ATSAM4S8BB-UUR - 120MHz Cortex-M4 MCU, 512KB Flash | Microchip
料号： ATSAM4S8BB-UUR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.85 | $4.85 |
| 10 | $4.36 | $43.60 |
| 100 | $3.85 | $385.00 |
| 500 | $3.42 | $1,710.00 |
| 1,000 | $3.05 | $3,050.00 |
ATSAM4S8BB-UUR 概述
A Cortex-M4 microcontroller is a 32-bit RISC processor core designed by ARM Holdings, featuring a single-precision floating-point unit (FPU), a Memory Protection Unit (MPU), and a comprehensive interrupt controller (NVIC). The Cortex-M4 sits within a broader taxonomy: ARM Cortex-M -> 32-bit MCU -> embedded microcontroller -> integrated circuit. The SAM4S family specifically targets consumer, industrial control, and PC peripheral applications where deterministic real-time response, integrated connectivity, and code density are essential.
Key features of the ATSAM4S8BB-UUR include a 1.62 V to 3.6 V supply range, full-speed USB 2.0 Device port with embedded transceiver, up to 16-channel 1 Msps ADC, multiple serial peripherals (USART, SPI, TWI), and a high-speed peripheral bus. The device integrates a flexible clocking system with an internal 8 MHz RC oscillator and PLL, and supports low-power sleep modes down to single-digit microampere current. The WLCSP-64 footprint (4.42 x 3.42 mm) makes it suitable for space-constrained designs such as wearables, IoT edge nodes, and portable instrumentation.
The SAM4S8 architecture implements the Cortex-M4 with Thumb-2 instruction set, optional DSP extensions, and a hardware FPU for floating-point math acceleration. Internal SRAM is organized as 128 KB on the system bus for code/data and an additional 16 KB for fast interrupt-driven tasks. Flash memory is dual-bank capable, enabling in-application programming (IAP) and live firmware updates without external bootloader support.
Typical applications include industrial sensor hubs, USB-connected PC peripherals, smart metering, fitness wearables, and motor control front-ends. The device is also a strong fit for HMI panels and battery-powered data loggers where the low-power sleep modes and integrated USB simplify BOM and PCB area.
When designing with this device, allocate the WLCSP's fine-pitch balls to a 4-layer PCB with microvia fan-out, since 0.4 mm ball pitch is below standard 6-mil via capability. Plan decoupling per the manufacturer's reference schematic, and reserve one full USB DP/DN pair with 90-ohm differential impedance for the integrated USB Device port.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers a single reference for sourcing, comparison, and integration planning of the ATSAM4S8BB-UUR.
直接替换替代料： ATSAM4S8BB-UUR ——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： ATSAM4S8BB-UUR （相同外形与封装尺寸） ——差异在于 Package, ADC, Core Architecture, Program Memory (Flash), Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
ATSAM4S8BA-MU
✅ 直接替换✓ 有现货
$5.79 / 个
查看数据手册 →ATSAM4S4CA-CU
✅ 直接替换✓ 有现货
$3.45 / 个
查看数据手册 →ATSAM4S4AB-AN
✅ 直接替换✓ 有现货
$3.55 / 个
查看数据手册 →ATSAM4S2BB-UUR
✅ 直接替换✓ 有现货
$2.38 / 个
查看数据手册 →ATSAM4S16BA-UUR
✅ 直接替换✓ 有现货
$5.6 / 个
查看数据手册 →ATSAM4S8BB-UUR 最大额定值与电气特性
| Core | ARM Cortex-M4 32-bit RISC |
| Maximum Clock Speed | 120 MHz |
| Flash Memory | 512 KB (512K x 8) |
| SRAM | 128 KB |
| 电源电压 | 1.62 V to 3.6 V |
| Active Power Consumption | 200 uA/MHz (typical) |
| 封装 | 64-ball WLCSP, 4.42 x 3.42 mm |
| 安装类型 | Surface Mount (WLCSP) |
| 工作温度 | -40C to +85C (Industrial) |
| USB Interface | USB 2.0 Full-Speed Device port with embedded transceiver |
| ADC | Up to 16-channel, 12-bit, 1 Msps |
| Communication Peripherals | USART, SPI, TWI (I2C) |
| FPU | Hardware single-precision Floating Point Unit |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
ATSAM4S8BB-UUR 64-ball wlcsp, 4.42 x 3.42 mm 引脚配置指南
ATSAM4S8BB-UUR（64-ball wlcsp, 4.42 x 3.42 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： ATSAM4S8BB-UUR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATSAM4S8BB-UUR 适用于 6 应用s: Industrial Sensor Hub, USB-Connected PC Peripheral, Wearable Fitness Tracker, Smart Meter Data Logger, Battery-Powered HMI Panel, Motor Control Front-End (BLDC FOC).
Industrial Sensor Hub
The ATSAM4S8BB-UUR fits industrial sensor hubs because of its 120 MHz Cortex-M4 core with hardware FPU for processing sensor fusion algorithms, and its 16-channel 12-bit ADC sampling at up to 1 Msps. The 128 KB SRAM accommodates multi-axis IMU buffers and Kalman filter state, while the 512 KB Flash stores firmware for Modbus, IO-Link, or proprietary protocols. The 1.62-3.6 V supply tolerates 24 V industrial rails when paired with a switching pre-regulator. Integrated USB enables field firmware upgrades via the same connector used for commissioning, reducing field service time.
推荐
USB-Connected PC Peripheral
The integrated USB 2.0 Full-Speed Device port with on-chip transceiver eliminates the need for an external PHY, simplifying USB HID, CDC, or vendor-class peripherals. The 120 MHz Cortex-M4 handles HID reports, custom protocols, and LED/display updates with ample headroom. The 512 KB Flash accommodates USB stack plus application logic, and 128 KB SRAM supports double-buffered endpoint transfers at 12 Mbps. The 4.42 x 3.42 mm WLCSP footprint suits compact dongles and embedded modules that plug directly into a USB-C receptacle with appropriate routing.
推荐
Wearable Fitness Tracker
Wearable designs benefit from the ATSAM4S8BB-UUR's WLCSP-64 (4.42 x 3.42 mm) footprint and 200 uA/MHz active current. At 48 MHz with all peripherals off in Sleep mode, the device draws single-digit microamps with RTC running, extending coin-cell runtime. The Cortex-M4 FPU accelerates step-counting and motion-classification DSP algorithms, while 128 KB SRAM buffers sensor windows. The USB port enables direct charging/firmware update without an external interface IC, and the -40 to +85 C operating range handles body-temperature extremes and outdoor use.
推荐
Smart Meter Data Logger
Smart meters demand long retention and reliable RTC-backed time stamping. The ATSAM4S8BB-UUR's dual-bank 512 KB Flash supports wear-leveled event logging with in-application programming, while 128 KB SRAM buffers measurement frames between radio transmissions. The 12-bit ADC with 16 channels handles multi-phase current/voltage sensing, and the 1.62-3.6 V supply allows direct connection to a 3.6 V Li-SOCl2 backup cell. Industrial -40 to +85 C operation and low Sleep current extend battery life to 10+ years in remote metering deployments.
推荐
Battery-Powered HMI Panel
Small HMI panels use the ATSAM4S8BB-UUR to drive TFT displays and read capacitive touch via SPI/I2C peripherals. The 120 MHz Cortex-M4 with FPU handles LVGL/EmWin graphics rendering, while the 512 KB Flash stores fonts and graphics assets. The integrated USB simplifies firmware updates from a host PC. The 64-ball WLCSP allows compact panel designs under 30 x 30 mm. Sleep modes drop consumption when the panel is idle, preserving battery life in portable test instruments or hand-held operator terminals.
推荐
Motor Control Front-End (BLDC FOC)
Sensorless BLDC FOC requires fast ADC sampling and DSP throughput - both delivered by the ATSAM4S8BB-UUR's 120 MHz Cortex-M4 with single-cycle MAC and hardware FPU. The 1 Msps ADC synchronizes to PWM for current sensing, and 128 KB SRAM holds observer state vectors. The 512 KB Flash fits FOC libraries plus application code for pumps, fans, or e-bike controllers under 1 kW. The WLCSP-64 footprint suits integrated motor-driver modules where PCB area is constrained. Industrial temperature grade supports under-hood automotive and white-goods applications.
推荐
推荐产品汇总
工程参考数据： ATSAM4S8BB-UUR ——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 | ATSAM4S8BA-MU | ATSAM4S4CA-CU | ATSAM4S2BB-UUR | ATSAM4S16BA-UUR |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | WLCSP-64 (4.42x3.42 mm) | LQFP-64 | LQFP-64 | WLCSP-64 | WLCSP-64 |
| Flash Memory | 512 KB | 512 KB | 256 KB | 128 KB | 1 MB |
| SRAM | 128 KB | 128 KB | 64 KB | 64 KB | 192 KB |
| Max Clock Speed | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Core | ARM Cortex-M4 | ARM Cortex-M4 | ARM Cortex-M4 | ARM Cortex-M4 | ARM Cortex-M4 |
| USB Interface | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device |
| Supply Voltage | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
关键差异点
- WLCSP-64 smallest-in-class footprint with same SAM4S8 die （对比 ATSAM4S8BA-MU (LQFP-64))
- 512 KB Flash doubled over lower-tier ATSAM4S2 （对比 ATSAM4S2BB-UUR (128 KB Flash))
- 128 KB SRAM for large sensor buffers （对比 ATSAM4S4CA-CU (64 KB SRAM))
设计说明
The 64-ball WLCSP uses 0.4 mm ball pitch, which is below standard 6-mil (0.15 mm) via fabrication capability. Use a 4-layer PCB with microvia (laser-drilled) stack-up; the top layer fans out from each ball to a microvia pad, then inner layers carry signals. Per Microchip SAM4S hardware design notes, place a continuous ground plane under the WLCSP to improve thermal dissipation and reduce EMI. Avoid placing tall components within 2 mm of the WLCSP edges to allow for underfill rework if needed.
Decouple VDDIN and VDDIO with a 10 uF bulk + 100 nF high-frequency capacitor pair placed within 3 mm of each pin pair. The internal 1.2 V LDO requires its own 1 uF + 10 nF pair on VDDCORE. Per the SAM4S datasheet, VDDCORE should never be driven externally; it is internal-regulator output only. Adding a ferrite bead on VDDIO before the analog supply (VDDANA) reduces ADC reference noise by 6-10 dB.
Do not confuse the UUR suffix (WLCSP-64, industrial temp, tape & reel) with UUR (LQFP-64) or MNR variants - they have different ball maps and footprints. Always verify the pin 1 marker on the package top mark; for WLCSP, A1 is identified by laser marking per JEDEC. For the integrated USB Device port, place the 90-ohm differential pair with no more than 2 vias on each line and match lengths within 150 mil. Failure to do so risks USB compliance test failures.
Estimated: at 120 MHz with all peripherals active at 3.3 V, the ATSAM4S8BB-UUR core draws approximately 24 mA (200 uA/MHz x 120 MHz), dissipating 79 mW. The WLCSP-64 has a typical theta-JA of 35-45 C/W on a 4-layer JEDEC EIA/JESD51 test board, yielding a self-heating rise of 3-4 C - well within operating range. For continuous USB traffic and high peripheral utilization, monitor junction temperature; consider copper-pour heat spreading on inner layers.
合规信息
RoHS compliance per Microchip product page. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified - for automotive applications consider SAM V71/V70 family or ATSAM4S16C automotive variants.
