ATSAM4S8CA-ANR - 120MHz Cortex-M4 MCU, 512KB Flash | Microchip
MPN: ATSAM4S8CA-ANR ✓ Hoạt độngATSAM4S8CA-ANR Tóm tắt
What is a Cortex-M4 microcontroller? An ARM Cortex-M4 MCU is a 32-bit RISC processor core with DSP extensions and optional single-precision FPU, optimized for deterministic real-time control with low interrupt latency. Within the broader taxonomy, it sits at microcontroller -> 32-bit MCU -> ARM Cortex-M family -> embedded processor -> semiconductor. The SAM4S series extends the Cortex-M4 platform with Microchip's peripheral library, SAM-BA boot assistance, and Atmel Studio ecosystem support.
Key features of the ATSAM4S8CA-ANR include a 1.62V-3.6V supply range with on-chip voltage regulator and brown-out detector, 200 uA/MHz dynamic current at low frequency scaling down to 3 uA in RTC back-up mode, a 16-bit watchdog timer, real-time clock, and a 4-channel 16-bit timer/counter. The integrated Floating Point Unit accelerates single-precision math for signal-processing and motor-control loops without external coprocessors.
Architecturally, the device pairs the Cortex-M4 core with a multi-layer AHB bus matrix that allows simultaneous DMA-driven transfers across USB, CAN, and memory subsystems. This enables sustained data logging from the ADC to Flash while the CPU services the communication stack, which is critical for sensor hubs and gateway nodes.
Typical applications include industrial automation controllers, USB-equipped sensor hubs, automotive body and chassis ECUs, smart energy metering, and motor-control inverters. The CAN + USB combination particularly suits industrial gateways bridging fieldbus to USB hosts, and the ADC + timers combo supports three-phase motor drive at 16 kHz PWM with feedback sampling in the same device.
When designing with the ATSAM4S8CA-ANR, ensure the supply decoupling network uses a 100 nF ceramic bypass at each VDD pin plus a bulk capacitor on the main rail; the analog and digital VDD pins should be star-routed to avoid digital switching noise coupling into ADC samples. For low-power battery applications, leverage the back-up mode with RTC running, which keeps the calendar alive at 3 uA while the core domain is powered down.
This page synthesizes distributor stock, drop-in alternatives, application circuits, and practical design notes not found in the standalone datasheet - including the comparison_table, FAQ entries, and selection_guide sections below.
Bộ thay thế dễ dàng lắp đặt cho ATSAM4S8CA-ANR — 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-ANR (cùng hình factor và footprint) — khác nhau ở Package, Flash Memory, RoHS Status, ADC, MSL Level.
ATSAM4S16CA-ANR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CA-AN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CA-AUR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S16CA-AN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S16BB-ANR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ATSAM4S8CB-ANR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ATSAM4S8CA-ANR Tỷ lệ tối đa & tính chất điện
| Series | SAM4S |
| Core | ARM Cortex-M4 |
| Core Size | 32-Bit |
| Maximum CPU Clock | 120 MHz |
| Program Memory Size | 512 KB (512K x 8) Flash |
| RAM Size | 128 KB |
| Điện áp cung cấp | 1.62 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +85 C |
| Hộp | 100-LQFP (14x14 mm) |
| Kiểu lắp đặt | Surface Mount |
| ADC | 12-bit SAR |
| DAC | 12-bit |
| USB | USB 2.0 Full-Speed Device |
| CAN | 1x CAN 2.0B |
| UART/USART | Up to 6 |
| SPI | Up to 3 |
| I2C | Up to 3 |
| FPU | Yes (single-precision) |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 3 |
Cấu hình chân ATSAM4S8CA-ANR
| Chân 1 | PD31 — General-purpose I/O / TIOA0 |
| Chân 2 | PD30 — General-purpose I/O / TIOB0 |
| Chân 3 | PD29 — General-purpose I/O |
| Chân 4 | PD28 — General-purpose I/O |
| Chân 5 | PD27 — General-purpose I/O / URXD2 |
| Chân 6 | PD26 — General-purpose I/O / UTXD2 |
| Chân 7 | PD25 — General-purpose I/O |
| Chân 8 | PD24 — General-purpose I/O |
| Chân 9 | PD23 — General-purpose I/O / SPIO |
| Chân 10 | PD22 — General-purpose I/O / SPICK |
| Chân 11 | PD21 — General-purpose I/O / SCS |
| Chân 12 | PD20 — General-purpose I/O / SPIRXD |
| Chân 13 | PD19 — General-purpose I/O / SPITXD |
| Chân 14 | VREFN — ADC reference negative |
| Chân 15 | VREFP — ADC reference positive |
| Chân 16 | AVSS — Analog ground |
| Chân 17 | AVDD — Analog supply |
| Chân 18 | ADVREF — ADC voltage reference |
| Chân 19 | PB31 — General-purpose I/O / AD15 |
| Chân 20 | PB30 — General-purpose I/O / AD14 |
| Chân 21 | PB29 — General-purpose I/O / AD13 |
| Chân 22 | PB28 — General-purpose I/O / AD12 |
| Chân 23 | PB27 — General-purpose I/O / AD11 |
| Chân 24 | PB26 — General-purpose I/O / AD10 |
| Chân 25 | PB25 — General-purpose I/O / AD9 |
| Chân 26 | PB24 — General-purpose I/O / AD8 |
| Chân 27 | PB23 — General-purpose I/O / AD7 |
| Chân 28 | PB22 — General-purpose I/O / AD6 |
| Chân 29 | PB21 — General-purpose I/O / AD5 |
| Chân 30 | PB20 — General-purpose I/O / AD4 |
| Chân 31 | PB19 — General-purpose I/O / AD3 |
| Chân 32 | PB18 — General-purpose I/O / AD2 |
| Chân 33 | PB17 — General-purpose I/O / AD1 |
| Chân 34 | PB16 — General-purpose I/O / AD0 |
| Chân 35 | PA31 — General-purpose I/O |
| Chân 36 | PA30 — General-purpose I/O |
| Chân 37 | PA29 — General-purpose I/O |
| Chân 38 | PA28 — General-purpose I/O |
| Chân 39 | PA27 — General-purpose I/O |
| Chân 40 | PA26 — General-purpose I/O |
| Chân 41 | PA25 — General-purpose I/O |
| Chân 42 | PA24 — General-purpose I/O |
| Chân 43 | PA23 — General-purpose I/O |
| Chân 44 | PA22 — General-purpose I/O |
| Chân 45 | PA21 — General-purpose I/O / TWI1 SDA |
| Chân 46 | PA20 — General-purpose I/O / TWI1 SCL |
| Chân 47 | PA19 — General-purpose I/O / TWI0 SDA |
| Chân 48 | PA18 — General-purpose I/O / TWI0 SCL |
| Chân 49 | PA17 — General-purpose I/O / URXD1 |
| Chân 50 | PA16 — General-purpose I/O / UTXD1 |
| Chân 51 | PA15 — General-purpose I/O / URXD0 |
| Chân 52 | PA14 — General-purpose I/O / UTXD0 |
| Chân 53 | PA13 — General-purpose I/O |
| Chân 54 | PA12 — General-purpose I/O |
| Chân 55 | PA11 — General-purpose I/O |
| Chân 56 | PA10 — General-purpose I/O |
| Chân 57 | PA9 — General-purpose I/O |
| Chân 58 | PA8 — General-purpose I/O |
| Chân 59 | PA7 — General-purpose I/O |
| Chân 60 | PA6 — General-purpose I/O |
| Chân 61 | PA5 — General-purpose I/O |
| Chân 62 | PA4 — General-purpose I/O |
| Chân 63 | PA3 — General-purpose I/O |
| Chân 64 | PA2 — General-purpose I/O |
| Chân 65 | PA1 — General-purpose I/O |
| Chân 66 | PA0 — General-purpose I/O / WKUP0 |
| Chân 67 | VDDIO — I/O supply voltage |
| Chân 68 | GND — Ground |
| Chân 69 | VDDIO — I/O supply voltage |
| Chân 70 | GND — Ground |
| Chân 71 | XIN — Crystal oscillator input |
| Chân 72 | XOUT — Crystal oscillator output |
| Chân 73 | NRST — Reset input (active low) |
| Chân 74 | TST — Test mode (per datasheet) |
| Chân 75 | JTAGSEL — JTAG selection |
| Chân 76 | DDM — USB D- data line |
| Chân 77 | DDP — USB D+ data line |
| Chân 78 | VDDIO — I/O supply voltage |
| Chân 79 | GND — Ground |
| Chân 80 | VDDCORE — Core supply output (1.2 V regulated) |
| Chân 81 | PC31 — General-purpose I/O |
| Chân 82 | PC30 — General-purpose I/O |
| Chân 83 | PC29 — General-purpose I/O |
| Chân 84 | PC28 — General-purpose I/O |
| Chân 85 | PC27 — General-purpose I/O |
| Chân 86 | PC26 — General-purpose I/O |
| Chân 87 | PC25 — General-purpose I/O |
| Chân 88 | PC24 — General-purpose I/O |
| Chân 89 | PC23 — General-purpose I/O |
| Chân 90 | PC22 — General-purpose I/O |
| Chân 91 | PC21 — General-purpose I/O |
| Chân 92 | PC20 — General-purpose I/O |
| Chân 93 | PC19 — General-purpose I/O |
| Chân 94 | PC18 — General-purpose I/O |
| Chân 95 | PC17 — General-purpose I/O |
| Chân 96 | PC16 — General-purpose I/O |
| Chân 97 | PC15 — General-purpose I/O |
| Chân 98 | PC14 — General-purpose I/O |
| Chân 99 | PC13 — General-purpose I/O |
| Chân 100 | PC12 — General-purpose I/O |
Ứng dụng tiêu biểu
ATSAM4S8CA-ANR phù hợp cho 7 Áp dụngs: Industrial Automation Controllers, USB Sensor Hubs, Motor Control Inverters, Smart Energy Meters, Automotive Body/Chassis ECUs, Industrial Gateways with CAN-USB Bridge, Data Loggers and Sensor Aggregators.
Industrial Automation Controllers
The ATSAM4S8CA-ANR is well-matched to industrial PLC and HMI controllers thanks to its 120 MHz Cortex-M4 core with single-precision FPU, 512 KB Flash for ladder-logic runtimes, and 128 KB SRAM for tag databases. The integrated CAN 2.0B controller natively interfaces with fieldbus devices (CANopen, DeviceNet) without an external transceiver IC, and the 6 UART/USART channels connect to RS-485 sensor networks via external transceivers. The 100-LQFP package exposes enough GPIO to drive optocouplers for 24V digital I/O banks. Estimated: at 80 MHz CPU clock with peripherals active, current draw stays under 25 mA, leaving thermal margin for sealed enclosure designs. The wide 1.62 V-3.6 V supply tolerance accommodates 3.3V industrial rails directly with no extra LDO required.
Được đề xuất
USB Sensor Hubs
The ATSAM4S8CA-ANR's integrated USB 2.0 Full-Speed Device port with on-chip transceiver enables compact USB sensor hubs that enumerate as composite CDC+HID or vendor-class devices. The 120 MHz Cortex-M4 core handles USB stack, ADC sampling, and HID reporting in real time, while 512 KB Flash fits a lightweight USB stack plus application code. The 12-bit ADC with up to 16 channels supports multi-sensor aggregation. Estimated: USB Full-Speed at 12 Mbps plus 1 kHz ADC sampling leaves ~70% CPU headroom for additional sensor processing. Compared to an external USB controller + MCU solution, integrating USB on-chip reduces BOM cost by approximately $0.80 and saves PCB area.
Được đề xuất
Motor Control Inverters
Three-phase motor drive applications benefit from the ATSAM4S8CA-ANR's combination of 120 MHz Cortex-M4 with FPU, 16-bit timers with PWM outputs, and 12-bit ADC capable of 1 MSPS sampling. The Cortex-M4 FPU accelerates Park/Clarke transforms for field-oriented control loops at 16 kHz PWM frequency. 512 KB Flash stores control algorithms, commutation tables, and fault-handling routines without external memory. The 100-LQFP package provides 5+ timer/counter channels with complementary PWM outputs for half-bridge gate drivers. Estimated: FOC loop execution at 16 kHz occupies ~30% CPU at 120 MHz, leaving headroom for sensorless observer algorithms. Brown-out detection at 1.62 V protects low-voltage operation during motor regeneration events.
Được đề xuất
Smart Energy Meters
The ATSAM4S8CA-ANR's 12-bit ADC with multiple channels paired with the Cortex-M4 DSP extensions enables accurate energy metering for single-phase and split-phase smart meters. The 120 MHz core computes RMS voltage/current, harmonic distortion, and power factor in real time at 4 kHz sampling. The integrated RTC with calendar supports time-of-use tariff scheduling, while 128 KB SRAM buffers 15-minute load profile data between transmissions. Estimated: at 4 kHz sampling with two ADC channels and DSP math active, power consumption stays under 40 mA at 3.3V, suitable for line-powered meter designs with auxiliary battery backup. The wide 1.62 V-3.6 V supply range supports direct operation from a 3.6V lithium backup battery during outages.
Được đề xuất
Automotive Body/Chassis ECUs
Body and chassis ECUs (door modules, seat controllers, lighting nodes) benefit from the ATSAM4S8CA-ANR's CAN 2.0B interface, 6 UART channels for LIN-bus masters, and wide GPIO count of the 100-pin LQFP. The -ANR variant is rated -40 C to +85 C industrial grade; for AEC-Q100 qualified automotive grade, engineers should consider ATSAM4S family members with explicit automotive qualification. 512 KB Flash fits CAN/LIN stack plus application logic for body controllers managing multiple door zones. Estimated: at 60 MHz CPU clock with CAN stack and LIN scheduling, current draw is around 18 mA, leaving thermal margin for under-dash installations reaching +85 C ambient.
Được đề xuất
Industrial Gateways with CAN-USB Bridge
Industrial gateways bridging CAN fieldbus to USB host benefit from the ATSAM4S8CA-ANR's combination of CAN 2.0B controller and USB 2.0 Full-Speed port. The MCU presents itself as a USB CDC-ACM device to the host while simultaneously running a CANopen or DeviceNet stack on the CAN side. 512 KB Flash accommodates both USB and CAN protocol stacks. The 120 MHz Cortex-M4 with FPU handles bus arbitration, message filtering, and forwarding with low latency. Estimated: at 1 kHz CAN message forwarding rate, CPU load stays below 25%, leaving headroom for additional Modbus TCP bridging. The 100-LQFP provides enough GPIO for status LEDs and configuration switches.
Được đề xuất
Data Loggers and Sensor Aggregators
Data logger designs use the ATSAM4S8CA-ANR's 12-bit ADC, SD-card interface via SPI, and RTC with calendar to timestamp and store sensor readings over long periods. 512 KB Flash holds the logger firmware plus a small file system, while 128 KB SRAM buffers incoming data between SD-card writes. The Cortex-M4 core runs averaging filters and peak detection in real time. Estimated: at 100 Hz sampling with two ADC channels and 1 Hz SD writes, average current is around 8 mA at 3.3V, suitable for battery-powered field deployments with sleep modes. The -40 C to +85 C operating range supports outdoor installations.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM4S8CA-ANR — 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 | ATSAM4S16CA-ANR | ATSAM4S8CA-AN | ATSAM4S8CA-AUR | ATSAM4S16CA-AN | ATSAM4S16BB-ANR | ATSAM4S8CB-ANR |
|---|---|---|---|---|---|---|---|
| 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 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 512 KB | 1 MB | 512 KB | 512 KB | 1 MB | 1 MB | 512 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| CPU Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Core | Cortex-M4 with FPU | Cortex-M4 with FPU | Cortex-M4 with FPU | Cortex-M4 with FPU | Cortex-M4 with FPU | Cortex-M4 with FPU | Cortex-M4 with FPU |
| USB | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device |
| CAN | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B |
| Supply 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 | 1.62 V to 3.6 V |
| Packaging Format | Tape & Reel | Tape & Reel | Tray | Tape & Reel | Tray | Tape & Reel | Tape & Reel |
Bảo phân biệt quan trọng
- Pin-compatible 1 MB Flash upgrade path within same Microchip SAM4S family (vsATSAM4S16CA-ANR)
- Tape-and-reel packaging for high-volume SMT assembly (vsATSAM4S8CA-AN)
- Combined USB + CAN + Cortex-M4 FPU for industrial gateways (vsPIC32MX series (8-bit/16-bit alternatives))
Ghi chú thiết kế
Estimated: at 120 MHz CPU clock with all peripherals (USB, CAN, ADC, timers) active, the ATSAM4S8CA-ANR draws roughly 28 mA from a 3.3 V supply, well within the 100-LQFP's thermal envelope. For low-power designs, switch to back-up mode with RTC running at 3 uA; restore to the gateway in 10 uS via the WKUP pin. Place a 100 nF ceramic bypass capacitor on each VDDIO pin and a bulk 4.7 uF ceramic on VDDIN to suppress switching transients from the on-chip 1.2 V regulator.
Use a 4-layer PCB stack-up with continuous ground plane beneath the 100-LQFP for thermal dissipation and EMI suppression. Route the analog AVSS pin to a star ground tied to the PCB ground plane at a single point near the analog AVSS pin; do not daisy-chain analog and digital grounds. Estimated: a 4-layer PCB with 1 oz copper on top/bottom layers keeps theta_JA under 40 C/W, allowing continuous 120 MHz operation at +85 C ambient. Place the crystal XIN/XOUT traces within 5 mm of the MCU and guard them with a ground pour.
The USB D+/D- (DDP/DDM) traces must be 90 ohm differential, length-matched within 150 mil, and routed over a continuous ground plane. Add a 27 ohm series resistor on each USB data line close to the MCU to suppress reflections per USB 2.0 spec. For CAN bus, route CANH/CANL as 120 ohm differential and add a 120 ohm termination resistor at each end of the bus. Estimated: with proper 90 ohm USB impedance, signal-eye-diagram compliance at 12 Mbps Full-Speed passes without re-tuning.
Do not connect the NRST pin directly to VDDIO without a reset circuit; use a 10 kohm pull-up plus a 100 nF capacitor to ground for proper power-on reset timing per Microchip datasheet 60001419B. Do not exceed 3.6 V on any VDDIO pin - the SAM4S lacks 5V tolerance and will latch-up. Avoid routing ADC input traces near PWM outputs to minimize switching noise coupling into ADC samples; use separate analog and digital ground zones joined at a single point.
Thông tin tuân thủ
RoHS and lead-free per Microchip product page. Industrial -40C to +85C grade; AEC-Q100 not qualified for this specific -ANR variant. Conflict minerals compliant per Microchip policy.
