ATSAM4SA16CA-CU - 120MHz Cortex-M4 MCU 1MB Flash | Microchip
MPN: ATSAM4SA16CA-CU ✓ Hoạt độngATSAM4SA16CA-CU Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (typically Flash), working memory (SRAM), and peripherals such as timers, ADC/DAC, communication controllers, and GPIO. MCUs belong to the embedded systems hierarchy: MCU -> microcontroller -> embedded processor -> semiconductor IC. Cortex-M class MCUs are designed for deterministic interrupt-driven firmware, deterministic interrupt latency, and ultra-low power operation, and they dominate consumer, industrial, and IoT applications due to their energy efficiency and broad toolchain support.
Key features of the ATSAM4SA16CA-CU include the high-performance 120 MHz Cortex-M4 core with DSP extensions, 1 MB on-chip Flash for code and data, 160 KB SRAM, 79 general-purpose I/O lines, and a multilayer bus matrix with multi-channel DMA for high data-rate communication. The peripheral set comprises USB 2.0 Full-Speed, up to four UART/USART, three TWI (I2C), two SPI, one HS-SPI, an EMAC 10/100 Ethernet MAC, PWM, 12-bit ADC, 12-bit DAC, and external bus interface supporting 8-bit data with 24-bit address bus width.
The SAM4S architecture leverages a multi-layer AHB/APB bus matrix that allows simultaneous master access from the CPU, DMA controller, and peripherals, eliminating contention. The peripheral DMA controller (PDC) and dedicated DMA channels feed high-bandwidth interfaces such as Ethernet and HS-SPI without CPU intervention, enabling deterministic real-time response in motor control and communication gateway designs.
Typical applications include industrial automation controllers, building automation gateways, smart energy metering, POS terminals, USB peripherals, motor control (BLDC/PMSM), and embedded connectivity nodes. Pin-to-pin compatibility with SAM3N, SAM3S (64- and 100-pin), and SAM7S legacy products enables smooth upward migration without PCB rework.
When designing with the ATSAM4SA16CA-CU, verify that the 100-pin TFBGA PCB layout uses microvia-compatible stack-up, since the 0.8 mm ball pitch requires advanced assembly processes. Plan decoupling with 100 nF per power pin cluster and a 4.7 uF bulk capacitor per supply rail to suppress switching transients.
This page synthesizes distributor pricing, pin-to-pin compatible drop-in alternatives, and PCB design guidance not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho ATSAM4SA16CA-CU — 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 ATSAM4SA16CA-CU (cùng hình factor và footprint) — khác nhau ở Package, RoHS Status, CAN, ADC, Core.
ATSAM4SA16CA-AUR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ATSAM4SA16CA-ANR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ATSAM4SA16BB-ANR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ATSAM4SA16BA-AUR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ATSAM4S16CB-CFN
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CB-CFN
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CB-CFNR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ATSAM4SA16CA-CU Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M4 with FPU and DSP |
| Bit Width | 32-bit |
| Maximum CPU Frequency | 120 MHz |
| Program Memory (Flash) | 1 MB (1024 KB) |
| SRAM | 160 KB |
| Instruction Cache | 2 KB |
| MPU (Memory Protection Unit) | Yes |
| GPIO Lines | 79 |
| Hộp | 100-pin TFBGA (9x9 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Điện áp cung cấp | 1.2 V core / 3.3 V I/O (typical) |
| External Bus Interface | 8-bit data, 24-bit address |
| ADC Resolution | 12-bit |
| DAC Resolution | 12-bit |
| DMA Channels | Multi-channel DMA + Peripheral DMA Controller (PDC) |
| Communication Interfaces | USB 2.0 FS, EMAC 10/100, 4x USART, 3x TWI, 2x SPI, 1x HS-SPI |
| Instruction Set | Thumb-2, DSP extensions |
| Trạng thái RoHS | Compliant |
| Pin-to-Pin Compatibility | SAM3N, SAM3S (64/100-pin), SAM7S legacy |
Hướng dẫn cấu hình chân ATSAM4SA16CA-CU 100-pin tfbga (9x9 mm)
Cấu hình chân cho ATSAM4SA16CA-CU (100-pin tfbga (9x9 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 ATSAM4SA16CA-CU.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ATSAM4SA16CA-CU phù hợp cho 6 Áp dụngs: Industrial Automation Controllers, USB Peripherals and HID Devices, Smart Energy Meters and Gateways, POS Terminals and Payment Devices, Motor Control (BLDC/PMSM) Drives, Building Automation Gateways.
Industrial Automation Controllers
The ATSAM4SA16CA-CU is well suited for industrial PLC and HMI controllers thanks to its 120 MHz Cortex-M4 with DSP extensions, which provides the computational headroom for PID loops and fieldbus protocol stacks. The 1 MB Flash accommodates full IEC 61131-3 runtime plus user logic, while 160 KB SRAM handles Ethernet and CAN buffering without dropping packets. Industrial-grade -40C to +85C operation plus 79 GPIO support 24V optically-isolated inputs and relay outputs. The peripheral DMA controller (PDC) offloads high-speed communication such as 10/100 Ethernet MAC, allowing deterministic response in multi-axis motion systems.
Được đề xuất
USB Peripherals and HID Devices
The ATSAM4SA16CA-CU integrates USB 2.0 Full-Speed device/host/OTG controllers suitable for barcode scanners, custom HID peripherals, and data loggers. Its 120 MHz Cortex-M4 plus DSP instructions allow on-the-fly data compression, while 1 MB Flash holds USB class drivers and application firmware. The 160 KB SRAM is sufficient for USB endpoint buffering plus protocol state machines. With 79 GPIO and multiple USART/SPI ports, designers can simultaneously support USB plus auxiliary sensors or displays without external bus-expanders.
Được đề xuất
Smart Energy Meters and Gateways
The ATSAM4SA16CA-CU fits single-phase and poly-phase smart electricity meter designs, where 12-bit ADC accuracy and DSP extensions enable real-time power-quality calculations. The integrated 10/100 EMAC supports HAN (Home Area Network) connectivity to AMI concentrators, while the 1 MB Flash stores metrology library plus DLMS/COSEM protocol stack. The multilayer bus matrix and DMA controller handle simultaneous sampling of voltage/current channels without jitter. Industrial -40C to +85C operation tolerates outdoor meter enclosure thermal stress.
Được đề xuất
POS Terminals and Payment Devices
The ATSAM4SA16CA-CU drives POS terminal designs combining secure PIN entry, contactless card readers, and TCP/IP network connectivity. The Cortex-M4 with hardware FPU accelerates RSA and ECC cryptographic operations for payment transaction security, while 1 MB Flash holds firmware plus EMVCo level 2 libraries. USB 2.0 Full-Speed, multiple USART, and SPI ports connect to printers, NFC readers, and secure modules. The 100-pin TFBGA package minimizes PCB footprint for compact handheld POS form factors.
Được đề xuất
Motor Control (BLDC/PMSM) Drives
The ATSAM4SA16CA-CU drives sensorless and sensored BLDC/PMSM motor controllers using its Cortex-M4 DSP extensions for Park/Clarke transforms and field-oriented control (FOC) algorithms. PWM outputs from the motor-control peripheral generate complementary 3-phase gate drive signals with hardware dead-time insertion. 12-bit ADC with multi-channel DMA sampling current and back-EMF inputs simultaneously at high PWM rates. Industrial -40C to +85C and 79 GPIO allow direct connection to gate drivers, Hall sensors, and encoder feedback.
Được đề xuất
Building Automation Gateways
The ATSAM4SA16CA-CU builds BACnet, Modbus, or KNX building automation gateways interfacing HVAC, lighting, and access-control subsystems. Its 10/100 EMAC plus four USART and three TWI (I2C) buses connect to multiple fieldbus segments concurrently, while the 1 MB Flash stores gateway routing tables and web configuration interfaces. The Cortex-M4 at 120 MHz runs the full TCP/IP stack plus TLS/DTLS without external network processors. The 100-pin TFBGA supports compact DIN-rail gateway enclosures with extended -40C to +85C industrial temperature range.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM4SA16CA-CU — 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 | ATSAM4SA16CA-AUR | ATSAM4SA16CA-ANR | ATSAM4SA16BB-ANR | ATSAM4SA16BA-AUR | ATSAM4S16CB-CFN | ATSAM4S8CB-CFN | ATSAM4S8CB-CFNR |
|---|---|---|---|---|---|---|---|---|
| Package | 100-pin TFBGA (9x9 mm) | LQFP-64 | LQFP-64 | LQFP-64 | LQFP-64 | LQFP-100 | LQFP-100 | LQFP-100 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | 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 120 MHz | ARM Cortex-M4 120 MHz | ARM Cortex-M4 120 MHz | ARM Cortex-M4 120 MHz | ARM Cortex-M4 120 MHz |
| Flash | 1 MB | 1 MB | 1 MB | 1 MB | 1 MB | 1 MB | 512 KB | 512 KB |
| SRAM | 160 KB | 160 KB | 160 KB | 160 KB | 160 KB | 160 KB | 128 KB | 128 KB |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| USB 2.0 FS | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Ethernet MAC | 10/100 EMAC | 10/100 EMAC | 10/100 EMAC | 10/100 EMAC | 10/100 EMAC | 10/100 EMAC | 10/100 EMAC | 10/100 EMAC |
| Pin-to-Pin Compatible | Reference (SAM4S family) | No (LQFP-64 vs TFBGA-100) | No (LQFP-64 vs TFBGA-100) | No (LQFP-64 vs TFBGA-100) | No (LQFP-64 vs TFBGA-100) | No (LQFP-100 vs TFBGA-100) | No (LQFP-100 vs TFBGA-100) | No (LQFP-100 vs TFBGA-100) |
Bảo phân biệt quan trọng
- Largest Flash density in SAM4S 100-pin TFBGA family (vsATSAM4S8CB-CFN)
- TFBGA package for compact PCB layouts (vsATSAM4S16CB-CFN)
- Pin-to-pin compatible with SAM3S migration path (vsATSAM4SA16CA-AUR)
Ghi chú thiết kế
The 100-pin TFBGA package uses 0.8 mm ball pitch and requires a PCB stack-up with microvias and 0.4 mm or smaller trace/spacing rules. Estimated: standard 4-layer 1 oz copper FR-4 with 0.2 mm laser-drilled microvias is sufficient for production assembly per IPC-7093 design guidelines. Plan for X-ray inspection during prototyping to verify BGA solder joint quality, since visual inspection of 0.8 mm pitch BGA is impractical.
Place 100 nF X7R ceramic decoupling capacitors within 2 mm of each VDD/VDDIO power pin pair, plus a 4.7 uF bulk capacitor per supply rail. Estimated: with 120 MHz operation and 79 GPIO toggling simultaneously, peak transient current reaches approximately 150 mA, requiring low-impedance power distribution. Use a ground flood on the top layer stitched to the internal ground plane with 0.5 mm via arrays every 5 mm for low inductance return paths.
Verify the silicon revision before firmware development. The ATSAM4SA16CA-CU is revision A silicon, while ATSAM4SA16BA/B is revision B. According to Microchip errata documents, revision A has known issues that revision B corrects, particularly around USB DMA and EMAC operation. Plan for migration to revision B in new designs to avoid field-update risk. Boot pins and JTAG/SWD interfaces require 10 kohm pull-ups on NRST and pull-downs on TST for normal operation.
Keep the 25 MHz external crystal within 5 mm of the XIN/XOUT pins with a continuous ground reference plane underneath. Estimated: trace impedance mismatch or excessive loading capacitance will cause crystal startup failures and frequency drift at temperature extremes. Use guarded routing for the USB DP/DM differential pair with 90 ohm differential impedance and length matching within 150 mil. Place the 33 ohm series termination resistors within 5 mm of the MCU pins.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature range. Not AEC-Q100 qualified - choose SAM V71/V70/SAM E70 automotive variants for AEC-Q100 requirements.