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ATPL230AG55J19-R - PRIME PLC MCU Bundle | Microchip Technology
ATPL230AG55J19-R

ATPL230AG55J19-R - PRIME PLC MCU Bundle | Microchip Technology

The Microchip Technology ATPL230AG55J19-R is an application-specific power line communications (PLC) microcontroller bundle that combines the PL230A-AKU-R PRIME PLC modem PHY chip with the SAMG55J19A ARM Cortex-M4 flash microcontroller, supplied in LQFP surface-mount packages. This bundle (CPN for PRIME PLC modules/modems) provides the complete silicon set needed to build PRIME-compliant narrowband power line communication nodes. A power line communications microcontroller bundle is a system-level product in the semiconductor hierarchy: it belongs to the application-specific microcontroller category, which nests under microcontrollers (MCU), embedded processors, and integrated circuits. Instead of forcing engineers to source a PLC PHY and a host MCU separately, the bundle guarantees a silicon pairing that has been validated together for PRIME (PoweRline Intelligent Metering Evolution) protocol deployments. Key features of this part include the PL230A-AKU-R PLC front-end PHY with integrated analog AFE for coupling to the power line, the SAMG55J19A Cortex-M4 host MCU running the PRIME MAC/protocol stack, and the convenience of a single ordering code (-R indicates tape-and-reel packaging) covering both devices. This reduces BOM complexity and qualification effort for smart metering and grid automation platforms. Architecturally, the SAMG55J19A MCU contributes ARM Cortex-M4 processing with hardware DSP instructions, while the PL230A handles OFDM modulation/demodulation and analog line driving. The split architecture offloads real-time PHY processing from the application CPU, leaving headroom for metering firmware, security, and M2M connectivity tasks. Typical applications include smart electricity meters, streetlight control (smart lighting), solar inverter communication, and advanced metering infrastructure (AMI) data concentrators on PRIME-compliant grids such as those deployed in Europe and Latin America. A key design consideration is that this bundle requires a PRIME protocol stack license and a line-coupling network (transformer, coupling capacitors) designed to the target grid standard; the silicon alone does not form a complete modem. This page synthesizes distributor pricing and stock data, drop-in alternative analysis, and application-specific design notes not found on the manufacturer product page.

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ATPL230AG55J19-Y - PRIME PLC Bundle MCU Kit | Microchip
ATPL230AG55J19-Y

ATPL230AG55J19-Y - PRIME PLC Bundle MCU Kit | Microchip

The Microchip Technology ATPL230AG55J19-Y is a Network Controller & Processor ICs bundle consisting of the PL230A-AKU-Y PRIME power line communication (PLC) modem paired with the SAMG55J19A-MU ARM-based microcontroller, supplied in an LQFP surface-mount package. This certified combination part number (CPN) provides a complete, pre-validated hardware platform for building PRIME-compliant narrowband PLC modules and modems. A power line communication modem enables data transmission over existing AC mains or utility power lines, eliminating the need for dedicated communication wiring. PRIME (PoweRline Intelligent Metering Evolution) is an open, multi-vendor narrowband PLC standard widely deployed in smart metering and AMI (Advanced Metering Infrastructure) networks across Europe, Latin America, and Asia. In the system hierarchy, this bundle spans two semiconductor categories: an application-specific PLC front-end modem and a general-purpose ARM Cortex microcontroller that hosts the PRIME protocol stack. Key features of the bundle include the PL230A PRIME-certified modem PHY with integrated analog line driver support, the SAM G55J19A microcontroller with high-performance ARM Cortex-M4-class processing for protocol execution, and pre-verified hardware compatibility between the two devices, which reduces integration risk and time-to-market. The two-die bundle approach means engineers receive factory-matched silicon whose firmware interfaces have been validated by Microchip for PRIME base node and service node operation. The ATPL230AG55J19-Y is typically used in smart electricity meters, data concentrators, street lighting control, and distribution automation equipment where PRIME-class metering connectivity over the low-voltage power line is required. The SAM G55 microcontroller side also provides peripherals such as UART/SPI/I2C and USB-class connectivity for interfacing with metering ASICs and local communication heads. For design-in, verify the LQFP footprint against the individual PL230A and SAM G55 datasheets, plan the coupling-circuit impedance for the target grid standard, and allocate code space for the PRIME stack on the MCU flash. This page synthesizes distributor pricing data, sourcing options, bundle architecture analysis, and drop-in alternative analysis not found in the manufacturer datasheet.

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ATPL250AG55J19-R - G3-PLC Modem Bundle 80-LQFP | Microchip
ATPL250AG55J19-R

ATPL250AG55J19-R - G3-PLC Modem Bundle 80-LQFP | Microchip

The Microchip Technology ATPL250AG55J19-R is a G3-PLC (Power Line Communications) modem bundle combining the ATPL250A-AKU-R PLC modem front-end with the SAM G55J19A (ATSAMG55J19A-MUT) Arm Cortex-M4 based microcontroller, delivered as a pre-configured certified pair in an 80-pin LQFP tape-and-reel package. The device targets Power Line Communications applications and is classified as an embedded, application-specific microcontroller solution. A G3-PLC modem is a specialized communications IC that transmits data over existing AC mains or DC power lines using orthogonal frequency-division multiplexing (OFDM) in the CENELEC and FCC frequency bands. Within the system hierarchy it sits at the physical and data-link layers of a smart-grid or IoT node: power line modem -> communication controller -> application-specific MCU -> embedded system. By bundling the PHY modem with an MCU, Microchip removes the integration effort of pairing a modem with a host processor. Key features of this bundle include the certified G3-PLC modem stack in the ATPL250A silicon, the 120 MHz Arm Cortex-M4 core of the SAM G55 family in the SAMG55J19A, and factory-matched firmware coupling between the two dies so that the PLC protocol engine and application firmware operate as a validated pair. The Tape & Reel (T/R) delivery format supports automated pick-and-place assembly in volume production. Technically, the ATPL250A handles analog front-end functions, line coupling, and OFDM modulation/demodulation, while the SAM G55J19A executes the G3-PLC protocol stack and the end-equipment application. The bundle is identified by Microchip CPNs for G3-PLC modules and modems, listed as Bundle PL250A-AKU-R plus SAMG55J19A-MUT, and the published datasheet dates from 2016-09-20. Typical applications include smart meters (electricity, gas, water), streetlight control networks, solar inverter monitoring, and home-area energy management gateways, all of which benefit from communicating over existing power lines without new wiring. A key design consideration is that this is a bundle, not a single die: PCB layout must accommodate both the LQFP-80 host footprint and the analog line-driver/coupling network between the ATPL250A and the power line, following Microchip reference designs for coupler impedance and isolation. This page synthesizes distributor stock listings, cross-reference comparisons (including the Octopart ATPL210A-A1U-Y comparison), bundle composition notes, and procurement guidance not consolidated in the manufacturer datasheet.

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ATPL250AG55J19-Y - PLC MCU, SAMG55J19A + PL250A | Microchip
ATPL250AG55J19-Y

ATPL250AG55J19-Y - PLC MCU, SAMG55J19A + PL250A | Microchip

The Microchip Technology ATPL250AG55J19-Y is an embedded-application-specific microcontroller that integrates the PL250A power line communication (PLC) modem with the SAMG55J19A ARM Cortex-M4 microcontroller, delivered in an LQFP package with tray packing. The device combines a high-performance ARM Cortex-M4 based MCU core with a dedicated PLC signal-processing front end, targeting power line communications applications such as smart metering and industrial control. An embedded-application-specific microcontroller is a device that augments a general-purpose MCU core with dedicated application hardware, so that a single chip can run user firmware and perform a specialized physical-layer task simultaneously. In this case the category sits within the hierarchy: embedded MCU -> ARM Cortex-M4 microcontroller -> application-specific MCU -> PLC SoC, with the PL250A block handling the proprietary PLC modulation and the SAMG55J19A handling the protocol stack and application code. Key features include the PL250A-AKU-Y PLC modem function paired with the SAMG55J19A-MU MCU, LQFP surface-mount packaging, and tray packaging format as indicated by the -Y suffix. The MCU side is based on the Atmel/Microchip SAM G55 family, which provides an ARM Cortex-M4 core with DSP and floating-point instructions, suitable for running the PLC physical-layer algorithms and application stack on one die. Technical depth: the integration of the PLC modem with the Cortex-M4 core removes the need for a separate host processor in power line communication nodes, reducing BOM count, board area, and inter-chip communication latency. The LQFP leaded package offers good solderability and simplified inspection compared with fine-pitch BGA alternatives. Typical applications include smart energy metering, street lighting control, home automation gateways, and industrial power line networks, all of which require robust communication over existing mains wiring. Design consideration: PLC designs require careful analog front-end coupling to the mains via a coupling transformer and protection network; follow the Microchip reference design for the PL250A signal path. This page synthesizes distributor inventory data, packaging information, and sourcing guidance not consolidated in the manufacturer product listing.

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ATSAM3A4CA-AU - 84MHz Cortex-M3 MCU 256KB Flash | Microchip
ATSAM3A4CA-AU

ATSAM3A4CA-AU - 84MHz Cortex-M3 MCU 256KB Flash | Microchip

The Microchip Technology ATSAM3A4CA-AU is a 32-bit ARM Cortex-M3 flash microcontroller running at 84 MHz with 256 KB of flash memory in 2 x 128 KB banks and 64 KB of SRAM in 2 x 32 KB banks, housed in a 100-pin LQFP (14 x 14 mm) surface-mount package. A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the lowest tier of the embedded computing hierarchy: microcontroller unit, embedded processor, system-on-chip. The SAM3A family sits within Microchip's (formerly Atmel) SMART ARM-based MCU portfolio, targeting industrial and connectivity applications where a balance of performance, integration, and cost is required. Key features include the ARM Cortex-M3 revision 2.0 core with a Thumb-2 instruction set, a Memory Protection Unit (MPU), a 24-bit SysTick counter, and a Nested Vector Interrupt Controller (NVIC). On-chip analog integration comprises a 16-channel 12-bit ADC and two 12-bit DACs, while connectivity peripherals include CAN, I2C, IrDA, LIN, MMC/SDIO, SPI, SSC, UART/USART, and USB. The dual-bank flash architecture supports in-application programming and firmware update strategies, allowing one bank to execute code while the other is reprogrammed. The wide 1.62V to 3.6V supply range and internal oscillator option simplify power-supply and clock design, and the operating range of -40C to +85C suits industrial environments. Typical applications include industrial control and automation nodes, CAN-bus automotive and factory communication gateways, motor control systems, and embedded connectivity bridges using UART, SPI, and I2C peripherals. Designers should budget flash and SRAM conservatively: 256 KB of flash and 64 KB of SRAM are ample for CAN protocol stacks and control loops, but larger RTOS-based designs may prefer the SAM3A8C with 512 KB of flash. Decouple all VDD/VDDIO pins and use the internal MPU to enforce task isolation in safety-minded firmware. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet, based on data as of 2026-09-19.

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ATSAM3A4CA-CU - 84MHz Cortex-M3 MCU 256KB Flash | Microchip
ATSAM3A4CA-CU

ATSAM3A4CA-CU - 84MHz Cortex-M3 MCU 256KB Flash | Microchip

The Microchip Technology ATSAM3A4CA-CU is a 32-bit ARM Cortex-M3 flash microcontroller running at 84 MHz with 256KB of flash memory (organized in 2 x 128KB banks), 64KB of SRAM (2 x 32KB banks), packaged in a 100-ball TFBGA measuring 9x9 mm. A microcontroller unit (MCU) is a single-chip embedded computer that integrates a processor core, program memory, data memory, and peripherals such as timers, serial interfaces, and analog blocks. MCUs sit at the device level of the embedded-systems hierarchy - below system-on-chip (SoC) and application processors - and the SAM3A belongs to the broader ARM Cortex-M family of 32-bit microcontroller cores, which in turn belongs to the ARM architecture ecosystem. Key features include the ARM Cortex-M3 revision 2.0 core executing the Thumb-2 instruction set, a Memory Protection Unit (MPU), a 24-bit SysTick counter, and a Nested Vectored Interrupt Controller (NVIC) for deterministic interrupt latency. The dual-bank flash architecture enables safe in-application programming, while the dual-bank SRAM supports efficient DMA transfers without bus contention. Peripherals cover automotive-relevant connectivity: two CAN controllers, USART with ISO7816, IrDA and LIN support, SPI, SSC (I2S audio), TWI (I2C-compatible), and an MMC/SD memory card interface. The device operates from a 1.62V to 3.6V single supply (typical 1.8V, 2.5V, or 3.3V rails) across an industrial temperature range, and the CU suffix denotes a RoHS-compliant, halogen-free green package. The 9x9 mm 100-ball TFBGA footprint delivers high I/O density for compact industrial PCBs. Typical applications include industrial automation nodes, CAN networking gateways, motor control and power-conversion supervisory systems, and embedded HMI or data-logging equipment. When designing with the ATSAM3A4CA-CU, budget the BGA footprint carefully: 0.8 mm ball pitch requires controlled-impedance routing for CAN and SSC signals, and the power distribution network should include decoupling per the SAM3X/SAM3A datasheet power-rail guidance. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAM3A8CA-AU - 84MHz Cortex-M3 MCU, 512KB Flash | Microchip
ATSAM3A8CA-AU

ATSAM3A8CA-AU - 84MHz Cortex-M3 MCU, 512KB Flash | Microchip

The Microchip Technology ATSAM3A8CA-AU is a 32-bit ARM Cortex-M3 flash microcontroller running at up to 84 MHz with 512KB of flash memory (organized as 2 x 256KB banks) and 96KB of SRAM (64KB + 32KB banks), housed in a 100-pin LQFP (14 x 14 mm) package. A flash microcontroller is a single-chip embedded processor that integrates a CPU core, program flash, SRAM, clock system, and a rich set of peripherals onto one die. Within the power-management hierarchy, an MCU such as the SAM3A sits at the lowest level of a control system, directly driving actuators, communications transceivers, and user interfaces. The ATSAM3A8CA-AU belongs to the SAM3A family, a branch of the Atmel (now Microchip) SAM3 series based on the ARM Cortex-M3 revision 2.0 processor. Key features include the Thumb-2 instruction set, a Memory Protection Unit (MPU), a 24-bit SysTick timer, and a Nested Vector Interrupt Controller (NVIC). Peripheral connectivity is extensive: CAN, I2C (Two-Wire Interface), IrDA, LIN, MMC/SD, SPI, SSC (synchronous serial controller), and UART/USART ports. A distinctive family feature is the integrated high-speed USB 2.0 device transceiver, enabling fast firmware up/downloading and plug-and-play serial interconnectivity with robust EMI tolerance. Architecturally, the Cortex-M3 revision 2.0 core delivers deterministic interrupt latency through the NVIC and efficient code density through Thumb-2, while the dual-bank flash arrangement supports safe in-application firmware updates. The 96KB SRAM split into 64KB + 32KB banks allows concurrent buffering of communications data and application variables. Typical applications include industrial CAN networking nodes, USB-connected industrial and medical instruments, motor-control interfaces via SSC and UART/USART, and embedded gateways that bridge CAN buses to USB or SPI peripherals. Design consideration: the device operates from a 1.62V to 3.6V single supply (typical 1.8V, 2.5V, or 3.3V systems), so ensure the VDDIO and VDDCORE domains are properly decoupled and that the 12MHz crystal or internal RC source meets the PLL lock requirements before enabling the 84MHz clock tree. This page synthesizes distributor pricing signals, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAM3N00AA-AU - 48MHz Cortex-M3 MCU 16KB Flash LQFP-48 | Microchip
ATSAM3N00AA-AU

ATSAM3N00AA-AU - 48MHz Cortex-M3 MCU 16KB Flash LQFP-48 | Microchip

The Microchip Technology ATSAM3N00AA-AU (formerly Atmel) is a 32-bit ARM Cortex-M3 flash microcontroller running at up to 48 MHz with 16 KB of Flash program memory, 4 KB of SRAM, and a 48-pin LQFP (7x7 mm) surface-mount package operating over the industrial temperature range. A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the lowest tier of the embedded computing hierarchy (MCU -> embedded processor -> SoC -> application processor). The SAM3N series belongs to Microchip's ARM-based SAM flash MCU family, built on the high-performance 32-bit ARM Cortex-M3 RISC processor with Thumb-2 instruction set and an integrated Nested Vector Interrupt Controller (NVIC). Key features of the ATSAM3N00AA-AU include the ARM Cortex-M3 revision 2.0 core at 48 MHz, a 24-bit SysTick timer for RTOS tick generation, a single-cycle hardware multiply, and pin-to-pin compatible scaling across the SAM3N memory family. Supply operation spans 1.8V, 2.5V, and 3.3V rails, giving designers flexibility across battery and industrial power architectures. Technically, the device leverages the Cortex-M3 three-stage pipeline and Harvard architecture, separating instruction and data buses for efficient flash execution. The 16 KB flash supports in-system programming, while the 4 KB SRAM handles stack and data buffers. Because the SAM3N family shares a common peripheral set and footprint, firmware written for the ATSAM3N00AA migrates to larger 256 KB flash variants with minimal code changes. Typical applications include industrial sensing nodes, consumer appliance control panels, low-cost data loggers, and general-purpose embedded control where a 32-bit core is required but USB connectivity of higher SAM3N members is not used. A key design consideration is power budgeting: select the 1.8V rail for lowest active power, and verify that the 4 KB SRAM is sufficient for your RTOS stack, since this is the smallest memory point in the SAM3N family. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAM3N00AA-AUR - 48MHz Cortex-M3 16KB Flash MCU | Microchip
ATSAM3N00AA-AUR

ATSAM3N00AA-AUR - 48MHz Cortex-M3 16KB Flash MCU | Microchip

The Microchip Technology ATSAM3N00AA-AUR is a 32-bit ARM Cortex-M3 microcontroller running at up to 48 MHz with 16 KB of single-cycle Flash memory and 4 KB of SRAM, housed in a 48-pin LQFP (7 x 7 mm) package rated for industrial temperatures of -40C to +85C. A microcontroller (MCU) is a compact integrated circuit that combines a processor core, program memory, data memory, and peripherals on a single die, serving as the control brain of embedded systems. The SAM3N family sits within the broader hierarchy of ARM-based 32-bit microcontrollers, part of Microchip's SAM product line of flash MCUs that succeeded the Atmel SAM3 series. Key features of the ATSAM3N00AA-AUR include the ARM Cortex-M3 RISC core with a 3-stage pipeline and nested vectored interrupt controller (NVIC), supply operation from 1.62 V to 3.6 V, and a rich peripheral set that includes USART, UART, TWI (I2C) and SPI serial interfaces, an 8-channel 10-bit ADC, PWM timers, and a real-time clock. Its low-power architecture provides sleep, wait, and backup operating modes for battery-sensitive designs. Technically, the device integrates a power management controller that allows per-peripheral clock gating, reducing dynamic current consumption. The Flash memory supports in-system programming via JTAG or the serial UART/TWI boot loader, and an 8-level priority interrupt structure simplifies deterministic real-time firmware design. Typical applications include industrial control nodes, consumer appliance interfaces, metering front-ends, and low-cost sensing systems where 16 KB of Flash and a 48-pin footprint provide the right balance of capability and cost. When designing with this MCU, budget code size carefully: after the SAM3N ROM library footprint, roughly 14 KB of usable Flash remains, so consider pin-compatible SAM3N family members with larger memory if code growth is expected. This page synthesizes distributor pricing, drop-in family alternatives, comparison data, and practical design notes not found in the manufacturer datasheet, with pricing as of 2026-09-19.

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ATSAM3N00AA-MU - 48MHz Cortex-M3 MCU 16KB Flash | Microchip
ATSAM3N00AA-MU

ATSAM3N00AA-MU - 48MHz Cortex-M3 MCU 16KB Flash | Microchip

The Microchip Technology ATSAM3N00AA-MU is a 32-bit ARM Cortex-M3 flash microcontroller operating at up to 48 MHz with 16 KB of flash memory and 4 KB of SRAM, housed in a 48-pin QFN (7x7 mm) surface-mount package. A microcontroller (MCU) is a single integrated circuit that combines a processor core, program memory, data memory, and peripherals into one chip, forming the heart of embedded systems. The ATSAM3N00AA belongs to the entry-level tier of the SAM3N family, which sits within the broader ARM Cortex-M 32-bit microcontroller hierarchy, above 8-bit MCUs in throughput while remaining cost-optimized for high-volume designs. Key features include the high-performance ARM Cortex-M3 RISC processor with Harvard architecture and 3-stage pipeline, 16 KB (16K x 8) of single-cycle flash program memory, and 4 KB of SRAM. The device integrates a rich peripheral set for its class, including USART and UART serial ports, SPI, TWI (I2C), multiple timers, and an ADC, enabling compact single-chip designs for serial bridging, sensing, and control tasks. The SAM3N series is documented by Atmel (now Microchip) as pin-to-pin compatible with the SAM3S series, and family members scale in memory while sharing the same footprint. This allows a single PCB design to be populated with different SAM3N/SAM3S flash densities as memory requirements evolve - a significant advantage in cost-sensitive, high-volume applications where firmware growth must not force a board respin. Typical applications include industrial sensor nodes, consumer appliance control, motor-adjacent auxiliary control, low-cost data loggers, and general-purpose embedded control where a 48 MHz 32-bit core outclasses 8-bit alternatives at a similar price point. The industrial temperature grade supports harsh environments from -40C to +85C. Design consideration: with only 16 KB flash and 4 KB SRAM, budget code size carefully; use compiler size optimization and consider ATSAM3N1AA-MU or higher as a pin-compatible upgrade path. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a decision-ready view of the SAM3N00A ecosystem.

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ATSAM3N00AA-MUR - 48MHz Cortex-M3 MCU 16KB Flash | Microchip
ATSAM3N00AA-MUR

ATSAM3N00AA-MUR - 48MHz Cortex-M3 MCU 16KB Flash | Microchip

The Microchip Technology ATSAM3N00AA-MUR is a 32-bit ARM Cortex-M3 flash microcontroller operating at 48 MHz with 16KB of flash program memory and 4KB of SRAM, housed in a 48-pin QFN (7x7 mm) package with exposed pad. It operates from 1.62V to 3.6V across the industrial temperature range of -40C to +85C. A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the lowest tier of the embedded processing hierarchy that spans from MCUs to application processors. Microcontrollers execute dedicated control tasks in real time, making them the workhorses of embedded electronics. The SAM3N family belongs to Microchip (formerly Atmel) ARM-based flash MCU portfolio, positioning itself as a cost-optimized 32-bit upgrade path from 8-bit AVR and PIC architectures. Key features of the ATSAM3N00AA include the high-performance 32-bit ARM Cortex-M3 RISC core with nested vectored interrupt controller (NVIC), a 12-channel 10-bit ADC, USART, UART, SPI and Two-Wire Interface (TWI) serial peripherals, PWM timers, and brown-out reset with watchdog supervision. The flash memory supports in-system programming, and the device supports the Serial Wire Debug (SWD) and JTAG interfaces for development. The Cortex-M3 architecture delivers Thumb-2 code density, single-cycle multiply hardware, and deterministic interrupt latency, allowing efficient C-level programming through ARM-standard toolchains such as Keil MDK, IAR Embedded Workbench, and Microchip's free MPLAB X / Atmel Studio ecosystem with the SAM D/N Xplained family of evaluation kits. Typical applications include industrial sensor nodes, consumer appliance control, stepper and DC motor control, battery-powered meters, and general-purpose 32-bit control systems where a low pin count, low power, and low BOM cost matter more than large flash capacity. When designing with this MCU, budget the modest 16KB flash carefully: use compiler size optimization (-Os) and consider the pin-compatible, higher-flash SAM3N variants for code growth headroom. This page synthesizes distributor pricing, same-package upgrade alternatives, pinout, and practical design guidance not found in the manufacturer datasheet.

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ATSAM3N00BA-AU - ARM Cortex-M3 MCU 48MHz 16KB | Microchip
ATSAM3N00BA-AU

ATSAM3N00BA-AU - ARM Cortex-M3 MCU 48MHz 16KB | Microchip

The Microchip Technology (Atmel) ATSAM3N00BA-AU is a 32-bit ARM Cortex-M3 flash microcontroller running at 48 MHz with 16KB (16K x 8) of embedded flash memory, housed in a 64-pin LQFP (10x10 mm) surface-mount package with gull-wing terminals. It belongs to the SAM3N series of entry-level ARM-based flash microcontrollers designed for cost-sensitive embedded control. A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and peripherals into one chip, forming the computational heart of embedded systems. Within the hierarchy of semiconductor devices, the SAM3N family sits in the 32-bit ARM microcontroller segment, positioned above 8-bit MCUs in processing capability while remaining economical. The ARM Cortex-M3 revision 2.0 core executes the Thumb-2 instruction set, delivering code density that reduces flash requirements for a given function. Key features of the ATSAM3N00BA-AU include the 48 MHz Cortex-M3 processor, a 24-bit SysTick counter for deterministic RTOS timing, and a Nested Vector Interrupt Controller (NVIC) for low-latency interrupt handling. The 16KB flash provides program storage for compact applications, and the industrial temperature rating (-40C to +85C per Mouser listing) supports harsh environments. Mouser lists the package as LQFP, Green, IND TEMP, MRL A, indicating RoHS-aligned green packaging and moisture reflow level A. According to the manufacturer datasheet, the SAM3N series provides pin-to-pin compatibility across memory-density variants, so the 16KB ATSAM3N00BA-AU can be swapped for larger-memory siblings on the same PCB when firmware outgrows available space. Architecture strengths include robust EMI tolerance and the ARM ecosystem of development tools, including the Atmel/Microchip Studio IDE and SAM-BA in-system programming. Typical applications include industrial automation nodes, consumer appliance control, motor control interfaces, and sensor-gathering IoT endpoints where 16KB of code space and 48 MHz performance are sufficient. A key design consideration: flash density is the primary constraint - verify the compiled firmware image fits within 16KB before committing to the 00B variant, since other SAM3N family members on the identical footprint offer up to 256KB. This page synthesizes distributor listings from DigiKey, Mouser, Octopart, and cross-reference research into a single resource, adding drop-in family alternatives, comparison tables, and design guidance not consolidated on the manufacturer datasheet.

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ATSAM3N00BA-MU - ARM Cortex-M3 48MHz 16KB MCU | Microchip
ATSAM3N00BA-MU

ATSAM3N00BA-MU - ARM Cortex-M3 48MHz 16KB MCU | Microchip

The Microchip Technology ATSAM3N00BA-MU is a 32-bit ARM Cortex-M3 flash microcontroller running at up to 48 MHz with 16 KB of embedded Flash and 4 KB of SRAM, housed in a 64-pin QFN (9x9 mm) surface-mount package with industrial temperature capability. A microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals such as timers, serial interfaces, and analog-to-digital converters. Within the semiconductor hierarchy, the ATSAM3N00BA belongs to the microcontroller class, specifically the 32-bit ARM-based Flash MCU family, which sits above 8-bit MCUs in processing throughput while remaining below application processors in complexity. The SAM3N series targets cost-sensitive, low-power embedded control designs. Key features include the ARM Cortex-M3 revision 2.0 core with Thumb-2 instruction set, a 24-bit SysTick counter, and a Nested Vector Interrupt Controller (NVIC) for deterministic interrupt handling. Per the Atmel/Microchip datasheet, the device is pin-to-pin compatible with SAM7S legacy products (48- and 64-pin versions) and SAM3S (48-, 64-, and 100-pin versions), which significantly eases migration between family members and legacy designs. The 128-bit wide Flash access with memory accelerator sustains near-zero-wait-state execution at 48 MHz. The SAM3N architecture separates the core bus from the peripheral bus, so peripheral accesses do not stall core execution. The 16 KB Flash supports in-system programming, and the 4 KB SRAM handles application data and stacks for compact embedded firmware. Supply voltage ranges from 1.62 V to 3.6 V per distributor-verified specifications, supporting both Li-ion-tolerant and 3.3 V industrial rails. Industrial temperature grade operation supports harsh environments. Typical applications include industrial automation nodes, consumer appliance control, metering front-ends, and legacy SAM7S redesigns where pin compatibility reduces PCB changes. The 64-QFN footprint with exposed pad also suits compact sensing and actuation boards. A key design consideration is Flash density: at 16 KB, the ATSAM3N00BA suits RTOS-free or bare-metal firmware; if code grows, the pin-compatible ATSAM3N001BA/002BA/004BA offer 32/64/128 KB in the identical 64-QFN footprint. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ATSAM3N00BA-MUR - ARM Cortex-M3 48MHz MCU 16KB Flash | Microchip
ATSAM3N00BA-MUR

ATSAM3N00BA-MUR - ARM Cortex-M3 48MHz MCU 16KB Flash | Microchip

The Microchip Technology ATSAM3N00BA-MUR is a 32-bit ARM Cortex-M3 microcontroller (MCU) operating at up to 48 MHz, with 16 KB of Flash program memory and 4 KB of SRAM, housed in a 64-pin VQFN (9x9 mm) package with exposed pad. An ARM Cortex-M3 based MCU is a 32-bit reduced-instruction-set (RISC) processor core implementing the ARMv7-M architecture, which combines efficient thumb-2 instruction execution with a nested vectored interrupt controller (NVIC) for deterministic, low-latency interrupt handling. Within the embedded system hierarchy, the MCU sits at the control layer above discrete logic and below application processors, integrating CPU, Flash, SRAM, peripherals, and clocking into a single chip for cost-sensitive embedded control. Key differentiating specifications of the ATSAM3N00BA-MUR include its 48 MHz maximum core frequency, 16 KB (16K x 8) Flash memory, 4 KB SRAM, and the compact 64-QFN (9x9 mm) surface-mount package with exposed thermal pad. The -MUR suffix denotes tape-and-reel packaging for automated high-volume assembly, and the device is specified for industrial temperature-grade operation. Architecturally, the SAM3N series is Microchip's entry-level, general-purpose Cortex-M3 family, focusing on low power consumption and a rich peripheral set rather than the higher integration of the SAM4 series. The Cortex-M3 core executes the Thumb-2 instruction set, delivering high code density that is particularly valuable in Flash-constrained designs like this 16 KB part. Typical applications include industrial control nodes, consumer appliances, metering front-ends, and portable battery-powered devices where a small footprint, low power, and adequate 48 MHz processing headroom are required without the cost of larger Flash densities. When designing with this MCU, budget Flash carefully: 16 KB must hold the application plus an optional small bootloader, so use size-optimized (-Os) compilation and consider the pin-compatible larger-memory SAM3N family members for future headroom. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ATSAM3N0AA-AU - 48MHz Cortex-M3 MCU 32KB Flash | Microchip
ATSAM3N0AA-AU

ATSAM3N0AA-AU - 48MHz Cortex-M3 MCU 32KB Flash | Microchip

The Microchip Technology ATSAM3N0AA-AU (originally Atmel) is a 32-bit ARM Cortex-M3 flash microcontroller running at up to 48 MHz, with 32 KB of single-cycle Flash memory, housed in a 48-pin LQFP (7x7 mm) surface-mount package. A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the lowest tier of the embedded processing hierarchy: Cortex-M3 core -> ARM-based Flash MCU -> microcontroller -> semiconductor. The SAM3N series belongs to Microchip's SAM3 family of ARM-based Flash microcontrollers and targets cost-sensitive, high-volume embedded applications. Key features include the ARM Cortex-M3 revision 2.0 core with Thumb-2 instruction set, a 24-bit SysTick timer, and a Nested Vector Interrupt Controller (NVIC). The device operates from 1.62V to 3.6V (1.8V/2.5V/3.3V supply classes) and is rated for industrial temperature operation. The -AU suffix denotes a 48-pin LQFP in a green, RoHS-compliant package supplied in trays. Architecturally, the Cortex-M3 Harvard core delivers deterministic single-cycle Flash execution with efficient Thumb-2 code density, while the NVIC provides low-latency, prioritized interrupt handling essential for real-time control. The SAM3N series is pin-to-pin compatible with the SAM3S series and with legacy SAM7S devices (48- and 64-pin versions), enabling seamless migration paths for flash density and peripheral upgrades without PCB rework. Typical applications include industrial control and automation nodes, consumer appliance interfaces, metering front-ends, and cost-optimized IoT sensor endpoints where 32-bit performance is needed at 8/16-bit MCU price points. Design consideration: the ATSAM3N0AA-AU has no USB peripheral (that belongs to other SAM3 variants), so designs requiring high-speed USB should select an appropriate sibling part; also budget Flash and SRAM margins carefully since 32 KB Flash is the entry point of the family. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAM3N0AA-AUR - 48MHz Cortex-M3 MCU 32KB Flash LQFP-48 | Microchip
ATSAM3N0AA-AUR

ATSAM3N0AA-AUR - 48MHz Cortex-M3 MCU 32KB Flash LQFP-48 | Microchip

The Microchip Technology ATSAM3N0AA-AUR is a 32-bit ARM Cortex-M3 microcontroller running at up to 48 MHz, with 32KB of single-cycle Flash memory and 8KB of SRAM, housed in a 48-pin LQFP (7x7 mm) package rated for the industrial temperature range. A microcontroller (MCU) is a complete computing system on a single chip, integrating a processor core, program memory, data memory, and peripherals such as UART, SPI, timers, and GPIO. Within the power-management hierarchy of embedded systems, the SAM3N family sits in Microchip's entry-level 32-bit ARM MCU portfolio, below the SAM3S/SAM4S families, and serves as the control element that reads sensors, drives actuators, and manages communication in a larger system design. Key features of the ATSAM3N0AA-AUR include the ARM Cortex-M3 RISC core with a 3-stage pipeline and NVIC interrupt controller, 1.62V to 3.6V single-supply operation, and multiple low-power modes including wait, sleep, and backup modes for battery-conscious designs. The SAM3N series is pin-, peripheral-, and code-compatible across flash densities, allowing engineers to scale memory without redesigning the PCB. Technically, the Cortex-M3 core executes Thumb-2 instructions with hardware divide and a nested vectored interrupt controller, delivering deterministic interrupt latency. The flash memory supports single-cycle access at 48 MHz, and the device integrates a power management controller, a watchdog timer, and standard serial peripherals for connecting external devices. Typical applications include industrial control panels, consumer appliances, metering front ends, and battery-powered sensor nodes where 32-bit performance is required at 8-bit MCU cost points. A key design consideration is power budgeting: configure unused peripheral clocks off in the power management controller to minimize active-mode current, and exploit the low-power modes during idle periods. This page synthesizes verified distributor listings, drop-in alternatives within the SAM3N family, and practical design guidance not found on the manufacturer datasheet alone.

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ATSAM3N0AA-MU - 48MHz ARM Cortex-M3 MCU 32KB Flash | Microchip (Tape & Reel)
ATSAM3N0AA-MU

ATSAM3N0AA-MU - 48MHz ARM Cortex-M3 MCU 32KB Flash | Microchip (Tape & Reel)

The Microchip Technology ATSAM3N0AA-MU is a 32-bit ARM Cortex-M3 microcontroller operating at up to 48 MHz, integrating 32 KB of FLASH program memory and 8 KB of SRAM in a 48-pin QFN (7x7 mm) package with exposed pad, qualified for industrial temperature ranges. A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the lowest tier of the embedded processing hierarchy: MCU -> embedded processor -> application processor -> system-on-chip. MCUs execute real-time control tasks in power-sensitive and cost-sensitive designs where a full application processor is unnecessary. The SAM3N series belongs to Microchip (formerly Atmel) ARM-based flash MCU portfolio, which also includes the SAM4N, SAM L, and megaAVR families. Key features of the ATSAM3N0AA-MU include the ARM Cortex-M3 core with Thumb-2 instruction set, integrated DMA controller for low-CPU-overhead data transfers, PWM channels for motor and lighting control, and a watchdog timer (WDT) for system reliability. The nested vectored interrupt controller (NVIC) provides deterministic low-latency interrupt response, while the low-power modes support battery-operated designs. Architecturally, the Cortex-M3 Harvard-structure core separates instruction and data buses, sustaining 1.25 DMIPS/MHz performance. Flash memory is accessible in a single wait state at full speed, and the peripheral bus structure allows independent peripheral clocking for aggressive power gating. Typical applications include industrial automation nodes, consumer appliance control boards, sensor hubs, metering front ends, and low-cost connectivity accessories. The 48 MHz ceiling and rich peripheral set fit control loops and human-interface tasks without paying for higher-speed cores. For design, budget the 32 KB flash carefully - application code plus bootloader must fit within the single erase-page management scheme, and pin-count planning should reserve pins for SWD programming and debug. This page synthesizes verified distributor pricing, drop-in family alternatives, and practical design notes not found on the manufacturer datasheet page alone.

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ATSAM3N0AA-MUR - 48MHz ARM Cortex-M3 MCU 32KB Flash | Microchip
ATSAM3N0AA-MUR

ATSAM3N0AA-MUR - 48MHz ARM Cortex-M3 MCU 32KB Flash | Microchip

The Microchip Technology ATSAM3N0AA-MUR is a 32-bit ARM Cortex-M3 microcontroller operating at up to 48 MHz, integrating 32 KB of FLASH program memory and 8 KB of SRAM in a 48-pin QFN (7x7 mm) package with exposed pad, qualified for industrial temperature ranges. A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the lowest tier of the embedded processing hierarchy: MCU -> embedded processor -> application processor -> system-on-chip. MCUs execute real-time control tasks in power-sensitive and cost-sensitive designs where a full application processor is unnecessary. The SAM3N series belongs to Microchip (formerly Atmel) ARM-based flash MCU portfolio, which also includes the SAM4N, SAM L, and megaAVR families. Key features of the ATSAM3N0AA-MUR include the ARM Cortex-M3 core with Thumb-2 instruction set, integrated DMA controller for low-CPU-overhead data transfers, PWM channels for motor and lighting control, and a watchdog timer (WDT) for system reliability. The nested vectored interrupt controller (NVIC) provides deterministic low-latency interrupt response, while the low-power modes support battery-operated designs. Architecturally, the Cortex-M3 Harvard-structure core separates instruction and data buses, sustaining 1.25 DMIPS/MHz performance. Flash memory is accessible in a single wait state at full speed, and the peripheral bus structure allows independent peripheral clocking for aggressive power gating. Typical applications include industrial automation nodes, consumer appliance control boards, sensor hubs, metering front ends, and low-cost connectivity accessories. The 48 MHz ceiling and rich peripheral set fit control loops and human-interface tasks without paying for higher-speed cores. For design, budget the 32 KB flash carefully - application code plus bootloader must fit within the single erase-page management scheme, and pin-count planning should reserve pins for SWD programming and debug. This page synthesizes verified distributor pricing, drop-in family alternatives, and practical design notes not found on the manufacturer datasheet page alone.

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ATSAM3N0BA-MU - 48MHz Cortex-M3 MCU 32KB Flash | Microchip
ATSAM3N0BA-MU

ATSAM3N0BA-MU - 48MHz Cortex-M3 MCU 32KB Flash | Microchip

The Microchip Technology ATSAM3N0BA-MU is a 32-bit ARM Cortex-M3 flash microcontroller running at 48 MHz with 32 KB FLASH program memory and 8 KB SRAM, housed in a 64-pin QFN (9x9 mm) surface-mount package from the SAM3N series. A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, non-volatile memory for program storage, SRAM for data, and a rich set of peripherals onto one chip. The ARM Cortex-M3 is a 32-bit RISC processor core designed for cost-sensitive embedded applications, positioned above simple 8-bit PIC cores and below high-performance Cortex-M4/M7 cores within the embedded hierarchy. The SAM3N series is Microchip's (formerly Atmel's) entry-level, general-purpose Cortex-M3 family without USB or external bus interfaces, targeting cost- and power-sensitive designs. Key features of the ATSAM3N0BA-MU include the Cortex-M3 revision 2.0 core with Thumb-2 instruction set, a 24-bit SysTick counter, and a Nested Vector Interrupt Controller (NVIC) for deterministic interrupt handling. The device operates from a single 1.62V to 3.6V supply and is specified for industrial temperature environments. Per the verified data, the part is graded industrial and supplied in a green, RoHS-compliant QFN package on tape and reel. The SAM3N series is explicitly pin-to-pin compatible with the legacy SAM7S (48- and 64-pin versions) and the SAM3S series (48- and 64-pin versions), enabling straightforward migration within the Atmel/Microchip ARM portfolio. This footprint compatibility is a major advantage for designs upgrading from ARM7TDMI-based SAM7S parts to the more efficient Cortex-M3. Typical applications include industrial control panels, consumer appliance interfaces, sensor aggregation nodes, motor control auxiliaries, and general-purpose embedded controllers where 48 MHz performance and 32 KB flash are sufficient and USB connectivity is not required. A key design consideration is memory margin: with only 32 KB flash and 8 KB SRAM, firmware size should be budgeted carefully; if growth is expected, pin-compatible SAM3N1/SAM3N2 variants with larger flash offer a no-PCB-change upgrade path. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ATSAM3N0BA-MUR - 32-bit ARM Cortex-M3 MCU 48MHz 32KB | Microchip
ATSAM3N0BA-MUR

ATSAM3N0BA-MUR - 32-bit ARM Cortex-M3 MCU 48MHz 32KB | Microchip

The Microchip Technology ATSAM3N0BA-MUR is a 32-bit ARM Cortex-M3 microcontroller from the SAM3N series, operating at up to 48 MHz with 32KB of FLASH program memory and 8KB of SRAM, housed in a 64-pin QFN (9x9 mm) package. A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals, serving as the computational heart of embedded systems. Within the product hierarchy, the ARM Cortex-M3 core places the SAM3N in the 32-bit embedded microcontroller family, sitting above 8-bit MCUs in performance while consuming less power than higher-performance Cortex-M4 parts. The SAM3N family targets cost-sensitive, high-volume applications where integration and price dominate selection. Key features of the ATSAM3N0BA include a single-core Cortex-M3 RISC processor running at 48 MHz, 32KB of embedded FLASH, 8KB of SRAM, and connectivity peripherals including I2C (TWI), SPI, UART/USART, and IrDA. The device operates from a 1.8V to 3.3V supply and is rated for industrial temperature environments, per the Mouser listing (QFN, GREEN, IND TEMP, MRL A). Architecturally, the Cortex-M3 core features a 3-stage pipeline, Harvard bus structure, and a nested vectored interrupt controller (NVIC), enabling deterministic low-latency interrupt handling. The SAM3N0B integrates a power management controller with multiple sleep and wait modes, allowing designers to trade throughput for microamp-level standby current in battery-powered designs. Typical applications include industrial sensors and control nodes, consumer appliance interfaces, and building automation or metering front-ends. The rich UART/SPI/I2C connectivity and low pin count cost profile make it a strong fit for communication bridges and peripheral controllers. A key design consideration: the datasheet is published by Microchip (2018 revision referenced by FindIC), and the SAM3N series is pin-to-pin compatible with the SAM3S series, giving upgrade paths to parts with more FLASH and USB if requirements grow. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ATSAM3N0CA-AU - ARM Cortex-M3 MCU 48MHz 32KB Flash | Microchip
ATSAM3N0CA-AU

ATSAM3N0CA-AU - ARM Cortex-M3 MCU 48MHz 32KB Flash | Microchip

The Microchip Technology ATSAM3N0CA-AU is a 32-bit ARM Cortex-M3 flash microcontroller running at up to 48 MHz with 32KB (32K x 8) flash memory, 8KB SRAM, and a 100-pin LQFP (14 x 14 mm) package in the industrial temperature range of -40C to +85C. A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the lowest tier of the embedded processing hierarchy (MCU -> embedded processor -> application processor -> SoC). The SAM3N family belongs to Microchip's (formerly Atmel) ARM-based flash MCU portfolio, positioned for cost-sensitive, high-volume designs that still require 32-bit performance. Key features include the ARM Cortex-M3 revision 2.0 core with Thumb-2 instruction set, a Nested Vector Interrupt Controller (NVIC), and a 24-bit SysTick timer. The device integrates 16 channels of 10-bit ADC (440 ksps), one 10-bit DAC, and supply operation from 1.62V to 3.6V. Peripherals such as USART, SPI, TWI (I2C), PWM, and a Real-Time Clock support typical embedded connectivity and control tasks. Architecturally, the SAM3N series achieves high EMI tolerance and low power consumption, with multiple sleep modes and a VDDBU domain for RTC/backup operation. The flash-based program memory supports In-System Programming (ISP) via UART, and the core integrates a single-cycle multiply for DSP-style arithmetic. Typical applications include industrial control nodes, building automation, metering front-ends leveraging the 16-channel ADC, consumer appliance control boards, and cost-optimized Human-Machine Interface systems where the migration path to higher-memory SAM3S parts matters. Design consideration: the SAM3N series is pin-to-pin compatible with SAM7S and SAM3S devices, so designers should plan PCB footprints with memory upgrades in mind and verify ADC channel mapping when migrating. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.

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ATSAM3N0CA-AUR - 48MHz Cortex-M3 MCU 32KB Flash | Microchip
ATSAM3N0CA-AUR

ATSAM3N0CA-AUR - 48MHz Cortex-M3 MCU 32KB Flash | Microchip

The Microchip Technology ATSAM3N0CA-AUR is a 32-bit ARM Cortex-M3 microcontroller running at 48 MHz with 32 KB FLASH program memory and 8 KB SRAM, housed in a 100-pin LQFP (14x14 mm) surface-mount package. It operates from a 1.62V to 3.6V supply (1.8V/2.5V/3V/3.3V rails) and integrates a 16-channel 10-bit ADC plus a 10-bit DAC. A microcontroller (MCU) is a single-chip computer that combines a processor core, memory, and peripherals on one die, sitting at the heart of embedded systems. Within the power-management hierarchy of a product, an MCU such as the SAM3N0C executes firmware, manages sensors and actuators, and handles communication. The SAM3N series belongs to Microchip's (formerly Atmel) ARM-based SAM family, positioned as a cost-optimized, low-power line for high-volume applications. Key features include the high-performance 32-bit Cortex-M3 RISC core with nested vectored interrupt controller, 32 KB of single-cycle flash with a page-erase architecture, and low power consumption suited to battery-operated designs. Peripherals include USART/UART serial ports, two-wire interface (TWI/I2C), SPI, timers/counters, PWM channels, and the 16-channel 10-bit ADC with 10-bit DAC, reducing external component count. Technically, the SAM3N0C leverages the ARMv7-M architecture with Thumb-2 instruction set, delivering efficient code density and deterministic interrupt latency. The flash accelerator keeps the 48 MHz core fed from wait-state-limited flash, while the multi-layer bus matrix (AHB-APB bridge) allows peripheral access without stalling the core. Typical applications include industrial control boards, consumer appliances, metering products, and sensor interfaces where the 16-channel ADC and rich serial connectivity are exploited at aggressive cost targets. A key design consideration: the SAM3N series is pin-to-pin compatible with the SAM3S series, giving designers a straightforward flash-upgrade or cost-down path on an unchanged PCB. This page synthesizes distributor pricing, drop-in alternatives, pinout guidance, and practical design notes not found in the manufacturer datasheet.

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ATSAM3N0CA-CU - ARM Cortex-M3 48MHz MCU 32KB Flash | Microchip
ATSAM3N0CA-CU

ATSAM3N0CA-CU - ARM Cortex-M3 48MHz MCU 32KB Flash | Microchip

The Microchip Technology ATSAM3N0CA-CU is a 32-bit ARM Cortex-M3 flash microcontroller running at up to 48 MHz with 32KB Flash program memory and 8KB SRAM, housed in a 100-ball TFBGA (9x9 mm) package. Operating from a 1.62V to 3.6V supply (1.8V/2.5V/3.3V typical rails), it belongs to the SAM3N series of entry-level, general-purpose MCUs. A flash microcontroller (MCU) is a single-chip embedded processor that integrates a CPU core, non-volatile program memory, SRAM data memory, and a rich set of peripherals onto one die. MCUs sit at the device level of the embedded-system hierarchy: microcontroller -> embedded processor -> system-on-chip, and they directly drive sensors, actuators, and communication links in end equipment. Key features of the ATSAM3N0CA-CU include the ARM Cortex-M3 revision 2.0 core with Thumb-2 instruction set, a 24-bit SysTick counter, and a nested vector interrupt controller (NVIC). Peripherals and clocking support deterministic real-time behavior, while the green, halogen-free, RoHS-compliant TFBGA package conserves board area in dense layouts. The SAM3N series is pin-to-pin compatible with the legacy SAM7S (48- and 64-pin versions) and with the SAM3S series (48-, 64- and 100-pin versions), enabling firmware and board reuse across migration paths. Microchip supports the family with a complete set of software libraries, project examples, and development tools, shortening design cycles. Typical applications include consumer appliances, industrial sensing nodes, metering front ends, and PC peripherals where a balance of 48 MHz performance, low cost, and compact 100-ball packaging is required. Design consideration: the 9x9 mm TFBGA requires controlled-impedance PCB fan-out and reflow assembly; verify your CMOS process capability and plan power decoupling on all VDD/VDDIO ball pairs before layout. This page synthesizes distributor pricing context, drop-in same-family alternatives, and practical design notes not consolidated in the manufacturer datasheet.

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ATSAM3N1AA-AU - 32-bit ARM Cortex-M3 MCU 48MHz | Microchip
ATSAM3N1AA-AU

ATSAM3N1AA-AU - 32-bit ARM Cortex-M3 MCU 48MHz | Microchip

The Microchip Technology ATSAM3N1AA-AU is a 32-bit ARM Cortex-M3 flash microcontroller running at up to 48 MHz, with 64KB of FLASH program memory, 8KB of SRAM, and 47 general-purpose I/O lines, housed in a 48-pin LQFP (7x7 mm) package. A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the lowest tier of the embedded computing hierarchy: MCU -> embedded processor -> microprocessor-based system. The ATSAM3N1AA-AU belongs to Microchip (formerly Atmel) SMART ARM-based MCU family, sitting within the SAM3N series of cost-optimized Cortex-M3 devices. Key features include the ARM Cortex-M3 revision 2.0 core executing Thumb-2 instructions, a 24-bit SysTick counter, and a Nested Vector Interrupt Controller (NVIC) for deterministic interrupt handling. The device operates from a 1.8V to 3.3V supply and uses an internal oscillator, reducing external component count and BOM cost. Program memory is 64KB (64K x 8) of embedded FLASH with 8KB (8K x 8) of SRAM for data and stack. Architecturally, the SAM3N series is the migration path from the SAM3S series for applications requiring reduced BOM cost, and it is pin-to-pin compatible with the SAM3S series. This allows designers to reuse PCB layouts and firmware across family members while scaling memory and peripherals. The aggressive price point and high integration push its scope into cost-sensitive, high-volume products. Typical applications include industrial control panels, consumer appliances, metering and sensor hubs, and building automation nodes where 32-bit performance is needed at 8-bit pricing. When designing with this part, budget the 8KB SRAM carefully for stack and buffers, and leverage the internal oscillator to eliminate crystals in cost-driven designs. The 47 I/O lines cover most mid-complexity embedded needs. This page synthesizes distributor pricing, drop-in alternatives, comparison data, and practical design notes not found in the manufacturer datasheet alone. Pricing references are as of 2026-09-19.

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