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ATSAM4CMS32CB-AUR - Dual-Core 120MHz Metering MCU 2MB | Microchip
ATSAM4CMS32CB-AUR

ATSAM4CMS32CB-AUR - Dual-Core 120MHz Metering MCU 2MB | Microchip

The Microchip Technology ATSAM4CMS32CB-AUR is a 32-bit dual-core ARM Cortex-M4/M4F metering system-on-chip microcontroller running at 120 MHz, with 2 MB (2M x 8) of embedded Flash and 304 KB of SRAM, housed in a 100-pin LQFP (14x14 mm) surface-mount package. It operates from a 1.62 V to 3.6 V supply across an industrial -40C to +85C temperature range. A metering MCU (metering SoC) is a class of microcontroller that integrates dedicated signal-processing and metrology resources to measure electrical energy with high accuracy. In the power-management hierarchy, it sits between general-purpose MCUs and dedicated energy-metering ASICs, combining a general-purpose CPU core with a metrology-oriented co-processing architecture in one chip. Key features include the unique dual ARM Cortex-M4 architecture, which partitions signal processing from application and communications firmware, 2 MB Flash with on-chip cache for extended program storage, class 0.2 metrology accuracy over a 3000:1 dynamic range, and integrated cryptographic hardware for secure data handling. The 10-bit ADC and 57 GPIOs support direct sensing front-ends and rich peripheral connectivity. Technically, the SAM4CM family is a seamless extension of Atmel's proven SAM4 line: one core runs metrology DSP routines while the second runs protocol stacks and application logic, with parallel memory expansion for program and data growth. Partitioned firmware domains reduce real-time contention and simplify certification of metering algorithms. Typical applications include residential and single-phase energy meters, industrial sub-metering, smart-grid nodes, and power-quality monitoring equipment, where 0.2-class accuracy across a wide dynamic range is mandatory. Design consideration: budget the 120 MHz dual-core clock tree and decouple the 1.62-3.6 V rail carefully; metrology accuracy depends on a clean analog supply for the ADC front-end. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAM4CMS4CB-AU - Dual-Core 120MHz MCU 256KB | Microchip
ATSAM4CMS4CB-AU

ATSAM4CMS4CB-AU - Dual-Core 120MHz MCU 256KB | Microchip

The Microchip Technology ATSAM4CMS4CB-AU is a 32-bit dual-core ARM Cortex-M4/M4F microcontroller running at 120 MHz with 256KB of embedded Flash and 128KB of SRAM, housed in a 100-pin LQFP (14x14 mm) tray package from the SAM4CM metrology family. A microcontroller unit (MCU) integrates a processor core, program memory, data memory, and peripheral set on a single chip, forming the compute layer of an embedded system. The SAM4CM series extends Microchip's (formerly Atmel's) SAM4C family into the smart metering domain, adding a metrology analog front end (AFE) and hardware cryptography to the general-purpose Cortex-M4 MCU architecture for single-chip energy measurement platforms. Key features of the ATSAM4CMS4CB include the dual-core Cortex-M4/M4F architecture, where one core handles application firmware and the second core can be dedicated to metrology or security tasks, delivering deterministic real-time behavior at up to 120 MHz. The integrated crypto engine accelerates authentication and encryption for smart-grid communication stacks, while the built-in single-phase, 4-channel metrology AFE supports residential and industrial metering up to class 0.2 accuracy over a dynamic range of 3000:1, according to Microchip's product documentation. Technical depth: the SAM4CM combines a high-performance RISC pipeline with FPU support (Cortex-M4F), RAM totaling 128KB, and a peripheral set suited to metering and communications. The device operates from a 1.2V core domain with integrated regulators, simplifying power-tree design in single-phase meters. Typical applications include residential and single-phase electricity meters, smart-grid data concentrators, and secure industrial metrology nodes, where the combination of metrology AFE, cryptography, and dual-core processing eliminates a separate metrology IC. Design consideration: budget Flash and RAM early - the 256KB Flash / 128KB RAM of the CB density variant should be verified against bootloader plus application footprint before PCB commitment. This page synthesizes distributor listings, family-level cross-reference data, and practical selection notes beyond what any single datasheet page provides.

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ATSAM4CMS4CB-AUR - Dual Cortex-M4 120MHz MCU | Microchip
ATSAM4CMS4CB-AUR

ATSAM4CMS4CB-AUR - Dual Cortex-M4 120MHz MCU | Microchip

The Microchip Technology ATSAM4CMS4CB-AUR is a 32-bit dual-core ARM Cortex-M4/M4F microcontroller running at 120 MHz, with 256 KB of embedded FLASH and 128 KB of RAM, housed in a 100-pin LQFP (14x14 mm) surface-mount package. A microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals onto one die, sitting at the device level of the embedded-systems hierarchy (MCU -> SoC -> embedded system). The SAM4CM family extends Atmel/Microchip's SAM4C family of ARM Cortex-M4 microcontrollers, purpose-built for smart energy metering where computation, communication, and security must coexist on one chip. Key features include a unique dual-core ARM Cortex-M4/M4F architecture with FPU that lets metrology signal processing run independently from communications and application firmware, metrology-grade front-end support for residential and single-phase metering at up to class 0.2 accuracy over a 3000:1 dynamic range, and hardware cryptographic acceleration for smart-grid security. Connectivity peripherals include EBI/EMI, I2C, IrDA, SPI, and UART/USART, and the EBI/EMI interface allows extension of program and data memory via parallel memories. Technically, the dual-core partitioning enables the metering engine to sample and compute energy quantities with deterministic timing while the second core handles protocols such as DLMS/COSEM and wireless communication, without mutual interference. The Cortex-M4F hardware FPU accelerates FFT and RMS calculations essential to metrology. Typical applications include single-phase residential electricity meters, industrial sub-metering, smart-grid gateways, and secure data concentrators. Design consideration: because the device targets metrology accuracy, PCB layout must separate the analog front-end ground from switching noise sources, and the flash size (256 KB) should be checked against combined application plus bootloader footprint. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAM4CMS4CC-AU - Dual-Core 120MHz MCU 256KB | Microchip
ATSAM4CMS4CC-AU

ATSAM4CMS4CC-AU - Dual-Core 120MHz MCU 256KB | Microchip

The Microchip Technology ATSAM4CMS4CC-AU is a 32-bit dual-core ARM Cortex-M4 microcontroller (metrology SoC) running at 120 MHz with 256 KB embedded flash, crypto acceleration, and a 100-pin LQFP (14x14 mm) package. A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals on one die, sitting within the broader hierarchy of semiconductor devices under embedded processors and system-on-chip (SoC) solutions. The SAM4CM subfamily extends Microchip's SAM4C ARM Cortex-M4 family by adding metrology-specific signal processing hardware aimed at energy metering. Key features of the ATSAM4CMS4CC-AU include its unique dual-core ARM Cortex-M4 architecture, which separates signal processing firmware from application and communications firmware in independent memory partitions, improving security and real-time determinism. It delivers up to class 0.2 metrology accuracy over a dynamic range of 3000:1, integrates a cryptographic accelerator for smart-grid security, and operates over the full industrial temperature range. Technically, the SAM4CM SoC couples two 120 MHz Cortex-M4 processors with on-chip cache, embedded flash (256 KB on this density grade), SRAM, and a rich peripheral set. The parallel memory bus capability allows program and data memory extension beyond the embedded flash, supporting larger metering application images. Typical applications include residential and single-phase electricity meters, smart-grid communication concentrators, industrial energy monitoring, and secure data-concentrator nodes. The metrology acceleration and crypto engine make this MCU particularly well-suited to tariff metering with encrypted telemetry. Design consideration: verify power-supply sequencing and use the manufacturer metrology reference designs to achieve class 0.2 accuracy; PCB layout of analog metering front ends directly affects dynamic range. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAM4CMS8CA-AU - Dual-Core 120MHz MCU 512KB Flash | Microchip
ATSAM4CMS8CA-AU

ATSAM4CMS8CA-AU - Dual-Core 120MHz MCU 512KB Flash | Microchip

The Microchip Technology ATSAM4CMS8CA-AU is a 32-bit dual-core ARM Cortex-M4/M4F microcontroller from the SAM4CM series, operating at 120 MHz with 512KB of embedded Flash memory and 128KB of SRAM, housed in a 100-pin LQFP (14x14 mm) surface-mount package supplied in trays. A microcontroller (MCU) integrates a processor core, program memory, data memory, and peripheral functions onto a single silicon die, serving as the computational heart of an embedded system. Within the power-management hierarchy, the ATSAM4CM family sits in Microchip's high-performance 32-bit MCU portfolio, above the ARM Cortex-M3 based SAM3 and SAM4S families, and is one of the few mainstream MCUs to offer a true dual-core Cortex-M4 configuration for partitioned safety or functional-separation designs. Key features include a dual-core architecture (one Cortex-M4 with floating-point unit and one Cortex-M4F companion core) for concurrent workloads, 512KB (512K x 8) of Flash program memory, and a rich peripheral set typical of the SAM4CM series. The device operates from a 1.2V core / 3.3V I-O supply domain per FindIC specification data, and is graded for industrial temperature environments. Technically, the dual Cortex-M4 arrangement allows developers to run a real-time control task on one core while the second core handles communications, user interface, or safety-monitoring firmware, reducing the need for external co-processors. The ARM Cortex-M4 with FPU executes DSP instructions natively, supporting motor control, digital filtering, and sensor-fusion workloads at 120 MHz. Typical applications include industrial automation controllers, motor drives, battery-management and power-conversion systems, and communication gateways where deterministic dual-core partitioning is valuable. When designing with this device, verify the core and I/O supply sequencing and allocate Flash headroom for dual-core firmware images, since the 512KB array is shared across both cores. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, adding selection value for engineers comparing SAM4CM options.

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ATSAM4CMS8CA-AUR - Dual-Core 120MHz MCU 512KB Flash | Microchip
ATSAM4CMS8CA-AUR

ATSAM4CMS8CA-AUR - Dual-Core 120MHz MCU 512KB Flash | Microchip

The Microchip Technology ATSAM4CMS8CA-AUR is a 32-bit dual-core ARM Cortex-M4/M4F microcontroller running at 120 MHz with 512 KB (512K x 8) Flash memory and 128 KB SRAM, housed in a 100-pin LQFP (14 x 14 mm) surface-mount package. A microcontroller unit (MCU) is a single-chip embedded computer that integrates a processor core, program memory, data memory, and peripheral functions such as timers, serial interfaces, and analog converters. MCUs sit at the heart of the embedded systems hierarchy: microcontroller -> embedded processor -> system-on-chip -> semiconductor integrated circuit, and are the dominant computing element in industrial, automotive, and IoT devices. Key differentiating features of the ATSAM4CMS8CA-AUR include its dual-core architecture, which allows one Cortex-M4F core to run the main application while the second core handles communication or safety tasks, a supply voltage range of 1.62V to 3.6V for battery-friendly operation, and an industrial temperature grade suitable for harsh environments. The 120 MHz core speed with single-cycle floating-point hardware (M4F) supports DSP-class workloads such as motor control and digital filtering. Technically, the SAM4CM series is built on the ARMv7E-M architecture with Thumb-2 instruction set support. The dual-core configuration provides deterministic task partitioning, and the large 512 KB Flash permits field-updatable firmware with dual-bank-style boot strategies, while 128 KB SRAM supports substantial buffering for communication stacks and real-time data acquisition. Typical applications include industrial motor control and factory automation, low-power portable and battery-operated devices, and networked sensor nodes using the integrated serial peripherals. The industrial temperature grade and RoHS-compliant LQFP package fit demanding embedded designs. A key design consideration: the 1.62V to 3.6V supply range permits direct Li-ion or 3.3V rail operation, but PCB decoupling and power-rail sequencing per the manufacturer datasheet should be followed carefully. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAM4CMS8CC-AU - Dual-Core 120MHz Metering MCU | Microchip
ATSAM4CMS8CC-AU

ATSAM4CMS8CC-AU - Dual-Core 120MHz Metering MCU | Microchip

The Microchip Technology ATSAM4CMS8CC-AU is a 32-bit dual-core ARM Cortex-M4/M4F microcontroller (SAM4CM series) running at 120 MHz with 512 KB (512K x 8) embedded FLASH, housed in a 100-pin LQFP (14x14 mm) surface-mount package. A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals on one die, forming the lowest tier of the embedded processing hierarchy (MCU -> embedded processor -> system-on-chip -> semiconductor). The SAM4CM extends this concept into a metering system-on-chip (SoC), purpose-built for energy measurement where signal processing and application firmware must run independently and concurrently. Key features include the unique dual ARM Cortex-M4 architecture, which allows metrology signal-processing code and application/communications firmware to execute in separate, independent partitions, plus hardware cryptographic acceleration, industrial temperature range operation, and on-chip cache supporting extended program and data memory via parallel interfaces. According to Microchip, the SAM4CMS8 achieves class 0.2 metrology accuracy over a dynamic range of 3000:1 for residential and single-phase metering. Technically, the device is a seamless extension of Atmel's SAM4 family and the SAM4C family, pairing the Cortex-M4 with its FPU (M4F) on both cores for DSP-heavy metering computations. Embedded flash of 512 KB and generous SRAM support complex multi-phase firmware images, while the crypto engine protects billing data and firmware IP in smart-grid deployments. Typical applications include residential electricity meters, single-phase energy meters requiring class 0.2 accuracy, and industrial power-monitoring equipment where dual-core partitioning separates safety-critical metrology from networked communications stacks. When designing with this part, plan flash partitioning early so the metrology core and application core have deterministic code space, and verify the 100-LQFP thermal footprint against your power budget at 120 MHz. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAM4CMS8CC-AUR - Dual-Core Cortex-M4 Metering MCU | Microchip
ATSAM4CMS8CC-AUR

ATSAM4CMS8CC-AUR - Dual-Core Cortex-M4 Metering MCU | Microchip

The Microchip Technology ATSAM4CMS8CC-AUR is a 32-bit dual-core ARM Cortex-M4 microcontroller for metering systems-on-chip, running at up to 120 MHz with 512 KB embedded Flash and 128 KB SRAM, housed in a 100-pin LQFP (14x14 mm) surface-mount package. Per DigiKey, it integrates a hardware cryptographic engine and targets residential and single-phase energy metering at up to class 0.2 metrology accuracy over a 3000:1 dynamic range. A microcontroller (MCU) is a complete computing system on a single chip, combining a processor core, memory, and peripherals. The SAM4CM series belongs to the metering SoC tier of the broader ARM Cortex-M microcontroller family, which spans entry-level Cortex-M0+ parts up to high-performance Cortex-M7 devices. Metering SoCs add metrology-grade analog front ends and security features not found in general-purpose MCUs. Key features include dual independent Cortex-M4 cores that allow one processor to run metrology algorithms while the other handles application logic, communication, and UI tasks, improving real-time determinism. The hardware crypto engine accelerates AES-class encryption for secure data logging and anti-tamper designs required in utility infrastructure. The industrial temperature grade (-40C to +85C) and RoHS-compliant green LQFP package support harsh outdoor meter environments. Architecturally, the ATSAM4CMS8 extends Atmel/Microchip's SAM4 family, sharing peripherals, toolchains, and software with single-core SAM4S devices, which simplifies migration. The second core offloads fixed-point DSP metrology computations such as RMS, power, and energy accumulation, leaving the primary core free for protocol stacks like DLMS/COSEM. Typical applications include single-phase residential smart meters, industrial sub-metering panels, and power-quality monitoring nodes where accuracy class 0.2 and secure firmware are mandated. Its Flash density also supports over-the-air firmware update images in the field. Design consideration: dual-core resource arbitration must be planned early - use the shared SRAM with hardware semaphores and reserve the metrology core's interrupt budget, as documented in the Microchip SAM4CM family datasheet. This page synthesizes distributor pricing from five sources, drop-in family alternatives, and practical design guidance not found in the manufacturer datasheet alone. Pricing as of 2026-09-20.

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ATSAM4CP16B-AHU-Y - Dual-Core Cortex-M4 120MHz MCU | Microchip
ATSAM4CP16B-AHU-Y

ATSAM4CP16B-AHU-Y - Dual-Core Cortex-M4 120MHz MCU | Microchip

The Microchip ATSAM4CP16B-AHU-Y is a 32-bit dual-core ARM Cortex-M4 microcontroller IC running at 120 MHz with 1 MB (1M x 8) FLASH and 152 KB SRAM, housed in a 176-pin LQFP (24 x 24 mm) surface-mount package. An MCU (microcontroller unit) is a single integrated circuit that combines a processor core, memory, and peripherals into one chip, forming the lowest level of the embedded computing hierarchy: microcontroller -> embedded processor -> semiconductor IC. The SAM4CP series belongs to Microchip's (formerly Atmel) SAM4 ARM Cortex-M4 family and is purpose-built for Power Line Communication (PLC) applications. Each package integrates two independently programmable Cortex-M4 cores plus a dedicated PLC modem supporting PRIME v1.3 and v1.4, making it a complete System-on-Chip solution for smart-grid and metering infrastructure. Key differentiating features include the dual-core 120 MHz Cortex-M4/M4F architecture, 1 MB embedded Flash, a PLC modem capable of baud rates from 5.4 kbps up to 128 kbps with independently selectable transmission bands up to 472 kHz, and an industrial operating temperature range. The supply voltage spans 1.08V to 3.6V, enabling battery-friendly and 3.3V rail designs. Technically, the two Cortex-M4 cores partition application duties: one core typically runs the PRIME protocol stack and network management while the second handles application logic such as metering computation and display control, reducing real-time contention versus single-core solutions. The integrated S-FSK (Spread Frequency Shift Keying) PHY removes the need for an external PLC modem chipset. Typical applications include smart electricity meters, PRIME-compliant data concentrators, streetlighting control nodes, and other smart-grid communication endpoints that require certified PLC connectivity over low-voltage or medium-voltage power lines. Design consideration: the 1.08V minimum supply must be respected during brownout; use the device's supervision features and verify the analog front-end matching network for the target PLC band to maximize coupling efficiency on the power line. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAM4CP16C-AHU-Y - Dual-Core 120MHz MCU 1MB Flash | Microchip
ATSAM4CP16C-AHU-Y

ATSAM4CP16C-AHU-Y - Dual-Core 120MHz MCU 1MB Flash | Microchip

The Microchip ATSAM4CP16C-AHU-Y is a 32-bit dual-core ARM Cortex-M4 microcontroller operating at up to 120 MHz per core, with 1 MB of embedded Flash, 128 KB of SRAM, and an integrated G3-PLC (Power Line Communication) modem, housed in a 176-pin LQFP (24x24 mm) package. A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and peripherals to execute embedded control tasks. Within the system hierarchy, the ATSAM4CP16C sits in the smart-energy MCU class: microcontroller -> 32-bit ARM MCU -> ARM Cortex-M4 family -> Atmel SMART energy portfolio. Dual-core MCUs partition safety-critical or real-time workloads (such as PLC modem handling) from application logic, improving determinism and security in one package. Key features include two Cortex-M4/M4F cores each running at 120 MHz with FPU, on-chip cache for each core, an advanced cryptographic engine for secure communication, and a G3-PLC modem supporting CENELEC, ARIB, and FCC profiles as defined by the G3-PLC specification. The supply range spans 1.08V to 3.6V, and the industrial temperature grade covers -40C to +85C (IND TEMP A). Technically, the stacked-die construction integrates the SAM4C MCU die with the PLC modem circuitry, delivering a complete G3-PLC node on a single footprint. The cryptographic engine accelerates AES-based authentication and encryption required by modern smart-grid protocols, offloading both cores. Typical applications include smart electricity meters, streetlighting controllers, solar inverter monitoring, and home-area-network gateways where power-line communication replaces dedicated wiring. When designing, budget the dual-core flash allocation carefully - both cores share the 1 MB Flash, and modem firmware residency affects application space. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAM4E16CA-AN - 120MHz Cortex-M4, 1MB Flash MCU | Microchip
ATSAM4E16CA-AN

ATSAM4E16CA-AN - 120MHz Cortex-M4, 1MB Flash MCU | Microchip

The Microchip Technology ATSAM4E16CA-AN is a 32-bit ARM Cortex-M4 microcontroller with a floating point unit, running at up to 120 MHz, with 1 MB of embedded Flash and 128 KB of SRAM, housed in a 100-pin LQFP (14x14 mm) package. A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals on one die, forming the lowest level of the embedded-system hierarchy: MCU -> embedded processor -> system-on-chip -> computing platform. The SAM4E series belongs to Microchip's SMART ARM-based Flash MCU family, positioned for connected industrial and smart-energy applications that need both DSP-class math performance and Ethernet connectivity in a single chip. Key features of the ATSAM4E16CA-AN include the ARM Cortex-M4 core with 2 KB instruction cache, a hardware Floating Point Unit (FPU) and DSP instructions, a Memory Protection Unit (MPU), Thumb-2 instruction set support, and a supply range of 1.62 V to 3.6 V. The SAM4E series integrates an Ethernet MAC, making it distinct from the otherwise similar SAM4C series, which targets smart energy metering without Ethernet. Architecturally, the Cortex-M4 achieves high data bandwidth through its Harvard bus structure and the 2 KB cache, while the FPU executes single-precision floating-point math in hardware - valuable for control loops, protocol stacks, and measurement algorithms that would otherwise burden the CPU with software emulation. Typical applications include industrial control and automation nodes, smart energy metering gateways, building control, and networked sensors that use the on-chip Ethernet MAC for fieldbus or IoT backhaul. When designing with this device, plan for decoupling of the multiple supply domains (1.2 V core domain is internally regulated; 2.5 V/3.3 V I/O and analog domains per the datasheet) and verify the 100-LQFP (14x14) footprint, because suffix variants differ in packing rather than footprint. This page synthesizes distributor pricing, same-family drop-in alternatives, and design notes not consolidated in the manufacturer datasheet.

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ATSAM4E16CA-AU - 120MHz Cortex-M4 MCU 1MB Flash | Microchip
ATSAM4E16CA-AU

ATSAM4E16CA-AU - 120MHz Cortex-M4 MCU 1MB Flash | Microchip

The Microchip Technology ATSAM4E16CA-AU is a 32-bit ARM Cortex-M4 microcontroller running at up to 120 MHz with 1 MB (1024 KB) embedded Flash, 128 KB SRAM and a 2 KB cache, housed in a 100-pin LQFP (14x14 mm) surface-mount package. A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals on one die, sitting at the lowest level of the embedded-systems hierarchy: MCU -> embedded processor -> system-on-chip -> computing platform. The SAM4E family belongs to Microchip (formerly Atmel) ARM-based MCU portfolio and is positioned for connectivity-rich, computation-oriented embedded designs. Key features of the ATSAM4E16CA-AU include the Cortex-M4 core with DSP instructions, a hardware Floating Point Unit (FPU), Thumb-2 instruction support, and a Memory Protection Unit (MPU). The 2 KB cache and high-bandwidth bus architecture sustain near-zero-wait-state execution from Flash at the full 120 MHz clock rate. Industrial temperature support (-40C to +85C) and RoHS-compliant green packaging suit harsh-environment deployments. Technically, the SAM4E series differentiates itself with advanced connectivity peripherals and Ethernet support within the family, paired with the FPU-accelerated core for control loops, signal processing, and protocol stacks. Multiple low-power modes, a rich clock tree with PLLs, DMA channels, and a broad peripheral set (USART, SPI, TWI/I2C, ADC, timers, PWM) reduce external component count in typical designs. Typical applications include industrial automation and control nodes, networked sensors and gateways leveraging Ethernet-class connectivity, motor control and power conversion thanks to the FPU and DSP instructions, and embedded systems needing substantial 1 MB Flash for large firmware, file systems, or OTA update banks. Design consideration: the -AU suffix denotes the 100-LQFP (14x14) tape-and-reel green industrial part; footprint-compatible family members with smaller Flash (e.g., ATSAM4E8CA-AU) enable BOM cost scaling without PCB redesign. This page synthesizes distributor pricing, same-package drop-in alternatives, design notes, and application guidance not consolidated in the manufacturer datasheet.

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ATSAM4E16CA-AUR - 120MHz Cortex-M4 1MB Flash MCU | Microchip
ATSAM4E16CA-AUR

ATSAM4E16CA-AUR - 120MHz Cortex-M4 1MB Flash MCU | Microchip

The Microchip Technology ATSAM4E16CA-AUR is a 32-bit ARM Cortex-M4 microcontroller running at up to 120 MHz with 1 MB (1M x 8) embedded Flash, 128 KB SRAM, and a 100-pin LQFP (14x14 mm) package. It integrates a floating point unit (FPU), DSP instructions, Thumb-2 instruction set, a 2 KB instruction cache, a Memory Protection Unit (MPU), and a 10/100 Mbps Ethernet MAC. A microcontroller (MCU) is a complete computing system on a single chip, combining a processor core, program memory, data memory, and a rich set of peripherals. The SAM4E family sits within Microchip's ARM-based MCU hierarchy: Cortex-M4 core -> SAM4E series -> ARM MCU portfolio -> embedded processing, serving as the central controller in a larger system of sensors, actuators, and communication interfaces. Key features include the 120 MHz Cortex-M4 with FPU for math-intensive control loops, 1 MB Flash for large code images with in-field update capability, dual 12-bit ADCs (16 channels) and dual 12-bit DACs (2 channels), and an integrated Ethernet controller that eliminates an external MAC. Peripherals such as USB, USARTs, SPI, and a PWM controller support connectivity and motion control applications. Technically, the SAM4E16C uses a high data bandwidth multi-layer bus architecture with the 2 KB cache improving flash execution efficiency at 120 MHz. Supply voltage spans 1.62 V to 3.6 V, with the core powered internally from 1.2 V per the datasheet, and an internal oscillator simplifies clocking. Typical applications include industrial networking nodes, Ethernet-connected IoT gateways, motor control and power conversion, and building automation controllers. A key design consideration: the ADC reference and analog supply require clean routing on the VDDA pin, and full 120 MHz operation should be validated across the 1.62 V to 3.6 V supply range per Microchip's electrical characteristics. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAM4E16CA-CU - 120MHz Cortex-M4 1MB Flash MCU | Microchip
ATSAM4E16CA-CU

ATSAM4E16CA-CU - 120MHz Cortex-M4 1MB Flash MCU | Microchip

The Microchip Technology ATSAM4E16CA-CU is a 32-bit ARM Cortex-M4 flash microcontroller running at up to 120 MHz with 1 MB (1M x 8) of embedded flash memory, 128 KB of SRAM, and a 100-ball TFBGA (9x9 mm) package. A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and peripherals into one chip, forming the heart of embedded systems. The SAM4E family sits within Microchip's SMART ARM-based MCU portfolio, positioned above the Cortex-M3 based SAM3/SAM4N lines by adding a floating point unit (FPU), DSP instructions, and high-bandwidth peripherals such as an Ethernet MAC for industrial connectivity applications. Key features include the ARM Cortex-M4 core with a 2 KB instruction cache operating at up to 120 MHz, hardware FPU and Thumb-2 instruction support for efficient math-intensive firmware, a Memory Protection Unit (MPU) for robust multi-task software, and a peripheral set spanning UART/USART, SPI, TWI (I2C), PWM, ADC, and Ethernet connectivity. The 1 MB flash supports in-system programming, while the high data bandwidth architecture suits control loops and protocol stacks simultaneously. Technically, the device integrates the Cortex-M4 with DSP extensions, enabling single-cycle MAC operations useful for digital filtering and motor control algorithms. The 2 KB cache reduces flash wait-state penalties at 120 MHz, and the MPU allows privileged/unprivileged code partitioning for safety-oriented designs. Supply operation is specified at 1.2 V core / 3.3 V I/O per distributor data, with industrial temperature support. Typical applications include industrial automation and networking nodes using the on-chip Ethernet MAC, motor control and power conversion leveraging the FPU and PWM peripherals, and connected sensing or gateways that need flash density for communication stacks. The ATSAM4E16CA-CU fits these roles where 120 MHz performance, 1 MB flash, and wired connectivity converge. Design-wise, plan power sequencing between the 3.3 V I/O domain and the 1.2 V core domain, and use bypass capacitors on all VDDIO/VDDCORE ball groups per the datasheet power distribution guidelines. Firmware can be developed in Atmel Studio / Microchip Studio with the SAM4E software package, and the device is programmed via SWD or JTAG. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a complete selection view in one place.

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ATSAM4E16CA-CUR - 120MHz Cortex-M4 MCU 1MB Flash | Microchip
ATSAM4E16CA-CUR

ATSAM4E16CA-CUR - 120MHz Cortex-M4 MCU 1MB Flash | Microchip

The Microchip Technology ATSAM4E16CA-CUR is a 32-bit ARM Cortex-M4 microcontroller with 1 MB (1M x 8) on-chip Flash memory, 128 KB SRAM, and a core clock speed of up to 120 MHz, housed in a 100-ball TFBGA (9x9 mm) package. A microcontroller (MCU) is a single integrated circuit that combines a processor core, program memory, data memory, and a rich set of peripherals into one chip, forming the complete embedded controller at the heart of an electronic system. Within the MCU hierarchy, the SAM4E family sits in the high-performance 32-bit tier, above 8-bit MCUs such as the PIC16 series and below application processors, and is commonly deployed in industrial control, consumer products, and connectivity equipment. Key differentiating features include the ARM Cortex-M4 core with an integrated Floating Point Unit (FPU), DSP instructions, and Thumb-2 instruction set, which enable efficient signal processing and math-heavy firmware. The 2 KB cache increases effective memory bandwidth, and the Memory Protection Unit (MPU) supports robust, partitioned firmware architectures. The 1 MB Flash supports complex application images, while the 100-TFBGA (9x9) footprint delivers high I/O density in a compact surface-mount package. Technically, the SAM4E architecture combines a high data bandwidth bus matrix with the 120 MHz Cortex-M4, allowing Flash execution, DMA transfers, and peripheral activity to proceed concurrently. The DSP instructions accelerate filter algorithms, while the hardware FPU eliminates costly software floating-point emulation in control loops, motor control algorithms, and sensor fusion calculations. Typical applications include industrial automation controllers, motor drives, and embedded networking equipment, where the combination of 120 MHz processing, FPU math capability, and 1 MB program memory matches demanding control and communication workloads. For design, note that the -CUR suffix denotes Tape and Reel packaging and an industrial temperature grade; Microchip recommends Revision B material for new prototypes and production per the product page notice. Plan the power and clocking scheme for the 120 MHz operating point using the manufacturer datasheet. This page synthesizes distributor pricing, drop-in alternatives within the SAM4E and related SAM4 families, and practical design notes not found in the manufacturer datasheet alone.

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ATSAM4E16CB-AN - Cortex-M4 120MHz 1MB Flash MCU | Microchip
ATSAM4E16CB-AN

ATSAM4E16CB-AN - Cortex-M4 120MHz 1MB Flash MCU | Microchip

The Microchip Technology ATSAM4E16CB-AN is a 32-bit ARM Cortex-M4 microcontroller with a floating point unit, 1 MB (1M x 8) Flash memory, 120 MHz maximum CPU clock, and a 128 Kbytes SRAM subsystem, housed in a 100-pin LQFP (14 x 14 mm) surface-mount package. A microcontroller (MCU) integrates a processor core, memory, and peripherals on a single silicon die, sitting at the heart of embedded control systems within the broader hierarchy of ARM Cortex-M processor-based devices. The SAM4E Series belongs to Microchip's (formerly Atmel) high-performance SAM family, positioned above the SAM4S entry line by adding an Ethernet MAC and CAN controller for connectivity-focused designs. Key features include the ARM Cortex-M4 core with 2 Kbytes instruction cache, Memory Protection Unit (MPU), DSP instructions and single-cycle MAC, Thumb-2 instruction set, and an FPU for efficient floating-point computation. Peripherals span a 10/100 Ethernet MAC, CAN 2.0B, USB 2.0 device port, multiple USARTs, SPI, TWI, 12-bit ADC and DAC, PWM channels, and a rich timer set. Architecturally, the multi-layer bus matrix delivers high data bandwidth between the 120 MHz core, SRAM banks, and DMA channels, allowing peripherals to move data without CPU intervention. The DSP/FPU extension makes it suitable for control-loop mathematics such as PID, FFT, and motor-control transforms executed in hardware. Typical applications include industrial Ethernet and CAN networking nodes, motor control and power conversion, building automation gateways, and medical instrumentation that needs deterministic 32-bit processing with on-chip networking. Design consideration: the 'AN' temperature suffix denotes the extended temperature range per the ordering code, and Microchip recommends Revision B silicon for new prototypes and production, so verify the device revision marking on the package top. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAM4E16CB-ANR - 120MHz Cortex-M4, 1MB Flash MCU | Microchip
ATSAM4E16CB-ANR

ATSAM4E16CB-ANR - 120MHz Cortex-M4, 1MB Flash MCU | Microchip

The Microchip Technology ATSAM4E16CB-ANR is a 32-bit ARM Cortex-M4 microcontroller running at 120 MHz with 1 MB of embedded Flash memory and an integrated floating point unit (FPU), housed in a 100-pin LQFP (14x14 mm) surface-mount package rated for extended temperature operation. A microcontroller (MCU) is a single integrated circuit that combines a processor core, program memory, data memory, and a rich set of peripherals onto one chip, forming the computational heart of embedded systems. Within the power-management hierarchy, MCUs sit above simple logic devices and below application processors; the SAM4E family belongs to Atmel/Microchip's ARM Cortex-M line of general-purpose 32-bit microcontrollers targeted at industrial control, connectivity, and high-bandwidth data processing. Key features of the ATSAM4E16CB-ANR include the high data bandwidth architecture highlighted by Microchip, a hardware FPU for efficient single-precision math, and 1 MB (1M x 8) of on-chip Flash program memory. The Cortex-M4 core with DSP instructions accelerates control loops, digital filtering, and sensor fusion algorithms. Extended temperature qualification makes the device suitable for industrial and outdoor environments. The SAM4E series differentiates itself through its connectivity-oriented peripheral set: Microchip positions the SAM4E16C as a Cortex-M4 MCU with FPU and high data bandwidth architecture, targeted at applications that move substantial data between peripherals and memory. The multi-layer bus matrix sustains concurrent DMA transfers alongside core execution, minimizing interrupt latency in communication-heavy designs. Typical applications include industrial automation controllers, networked sensing nodes, motor control systems, and embedded gateways where 120 MHz processing, hardware floating point, and 1 MB of Flash support both control and computation duties in a single chip. Design consideration: when migrating from other SAM4 or SAM3 parts, verify peripheral-clock configuration and revision status - Microchip recommends Revision B devices for prototypes and production, so confirm your board uses the current silicon revision. This page synthesizes distributor pricing data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, making it a complete engineering reference for the ATSAM4E16CB-ANR.

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ATSAM4E16CB-CN - Cortex-M4 120MHz 1MB MCU | Microchip
ATSAM4E16CB-CN

ATSAM4E16CB-CN - Cortex-M4 120MHz 1MB MCU | Microchip

The Microchip Technology ATSAM4E16CB-CN is a 32-bit ARM Cortex-M4 microcontroller running at up to 120 MHz with 1 MB (1M x 8) of embedded Flash memory, housed in a 100-ball TFBGA (9x9 mm) package qualified for extended temperature operation. A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the lowest layer of the embedded systems hierarchy: MCU -> embedded processor -> system-on-chip -> semiconductor device. The SAM4E family belongs to Microchip (formerly Atmel) ARM-based MCU portfolio, targeting industrial and connectivity applications that need both processing throughput and rich analog integration. Key features of the ATSAM4E16CB-CN include an ARM Cortex-M4 core with a 2 KB cache, Memory Protection Unit (MPU), DSP instructions, and a hardware Floating Point Unit (FPU) executing Thumb-2 instructions. It integrates dual 12-bit ADC and 12-bit DAC channels, Full-Speed USB, an Ethernet MAC, and multiple serial interfaces (USART, SPI, TWI), giving it a high data-bandwidth architecture suited for communication-heavy designs. Architecturally, the Cortex-M4 pipeline with FPU offloads float-intensive control loops and signal processing from software, while the 2 KB cache sustains execution efficiency from on-chip Flash at 120 MHz. The extended temperature (-CN suffix) grade and MRL B (Microchip Reel Label) TFBGA, GREEN packaging make it suitable for harsh environments and lead-free, RoHS-aligned assembly flows. Typical applications include industrial automation controllers, networked sensor gateways using the Ethernet MAC and USB, and motor control or power conversion systems that leverage the FPU, dual ADCs, and PWM peripherals. The 9x9 mm TFBGA footprint also fits space-constrained embedded designs. Design consideration: the 100-ball fine-pitch BGA requires controlled-impedance, microvia-capable PCB fabrication and X-ray inspection for assembly, so verify your manufacturing partner supports 0.8 mm ball-pitch BGA assembly before layout. Note that Microchip recommends Revision B parts for new designs and prototypes. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single verified reference for the ATSAM4E16CB-CN.

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ATSAM4E16CB-CNR - 120MHz Cortex-M4 1MB Flash MCU | Microchip
ATSAM4E16CB-CNR

ATSAM4E16CB-CNR - 120MHz Cortex-M4 1MB Flash MCU | Microchip

The Microchip Technology ATSAM4E16CB-CNR is an ARM Cortex-M4 microcontroller (MCU) running at 120 MHz with 1 MB (1M x 8) embedded Flash memory, housed in a 100-ball TFBGA (9x9 mm) package. It belongs to the SAM4E family and integrates a floating point unit (FPU) and a high data bandwidth architecture targeted at connected industrial and consumer applications. A microcontroller is a single-chip embedded computer that combines a processor core, memory, and peripherals on one die; the SAM4E sits within the hierarchy of 32-bit MCU -> ARM Cortex-M core family -> embedded microcontroller -> system-on-chip building block. The Cortex-M4 core with FPU executes DSP-class instructions while maintaining deterministic, low-latency interrupt handling that real-time embedded firmware demands. Key features of the ATSAM4E16CB-CNR include 1 MB of on-chip Flash, full-speed USB device operation, dual ADC/DAC converters, and an extended industrial temperature grade with RoHS/GREEN packaging (MRL B, Tape & Reel per Mouser listing data). The high-bandwidth bus matrix allows Flash, SRAM, and peripherals to operate concurrently, maximizing throughput for control loops and communication stacks. Technical depth: the device implements the Cortex-M4 pipeline with hardware FPU, and the SAM4E peripheral set couples a high-speed USB interface with precision analog conversion, making it well suited to systems that need both fast digital I/O and signal acquisition on a single chip. Microchip recommends Revision B silicon for new prototype and production designs. Typical applications include industrial control nodes, USB-connected instruments, motor control and power conversion platforms, and embedded gateways that benefit from integrated analog and USB connectivity in a compact 9x9 mm ball-grid footprint. Design consideration: BGA-100 assembly requires a controlled reflow profile and X-ray inspection capability; verify land-pattern and ball-map data in the manufacturer datasheet before layout release. This page synthesizes distributor pricing, verified drop-in alternatives, and sourcing data not consolidated on the manufacturer product page.

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ATSAM4E16EA-AUR - 120MHz Cortex-M4 1MB Flash MCU | Microchip
ATSAM4E16EA-AUR

ATSAM4E16EA-AUR - 120MHz Cortex-M4 1MB Flash MCU | Microchip

The Microchip Technology ATSAM4E16EA-AUR is a 32-bit ARM Cortex-M4 microcontroller running at 120 MHz with 1 MB (1M x 8) embedded Flash memory, housed in a 144-pin LQFP (20 x 20 mm) surface-mount package on Tape & Reel. Based on the Atmel/Microchip SAM4E series, it integrates a hardware floating point unit (FPU), DSP instructions, and a high data bandwidth bus architecture for embedded control applications. A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals on one die, forming the lowest level of the embedded-system hierarchy: ARM Cortex-M4 core -> SAM4E MCU family -> embedded processing -> semiconductor device. MCUs replace discrete processor-plus-memory combinations where integration, power efficiency, and cost matter most. Key features of the ATSAM4E16EA include the Cortex-M4 core with FPU at up to 120 MHz, 1 MB Flash and 128 KB SRAM for code and data, Ethernet MAC and CAN peripherals for networked industrial designs, USB device support, and multiple serial interfaces (USART, SPI, I2C/TWI). Operating voltage is 1.62V to 3.6V with an industrial temperature rating. Architecturally, the SAM4E series pairs the high-bandwidth multi-layer bus matrix with DMA on most peripherals, letting the FPU-accelerated core keep signal-processing loops deterministic while communication channels move data without CPU intervention. This makes the part well suited to motor control, gateways, and human-machine interface nodes. Typical applications include industrial automation controllers, Ethernet-connected embedded gateways, motor drives, and building control systems where the CAN and Ethernet MAC reduce external component count. Design consideration: for new designs Microchip recommends considering Revision B silicon for prototypes and production; also plan decoupling and clock layout per the manufacturer hardware design guidelines. This page synthesizes distributor pricing, drop-in family alternatives, application pairings, and practical design notes not found in the manufacturer datasheet.

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ATSAM4E16EB-AN - 120MHz Cortex-M4 MCU 1MB Flash | Microchip
ATSAM4E16EB-AN

ATSAM4E16EB-AN - 120MHz Cortex-M4 MCU 1MB Flash | Microchip

The Microchip Technology ATSAM4E16EB-AN is a 32-bit ARM Cortex-M4 microcontroller running at 120 MHz with 1 MB embedded Flash and a 144-pin LQFP (20x20 mm) package. It integrates a floating point unit (FPU), 117 general-purpose I/O lines, and a rich connectivity set including Ethernet MAC, CAN bus, USB, SPI, UART/USART, IrDA, SD/SDIO, and EBI/EMI external bus interface. A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, sitting at the heart of embedded systems from industrial automation to consumer devices. The SAM4E series belongs to Microchip's (formerly Atmel) 32-bit SAM ARM flash MCU family, positioned above the SAM3 and SAM4N series where high bandwidth, Ethernet, and math-intensive processing are required. Key differentiating features include the 120 MHz Cortex-M4 core with hardware FPU for single-precision math, a high data bandwidth bus architecture, integrated 10/100 Ethernet MAC, dual CAN 2.0B controllers, a 12-bit ADC, PWM channels, DMA, and safety peripherals such as brown-out detect, power-on reset, and a watchdog timer. This combination suits networked and control-oriented designs that would otherwise require multiple chips. Technically, the device operates from a 1.2V/3.3V supply scheme (3.3V main, 1.2V core regulation) and is offered in extended temperature, green/RoHS packaging. The Flash-based program memory supports in-system programming, and the external bus interface allows glueless attachment of SRAM, NOR Flash, and LCD modules. Typical applications include industrial Ethernet gateways, motor control and solar inverter systems, building automation nodes, and embedded networking equipment where CAN, Ethernet, and USB must coexist on one 120 MHz controller. Design consideration: the LQFP-144 is a fine-pitch (0.5 mm) surface-mount package - plan 4-layer PCB stackups and verify Ethernet PHY magnetics placement early; pinout planning against the 117 I/O budget is essential before routing. This page synthesizes distributor pricing, stock data, drop-in family alternatives, and practical design notes not consolidated in the manufacturer datasheet, as of 2026-09-20.

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ATSAM4E16EB-ANR - Cortex-M4 120MHz 1MB MCU | Microchip
ATSAM4E16EB-ANR

ATSAM4E16EB-ANR - Cortex-M4 120MHz 1MB MCU | Microchip

The Microchip Technology ATSAM4E16EB-ANR is a 32-bit ARM Cortex-M4 microcontroller (MCU) running at 120 MHz with 1 MB (1M x 8) embedded Flash memory, housed in a 144-pin LQFP (20x20 mm) surface-mount package supplied on Tape & Reel. A microcontroller is a single-chip computer that integrates a processor core, memory, and peripherals such as UARTs, SPI, I2C, ADCs, and timers on one die. Within the embedded-systems hierarchy, a 32-bit MCU such as the SAM4E family sits above 8-bit MCUs (like Microchip PIC16 devices) and below application processors, serving real-time industrial and connectivity tasks. Key features include the ARM Cortex-M4 core with a floating point unit (FPU), which accelerates DSP and control-loop math; a high data bandwidth bus architecture for fast peripheral throughput; and 1 MB of Flash for substantial application code. The SAM4E series integrates an Ethernet MAC and USB device port for networked nodes, per the SAM4E16E product family description from Microchip. The revision B silicon (the B suffix in ATSAM4E16EB) is the version Microchip recommends for new prototypes and production, offering corrected errata over revision A. Supply voltage is 3.3 V with 1.2 V internal core operation, per distributor parametric listings (1.2V/3.3V). The extended temperature suffix supports demanding industrial environments, and the GREEN, MRL-B designation indicates RoHS-compliant matte-tin lead finish. Typical applications include industrial automation nodes with Ethernet connectivity, motor control systems leveraging the FPU for field-oriented control, embedded gateways, and test and measurement equipment requiring 120 MHz compute headroom. Design consideration: allocate PCB decoupling per the SAM4E16E datasheet power supply recommendations and verify errata for revision B silicon before final tape-out. As an LQFP-144 device, plan for 0.5 mm fine-pitch soldering and adequate ground-plane thermal relief. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, per verified web data as of 2026-09-20.

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ATSAM4E16EB-CN - Cortex-M4 120MHz 1MB Flash MCU | Microchip
ATSAM4E16EB-CN

ATSAM4E16EB-CN - Cortex-M4 120MHz 1MB Flash MCU | Microchip

The Microchip Technology ATSAM4E16EB-CN is a 32-bit ARM Cortex-M4 microcontroller (MCU) running at 120 MHz with 1 MB (1M x 8) of embedded Flash memory, integrated FS USB, dual ADC/DAC analog front ends, and a floating point unit, housed in a 144-ball LFBGA (10 x 10 mm) package with extended temperature and green (RoHS-style) MRL B material designation. A 32-bit microcontroller is the central processing element of an embedded system, combining a processor core, memory, and peripherals on a single silicon die. Within the power-management hierarchy of embedded devices, the MCU sits above simple 8-bit controllers and below application processors, making it the standard choice for real-time control, connectivity, and human-interface tasks. The SAM4E family is Microchip (formerly Atmel) ARM Cortex-M4 line of general-purpose MCUs. Key differentiating features include the Cortex-M4 core with a hardware floating point unit (FPU) for efficient DSP and math-intensive code, a high data bandwidth bus architecture, 120 MHz maximum operating frequency, and 1 MB of on-chip Flash for large application firmware images. The full-speed USB device port and dual ADC/DAC analog subsystem reduce external component count in measurement and communication designs. Architecturally, the SAM4E16E series targets applications that need both compute throughput and deterministic real-time behavior. The ARMv7E-M architecture supports DSP instructions, and the FPU accelerates single-precision math used in motor control algorithms, sensor fusion, and communication stacks. The extended-temperature (-CN) grading supports deployment outside benign office environments. Typical applications include industrial motor control and automation nodes, embedded networking equipment with USB connectivity, and precision data acquisition systems that leverage the dual ADC/DAC resources. Design consideration: BGA packages require controlled-impedance multilayer PCB fabrication and reflow assembly; confirm your CM and inspection capability (X-ray for ball integrity) before committing to the 144-LFBGA footprint. This page synthesizes distributor pricing and availability, drop-in alternatives, comparison tables, and practical design notes not found in the manufacturer datasheet.

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ATSAM4E16EB-CNR - Cortex-M4 120MHz 1MB MCU | Microchip
ATSAM4E16EB-CNR

ATSAM4E16EB-CNR - Cortex-M4 120MHz 1MB MCU | Microchip

The Microchip Technology ATSAM4E16EB-CNR is a 32-bit ARM Cortex-M4 microcontroller running at 120 MHz with 1 MB (1M x 8) of embedded Flash memory, housed in a 144-ball LFBGA (10x10 mm) package. A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and programmable peripherals on one die, sitting at the heart of the embedded-systems hierarchy: MCU -> embedded processor -> SoC. The SAM4E family belongs to Microchip (formerly Atmel) ARM-based flash MCU lineup, positioned for industrial and connectivity-oriented designs that need both processing throughput and rich analog/digital integration. Key features of the ATSAM4E16EB-CNR include the ARM Cortex-M4 core with hardware floating point unit (FPU), a high data bandwidth bus architecture, 1 MB of on-chip Flash for code storage, and a 120 MHz maximum operating frequency. The extended-temperature, green (RoHS-oriented) LFBGA package supports high-density PCB layouts where a 10x10 mm footprint conserves board area compared with larger LQFP alternatives. Technically, the SAM4E16E series combines the Cortex-M4 pipeline with Microchip's SAM peripheral set, targeting applications such as industrial networking, gateways, and control nodes where the MCU must service multiple communication interfaces concurrently. The floating point unit accelerates control-loop math (PID filtering, DSP routines) without software emulation overhead, and the wide Flash array supports large protocol stacks and OTA-style firmware images. Typical applications include industrial automation controllers, building automation and gateways, embedded networking equipment, and motor-control or instrumentation nodes that benefit from 120 MHz deterministic execution and hardware FPU math. Design consideration: BGA packages require controlled-impedance, fine-pitch PCB fabrication with X-ray inspection capability for rework; plan your stack-up and land-pattern (per the Microchip LFBGA144 footprint in the datasheet) before committing layout. This page synthesizes distributor pricing, drop-in alternatives from the SAM4E family, and practical design notes not found in the manufacturer datasheet, giving engineers a single citable reference for sourcing and selection decisions.

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