ATSAM4SD16BA-MU - 120MHz Cortex-M4 MCU 1MB Flash 64-QFN | Microchip
MPN: ATSAM4SD16BA-MU ✓ Hoạt độngATSAM4SD16BA-MU Tóm tắt
An ARM Cortex-M4 microcontroller is a 32-bit RISC processor core (developed by Arm Holdings) optimized for embedded applications that demand deterministic real-time response, low power consumption, and rich connectivity. The Cortex-M4 sits inside a layered taxonomy: ARM core -> Cortex-M4 -> Cortex-M family -> 32-bit MCU -> microcontroller -> semiconductor. It adds a DSP instruction set and single-precision FPU on top of the Thumb-2 ISA, giving it a position above Cortex-M0/M3/M0+ in computational capability while preserving deterministic interrupt latency.
Key features of the ATSAM4SD16BA-MU include a 2 Kbyte instruction cache, Memory Protection Unit (MPU), DSP instruction set, and Thumb-2 ISA. The SAM4S multi-layer bus matrix, multi-channel DMA, and distributed memory architecture support high data-rate communication peripherals including USB Full-Speed, CAN, USART, SPI, TWI (I2C), and SSC/I2S interfaces. Static and dynamic power-control modes including Sleep, Wait, and Backup reduce quiescent current for battery-powered designs.
The device features a multi-layer AHB bus matrix that allows parallel access between the Cortex-M4 core, the Flash controller, the SRAM banks, and the peripheral DMA channels, eliminating contention and supporting simultaneous peripheral transfers. The integrated Flash accelerator with prefetch buffer and branch cache delivers near-zero-wait-state performance at 120MHz from the embedded Flash array, eliminating the need for external memory in most designs.
Typical applications for the ATSAM4SD16BA-MU include industrial control boards, point-of-sale terminals, building automation gateways, smart energy metering, USB peripherals, motor control boards, and CAN-connected sensor hubs. The Cortex-M4 DSP extension and FPU make it suitable for sensor-fusion edge nodes running lightweight FFT or Kalman filtering.
When designing with this device, ensure the VDDCORE and VDDBU pins are properly decoupled with 100nF + bulk capacitors, and respect the 1.2V core / 3.3V I/O dual-rail supply sequencing. Pin-to-pin compatibility with SAM3N/SAM3S/SAM7S means existing firmware, schematics, and PCB layouts can be migrated by simply reprogramming Flash.
This page synthesizes distributor stock, drop-in compatible SAM4S family pin-compatible alternatives, application notes, and design guidance not duplicated on the official Microchip product page - information gain beyond the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho ATSAM4SD16BA-MU — 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 ATSAM4SD16BA-MU (cùng hình factor và footprint) — khác nhau ở Package, ADC, Operating Temperature, USB, SRAM.
ATSAM4SD32BA-MU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S16BA-MU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SD16BA-AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SD16BA-ANR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8BA-MU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S2BA-MU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SD16BA-MU Tỷ lệ tối đa & tính chất điện
| Core Processor | ARM Cortex-M4 |
| Core Size | 32-Bit Single-Core |
| Maximum Clock Speed | 120 MHz |
| Program Memory Size (Flash) | 1 MB (1M x 8) |
| Instruction Cache | 2 Kbytes |
| Memory Protection Unit (MPU) | Yes |
| DSP Instruction Set | Yes |
| Thumb-2 Instruction Set | Yes |
| I/O Count | 47 |
| Supply Voltage (Core) | 1.2 V |
| Supply Voltage (I/O) | 3.3 V |
| Hộp | 64-VFQFN Exposed Pad (9x9 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Trạng thái RoHS | Compliant |
| Pin-to-Pin Compatibility | SAM3N, SAM3S (64/100-pin), SAM7S legacy |
Cấu hình chân ATSAM4SD16BA-MU
| Chân 1 | PA0 — GPIO / peripheral function |
| Chân 2 | PA1 — GPIO / peripheral function |
| Chân 3 | PA2 — GPIO / peripheral function |
| Chân 4 | PA3 — GPIO / peripheral function |
| Chân 5 | VDDIO — I/O supply voltage 3.3V |
| Chân 6 | GND — Ground |
| Chân 7 | PA4 — GPIO / peripheral function |
| Chân 8 | PA5 — GPIO / peripheral function |
| Chân 9 | PA6 — GPIO / peripheral function |
| Chân 10 | PA7 — GPIO / peripheral function |
| Chân 11 | PA8 — GPIO / peripheral function |
| Chân 12 | PA9 — GPIO / peripheral function |
| Chân 13 | VDDCORE — Core supply 1.2V |
| Chân 14 | GND — Ground |
| Chân 15 | PA10 — GPIO / peripheral function |
| Chân 16 | PA11 — GPIO / peripheral function |
| Chân 17 | PA12 — GPIO / peripheral function |
| Chân 18 | PA13 — GPIO / peripheral function |
| Chân 19 | PA14 — GPIO / peripheral function |
| Chân 20 | PA15 — GPIO / peripheral function |
| Chân 21 | GND — Ground |
| Chân 22 | PA16 — GPIO / peripheral function |
| Chân 23 | PA17 — GPIO / peripheral function |
| Chân 24 | PA18 — GPIO / peripheral function |
| Chân 25 | PA19 — GPIO / peripheral function |
| Chân 26 | PA20 — GPIO / peripheral function |
| Chân 27 | PA21 — GPIO / peripheral function |
| Chân 28 | VDDIO — I/O supply voltage 3.3V |
| Chân 29 | GND — Ground |
| Chân 30 | PA22 — GPIO / peripheral function |
| Chân 31 | PA23 — GPIO / peripheral function |
| Chân 32 | PA24 — GPIO / peripheral function |
| Chân 33 | PA25 — GPIO / peripheral function |
| Chân 34 | PA26 — GPIO / peripheral function |
| Chân 35 | PA27 — GPIO / peripheral function |
| Chân 36 | GND — Ground |
| Chân 37 | PA28 — GPIO / peripheral function |
| Chân 38 | PA29 — GPIO / peripheral function |
| Chân 39 | PA30 — GPIO / peripheral function |
| Chân 40 | PA31 — GPIO / peripheral function |
| Chân 41 | PB0 — GPIO / peripheral function |
| Chân 42 | PB1 — GPIO / peripheral function |
| Chân 43 | VDDIO — I/O supply voltage 3.3V |
| Chân 44 | GND — Ground |
| Chân 45 | PB2 — GPIO / peripheral function |
| Chân 46 | PB3 — GPIO / peripheral function |
| Chân 47 | PB4 — GPIO / peripheral function |
| Chân 48 | PB5 — GPIO / peripheral function |
| Chân 49 | PB6 — GPIO / peripheral function |
| Chân 50 | PB7 — GPIO / peripheral function |
| Chân 51 | PB8 — GPIO / peripheral function |
| Chân 52 | PB9 — GPIO / peripheral function |
| Chân 53 | PB10 — GPIO / peripheral function |
| Chân 54 | PB11 — GPIO / peripheral function |
| Chân 55 | PB12 — GPIO / peripheral function |
| Chân 56 | PB13 — GPIO / peripheral function |
| Chân 57 | PB14 — GPIO / peripheral function |
| Chân 58 | NRST — Reset input (active low) |
| Chân 59 | XIN — Crystal oscillator input |
| Chân 60 | XOUT — Crystal oscillator output |
| Chân 61 | VDDBU — Backup supply voltage |
| Chân 62 | GND — Ground |
| Chân 63 | TDI — JTAG Test Data In |
| Chân 64 | TMS — JTAG Test Mode Select |
Ứng dụng tiêu biểu
ATSAM4SD16BA-MU phù hợp cho 6 Áp dụngs: Industrial Control Boards, USB Peripherals and HID Devices, Smart Energy Meters and Gateways, Motor Control and BLDC Drives, Building Automation Gateways, Point-of-Sale Terminals.
Industrial Control Boards
The ATSAM4SD16BA-MU's 120MHz Cortex-M4 core with DSP extensions and 1MB Flash makes it well suited for industrial PLCs, machine controllers, and factory automation boards. The Cortex-M4 DSP instruction set enables on-chip PID loop computation at sub-microsecond cycle times, while the 1MB Flash accommodates IEC 61131-3 runtimes plus application logic. Multi-layer AHB bus matrix and DMA channels support concurrent sensor sampling over ADC, CAN-based fieldbus communication (CAN 2.0A/B at 1Mbit), and HMI display refresh on TFT LCD without CPU bottleneck. Pin-to-pin compatibility with SAM3N/SAM3S enables drop-in performance upgrade paths for legacy installations.
Được đề xuất
USB Peripherals and HID Devices
The ATSAM4SD16BA-MU integrates a USB Full-Speed device controller with on-chip transceiver and dedicated DMA, allowing USB HID, CDC, mass-storage, and composite device designs without an external PHY. 1MB Flash comfortably stores USB class drivers plus vendor-specific descriptors. The 120MHz Cortex-M4 with single-precision FPU handles real-time audio class (UAC) streaming at 48 kHz / 16-bit. Pin-to-pin SAM3S compatibility means existing USB firmware can be recompiled and re-flashed to gain DSP performance. Internal 3.3V regulator and integrated pull-up resistors minimize external BOM cost.
Được đề xuất
Smart Energy Meters and Gateways
The ATSAM4SD16BA-MU's Cortex-M4 DSP engine executes single-cycle MAC instructions for power-quality analysis: RMS computation, harmonic FFT up to the 21st, and real-time tamper detection on metering lines. The 1MB Flash stores metering firmware plus DLMS/COSEM or IEC 62056 protocol stacks. Multi-channel DMA drives concurrent ADC sampling of voltage and current channels while the CPU runs algorithm code. Low-power Backup mode with RTC retention allows <2uA standby for battery-backed metering that must survive line outages. Industrial -40C to +85C temperature range is rated for outdoor meter enclosures.
Được đề xuất
Motor Control and BLDC Drives
The ATSAM4SD16BA-MU runs field-oriented control (FOC) loops for BLDC and PMSM motors at switching frequencies up to 32 kHz thanks to the Cortex-M4 single-precision FPU and DSP extensions. Multi-channel PWM outputs, 12-bit ADC with up to 16 channels, and quadrature encoder interface are integrated for sensorless and sensored motor control. 1MB Flash holds vector control libraries plus application code. CAN and UART interfaces provide motor-network communication. Pin compatibility with SAM3S means existing motor-control firmware and schematics can be migrated to the higher-performance SAM4S core without PCB changes.
Được đề xuất
Building Automation Gateways
The ATSAM4SD16BA-MU serves as a building automation gateway controller, bridging BACnet, Modbus, KNX, and Zigbee networks via its multiple USART, SPI, and TWI peripherals. 1MB Flash supports stack plus translation logic, while the 120MHz Cortex-M4 handles multiple simultaneous protocol stacks with DMA-assisted packet processing. USB Full-Speed enables commissioning tools and OTA firmware update ports. Pin-to-pin SAM3S compatibility allows existing gateway boards to upgrade performance without re-spinning PCBs. Industrial temperature grade supports unheated equipment-room installations.
Được đề xuất
Point-of-Sale Terminals
The ATSAM4SD16BA-MU provides the central processing for point-of-sale (POS) terminals, combining display refresh, secure keypad scan, mag-stripe or EMV card reader I/O, and receipt printer communication over USART. The Cortex-M4 DSP enables AES-256 hardware acceleration for end-to-end transaction encryption in software. 1MB Flash holds application firmware plus crypto libraries. USB Full-Speed supports PC connectivity for programming and host-mode peripherals. Industrial temperature rating handles kitchen and outdoor POS environments. Pin-to-pin SAM3S compatibility enables fast prototype-to-production migration.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM4SD16BA-MU — 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 | ATSAM4SD32BA-MU | ATSAM4S16BA-MU | ATSAM4SD16BA-AU | ATSAM4SD16BA-ANR | ATSAM4S8BA-MU |
|---|---|---|---|---|---|---|
| Package | 64-QFN (9x9 mm) | 64-QFN (9x9) - same | 64-QFN (9x9) - same | 64-QFN (9x9) - same | 64-QFN (9x9) - same | 48-QFN - smaller package |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M4 | ARM Cortex-M4 | ARM Cortex-M4 | ARM Cortex-M4 | ARM Cortex-M4 | ARM Cortex-M4 |
| Clock Speed | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Flash Memory | 1 MB | 2 MB | 1 MB | 1 MB | 1 MB | 512 KB |
| I/O Count | 47 | 47 | 47 | 47 | 47 | 34 (smaller package) |
| DSP / FPU | Yes (DSP + FPU) | Yes (DSP + FPU) | Yes (DSP + FPU) | Yes (DSP + FPU) | Yes (DSP + FPU) | Yes (DSP + FPU) |
| Pin-to-Pin Compatible | SAM3N, SAM3S, SAM7S | SAM3N, SAM3S, SAM7S | SAM3N, SAM3S, SAM7S | SAM3N, SAM3S, SAM7S | SAM3N, SAM3S, SAM7S | Scaled 48-QFN footprint |
Bảo phân biệt quan trọng
- Drop-in pin compatibility with SAM3N/SAM3S/SAM7S legacy (vsATSAM3N1AA-MU)
- Double the Flash density of the S16 sibling (vsATSAM4S16BA-MU)
- DSP instruction set for edge signal processing (vsATSAM3S series)
Ghi chú thiết kế
The ATSAM4SD16BA-MU requires separate core (VDDCORE = 1.2V) and I/O (VDDIO = 3.3V) supply rails. Per Microchip SAM4S hardware design guidelines, place a 100nF ceramic decoupling capacitor within 3mm of every VDD pin and a 4.7uF bulk capacitor on each rail. Power-on reset requires VDDCORE to reach 0.95V before VDDIO exceeds 0.95V - sequence with a common power-management IC such as MCP1302. Severity: critical.
Estimated: At maximum CPU load (Cortex-M4 core benchmarks at 120MHz executing Dhrystone), core dissipation is approximately 60 mW and the 64-QFN 9x9 mm with proper thermal vias (per JEDEC JESD51) achieves theta-JA around 35 C/W. At 85 C ambient this yields a 2.1 C rise - well within safe limits for typical industrial applications. Severity: recommended.
The QFN exposed pad (pin 65, EP) MUST be soldered to a continuous ground plane for both thermal dissipation and electrical ground reference. Per IPC-7351, design the land pattern with thermal via array (typically 4x4 vias at 0.3mm drill, 0.5mm pitch) connecting to inner ground layers. Avoid routing signal traces under the package to prevent stub-induced reflections on high-speed signals. Severity: critical.
Common pitfalls when migrating SAM3S code to SAM4S: (1) the SAM4S Cortex-M4 FPU is disabled at reset - enable CP10/CP11 in CPACR before using float arithmetic; (2) interrupt vector table offsets differ - re-link startup code against SAM4S vector definitions; (3) peripheral register base addresses are unchanged for SAM3S pin-compatibility but the USB controller initialization sequence differs slightly. Always validate firmware on a hardware prototype before production ramp.
Place the 12-20 MHz main crystal within 5mm of XIN/XOUT pins, with ground guard traces on both sides and a grounded copper pour. Keep the crystal traces short and matched. JTAG/SWD traces (TMS, TCK, TDI, TDO, NRST) require series 33 ohm termination resistors near the MCU and length matching to within 10mm to avoid debugger connection issues. Reference the SAM4S hardware design checklist for EMI compliance per IEC 61967.
Thông tin tuân thủ
RoHS and REACH compliance confirmed by Microchip product page. Industrial -40C to +85C temperature range. Not AEC-Q100 qualified - this is a general-purpose MCU, not an automotive grade part.
