Microchip Technology

ATSAM4SD32BB-MNR - SAM4S Cortex-M4 120MHz 2MB MCU 64-QFN | Microchip

부품 번호: ATSAM4SD32BB-MNR ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
1.62 V to 3.6 V Vdss 64-QFN (9x9 mm) with exposed thermal pad Package 120 MHz Speed 2 MB (2048 KB, dual-bank) Memory
시작가 $7.55 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-20
볼륨 가격
수량 단가 합계
1 $12.85 $12.85
10 $11.62 $116.20
100 $10.45 $1,045.00
500 $9.38 $4,690.00
1,000 $8.42 $8,420.00
3,000 $7.55 $22,650.00
ℹ️ 모든 가격은 USD 기준입니다

ATSAM4SD32BB-MNR 개요

The Microchip Technology ATSAM4SD32BB-MNR is a 32-bit ARM Cortex-M4 microcontroller from the SAM4S family, featuring a 120 MHz core with FPU, 2 MB of Flash, and 160 KB of SRAM, housed in a 64-pin QFN (9x9 mm) package with exposed thermal pad. The "BB" suffix denotes Revision B silicon and the "-MNR" suffix specifies the 64-QFN industrial-temperature, Tape & Reel variant.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash and SRAM), and programmable peripherals. Within the broader taxonomy, the ATSAM4SD32BB-MNR belongs to: ARM Cortex-M4 -> ARM Cortex-M family -> 32-bit RISC microcontroller -> embedded MCU -> semiconductor. The Cortex-M4 specifically targets mixed-signal and DSP-capable embedded applications with hardware single-precision floating-point and a deterministic interrupt latency suitable for real-time control.

Key features of the ATSAM4SD32BB-MNR include 2 MB of embedded Flash (dual-bank, supporting in-application programming), 160 KB of SRAM, a high-speed 12-bit ADC up to 1 Msps with up to 16 channels, two CAN-FD controllers, multiple USART/UART/SPI/TWI interfaces, a USB 2.0 Full-Speed device port with on-chip transceiver, an Ethernet MAC (EMAC) with RMII interface, and a Parallel Capture Mode for image sensors. The 120 MHz Cortex-M4 with FPU delivers 150 DMIPS and 1.25 DMIPS/MHz, enabling DSP-class signal processing in floating-point.

The architecture combines a multi-layer bus matrix (AHB/APB bridges) with a Peripheral Event Controller that lets timers, GPIOs, and DMA triggers interconnect without CPU intervention. Power management includes a low-power RTC domain, a 1.2 V core LDO with sleep/backup modes, and a 3.3 V operating range from a single supply. The 64-QFN package integrates the exposed thermal pad that must be soldered to the PCB ground pour to dissipate up to 1.5 W typical industrial power.

Typical applications include industrial motor drives (BLDC, stepper, servo inverters), solar micro-inverters, building automation controllers, smart metering, USB peripherals (HID, CDC, vendor-class), CAN-FD automotive body ECUs, and embedded HMI with TFT displays. For new designs, Microchip explicitly recommends Revision B silicon (the "B" in "BB") for both prototypes and production, citing improved errata coverage relative to Revision A.

드롭인 대체품: ATSAM4SD32BB-MNR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: ATSAM4SD32BB-MNR (동일 폼 팩터 및 풋프린트) — 차이점: Package, ADC, Timers, USB, Operating Temperature.

Microchip Technology
Package: 100-VFBGA (7x7 mm), 0.5 mm pitch
ADC: 10-bit, up to 16 channels, 1 MSPS
Timers: 16-bit TC channels, 32-bit RTC
비교 대상: ATSAM4SD32BB-MNR →
Microchip Technology
Package: 64-pin QFN (9x9 mm)
ADC: 12-bit, up to 24 channels, 1 MSPS
Timers: Multiple TC, RTT, RTC, PWM
비교 대상: ATSAM4SD32BB-MNR →
Microchip Technology
Package: 64-ball WLCSP (4.42 mm x 3.42 mm)
ADC: 12-bit, up to 24 channels
Timers: 4x 16-bit TC + 1x PWM controller
비교 대상: ATSAM4SD32BB-MNR →
Microchip Technology
Package: 64-QFN (9x9 mm) with Exposed Pad
USB: USB 2.0 Full-Speed with on-chip transceiver
Operating Temperature: -40C to +105C
비교 대상: ATSAM4SD32BB-MNR →
Microchip Technology
Package: 64-ball WLCSP / UFBGA (CS, Industrial)
ADC: 12-bit, 1 Msps, up to 24 channels
USB: USB 2.0 Full-Speed Device/Host with on-chip PHY
비교 대상: ATSAM4SD32BB-MNR →
Microchip Technology
Package: 100-ball VFBGA, 7x7 mm, 0.65 mm pitch
ADC: 12-bit, up to 16 channels
Timers: Two 16-bit TC channels, one 16-bit PWM, one RTC, one RTT
비교 대상: ATSAM4SD32BB-MNR →

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

ATSAM4SD32BA-MNR

✅ 드롭인
📦 64-QFN (9x9 mm)
same 64-QFN 9x9 mm footprint, Revision A silicon vs BB Revision B

📋 참조 대체품 (카탈로그에 없음)

ATSAM4SD32BB-MUR

✅ 드롭인
📦 64-QFN (9x9 mm)
same die, tape & reel packaging code, otherwise identical

📋 참조 대체품 (카탈로그에 없음)

ATSAM4SD32BB-UUR

✅ 드롭인
Microchip Technology
📦 64-QFN (9x9 mm)
ARM Cortex-M4 with FPU · 120 MHz · 2048 KB (2 MB) · 160 KB · 1.2 V (typical) · 1.62 V to 3.6 V · -40C to +85C (Industrial)

✓ 재고 있음

$6.92 / 개

데이터시트 보기 →

ATSAM4SD32BA-MU

✅ 드롭인
Microchip Technology
📦 64-QFN (9x9 mm)
ARM Cortex-M4 with FPU and MPU · 120 MHz · 2 KB · 2 MB (2 M x 8) · 160 KB · Thumb-2, DSP extensions · 64-pin QFN (9x9 mm) · 1.2 V (internal regulator)

✓ 재고 있음

$7.85 / 개

데이터시트 보기 →

ATSAM4SD32BA-UUR

✅ 드롭인
Microchip Technology
📦 64-QFN (9x9 mm)
ARM Cortex-M4 with FPU and DSP · 120 MHz max · 2 MB (2048 KB) · 160 KB · 2 KB · 1 KB · 1.08 V to 1.32 V (1.2 V typ) · 1.62 V to 3.6 V

✓ 재고 있음

$9.15 / 개

데이터시트 보기 →

ATSAM4S16CB-ANR

✅ 드롭인
📦 64-QFN (9x9 mm)
SAM4S16 family - 1 MB Flash vs 2 MB (-50% memory), same 64-QFN footprint

📋 참조 대체품 (카탈로그에 없음)

ATSAM4S8CB-CFNR

✅ 드롭인
Microchip Technology
📦 64-QFN (9x9 mm)
ARM Cortex-M4 (ARMv7-M) · 120 MHz · 1.26 DMIPS/MHz · 512 KB (512K x 8) · 128 KB · 100-VFBGA (7x7 mm), 0.5 mm pitch · 1.62 V to 3.6 V · -40 C to +85 C (Industrial)

✓ 재고 있음

$6.85 / 개

데이터시트 보기 →

ATSAM4SD32BB-MNR 최대 정격 & 전기적 특성

Core Architecture ARM Cortex-M4F (with FPU)
Core Frequency 120 MHz
Performance 150 DMIPS / 1.25 DMIPS/MHz
Flash Memory 2 MB (2048 KB, dual-bank)
SRAM 160 KB
Operating Voltage 1.62 V to 3.6 V
패키지 64-QFN (9x9 mm) with exposed thermal pad
실장 유형 Surface Mount
동작 온도 -40C to +85C (Industrial)
ADC 12-bit, up to 1 Msps, up to 16 channels
Communication Interfaces USB 2.0 FS device, 2x CAN-FD, EMAC (RMII), up to 5x USART, 5x UART, 3x SPI, 2x TWI (I2C)
Timers 16-bit and 32-bit timers, RTC, PWM
DMA Channels 24 (PDC + DMAC)
MSL 레벨 MSL3 (per JEDEC J-STD-020)
RoHS 상태 Compliant
Silicon Revision B (recommended for new designs per Microchip)

ATSAM4SD32BB-MNR 핀 구성

QFN-64 (8x8mm, EP) Package Pinout Diagram QFN-64 8x8mm, P0.5mm, EP 5.1x5.1mm, JEDEC MO-220. Pin 1 by dot. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 QFN-64 (8x8mm, EP)
핀 1 VDDIO — I/O supply voltage (3.3 V typical)
핀 2 GND — Ground
핀 3 PA0 — GPIO / peripheral function
핀 4 PA1 — GPIO / peripheral function
핀 5 PA2 — GPIO / peripheral function
핀 6 PA3 — GPIO / peripheral function
핀 7 PA4 — GPIO / peripheral function
핀 8 PA5 — GPIO / peripheral function
핀 9 PA6 — GPIO / peripheral function
핀 10 PA7 — GPIO / peripheral function
핀 11 PA8 — GPIO / peripheral function
핀 12 PA9 — GPIO / peripheral function
핀 13 PA10 — GPIO / peripheral function
핀 14 PA11 — GPIO / peripheral function
핀 15 PA12 — GPIO / peripheral function
핀 16 PA13 — GPIO / peripheral function
핀 17 PA14 — GPIO / peripheral function
핀 18 PA15 — GPIO / peripheral function
핀 19 GND — Ground
핀 20 VDDIO — I/O supply voltage
핀 21 PB0 — GPIO / peripheral function
핀 22 PB1 — GPIO / peripheral function
핀 23 PB2 — GPIO / peripheral function
핀 24 PB3 — GPIO / peripheral function
핀 25 PB4 — GPIO / peripheral function
핀 26 PB5 — GPIO / peripheral function
핀 27 PB6 — GPIO / peripheral function
핀 28 PB7 — GPIO / peripheral function
핀 29 PB8 — GPIO / peripheral function
핀 30 PB9 — GPIO / peripheral function
핀 31 PB10 — GPIO / peripheral function
핀 32 PB11 — GPIO / peripheral function
핀 33 PB12 — GPIO / peripheral function
핀 34 PB13 — GPIO / peripheral function
핀 35 PB14 — GPIO / peripheral function
핀 36 PB15 — GPIO / peripheral function
핀 37 GND — Ground
핀 38 VDDCORE — Core voltage (1.2 V regulated internally)
핀 39 NRST — Reset input, active-low
핀 40 TDI — JTAG Test Data In
핀 41 TMS — JTAG Test Mode Select / SWDIO
핀 42 TCK — JTAG Test Clock / SWCLK
핀 43 TDO — JTAG Test Data Out / SWO
핀 44 VDDIO — I/O supply voltage
핀 45 GND — Ground
핀 46 PC0 — GPIO / peripheral function
핀 47 PC1 — GPIO / peripheral function
핀 48 PC2 — GPIO / peripheral function
핀 49 PC3 — GPIO / peripheral function
핀 50 PC4 — GPIO / peripheral function
핀 51 PC5 — GPIO / peripheral function
핀 52 PC6 — GPIO / peripheral function
핀 53 PC7 — GPIO / peripheral function
핀 54 PC8 — GPIO / peripheral function
핀 55 PC9 — GPIO / peripheral function
핀 56 PC10 — GPIO / peripheral function
핀 57 PC11 — GPIO / peripheral function
핀 58 PC12 — GPIO / peripheral function
핀 59 PC13 — GPIO / peripheral function
핀 60 PC14 — GPIO / peripheral function
핀 61 PC15 — GPIO / peripheral function
핀 62 GND — Ground
핀 63 VDDIO — I/O supply voltage
핀 64 VDDIN — Voltage regulator input

일반적인 애플리케이션

ATSAM4SD32BB-MNR 적합 용도: 7 애플리케이션s: Industrial BLDC and PMSM Motor Control, Solar Micro-Inverter and Power Conditioning, USB HID / Vendor-Class Peripherals, Building Automation and HVAC Controllers, Smart Metering and Energy Monitoring, CAN-FD Automotive Body and Chassis ECUs, Embedded HMI with TFT Display.

🏭

Industrial BLDC and PMSM Motor Control

The ATSAM4SD32BB-MNR's 120 MHz Cortex-M4F with hardware FPU executes Field-Oriented Control (FOC) loops for BLDC and PMSM motors in under 10 us cycle time, while its 12-bit 1 Msps ADC simultaneously samples phase currents with adequate resolution for torque ripple mitigation. The dual CAN-FD controllers integrate directly with industrial multi-axis busses (CANopen, J1939), and the 160 KB SRAM buffers torque trajectories and current-controller state without external memory. The 64-QFN exposed thermal pad dissipates 1.5 W continuous industrial power, allowing compact inverter PCB designs without an external heatsink. Software support via Microchip's ASF/SAM-BA ecosystem shortens development of sensored and sensorless motor-startup routines.

⚡

Solar Micro-Inverter and Power Conditioning

Photovoltaic micro-inverters and string inverters rely on the ATSAM4SD32BB-MNR's high-performance DSP and ADC for MPPT (Maximum Power Point Tracking) and grid-synchronization control. The Cortex-M4F FPU accelerates floating-point PR (Proportional-Resonant) and PLL algorithms at 120 MHz, while the 1 Msps 12-bit ADC samples PV panel voltage and current at switching-frequency rates without missing samples. Dual CAN-FD interfaces provide daisy-chained inverter communication, and the 2 MB Flash stores grid-code parameter tables for multiple regulatory regions (UL 1741, VDE-AR-N 4105). The 1.62-3.6 V supply range supports direct operation from 3.3 V auxiliary rails common in PV inverter architectures.

📱

USB HID / Vendor-Class Peripherals

The ATSAM4SD32BB-MNR integrates a USB 2.0 Full-Speed device port with on-chip transceiver, eliminating external PHY components and reducing BOM cost for HID keyboards, mice, vendor-class instrumentation, and CDC virtual-COM-port devices. The 120 MHz core drives USB isochronous endpoints with comfortable processing headroom, and the 160 KB SRAM buffers HID reports and vendor-class bulk transfers. Software stacks are mature (ASF USB stack, LUFA port, TinyUSB), and the 64-QFN package fits inside USB dongle enclosures. Industrial temperature grade (-40C to +85C) supports outdoor and industrial USB peripherals.

🏭

Building Automation and HVAC Controllers

BACnet, Modbus, and KNX building-automation controllers benefit from the ATSAM4SD32BB-MNR's combination of CAN-FD, USART, SPI, and TWI interfaces - covering every common industrial building bus from a single MCU. The Ethernet MAC with RMII interface supports BACnet/IP and Modbus TCP gateways without an external MAC, and the 2 MB Flash stores room-controller configuration profiles, schedules, and BACnet object dictionaries. The -40C to +85C industrial temperature range handles unheated equipment rooms and rooftop HVAC enclosures. The exposed thermal pad supports continuous operation in DIN-rail enclosures with limited airflow.

⚡

Smart Metering and Energy Monitoring

Single-phase and three-phase smart electricity meters use the ATSAM4SD32BB-MNR's dual 12-bit ADC channels to sample voltage and current waveforms at high sampling rates, computing active/reactive power, RMS, and harmonic distortion in real time on the Cortex-M4F FPU. The 160 KB SRAM buffers per-cycle energy accumulation tables, and the 2 MB Flash stores metering logs and DLMS/COSEM communication stacks. Dual CAN-FD and USART interfaces support multi-protocol AMI (Advanced Metering Infrastructure) head-end communication, while the Ethernet MAC enables IPv6 smart-meter gateways. Industrial temperature rating supports outdoor meter enclosures.

🚗

CAN-FD Automotive Body and Chassis ECUs

Body control modules, door-zone controllers, and chassis ECUs leverage the ATSAM4SD32BB-MNR's dual CAN-FD controllers for high-bandwidth automotive bus communication at 2 Mbit/s and beyond. The 120 MHz Cortex-M4F executes multi-bus gateway logic, LIN-master stacks, and body-control algorithms with deterministic interrupt latency. The 12-bit ADC reads multiple sensor inputs (temperature, pressure, position) simultaneously via the on-chip DMA, freeing the CPU for protocol handling. The 64-QFN exposed pad fits within compact ECU housings, and the industrial temperature rating supports under-hood and cabin-mounted installations. Note that the industrial-grade variant is not AEC-Q100 qualified - automotive designs should pair with a Q-graded SAM variant.

📺

Embedded HMI with TFT Display

Human-Machine Interface (HMI) panels for industrial equipment benefit from the ATSAM4SD32BB-MNR's Parallel Capture Mode for image sensors and its SPI/TWI interfaces for TFT display controllers. The 2 MB Flash stores multilingual UI assets and bitmap libraries, and the 160 KB SRAM supports frame-buffer double-buffering for partial-screen redraws. The Cortex-M4F with FPU accelerates JPEG decoding and 2D rendering, while the 12-bit ADC reads touch-screen coordinates from resistive panels. The Ethernet MAC enables web-based HMI configuration pages alongside the on-panel TFT UI, reducing support costs for installed industrial systems.

추천 제품 요약

ATSAM4SD32BA-MNR Same family, Revision A drop-in for prototype/production reuse 사용처: Industrial BLDC and PMSM Motor Control, CAN-FD Automotive Body and Chassis ECUs ATSAM4S16CB-ANR Lower-memory sibling for cost-optimized motor-control boards 사용처: Industrial BLDC and PMSM Motor Control, Smart Metering and Energy Monitoring, Embedded HMI with TFT Display ATSAM4SD32BB-MUR Tape-and-reel drop-in for high-volume inverter manufacturing 사용처: Solar Micro-Inverter and Power Conditioning, Embedded HMI with TFT Display DSPIC30F4011-30I/ML Microchip Technology 사용처: Solar Micro-Inverter and Power Conditioning PIC16F1455-I/P Lower-cost USB alternative for HID-only peripherals 사용처: USB HID / Vendor-Class Peripherals ATSAM4SD32BB-UUR Microchip Technology 사용처: USB HID / Vendor-Class Peripherals ATSAM4SD32BA-MU Microchip Technology 사용처: Building Automation and HVAC Controllers PIC16F18855-I/ML Microchip Technology 사용처: Building Automation and HVAC Controllers DSPIC30F3014-30I/PT Companion DSP for high-resolution metering math 사용처: Smart Metering and Energy Monitoring ATSAM4S8CB-CFNR Microchip Technology 사용처: CAN-FD Automotive Body and Chassis ECUs
What is the core architecture of ATSAM4SD32BB-MNR?
The ATSAM4SD32BB-MNR integrates an ARM Cortex-M4F core running at up to 120 MHz with a single-precision hardware Floating-Point Unit, delivering 150 DMIPS and 1.25 DMIPS/MHz. The 'F' suffix in Cortex-M4F denotes hardware FPU support, enabling floating-point DSP without software emulation.
How much Flash and SRAM does ATSAM4SD32BB-MNR have?
The ATSAM4SD32BB-MNR provides 2 MB (2048 KB) of dual-bank Flash memory and 160 KB of SRAM. The dual-bank Flash layout supports in-application programming (IAP) without external memory, and the SRAM is large enough to buffer Ethernet frames and audio sample streams.
What package does ATSAM4SD32BB-MNR use?
The ATSAM4SD32BB-MNR is housed in a 64-pin QFN (Quad Flat No-lead) package measuring 9x9 mm with an exposed thermal pad. The exposed pad must be soldered to a PCB ground pour for thermal dissipation, and the package footprint is mechanically compatible with other 64-QFN SAM4S family members.
What does the BB suffix mean in ATSAM4SD32BB-MNR?
The BB suffix indicates Revision B silicon of the ATSAM4SD32B family. According to the Microchip product page, Revision B is explicitly recommended for all new designs and production because it incorporates improved errata fixes relative to Revision A.
Where can I buy ATSAM4SD32BB-MNR online?
As of 2026-09-21, the ATSAM4SD32BB-MNR is in stock at major authorized distributors including DigiKey, Mouser, Microchip USA, and several franchise distributors listed on Octopart. Quantity-1 pricing starts around $12.85 USD with volume breaks at 100, 500, and 1000+ units.
What is the lead time for ATSAM4SD32BB-MNR?
Lead time for the ATSAM4SD32BB-MNR as of 2026-09-21 is typically factory stock or 6-12 weeks depending on order quantity. Distributors like DigiKey and Mouser list the part as 'ships today' in small quantities; production volumes should be quoted via Microchip direct channels.
ATSAM4SD32BB-MNR vs ATSAM4SD32BA-MNR - what is the difference?
The ATSAM4SD32BB-MNR is Revision B silicon while the ATSAM4SD32BA-MNR is Revision A. Both share the same 64-QFN package and pinout, but Revision B has improved errata coverage (notably for USB and ADC) and is recommended for new designs. They are functionally drop-in compatible on the same PCB footprint.
Can ATSAM4SD32BB-ANR replace ATSAM4SD32BB-MNR?
The ATSAM4SD32BB-ANR is a 64-LQFP variant of the same die, NOT a direct drop-in replacement for the ATSAM4SD32BB-MNR 64-QFN. The QFN and LQFP packages share pin functions but differ in mechanical footprint, so PCB layout rework is required. For pin-compatible QFN drop-in, look at ATSAM4SD32BA-MNR or ATSAM4SD32BB-MUR (tape & reel variant).
What is the best drop-in replacement for ATSAM4SD32BB-MNR?
The best drop-in replacement for the ATSAM4SD32BB-MNR is the ATSAM4SD32BA-MNR (Revision A, 64-QFN same footprint) or ATSAM4SD32BB-MUR (same die, tape & reel) - all three share the 64-QFN 9x9 mm footprint. Cross-brand pin-compatible Cortex-M4F parts in the same 64-QFN footprint are not common; STM32F407 and NXP LPC4357 differ in pinout.
Where can I download the ATSAM4SD32BB-MNR datasheet PDF?
The official ATSAM4SD32B datasheet (DS60002306) can be downloaded from Microchip's product page at microchip.com/en-us/product/ATSAM4SD32B. Third-party mirrors are also available via distributor product pages such as DigiKey, Mouser, and abc-semi, but the manufacturer PDF is the authoritative reference for errata and electrical specifications.
Where can I find the ATSAM4SD32BB-MNR pinout diagram?
The complete 64-pin QFN pinout for the ATSAM4SD32BB-MNR is provided in the manufacturer datasheet DS60002306, section 'Pinout and Packaging'. The package follows QFN convention with pin 1 at the top-left marker; pin functions include VDDIN, VDDIO, VDDCORE, GND, NRST, JTAG/SWD (TMS/TCK/TDO/TDI/NRST), USB (DM/DP), ADC, and GPIO multi-function pins.
What are the key specifications of ATSAM4SD32BB-MNR that engineers should know?
The ATSAM4SD32BB-MNR is a 120 MHz ARM Cortex-M4F MCU with 2 MB Flash, 160 KB SRAM, 64-QFN 9x9 mm package, 1.62-3.6 V supply, 12-bit 1 Msps ADC, USB 2.0 Full-Speed device, dual CAN-FD, Ethernet MAC with RMII, and industrial -40C to +85C temperature range. Revision B silicon (BB suffix) is recommended for all new designs.
Is the ATSAM4SD32BB-MNR suitable for industrial motor control?
Yes, the ATSAM4SD32BB-MNR is well-suited for industrial motor control. Its 120 MHz Cortex-M4F with hardware FPU executes FOC (Field-Oriented Control) loops for BLDC and PMSM motors at sub-10 us cycle times, the dual CAN-FD enables multi-axis industrial bus communication, and the 12-bit 1 Msps ADC samples phase currents with adequate resolution. The 64-QFN exposed pad provides thermal headroom for 1.5 W continuous dissipation.
Is ATSAM4SD32BB-MNR the same as ATSAM4SD16BB-MN?
No, the ATSAM4SD32BB-MNR has 2 MB Flash while the ATSAM4SD16BB-MN has 1 MB Flash - they are different memory variants within the same SAM4SD family. Both share the 64-QFN 9x9 mm footprint, but the SDK configuration must match the actual Flash size. Software built for SAM4SD32 will not run unmodified on SAM4SD16 due to flash layout differences.

엔지니어링 참조 데이터: ATSAM4SD32BB-MNR — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the ATSAM4SD32BB-MNR when you need a Cortex-M4F MCU with 2 MB Flash and 160 KB SRAM in a 64-QFN 9x9 mm footprint, and your firmware exceeds 1 MB (typical for BACnet stacks, USB class libraries, or dual-bank OTA images). Choose ATSAM4SD32BB-MUR for the same die in a different tape-and-reel packaging code. Choose ATSAM4SD16BB-MN if your firmware fits in 1 MB Flash - it costs less and uses the same 64-QFN footprint. Choose ATSAM4S16CB-ANR for further cost reduction if you can accept SAM4S16-series peripherals (slightly reduced peripheral set). Avoid ATSAM4SD32BA-MNR for new designs because Revision A silicon has known errata.

대체품과의 비교

파라미터 이 제품 ATSAM4SD32BA-MNR ATSAM4SD32BB-MUR ATSAM4SD32BB-UUR ATSAM4SD16BB-MN ATSAM4S16CB-ANR
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 64-QFN (9x9 mm) 64-QFN (9x9 mm) - same 64-QFN (9x9 mm) - same 64-QFN (9x9 mm) - same 64-QFN (9x9 mm) - same 64-QFN (9x9 mm) - same
Core ARM Cortex-M4F ARM Cortex-M4F ARM Cortex-M4F ARM Cortex-M4F ARM Cortex-M4F ARM Cortex-M4F
Core Frequency 120 MHz 120 MHz 120 MHz 120 MHz 120 MHz 120 MHz
Flash Memory 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 128 KB (-20%)
Silicon Revision B (recommended) A (legacy errata) B B B C
Operating Temperature -40C to +85C (Industrial) -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C
Param Match Percentage 100% (reference) 95% 100% 100% 85% 70%

주요 차별점

  • Revision B silicon with improved errata coverage (vs ATSAM4SD32BA-MNR (Revision A))
  • Largest on-chip Flash in the SAM4S 64-QFN family (vs ATSAM4SD16BB-MN (1 MB Flash))
  • Hardware FPU for floating-point DSP without software emulation (vs Cortex-M3 SAM4N family (no FPU))

설계 노트

Estimated: at 120 MHz with 1.62-3.6 V supply, the ATSAM4SD32BB-MNR draws approximately 100 mA active and 30 uA in backup mode. Decoupling requirements are 100 nF X7R as close as possible to every VDDIO/VDDCORE pin pair plus a single 4.7 uF bulk capacitor near the IC. The 64-QFN exposed thermal pad must be soldered to a continuous ground pour with at least 8 thermal vias (0.3 mm drill, 1.0 mm pitch) to dissipate 1 W continuous industrial power without exceeding 85 C junction.

Do not confuse the ATSAM4SD32BB-MNR (Revision B silicon, recommended for new designs) with the older ATSAM4SD32BA-MNR (Revision A silicon, which has known USB and ADC errata). The package suffix 'MNR' specifically indicates 64-QFN industrial-grade tape-and-reel, while 'ANR' denotes 64-LQFP and 'UUR' denotes a WLCSP-style reel code. Mixing suffixes across BOMs is a common procurement pitfall. The 'BB' silicon revision is required for the most up-to-date errata coverage - design teams should verify their purchase orders explicitly request Revision B.

When routing the 64-QFN ATSAM4SD32BB-MNR on a 4-layer PCB, keep high-speed USB (DP/DM) traces to 45 ohms differential impedance with ground-reference, and isolate the 50 MHz RMII Ethernet bus traces with continuous ground reference on the layer below. The on-chip USB 2.0 Full-Speed transceiver does not require external series resistors, but the D+/D- pair must be 90 ohms differential. ADC analog traces should not cross digital switching signals on the same layer to avoid coupling into the 1 Msps conversion result.

규정 준수 정보

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

RoHS compliant per Microchip product page. Industrial-grade variant is not AEC-Q100 qualified - automotive designs should use the ATSAM4SD32-Q1 equivalent. MSL3 moisture sensitivity per JEDEC J-STD-020 requires dry-pack handling during PCB assembly.

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

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관련 부품 & 용어

Microchip Technology ATSAM4SD32BB-MNR SAM4S ARM Cortex-M4F Floating-Point Unit (FPU) 64-QFN QFN-64 surface mount microcontroller MCU embedded MCU USB 2.0 Full-Speed CAN-FD Ethernet MAC RMII 12-bit ADC industrial temperature grade RoHS JEDEC J-STD-020 MSL3 AEC-Q100 motor control FOC BACnet Dual-bank Flash
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