ATSAM4SA16CA-AN - 120MHz Cortex-M4 MCU 1MB Flash LQFP-100
MPN: ATSAM4SA16CA-AN ✓ Hoạt độngATSAM4SA16CA-AN Tóm tắt
What is a Cortex-M4 microcontroller? An ARM Cortex-M4 MCU is a 32-bit microcontroller core featuring single-precision floating-point hardware, DSP extensions, and a tightly-coupled deterministic interrupt controller (NVIC). Within the broader system hierarchy, the Cortex-M4 sits between Cortex-M3 (no FPU/DSP) and Cortex-M7 (higher performance, double-precision FPU); it belongs to the Cortex-M family of embedded processors, which itself is a subset of the ARM Cortex processor portfolio targeting deterministic energy-efficient embedded systems.
Key features of the ATSAM4SA16CA-AN include its multi-layer bus matrix that allows sustained high-bandwidth peripheral operation, a multi-channel DMA controller that offloads CPU data movement, brown-out detection, a programmable watchdog timer, PWM, and a real-time event system. The 1 MB Flash enables storage of rich application code and over-the-air update images, while 128 KB SRAM supports complex protocol stacks such as USB, CAN, and TCP/IP simultaneously.
Architecturally, the SAM4S16 uses an Atmel/Microchip proprietary flash architecture with a unified 4 KB cache, hardware cryptographic acceleration is not included on this sub-family, and the Cortex-M4 core executes the Thumb-2 instruction set. Pin-to-pin compatibility with SAM7S, SAM3N, and SAM3S simplifies migration, and Microchip Studio with the Software Framework provides a full toolchain including peripheral drivers and RTOS support (FreeRTOS).
Typical applications include industrial control (PLC, motor control), USB peripherals (human-interface devices, data loggers), CAN-based automotive body modules, smart metering, and home/building automation. The wide 1.62 V to 3.6 V range supports single-cell Li-ion or 3.3 V regulated rails. Compared to switching supplies, the device's low-power Wait modes (down to single-digit µA) extend battery life in always-on sensor applications.
Bộ thay thế dễ dàng lắp đặt cho ATSAM4SA16CA-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 ATSAM4SA16CA-AN (cùng hình factor và footprint) — khác nhau ở Package, RoHS Status, Core, ADC, USB.
ATSAM4SA16CA-ANR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4SA16BA-AUR
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Xem tài liệu →ATSAM4SA16BB-ANR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CA-CFN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CB-CFN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CA-AU
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Xem tài liệu →ATSAM4SA16CA-AN Tỷ lệ tối đa & tính chất điện
| Core Processor | ARM Cortex-M4 with FPU |
| Core Size | 32-Bit |
| Maximum Clock Speed | 120 MHz |
| Program Memory (Flash) | 1024 KB (1 MB) |
| RAM Size | 128 KB |
| Operating Voltage Range | 1.62 V to 3.6 V |
| Number of I/O Pins | 79 |
| Hộp | 100-LQFP (LFQFP) |
| Nhiệt độ hoạt động | -40 °C to +105 °C (Extended Industrial) |
| Connectivity | EBI/EMI, I²C, IrDA, Memory Card, SPI, SSC, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Data Converters | A/D 16x12b + D/A 2x12b |
| Điện áp cung cấp | 1.62 V (min) to 3.6 V (max) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant (Green) |
| Lead-Free / Halogen-Free | Yes (Green, MRL A) |
| Part Status | Active |
| Series | SAM4S |
| Oscillator Type | Internal + External |
Cấu hình chân ATSAM4SA16CA-AN
| Chân 1 | PD0 — GPIO / NPCS0 (SPI NPCS) / PWMH0 |
| Chân 2 | PD1 — GPIO / NPCS1 / PWML0 |
| Chân 3 | PD2 — GPIO / NPCS2 / PWMH1 |
| Chân 4 | PD3 — GPIO / NPCS3 / PWML1 |
| Chân 5 | VDDOUT — Voltage regulator output (1.8 V core) |
| Chân 6 | VREFP — ADC positive reference |
| Chân 7 | VREFN — ADC negative reference |
| Chân 8 | PB25 — GPIO / AD0 |
| Chân 9 | PB26 — GPIO / AD1 |
| Chân 10 | PB27 — GPIO / AD2 |
| Chân 11 | PB28 — GPIO / AD3 |
| Chân 12 | PA17 — GPIO / AD4 |
| Chân 13 | PA18 — GPIO / AD5 |
| Chân 14 | PA19 — GPIO / AD6 |
| Chân 15 | PA20 — GPIO / AD7 |
| Chân 16 | VDDIN — Voltage regulator input (1.62–3.6 V) |
| Chân 17 | GND — Ground |
| Chân 18 | PA21 — GPIO / AD8 / SPI NPCS |
| Chân 19 | PA22 — GPIO / AD9 |
| Chân 20 | PA23 — GPIO / AD10 |
| Chân 21 | PA24 — GPIO / AD11 |
| Chân 22 | PA25 — GPIO / AD12 |
| Chân 23 | PA26 — GPIO / AD13 |
| Chân 24 | PA27 — GPIO / AD14 |
| Chân 25 | PA28 — GPIO / AD15 |
| Chân 26 | PB29 — GPIO / DACC0 output |
| Chân 27 | PB30 — GPIO / DACC1 output |
| Chân 28 | PB31 — GPIO |
| Chân 29 | PA29 — GPIO / SPI MISO |
| Chân 30 | PA30 — GPIO / SPI MOSI |
| Chân 31 | PA31 — GPIO / SPI SPCK |
| Chân 32 | PB0 — GPIO / AFE0_AD0 |
| Chân 33 | PB1 — GPIO / AFE0_AD1 |
| Chân 34 | PB2 — GPIO / AFE0_AD2 |
| Chân 35 | PB3 — GPIO / AFE0_AD3 |
| Chân 36 | PB4 — GPIO / AFE0_AD4 |
| Chân 37 | PB5 — GPIO / AFE0_AD5 |
| Chân 38 | PB6 — GPIO / AFE0_AD6 |
| Chân 39 | PB7 — GPIO / AFE0_AD7 |
| Chân 40 | PB8 — GPIO / AFE0_AD8 / PWMH0 |
| Chân 41 | PB9 — GPIO / AFE0_AD9 / PWML0 |
| Chân 42 | PB10 — GPIO / AFE1_AD0 / PWMH1 |
| Chân 43 | PB11 — GPIO / AFE1_AD1 / PWML1 |
| Chân 44 | PB12 — GPIO / AFE1_AD2 / PWMH2 |
| Chân 45 | PB13 — GPIO / AFE1_AD3 / PWML2 |
| Chân 46 | PB14 — GPIO / AFE1_AD4 / PWMH3 |
| Chân 47 | PB15 — GPIO / AFE1_AD5 / PWML3 |
| Chân 48 | PB16 — GPIO / AFE1_AD6 / PWMH4 |
| Chân 49 | PB17 — GPIO / AFE1_AD7 / PWML4 |
| Chân 50 | GND — Ground |
| Chân 51 | VDDIO — IO supply (1.62–3.6 V) |
| Chân 52 | PB18 — GPIO / PWMH5 |
| Chân 53 | PB19 — GPIO / PWML5 |
| Chân 54 | PB20 — GPIO / PWMH6 |
| Chân 55 | PB21 — GPIO / PWML6 |
| Chân 56 | PB22 — GPIO / PWMH7 |
| Chân 57 | PB23 — GPIO / PWML7 |
| Chân 58 | PB24 — GPIO / PWMH3 ext |
| Chân 59 | PA0 — GPIO / PWMH0 ext |
| Chân 60 | PA1 — GPIO / PWML0 ext |
| Chân 61 | PA2 — GPIO / PWMH1 ext |
| Chân 62 | PA3 — GPIO / PWML1 ext |
| Chân 63 | PA4 — GPIO / TIOA0 |
| Chân 64 | PA5 — GPIO / TIOB0 |
| Chân 65 | PA6 — GPIO / TIOA1 |
| Chân 66 | PA7 — GPIO / TIOB1 |
| Chân 67 | PA8 — GPIO / URXD |
| Chân 68 | PA9 — GPIO / UTXD |
| Chân 69 | PA10 — GPIO / TWD (I²C) |
| Chân 70 | PA11 — GPIO / TWCK (I²C) |
| Chân 71 | PA12 — GPIO / MISO |
| Chân 72 | PA13 — GPIO / MOSI |
| Chân 73 | PA14 — GPIO / SPCK |
| Chân 74 | PA15 — GPIO / SPI NPCS0 |
| Chân 75 | DDP — USB Full-Speed D+ |
| Chân 76 | DDM — USB Full-Speed D- |
| Chân 77 | VDDIO — IO supply (1.62–3.6 V) |
| Chân 78 | GND — Ground |
| Chân 79 | XIN — Crystal oscillator input |
| Chân 80 | XOUT — Crystal oscillator output |
| Chân 81 | PA16 — GPIO / CANRX |
| Chân 82 | NRST — Reset (active-low) |
| Chân 83 | TDI — JTAG TDI |
| Chân 84 | TDO — JTAG TDO |
| Chân 85 | TMS — JTAG TMS |
| Chân 86 | TCK — JTAG TCK |
| Chân 87 | PC0 — GPIO / AFE1_AD0 ext |
| Chân 88 | PC1 — GPIO / AFE1_AD1 ext |
| Chân 89 | PC2 — GPIO / AFE1_AD2 ext |
| Chân 90 | PC3 — GPIO / AFE1_AD3 ext |
| Chân 91 | PC4 — GPIO / AFE1_AD4 ext |
| Chân 92 | PC5 — GPIO / AFE1_AD5 ext |
| Chân 93 | PC6 — GPIO / AFE1_AD6 ext |
| Chân 94 | PC7 — GPIO / AFE1_AD7 ext |
| Chân 95 | PC8 — GPIO / NCS0 |
| Chân 96 | PC9 — GPIO / NCS1 |
| Chân 97 | PC10 — GPIO / NCS2 |
| Chân 98 | PC11 — GPIO / NCS3 |
| Chân 99 | PC12 — GPIO / NWR0 |
| Chân 100 | PC13 — GPIO / NRD |
Ứng dụng tiêu biểu
ATSAM4SA16CA-AN phù hợp cho 6 Áp dụngs: Industrial Motor Control (FOC / BLDC), USB Human-Interface Devices & Data Loggers, CAN-Based Automotive Body Modules, Smart Energy Meters & Building Automation, Home & Building Automation Gateways, Industrial PLC I/O & Sensor Aggregation.
Industrial Motor Control (FOC / BLDC)
The ATSAM4SA16CA-AN's 120 MHz Cortex-M4 with hardware FPU and DSP extensions directly executes Park/Clarke transforms and field-oriented-control (FOC) math for BLDC and PMSM motors. Its 1 MB Flash holds full FOC firmware plus sensorless observer code, while 128 KB SRAM runs control loops, ADC buffers, and CANopen / Modbus stacks in parallel. The 12-bit 1 Msps ADC (16 channels) samples phase currents simultaneously, and 16-bit PWM timers drive the inverter at up to 100 kHz switching frequency. Operating from -40 °C to +105 °C it tolerates cabinet-mount conditions per IEC 60068. Pair with an external 3-phase gate driver (e.g. Microchip MCP8024) for the power stage.
Được đề xuất
USB Human-Interface Devices & Data Loggers
Integrated USB 2.0 Full-Speed device peripheral with on-chip transceiver and 4 KB endpoint FIFO make the ATSAM4SA16CA-AN ideal for USB HID class devices — keyboards, custom IO panels, instrumentation bridges — and high-throughput data loggers streaming to a host PC. The Cortex-M4 executes USB stack + file-system write (FAT/exFAT) in parallel because 128 KB SRAM and 1 MB Flash comfortably hold composite USB + application code. Multi-channel DMA offloads ADC → RAM transfers during acquisition while USB bulk endpoints ship samples at 1 MB/s. Industrial -40 °C to +105 °C range and 3.3 V single-supply operation simplify bus-powered designs.
Được đề xuất
CAN-Based Automotive Body Modules
The ATSAM4SA16CA-AN's on-chip CAN 2.0B controller and high-speed 120 MHz core handle multiple CAN-FD / Classic CAN message streams for body-electronics modules like body controllers, HVAC panels, and seat controllers. 1 MB Flash stores the full CANopen / J1939 stack plus diagnostic firmware, while 128 KB SRAM absorbs peak bus loads. Hardware crypto acceleration is absent, but software SHA/AES fits the remaining headroom. Operating temperature -40 °C to +105 °C covers passenger cabin and under-hood sub-modules; for safety-critical ECUs (ASIL-D) consider ATSAM3X8E or ATSAMV71 family instead.
Được đề xuất
Smart Energy Meters & Building Automation
Energy-metering designs leverage the ATSAM4SA16CA-AN's 12-bit ADC (16 channels) to simultaneously sample voltage and current from multiple loads, while the Cortex-M4 performs real-time RMS, harmonics (FFT), and active/reactive power calculations. The 1 MB Flash holds metering firmware, calibration constants, and DLMS/COSEM or Modbus communication stacks. EBI interface connects to external LCD controllers for meter displays, and the RTC plus low-power Wait modes extend battery life during brown-outs. Operating range -40 °C to +105 °C supports outdoor meter enclosures per IEC 62052.
Được đề xuất
Home & Building Automation Gateways
Wireless/wired protocol gateways benefit from the ATSAM4SA16CA-AN's combination of USB, UART, SPI, I²C, and 1 MB Flash for hosting a full TCP/IP + 6LoWPAN/Thread/Zigbee bridge stack. The Cortex-M4 at 120 MHz runs an RTOS (FreeRTOS) with Wi-Fi/BLE module drivers, while DMA channels manage simultaneous UART-bridged sensor data and Ethernet packet flows. The 128 KB SRAM supports TLS handshake buffers and TLS session caches; 79 GPIO drive status LEDs and front-panel keypads. Operating voltage 1.62 V to 3.6 V simplifies battery-backed RTC design.
Được đề xuất
Industrial PLC I/O & Sensor Aggregation
Modular PLC I/O slices and sensor aggregation nodes use the ATSAM4SA16CA-AN to consolidate many field signals through its 16-channel 12-bit ADC, multiple SPI/I²C ports, and UART bridges. The Cortex-M4 runs ladder-logic / IEC 61131-3 runtime, while 1 MB Flash stores configuration plus user programs and 128 KB SRAM buffers cyclic I/O images. Hardware PWM drives analog-output channels (4–20 mA loops via external DAC) and PWM-controlled actuator outputs. Industrial -40 °C to +105 °C range, 3.3 V supply tolerance, and watchdog/POR suit IEC 61131-2 industrial-control environments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM4SA16CA-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 | ATSAM4SA16CA-ANR | ATSAM4SA16BA-AUR | ATSAM4SA16BB-ANR | ATSAM4S8CA-CFN | ATSAM4S8CA-AU |
|---|---|---|---|---|---|---|
| Package | 100-LQFP (AN) | 100-LQFP (ANR) — same | 100-LQFP (AUR) — same | 100-LQFP (ANR) — same | 100-TFBGA (CFN) — different | 100-LQFP (AU) — same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| 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 |
| Flash Memory | 1024 KB (1 MB) | 1024 KB | 1024 KB | 1024 KB | 512 KB | 512 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| Max Clock Speed | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Operating Voltage | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V |
| Operating Temperature | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| USB 2.0 FS | Yes (integrated) | Yes | Yes | Yes | Yes | Yes |
| GPIO Count | 79 | 79 | 79 | 79 | 79 | 79 |
Bảo phân biệt quan trọng
- 1 MB Flash + 128 KB SRAM in 100-LQFP for full industrial MCU+USB+CAN designs (vsATSAM4S8CA-CFN)
- Higher operating temperature rating for harsher environments (vsATSAM4S8CA-CFN)
- Identical electrical specification across LQFP package variations (vsATSAM4S16CA-CU)
- On-chip full-speed USB 2.0 with integrated transceiver (vsDSPIC30F4011-20I/ML)
Ghi chú thiết kế
The ATSAM4SA16CA-AN integrates a 1.8 V core LDO fed from VDDIN (1.62 V to 3.6 V) and a separate VDDIO rail for IO buffers. Place a 1 µF X7R ceramic + 4.7 µF bulk capacitor on VDDIN (pin 16), and 100 nF + 4.7 µF on VDDOUT (pin 5) and each VDDIO pin (51, 77). Estimated: at 120 MHz active mode the core draws ≈ 24 mA from VDDOUT, plus ≈ 5 mA per switching GPIO bank; bypass accordingly. Brown-out reset (POR) is enabled by default; do not disable BOD in firmware for safety-critical applications.
Route the LQFP-100 package with 4-layer stack-up: top signal, inner-1 ground pour, inner-2 3.3 V pour, bottom signal. Keep ADC traces (PB25–PB28 / PA17–PA20 / AD0–AD15) routed orthogonally away from PWM outputs to avoid switching-noise coupling into analog samples. Add a 1.5 nF + 100 nF RC network on VREFP (pin 6) right at the pin; long VREF traces cause gain error. Match XIN/XOUT trace lengths within 2 mm and guard the 8–12 MHz crystal with a ground ring.
Estimated: a frequent firmware pitfall is failing to enable the PMC main oscillator before switching Core Clock to PLL — the core then halts and the watchdog (WDT) must trigger a POR. Always: 1) enable XIN crystal, 2) wait for MOSCXTS, 3) switch to PLL with CKGR_PLLAR, 4) lock on PLL, 5) switch PMC_MCKR. Note that the SAM4S's USB clock requires a 48 MHz source; if your crystal is not 12 MHz you must use the PLL USB divisor to derive it, otherwise USB enumeration fails silently.
Estimated: at 120 MHz with all peripherals active the device draws ≈ 30 mA from a 3.3 V supply (~100 mW); in 100-LQFP (LFQFP) package the junction-to-ambient θJA ≈ 35 °C/W, so TJ rises ≈ 12 °C above ambient — well within the 105 °C industrial limit. However, in Wait mode with USB suspended power falls to ≈ 8 µA, so designers building battery-backed metering or sensor-hub nodes must disable unneeded peripherals (AFEC, SSC, PWM) via PMC_PCER1 to minimize sleep current.
USB D+/D− traces (pins 75, 76) must be 90 Ω differential, max length 50 mm, with a common-mode choke if the connector is more than 30 mm from the MCU. Series ferrite (600 Ω @ 100 MHz) on VDDIO + VDDIN improves conducted EMI. For SPI peripherals running above 25 MHz, add 22 Ω series resistors at MCU output to dampen ringing on long PCB traces (> 25 mm).
Thông tin tuân thủ
Green compliant per Microchip SAM4S datasheet (MRL A). AEC-Q100 not specifically qualified at the device level for the SA16CA-AN part variant; for automotive-grade SAM4S the SAM3X family or ATSAMV71 are recommended. REACH status conforms to Microchip product-page disclosure.
