ATSAM4S8BA-ANR - ARM Cortex-M4 120MHz 512KB MCU | Microchip
料号： ATSAM4S8BA-ANR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.42 | $8.42 |
| 10 | $7.58 | $75.80 |
| 100 | $6.75 | $675.00 |
| 500 | $6.04 | $3,020.00 |
| 1,000 | $5.4 | $5,400.00 |
ATSAM4S8BA-ANR 概述
An ARM Cortex-M microcontroller is a 32-bit RISC processor core designed for embedded applications that require deterministic real-time response, low power, and rich peripheral integration. The Cortex-M4 variant adds a single-precision FPU and DSP extensions, sitting between the smaller Cortex-M0/M0+ and the higher-end Cortex-M7 in the ARM v7-M architecture hierarchy. Microcontrollers in this class integrate the CPU core, on-chip non-volatile memory, SRAM, and a wide peripheral set into a single package, replacing many discrete components in industrial, consumer, and IoT designs.
Key features of the ATSAM4S8BA-ANR include a Cortex-M4 core with FPU and DSP instructions, 512 KB Flash, 128 KB SRAM, and an enhanced Peripheral Touch Controller supporting capacitive touch interfaces. It provides a wide range of connectivity peripherals including USB 2.0 Full-Speed, up to two CAN controllers, multiple USART/SPI/TWI interfaces, an 8-channel 10-bit ADC, and a 16-bit PWM timer. The device targets industrial and consumer applications that demand deterministic real-time performance with low power consumption.
At the architectural level the SAM4S uses an advanced 90 nm process and integrates a high-bandwidth multi-layer AHB/APB bus matrix. The Cortex-M4 core implements Thumb-2 instruction set with hardware single-cycle MAC and saturating arithmetic, enabling DSP workloads such as audio processing, motor control loops, and sensor fusion without external DSP chips. Up to 8 DMA channels offload data movement between peripherals and memory, further freeing CPU bandwidth.
Typical applications for the ATSAM4S8BA-ANR include industrial control and HMI panels, USB peripherals, motor control for BLDC and stepper drives, smart metering, sensor hubs, and home automation gateways. Designers value the part for its deterministic interrupt latency, mature Atmel/Microchip software ecosystem (ASF, Harmony 3), and pin-compatibility with SAM4N, SAM3S, SAM3N and SAM7S legacy 64-pin devices for easy migration.
Design consideration: ensure decoupling capacitors (100 nF ceramic plus 4.7 uF bulk) are placed within 5 mm of the VDDCORE and VDDIO pins, and that the NRST line is pulled up correctly to guarantee clean Cortex-M4 startup.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： ATSAM4S8BA-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： ATSAM4S8BA-ANR （相同外形与封装尺寸） ——差异在于 Operating Temperature, RoHS Status, Package, SRAM, Flash Memory.
快速对比工具——选择替代料号进行并排对比：
ATSAM4S16BA-ANR
✅ 直接替换📋 参考替代料（不在目录中）
ATSAM4S4BA-ANR
✅ 直接替换📋 参考替代料（不在目录中）
ATSAM4S8BA-AN
✅ 直接替换✓ 有现货
$4.1 / 个
查看数据手册 →ATSAM4S2BA-AU
✅ 直接替换✓ 有现货
$3.71 / 个
查看数据手册 →ATSAM4S16CA-CU
✅ 直接替换✓ 有现货
$4.89 / 个
查看数据手册 →ATSAM4N8BA-MU
✅ 直接替换✓ 有现货
$1.76 / 个
查看数据手册 →ATSAM4S8BA-ANR 最大额定值与电气特性
| Series | SAM4S |
| Core | ARM Cortex-M4 with FPU and DSP |
| Core Architecture | ARM v7-M |
| Maximum CPU Frequency | 120 MHz |
| Program Memory (Flash) | 512 KB (512K x 8) |
| SRAM | 128 KB |
| 数据总线宽度 | 32 bit |
| Supply Voltage (VDDCORE/VDDIO) | 1.62 V to 3.6 V |
| 封装 | 64-LQFP (10x10 mm) |
| 安装类型 | Surface Mount |
| 工作温度 | -40 C to +85 C (industrial) |
| Peripheral Touch Controller (PTC) | Yes (enhanced, capacitive touch) |
| USB | USB 2.0 Full-Speed |
| CAN | Yes (2x CAN) |
| ADC | 10-bit |
| DMA Channels | 8 |
| Supply Current (typical) | 200 uA/MHz (active) |
| RoHS 状态 | Compliant |
| Packaging | Tape & Reel (TR) |
ATSAM4S8BA-ANR 64-lqfp (10x10 mm) 引脚配置指南
ATSAM4S8BA-ANR（64-lqfp (10x10 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： ATSAM4S8BA-ANR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATSAM4S8BA-ANR 适用于 6 应用s: Industrial HMI with TFT-LCD, USB Peripherals and HID Devices, BLDC and PMSM Motor Control, Smart Energy Metering, Sensor Hubs and IoT Gateways, Capacitive Touch User Interfaces.
Industrial HMI with TFT-LCD
The ATSAM4S8BA-ANR is well suited for industrial human-machine-interface panels driving small TFT-LCD displays. The Cortex-M4 at 120 MHz combined with 128 KB SRAM provides sufficient framebuffer memory for 320x240 QVGA panels and the DMAC handles LCD data movement without CPU overhead. Engineers should pair this part with an external SPI-driven TFT controller like the ILI9341 or SSD1963. The -40 C to +85 C industrial temperature rating and 64-LQFP package make it drop-in compatible with existing SAM4S designs.
推荐
USB Peripherals and HID Devices
The ATSAM4S8BA-ANR's integrated USB 2.0 Full-Speed peripheral with on-chip transceiver and 2 KB endpoint FIFO RAM makes it ideal for USB HID, CDC, and custom-class peripherals. The 120 MHz Cortex-M4 core handles USB stack overhead while remaining free for application logic. Common implementations include barcode scanners, custom keyboards, USB-to-UART bridges, and data loggers. The 64-LQFP footprint exposes DP/DM on dedicated pins so PCB layout is straightforward.
推荐
BLDC and PMSM Motor Control
The ATSAM4S8BA-ANR delivers deterministic Cortex-M4 performance for sensorless BLDC and PMSM motor control. The 16-bit PWM timer with dead-time insertion, three-phase PWM complement generation, and Quadrature Decoder interface enable field-oriented control (FOC) loops at 20-50 kHz. The 10-bit ADC with up to 16 channels measures phase currents while the integrated Cortex-M4 FPU accelerates Park/Clarke transforms. The wide 1.62-3.6 V supply and industrial temperature range suit motor drive boards.
推荐
Smart Energy Metering
The ATSAM4S8BA-ANR's combination of Cortex-M4 DSP extensions, 128 KB SRAM, and dual CAN controllers supports single-phase and three-phase smart energy metering. The DSP instructions accelerate RMS and harmonic calculations from ADC samples, while CAN enables integration with building automation networks. The enhanced Peripheral Touch Controller supports capacitive button interfaces on the meter front panel. Industrial temperature range and long-term Microchip supply assurance suit metering deployments.
推荐
Sensor Hubs and IoT Gateways
The ATSAM4S8BA-ANR integrates a Cortex-M4 core, multiple USART/SPI/TWI interfaces, dual CAN, and USB for IoT sensor hubs and edge gateways. The 8-channel DMA offloads data movement from I2C sensors, SPI peripherals, and UART modems, while the 120 MHz core handles protocol stacks such as MQTT-SN or LoRaWAN. With 512 KB Flash and 128 KB SRAM the part runs complete firmware images for sensor fusion and edge analytics, with the industrial temperature range suiting outdoor enclosures.
推荐
Capacitive Touch User Interfaces
The ATSAM4S8BA-ANR's enhanced Peripheral Touch Controller (PTC) drives up to 256 capacitive touch sensors using a driven shield + X/Y matrix architecture. This eliminates external touch ICs in applications such as appliance control panels, smart thermostats, and industrial keypads. The 120 MHz core runs the touch acquisition state machine in parallel with application code, while 128 KB SRAM supports slider/wheel gesture recognition libraries. The 64-LQFP package provides ample GPIO for LED feedback and rotary encoder inputs.
推荐
推荐产品汇总
工程参考数据： ATSAM4S8BA-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 | ATSAM4S16BA-ANR | ATSAM4S4BA-ANR | ATSAM4S8BA-AN | ATSAM4S2BA-AU | ATSAM4N8BA-MU |
|---|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 512 KB | 1024 KB (+100%) | 256 KB (-50%) | 512 KB (same) | 128 KB (-75%) | 512 KB (same) |
| SRAM | 128 KB | 160 KB (+25%) | 64 KB (-50%) | 128 KB (same) | 64 KB (-50%) | 96 KB (-25%) |
| CPU Frequency | 120 MHz | 120 MHz (same) | 120 MHz (same) | 120 MHz (same) | 120 MHz (same) | 100 MHz (-17%) |
| 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 |
| Supply Voltage | 1.62 V to 3.6 V | 1.62 V to 3.6 V (same) | 1.62 V to 3.6 V (same) | 1.62 V to 3.6 V (same) | 1.62 V to 3.6 V (same) | 1.62 V to 3.6 V (same) |
| Packaging | Tape & Reel | Tape & Reel | Tape & Reel | Tray | Tray | Tray |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C (same) | -40 C to +85 C (same) | -40 C to +85 C (same) | -40 C to +85 C (same) | -40 C to +85 C (same) |
关键差异点
- Higher SRAM vs SAM4S2BA-AU （对比 ATSAM4S2BA-AU)
- Higher Flash vs SAM4S4BA-ANR （对比 ATSAM4S4BA-ANR)
- Pin-compatibility with SAM4N/SAM3S/SAM7S legacy （对比 Cross-brand Cortex-M4 MCUs)
- Cortex-M4 FPU vs Cortex-M0+ competitors （对比 Lower-cost Cortex-M0+ MCUs)
设计说明
Place a 100 nF X7R ceramic decoupling capacitor within 5 mm of each VDDCORE and VDDIO pin, plus a shared 4.7 uF bulk capacitor at the regulator output. The SAM4S internal LDO supplies VDDCORE from VDDIO; bypassing both rails is mandatory for stable Cortex-M4 operation across the 1.62-3.6 V range. The NRST line must be pulled up to VDDIO through a 10 kohm resistor and decoupled with 100 nF for clean reset behavior.
Route the 32.768 kHz crystal traces (XIN32/XOUT32) as short and symmetric as possible with a guard ring tied to ground, and place load capacitors (typically 12-22 pF) directly at the MCU pins. For the high-speed main crystal (HSE), keep traces under 5 mm and surround them with ground pour. Avoid routing any switching signals across the crystal area to minimize jitter on the Cortex-M4 clock.
The USB DP/DM traces must be routed as a 90 ohm differential pair with continuous reference ground beneath, kept under 50 mm total length. Place the USB ESD protection device close to the connector. For EMI-sensitive applications, route the SWD/JTAG signals (TMS, TCK, TDO, TDI, NRST) away from noisy power traces and add 4.7 kohm pull-ups on TMS/TCK/NRST to keep the debug interface quiet during normal operation.
Do not leave the BMS (Boot Mode Select) pin floating at startup - it must be tied high for normal Flash boot or low for SAM-BA bootloader entry. Leaving BMS floating causes unpredictable boot behavior. Also, ensure the ERASE pin is not asserted low at power-up, as this triggers a full Flash erase and remap. Engineers migrating from SAM3S firmware must reconfigure the PMC, EFC, and SUPC peripheral base addresses since these differ from SAM3S.
合规信息
RoHS and REACH compliance confirmed per Microchip product page. AEC-Q100 not applicable - this is an industrial-grade MCU, not an automotive-qualified part. Lead-free reflow profile per JEDEC J-STD-020.
