R7FA4M1AB3CFM
RA4M1 Cortex-M4 microcontroller at 48 MHz with 256 KB flash, an LCD controller and capacitive touch in a 64-pin LQFP.
The R7FA4M1AB3CFM is a Renesas RA4M1 microcontroller with an Arm Cortex-M4 core running at up to 48 MHz, 256 KB of code flash and a segment LCD controller and capacitive touch sensing unit, in a 64-pin LQFP package. It is designed for products with a display and a touch interface, such as appliances, instruments and building controls, where a small, low-power microcontroller must drive a segment display and read touch buttons without external controllers. The Cortex-M4 core includes a floating-point unit and DSP instructions, which covers modest signal processing alongside the HMI function, and the device includes the serial interfaces and converters that such products need. Because the RA family shares the Flexible Software Package and a common toolchain, code and drivers move between parts with modest change, and a product line can scale from this device to a higher-performance RA part without rewriting the application. The part is a practical choice for cost-sensitive HMI products. Every device is factory-traceable and ships with an import declaration, a certificate of origin and RoHS documentation. BeiLuo holds this part in regional stock and our FAE team supports display, touch and peripheral design.
FAE Professional Review
This is the RA part we recommend for a display and touch product that does not need high performance. The integrated LCD controller and capacitive touch remove the external controllers that would otherwise be needed, which simplifies the board and the bill of materials. Plan the touch electrode layout and the display multiplexing early, because those are the areas that decide whether the interface works well in the product.
| Parameter | Value |
|---|---|
| Core | Arm Cortex-M4 |
| Frequency | 48 MHz |
| Flash | 256 KB |
| Package | LQFP64 |
| Features | LCD controller, cap touch, USB |
Application Circuits
Appliance and instrument HMI
Reference circuits and application schematics for Appliance and instrument HMI are available from our FAE team.
Touch button and slider interfaces
Reference circuits and application schematics for Touch button and slider interfaces are available from our FAE team.
Building and access controls
Reference circuits and application schematics for Building and access controls are available from our FAE team.
Consumer and IoT products
Reference circuits and application schematics for Consumer and IoT products are available from our FAE team.
Industrial control panels
Reference circuits and application schematics for Industrial control panels are available from our FAE team.
Need a reference schematic or design review? Our FAE engineers can share verified circuits and layout guidance for this part.
Related Documents
Alternative Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| R7FA6M3AH3CFC | LQFP176 | RA6M3 with higher performance and a TFT controller | View |
Complementary Part Numbers
Recommended Complementary Products
Frequently Asked Questions
Does it support touch and a display together?
Yes. It includes a segment LCD controller and a capacitive touch sensing unit, so a product can drive a display and read touch buttons with one device.
Confirm the segment and touch channel counts against your design.
Is it a good fit for a cost-sensitive product?
Yes. The device covers a display and touch product with modest compute at a low cost, and the shared software package keeps development efficient.
Scale to the RA6M3 when more performance is needed.