ATSAM4SD16CA-ANR - 1MB Cortex-M4 MCU, 120MHz, LQFP-100 | Microchip
MPN： ATSAM4SD16CA-ANR ✓ 啟用中ATSAM4SD16CA-ANR 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (SRAM), and a rich set of peripherals such as timers, communication interfaces, and analog blocks. Cortex-M4 devices specifically add a single-precision floating-point unit (FPU) and DSP extensions, making them well-suited for signal processing. Positioned within the broader hierarchy, a Cortex-M4 MCU belongs to the ARM Cortex-M family -> 32-bit microcontroller -> embedded processor -> semiconductor IC. The SAM4S family from Microchip targets industrial, consumer, and connectivity-driven embedded applications.
Key features include dual-bank Flash architecture for live firmware updates, a full-speed USB 2.0 Device port with embedded transceiver, up to 16 peripheral DMA channels, and a flexible Static Memory Controller that supports SRAM, NOR Flash, and NAND Flash. The device operates from 1.62V to 3.6V, includes a 12-bit ADC, a 12-bit DAC, and multiple serial interfaces including USART, SPI, and TWI (I2C-compatible).
Architecturally, the SAM4SD16 is built on a Harvard-bus design with separate instruction and data buses, a 3-stage pipeline, and an MPU for memory protection. The Cortex-M4 core delivers 1.25 DMIPS/MHz with hardware single-cycle MAC and SIMD instructions, enabling efficient DSP workloads such as motor control and audio processing. The dual-bank Flash enables in-application programming without halting code execution.
Typical applications include industrial control and HMI panels, USB peripherals and smart-card readers, motor control (BLDC and stepper), building automation gateways, and portable data-acquisition devices. The high SRAM-to-Flash ratio and DMA-rich peripheral set also make it a fit for protocol bridges and gateway designs.
Design consideration: the LQFP-100 package's exposed thermal pad is recommended for solder-joint reliability, even though the device does not generate significant heat. Decoupling must include a 100nF ceramic on each VDD pin and a bulk 4.7uF near the regulator output.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet alone, helping engineers compare the ATSAM4SD16CA-ANR with same-family variants and cross-brand alternatives in a single view.
直接替換替代品，適用於 ATSAM4SD16CA-ANR — 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： ATSAM4SD16CA-ANR （相同外形與佔位） — 差異在於 ADC, Package, Flash Memory, Operating Temperature, Core.
ATSAM4SD16CA-AUR
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4SD16CA-CU
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ATSAM4SD16CA-AN
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4S16CA-AU
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ATSAM4SA16CA-AUR
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4SD16CA-ANR 最大額定值與電氣特性
| Core Architecture | ARM Cortex-M4 with FPU |
| CPU Bit Width | 32-bit |
| Maximum CPU Clock | 120 MHz |
| Flash Memory | 1024 KB (1 MB) |
| SRAM | 160 KB |
| Operating Voltage Range | 1.62 V to 3.6 V |
| 封裝 | 100-pin LQFP (LFQFP) |
| 安裝類型 | Surface Mount |
| Packaging | Tape & Reel |
| Temperature Grade | Industrial |
| USB Interface | USB 2.0 Full-Speed Device with embedded transceiver |
| ADC | 12-bit |
| DAC | 12-bit |
| DMA Channels | Up to 16 |
| RoHS 狀態 | Compliant |
ATSAM4SD16CA-ANR 腳位配置
| 腳位 1 | PD0 — General-purpose I/O / PWM (also NPCS1) |
| 腳位 2 | PD1 — General-purpose I/O / PWM |
| 腳位 3 | PD2 — General-purpose I/O / URXD1 |
| 腳位 4 | PD3 — General-purpose I/O / UTXD1 |
| 腳位 5 | VDDOUT — Voltage Regulator Output (1.8V core supply) |
| 腳位 6 | VDDIN — Voltage Regulator Input (1.62-3.6V) |
| 腳位 7 | GND — Ground |
| 腳位 8 | VDDIO — I/O Supply Voltage |
| 腳位 9 | XIN — Crystal Oscillator Input (3-20 MHz) |
| 腳位 10 | XOUT — Crystal Oscillator Output |
| 腳位 11 | NRST — External Reset Input (active-low) |
| 腳位 12 | PA0 — GPIO / WKUP0 / PWM |
| 腳位 13 | PA1 — GPIO / WKUP1 / PWM |
| 腳位 14 | PA2 — GPIO / WKUP2 / PWM |
| 腳位 15 | PA3 — GPIO / WKUP3 / PWM |
| 腳位 16 | PA4 — GPIO / WKUP4 / PWM |
| 腳位 17 | PA5 — GPIO / PWM |
| 腳位 18 | PA6 — GPIO / PWM |
| 腳位 19 | PA7 — GPIO / PWM |
| 腳位 20 | VDDCORE — Core Supply Voltage (1.2V regulated) |
| 腳位 21 | GND — Ground |
| 腳位 22 | PA8 — GPIO / PWM |
| 腳位 23 | PA9 — GPIO / URXD0 |
| 腳位 24 | PA10 — GPIO / UTXD0 |
| 腳位 25 | PA11 — GPIO / NPCS0 / PWM |
| 腳位 26 | PA12 — GPIO / MISO / PWM |
| 腳位 27 | PA13 — GPIO / MOSI / PWM |
| 腳位 28 | PA14 — GPIO / SPCK / PWM |
| 腳位 29 | PA15 — GPIO / PWM |
| 腳位 30 | PA16 — GPIO / PWM |
| 腳位 31 | PA17 — GPIO / PWM |
| 腳位 32 | PA18 — GPIO / PWM |
| 腳位 33 | PA19 — GPIO / PWM |
| 腳位 34 | PA20 — GPIO / PWM |
| 腳位 35 | VDDIO — I/O Supply Voltage |
| 腳位 36 | GND — Ground |
| 腳位 37 | PB0 — GPIO / PWM |
| 腳位 38 | PB1 — GPIO / PWM |
| 腳位 39 | PB2 — GPIO / TWD (I2C data) |
| 腳位 40 | PB3 — GPIO / TWCK (I2C clock) |
| 腳位 41 | PB4 — GPIO / PWM |
| 腳位 42 | PB5 — GPIO / PWM |
| 腳位 43 | PB6 — GPIO / PWM |
| 腳位 44 | PB7 — GPIO / PWM |
| 腳位 45 | PB8 — GPIO / PWM |
| 腳位 46 | PB9 — GPIO / PWM |
| 腳位 47 | PB10 — GPIO / PWM |
| 腳位 48 | PB11 — GPIO / PWM |
| 腳位 49 | PB12 — GPIO / PWM |
| 腳位 50 | PB13 — GPIO / PWM |
| 腳位 51 | PB14 — GPIO / PWM |
| 腳位 52 | PB15 — GPIO / PWM |
| 腳位 53 | PB16 — GPIO / PWM |
| 腳位 54 | PB17 — GPIO / PWM |
| 腳位 55 | PB18 — GPIO / PWM |
| 腳位 56 | VDDIO — I/O Supply Voltage |
| 腳位 57 | GND — Ground |
| 腳位 58 | PC0 — GPIO / AD0 (ADC input) |
| 腳位 59 | PC1 — GPIO / AD1 (ADC input) |
| 腳位 60 | PC2 — GPIO / AD2 (ADC input) |
| 腳位 61 | PC3 — GPIO / AD3 (ADC input) |
| 腳位 62 | PC4 — GPIO / AD4 (PWM) |
| 腳位 63 | PC5 — GPIO / AD5 (PWM) |
| 腳位 64 | PC6 — GPIO / AD6 (PWM) |
| 腳位 65 | PC7 — GPIO / AD7 (PWM) |
| 腳位 66 | PC8 — GPIO / AD8 (PWM) |
| 腳位 67 | PC9 — GPIO / AD9 (PWM) |
| 腳位 68 | PC10 — GPIO / AD10 (PWM) |
| 腳位 69 | PC11 — GPIO / AD11 (PWM) |
| 腳位 72 | PC12 — GPIO / AD12 (PWM) |
| 腳位 73 | PC13 — GPIO / AD13 (PWM) |
| 腳位 74 | PC14 — GPIO / AD14 (PWM) |
| 腳位 75 | PC15 — GPIO / AD15 (PWM) |
| 腳位 76 | PC16 — GPIO / PWM |
| 腳位 77 | PC17 — GPIO / PWM |
| 腳位 78 | PC18 — GPIO / PWM |
| 腳位 79 | PC19 — GPIO / PWM |
| 腳位 80 | PC20 — GPIO / PWM |
| 腳位 81 | PC21 — GPIO / PWM |
| 腳位 82 | PC22 — GPIO / PWM |
| 腳位 83 | PC23 — GPIO / PWM |
| 腳位 84 | VDDIO — I/O Supply Voltage |
| 腳位 85 | GND — Ground |
| 腳位 86 | DM — USB Data Minus |
| 腳位 87 | DP — USB Data Plus |
| 腳位 88 | VDDIO — I/O Supply Voltage |
| 腳位 89 | VDDUTMI — USB UTMI Transceiver Supply (3.3V) |
| 腳位 90 | GND — Ground |
| 腳位 91 | TCK / SWCLK — JTAG Test Clock / SWD Clock |
| 腳位 92 | TMS / SWDIO — JTAG Test Mode Select / SWD Data |
| 腳位 93 | TDO / SWO — JTAG Test Data Out / SWD Trace |
| 腳位 94 | TDI — JTAG Test Data In |
| 腳位 95 | ERASE — Flash Erase (active-high) |
| 腳位 96 | PE0 — GPIO / SCL (TWI clock) |
| 腳位 97 | PE1 — GPIO / SDA (TWI data) |
| 腳位 98 | PE2 — GPIO |
| 腳位 99 | PE3 — GPIO |
| 腳位 100 | PE4 — GPIO |
| 腳位 101 | GND (Thermal Pad) — Exposed thermal pad - must be soldered to PCB ground plane |
典型應用
ATSAM4SD16CA-ANR 適用於 6 應用s: USB Peripherals and Smart Card Readers, Industrial HMI and Control Panels, Motor Control and BLDC Drives, Building Automation Gateways, Portable Data Acquisition Systems, Smart Card and Secure Token Readers.
USB Peripherals and Smart Card Readers
The ATSAM4SD16CA-ANR is purpose-built for USB peripheral applications because it integrates a full-speed USB 2.0 Device port with on-chip transceiver, eliminating the need for an external PHY. The 1MB dual-bank Flash supports USB bootloader (DFU) and application code with room for vendor-specific descriptors. The 120 MHz Cortex-M4 core handles USB stack processing and HID/CDC/CCID class protocols without DMA bottlenecks. Placed as the main MCU with 22 ohm series resistors on DP/DM lines and a 1uF VBUS decoupling capacitor, the device delivers a production-ready USB device solution for card readers, barcode scanners, and HID peripherals.
推薦
Industrial HMI and Control Panels
The ATSAM4SD16CA-ANR fits industrial HMI applications through its 120 MHz Cortex-M4 with FPU, 160KB SRAM for graphics framebuffer, and 12-bit ADC for touch-screen and analog sensing. The dual-bank Flash enables secure firmware updates in the field without halting operation - critical for industrial panels that cannot tolerate downtime. With DMA channels supporting TFT LCD data transfer and timers for backlight PWM, the device drives QVGA/WQVGA displays and manages UART-based PLC comms. Industrial temperature grade (-40C to +85C) and 1.62V-3.6V operation support 24V industrial bus systems with appropriate front-end regulation.
推薦
Motor Control and BLDC Drives
The ATSAM4SD16CA-ANR's Cortex-M4 with hardware FPU executes field-oriented control (FOC) loops for BLDC and PMSM motors in real time at the 120 MHz clock rate. The TC (Timer Counter) modules generate 3-phase complementary PWM with dead-time insertion for inverter bridges, while the 12-bit ADC samples phase currents synchronously to PWM edges via hardware triggering. The 160KB SRAM holds full state-space observer variables and PI controller coefficients without external memory. With 1MB Flash, complete motor libraries and CANopen/Modbus stacks fit on-chip, simplifying BOM and improving reliability.
推薦
Building Automation Gateways
The ATSAM4SD16CA-ANR serves as a building-automation gateway MCU due to its rich peripheral mix: multiple USARTs for RS-485 Modbus trunks, TWI for I2C sensors, SPI for LoRa/WiFi modules, and USB for commissioning. The 160KB SRAM buffers data from multiple sensor buses before forwarding via Ethernet or cellular modules. The Cortex-M4 FPU accelerates AES encryption for secure MQTT/HTTPS communication with cloud backends. Industrial temperature rating and 1.62V-3.6V range suit DIN-rail enclosures powered by 24V industrial supplies.
推薦
Portable Data Acquisition Systems
The ATSAM4SD16CA-ANR's low 1.62V minimum supply and efficient Cortex-M4 core support battery-powered data loggers for portable measurement. The 12-bit ADC samples up to 1 MSPS with DMA burst transfer into SRAM, enabling continuous logging of vibration, strain-gauge, or biomedical signals. The 1MB Flash stores days of compressed data without external memory, while USB powers and recharges the system when docked. Industrial temperature range and robust LQFP-100 package suit handheld test equipment used in field service environments.
推薦
Smart Card and Secure Token Readers
The ATSAM4SD16CA-ANR supports smart-card reader designs through its USART configurable for ISO 7816 T=0/T=1 protocols, integrated USB for host connectivity, and DMA channels for high-speed card data transfer. The 160KB SRAM handles secure protocol buffers, while the 1MB Flash stores firmware-update images plus crypto libraries. Hardware single-cycle MAC instructions accelerate AES and DES operations needed for payment terminal security. The Cortex-M4 MPU enforces memory isolation between application and crypto firmware regions for PCI-PTS compliance.
推薦
推薦產品摘要
工程參考資料，適用於 ATSAM4SD16CA-ANR — 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 | ATSAM4SD16CA-AUR | ATSAM4SD16CA-CU | ATSAM4SD16CA-AN | ATSAM4S16CA-AU | ATSAM4SA16CA-AUR |
|---|---|---|---|---|---|---|
| Package | LQFP-100 | LQFP-100 (same) | LQFP-100 (same) | LQFP-100 (same) | LQFP-100 (same) | LQFP-100 (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 1 MB | 1 MB | 1 MB | 1 MB | 512 KB (-50%) | 1 MB |
| SRAM | 160 KB | 160 KB | 160 KB | 160 KB | 128 KB | 160 KB |
| CPU Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| USB 2.0 Full-Speed | Yes (embedded transceiver) | Yes | Yes | Yes | Yes | No |
| Packaging | Tape & Reel | Tray | Tray | Tray | Tray | Tray |
| Temperature Grade | Industrial | Industrial | Industrial | Industrial | Industrial | Industrial |
主要差異化特點
- Integrated USB 2.0 Full-Speed Device transceiver (對比ATSAM4SA16CA-AUR)
- Dual-bank Flash architecture (對比ATSAM4S16CA-AU)
- Same die across multiple packaging options (對比ATSAM4S16CA-AU)
設計說明
The ATSAM4SD16CA-ANR integrates a 1.2V core voltage regulator powered by VDDIN (1.62V-3.6V). Place a 4.7uF bulk capacitor on VDDIN and a 1uF ceramic on VDDCORE. For USB applications, VDDUTMI must be supplied from the same 3.3V rail with a separate 100nF decoupling capacitor. Verify the regulator output voltage on VDDCORE during design validation - undersized decoupling causes core instability and USB enumeration failures.
Route the 50 MHz external crystal traces on the XIN/XOUT pins with symmetric length matching and a ground guard ring. Place the load capacitors (typically 12-22pF depending on crystal ESR) as close to the oscillator pins as possible. Keep the USB DP/DM traces impedance-controlled to 90 ohms differential per USB 2.0 specification. Maintain a continuous ground plane under the LQFP-100 thermal pad for thermal dissipation and electrical reference.
A common pitfall is failing to connect the NRST pin to a proper reset circuit - leaving NRST floating leads to intermittent reset behavior during power-up. Use a 10 kohm pull-up to VDDIO and a 100nF capacitor to ground. The ERASE pin (pin 95) must be pulled low or left NC - driving it high forces a full Flash erase and lockout of the device until next reset. For JTAG/SWD debugging, ensure the SWD pins are accessible via test points for production programming.
合規資訊
Industrial temperature grade (-40C to +85C). Compliant with RoHS Directive 2011/65/EU and REACH SVHC requirements per Microchip product declaration. Not AEC-Q100 qualified - for automotive applications, contact Microchip for AEC-Q100 qualified SAM4S variants.
