ATSAM4S8CA-AN - 512KB Flash Cortex-M4 MCU 100-LQFP | Microchip
MPN: ATSAM4S8CA-AN ✓ Hoạt độngATSAM4S8CA-AN Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable I/O peripherals. The Cortex-M4 core adds a single-precision FPU and optional SIMD instructions, placing it in the hierarchy: Cortex-M4 -> ARM Cortex-M -> ARM 32-bit RISC processor -> embedded MCU. The SAM4S family targets industrial and consumer applications requiring deterministic real-time control, low-power sleep modes, and rich connectivity.
Key features of the ATSAM4S8CA-AN include 120 MHz core clock with single-cycle hardware multiply, 128 KB SRAM, an External Bus Interface (EBI) for SRAM/NOR/NAND expansion, a 12 Mbps USB FS device, and a True Random Number Generator (TRNG). The peripheral event system allows peripherals to trigger one another autonomously, reducing CPU overhead and enabling deterministic response times.
Architecturally, the device uses a multi-layer bus matrix that grants simultaneous DMA and CPU data transfers, plus an integrated high-speed Flash with prefetch buffer. The Cortex-M4 DSP extensions and MPU (Memory Protection Unit) support deterministic interrupt latency for safety-sensitive code. Operating voltage is 1.62 to 3.6 V.
Typical applications include industrial control (PLC modules, motor drives), USB peripherals (HID devices, virtual COM ports), consumer electronics (home appliances, smart sensors), graphical user interfaces with TFT LCDs, secure connectivity gateways, and low-power IoT edge nodes. Designers choose it for the combination of Cortex-M4 DSP performance, ample Flash, and the SAM4S family's mature peripheral library (ASF).
When designing with this MCU, plan Flash bank-locking for field firmware updates and ensure the EBI lines are impedance-controlled if an external memory bus is used. Decoupling must follow the datasheet 4-layer reference board to keep the 120 MHz core within jitter limits.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that are not collected in any single manufacturer or distributor source.
Bộ thay thế dễ dàng lắp đặt cho ATSAM4S8CA-AN — 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 ATSAM4S8CA-AN (cùng hình factor và footprint) — khác nhau ở Package, ADC, Mounting Type, Operating Temperature, Core.
ATSAM4S8BA-MU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8BB-UUR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S16CA-AN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CA-AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CA-ANR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CA-AN Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M4 (32-bit RISC) with FPU |
| Maximum Clock Speed | 120 MHz |
| Flash Memory | 512 KB (512K x 8) |
| Điện áp cung cấp | 1.62 V to 3.6 V |
| Hộp | 100-pin LQFP (14x14 mm) |
| Nhiệt độ hoạt động | -40C to +85C (AN suffix) |
| USB Interface | USB 2.0 Full-Speed Device |
| ADC | 10-bit, up to 8 channels |
| Communication Peripherals | USART, SPI, TWI (I2C), USB FS |
| External Bus Interface (EBI) | Yes (SRAM/NOR/NAND expansion) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | MSL3 (per JEDEC J-STD-020) |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
| DSP Extensions | ARM Cortex-M4 SIMD/DSP instructions |
Hướng dẫn cấu hình chân ATSAM4S8CA-AN 100-pin lqfp (14x14 mm)
Cấu hình chân cho ATSAM4S8CA-AN (100-pin lqfp (14x14 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 ATSAM4S8CA-AN.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ATSAM4S8CA-AN phù hợp cho 6 Áp dụngs: Industrial Motor Control, USB HID / VCOM Peripherals, TFT LCD / GUI Display Controllers, Smart Home / IoT Edge Devices, Audio Processing / Voice Front-Ends, Automotive Body and HMI Modules.
Industrial Motor Control
The ATSAM4S8CA-AN fits industrial motor control because its Cortex-M4 core runs at 120 MHz with single-cycle hardware MAC and FPU, executing field-oriented control (FOC) loops in well under 10 microseconds. The 512 KB Flash holds full PMSM/BLDC firmware plus tuning tables, while the 16-bit PWM timers provide complementary 3-phase outputs with hardware dead-time insertion. Engineers can use the integrated 10-bit ADC for back-EMF sensing and the event system to trigger ADC conversions from timer compare events, offloading CPU work. Drop-in compatibility with the SAM3S family lets designers reuse existing 100-LQFP layouts across product variants, protecting tooling investment.
Được đề xuất
USB HID / VCOM Peripherals
The ATSAM4S8CA-AN integrates a USB 2.0 Full-Speed device port with on-chip transceiver and 1.5 KB dedicated endpoint RAM, ideal for HID, CDC (virtual COM), MSD, or DFU class devices. Its 120 MHz Cortex-M4 core can service bulk transfers and run protocol stacks simultaneously, while 512 KB Flash comfortably holds composite USB stacks plus application code. The SAM4S ASF USB framework supports plug-and-play enumeration on Windows, Linux, and macOS without external drivers for HID/CDC classes. Using the same 100-LQFP footprint as SAM3S designs allows designers to port existing USB firmware with peripheral driver compatibility.
Được đề xuất
TFT LCD / GUI Display Controllers
The ATSAM4S8CA-AN's External Bus Interface (EBI) drives parallel TFT LCDs up to XGA resolution, while the Cortex-M4 FPU accelerates JPEG decoding and font rendering for graphical user interfaces. The 128 KB SRAM acts as a framebuffer for small QVGA/WQVGA displays, and 512 KB Flash holds asset files, fonts, and GUI frameworks like emWin or LVGL. Peripheral DMA channels can stream pixel data from EBI to LCD without CPU intervention, leaving the core free for touch and logic tasks. Same 100-LQFP footprint across the SAM4S family means display boards can scale memory or add USB at no PCB cost.
Được đề xuất
Smart Home / IoT Edge Devices
The ATSAM4S8CA-AN targets IoT edge nodes that need Cortex-M4 DSP for on-device audio/sensor processing plus connectivity options (USB, USART, SPI for radio modules). The 512 KB Flash supports TLS stacks and OTA bootloader partitions, while hardware AES and TRNG accelerate secure boot. Low-power sleep modes with RTC retention extend battery life in sensors and door locks. The peripheral event system wakes the CPU only when a sensor threshold triggers, achieving microamp-level standby current. The 100-LQFP package is large enough for through-hole-friendly designs and prototyping.
Được đề xuất
Audio Processing / Voice Front-Ends
The ATSAM4S8CA-AN's Cortex-M4 DSP extensions run MP3, AAC, Opus, or noise-suppression codecs at sample rates up to 48 kHz without external audio DSP chips. The integrated 10-bit ADC combined with timer-driven DMA enables digital microphone array capture and beamforming, while USART/SPI interfaces external audio DACs for playback. The 512 KB Flash fits full codec firmware plus presets, and 128 KB SRAM buffers 16-bit 48 kHz audio blocks. Designers using same-family drop-ins like the ATSAM4S16CA-AN gain more space for longer audio buffers or multi-language UI assets on identical PCBs.
Được đề xuất
Automotive Body and HMI Modules
The ATSAM4S8CA-AN is widely used in automotive aftermarket HMI, body controllers, and infotainment peripherals where its -40C to +85C industrial temperature grade meets cabin environments. The Cortex-M4 DSP accelerates CAN-LIN gateway logic over USART plus external transceivers, and the EBI interfaces to small TFT clusters. The hardware AES and TRNG support secure key storage for telematics modules. The 100-LQFP package is suitable for non-safety automotive subsystems (infotainment, body) but for AEC-Q100 safety-critical applications, Microchip's SAMRH and SAMS70 AEC-Q100 variants are recommended.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM4S8CA-AN — 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 | ATSAM4S8BA-MU | ATSAM4S8BB-UUR | ATSAM4S16CA-AN | ATSAM4S8CA-AU | ATSAM4S8CA-ANR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-LQFP (14x14 mm) | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same |
| Core | ARM Cortex-M4 + FPU | ARM Cortex-M4 + FPU | ARM Cortex-M4 + FPU | ARM Cortex-M4 + FPU | ARM Cortex-M4 + FPU | ARM Cortex-M4 + FPU |
| Max Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 1024 KB | 512 KB | 512 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 160 KB | 128 KB | 128 KB |
| USB FS | Yes | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Pin-to-pin SAM4S family compatibility (vsATSAM4S16CA-AN)
- Cortex-M4 + FPU at 120 MHz in 100-LQFP (vsATSAM4N8CA-CU)
- Mature ASF/Atmel Studio firmware ecosystem (vsGeneric Cortex-M4 competitors)
Ghi chú thiết kế
Place a 100 nF decoupling capacitor within 5 mm of each VDD pin pair on the ATSAM4S8CA-AN, and a bulk 4.7 uF ceramic near the package. The 100-LQFP package requires a 4-layer PCB to keep the 120 MHz core within jitter limits and to provide a low-impedance ground return for the USB Full-Speed signals. Per the SAM4S datasheet reference layout, the exposed pad (if present on alternate packages) must be soldered to a continuous ground copper pour. Estimated: at 120 MHz with all peripherals active, core current is roughly 60 mA, so the bulk capacitor must hold voltage during USB suspend resume transients.
Route the USB DP/DM pair as a 90-ohm differential with no splits, no vias if possible, and matched length within 2 mm. Keep the EBI lines short and impedance-controlled to 50 ohms if you use external memory. Avoid routing sensitive analog (ADC) traces parallel to high-speed digital lines - cross at 90 degrees if crossing is unavoidable. Per the SAM4S family datasheet pinout, place the 32.768 kHz crystal within 10 mm of the RTC pins and guard those traces with ground.
Do not enable the Brown-Out Detector (BOD) at the wrong threshold for your supply - the SAM4S has programmable BOD33 and BOD12. Setting BOD33 below your actual VDD can cause spurious resets at power-up. Also, the USB D- pull-up must be enabled by software after enumeration; leaving it enabled at boot violates USB spec and prevents suspend. Finally, do not assume all SAM4S sub-family parts are identical - verify USART count, ADC channel count, and I/O count in the datasheet pin tables, since sub-family suffixes like 8C vs 16C differ only in Flash/SRAM, but other variants may have different peripheral sets.
Estimated: at maximum 120 MHz core speed with full peripheral activity, the ATSAM4S8CA-AN dissipates approximately 150 mW. The 100-LQFP 14x14 mm package on a 4-layer JEDEC JESD51-7 test board gives theta_JA around 50 C/W, leading to a junction temperature rise of about 7.5 C above ambient. At industrial -40C to +85C ambient, this stays well below the 125 C junction limit. For sealed enclosures or USB-powered designs with no airflow, ensure a 4-layer PCB and avoid stacking the MCU under other hot components like linear regulators.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Industrial temperature grade -40C to +85C but not AEC-Q100 qualified. For AEC-Q100 safety-critical automotive applications, use Microchip's SAMRH or SAMS70 AEC-Q100 qualified parts.
