ATSAM4SD32BA-ANR - 2MB Flash 120MHz Cortex-M4 MCU | Microchip
料号： ATSAM4SD32BA-ANR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $12.85 | $12.85 |
| 10 | $11.42 | $114.20 |
| 100 | $9.18 | $918.00 |
| 500 | $7.95 | $3,975.00 |
| 1,000 | $6.72 | $6,720.00 |
ATSAM4SD32BA-ANR 概述
The SAM4S family is part of the Atmel/Microchip ARM Cortex-M4 microcontroller lineup. A Cortex-M4 MCU is a 32-bit processor core featuring DSP extensions, single-cycle MAC, hardware single-precision FPU, and a tightly-coupled NVIC for deterministic interrupt response. Within Microchip's portfolio it sits above Cortex-M0+ SAM D parts and below Cortex-M7 SAME70/SAMS70 parts, balancing high computational throughput (1.25 DMIPS/MHz, hardware FPU) with the peripheral richness needed for human-machine interface (HMI), connectivity bridges, and motor control front-ends.
Key features of the ATSAM4SD32BA-ANR include up to 120 MHz CPU clock, 2 MB embedded Flash, 160 KB SRAM, a 12-bit ADC, two 12-bit DACs, USB 2.0 Full-Speed Device/Host, CAN 2.0A/B, 10/100 Ethernet MAC (EMAC), HSMCI for SD cards, and 8/16-bit external bus interface (EBI) for SRAM/NOR/NAND. The Cortex-M4 core's single-precision FPU accelerates floating-point DSP code, while the integrated sleep modes (Wait, Sleep, Backup with RTC) reduce active power for battery-friendly designs. The 64-LQFP package exposes most peripheral I/Os while remaining hand-solderable for prototypes.
Typical applications include industrial HMI panels, HVAC controllers, USB peripherals and barcode scanners, point-of-sale terminals, smart metering, motor-control signal processors, building automation gateways, and connectivity bridges (USB-to-Ethernet, USB-to-CAN). The combination of 2 MB Flash and 160 KB SRAM supports rich graphic stacks (emWin, LVGL) without external memory.
When designing with this MCU, choose LQFP-64 over QFN-64 variants for easier rework and breadboard prototypes; route the ERASE pin carefully because pulling it high at reset triggers a full chip erase. Decouple VDDCORE with 100 nF + 4.7 µF ceramic capacitors placed within 5 mm of the pin, and reserve the JTAG/SWD header footprint even in production designs for firmware recovery.
直接替换替代料： ATSAM4SD32BA-ANR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATSAM4SD32BA-ANR （相同外形与封装尺寸） ——差异在于 USB, Package, RoHS Status, ADC, CAN.
快速对比工具——选择替代料号进行并排对比：
ATSAM4SD32BB-AUR
✅ 直接替换📋 参考替代料（不在目录中）
ATSAM4SD32BA-AU
✅ 直接替换✓ 有现货
$9.45 / 个
查看数据手册 →ATSAM4SD32BA-AN
✅ 直接替换✓ 有现货
$6.78 / 个
查看数据手册 →ATSAM4S16CB-CFNR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATSAM4SA16BA-AUR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.45 / 个
查看数据手册 →ATSAM4S8BA-AU
✅ 直接替换✓ 有现货
$3.72 / 个
查看数据手册 →ATSAM4S8BA-MU
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.79 / 个
查看数据手册 →ATSAM4SD32BA-ANR 最大额定值与电气特性
| Core Architecture | ARM Cortex-M4 with FPU and DSP extensions |
| CPU Bit Width | 32-bit |
| Maximum CPU Clock | 120 MHz |
| DMIPS Performance | 1.25 DMIPS/MHz |
| Program Flash | 2 MB (2048 KB) |
| SRAM | 160 KB |
| Core Supply Voltage (VDDCORE) | 1.2 V (typ) |
| I/O Supply Voltage (VDDIO) | 1.62 V to 3.6 V |
| 工作温度范围 | -40 °C to +85 °C (industrial) |
| 封装 | 64-pin LQFP |
| ADC | 12-bit, up to 16 channels |
| DAC | 2x 12-bit |
| USB | USB 2.0 Full-Speed Device/Host with on-chip transceiver |
| CAN | 1x CAN 2.0A/B |
| Ethernet | 10/100 Ethernet MAC (EMAC) with MII/RMII interface |
| MCI/SDIO | HSMCI for SD/SDIO cards |
| External Bus Interface (EBI) | 8/16-bit SRAM, NOR Flash, NAND Flash support |
| Timers | Multiple TC channels, PWM, RTT, RTC |
| Package Mounting Type | Surface Mount |
| MSL 等级 | 3 (per JEDEC J-STD-020) |
| RoHS Compliance | Compliant |
ATSAM4SD32BA-ANR 引脚配置
| 引脚 1 | PB0 — General-purpose I/O / PWM |
| 引脚 2 | PB1 — General-purpose I/O / PWM |
| 引脚 3 | PB2 — General-purpose I/O |
| 引脚 4 | PB3 — General-purpose I/O |
| 引脚 5 | VDDIO — I/O supply voltage (1.62 V to 3.6 V) |
| 引脚 6 | VSSIO — I/O ground |
| 引脚 7 | PB4 — General-purpose I/O |
| 引脚 8 | PB5 — General-purpose I/O |
| 引脚 9 | PB6 — General-purpose I/O |
| 引脚 10 | PB7 — General-purpose I/O |
| 引脚 11 | PB8 — General-purpose I/O |
| 引脚 12 | PB9 — General-purpose I/O |
| 引脚 13 | PB10 — General-purpose I/O |
| 引脚 14 | PB11 — General-purpose I/O |
| 引脚 15 | PB12 — General-purpose I/O |
| 引脚 16 | PB13 — General-purpose I/O |
| 引脚 17 | PB14 — General-purpose I/O |
| 引脚 18 | PB15 — General-purpose I/O |
| 引脚 19 | VDDCORE — Core supply voltage (1.2 V typical) |
| 引脚 20 | VSS — Core ground |
| 引脚 21 | PA0 — General-purpose I/O / AD0 |
| 引脚 22 | PA1 — General-purpose I/O / AD1 |
| 引脚 23 | PA2 — General-purpose I/O / AD2 |
| 引脚 24 | PA3 — General-purpose I/O / AD3 |
| 引脚 25 | PA4 — General-purpose I/O / AD4 |
| 引脚 26 | PA5 — General-purpose I/O / AD5 |
| 引脚 27 | PA6 — General-purpose I/O / AD6 |
| 引脚 28 | PA7 — General-purpose I/O / AD7 |
| 引脚 29 | PA8 — General-purpose I/O / AD8 |
| 引脚 30 | PA9 — General-purpose I/O / AD9 |
| 引脚 31 | PA10 — General-purpose I/O / AD10 |
| 引脚 32 | VDDCORE — Core supply voltage (1.2 V typical) |
| 引脚 33 | VSS — Core ground |
| 引脚 34 | PA11 — General-purpose I/O / AD11 |
| 引脚 35 | PA12 — General-purpose I/O / AD12 |
| 引脚 36 | PA13 — General-purpose I/O / AD13 |
| 引脚 37 | PA14 — General-purpose I/O / AD14 |
| 引脚 38 | PA15 — General-purpose I/O / AD15 |
| 引脚 39 | PA16 — General-purpose I/O |
| 引脚 40 | PA17 — General-purpose I/O |
| 引脚 41 | PA18 — General-purpose I/O |
| 引脚 42 | PA19 — General-purpose I/O |
| 引脚 43 | PA20 — General-purpose I/O |
| 引脚 44 | PA21 — General-purpose I/O |
| 引脚 45 | PA22 — General-purpose I/O |
| 引脚 46 | PA23 — General-purpose I/O |
| 引脚 47 | PA24 — General-purpose I/O |
| 引脚 48 | PA25 — General-purpose I/O |
| 引脚 49 | PA26 — General-purpose I/O |
| 引脚 50 | PA27 — General-purpose I/O |
| 引脚 51 | PA28 — General-purpose I/O |
| 引脚 52 | PA29 — General-purpose I/O |
| 引脚 53 | PA30 — General-purpose I/O |
| 引脚 54 | PA31 — General-purpose I/O |
| 引脚 55 | TDI — JTAG Test Data In |
| 引脚 56 | TDO — JTAG Test Data Out |
| 引脚 57 | TMS — JTAG Test Mode Select / SWDIO |
| 引脚 58 | TCK — JTAG Test Clock / SWCLK |
| 引脚 59 | NRST — Reset input (active low) |
| 引脚 60 | ERASE — Chip erase pin (high at reset triggers full erase) |
| 引脚 61 | HDP — Hardware debug port enable |
| 引脚 62 | VDDIO — I/O supply voltage (1.62 V to 3.6 V) |
| 引脚 63 | VSSIO — I/O ground |
| 引脚 64 | DP — USB Full-Speed Data Plus (with on-chip transceiver) |
典型应用
ATSAM4SD32BA-ANR 适用于 8 应用s: Industrial Human-Machine Interface (HMI) Panels, USB Peripherals and Barcode Scanners, USB-to-Ethernet and USB-to-CAN Bridges, Smart Energy Metering, Building Automation Gateways, Motor Control Front-End Processors, Point-of-Sale (POS) Terminals, HVAC and Climate Controllers.
Industrial Human-Machine Interface (HMI) Panels
The ATSAM4SD32BA-ANR is well suited to industrial HMI panels because its 2 MB Flash can hold emWin or LVGL graphic stacks plus fonts and bitmaps without external memory, and the Cortex-M4 FPU accelerates raster operations. The 12-bit ADC and PWM outputs drive backlight dimming and analog sensor reads, while the EBI bus can connect to an external TFT controller for larger displays. Compared to lower-flash SAM4S variants, the 2 MB Flash allows more language assets and screen templates to coexist. Keep VDDCORE decoupling within 5 mm of the pin to avoid LCD noise on the analog ADC readings.
推荐
USB Peripherals and Barcode Scanners
The integrated USB 2.0 Full-Speed Device/Host controller with on-chip transceiver enables USB HID, CDC, and mass-storage peripherals without external PHY. For barcode scanners, the DMA-fed USB endpoint delivers 12 Mbps sustained throughput while the Cortex-M4 processes image decode and trigger logic. The 160 KB SRAM accommodates frame buffers for 1D/2D decoding libraries. Add a USBLC6-2SC6 ESD array on DP/DM for production robustness and follow USB-IF pull-up resistor recommendations for full-speed enumeration.
推荐
USB-to-Ethernet and USB-to-CAN Bridges
The ATSAM4SD32BA-ANR integrates both USB Full-Speed and 10/100 Ethernet MAC (EMAC), making it a single-chip USB-to-Ethernet gateway. Add an external PHY such as the LAN8720A via RMII for 100 Mbps operation. For industrial protocols, the CAN 2.0A/B controller supports automotive and factory-automation bridging. The 2 MB Flash holds TCP/IP stacks (lwIP) and CANopen or J1939 firmware; the 160 KB SRAM is sufficient for lwIP PBUF buffers. Use MII/RMII according to board layout constraints.
推荐
Smart Energy Metering
Single-phase and three-phase smart electricity meters use the ATSAM4SD32BA-ANR for metrology DSP and for the communication backhaul (MCI for SD-card logging plus optional PLC or RF module). The Cortex-M4 DSP extensions execute FFT-based harmonic analysis on the 12-bit ADC samples, while the hardware FPU accelerates per-sample calibration math. Backup mode with RTC keeps the calendar running during mains loss with sub-2 µA draw, preserving time-of-use tariff schedules. The CAN interface supports DLMS/COSEM over CAN for industrial metering.
推荐
Building Automation Gateways
Building automation gateways aggregate KNX, Modbus, BACnet, and Wi-Fi/Ethernet traffic. The ATSAM4SD32BA-ANR's combination of USB Host, Ethernet MAC, multiple USART/SPI/TWI, and 2 MB Flash for protocol stacks (FreeRTOS + lwIP + KNXnet/IP) makes it a strong choice. The Cortex-M4 with FPU runs encryption (TLS) for cloud uplink while leaving headroom for local control logic. The EBI can interface to an external Wi-Fi module's host interface if needed.
推荐
Motor Control Front-End Processors
In FOC and PFC motor drives, the ATSAM4SD32BA-ANR serves as the supervisory MCU running commutation state machines, while the Cortex-M4 DSP extensions handle fast current-loop math. PWM outputs drive a 3-phase inverter through gate drivers, and the 12-bit ADC samples phase currents synchronously to the PWM center. The CAN interface supports CiA 402 motion-control networking. For higher-frequency loops, pair with a SAM4S16 or SAME70 dual-core design; for low-power fans, the ATSAM4S8CA-AU sibling is sufficient.
推荐
Point-of-Sale (POS) Terminals
POS terminals need USB Host for barcode scanners and printers, Ethernet for payment processing, secure key storage, and a colorful HMI. The ATSAM4SD32BA-ANR covers USB Host, Ethernet MAC, HSMCI for SD-card transaction logs, and 2 MB Flash for application code plus TLS libraries. The hardware AES in the SAM4S accelerates secure transaction handshakes. Use the 12-bit ADC for battery monitoring on portable terminals and the RTC for tamper-resistant timestamping.
推荐
HVAC and Climate Controllers
HVAC controllers combine analog sensing (NTC thermistors, 0-10 V actuator feedback), digital I/O for relays, and a graphical LCD or segment display. The ATSAM4SD32BA-ANR's 12-bit ADC with up to 16 channels handles multiple temperature zones, while PWM outputs drive triac-fired heaters and variable-speed fans. The 2 MB Flash holds complex scheduling algorithms and multi-language UI assets. CAN bus integration supports BACnet or Modbus HVAC networking. Backup mode with RTC keeps schedules running across power cycles.
推荐
推荐产品汇总
工程参考数据： ATSAM4SD32BA-ANR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ATSAM4SD32BB-AUR | ATSAM4SD32BA-AU | ATSAM4SD32BA-AN | ATSAM4S16CB-CFNR | ATSAM4SA16BA-AU | ATSAM4S8BA-AU |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | LQFP-64 | LQFP-64 - same | LQFP-64 - same | LQFP-64 - same | LQFP-64 - same | LQFP-64 - same | LQFP-64 - same |
| Program Flash | 2 MB | 2 MB | 2 MB | 2 MB | 1 MB | 1 MB | 512 KB |
| SRAM | 160 KB | 160 KB | 160 KB | 160 KB | 160 KB | 160 KB | 128 KB |
| Maximum Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Core | Cortex-M4 with FPU | Cortex-M4 with FPU | Cortex-M4 with FPU | Cortex-M4 with FPU | Cortex-M4 with FPU | Cortex-M4 with FPU | Cortex-M4 with FPU |
| USB | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host | USB 2.0 FS Device/Host |
| Ethernet MAC | 10/100 EMAC with MII/RMII | 10/100 EMAC with MII/RMII | 10/100 EMAC with MII/RMII | 10/100 EMAC with MII/RMII | 10/100 EMAC with MII/RMII | 10/100 EMAC with MII/RMII | 10/100 EMAC with MII/RMII |
| CAN | 1x CAN 2.0A/B | 1x CAN 2.0A/B | 1x CAN 2.0A/B | 1x CAN 2.0A/B | 1x CAN 2.0A/B | 1x CAN 2.0A/B | 1x CAN 2.0A/B |
| Silicon Revision | Revision A | Revision B (recommended) | Revision A | Revision A | Revision B | Revision B | Revision A |
| Unit Price (qty 100) | $9.18 | $9.50 | $9.20 | $9.00 | $7.20 | $7.10 | $6.40 |
关键差异点
- Highest flash density in the SAM4S 64-LQFP family （对比 ATSAM4S8BA-AU)
- On-chip Ethernet MAC plus USB Host makes it a single-chip gateway （对比 PIC32MX)
- Revision A silicon - mature and well-characterized （对比 ATSAM4SD32BB-AUR (Revision B))
设计说明
Decouple VDDCORE (pin 19 and pin 32) with a 100 nF X7R ceramic + a 4.7 µF X5R ceramic placed within 5 mm of the pins, and add a 10 µF bulk capacitor near the supply. VDDIO (pin 5 and pin 62) requires a 100 nF ceramic per pin plus a 1 µF bulk. Estimated: at 120 MHz and 1.2 V core, the active current is roughly 30-40 mA, so the LDO supplying VDDCORE must handle at least 50 mA. Use a 3.3 V LDO such as MCP1700 (250 mA) for VDDIO from a 5 V input.
Do NOT leave the ERASE pin floating - tie it to GND through a 10 kΩ resistor. Driving ERASE high during reset triggers a full chip erase of the 2 MB Flash, which can destroy firmware in the field. The NRST pin must have a 10 kΩ pull-up and a 100 nF capacitor to GND for a clean power-on reset. Avoid using PA0-PA3 for high-current loads because they share ADC reference circuits.
Route the USB DP/DM traces as a 90 Ω differential pair with length matching to within 2 mm, keep them short (< 50 mm), and surround them with a ground pour. Place the USBLC6-2SC6 ESD array within 5 mm of the USB connector. For Ethernet, route the RMII signals (50 MHz) with length matching to within 5 mm and keep them away from switching nodes. Reserve a 2x5 0.05" JTAG/SWD header footprint even in production designs to allow firmware recovery.
Estimated: at full 120 MHz CPU + USB + Ethernet activity, the LQFP-64 thermal resistance theta_JA is approximately 50 °C/W, giving a 5-7 °C rise above ambient at 100 mA active current. Industrial-grade operating range (-40 °C to +85 °C) is easily met without a heatsink. The Backup mode with RTC reduces core current below 2 µA, allowing RTC-only operation on a coin cell during mains loss.
合规信息
RoHS compliant per Microchip product page. Industrial-grade temperature range -40 °C to +85 °C. Not AEC-Q100 qualified; for automotive applications consider the SAM V71/V70 family which has AEC-Q100 Grade 2 variants.
