ATSAM4E16EA-AN
ATSAM4E16EA-AN - 120MHz Cortex-M4 1MB MCU | Microchip
The Microchip Technology ATSAM4E16EA-AN is a 32-bit ARM Cortex-M4 microcontroller operating at 120 MHz, with 1 MB of internal Flash memory, in a 144-lead LQFP package measuring 20 mm by 20 mm. It belongs to the SAM4E microcontroller family and includes a floating-point unit for digital signal-processing and control workloads. The device combines a high-data-bandwidth processor architecture with substantial embedded Flash capacity, making it suitable for industrial equipment, communications equipment, human-machine interfaces, and embedded control systems.
A microcontroller is a programmable semiconductor that integrates a processor core, memory, peripherals, and interface logic on one integrated circuit. The ARM Cortex-M4 processor core is designed for efficient embedded execution and supports floating-point instructions that accelerate calculations commonly found in control loops, signal processing, and data transformation. Within the product hierarchy, this ATSAM4E16EA-AN is a microcontroller, embedded processor, semiconductor, and programmable control device.
Three headline attributes define the device: a maximum processor frequency of 120 MHz, 1 MB of Flash organized as 1M by 8 bits, and a 144-LQFP surface-mount package. The processor architecture provides the compute capacity needed for responsive real-time control, while the 1 MB Flash allocation supports embedded firmware, configuration data, and application code. The 20 mm by 20 mm LQFP package provides exposed leads for PCB assembly and inspection.
Microchip describes the SAM4E16E family as featuring a floating-point unit and a high-data-bandwidth architecture. These characteristics make the processor core useful in designs that combine supervisory control with math-intensive routines. The 32-bit Cortex-M4 architecture provides a modern embedded baseline, while the 1 MB Flash capacity reduces the need to rely on external program storage for moderate firmware images.
Typical applications include industrial automation controllers, Ethernet-connected equipment, operator panels, data-acquisition systems, medical-instrument control boards, and embedded gateway products. In each case, the 120 MHz Cortex-M4 core supplies real-time processing capability, the Flash memory holds application firmware, and the 144-LQFP package supports conventional surface-mount assembly. Automotive or safety-critical use requires project-specific qualification review before deployment.
Design should begin with the manufacturer's pin description table and electrical characteristics because package dimensions alone do not define the board interface. Preserve the recommended decoupling and external-component layout, confirm signal levels and peripheral assignments against the device documentation, and verify PCB thermal performance at the intended ambient temperature. Revision planning is also important because Microchip recommends Revision B for new prototype and production designs.
This page organizes the verified product identity, package information, sourcing answers, design considerations, and compatibility boundaries for ATSAM4E16EA-AN. It also distinguishes confirmed electrical and packaging facts from characteristics that require engineering review before schematic release, PCB layout, firmware migration, or production qualification.
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