ATSAM4S4CA-CFU - 120MHz Cortex-M4 MCU, 256KB Flash | Microchip
MPN: ATSAM4S4CA-CFU ✓ Hoạt độngATSAM4S4CA-CFU Tóm tắt
An ARM Cortex-M4 MCU is a 32-bit reduced-instruction-set (RISC) processor core that integrates a CPU, memory, and peripherals on a single chip, serving as the central controller in embedded systems. Within the product hierarchy, the SAM4S sits between entry-level Cortex-M0+ devices and high-performance Cortex-M7 MCUs, and the ATSAM4S4CA-CFU occupies the mid-memory-density tier of the SAM4S family, complemented by larger siblings in the power-management and embedded-control landscape.
Key features include a 120 MHz Cortex-M4 core with single-cycle MAC and hardware FPU support in the family, 256KB flash with page-erase programming, and pin-to-pin compatibility across the SAM4S, SAM4N, SAM3S, SAM3N and SAM7S portfolios, which simplifies migration and footprint reuse. The 100-VFBGA (7x7 mm) ball-grid-array keeps board area minimal for space-constrained industrial designs.
From a technical perspective, the SAM4S series combines scalable performance with memory density and power efficiency. The Cortex-M4 core delivers deterministic real-time response with nested vectored interrupts, and the memory bus architecture sustains full-speed flash execution at 120 MHz with flash accelerator techniques typical of the Atmel/Microchip SMART family.
Typical applications include industrial automation controllers, sensor hubs and data loggers, embedded networking nodes, and consumer portable devices where a compact 100-ball BGA and 256KB flash provide the right balance of cost and capability.
Design consideration: 100-VFBGA packages require microvia or HDI PCB technology; verify your fab capability for 0.8 mm or finer ball pitch before layout, and plan power decoupling on every supply ball pair.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, making it a one-stop reference for the ATSAM4S4CA-CFU.
Bộ thay thế dễ dàng lắp đặt cho ATSAM4S4CA-CFU — 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 ATSAM4S4CA-CFU (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, RoHS Status, Flash Memory, ADC.
ATSAM4S2CA-CFU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S16CA-CFU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S16CA-CU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4N8CA-CFU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CA-CFU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SD32CA-CFU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CA-CFNR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAM4S4CA-CFU Tỷ lệ tối đa & tính chất điện
| Core Processor | ARM Cortex-M4 |
| Core Size | 32-bit, single-core |
| Tần số xung maksimum | 120 MHz |
| Flash Memory Size | 256KB (256K x 8) |
| Package Type | 100-VFBGA (7x7 mm) |
| Package Code | VFBGA, square, ball terminal |
| Number of Terminals | 100 |
| Kiểu lắp đặt | Surface Mount |
| Operating Temperature Grade | Industrial |
| Family | SAM4S (Atmel SMART ARM-based MCU) |
| Environmental Attribute | Green package |
| Moisture Sensitivity Level | MSL A (per FindIC listing: MRL A) |
| Program Memory Type | FLASH |
| Terminal Form | Ball |
| Package Shape | Square |
| Bề rộng đường dữ liệu | 32 bit |
Hướng dẫn cấu hình chân ATSAM4S4CA-CFU square
Cấu hình chân cho ATSAM4S4CA-CFU (square 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 ATSAM4S4CA-CFU.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ATSAM4S4CA-CFU phù hợp cho 6 Áp dụngs: Industrial Automation Controllers, Sensor Hubs and Data Loggers, Embedded Networking Nodes, Portable and Battery-Powered Devices, Motor Control and Power Conversion, Consumer IoT and Smart Home Devices.
Industrial Automation Controllers
The ATSAM4S4CA-CFU suits industrial automation nodes because its 120 MHz ARM Cortex-M4 core provides deterministic real-time response for control loops, while the industrial temperature grade ensures reliability on factory floors. The 256KB flash accommodates protocol stacks such as Modbus or CANopen alongside application firmware. In a typical PLC I/O module, the MCU runs the communication state machine and local control logic, with the Cortex-M4 MAC accelerating PID computations. Compared with slower Cortex-M0+ controllers, the 120 MHz clock closes control loops faster; compared with higher-cost devices, the SAM4S keeps bill-of-materials cost low. Pin-to-pin compatibility across the SAM4S family also lets manufacturers scale flash size per product tier on one PCB.
Được đề xuất
Sensor Hubs and Data Loggers
For battery-powered sensor hubs and data loggers, the ATSAM4S4CA-CFU combines processing performance with power efficiency: the Cortex-M4 architecture executes sampling, filtering and timestamping code quickly, allowing the system to spend more time in low-power sleep modes. The 256KB flash stores logging firmware plus a small file system, and the 100-VFBGA (7x7 mm) package keeps sensor-node PCB area minimal. In practice the MCU reads I2C/SPI sensors, applies digital filtering using the single-cycle MAC, and buffers records to external memory. The family's power-management controller gates clocks to unused peripherals, reducing average current draw - a key metric for multi-year battery deployments in condition-monitoring and environmental sensing applications.
Được đề xuất
Embedded Networking Nodes
Embedded networking endpoints - gateways, protocol converters, and Modbus-to-Ethernet bridges - benefit from the ATSAM4S4CA-CFU's 120 MHz throughput, which sustains packet processing and protocol translation without an external accelerator. The 256KB flash hosts a TCP/IP or fieldbus stack with room to spare, and the single-cycle MAC accelerates checksum computation. In a typical design the MCU manages a UART/SPI/CAN front end and interfaces to an Ethernet MAC/PHY or Wi-Fi module over SPI. The pin-compatible SAM4S portfolio means a higher-flash variant (ATSAM4S16CA-CFU) can be substituted for feature-rich firmware builds without PCB changes, protecting the hardware platform across product variants and field-upgradeable SKUs.
Được đề xuất
Portable and Battery-Powered Devices
Handheld instruments, portable medical accessories, and POS peripherals use the ATSAM4S4CA-CFU where its 100-VFBGA 7x7 mm footprint and integrated peripherals reduce board height and area for slim enclosures. The 120 MHz Cortex-M4 renders menus, runs touch-decode algorithms, and manages secure transactions responsively, while sleep modes stretch battery life between charges. The 256KB flash stores application code plus fonts and localization strings. Designers typically drive an SPI or parallel display, sample a resistive/capacitive touch controller, and manage Li-Ion charging supervision via ADC channels. The industrial temperature rating also qualifies the design for vehicle-mounted or outdoor portable equipment where consumer-grade MCUs would be marginal.
Được đề xuất
Motor Control and Power Conversion
The ATSAM4S4CA-CFU fits digital motor-control subsystems because the Cortex-M4 core's single-cycle multiply-accumulate and deterministic interrupt latency support FOC (field-oriented control) inner loops at the 120 MHz clock. The 256KB flash holds the control firmware plus field-weakening and protection routines. In a typical three-phase BLDC/PMSM drive, the MCU reads current-sense ADC results, executes PI current loops, and updates PWM outputs; the 100-VFBGA package routes dense PWM and analog signals with short traces on HDI boards. The industrial temperature grade suits inverter environments, and the pin-to-pin SAM4S family allows higher-flash parts for units storing multi-protocol communication and diagnostic firmware on the same PCB.
Được đề xuất
Consumer IoT and Smart Home Devices
Smart-home controllers, connected appliances, and IoT edge nodes deploy the ATSAM4S4CA-CFU for its balance of cost (approximately $2-5 in single quantity as of 2026-09-20), performance, and compact 100-VFBGA packaging. The 120 MHz Cortex-M4 runs TLS pre-processing and sensor fusion while offloading radio work to a Wi-Fi/BLE module over UART or SPI. The 256KB flash accommodates the application, a lightweight OTA bootloader, and configuration storage. Designers value the SAM4S pin-compatible roadmap: a shortage of the 256KB part can be bridged with ATSAM4S16CA-CFU (1MB) without requalifying the PCB. The green package aligns with consumer-market environmental requirements across global markets.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM4S4CA-CFU — 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 | ATSAM4S2CA-CFU | ATSAM4S16CA-CFU | ATSAM4N8CA-CFU | ATSAM4SD32CA-CFU |
|---|---|---|---|---|---|
| Package | 100-VFBGA (7x7 mm) | 100-VFBGA (7x7) - same | 100-VFBGA (7x7) - same | 100-VFBGA (7x7) - same | 100-VFBGA (7x7) - same |
| Brand | Microchip Technology (Atmel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M4, 120 MHz | ARM Cortex-M4, 120 MHz | ARM Cortex-M4, 120 MHz | ARM Cortex-M4 (SAM4N), 120 MHz | ARM Cortex-M4, 120 MHz |
| Flash Memory | 256KB | 128KB | 1MB | 512KB | 1MB (dual-bank) |
| Family | SAM4S | SAM4S | SAM4S | SAM4N | SAM4SD (dual-bank) |
| Pin-to-Pin Compatible | Yes (SAM4S/SAM4N/SAM3S/SAM3N/SAM7S) | Yes - direct drop-in | Yes - direct drop-in | Yes - per SAM4S datasheet migration note | Yes - direct drop-in |
| Temperature Grade | Industrial | Industrial | Industrial | Industrial | Industrial |
Bảo phân biệt quan trọng
- Mid-density 256KB flash at the family's lowest cost tier (vsATSAM4S16CA-CFU)
- Double the flash of the entry variant with the same footprint (vsATSAM4S2CA-CFU)
- SAM4S peripheral richness vs SAM4N sibling (vsATSAM4N8CA-CFU)
Ghi chú thiết kế
The 100-VFBGA (7x7 mm) package requires fine-pitch PCB fabrication - typically microvia (HDI) technology with via-in-pad for the dense ball field. Confirm your board house supports the ball pitch escape routing before committing the layout. Assign power and ground ball pairs with local decoupling capacitors (100 nF per supply pair) placed on the layer directly beneath the die. Per the Microchip SAM4S family datasheet, pin-to-pin compatibility with SAM4N/SAM3S/SAM3N/SAM7S devices means the same footprint supports future memory upgrades or cost-downs without re-layout.
Follow the SAM4S family power-supply architecture from the Microchip datasheet: sequence and decouple the core and I/O supply domains per datasheet recommendations, and use the on-chip voltage regulator configuration specified for the 100-VFBGA variant. Add bulk capacitance (4.7-10 uF) near the supply balls plus 100 nF ceramics for high-frequency decoupling. Estimated: total decoupling capacitance should be sized so supply ripple stays within datasheet tolerance at 120 MHz core operation with all peripherals active.
When migrating from other SAM4S variants (e.g., swapping ATSAM4S4CA-CFU for ATSAM4S16CA-CFU or ATSAM4S2CA-CFU), flash size and page-erase parameters change - verify bootloader sector maps and flash programming routines against the specific device's memory map. Also confirm the exact suffix (CFU vs CU vs CFNR) when ordering: these designate ball metallurgy and packaging options and are NOT interchangeable in some procurement/compliance flows. Quote tool matches should always be validated against the Microchip cross-reference search.
Thông tin tuân thủ
Distributor listings describe the part as 'BGA GREEN IND TEMP MRL A', indicating green packaging and industrial temperature grade. Formal RoHS/REACH/halogen certificate copies should be requested from Microchip at order time.
