ATSAM4S8CB-AN - 120MHz Cortex-M4 MCU 512KB Flash | Microchip
料号： ATSAM4S8CB-AN ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.64 | $6.64 |
| 10 | $5.95 | $59.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.65 | $2,325.00 |
| 1,000 | $4.2 | $4,200.00 |
ATSAM4S8CB-AN 概述
An ARM Cortex-M4 microcontroller is a 32-bit RISC processor core designed for embedded applications, combining high computational throughput with deterministic interrupt response and a rich DSP instruction set. Within the broader semiconductor taxonomy it belongs to: microcontroller -> MCU -> embedded processor -> semiconductor IC. The Cortex-M4 core specifically adds single-precision floating-point unit (FPU) capability and saturated arithmetic, enabling it to handle motor control loops, audio processing, and signal-chain DSP directly in firmware without an external DSP coprocessor.
Key features of the ATSAM4S8CB-AN include up to 120MHz core clock, 512KB embedded Flash with security bit, 128KB SRAM, peripheral touch controller (PTC), USB 2.0 Full-Speed device/host, two CAN controllers, three UARTs, two I2C buses, two SPIs, and a 10-bit ADC up to 1Msps. The SAM4S family also provides a flexible 16-channel Event System, a 4-channel 32-bit timer/counter, and an external bus interface for off-chip memory expansion.
The architecture pairs the Cortex-M4 core with a multi-layer bus matrix (AHB/APB) and a peripheral DMA controller that offloads data movement from the CPU, enabling deterministic real-time behavior. Power consumption is rated at 200 uA/MHz in dynamic mode at low operating frequency, 30 mA at 100 MHz with all peripherals enabled, and as low as 3 uA in back-up mode with RTC running. The internal voltage regulator and brown-out detector support low-power sleep modes with fast wake-up.
Typical applications include industrial control (PLC modules, sensor hubs, motor drives), consumer electronics (home appliances, smart thermostats), USB peripherals and HID devices, CAN-based automotive body/comfort networks, building automation (HVAC, access control), and IoT edge nodes. The integrated Peripheral Touch Controller (PTC) supports capacitive buttons, sliders, and wheels for HMI designs.
Designers should plan for an external 32.768 kHz crystal for accurate RTC timing and an LDO or DC-DC converter to supply the 3.3V core rail. The 100-pin LQFP exposes most peripherals including full External Bus Interface (EBI), enabling a 16-bit SRAM expansion footprint when in-application firmware exceeds internal Flash.
This page synthesizes distributor pricing, drop-in compatible variants, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： ATSAM4S8CB-AN ——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： ATSAM4S8CB-AN （相同外形与封装尺寸） ——差异在于 ADC, RoHS Status, Package, USB, Mounting Type.
快速对比工具——选择替代料号进行并排对比：
ATSAM4S8CA-CFUR
✅ 直接替换✓ 有现货
$3.95 / 个
查看数据手册 →ATSAM4S8CA-CFU
✅ 直接替换✓ 有现货
$5.2 / 个
查看数据手册 →ATSAM4S8CA-CFN
✅ 直接替换✓ 有现货
$4.8 / 个
查看数据手册 →ATSAM4S8CA-AU
✅ 直接替换✓ 有现货
$5.74 / 个
查看数据手册 →ATSAM4S16CB-CFN
✅ 直接替换✓ 有现货
$4.95 / 个
查看数据手册 →ATSAM4S8CB-AN 最大额定值与电气特性
| Core Architecture | ARM Cortex-M4 (32-bit RISC) |
| 最大时钟频率 | 120 MHz |
| Flash Memory | 512 KB |
| SRAM | 128 KB |
| Supply Voltage Range | 1.62 V to 3.6 V |
| 工作温度范围 | -40C to +105C (extended temp) |
| 封装 | 100-pin LQFP (14x14 mm) |
| 安装类型 | Surface Mount |
| ADC | 10-bit, up to 1 Msps |
| USB | USB 2.0 Full-Speed Device/Host |
| CAN Controllers | 2 |
| UART / SPI / I2C | 3 UART / 2 SPI / 2 I2C |
| Peripheral Touch Controller | Yes (PTC) |
| External Bus Interface | Yes (EBI) |
| DMA Channels | Peripheral DMA controller |
| Power Consumption | 200 uA/MHz dynamic, 30 mA @ 100 MHz, 3 uA back-up (RTC) |
| RoHS 状态 | ROHS3 Compliant |
| Lead-Free | Yes |
ATSAM4S8CB-AN 100-pin lqfp (14x14 mm) 引脚配置指南
ATSAM4S8CB-AN（100-pin lqfp (14x14 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： ATSAM4S8CB-AN.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATSAM4S8CB-AN 适用于 6 应用s: Industrial Control and PLC Modules, USB Peripherals and HID Devices, Home Appliance and Consumer Electronics, Building Automation and HVAC Control, Motor Control and BLDC Drives, IoT Edge Nodes and Sensor Hubs.
Industrial Control and PLC Modules
The ATSAM4S8CB-AN fits industrial PLC and sensor-hub designs thanks to its 120 MHz Cortex-M4 core with FPU, 512 KB Flash for control firmware, and dual CAN 2.0A/B controllers for industrial fieldbus networking. Its -40C to +105C operating range handles cabinet temperature rise, and the 100-pin LQFP exposes an External Bus Interface for adding parallel SRAM for logging buffers. The integrated 10-bit ADC at 1 Msps handles analog sensor sampling for pressure, flow, or temperature inputs. Power consumption at 200 uA/MHz enables efficient idle states between control cycles.
推荐
USB Peripherals and HID Devices
The integrated USB 2.0 Full-Speed device/host controller makes the ATSAM4S8CB-AN ideal for USB peripherals such as keyboards, mice, game controllers, and HID-class industrial input devices. The 512 KB Flash accommodates USB stack plus HID class driver and OEM firmware, while 128 KB SRAM supports double-buffered USB endpoints and report generation. The Cortex-M4 FPU accelerates custom gesture or audio-processing USB devices, and the Peripheral Touch Controller (PTC) supports capacitive touch buttons directly without an external touch IC.
推荐
Home Appliance and Consumer Electronics
The ATSAM4S8CB-AN is well-suited to home appliances (washing machines, refrigerators, induction cooktops, smart thermostats) where the Cortex-M4 core runs motor control or HMI logic and the 512 KB Flash holds the application plus GUI assets. Its 30 mA power consumption at 100 MHz balances throughput with energy budget, and the back-up mode at 3 uA with RTC supports battery-backed clock and wake functions. The Peripheral Touch Controller simplifies front-panel capacitive touch designs with sliders and buttons without an external touch controller IC.
推荐
Building Automation and HVAC Control
For HVAC controllers, access control panels, and building automation gateways, the ATSAM4S8CB-AN provides dual CAN for BACnet or CAN-based sensor trunks, plus USB for service connectivity. The 128 KB SRAM is ample for HVAC scheduling tables and Modbus TCP buffers, and the 10-bit ADC handles NTC temperature sensors directly. The 1.62-3.6 V supply simplifies battery-backed designs for thermostats that must retain time during power loss.
推荐
Motor Control and BLDC Drives
The 120 MHz Cortex-M4 with single-precision FPU makes the ATSAM4S8CB-AN a strong fit for BLDC, PMSM, and stepper motor control algorithms running field-oriented control (FOC) loops at high PWM rates. The integrated PWM outputs, fast 10-bit ADC for current sensing, and quadrature encoder interfaces close the feedback loop deterministically. The 512 KB Flash stores motor calibration tables and FOC firmware, and the 100-pin LQFP exposes all timers plus the EBI for adding external memory when tables are large.
推荐
IoT Edge Nodes and Sensor Hubs
As an IoT edge node or sensor hub, the ATSAM4S8CB-AN runs sensor fusion algorithms on the Cortex-M4 FPU while the PTC handles capacitive wake-up buttons and the ADC digitizes analog sensor inputs. Low-power back-up mode at 3 uA with RTC running allows battery-powered deployments to sleep until a wake event, with the Cortex-M4 waking in microseconds to service SPI/I2C sensors. The 512 KB Flash accommodates over-the-air (OTA) dual-image bootloaders, and the USB facilitates wired provisioning.
推荐
推荐产品汇总
工程参考数据： ATSAM4S8CB-AN ——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 | ATSAM4S8CA-CFUR | ATSAM4S8CA-CFU | ATSAM4S8CA-CFN | ATSAM4S8CA-AU | ATSAM4S16CB-CFN |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin LQFP (14x14 mm) | 100-pin LQFP - same | 100-pin LQFP - same | 100-pin LQFP - same | 100-pin LQFP - same | 100-pin LQFP - same |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 1 MB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| Max Clock Frequency | 120 MHz | 120 MHz | 120 MHz | lower speed grade | 120 MHz | 120 MHz |
| Operating Temperature | -40C to +105C | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C | -40C to +85C |
| USB Controller | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed |
| CAN Controllers | 2 | 2 | 2 | 2 | 2 | 2 |
| 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 | 1.62 V to 3.6 V |
关键差异点
- Extended 105C operating temperature vs industrial-grade siblings （对比 ATSAM4S8CA-CFUR)
- Same 512 KB Flash as SAM4S8CA siblings with full peripheral set （对比 ATSAM4S8BB-UUR)
- Peripheral Touch Controller (PTC) for HMI without external touch IC （对比 ATSAM4S16CA-CFU)
设计说明
The ATSAM4S8CB-AN integrates a 1.2V core LDO that must be supplied from a stable 1.62-3.6V source on VDDCORE/VDDIO. Place a 100 nF ceramic decoupling capacitor within 2 mm of every VDD pin and a bulk 4.7 uF on the main 3.3V rail. Estimated: at 100 MHz with all peripherals active, the device draws up to 30 mA per the datasheet, so the LDO source must provide at least 50 mA headroom for in-rush during PLL lock.
The 100-pin LQFP 14x14 mm package is a fine-pitch (0.5 mm pitch) QFP. Use a 4-layer PCB with a continuous ground plane beneath the IC to provide both thermal dissipation and reference return paths. Fan out signals on inner layers to keep outer layers short, and place the 32.768 kHz crystal within 5 mm of the XIN/XOUT pins with a guard ring tied to analog ground to minimize RTC jitter.
Do not leave the NRST pin floating - it requires a 10 kohm pull-up to VDDIO and a 100 nF capacitor to ground for proper reset behavior. The JTAG/SWD pins (TCK, TMS, TDI, TDO) also require 10-47 kohm pull-ups if not used, otherwise the device may enter an unintended debug state at power-up. The Peripheral Touch Controller (PTC) pins must be configured as analog or the touch sensitivity is degraded.
合规信息
ROHS3 compliant per Microchip product page. Standard part - not AEC-Q100 qualified; for AEC-Q100, choose the ATSAM4S8CA-CFUR automotive sibling.
