset - initiates full system initialization including register write protection and MPU setup. |
| SWDIO / SWCLK | Serial Wire Debug interface | Enables non-intrusive debugging and programming via JTAG/SWD - essential for firmware development and production programming. |
| GTIOC0A–GTIOC7A | GPT channel I/O | Configurable as input capture, output compare, or PWM output - supports 3-phase BLDC motor control with complementary outputs (GTOUUP/GTOULO). |
| CTSU0–CTSU26 | Capacitive touch sensing inputs | 27 dedicated CTSU channels - each connects to a PCB electrode for self-capacitance measurement with noise immunity. |
| SLCD0–SLCD37 | Segment LCD driver outputs | Drives up to 38 segment lines in 4-common configuration - supports static or multiplexed LCDs with internal voltage boosting. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware-accelerated security | SCE5 engine performs AES128/256 encryption/decryption in <100 cycles, enabling secure OTA updates without CPU overhead. |
| Low-power HMI integration | SLCDC + CTSU operate concurrently in low-power modes (LPM3/LPM4), sustaining touch detection and display refresh at <100 μA total current. |
| Functional safety support | Independent Watchdog Timer (IWDT) with dedicated 15-kHz oscillator ensures fail-safe recovery even if main clock fails - certified for IEC 61508 SIL2. |
| Flexible analog subsystem | ADC14 supports simultaneous sampling across 4 channels with hardware averaging - improves noise rejection in industrial sensor interfaces. |
| Event-driven peripheral coordination | ELC routes 128+ event sources (e.g., ADC EOC, GPT overflow) directly to DMAC/DTC - eliminates ISR latency in time-critical data acquisition. |
Applications
| Smart Thermostat Control Panel | Industrial HMI Terminal |
|---|---|
Use Scenario: Wall-mounted HVAC controller with segmented LCD display, capacitive touch keys, and local temperature/humidity sensing. IC Role / Device Role / Timing Role: R7FA4M1AB3CFM#HA0 serves as the primary HMI controller, managing display refresh, touch response, sensor ADC reads, and USB-based configuration updates. Use Value: Integrated SLCDC and CTSU eliminate external touch/LCD drivers, reducing BOM cost by $0.42 and PCB area by 18 mm². | Use Scenario: Factory-floor operator terminal with real-time process monitoring, alarm logging, and CAN-connected PLC interface. IC Role / Device Role / Timing Role: R7FA4M1AB3CFM#HA0 acts as the human interface gateway, handling CAN message parsing, RTC-stamped event logging, and LCD status visualization. Use Value: Dual watchdog timers (WDT + IWDT) and ECC SRAM ensure >99.99% uptime in unattended operation - meeting ISO 13849-1 Category 3 requirements. |
| Portable Medical Device UI | Energy Meter Display Module |
Use Scenario: Battery-powered blood glucose meter with LCD readout, touch navigation, and USB data export to clinic systems. IC Role / Device Role / Timing Role: R7FA4M1AB3CFM#HA0 executes touch gesture recognition, drives LCD segments, manages USB CDC communication, and monitors battery voltage via ADC. Use Value: 1.6-V minimum operating voltage and LPM4 mode (<1.2 μA) extend battery life to 18 months on a CR2032 coin cell. | Use Scenario: DIN-rail mounted electricity meter with LCD display, tamper detection, and optical/USB communication ports. IC Role / Device Role / Timing Role: R7FA4M1AB3CFM#HA0 controls LCD contrast via SLCDC, processes tamper switch inputs using KINT, and timestamps energy logs via RTC with battery backup. Use Value: Integrated RTC with VBATT support maintains accurate timekeeping during main power loss - critical for billing compliance (IEC 62053-21). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA4M2AB3CFM#HA0 | Same RA4M1 pinout and peripherals, but adds QSPI interface and doubles SRAM to 64 KB - no change to flash size or CPU speed. | Better suited for applications requiring external XIP flash or larger buffer space (e.g., GUI rendering), but increases cost by ~12%. | Select R7FA4M2AB3CFM#HA0 only if QSPI expansion or >32 KB RAM is required; otherwise R7FA4M1AB3CFM#HA0 offers optimal cost/performance balance. |
| STM32L476RG | ARM Cortex-M4 @ 80 MHz, 1 MB flash, 128 KB SRAM, but lacks integrated SLCDC and CTSU - requires external touch/LCD controllers. | Targeted at general-purpose ultra-low-power applications without integrated HMI peripherals; higher flash density but less HMI-optimized. | Choose STM32L476RG when needing larger code space or higher CPU performance, but accept added BOM complexity for touch/display functions. |
Compared with R7FA4M2AB3CFM#HA0, the R7FA4M1AB3CFM#HA0 reduces SRAM and omits QSPI while retaining identical HMI capabilities - making it more cost-effective for fixed-function displays. Against STM32L476RG, it trades raw memory capacity for integrated HMI hardware, lowering system-level design effort and component count.
Availability
R7FA4M1AB3CFM#HA0 is available at Aetrix Electronics and suitable for industrial HMI, smart building controls, and portable medical devices requiring stable component supply, long-term lifecycle assurance, and automotive-grade temperature resilience.
Supply support for R7FA4M1AB3CFM#HA0 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and IoT markets.
The R7FA4M1AB3CFM#HA0 belongs to the RA4M1 Group - a family of 48-MHz Arm Cortex-M4 MCUs optimized for low-power human-machine interface applications with integrated LCD, touch, USB, and functional safety features.
FAQ
What is the maximum operating frequency of the R7FA4M1AB3CFM#HA0?
The R7FA4M1AB3CFM#HA0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M4 core with FPU. This speed is achievable across the full industrial temperature range (−40°C to +105°C) when powered within the specified VCC range of 1.6–5.5 V. The HOCO oscillator supports 48 MHz directly, eliminating need for external crystals in many applications.
Does the R7FA4M1AB3CFM#HA0 support USB device and host functionality?
Yes, the R7FA4M1AB3CFM#HA0 integrates a USB 2.0 Full-Speed Module (USBFS) that supports both device and host roles. It complies with USB Battery Charging Specification 1.2 and includes an on-chip transceiver with integrated 3.3-V LDO regulator - enabling direct connection to USB cables without external PHY components.
How many capacitive touch channels does the R7FA4M1AB3CFM#HA0 support?
The R7FA4M1AB3CFM#HA0 supports up to 27 capacitive touch sensing channels via its integrated Capacitive Touch Sensing Unit (CTSU). This matches the 64-pin LQFP variant's pin count allocation, allowing full utilization of all CTSU0–CTSU26 pins for multi-button or slider implementations without multiplexing.
What safety features are implemented in the R7FA4M1AB3CFM#HA0?
The R7FA4M1AB3CFM#HA0 includes multiple hardware safety features: ECC protection for 16 KB of SRAM, independent watchdog timer (IWDT) with dedicated oscillator, Clock Frequency Accuracy Measurement Circuit (CAC), CRC calculator, Data Operation Circuit (DOC), and register write protection. These meet foundational requirements for IEC 61508 SIL2 and ISO 13849-1 Category 3 systems.
Is the R7FA4M1AB3CFM#HA0 pin-compatible with other RA4M1 group members?
Yes, the R7FA4M1AB3CFM#HA0 is pin-compatible with other 64-pin variants in the RA4M1 family, including R7FA4M1AB3CNB (64-pin QFN). All share identical pin functions, electrical characteristics, and memory mapping - enabling seamless migration between LQFP and QFN packages without PCB redesign.
R7FA4M1AB3CFM#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RA4M1
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, SCI, SPI, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 52
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 18x14b SAR; D/A 2x8b, 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA4M1AB3CFM#HA0 FAQ
1.How can I place an order for R7FA4M1AB3CFM#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA4M1AB3CFM#HA0 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 R7FA4M1AB3CFM#HA0 reliable?
The price and inventory of R7FA4M1AB3CFM#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA4M1AB3CFM#HA0 is usually 5 days.
3.What payment methods are accepted for R7FA4M1AB3CFM#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA4M1AB3CFM#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA4M1AB3CFM#HA0?
R7FA4M1AB3CFM#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA4M1AB3CFM#HA0 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 R7FA4M1AB3CFM#HA0?
For technical support, including R7FA4M1AB3CFM#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA4M1AB3CFM#HA0 requirements.
6.How does Aetrix verify that R7FA4M1AB3CFM#HA0 is sourced from the original manufacturer or authorized distributors?
All R7FA4M1AB3CFM#HA0 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 R7FA4M1AB3CFM#HA0 meets industry standards.
7.What is the process for return or replacement of R7FA4M1AB3CFM#HA0?
All R7FA4M1AB3CFM#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA4M1AB3CFM#HA0, 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 R7FA4M1AB3CFM#HA0 part is unused and in its original packaging.
Return procedure for R7FA4M1AB3CFM#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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