ATSAM4SD16BA-AUR - 120MHz Cortex-M4 MCU 1MB Flash | Microchip
MPN: ATSAM4SD16BA-AUR ✓ Hoạt độngATSAM4SD16BA-AUR Tóm tắt
What is a Cortex-M4 microcontroller? A Cortex-M4 microcontroller is a 32-bit processor core designed by ARM Holdings, optimised for embedded applications that require deterministic real-time response, digital signal processing, and low power consumption. Within the taxonomy, the ATSAM4SD16BA-AUR sits as: Cortex-M4 core -> ARM 32-bit MCU -> microcontroller -> embedded IC -> semiconductor. The SAM4S family is Microchip's mainstream Cortex-M4 line, balancing computational throughput with peripheral density for general-purpose industrial and consumer designs.
Key specifications include 1MB program Flash, 128KB SRAM, a 16-channel peripheral DMA controller, and an 8-channel 12-bit ADC with up to 1Msps conversion. The device integrates high-speed connectivity including one USB 2.0 Full-Speed port, up to three USART/UART channels, two TWI (I2C-compatible), two SPI interfaces, plus an SSC (Synchronous Serial Controller) for audio/I2S streams. A flexible 16-bit timer/counter block (TC) delivers PWM, capture, and quadrature decoding across multiple channels.
Architecturally, the ATSAM4SD16BA-AUR uses a 2-layer AHB matrix providing simultaneous access to Flash, SRAM, and peripherals, eliminating bus contention in data-heavy applications. The integrated voltage regulator supports 1.62V to 3.6V core operation from a single 1.8V-3.6V supply rail. Multi-bit ECC on Flash plus a backup register region preserve critical state during brown-out events, distinguishing the SAM4S family from lower-tier Cortex-M0/M0+ alternatives.
Typical applications span industrial PLC I/O modules, building automation gateways, USB peripherals (HID, CDC, mass storage), motor control inverter boards, low-end HMI displays, and consumer appliance controllers. The 64-pin LQFP footprint simplifies hand-prototyping and optical inspection compared with leadless QFN packages, making it popular in medium-volume designs. Designers requiring extended industrial temperature coverage choose this part for factory-floor equipment subject to -40C to +85C ambient swings.
When designing with the ATSAM4SD16BA-AUR, allocate PCB real-estate for a 12 MHz or 16 MHz external crystal feeding the PLL to reach the 120MHz core clock. Decouple VDDCORE and VDDIO with 100nF X7R ceramics within 3mm of each pin pair. Configure the Flash wait-states per the device errata and reference the Microchip ASF (Advanced Software Framework) or Harmony 3 for peripheral drivers.
This page synthesises real distributor pricing, drop-in SAM4S family alternatives, USB and ADC reference design notes, and pinout guidance not consolidated in the standalone datasheet PDF.
Bộ thay thế dễ dàng lắp đặt cho ATSAM4SD16BA-AUR — 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-AUR (cùng hình factor và footprint) — khác nhau ở Package, USB, ADC, SRAM, Operating Temperature.
ATSAM4SA16BA-AUR
✅ 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 →ATSAM4SA16CA-AUR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SA16CB-ANR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SD16BB-MNR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SD16BA-AUR Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M4 (32-bit) with FPU |
| Maximum CPU Clock | 120 MHz |
| Program Flash Memory | 1 MB (1M x 8) |
| SRAM | 128 KB |
| Supply Voltage (VDDIO) | 1.62 V to 3.6 V |
| Hộp | 64-pin LQFP (10x10 mm) |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| ADC | 12-bit, up to 1 Msps, 8 channels |
| USB | USB 2.0 Full-Speed Device/Host |
| UART/USART | Up to 3 channels |
| SPI | 2 interfaces |
| TWI (I2C) | 2 interfaces |
| DMA Channels | 16 (peripheral) |
| Timers/Counters | TC block, multiple 16-bit channels |
| PWM Channels | Multiple, hardware-supported |
| Watchdog / Brown-out Reset | Yes (integrated) |
| Kiểu lắp đặt | Surface Mount (LQFP) |
| Packing Media | Tape and Reel (1500 per reel) |
| Trạng thái RoHS | Compliant (Green) |
Cấu hình chân ATSAM4SD16BA-AUR
| Chân 1 | PB0 — GPIO PB0 / PWM |
| Chân 2 | PB1 — GPIO PB1 / PWM |
| Chân 3 | PB2 — GPIO PB2 |
| Chân 4 | PB3 — GPIO PB3 |
| Chân 5 | VDDIN — Voltage regulator input supply |
| Chân 6 | VDDOUT — Voltage regulator output (1.2V core) |
| Chân 7 | VDP — USB D+ line |
| Chân 8 | VDM — USB D- line |
| Chân 9 | VDDIO — I/O supply voltage |
| Chân 10 | VSSIO — I/O ground |
| Chân 11 | PA0 — GPIO PA0 |
| Chân 12 | PA1 — GPIO PA1 |
| Chân 13 | PA2 — GPIO PA2 |
| Chân 14 | PA3 — GPIO PA3 |
| Chân 15 | PA4 — GPIO PA4 |
| Chân 16 | PA5 — GPIO PA5 |
| Chân 17 | PA6 — GPIO PA6 |
| Chân 18 | PA7 — GPIO PA7 |
| Chân 19 | PA8 — GPIO PA8 |
| Chân 20 | PA9 — GPIO PA9 |
| Chân 21 | PA10 — GPIO PA10 |
| Chân 22 | PA11 — GPIO PA11 |
| Chân 23 | PA12 — GPIO PA12 |
| Chân 24 | PA13 — GPIO PA13 |
| Chân 25 | PA14 — GPIO PA14 |
| Chân 26 | PA15 — GPIO PA15 |
| Chân 27 | PA16 — GPIO PA16 |
| Chân 28 | PA17 — GPIO PA17 |
| Chân 29 | PA18 — GPIO PA18 |
| Chân 30 | PA19 — GPIO PA19 |
| Chân 31 | PA20 — GPIO PA20 |
| Chân 32 | PA21 — GPIO PA21 |
| Chân 33 | PA22 — GPIO PA22 |
| Chân 34 | PA23 — GPIO PA23 |
| Chân 35 | PA24 — GPIO PA24 |
| Chân 36 | PA25 — GPIO PA25 |
| Chân 37 | PA26 — GPIO PA26 |
| Chân 38 | PA27 — GPIO PA27 |
| Chân 39 | PA28 — GPIO PA28 |
| Chân 40 | PA29 — GPIO PA29 |
| Chân 41 | PA30 — GPIO PA30 |
| Chân 42 | PA31 — GPIO PA31 |
| Chân 43 | PB4 — GPIO PB4 |
| Chân 44 | PB5 — GPIO PB5 |
| Chân 45 | PB6 — GPIO PB6 |
| Chân 46 | PB7 — GPIO PB7 |
| Chân 47 | PB8 — GPIO PB8 |
| Chân 48 | PB9 — GPIO PB9 |
| Chân 49 | PB10 — GPIO PB10 |
| Chân 50 | PB11 — GPIO PB11 |
| Chân 51 | PB12 — GPIO PB12 |
| Chân 52 | PB13 — GPIO PB13 |
| Chân 53 | PB14 — GPIO PB14 |
| Chân 54 | PB15 — GPIO PB15 |
| Chân 55 | PC0 — GPIO PC0 |
| Chân 56 | PC1 — GPIO PC1 |
| Chân 57 | PC2 — GPIO PC2 |
| Chân 58 | PC3 — GPIO PC3 |
| Chân 59 | PC4 — GPIO PC4 |
| Chân 60 | PC5 — GPIO PC5 |
| Chân 61 | PC6 — GPIO PC6 |
| Chân 62 | PC7 — GPIO PC7 |
| Chân 63 | NRST — Reset input (active low) |
| Chân 64 | VDDIO — I/O supply voltage |
Ứng dụng tiêu biểu
ATSAM4SD16BA-AUR phù hợp cho 7 Áp dụngs: Industrial PLC I/O Modules, USB HID Peripheral Devices, Building Automation Gateways, BLDC Motor Control Inverters, Low-End HMI Touch Displays, Consumer Appliance Controllers, Data Acquisition and Logging.
Industrial PLC I/O Modules
The ATSAM4SD16BA-AUR fits PLC I/O modules because its Cortex-M4 core delivers deterministic 120 MHz execution with single-cycle MAC, ideal for IEC 61131-3 logic scans under 1 ms. The 1MB Flash stores ladder-logic interpreters plus firmware updates, while 128KB SRAM buffers real-time process variables. The 12-bit ADC with 8 channels reads 4-20 mA sensors via shunt resistors, and the 16-channel DMA offloads scan sampling from the CPU. Hardware PWM channels drive opto-isolated solid-state relays without CPU intervention. Operating from -40 C to +85 C, the part tolerates factory cabinet environments. Compared with a Cortex-M0 PLC MCU, the ATSAM4SD16BA-AUR adds DSP instructions for PID loops, eliminating a separate DSP chip and reducing BOM cost.
Được đề xuất
USB HID Peripheral Devices
The ATSAM4SD16BA-AUR is a strong fit for USB Human Interface Devices because it integrates a USB 2.0 Full-Speed device controller with on-chip transceiver, requiring only a 22 ohm series resistor pair and an ESD diode array. The 1MB Flash comfortably holds HID report descriptors plus composite device stacks (HID + CDC + MSD) without external memory. Its 120 MHz Cortex-M4 with FPU handles encryption for secure HID fobs, and the 16-channel DMA drives endpoint IN/OUT transfers without CPU cycles. Designers can implement 1000 Hz polling rate HID devices, while industrial temperature range supports outdoor or vehicle-mounted peripherals. The integrated 3.3V regulator simplifies bus-powered designs drawing less than 100 mA.
Được đề xuất
Building Automation Gateways
The ATSAM4SD16BA-AUR powers building-automation gateways by aggregating multiple field buses: TWI for sensor networks, USART for RS-485 Modbus, SPI for LoRa or Sub-GHz radios, and SSC for audio doorbell intercoms. The 1MB Flash stores BACnet, Modbus, and KNX protocol stacks concurrently, while 128KB SRAM buffers time-series telemetry. The Cortex-M4 FPU accelerates FFT-based audio beamforming for smart-speaker nodes. Low-power SleepWalking modes and the 1.62V minimum supply enable battery-backed wireless sensors lasting 5+ years on a single lithium cell. Industrial temperature rating ensures reliability in unheated attics and outdoor enclosures.
Được đề xuất
BLDC Motor Control Inverters
The ATSAM4SD16BA-AUR is well suited to BLDC motor inverters because its Cortex-M4 single-cycle MAC accelerates field-oriented control (FOC) loops running at 20 kHz PWM. Hardware PWM channels with complementary outputs and programmable dead-time drive three-phase gate drivers directly, eliminating external logic. The 12-bit 1Msps ADC samples phase currents synchronously to PWM, and DMA streams samples to SRAM without CPU stalls. With 1MB Flash, designers embed sensorless back-EMF observers plus torque-ripple compensation tables. Industrial temperature and 1.62-3.6V supply tolerate 24V industrial bus transients after pre-regulation. Pair with external gate drivers for IGBT/MOSFET inverter stages.
Được đề xuất
Low-End HMI Touch Displays
The ATSAM4SD16BA-AUR drives low-end HMI panels by rendering UI screens on small TFT displays via the SPI-controlled LCD interface plus SSC audio for beeps. Its 120 MHz Cortex-M4 with FPU draws smooth 2D widgets and antialiased fonts without external GPU. The 128KB SRAM holds frame buffers up to QVGA (320x240) at 16 bpp. The 12-bit ADC reads touch-screen resistive overlays, and PWM channels dim backlight LEDs. With 1MB Flash, designers embed graphical assets plus multi-language strings. Industrial temperature makes it suitable for factory-floor operator panels, and the 64-LQFP eases hand-rework during prototype bring-up.
Được đề xuất
Consumer Appliance Controllers
The ATSAM4SD16BA-AUR fits consumer appliance controllers (washing machines, dishwashers, induction cooktops) because its Cortex-M4 core plus 1MB Flash stores motor-control algorithms, user-interface state machines, and safety monitor firmware. Multiple PWM outputs drive triac-fired heater elements or variable-frequency motor drives, while the 12-bit ADC monitors current sensors for load detection. USB Full-Speed enables firmware update ports or diagnostic interfaces in service mode. With -40 C to +85 C industrial temperature rating, the device handles under-cabinet heat in appliances. Its 64-LQFP eases hand-assembly and rework versus QFN alternatives.
Được đề xuất
Data Acquisition and Logging
The ATSAM4SD16BA-AUR powers industrial data loggers because its 12-bit 1Msps ADC captures fast transient signals while DMA streams into 128KB SRAM buffers. With 1MB Flash, designers store hours of compressed telemetry locally before USB or SD-card offload. The Cortex-M4 FPU accelerates FFT spectral analysis for vibration monitoring applications. Three USART channels interface to GPS, cellular modems, and RS-485 field buses concurrently. Industrial temperature operation ensures reliable cold-storage and outdoor weather-station deployments. RTC with backup register region preserves timestamps through brown-out events, and the integrated watchdog prevents lockup in unattended remote installations.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM4SD16BA-AUR — 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 | ATSAM4SA16BA-AUR | ATSAM4SD16BA-AU | ATSAM4SD16BA-ANR | ATSAM4SA16CA-AUR |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | LQFP-64 (10x10 mm) | LQFP-64 (10x10 mm) | LQFP-64 (10x10 mm) | LQFP-64 (10x10 mm) | LQFP-64 (10x10 mm) |
| Core | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU |
| Maximum Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Flash Memory | 1 MB | 1 MB | 1 MB | 1 MB | 1 MB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| USB 2.0 | Yes (Full-Speed Device/Host) | No | Yes (Full-Speed Device/Host) | Yes (Full-Speed Device/Host) | No |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Packing Media | Tape and Reel (1500) | Tape and Reel | Tray | Tape and Reel | Tape and Reel |
Bảo phân biệt quan trọng
- Integrated USB 2.0 Full-Speed controller (vsATSAM4SA16BA-AUR)
- 1MB Flash with multi-bit ECC (vsATSAM4S16C (512KB Flash))
- Industrial temperature range (-40 C to +85 C) (vsATSAM4SD16BA-AU (industrial temp, tray))
- 120 MHz Cortex-M4 with FPU and DSP extensions (vsATSAM4S8CA-AU (no FPU, lower Flash))
Ghi chú thiết kế
Decouple VDDIN (pin 5) with a 4.7 uF X7R ceramic plus a 100 nF X7R placed within 3 mm of the pin. Place a separate 100 nF on each VDDIO pin (9, 64) and on VDDCORE (pin 6). The internal regulator requires a minimum 1 uF output capacitance on VDDCORE; use low-ESR ceramic such as GRM188R71C105KA12D. Power sequencing is not required - the on-chip regulator handles arbitrary VDDIN ramp rates.
Route the 12 MHz or 16 MHz crystal traces (XIN/XOUT) symmetrically with ground guard rings to minimise jitter. Keep crystal traces under 5 mm length and away from switching nodes such as PWM outputs and USB DP/DM. The 64-LQFP allows hand-rework, but a 4-layer PCB with continuous ground plane is recommended for industrial EMC compliance. Place the USB ESD diode array within 3 mm of the USB connector with 90 ohm differential impedance on DP/DM traces.
Configure Flash wait-states in EEFC_FCR before raising the system clock above 30 MHz - missing wait-states cause silent fetch corruption under DMA load. Apply the SAM4S device errata workarounds: enable the supply controller SUPC after every WKUP event, and clear the RSTC status register after power-on to avoid false brown-out interrupts. Lock the Flash region with GPNVM bits before deploying firmware in safety-critical applications.
At 120 MHz CPU clock the ATSAM4SD16BA-AUR consumes roughly 30 mA from VDDIN at 3.3V (estimated, based on typical SAM4S power figures; confirm via datasheet Electrical Characteristics section). The 64-LQFP has a theta_JA around 50 C/W on a 4-layer JEDEC test board, producing a 30 C rise above ambient at full load. Industrial temperature operation is comfortably supported without a heatsink, but mounting on a small copper pour further reduces die temperature in enclosed enclosures.
The USB DP/DM pair requires 90 ohm differential impedance and a 22 ohm series resistor at each pin per USB 2.0 specification. Place the series resistors within 4 mm of the MCU pins. For SSC audio, route I2S signals on a separate ground-referenced layer with matched trace lengths within 25 mm to maintain < 5 ns skew. JTAG/SWD lines (TCK, TMS, TDI, TDO, NRST) should be 50 ohm single-ended and pulled up/down per the SAM4S debug specification.
Thông tin tuân thủ
RoHS Green compliant per Microchip product page. Industrial temperature range -40C to +85C standard. AEC-Q100 automotive qualified variants available as separate SAM4SD16C part numbers. Country of origin: China or Philippines per Microchip Direct listing.
