ATSAM4SD16BB-MNR - 120MHz Cortex-M4 MCU 1MB Flash 64-QFN | Microchip
MPN： ATSAM4SD16BB-MNR ✓ 啟用中ATSAM4SD16BB-MNR 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and programmable peripherals. The Cortex-M4 is a 32-bit RISC core designed by ARM that adds DSP extensions and an optional single-precision floating-point unit (FPU); it belongs to the Cortex-M microcontroller family within ARM's broader processor IP portfolio. SAM4S microcontrollers sit in the 32-bit performance MCU segment between low-power Cortex-M0+ devices and high-end Cortex-M7 parts, and they are widely used where deterministic real-time control and rich connectivity are required.
Key features of the ATSAM4SD16BB-MNR include 1 MB of dual-bank Flash with cache for zero-wait-state execution at 120 MHz, 160 KB SRAM, a full-speed USB 2.0 Device port, an external bus interface (EBI) supporting SRAM, NOR Flash, and NAND Flash, and an operating voltage range of 1.62 V to 3.6 V. The device supports industrial-grade temperatures (-40C to +105C for the -MNR extended-temp suffix) and integrates a real-time clock, RTC backup domain, and a 12-channel 1 Msps 12-bit ADC suitable for mixed-signal acquisition.
The architecture combines a Harvard bus with a multi-layer AHB/APB matrix, dedicated DMA controllers (12 peripheral-DMA channels plus two high-speed channels), and a 16-bit external bus interface, enabling deterministic I/O and high-throughput data movement. Hardware AES (128-bit) is available in select variants, and the SAM4S supports Atmel/Microchip SAM-BA boot, ISP via UART, and JTAG/SWD debug. Revision B silicon (the -BB suffix) is the recommended silicon revision for new designs per Microchip guidance.
Typical applications include industrial control and HMI panels, USB peripherals and HID devices, smart energy meters, building automation gateways, motor control (BLDC/PMSM sensorless drives), and consumer audio products. The 1 MB Flash allows on-board firmware plus a USB bootloader and configuration tables without external memory.
When designing with this part, choose LQFP or QFN land patterns according to thermal and rework needs; the QFN-64 (9x9 mm) provides an exposed thermal pad that must be soldered to a continuous ground copper pour to meet thermal and electrical performance. Decouple VDDIO and VDDCORE with 100 nF X7R ceramic caps placed within 2 mm of each pin pair, and reserve the NRST line with the standard 10 kohm pull-up and 1 nF cap reset network.
This page synthesizes the ATSAM4SD16BB-MNR datasheet, distributor pricing as of 2026-09-21, and pin-compatible drop-in alternatives that enable a faster design-in cycle than reading the manufacturer datasheet alone.
直接替換替代品，適用於 ATSAM4SD16BB-MNR — 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： ATSAM4SD16BB-MNR （相同外形與佔位） — 差異在於 Package, ADC, SRAM, DAC, Operating Temperature.
ATSAM4SD16BB-MN
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ATSAM4SD16BB-UUR
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ATSAM4SD16BA-MUR
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4SD16BA-MU
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4SA16CB-ANR
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM32F405RGT6
✅ 直接替換✓ 有庫存
$6.75 / 單位
查看資料表 →ATSAM4SD16BB-MNR 最大額定值與電氣特性
| Core Architecture | ARM Cortex-M4 with FPU |
| Core Width | 32-bit |
| 最大時脈頻率 | 120 MHz |
| Program Memory (Flash) | 1 MB (1M x 8) |
| SRAM | 160 KB |
| 封裝 | 64-QFN (9x9 mm) with exposed thermal pad |
| Operating Voltage | 1.62 V to 3.6 V |
| 工作溫度 | -40C to +105C (extended temp, -MN suffix) |
| USB | USB 2.0 Full-Speed Device with embedded transceiver |
| ADC | 12-bit, up to 16 channels, 1 Msps |
| DAC | 12-bit, 2 channels |
| UART/USART | 3 UART + up to 6 USART |
| SPI | 3 controllers |
| TWI (I2C) | 2 controllers |
| External Bus Interface (EBI) | Yes, supports SRAM/NOR/NAND |
| DMA | 12 peripheral channels + 2 high-speed channels |
| 安裝類型 | Surface Mount |
| Lead-Free / RoHS | Compliant (per Microchip product page) |
ATSAM4SD16BB-MNR 64-qfn (9x9 mm) with exposed thermal pad 腳位配置指南
ATSAM4SD16BB-MNR（64-qfn (9x9 mm) with exposed thermal pad 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： ATSAM4SD16BB-MNR.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATSAM4SD16BB-MNR 適用於 6 應用s: Industrial Control and HMI Panels, USB Peripherals and HID Devices, Smart Energy Meters and Building Automation, Sensorless BLDC/PMSM Motor Control, Consumer Audio Products, Medical Point-of-Care Devices.
Industrial Control and HMI Panels
The ATSAM4SD16BB-MNR fits industrial control and HMI panels because its 120 MHz Cortex-M4 core with FPU executes control loops and graphical UI rendering in real time. The 1 MB dual-bank Flash holds the application plus a USB bootloader and asset data, while the 160 KB SRAM supports double-buffered display framebuffers. The exposed thermal pad on the 64-QFN package dissipates heat reliably inside sealed IP65 enclosures, and the -40C to +105C extended temperature rating supports unheated cabinets. Recommended companions: KSZ8081 (Ethernet PHY) and STMPE811 (touchscreen controller).
推薦
USB Peripherals and HID Devices
The ATSAM4SD16BB-MNR is ideal for USB peripherals such as HID devices, custom vendor-class interfaces, and CDC virtual COM ports because of its integrated full-speed USB 2.0 Device port with on-chip transceiver. The 1.5 kB of dedicated endpoint RAM removes the need for external USB SRAM and keeps firmware buffers in main SRAM. The Cortex-M4 with FPU accelerates protocol overhead such as audio streaming or composite USB classes. The 64-QFN 9x9 mm footprint suits compact dongles and embedded peripherals where PCB area is at a premium. Recommended companions: USBLC6-2SC6 (ESD protection) and 24LC256 (EEPROM for descriptors).
推薦
Smart Energy Meters and Building Automation
Smart energy meters and building automation gateways benefit from the ATSAM4SD16BB-MNR's combination of a 12-bit 1 Msps ADC for multi-channel metering, 160 KB SRAM for waveform buffers, and EBI expansion to NOR Flash or LCD panels. The low 1.62 V to 3.6 V operating range simplifies direct connection to battery-backed metering rails, while the 1 MB Flash stores metering firmware, calibration constants, and OpenADR or Modbus stacks. Per the manufacturer datasheet, the part supports the SAM4S RTC backup domain with separate VBAT pin for tamper detection. Recommended companions: ATM90E36A (energy metering AFE) and AT24CM02 (serial EEPROM).
推薦
Sensorless BLDC/PMSM Motor Control
The ATSAM4SD16BB-MNR drives sensorless BLDC and PMSM motors efficiently because its Cortex-M4 with FPU executes FOC (field-oriented control) algorithms at 120 MHz, leaving headroom for current loops, communication stacks, and safety checks. The 16-bit PWM timer array provides complementary outputs with programmable dead-time for three-phase inverters up to a few kW. The 12-bit 1 Msps ADC samples phase currents synchronously to the PWM, while the QFP/QFN 64-pin package exposes enough GPIO for encoder, Hall, or back-EMF feedback paths. Recommended companions: DRV8301 (three-phase gate driver) and CSD17573Q5B (40V N-FET).
推薦
Consumer Audio Products
Consumer audio products including portable speakers, headphones with USB-C, and soundbars benefit from the ATSAM4SD16BB-MNR's I2S interface, dual 12-bit DACs, and Cortex-M4 DSP capability for audio processing. The 1 MB Flash stores audio firmware plus DSP effects (EQ, virtual surround, ANC), and the 160 KB SRAM is sufficient for I2S double-buffering. The integrated full-speed USB Device port accepts firmware updates via USB and digital audio streaming, while the 64-QFN package supports compact consumer form factors. Recommended companions: SGTL5000 (audio codec) and AT25SF081B (Flash for audio assets).
推薦
Medical Point-of-Care Devices
Medical point-of-care and diagnostic devices benefit from the ATSAM4SD16BB-MNR's Cortex-M4 DSP extensions for signal processing (e.g., biosensor filter chains), 12-bit ADC for analog sensor readout, and full-speed USB for data upload to host instruments. The 1 MB Flash supports IEC 62304-compliant firmware with bootloader and application partitions, while the 160 KB SRAM holds sample buffers. The extended -40C to +105C temperature range covers most clinical and ambulatory environments, and the 64-QFN package allows miniaturized handheld designs. Recommended companions: AD8232 (ECG AFE) and LIS2DH (3-axis accelerometer).
推薦
推薦產品摘要
工程參考資料，適用於 ATSAM4SD16BB-MNR — 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 | ATSAM4SD16BB-MN | ATSAM4SD16BA-MUR | ATSAM4SA16CB-ANR | STM32F405RGT6 |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | STMicroelectronics |
| 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 |
| Core Architecture | ARM Cortex-M4 with FPU at 120 MHz | ARM Cortex-M4 with FPU at 120 MHz | ARM Cortex-M4 with FPU at 120 MHz (rev A) | ARM Cortex-M4 with FPU at 120 MHz | ARM Cortex-M4 with FPU at 168 MHz |
| Flash Memory | 1 MB | 1 MB | 1 MB | 1 MB | 1 MB |
| SRAM | 160 KB | 160 KB | 160 KB | 160 KB | 192 KB |
| USB | Full-Speed USB 2.0 Device | Full-Speed USB 2.0 Device | Full-Speed USB 2.0 Device | Full-Speed USB 2.0 Device | USB 2.0 OTG Full-/High-Speed |
| ADC | 12-bit, 16 channels, 1 Msps | 12-bit, 16 channels, 1 Msps | 12-bit, 16 channels, 1 Msps | 12-bit, 16 channels, 1 Msps | 12-bit, 16 channels, 2.4 Msps |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +85C |
| Approximate Unit Price (1 pc) | USD 10.06 | USD 9.50 (estimated, tray) | USD 9.40 (estimated) | USD 9.80 (estimated) | USD 12.00 (estimated) |
主要差異化特點
- Silicon revision B with manufacturer-recommended new-design status (對比ATSAM4SD16BA-MUR (revision A))
- 1 MB dual-bank Flash with cache for zero-wait-state execution at 120 MHz (對比ATSAM4S16CB-CFN (BGA package, same family))
- Extended industrial temperature -40C to +105C vs +85C typical STM32 parts (對比STM32F405RGT6 (STMicroelectronics))
- Integrated full-speed USB with on-chip transceiver (對比STM32F405RGT6)
設計說明
Decouple the ATSAM4SD16BB-MNR with one 100 nF X7R ceramic capacitor within 2 mm of each VDDIO/VDDANA pair, plus one bulk 4.7 uF per major rail; the SAM4S datasheet specifies that VDDCORE is internally regulated from VDDOUT at 1.2 V, so the VDDOUT pin requires a 1 uF + 100 nF local filter. Add a ferrite bead on VBUS when powering USB from the bus to limit inrush.
The 64-QFN 9x9 mm exposed thermal pad must be soldered to a continuous ground copper pour that is stitched with thermal vias to the inner ground plane. Per the SAM4S datasheet, this pad serves as the primary heat path and is required for the device to meet its 120 MHz full-performance operating range at +105C ambient; never leave the pad floating.
Route the USB DP/DM differential pair with 90 ohm differential impedance, length matching within 150 mil, and a clean ground reference on layer 2; place the ATSAM4SD16BB-MNR's USB DP/DM pins close to the connector and add ESD protection (USBLC6-2SC6 or equivalent) within 3 mm of the connector. The 24 MHz external crystal traces should be short and surrounded by a ground guard ring to avoid coupling into ADC channels.
Estimated: this device is silicon revision B (suffix -BB); Microchip strongly recommends revision B for all new designs and many errata are corrected only in revision B. Do not confuse with the older ATSAM4SD16BA variants (revision A) for new designs. Boot from Flash by default; ensure the NRST line has the recommended 10 kohm pull-up + 1 nF cap network and the BMS (Boot Mode Select) pins reflect the intended boot source on every reset.
The JTAG/SWD pins (TCK, TMS, TDI, TDO, NRST) must be brought out to a 0.05 inch-pitch debug header or a 10-pin Cortex-M Debug connector for production programming; adding test points is recommended. Keep the EBI address/data bus traces short and length-matched if SDRAM is used; for NAND Flash, place the device within 1 inch of the SAM4S and route the busy/ready signal away from switching nodes to avoid signal-integrity errors during block erase.
合規資訊
RoHS and lead-free confirmed via Microchip product page; AEC-Q100 not qualified - this is a general industrial MCU. REACH compliance is per Microchip's product declaration; halogen-free status is not explicitly stated in the provided data.
