ATSAM4S16CA-ANR - Cortex-M4 MCU 120MHz 1MB Flash | Microchip
MPN： ATSAM4S16CA-ANR ✓ 啟用中ATSAM4S16CA-ANR 概覽
A microcontroller (MCU) is a single-chip embedded computer that integrates a processor core, program memory, data memory, and peripherals on one die. Within the power-management hierarchy of embedded systems, general-purpose MCUs like the SAM4S family form the central control layer, executing application firmware while driving communication, sensing, and actuation peripherals.
Key features include the Cortex-M4 core with DSP instructions and Thumb-2 instruction set, a Memory Protection Unit (MPU), dual-bank Flash supporting safe in-application programming, and a Security Bit plus Flash lock for IP protection. According to Microchip, power consumption is 200 uA/MHz, and the supply range of 1.62V to 3.6V enables battery and 3.3V industrial designs.
The SAM4S16 architecture pairs the Cortex-M4 with a multi-layer bus matrix, DMA-capable peripherals such as UART, USART, SPI, I2C/TWI, and a 12-bit ADC, sustaining deterministic real-time behavior for control loops while DSP instructions accelerate filtering and math-intensive routines. The parallel input/output (PIO) data-capture mode supports high-throughput digital acquisition.
Typical applications include industrial automation controllers, smart energy metering, portable/battery-powered devices, and consumer/POS equipment, where the combination of 120 MHz performance, low power, and rich connectivity fits cost-sensitive designs.
Design consideration: the SAM4S series is pin-to-pin compatible with SAM3N, SAM3S, SAM4N, and legacy SAM7S (64-pin versions), so layouts can be upgraded without PCB rework; validate VDDIO levels when migrating from 5V-tolerant legacy parts.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 ATSAM4S16CA-ANR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATSAM4S16CA-ANR （相同外形與佔位） — 差異在於 RoHS Status, Package, Packaging, Flash Memory, Instruction Set.
ATSAM4S16CA-CFNR
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAM4S16CB-ANR
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAM4SA16CA-ANR
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4E16CA-ANR
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAM4N16CA-CFUR
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4S16CA-AU
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4S16CA-ANR 最大額定值與電氣特性
| Core | ARM Cortex-M4 |
| Core Size | 32-bit |
| 最大時脈頻率 | 120 MHz |
| Flash Memory | 1 MB (1024 KB, dual-bank, with ECC) |
| SRAM | 128 KB |
| Supply Voltage Range | 1.62 V to 3.6 V |
| Power Consumption | 200 uA/MHz |
| Instruction Set | Thumb-2 with DSP instructions |
| Memory Protection Unit | Yes (MPU) |
| Security | Security Bit and Flash lock |
| 封裝 | 100-LQFP (14x14 mm) |
| 安裝類型 | Surface Mount |
| Temperature Grade | Industrial |
| Terminal Form | Gull Wing |
| Packaging | Tape & Reel (T/R) |
| Pin Compatibility | SAM3N, SAM3S, SAM4N, SAM7S (64-pin versions for SAM7S) |
| RoHS 狀態 | Compliant (LQFP GREEN) |
ATSAM4S16CA-ANR 100-lqfp (14x14 mm) 腳位配置指南
ATSAM4S16CA-ANR（100-lqfp (14x14 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATSAM4S16CA-ANR.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATSAM4S16CA-ANR 適用於 6 應用s: Industrial Automation Controllers, Smart Energy Metering, Portable and Battery-Powered Devices, IoT Sensor Nodes, Consumer and POS Equipment, Motor Control and Embedded Systems.
Industrial Automation Controllers
The ATSAM4S16CA-ANR fits industrial control nodes where deterministic 120 MHz Cortex-M4 execution, 1 MB dual-bank Flash for field-updatable firmware, and ECC-protected program memory matter. Industrial-temperature qualification (-AN suffix) supports factory-floor environments, while 3.3V operation simplifies integration with PLC I/O. DMA-driven USART, SPI, and TWI peripherals offload the core for Modbus/RTU communication and sensor polling, and the PIO capture mode acquires parallel digital streams without CPU overhead.
推薦
Smart Energy Metering
Metering designs exploit the 200 uA/MHz efficiency and 1.62V-3.6V supply of the ATSAM4S16CA-ANR for always-on metrology front ends. The Cortex-M4 DSP instructions (single-cycle MAC, SIMD) accelerate FFT and RMS energy calculations, while the 12-bit ADC samples voltage/current channels. Dual-bank Flash with ECC permits secure firmware updates in the field, and the Security Bit plus Flash lock protect calibration tables and billing IP from unauthorized readout.
推薦
Portable and Battery-Powered Devices
Handheld instruments, data loggers, and POS terminals benefit from the ATSAM4S16CA-ANR balance of 120 MHz responsiveness and 200 uA/MHz consumption. The 1.62V low end of the supply range allows direct operation from Li-ion cell stacks via simple regulation, and wait/sleep modes cut average current between user interactions. USB device connectivity on the SAM4S family handles charging status reporting and PC communication, while 128 KB SRAM buffers logging data during offline periods.
推薦
IoT Sensor Nodes
The ATSAM4S16CA-ANR serves as the local processing hub in IoT nodes, aggregating ADC sensor channels and pushing data over SPI/UART-connected radio modules. DSP instructions run local filtering and anomaly detection before transmission, reducing radio duty cycle and battery load. The MPU enables task isolation in RTOS-based nodes, and 1 MB Flash accommodates OTA-update stacks such as dual-image bootloader schemes, making the part a robust choice for industrial sensing gateways.
推薦
Consumer and POS Equipment
Point-of-sale terminals, barcode scanners, and consumer appliances use the ATSAM4S16CA-ANR for its USB device interface, responsive 120 MHz core, and cost-effective 100-pin LQFP integration. The Thumb-2 code density keeps firmware compact within 1 MB Flash, Flash lock protects payment-related code, and gull-wing surface-mount terminals support high-volume assembly. Pin compatibility with SAM3S lets consumer platforms reuse proven PCB footprints across product generations.
推薦
Motor Control and Embedded Systems
Low- to mid-power motor drives use the ATSAM4S16CA-ANR to execute FOC control loops, with Cortex-M4 DSP instructions computing Park/Clarke transforms within PWM periods. PWM peripherals generate complementary drive signals while the ADC synchronizes current sampling, and the 120 MHz core leaves margin for supervisory logic and communication. The industrial temperature rating and ECC Flash ensure reliability in continuous-duty embedded systems such as pumps, fans, and robotics axes.
推薦
推薦產品摘要
工程參考資料，適用於 ATSAM4S16CA-ANR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATSAM4S16CA-CFNR | ATSAM4S16CB-ANR | ATSAM4E16CA-ANR | ATSAM4N16CA-CFUR |
|---|---|---|---|---|---|
| Package | 100-LQFP (14x14 mm) | 100-LQFP - same | 100-LQFP - same | 100-LQFP - same | 100-LQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Clock | Cortex-M4, 120 MHz | Cortex-M4, 120 MHz | Cortex-M4, 120 MHz | Cortex-M4, 120 MHz | Cortex-M4, 100 MHz (lower speed) |
| Flash | 1 MB (dual-bank, ECC) | 1 MB | 2 MB | 1024 KB | 1024 KB |
| Ethernet MAC | No | No | No | Yes (SAM4E family) | No |
| USB Device | Yes (SAM4S family) | Yes | Yes | Yes (USB HS) | No (SAM4N has no USB) |
| Temperature Grade | Industrial (-AN) | Industrial (CFN) | Industrial (-AN) | Industrial (-AN) | Industrial (CFU) |
| Packaging | Tape & Reel (R) | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
主要差異化特點
- Larger Flash capacity option in the same footprint (對比ATSAM4S16CB-ANR)
- USB device connectivity (對比ATSAM4N16CA-CFUR)
- Lowest power at reduced clock (對比ATSAM4E16CA-ANR)
設計說明
The ATSAM4S16CA-ANR accepts 1.62V-3.6V on VDDCORE/VDDIO domains. Budget active current as roughly 200 uA/MHz x 120 MHz = approximately 24 mA (Estimated: derived from the Microchip-stated 200 uA/MHz figure at full-speed operation), plus peripheral and I/O loads. Decouple each VDD pin with 100 nF ceramic capacitors placed within 2 mm of the pin, plus bulk 10 uF at the regulator. If powered from a Li-ion cell, use a low-Iq LDO or buck converter to exploit the wide supply range.
The 100-pin LQFP (0.5 mm pitch) requires careful fan-out: use 4-mil traces for breakouts and place the crystal within 10 mm of the XIN/XOUT pins with guard ground. Because the SAM4S is pin-to-pin compatible with SAM3S/SAM4N, design the footprint once and reuse it across family generations - but verify the peripheral multiplexing table when changing devices, since pin functions differ even though ball-for-ball positions match.
Do not assume hardware FPU: the SAM4S16 Cortex-M4 (without F suffix) executes floating point in software. Prefer fixed-point or the built-in DSP instructions for performance-critical loops. Also remember dual-bank Flash: design your bootloader to program the inactive bank and swap banks on reset, so a power failure during update never bricks the unit. Enable the Security Bit only after final validation - it permanently disables boundary-scan debug access.
合規資訊
Mouser lists the part as LQFP GREEN (lead-free green packaging). REACH, halogen-free, and conflict-minerals statements should be obtained from Microchip compliance documentation.