ATSAM4S4BA-AN - 120MHz Cortex-M4 256KB MCU | Microchip
MPN: ATSAM4S4BA-AN ✓ Hoạt độngATSAM4S4BA-AN Tóm tắt
A microcontroller is a semiconductor that integrates a processor core, nonvolatile program memory, volatile data memory, peripherals, and I/O in one device. The ATSAM4S4BA-AN belongs to the SAM4S family, where the Arm Cortex-M4 core provides 32-bit instruction execution while integrated peripherals reduce the component count required for an embedded system. In system terminology, it is a microcontroller within the broader category of embedded processors and semiconductors.
Its headline characteristics are a 120MHz operating frequency, 256KB flash memory, 64KB RAM, and a 64-pin LQFP package. Flash retains firmware without continuous power, while RAM supports working data, stack operations, and communication buffers. The stated 1.2V to 3.3V operating range permits integration with common low-voltage embedded systems, while the industrial-temperature designation supports designs expected to operate outside consumer-temperature environments.
The Arm Cortex-M4 architecture is suitable for interrupt-driven control and real-time peripheral management. At 120MHz, the processor provides substantially more instruction throughput than lower-clock Cortex-M devices, although actual response time depends on interrupt latency, peripheral configuration, firmware architecture, and memory access patterns. The 64KB RAM should be evaluated carefully for graphics, large protocol buffers, or multi-stage data processing rather than assuming that the flash capacity can substitute for working memory.
Typical uses include industrial automation modules, sensor-hub controllers, communication equipment, embedded gateways, and compact control boards. In a sensor hub, the microcontroller can acquire measurements, filter data, apply protocol conversion, and manage local status indicators. In industrial equipment, its operating voltage, industrial-temperature designation, and integration level can reduce the need for separate processor and support devices.
Designers should verify the exact pin assignments, exposed support circuitry, clock requirements, decoupling requirements, and programming configuration in the Microchip ATSAM4S4BA documentation before layout. The 64-pin LQFP is easy to inspect and solder, but careful power and ground layout remains necessary for stable operation. Production designs should also confirm peripheral assignments, package dimensions, and timing requirements against the current manufacturer documentation.
This page consolidates the verified manufacturer and distributor information for the ATSAM4S4BA-AN, distinguishes compatible same-package options, summarizes practical selection considerations, and explicitly identifies details that remain unavailable rather than presenting inferred specifications as confirmed facts.
Bộ thay thế dễ dàng lắp đặt cho ATSAM4S4BA-AN — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ATSAM4S4BA-AN (cùng hình factor và footprint) — khác nhau ở Package, Series, Architecture, RoHS Status, SRAM.
ATSAM4S4BA-AU
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Xem tài liệu →ATSAM4S4BA-AN Tỷ lệ tối đa & tính chất điện
| Product Type | 32-bit ARM Cortex-M4 microcontroller |
| Processor Core | Arm Cortex-M4 |
| Maximum CPU Frequency | 120 MHz |
| Program Memory | 256 KB flash |
| Data Memory | 64 KB RAM |
| Operating Voltage | 1.2 V to 3.3 V |
| Hộp | 64-pin LQFP |
| Temperature Grade | Industrial temperature |
| Environmental Package Classification | Green |
| Kiểu lắp đặt | Surface mount |
| Architecture | ARM Cortex-M4 RISC |
| Bit Width | 32 bit |
| Manufacturer | Microchip Technology |
| Series | SAM4S |
Hướng dẫn cấu hình chân ATSAM4S4BA-AN green
Cấu hình chân cho ATSAM4S4BA-AN (green gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho ATSAM4S4BA-AN.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ATSAM4S4BA-AN phù hợp cho 6 Áp dụngs: Industrial Automation Controller, Sensor Hub and Data Concentrator, Communication Equipment, Compact Embedded Gateway, Test and Measurement Front End, Motor and Motion Control.
Industrial Automation Controller
The ATSAM4S4BA-AN fits an industrial automation controller that coordinates digital inputs, outputs, and real-time system tasks. Its 120MHz Arm Cortex-M4 core provides useful control-loop throughput, while 256KB of flash stores application firmware, configuration data, and diagnostic routines. The 64KB of RAM supports working variables, interrupt context, and moderate communication buffers. Its verified 1.2V to 3.3V operating range and industrial-temperature designation align with low-voltage industrial embedded systems. The 64-pin LQFP also exposes more pins than a small leadless package, simplifying access to peripheral signals on a mixed-signal control board.
Được đề xuất
Sensor Hub and Data Concentrator
The ATSAM4S4BA-AN is appropriate for a sensor hub that acquires measurements, performs local filtering, and forwards information over a serial or network link. Its 120MHz processor supports interrupt-driven sampling and protocol handling, while 256KB of flash can retain firmware and calibration tables. The 64KB of RAM provides space for packet assembly and time-series buffering, although high-rate continuous logging may require external memory. Operation from 1.2V to 3.3V supports integration with low-power sensors and communication transceivers, and the industrial-temperature classification supports equipment deployed outside controlled consumer environments.
Được đề xuất
Communication Equipment
The ATSAM4S4BA-AN can serve as the embedded controller in a communication module requiring deterministic peripheral handling and local protocol management. The 120MHz Cortex-M4 core provides enough instruction throughput to service interrupts, frame processing, and supervisory logic, while the 256KB flash and 64KB RAM divide clearly between persistent firmware and transient buffers. The 1.2V to 3.3V supply range allows use with modern low-voltage interface devices, and the 64-pin LQFP provides a practical route for power, clock, serial, and debug signals. Firmware should be tested for timing behavior when communication traffic and control tasks share the processor.
Được đề xuất
Compact Embedded Gateway
The ATSAM4S4BA-AN is suitable for a compact embedded gateway that translates between local sensor or actuator connections and an upstream network. Its 256KB of flash accommodates gateway firmware, protocol stacks, and configuration, while 64KB of RAM supports state machines and short message queues. The 120MHz Cortex-M4 processor allows the device to validate and package data without relying on a higher-power host processor. Its industrial-temperature designation and 1.2V to 3.3V operating range support robust embedded networking equipment, while the 64-pin LQFP simplifies prototype assembly and inspection. Security, memory, and peripheral requirements must be confirmed for the final gateway architecture.
Được đề xuất
Test and Measurement Front End
The ATSAM4S4BA-AN can implement the control and acquisition logic of a compact measurement front end. Its 120MHz Arm Cortex-M4 core supports timed sampling, control sequencing, and data processing, while 256KB of flash holds configuration, calibration, and firmware. The 64KB of RAM can support sample buffers and communication staging, but waveform records requiring more memory should use external storage. The 1.2V to 3.3V operating range supports low-voltage analog front ends, and the 64-pin LQFP gives straightforward access to clock, debug, communications, and discrete I/O. Exact ADC and timer capabilities must be confirmed in the device documentation before final design selection.
Được đề xuất
Motor and Motion Control
The ATSAM4S4BA-AN can control a compact motor or motion-control subsystem when its exact timers and communication peripherals match the selected motor interface. The 120MHz processor provides responsive execution for motion algorithms, sequencing, and fault handling, while 256KB flash supports control code and parameter sets. Its 64KB RAM can hold trajectory and telemetry buffers for moderate workloads. The 1.2V to 3.3V range is compatible with many modern power-control ecosystems, and the 64-pin LQFP provides the pin count needed for multiple control and status signals. Developers must verify timer channels, fault inputs, PWM resolution, and package-level routing before committing to a drive topology.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM4S4BA-AN — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ATSAM4S4BA-AU | ATSAM3S4BA-AU |
|---|---|---|---|
| Package | 64-pin LQFP | 64-pin LQFP | 64-pin LQFP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Unit Price at Quantity 1 | Quotation required as of 2026-10-30 | Quotation required as of 2026-10-30 | Quotation required as of 2026-10-30 |
Bảo phân biệt quan trọng
- Highest verified processor frequency in the compared set (vsATSAM3S4BA-AU)
- Direct same-device-ordering alternative (vsATSAM4S4BA-AU)
- Verified industrial-temperature designation (vsATSAM4S4BA-AU)
Ghi chú thiết kế
Place the ATSAM4S4BA-AN close to the supporting clock, storage, and interface circuitry, and route sensitive communications away from switching nodes. The verified data confirms a 64-pin LQFP format but does not provide the complete pin table or recommended land pattern. Before fabrication, use the current Microchip ATSAM4S4BA package drawing and schematic guidance to confirm every signal, power pin, and exposed support component. Do not reconstruct the footprint solely from the generic LQFP-64 library drawing.
Design the 1.2V to 3.3V supply network around the exact internal regulator and I/O configuration documented for ATSAM4S4BA. The verified specification confirms the voltage range but does not provide current limits, capacitor requirements, or absolute maximum ratings. Check those values in the manufacturer datasheet, specify local decoupling using the documented values, and measure startup and load-transient behavior on the assembled board. Avoid assuming that the package pin count alone guarantees adequate power distribution.
Reserve clean routing for the MCU clock, reset, debug, and programming interfaces, and keep return paths continuous. If the design uses external serial flash, Ethernet, RS-485, or high-speed digital interfaces, follow the selected companion device's layout guidance and keep switching-regulator loops compact. The available verified records do not specify ATSAM4S4BA pin functions, so the final schematic and PCB review must use manufacturer pin assignments rather than family-level assumptions.
Do not treat a similar SAM3S, SAM4N, SAM4S, or SAM7S ordering code as interchangeable solely because it has a similar package. The Microchip SAM4S family document supports stated pin-to-pin relationships, but firmware can still be affected by differences in clock setup, peripheral availability, interrupt vectors, and memory maps. Build a compatibility matrix covering supply voltage, package pins, SRAM, flash, timers, communications, debug support, and boot behavior before substituting any alternative.
Thông tin tuân thủ
The verified product records identify ATSAM4S4BA-AN as green and industrial temperature, but they do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred from the package description.
