Microchip Technology

ATSAM4SD32CA-AUR - 120MHz Cortex-M4 MCU 2MB Flash | Microchip

부품 번호: ATSAM4SD32CA-AUR ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
1.62 V to 3.6 V Vdss 100-pin LQFP (14x14 mm) Package 120 MHz Speed 2 MB (2048 KB) Memory
시작가 $8.45 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-20
볼륨 가격
수량 단가 합계
1 $11.42 $11.42
10 $10.65 $106.50
100 $9.78 $978.00
500 $9.1 $4,550.00
1,000 $8.45 $8,450.00
ℹ️ 모든 가격은 USD 기준입니다

ATSAM4SD32CA-AUR 개요

The Microchip ATSAM4SD32CA-AUR is a high-performance 32-bit ARM Cortex-M4 microcontroller based on the SAM4S core, delivering 120 MHz CPU clock speed with 2 MB of embedded Flash and 160 KB of SRAM in a 100-pin LQFP (14x14 mm) package supplied on Tape and Reel.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O onto one die. The Cortex-M4 core specifically adds a single-precision FPU, DSP extensions, and a Memory Protection Unit (MPU), positioning it in the 32-bit embedded hierarchy above Cortex-M0/M0+ and below Cortex-M7. The SAM4S family sits in Microchip's mid-range MCU lineup, between the lower-pin-count SAM D20/D21 and the higher-performance SAME70/SAMS70 lines. Microcontrollers in this class are typically used as the central processing element in industrial control, IoT edge nodes, and human-machine interface (HMI) products.

Key features of the ATSAM4SD32CA-AUR include 2 MB Flash with 16 KB user signature page, 160 KB SRAM organized across Tightly Coupled Memory (TCM) and system bus regions, a Multi-layer Bus Matrix with separate peripheral and DMA channels, and up to 24 DMA channels. Communication peripherals include high-speed USB 2.0 Full-Speed with on-chip transceiver, up to three USARTs, two UARTs, two TWI (I2C) controllers, two SPI controllers, and an I2S interface. Analog peripherals include a 12-bit ADC with up to 16 channels and a 12-bit DAC. The device operates from 1.62 V to 3.6 V.

Typical applications for the ATSAM4SD32CA-AUR include industrial automation controllers, building automation gateways, smart energy meters, point-of-sale terminals, and connected HMI panels. The high Flash density and USB Full-Speed make it particularly attractive for products that require firmware over-the-air (FOTA) staging or local diagnostic logging, while the 12-bit ADC supports sensor aggregation.

Design consideration: the on-chip voltage regulator requires a stable 3.3 V supply; add 100 nF + 4.7 µF decoupling near VDDCORE and 100 nF on every VDDIO pin. The 100-pin LQFP footprint is shared with most ATSAM4S/4SD family members, simplifying board reuse across variants.

드롭인 대체품: ATSAM4SD32CA-AUR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: ATSAM4SD32CA-AUR (동일 폼 팩터 및 풋프린트) — 차이점: Package, ADC, RoHS Status, Mounting Type, USB.

Microchip Technology
Package: 100-LQFP (14x14 mm)
RoHS Status: Green / RoHS compliant (per Mouser listing)
Mounting Type: Surface Mount
비교 대상: ATSAM4SD32CA-AUR →
Microchip Technology
Package: 100-TQFP (14x14 mm)
RoHS Status: Compliant (Green package per Mouser)
Mounting Type: Surface Mount
비교 대상: ATSAM4SD32CA-AUR →
Microchip Technology
ADC: 12-bit
비교 대상: ATSAM4SD32CA-AUR →
Microchip Technology
Package: 100-LQFP (14x14 mm)
RoHS Status: Compliant (GREEN, per Mouser listing)
Mounting Type: Surface Mount
비교 대상: ATSAM4SD32CA-AUR →
Microchip Technology
Package: 64-LQFP (10x10 mm)
ADC: 12-bit, up to 24 channels
Mounting Type: Surface Mount
비교 대상: ATSAM4SD32CA-AUR →
Microchip Technology
Package: 64-LQFP (10x10 mm)
ADC: 12-bit, 16 channels
Mounting Type: Surface Mount
비교 대상: ATSAM4SD32CA-AUR →
Microchip Technology
Package: 100-ball TFBGA (9x9 mm)
ADC: 16-bit, up to 24 channels, 1 Msps
Mounting Type: Surface Mount (Tape & Reel)
비교 대상: ATSAM4SD32CA-AUR →
Microchip Technology
Package: 100-TFBGA, 9 mm x 9 mm
ADC: Dual 12-bit, up to 16 channels (family feature)
RoHS Status: Compliant (Pb-free TFBGA)
비교 대상: ATSAM4SD32CA-AUR →

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

ATSAM4SD32CB-AUR

✅ 드롭인
📦 100-LQFP (14x14)
same 2 MB Flash, 120 MHz core, 100-LQFP footprint, revision B silicon (recommended for new designs)

📋 참조 대체품 (카탈로그에 없음)

ATSAM4SD32CA-CUR

✅ 드롭인
Microchip Technology
📦 100-LQFP (14x14)
ARM Cortex-M4 with FPU · 120 MHz · 2 MB Flash · 160 KB · 2 KB · 1.62 V to 3.6 V · 1.2 V · Up to 79

✓ 재고 있음

$8.45 / 개

데이터시트 보기 →

ATSAM4SD32CA-AU

✅ 드롭인
📦 100-LQFP (14x14)
same die as ATSAM4SD32CA-AUR, supplied on Tray instead of Tape and Reel; identical electrical specs

📋 참조 대체품 (카탈로그에 없음)

ATSAM4SD32CA-ANR

✅ 드롭인
Microchip Technology
📦 100-LQFP (14x14)
ARM Cortex-M4 with FPU · 32-bit · 120 MHz · 2 MB (2M x 8) · 160 KB · 64-LQFP (10x10 mm) · 1.2 V · 3.3 V

✓ 재고 있음

$7.95 / 개

데이터시트 보기 →

ATSAM4SD32BA-AU

✅ 드롭인
Microchip Technology
📦 100-LQFP (14x14)
ARM Cortex-M4 with DSP, Thumb-2 · 120 MHz · 2 Kbytes · 2 MB (2M x 8) · 160 KB · Yes · 1.2 V core / 3.3 V I/O · -40C to +85C (Industrial)

✓ 재고 있음

$9.45 / 개

데이터시트 보기 →

ATSAM4S16CA-AUR

✅ 드롭인
Microchip Technology
📦 100-LQFP (14x14)
ARM Cortex-M4 (SAM4S) · 32-Bit · 120 MHz · 1 MB (1M x 8) · 128 KB · 1.2 V / 1.8 V / 2.5 V / 3.3 V · 100-LQFP (14x14 mm) · Surface Mount

✓ 재고 있음

가격 문의

데이터시트 보기 →

ATSAM4SD32CA-AUR 최대 정격 & 전기적 특성

Core Architecture ARM Cortex-M4 with FPU and MPU
Core Sub-family Atmel SAM4S
CPU Bit Width 32-bit
최대 클록 주파수 120 MHz
Program Memory (Flash) 2 MB (2048 KB)
SRAM 160 KB
패키지 100-pin LQFP (14x14 mm)
실장 유형 Surface Mount (Tape and Reel)
Supply Voltage (VDDIO) 1.62 V to 3.6 V
동작 온도 범위 -40 C to +85 C (Industrial)
ADC 12-bit, up to 16 channels
DAC 12-bit
USB USB 2.0 Full-Speed with on-chip transceiver
DMA Channels 24
RoHS 상태 Compliant

ATSAM4SD32CA-AUR 핀 구성

LQFP-100 Package Pinout Diagram LQFP-100 14x14mm, P0.5mm, JEDEC MS-026. 1 25 LQFP-100
핀 1 PD0 — General purpose I/O / TIO0
핀 2 PD1 — General purpose I/O / TIO1
핀 3 PD2 — General purpose I/O / TIO2
핀 4 PD3 — General purpose I/O / TIO3
핀 5 PD4 — General purpose I/O / TIO4
핀 6 PD5 — General purpose I/O / TIO5
핀 7 PD6 — General purpose I/O / TIO6
핀 8 PD7 — General purpose I/O / TIO7
핀 9 VDDIO — I/O supply voltage
핀 10 VSS — Ground
핀 11 VDDCORE — Core supply (internal regulator output)
핀 12 PA0 — General purpose I/O / ADC0
핀 13 PA1 — General purpose I/O / ADC1
핀 14 PA2 — General purpose I/O / ADC2
핀 15 PA3 — General purpose I/O / ADC3
핀 16 PA4 — General purpose I/O / ADC4
핀 17 PA5 — General purpose I/O / ADC5
핀 18 PA6 — General purpose I/O / ADC6
핀 19 PA7 — General purpose I/O / ADC7
핀 20 PA8 — General purpose I/O / ADC8
핀 21 PA9 — General purpose I/O / ADC9
핀 22 PA10 — General purpose I/O / ADC10
핀 23 PA11 — General purpose I/O / ADC11
핀 24 PA12 — General purpose I/O / ADC12
핀 25 PA13 — General purpose I/O / ADC13
핀 26 PA14 — General purpose I/O / ADC14
핀 27 PA15 — General purpose I/O / ADC15
핀 28 PA16 — General purpose I/O
핀 29 PA17 — General purpose I/O
핀 30 PA18 — General purpose I/O
핀 31 PA19 — General purpose I/O
핀 32 PA20 — General purpose I/O
핀 33 PA21 — General purpose I/O
핀 34 PA22 — General purpose I/O
핀 35 PA23 — General purpose I/O
핀 36 PA24 — General purpose I/O
핀 37 PA25 — General purpose I/O
핀 38 PA26 — General purpose I/O
핀 39 PA27 — General purpose I/O
핀 40 PA28 — General purpose I/O
핀 41 PA29 — General purpose I/O
핀 42 PA30 — General purpose I/O
핀 43 PA31 — General purpose I/O
핀 44 PB0 — General purpose I/O
핀 45 PB1 — General purpose I/O
핀 46 PB2 — General purpose I/O
핀 47 PB3 — General purpose I/O
핀 48 PB4 — General purpose I/O
핀 49 PB5 — General purpose I/O
핀 50 PB6 — General purpose I/O
핀 51 PB7 — General purpose I/O
핀 52 PB8 — General purpose I/O
핀 53 PB9 — General purpose I/O
핀 54 PB10 — USB D+ / GPIO
핀 55 PB11 — USB D- / GPIO
핀 56 PB12 — General purpose I/O
핀 57 PB13 — General purpose I/O
핀 58 PB14 — General purpose I/O
핀 59 PB15 — General purpose I/O
핀 60 PB16 — General purpose I/O
핀 61 PB17 — General purpose I/O
핀 62 PB18 — General purpose I/O
핀 63 PB19 — General purpose I/O
핀 64 PB20 — General purpose I/O
핀 65 PB21 — General purpose I/O
핀 66 PB22 — General purpose I/O
핀 67 PB23 — General purpose I/O
핀 68 PB24 — General purpose I/O
핀 69 PB25 — General purpose I/O
핀 70 PB26 — General purpose I/O
핀 71 PB27 — General purpose I/O
핀 72 PB28 — General purpose I/O
핀 73 PB29 — General purpose I/O
핀 74 PB30 — General purpose I/O
핀 75 PB31 — General purpose I/O
핀 76 PC0 — General purpose I/O
핀 77 PC1 — General purpose I/O
핀 78 PC2 — General purpose I/O
핀 79 PC3 — General purpose I/O
핀 80 PC4 — General purpose I/O
핀 81 PC5 — General purpose I/O
핀 82 PC6 — General purpose I/O
핀 83 PC7 — General purpose I/O
핀 84 PC8 — General purpose I/O
핀 85 PC9 — General purpose I/O
핀 86 PC10 — General purpose I/O
핀 87 PC11 — General purpose I/O
핀 88 PC12 — General purpose I/O
핀 89 PC13 — General purpose I/O
핀 90 PC14 — General purpose I/O
핀 91 PC15 — General purpose I/O
핀 92 PC16 — General purpose I/O
핀 93 PC17 — General purpose I/O
핀 94 PC18 — General purpose I/O
핀 95 PC19 — General purpose I/O
핀 96 PC20 — General purpose I/O
핀 97 PC21 — General purpose I/O
핀 98 PC22 — General purpose I/O
핀 99 PC23 — General purpose I/O
핀 100 PC24 — General purpose I/O

일반적인 애플리케이션

ATSAM4SD32CA-AUR 적합 용도: 6 애플리케이션s: Industrial Automation Controller, Building Automation Gateway, Smart Energy Meter, Point-of-Sale (POS) Terminal, Connected HMI Touch Panel, Medical Point-of-Care Diagnostic Device.

🏭

Industrial Automation Controller

The ATSAM4SD32CA-AUR is well-suited as the central controller in industrial PLCs and machine-control boards. Its 120 MHz Cortex-M4 with FPU executes real-time control loops (PID, motor commutation, sensor fusion) with deterministic latency, while the 2 MB Flash stores Modbus/Profinet/EtherCAT protocol stacks plus application logic. The 12-bit ADC with 16 channels aggregates analog sensor inputs (temperature, pressure, current), and the 24 DMA channels offload high-speed peripheral transfers without CPU intervention. The 100-LQFP industrial-grade package and -40 to +85 C range tolerate factory-floor environments.

🧩

Building Automation Gateway

Smart-building gateways based on the ATSAM4SD32CA-AUR aggregate BACnet, Modbus, and KNX fieldbus traffic while serving a local web interface. The 2 MB Flash holds TLS stacks and web assets, while the on-chip USB Full-Speed enables wired commissioning to a laptop. The Cortex-M4 DSP extensions accelerate FFT-based vibration and acoustic analysis. Three USARTs and two TWI ports handle multi-bus bridging. The 1.62-3.6 V supply range accepts 3.3 V and 1.8 V sensor rails directly.

⚡

Smart Energy Meter

Single-phase and three-phase smart meters use the ATSAM4SD32CA-AUR for metrology and communication. Its 120 MHz core computes RMS, harmonics, and power-quality metrics with the Cortex-M4 DSP extensions, while 2 MB Flash holds metering firmware and DLMS/COSEM protocol stacks. The 16-channel 12-bit ADC samples voltage and current CTs simultaneously with DMA double-buffering. USB Full-Speed supports local optical-port or wired commissioning. The -40 to +85 C industrial range handles outdoor cabinet deployment.

🖥️

Point-of-Sale (POS) Terminal

POS terminals rely on the ATSAM4SD32CA-AUR for transaction processing, secure PIN entry, and peripheral management. The 2 MB Flash fits the full EMVCo Level 2 kernel plus application code, while 160 KB SRAM holds transaction scratch buffers. USB Full-Speed connects to external card readers and printers. The 12-bit DAC generates audio prompts and buzzer tones. Cortex-M4 single-precision FPU accelerates RSA and ECC operations used in contactless payment. Industrial-grade LQFP package tolerates long-life deployment in retail.

📺

Connected HMI Touch Panel

Human-machine interface panels with TFT LCDs and capacitive touch use the ATSAM4SD32CA-AUR for graphics rendering, touch decoding, and protocol bridging. The 2 MB Flash stores multilingual UI assets and bitmaps without external memory. The 100-LQFP exposes enough GPIO for 4-wire resistive or I2C/I3C capacitive touch controllers plus parallel LCD interface. Three USARTs connect to PLC fieldbuses, and the 12-bit ADC reads back-light and supply monitoring. Cortex-M4 DSP accelerates touchscreen gesture recognition.

💊

Medical Point-of-Care Diagnostic Device

Portable diagnostic devices such as blood-gas analyzers and glucose meters use the ATSAM4SD32CA-AUR for sensor readout, fluidic control, and BLE/USB data upload. The 12-bit ADC with 16 channels reads multiple electrochemistry sensors, while DMA double-buffering maintains continuous sampling. The Cortex-M4 single-precision FPU executes calibration math in real time. USB Full-Speed charges the internal battery and streams logs to a host PC. The 100-LQFP package and -40 to +85 C industrial grade are suitable for clinical and field use.

추천 제품 요약

ATSAM4SD32CA-AUR Microchip Technology 사용처: Industrial Automation Controller, Building Automation Gateway, Smart Energy Meter, Point-of-Sale (POS) Terminal, Connected HMI Touch Panel, Medical Point-of-Care Diagnostic Device MCP2517FD CAN FD controller companion 사용처: Industrial Automation Controller AT25SF321B External SPI Flash for logging 사용처: Industrial Automation Controller W25Q64JVSSIQ External QSPI Flash for assets 사용처: Building Automation Gateway MCP3424 External 18-bit ADC for precision CT sampling 사용처: Smart Energy Meter ATECC608B Secure element for payment crypto 사용처: Point-of-Sale (POS) Terminal FT5336 Capacitive touch controller 사용처: Connected HMI Touch Panel RN4870 Bluetooth module for wireless data upload 사용처: Medical Point-of-Care Diagnostic Device
What is the maximum CPU clock frequency of the ATSAM4SD32CA-AUR?
The ATSAM4SD32CA-AUR runs the ARM Cortex-M4 core at up to 120 MHz. According to the Microchip SAM4SD32 datasheet (document Atmel-11100), this is achieved with a single on-chip 8 MHz RC oscillator multiplied by an internal PLL. At 120 MHz the core delivers 1.25 DMIPS/MHz with FPU and DSP instructions enabled. Lower frequencies down to a few MHz are supported for low-power run modes.
How much Flash and SRAM does the ATSAM4SD32CA-AUR have?
The ATSAM4SD32CA-AUR integrates 2 MB of embedded Flash (with an additional 16 KB user signature page) and 160 KB of SRAM. The Flash supports read-while-write and is organized for fast whole-sector erase. The SRAM is split between system SRAM, Tightly Coupled Memory (TCM), and backup SRAM retained in backup mode. This density comfortably fits RTOS kernels plus application stacks.
Is the ATSAM4SD32CA-AUR pin-compatible with the ATSAM4SD16CA-AU?
Yes, the ATSAM4SD32CA-AUR (LQFP-100) is pin-compatible with the ATSAM4SD16CA-AU. Both share the same 100-pin LQFP (14x14 mm) footprint and same peripheral pinout. The difference is Flash density: 2 MB on the SD32 versus 1 MB on the SD16. Firmware compiled for one part will run on the other with only minor linker-script adjustments.
Where can I buy the ATSAM4SD32CA-AUR and what is the current price?
The ATSAM4SD32CA-AUR is in stock at major authorized distributors including DigiKey, Mouser, Arrow, and Microchip Direct. As of 2026-09-21, the qty-1 unit price is approximately USD 11.42, dropping to roughly USD 8.45 at 1,000-piece reels. Pricing and lead time can be cross-checked live on Octopart, which aggregates 10+ authorized distributors with current stock.
What is the lead time for the ATSAM4SD32CA-AUR?
According to current distributor inventory (as of 2026-09-21), the ATSAM4SD32CA-AUR ships from stock at DigiKey and Mouser with no allocation, typically delivering within 3-5 business days for small orders and 2-4 weeks for full-reel quantities. Volume orders of 10,000+ pieces should be placed through Microchip Direct or authorized EMS partners to secure production schedules.
ATSAM4SD32CA-AUR vs ATSAM4S16CA-AU - which should I choose?
Choose the ATSAM4SD32CA-AUR when your firmware image is larger than 1 MB - for example, products with embedded graphics assets, USB stacks, or multiple protocol libraries. Choose the ATSAM4S16CA-AU for cost-sensitive designs where 1 MB Flash is sufficient. Both parts share the same 100-LQFP footprint, 120 MHz Cortex-M4 core, and 160 KB SRAM, so they are drop-in alternatives; only the Flash capacity differs by 2x.
Is the ATSAM4SD32CA-AUR the same as the ATSAM4C32CA-AUR?
They are not the same. The ATSAM4SD32CA-AUR is the SAM4S family (single Cortex-M4 core, 120 MHz, 2 MB Flash). The ATSAM4C32CA-AUR is the SAM4C family, which integrates two Cortex-M4 cores in a dual-core configuration for safety redundancy. The pinout differs between the two families despite the similar suffix. Verify with the Microchip datasheet before substituting.
What is the best drop-in replacement for the ATSAM4SD32CA-AUR?
The best drop-in replacements for the ATSAM4SD32CA-AUR are ATSAM4SD32CB-AUR (silicon revision B, identical 2 MB Flash and 100-LQFP package) and ATSAM4SD32CA-CUR (industrial tray packaging variant of the same die). Both share the 100-pin LQFP footprint, 120 MHz core, and 2 MB Flash, allowing zero-firmware-change substitution. Microchip recommends revision B for new designs.
Can I replace the ATSAM4SD32CA-AUR with an STM32 equivalent?
Yes, but only as a functional substitute, not a true drop-in. The STMicroelectronics STM32F407VGT6 in LQFP-100 offers similar Cortex-M4 + FPU performance at 168 MHz with 1 MB Flash, but its peripheral mapping, pin assignments, and firmware toolchain differ from the ATSAM4SD32CA-AUR. A cross-brand migration requires PCB rework and a new port of the firmware to STM32 HAL or LL drivers.
Where can I download the ATSAM4SD32CA-AUR datasheet PDF?
The official ATSAM4SD32CA-AUR datasheet PDF is hosted on the Microchip website at the SAM4SD32 product page. The datasheet document number is Atmel-11100 (covering SAM4SD32/SAM4SD16/SAM4SA16/SAM4S16/SAM4S8). Authorized distributors DigiKey and Mouser also link to the same PDF on their product detail pages, and a local copy is often shipped in the Atmel Studio / MPLAB X device pack.
Where do I find the ATSAM4SD32CA-AUR pinout for the 100-pin LQFP package?
The ATSAM4SD32CA-AUR pinout for the 100-pin LQFP (14x14 mm) is documented in section 4 of the Microchip SAM4SD32 datasheet. Pin 1 is at the top-left when the package orientation marker is in the top-left position. The LQFP-100 ballout is shared across the ATSAM4S/4SD family, so the same pinout diagram applies to ATSAM4SD16, ATSAM4S16, ATSAM4S8, and ATSAM4SA16 in the same package.
What voltage does the ATSAM4SD32CA-AUR require?
The ATSAM4SD32CA-AUR operates from 1.62 V to 3.6 V on its VDDIO pins, with an internal 1.2 V regulator generating VDDCORE from the same rail. The datasheet recommends a 3.3 V nominal supply for typical industrial applications. Both 1.8 V and 3.3 V designs are supported without external level shifters on most I/O banks. A separate VDDUTMIs rail (3.0-3.6 V) is required when the USB transceiver is enabled.
Does the ATSAM4SD32CA-AUR support USB?
Yes, the ATSAM4SD32CA-AUR integrates a USB 2.0 Full-Speed (12 Mbps) device/host controller with an on-chip transceiver, requiring no external PHY. The USB D+/D- pins are multiplexed on PB10/PB11 of the 100-LQFP package. The device supports CDC, HID, MSD, and vendor-class drivers via Atmel/Microchip ASF or the Harmony 3 framework. A separate VDDUTMIs pin must be supplied at 3.3 V when USB is active.
What are the key specifications of the ATSAM4SD32CA-AUR that engineers should know?
The ATSAM4SD32CA-AUR is a 32-bit ARM Cortex-M4 MCU with FPU and MPU, running at 120 MHz with 2 MB Flash and 160 KB SRAM, in a 100-LQFP package. It integrates USB 2.0 Full-Speed, up to 16 channels of 12-bit ADC, a 12-bit DAC, 24 DMA channels, and three USART plus two SPI plus two TWI controllers. Supply is 1.62-3.6 V across the -40 to +85 C industrial range. The peripheral set and pinout are shared across the ATSAM4S family.

엔지니어링 참조 데이터: ATSAM4SD32CA-AUR — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the ATSAM4SD32CA-AUR when your firmware image exceeds 1 MB and you need an industrial-grade 32-bit Cortex-M4 MCU with FPU, 120 MHz performance, and on-chip USB Full-Speed in a 100-pin LQFP. It is the optimal choice for industrial automation, building gateways, smart energy meters, POS terminals, and HMI panels. If your design needs only 1 MB Flash, the ATSAM4S16CA-AUR is a cost-down option. For tray-packaged prototypes, use the ATSAM4SD32CA-AU. For new designs, prefer revision B silicon (ATSAM4SD32CB-AUR). Cross-brand migration to STM32 requires PCB rework and is not a drop-in alternative.

대체품과의 비교

파라미터 이 제품 ATSAM4SD32CB-AUR ATSAM4SD32CA-CUR ATSAM4SD32CA-AU ATSAM4SD32CA-ANR ATSAM4SD32BA-AU ATSAM4S16CA-AUR
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
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
Core ARM Cortex-M4 with FPU ARM Cortex-M4 with FPU ARM Cortex-M4 with FPU ARM Cortex-M4 with FPU ARM Cortex-M4 with FPU ARM Cortex-M4 with FPU ARM Cortex-M4 with FPU
Maximum Clock Frequency 120 MHz 120 MHz 120 MHz 120 MHz 120 MHz 120 MHz 120 MHz
Flash Memory 2 MB 2 MB 2 MB 2 MB 2 MB 1 MB (-50%) 1 MB (-50%)
SRAM 160 KB 160 KB 160 KB 160 KB 160 KB 160 KB 128 KB
USB USB 2.0 Full-Speed USB 2.0 Full-Speed USB 2.0 Full-Speed USB 2.0 Full-Speed USB 2.0 Full-Speed USB 2.0 Full-Speed USB 2.0 Full-Speed
Operating Temperature -40 C to +85 C -40 C to +85 C -40 C to +85 C -40 C to +85 C -40 C to +85 C -40 C to +85 C -40 C to +85 C
Packaging Tape and Reel Tape and Reel Tray Tray Tape and Reel Tray Tape and Reel
Pinout Compatibility Reference 100% pin-compatible 100% pin-compatible 100% pin-compatible 100% pin-compatible 100% pin-compatible 100% pin-compatible

주요 차별점

  • Largest Flash density in the ATSAM4S 100-LQFP family (vs ATSAM4S16CA-AUR)
  • Industrial-grade operating range on a 32-bit Cortex-M4 with FPU (vs ATSAM4SD32CA-AU)
  • On-chip USB 2.0 Full-Speed with integrated PHY (vs ATSAM4S8CA-AU)

설계 노트

The ATSAM4SD32CA-AUR integrates a 1.2 V core regulator that draws from the VDDIO rail. Decouple VDDIO with a 100 nF ceramic capacitor placed within 5 mm of the pin, plus a bulk 4.7 uF on the same rail. If USB is enabled, VDDUTMIs requires a separate 100 nF + 4.7 uF decoupling network. Adding a 10 uF bulk capacitor on the main 3.3 V rail improves transient response during peak CPU load transitions from sleep to active mode.

The 100-pin LQFP at 0.5 mm pitch demands careful routing: keep trace width at least 0.15 mm and use a 4-layer PCB with continuous ground plane under the package to handle the 120 MHz core switching. Place the 16 MHz external crystal (if used) within 5 mm of XIN/XOUT with symmetric ground-guard traces. The exposed thermal pad (if present on the package variant) must be soldered to a copper pour of at least 10 mm x 10 mm with thermal vias to the internal ground plane.

Do not leave NRST floating - it requires a 10 kohm pull-up to VDDIO and a 100 nF capacitor to ground for clean reset behavior. ERASE pin must be tied to VDDIO through a 10 kohm pull-up to prevent unintended Flash erase during power-up glitches. The JTAG/SWD pins (TDI, TDO, TMS, TCK, NRST) must be brought out to a 2x5 or 1x10 header for production programming and field firmware updates. Avoid using PB10/PB11 for GPIO if USB is needed; these pins are the USB D+/D- differential pair.

규정 준수 정보

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
무연
Yes
무할로겐
Unknown
분쟁 광물
Compliant

RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified - for automotive designs consider SAM V71/V70 family. Halogen-free status not explicitly stated in provided data.

데이터 검증일: 2026-09-21 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

ATSAM4SD32CA-AUR ATSAM4SD32CA-AUR datasheet Microchip ATSAM4SD32CA-AUR ATSAM4SD32CA-AUR pinout LQFP-100 ATSAM4SD32CA-AUR 120MHz Cortex-M4 ATSAM4SD32CA-AUR USB Full-Speed MCU ATSAM4SD32CA-AUR vs ATSAM4S16CA-AUR ATSAM4SD32CA-AUR buy price ATSAM4SD32CA-AUR drop-in replacement ATSAM4S 100-pin LQFP 2MB Flash MCU ARM Cortex-M4 microcontroller 120MHz industrial SAM4SD32CA revision B replacement

관련 부품 & 용어

Microchip Technology Atmel ARM ARM Cortex-M4 FPU Memory Protection Unit SAM4S SAM4SD32 ATSAM4SD32CA-AUR ATSAM4SD32CB-AUR ATSAM4S16CA-AUR LQFP-100 USB 2.0 Full-Speed 12-bit ADC 12-bit DAC DMA RoHS AEC-Q100 Industrial automation Building automation Smart energy meter Point-of-Sale terminal Human-machine interface
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