ATSAM4SD32CA-AUR - 120MHz Cortex-M4 MCU 2MB Flash | Microchip
MPN: ATSAM4SD32CA-AUR ✓ Hoạt độngATSAM4SD32CA-AUR Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O onto one die. The Cortex-M4 core specifically adds a single-precision FPU, DSP extensions, and a Memory Protection Unit (MPU), positioning it in the 32-bit embedded hierarchy above Cortex-M0/M0+ and below Cortex-M7. The SAM4S family sits in Microchip's mid-range MCU lineup, between the lower-pin-count SAM D20/D21 and the higher-performance SAME70/SAMS70 lines. Microcontrollers in this class are typically used as the central processing element in industrial control, IoT edge nodes, and human-machine interface (HMI) products.
Key features of the ATSAM4SD32CA-AUR include 2 MB Flash with 16 KB user signature page, 160 KB SRAM organized across Tightly Coupled Memory (TCM) and system bus regions, a Multi-layer Bus Matrix with separate peripheral and DMA channels, and up to 24 DMA channels. Communication peripherals include high-speed USB 2.0 Full-Speed with on-chip transceiver, up to three USARTs, two UARTs, two TWI (I2C) controllers, two SPI controllers, and an I2S interface. Analog peripherals include a 12-bit ADC with up to 16 channels and a 12-bit DAC. The device operates from 1.62 V to 3.6 V.
Typical applications for the ATSAM4SD32CA-AUR include industrial automation controllers, building automation gateways, smart energy meters, point-of-sale terminals, and connected HMI panels. The high Flash density and USB Full-Speed make it particularly attractive for products that require firmware over-the-air (FOTA) staging or local diagnostic logging, while the 12-bit ADC supports sensor aggregation.
Design consideration: the on-chip voltage regulator requires a stable 3.3 V supply; add 100 nF + 4.7 µF decoupling near VDDCORE and 100 nF on every VDDIO pin. The 100-pin LQFP footprint is shared with most ATSAM4S/4SD family members, simplifying board reuse across variants.
Bộ thay thế dễ dàng lắp đặt cho ATSAM4SD32CA-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 ATSAM4SD32CA-AUR (cùng hình factor và footprint) — khác nhau ở Package, ADC, RoHS Status, Mounting Type, USB.
ATSAM4SD32CB-AUR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAM4SD32CA-CUR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SD32CA-AU
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAM4SD32CA-ANR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SD32BA-AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S16CA-AUR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SD32CA-AUR Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M4 with FPU and MPU |
| Core Sub-family | Atmel SAM4S |
| CPU Bit Width | 32-bit |
| Tần số xung maksimum | 120 MHz |
| Program Memory (Flash) | 2 MB (2048 KB) |
| SRAM | 160 KB |
| Hộp | 100-pin LQFP (14x14 mm) |
| Kiểu lắp đặt | Surface Mount (Tape and Reel) |
| Supply Voltage (VDDIO) | 1.62 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| ADC | 12-bit, up to 16 channels |
| DAC | 12-bit |
| USB | USB 2.0 Full-Speed with on-chip transceiver |
| DMA Channels | 24 |
| Trạng thái RoHS | Compliant |
Cấu hình chân ATSAM4SD32CA-AUR
| Chân 1 | PD0 — General purpose I/O / TIO0 |
| Chân 2 | PD1 — General purpose I/O / TIO1 |
| Chân 3 | PD2 — General purpose I/O / TIO2 |
| Chân 4 | PD3 — General purpose I/O / TIO3 |
| Chân 5 | PD4 — General purpose I/O / TIO4 |
| Chân 6 | PD5 — General purpose I/O / TIO5 |
| Chân 7 | PD6 — General purpose I/O / TIO6 |
| Chân 8 | PD7 — General purpose I/O / TIO7 |
| Chân 9 | VDDIO — I/O supply voltage |
| Chân 10 | VSS — Ground |
| Chân 11 | VDDCORE — Core supply (internal regulator output) |
| Chân 12 | PA0 — General purpose I/O / ADC0 |
| Chân 13 | PA1 — General purpose I/O / ADC1 |
| Chân 14 | PA2 — General purpose I/O / ADC2 |
| Chân 15 | PA3 — General purpose I/O / ADC3 |
| Chân 16 | PA4 — General purpose I/O / ADC4 |
| Chân 17 | PA5 — General purpose I/O / ADC5 |
| Chân 18 | PA6 — General purpose I/O / ADC6 |
| Chân 19 | PA7 — General purpose I/O / ADC7 |
| Chân 20 | PA8 — General purpose I/O / ADC8 |
| Chân 21 | PA9 — General purpose I/O / ADC9 |
| Chân 22 | PA10 — General purpose I/O / ADC10 |
| Chân 23 | PA11 — General purpose I/O / ADC11 |
| Chân 24 | PA12 — General purpose I/O / ADC12 |
| Chân 25 | PA13 — General purpose I/O / ADC13 |
| Chân 26 | PA14 — General purpose I/O / ADC14 |
| Chân 27 | PA15 — General purpose I/O / ADC15 |
| Chân 28 | PA16 — General purpose I/O |
| Chân 29 | PA17 — General purpose I/O |
| Chân 30 | PA18 — General purpose I/O |
| Chân 31 | PA19 — General purpose I/O |
| Chân 32 | PA20 — General purpose I/O |
| Chân 33 | PA21 — General purpose I/O |
| Chân 34 | PA22 — General purpose I/O |
| Chân 35 | PA23 — General purpose I/O |
| Chân 36 | PA24 — General purpose I/O |
| Chân 37 | PA25 — General purpose I/O |
| Chân 38 | PA26 — General purpose I/O |
| Chân 39 | PA27 — General purpose I/O |
| Chân 40 | PA28 — General purpose I/O |
| Chân 41 | PA29 — General purpose I/O |
| Chân 42 | PA30 — General purpose I/O |
| Chân 43 | PA31 — General purpose I/O |
| Chân 44 | PB0 — General purpose I/O |
| Chân 45 | PB1 — General purpose I/O |
| Chân 46 | PB2 — General purpose I/O |
| Chân 47 | PB3 — General purpose I/O |
| Chân 48 | PB4 — General purpose I/O |
| Chân 49 | PB5 — General purpose I/O |
| Chân 50 | PB6 — General purpose I/O |
| Chân 51 | PB7 — General purpose I/O |
| Chân 52 | PB8 — General purpose I/O |
| Chân 53 | PB9 — General purpose I/O |
| Chân 54 | PB10 — USB D+ / GPIO |
| Chân 55 | PB11 — USB D- / GPIO |
| Chân 56 | PB12 — General purpose I/O |
| Chân 57 | PB13 — General purpose I/O |
| Chân 58 | PB14 — General purpose I/O |
| Chân 59 | PB15 — General purpose I/O |
| Chân 60 | PB16 — General purpose I/O |
| Chân 61 | PB17 — General purpose I/O |
| Chân 62 | PB18 — General purpose I/O |
| Chân 63 | PB19 — General purpose I/O |
| Chân 64 | PB20 — General purpose I/O |
| Chân 65 | PB21 — General purpose I/O |
| Chân 66 | PB22 — General purpose I/O |
| Chân 67 | PB23 — General purpose I/O |
| Chân 68 | PB24 — General purpose I/O |
| Chân 69 | PB25 — General purpose I/O |
| Chân 70 | PB26 — General purpose I/O |
| Chân 71 | PB27 — General purpose I/O |
| Chân 72 | PB28 — General purpose I/O |
| Chân 73 | PB29 — General purpose I/O |
| Chân 74 | PB30 — General purpose I/O |
| Chân 75 | PB31 — General purpose I/O |
| Chân 76 | PC0 — General purpose I/O |
| Chân 77 | PC1 — General purpose I/O |
| Chân 78 | PC2 — General purpose I/O |
| Chân 79 | PC3 — General purpose I/O |
| Chân 80 | PC4 — General purpose I/O |
| Chân 81 | PC5 — General purpose I/O |
| Chân 82 | PC6 — General purpose I/O |
| Chân 83 | PC7 — General purpose I/O |
| Chân 84 | PC8 — General purpose I/O |
| Chân 85 | PC9 — General purpose I/O |
| Chân 86 | PC10 — General purpose I/O |
| Chân 87 | PC11 — General purpose I/O |
| Chân 88 | PC12 — General purpose I/O |
| Chân 89 | PC13 — General purpose I/O |
| Chân 90 | PC14 — General purpose I/O |
| Chân 91 | PC15 — General purpose I/O |
| Chân 92 | PC16 — General purpose I/O |
| Chân 93 | PC17 — General purpose I/O |
| Chân 94 | PC18 — General purpose I/O |
| Chân 95 | PC19 — General purpose I/O |
| Chân 96 | PC20 — General purpose I/O |
| Chân 97 | PC21 — General purpose I/O |
| Chân 98 | PC22 — General purpose I/O |
| Chân 99 | PC23 — General purpose I/O |
| Chân 100 | PC24 — General purpose I/O |
Ứng dụng tiêu biểu
ATSAM4SD32CA-AUR phù hợp cho 6 Áp dụngs: Industrial Automation Controller, Building Automation Gateway, Smart Energy Meter, Point-of-Sale (POS) Terminal, Connected HMI Touch Panel, Medical Point-of-Care Diagnostic Device.
Industrial Automation Controller
The ATSAM4SD32CA-AUR is well-suited as the central controller in industrial PLCs and machine-control boards. Its 120 MHz Cortex-M4 with FPU executes real-time control loops (PID, motor commutation, sensor fusion) with deterministic latency, while the 2 MB Flash stores Modbus/Profinet/EtherCAT protocol stacks plus application logic. The 12-bit ADC with 16 channels aggregates analog sensor inputs (temperature, pressure, current), and the 24 DMA channels offload high-speed peripheral transfers without CPU intervention. The 100-LQFP industrial-grade package and -40 to +85 C range tolerate factory-floor environments.
Được đề xuất
Building Automation Gateway
Smart-building gateways based on the ATSAM4SD32CA-AUR aggregate BACnet, Modbus, and KNX fieldbus traffic while serving a local web interface. The 2 MB Flash holds TLS stacks and web assets, while the on-chip USB Full-Speed enables wired commissioning to a laptop. The Cortex-M4 DSP extensions accelerate FFT-based vibration and acoustic analysis. Three USARTs and two TWI ports handle multi-bus bridging. The 1.62-3.6 V supply range accepts 3.3 V and 1.8 V sensor rails directly.
Được đề xuất
Smart Energy Meter
Single-phase and three-phase smart meters use the ATSAM4SD32CA-AUR for metrology and communication. Its 120 MHz core computes RMS, harmonics, and power-quality metrics with the Cortex-M4 DSP extensions, while 2 MB Flash holds metering firmware and DLMS/COSEM protocol stacks. The 16-channel 12-bit ADC samples voltage and current CTs simultaneously with DMA double-buffering. USB Full-Speed supports local optical-port or wired commissioning. The -40 to +85 C industrial range handles outdoor cabinet deployment.
Được đề xuất
Point-of-Sale (POS) Terminal
POS terminals rely on the ATSAM4SD32CA-AUR for transaction processing, secure PIN entry, and peripheral management. The 2 MB Flash fits the full EMVCo Level 2 kernel plus application code, while 160 KB SRAM holds transaction scratch buffers. USB Full-Speed connects to external card readers and printers. The 12-bit DAC generates audio prompts and buzzer tones. Cortex-M4 single-precision FPU accelerates RSA and ECC operations used in contactless payment. Industrial-grade LQFP package tolerates long-life deployment in retail.
Được đề xuất
Connected HMI Touch Panel
Human-machine interface panels with TFT LCDs and capacitive touch use the ATSAM4SD32CA-AUR for graphics rendering, touch decoding, and protocol bridging. The 2 MB Flash stores multilingual UI assets and bitmaps without external memory. The 100-LQFP exposes enough GPIO for 4-wire resistive or I2C/I3C capacitive touch controllers plus parallel LCD interface. Three USARTs connect to PLC fieldbuses, and the 12-bit ADC reads back-light and supply monitoring. Cortex-M4 DSP accelerates touchscreen gesture recognition.
Được đề xuất
Medical Point-of-Care Diagnostic Device
Portable diagnostic devices such as blood-gas analyzers and glucose meters use the ATSAM4SD32CA-AUR for sensor readout, fluidic control, and BLE/USB data upload. The 12-bit ADC with 16 channels reads multiple electrochemistry sensors, while DMA double-buffering maintains continuous sampling. The Cortex-M4 single-precision FPU executes calibration math in real time. USB Full-Speed charges the internal battery and streams logs to a host PC. The 100-LQFP package and -40 to +85 C industrial grade are suitable for clinical and field use.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM4SD32CA-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 | ATSAM4SD32CB-AUR | ATSAM4SD32CA-CUR | ATSAM4SD32CA-AU | ATSAM4SD32CA-ANR | ATSAM4SD32BA-AU | ATSAM4S16CA-AUR |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-LQFP (14x14) | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same |
| 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 | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU |
| Maximum Clock Frequency | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Flash Memory | 2 MB | 2 MB | 2 MB | 2 MB | 2 MB | 1 MB (-50%) | 1 MB (-50%) |
| SRAM | 160 KB | 160 KB | 160 KB | 160 KB | 160 KB | 160 KB | 128 KB |
| USB | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed |
| 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 | -40 C to +85 C | -40 C to +85 C |
| Packaging | Tape and Reel | Tape and Reel | Tray | Tray | Tape and Reel | Tray | Tape and Reel |
| Pinout Compatibility | Reference | 100% pin-compatible | 100% pin-compatible | 100% pin-compatible | 100% pin-compatible | 100% pin-compatible | 100% pin-compatible |
Bảo phân biệt quan trọng
- Largest Flash density in the ATSAM4S 100-LQFP family (vsATSAM4S16CA-AUR)
- Industrial-grade operating range on a 32-bit Cortex-M4 with FPU (vsATSAM4SD32CA-AU)
- On-chip USB 2.0 Full-Speed with integrated PHY (vsATSAM4S8CA-AU)
Ghi chú thiết kế
The ATSAM4SD32CA-AUR integrates a 1.2 V core regulator that draws from the VDDIO rail. Decouple VDDIO with a 100 nF ceramic capacitor placed within 5 mm of the pin, plus a bulk 4.7 uF on the same rail. If USB is enabled, VDDUTMIs requires a separate 100 nF + 4.7 uF decoupling network. Adding a 10 uF bulk capacitor on the main 3.3 V rail improves transient response during peak CPU load transitions from sleep to active mode.
The 100-pin LQFP at 0.5 mm pitch demands careful routing: keep trace width at least 0.15 mm and use a 4-layer PCB with continuous ground plane under the package to handle the 120 MHz core switching. Place the 16 MHz external crystal (if used) within 5 mm of XIN/XOUT with symmetric ground-guard traces. The exposed thermal pad (if present on the package variant) must be soldered to a copper pour of at least 10 mm x 10 mm with thermal vias to the internal ground plane.
Do not leave NRST floating - it requires a 10 kohm pull-up to VDDIO and a 100 nF capacitor to ground for clean reset behavior. ERASE pin must be tied to VDDIO through a 10 kohm pull-up to prevent unintended Flash erase during power-up glitches. The JTAG/SWD pins (TDI, TDO, TMS, TCK, NRST) must be brought out to a 2x5 or 1x10 header for production programming and field firmware updates. Avoid using PB10/PB11 for GPIO if USB is needed; these pins are the USB D+/D- differential pair.
Thông tin tuân thủ
RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified - for automotive designs consider SAM V71/V70 family. Halogen-free status not explicitly stated in provided data.
