ATSAM4S4BA-AU - 120MHz Cortex-M4 256KB MCU | Microchip
MPN: ATSAM4S4BA-AU ✓ Hoạt độngATSAM4S4BA-AU Tóm tắt
A microcontroller is a programmable system-on-chip that integrates a processor core, nonvolatile program memory, volatile working memory, and peripherals such as serial interfaces, timers, and analog or digital I/O. The ATSAM4S4BA belongs to Microchip's SAM4S family, placing it in the embedded-processing hierarchy of ARM Cortex-M4 MCU, 32-bit microcontroller, embedded controller, and semiconductor.
The verified feature set includes an ARM Cortex-M4 processor operating up to 120 MHz, a Memory Protection Unit, DSP instructions, and the Thumb-2 instruction set. Its 256 KB Flash provides program storage, while 64 KB of SRAM supports data and execution. The Flash is described as embedded and ECC-enabled, with security and lock bits. These characteristics support firmware-heavy control, signal processing, communications, and general industrial applications.
SAM4S devices also feature a dual-bank Flash architecture according to the Microchip product result. Dual-bank support can improve field-update flexibility by permitting organized flash-management strategies, but project engineers must follow the manufacturer's programming and bootloader procedures rather than assume unrestricted simultaneous execution.
Typical uses include industrial automation controllers, connected embedded equipment, motor and motion-control systems, industrial communications, and compact data-acquisition platforms. The 120 MHz Cortex-M4 core and DSP capability are particularly useful when control-loop timing and fixed-point signal processing must coexist with communications firmware.
Design planning should begin with the exact 64-pin LQFP footprint, supported power architecture, clock configuration, and peripheral pin multiplexing. Because the provided web results do not expose a complete pin table or individual I/O specifications, those details must be confirmed in the manufacturer datasheet before PCB routing or firmware resource assignment.
This page consolidates verified distributor specifications, package information, sourcing links, and design-oriented guidance. It also separates confirmed data from unavailable parameters, allowing engineers to assess the ATSAM4S4BA-AU quickly while preserving traceability to the manufacturer and distributor records retrieved on 2026-10-23.
Bộ thay thế dễ dàng lắp đặt cho ATSAM4S4BA-AU — 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-AU (cùng hình factor và footprint) — khác nhau ở Package, Series, Instruction Set, SRAM, Maximum Clock Frequency.
ATSAM4S4BA-UUR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S4BA-AN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S4B-AU
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAM4S4B-AA
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAM4S4BAB-AU
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAM4S4BA-AU Tỷ lệ tối đa & tính chất điện
| Product Type | 32-bit ARM Cortex-M4 microcontroller |
| Maximum Processor Frequency | 120 MHz |
| Processor Core | Arm Cortex-M4 |
| Instruction Set | Thumb-2 |
| DSP Support | DSP instructions |
| Memory Protection Unit | Yes |
| Embedded Flash Memory | 256 KB (256K x 8) |
| SRAM | 64 KB |
| Flash ECC | Embedded ECC |
| Flash Security | Security bit and lock bits |
| Flash Architecture | Dual-bank Flash |
| Supply Reference | 1.2 V and 3.3 V |
| Hộp | 64-pin LQFP, 10 x 10 mm |
| Kiểu lắp đặt | Surface mount |
| Series | SAM4S |
| Architecture | 32-bit RISC |
Hướng dẫn cấu hình chân ATSAM4S4BA-AU 64-pin lqfp, 10 x 10 mm
Cấu hình chân cho ATSAM4S4BA-AU (64-pin lqfp, 10 x 10 mm 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-AU.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ATSAM4S4BA-AU phù hợp cho 6 Áp dụngs: Industrial Automation Controller, Motor and Motion Control, Industrial Communications Gateway, Data Acquisition and Sensor Hub, Connected Embedded Equipment, Digital Signal Processing Controller.
Industrial Automation Controller
The ATSAM4S4BA-AU fits an industrial automation controller that must combine deterministic control with communications and local data handling. Its Arm Cortex-M4 core runs up to 120 MHz, while DSP instructions support fixed-point signal-processing tasks and the MPU provides hardware-assisted memory isolation. The 256 KB embedded Flash and 64 KB SRAM provide room for control firmware, parameter tables, diagnostics, and communication stacks. A typical implementation places the MCU between field I/O and an industrial network interface, using timer-based sequencing for actuators and inputs. The engineering trade-off is that the supplied data does not specify the exact temperature grade or peripheral mix, so rugged industrial deployment still requires orderable-part and qualification review.
Được đề xuất
Motor and Motion Control
The ATSAM4S4BA-AU is appropriate for compact motor-control firmware because its Cortex-M4 processor reaches 120 MHz and includes DSP instructions. Those capabilities can support current or speed-loop calculations, PWM sequencing, and supervisory logic within one embedded controller. The 64 KB SRAM allows working buffers and state variables to remain close to the processor, while 256 KB Flash accommodates algorithms and parameter storage. In a motor-control design, the MCU would issue timing references to gate drivers and process feedback through suitable analog and digital interfaces. Exact timer channels, analog limits, and pin assignments must be verified because they are not present in the supplied snippets.
Được đề xuất
Industrial Communications Gateway
The ATSAM4S4BA-AU can serve as the control processor in an industrial communications gateway because its 120 MHz Cortex-M4 core provides headroom for protocol processing alongside local supervisory tasks. The verified 256 KB Flash and 64 KB SRAM are useful for protocol stacks, diagnostics, and buffered traffic, while dual-bank Flash supports organized firmware-maintenance strategies when used according to Microchip's procedures. A practical design could bridge a local sensor bus to Ethernet or a serial uplink, with the MCU validating frames and controlling status indicators. The verified package is a 64-pin LQFP, but physical isolation strategy, transceiver requirements, and exact baud-rate peripherals must be established from the full datasheet.
Được đề xuất
Data Acquisition and Sensor Hub
The ATSAM4S4BA-AU fits a sensor hub that must sample, filter, and package measurements while retaining network or local-logging functions. Its Cortex-M4 core at up to 120 MHz supports DSP instructions useful for filtering and fixed-point transforms, while 64 KB SRAM provides room for sampled data and control state. The 256 KB Flash can hold firmware, calibration constants, and protocol code. In a typical system, analog front ends feed the MCU's verified-to-be-confirmed conversion and timer resources before a communications module transports results. Exact ADC performance, sample-rate limits, channel count, and electrical characteristics are not included in the supplied web data, so acquisition accuracy cannot be finalized from these records alone.
Được đề xuất
Connected Embedded Equipment
The ATSAM4S4BA-AU is useful in connected embedded equipment where one MCU must manage local control, user-facing logic, and a network protocol. The verified 120 MHz Cortex-M4 core and 256 KB Flash provide a capable platform for protocol stacks and application logic, while 64 KB SRAM handles packet buffers and working state. A practical implementation could supervise relays, read local inputs, update a status interface, and forward telemetry through Ethernet. The MPU can separate protected code or data regions when the architecture benefits from isolation. However, cryptographic resources, exact peripheral mix, boot behavior, and package-level connectivity are not specified in the supplied snippets and must be reviewed before security-sensitive deployment.
Được đề xuất
Digital Signal Processing Controller
The ATSAM4S4BA-AU can serve as a dedicated DSP controller because the Arm Cortex-M4 core operates up to 120 MHz and explicitly supports DSP instructions. This combination is suited to fixed-point filtering, control-law evaluation, and signal transformations that must run alongside embedded supervisory logic. The device's 256 KB Flash provides program and coefficient storage, while 64 KB SRAM supports sample buffers and intermediate state. In an implementation, the MCU could process sensor or communications data, update control outputs, and report operating status. The supplied results do not quantify accelerator performance, cache behavior, or analog front-end limits, so actual signal-chain bandwidth must be established through datasheet review and bench validation.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM4S4BA-AU — 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-UU | ATSAM4S4BA-AN | ATSAM4S4B-AU | ATSAM4S4B-AA | ATSAM4S4BAB-AU |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-LQFP (10x10) | 64-LQFP (10x10) | 64-LQFP (10x10) | 64-LQFP (10x10) | 64-LQFP (10x10) | 64-LQFP (10x10) |
Bảo phân biệt quan trọng
- High-performance Cortex-M4 platform (vsATSAM4S4BA-UU)
- Embedded memory and protection features (vsATSAM4S4BA-AN)
- Specified 64-LQFP package (vsATSAM4S4B-AA)
- Broad sourcing visibility (vsATSAM4S4B-AU)
Ghi chú thiết kế
Use the manufacturer's recommended decoupling topology and voltage rails before assigning external components. The verified distributor records mention 1.2 V and 3.3 V references, while the Microchip SAM4S4B family result specifies a 1.62 V to 3.6 V supply. Treat these as distinct kinds of information, not interchangeable operating limits. Place required bulk and high-frequency capacitors at the pins identified in the datasheet, keep return paths short, and verify startup, voltage tolerance, and power-sequencing requirements for every populated rail.
The confirmed mechanical format is a 64-pin LQFP with a 10 x 10 mm body. Before releasing the layout, verify the exact land pattern, pin-1 orientation, lead pitch, courtyard, solder mask, and paste stencil against the official package drawing. Also inspect whether thermal-pad or exposed-pad treatment is required; the supplied snippets do not resolve that detail. Incorrect interpretation of a package-suffix drawing can shift every pad even when the component appears to match by name, so package-specific review is mandatory.
At the verified maximum clock frequency of 120 MHz, route clocks and high-speed interfaces as controlled-impedance signals where applicable. Keep sensitive analog inputs away from switching nodes, provide solid ground-plane continuity, and minimize stubs on memory and communication routes. The supplied results do not specify which alternate functions are available on each LQFP pin, so engineers must build the pin-assignment matrix from the manufacturer datasheet. Reserved pins and peripheral multiplexing should be fixed before placement rather than handled during firmware bring-up.
Do not treat similar SAM4S orderable codes as automatically interchangeable. The suffix may encode package, temperature, packing, or qualification information, and none of the retrieved snippets fully decode every alternative suffix. Confirm the ordering-information table, exact pinout, electrical limits, flash configuration, boot behavior, and packing for ATSAM4S4BA-AU and any proposed replacement. Firmware may also require suffix-specific validation even when the PCB footprint appears unchanged.
Thông tin tuân thủ
The supplied records do not explicitly state compliance or automotive qualification for ATSAM4S4BA-AU. No compliance status was inferred from the distributor's LQFPGREENIND wording or from the New Device Entry lifecycle label.