ATSAM4S16CA-AU - Cortex-M4 120MHz 1MB Flash MCU | Microchip
부품 번호: ATSAM4S16CA-AU ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $8.2 | $8.20 |
| 10 | $7.45 | $74.50 |
| 100 | $6.7 | $670.00 |
| 500 | $6.1 | $3,050.00 |
| 1,000 | $5.55 | $5,550.00 |
ATSAM4S16CA-AU 개요
A microcontroller (MCU) is a single integrated circuit that combines a processor core, program memory, data memory, and a rich set of peripherals into one chip, forming the brain of an embedded system. The ATSAM4S16CA-AU belongs to the SAM4S family within the broader hierarchy of ARM-based flash MCUs: Cortex-M4 core -> 32-bit RISC microcontroller -> SAM4S series -> Microchip (formerly Atmel) AT91/SAM portfolio.
Key features include an ARM Cortex-M4 core with a 2 Kbyte cache and Memory Protection Unit (MPU), a hardware DSP instruction set, and the Thumb-2 instruction set for high code density. The 120 MHz operating frequency combined with DSP instructions makes it significantly faster than the Cortex-M3-based SAM3S parts it can replace. Peripherals cover EBI/EMI external bus, I2C (TWI), IrDA, MMC/SD, SPI, SSC, and UART/USART serial connectivity, enabling flexible interfacing to displays, sensors, and storage.
A major engineering advantage is pin-to-pin compatibility with the SAM4N, SAM3S, SAM3N (48-, 64- and 100-pin versions) and legacy SAM7S (64-pin) families, allowing designers to migrate designs or respond to shortages without PCB respins. The 1.2 V/3.3 V supply options and industrial temperature range suit harsh environments.
Typical applications include industrial control and automation, consumer products with human-machine interfaces, metering systems, and IoT sensor nodes that benefit from DSP capability and large 1 MB flash for complex firmware.
When designing, plan flash bank usage and take advantage of the parallel input/output (PIO) data capture mode for high-speed data acquisition tasks.
This page synthesizes distributor availability data, family cross-references, and practical migration guidance not found in the manufacturer datasheet alone.
드롭인 대체품: ATSAM4S16CA-AU — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ATSAM4S16CA-AU (동일 폼 팩터 및 풋프린트) — 차이점: RoHS Status, Series, Core Processor, Packaging, Flash Memory.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ATSAM4SD16CA-AU
✅ 드롭인✓ 재고 있음
$5.55 / 개
데이터시트 보기 →ATSAM4N16CA-AU
✅ 드롭인✓ 재고 있음
$6.15 / 개
데이터시트 보기 →ATSAM4S8CA-AU
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$5.74 / 개
데이터시트 보기 →ATSAM4S16CB-AU
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
ATSAM4S16CA-CFNR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ATSAM4S16CA-AU 최대 정격 & 전기적 특성
| Core Processor | ARM Cortex-M4 |
| Core Size | 32-bit |
| Maximum Clock Speed | 120 MHz |
| Flash Memory | 1 MB (1M x 8) |
| SRAM | 128 KB |
| Cache | 2 Kbytes |
| Memory Protection Unit | Yes (MPU) |
| DSP Instruction Set | Yes |
| Instruction Set | Thumb-2 |
| Connectivity | EBI/EMI, I2C, IrDA, MMC, SPI, SSC, UART/USART |
| 공급 전압 | 1.2 V / 3.3 V |
| 패키지 | 100-LQFP (14 x 14 mm) |
| 실장 유형 | Surface Mount |
| 동작 온도 범위 | Industrial (-40C to +85C) |
| Life Cycle Stage | Active |
| RoHS 상태 | Compliant (Green package per Mouser: LQFP, GREEN, IND TEMP) |
| Series | SAM4S |
ATSAM4S16CA-AU 100-lqfp (14 x 14 mm) 핀 구성 가이드
ATSAM4S16CA-AU(100-lqfp (14 x 14 mm) 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: ATSAM4S16CA-AU.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
ATSAM4S16CA-AU 적합 용도: 6 애플리케이션s: Industrial Control and Automation, Smart Metering, Consumer Human-Machine Interfaces, IoT Sensor Nodes, Test and Measurement Instruments, Legacy SAM7S Design Migration.
Industrial Control and Automation
The ATSAM4S16CA-AU fits industrial control nodes because its 120 MHz Cortex-M4 core with hardware DSP instructions executes PID loops and digital filters deterministically, while the 1 MB flash holds protocol stacks (Modbus, CAN gateways) with headroom for field updates. The EBI/EMI external bus interfaces memory-mapped peripherals and LCDs, and multiple UART/USART, SPI, and I2C ports connect PLC-style I/O modules. The industrial temperature grade (-40C to +85C) and MPU support robust operation in factory-floor environments, and pin compatibility with SAM3S/SAM7S lets existing designs upgrade compute without a PCB respin.
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Smart Metering
Metering designs benefit from the ATSAM4S16CA-AU's combination of large 1 MB flash for metrology firmware and DSP instructions for FFT-based power-quality analysis at 120 MHz. The 128 KB SRAM buffers measurement data between communication sessions, while dual UART/USART, SPI, and I2C links drive optical, RF, or PLC communication modules. The green LQFP package meets utility environmental requirements, and the single-chip integration reduces BOM cost versus separate MCU plus coprocessor architectures. Firmware over-the-air update schemes fit comfortably in the flash with dual image regions reserved.
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Consumer Human-Machine Interfaces
For appliances, thermostats, and control panels, the ATSAM4S16CA-AU drives graphic and touch interfaces using the EBI/EMI bus for TFT LCD modules and its PIO parallel capture mode for high-speed data intake. The 120 MHz core renders simple GUIs without a dedicated graphics chip, and the 2 Kbyte cache smooths execution from flash. SSC, SPI, and I2C connect audio feedback, capacitive touch controllers, and encoders. Because it is pin-compatible with the lower-cost SAM3S family, manufacturers can offer feature-reduced SKUs on the identical PCB, amortizing tooling across product tiers.
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IoT Sensor Nodes
The ATSAM4S16CA-AU serves as the processing hub of IoT sensor nodes where edge pre-processing is required: the Cortex-M4 DSP instructions accelerate sensor fusion and FFT analysis locally, reducing radio traffic. Multiple USARTs and SPI ports connect wireless modules and low-power sensors via I2C, and the 1 MB flash stores the full network stack plus application logic. Designs pair it with a separate radio for connectivity while the MCU handles acquisition, filtering, and protocol framing, achieving a balanced power-performance profile for battery-buffered industrial sensors.
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Test and Measurement Instruments
Handheld and bench instruments use the ATSAM4S16CA-AU for front-panel control, display driving through the EBI/EMI bus, and signal processing with the DSP instruction set. The 120 MHz core with 2 Kbyte cache sustains responsive measurement loops, while the PIO parallel capture mode ingests data from external ADC front ends at high rates. The 1 MB flash stores calibration tables, multi-protocol support, and feature-licensed firmware variants. Industrial temperature rating and the MPU enable reliable, robust firmware partitioning in products that see field abuse and long duty cycles.
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Legacy SAM7S Design Migration
Designers maintaining ARM7TDMI-based SAM7S products can migrate to the ATSAM4S16CA-AU with minimal hardware change, since Microchip documents pin-to-pin compatibility between SAM4S and SAM7S legacy devices in the 64-pin versions and with SAM3S/SAM3N/SAM4N across 48-, 64-, and 100-pin versions. The migration yields roughly an order-of-magnitude performance uplift (120 MHz Cortex-M4 with DSP versus ARM7TDMI) plus double the flash (1 MB), extending product life and enabling new features on existing PCBs during shortage-driven redesigns.
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추천 제품 요약
엔지니어링 참조 데이터: ATSAM4S16CA-AU — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ATSAM4SD16CA-AU | ATSAM4N16CA-AU | ATSAM4S8CA-AU | ATSAM4S16CB-AU | ATSAM4S16CA-CFNR |
|---|---|---|---|---|---|---|
| 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-BGA - different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Max Speed | Cortex-M4 / 120 MHz | Cortex-M4 / 120 MHz | Cortex-M4 / 120 MHz | Cortex-M4 / 120 MHz | Cortex-M4 / 120 MHz | Cortex-M4 / 120 MHz |
| Flash Memory | 1 MB | 1 MB (dual-bank) | 1 MB | 512 KB | 1 MB | 1 MB |
| Cache / MPU | 2 KB cache + MPU | 2 KB cache + MPU | No cache + MPU | 2 KB cache + MPU | 2 KB cache + MPU | 2 KB cache + MPU |
| PIO Parallel Capture | Yes | Yes | No | Yes | Yes | Yes |
| Lifecycle Status | Active | Active | Active | Active | Active | Active |
주요 차별점
- Cache + DSP instructions for signal-processing workloads (vs ATSAM4N16CA-AU)
- Fail-safe firmware update option in same footprint (vs ATSAM4SD16CA-AU)
- Full 1 MB flash headroom vs smaller family members (vs ATSAM4S8CA-AU)
설계 노트
The 100-pin LQFP (0.5 mm pitch) requires careful solder-paste stencil design: use 0.10-0.12 mm laser-cut apertures and inspect with AOI after reflow to catch bridging on the dense periphery. The ATSAM4S16CA-AU footprint is shared with SAM3S/SAM3N/SAM4N 100-pin parts, so design the land pattern once and qualify multiple MCU SKUs for supply-chain flexibility. Keep the exposed decoupling capacitors (100 nF per VDD/VDDIO pin plus bulk 10 uF) placed within 2 mm of the pins per the SAM4S family datasheet power distribution guidance.
The SAM4S family operates from 1.8V-3.3V class supplies (FindIC lists 1.2V/3.3V and Utmel lists 1.8V/2.5V/3.3V options depending on document revision); verify the VDDCORE/VDDIO scheme against the latest Microchip datasheet revision before finalizing the regulator. Estimated: at 120 MHz full-speed flash execution, current consumption is on the order of tens of mA - budget your LDO or buck converter with margin and consider the low-power modes (wait, sleep, backup) available on SAM4S to cut average consumption in battery-buffered designs.
Do not assume code written for SAM3S or SAM7S runs unmodified: the Cortex-M4 core, clock tree, and peripheral register maps differ, and the SAM4S adds a cache that changes timing behavior. Use the pin-to-pin compatibility for hardware reuse but port firmware through the Microchip ASF/HAL libraries. When substituting the ATSAM4SD16CA-AU, remember flash programming and swap behavior differs (dual-bank), so bootloaders must be revalidated. Also verify the exact speed grade and temperature suffix on the ordering code - AU vs CF/BGA variants are not interchangeable on the same PCB.
규정 준수 정보
Mouser listing describes the package as 'LQFP, GREEN, IND TEMP, MRL A', where GREEN denotes Microchip's RoHS-compliant green package. Formal REACH, halogen-free, and conflict-minerals declarations should be obtained from Microchip's compliance portal.