ATSAM4S8CB-AN - 120MHz Cortex-M4 MCU 512KB Flash | Microchip
MPN： ATSAM4S8CB-AN ✓ 啟用中ATSAM4S8CB-AN 概覽
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.
直接替換替代品，適用於 ATSAM4S8CB-AN — 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： ATSAM4S8CB-AN （相同外形與佔位） — 差異在於 ADC, RoHS Status, Package, USB, Mounting Type.
ATSAM4S8CA-CFUR
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4S8CA-CFU
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4S8CA-CFN
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4S8CA-AU
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4S16CB-CFN
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4S8CB-AN 最大額定值與電氣特性
| Core Architecture | ARM Cortex-M4 (32-bit RISC) |
| 最大時脈頻率 | 120 MHz |
| Flash Memory | 512 KB |
| SRAM | 128 KB |
| Supply Voltage Range | 1.62 V to 3.6 V |
| 工作溫度範圍 | -40C to +105C (extended temp) |
| 封裝 | 100-pin LQFP (14x14 mm) |
| 安裝類型 | 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 狀態 | ROHS3 Compliant |
| Lead-Free | Yes |
ATSAM4S8CB-AN 100-pin lqfp (14x14 mm) 腳位配置指南
ATSAM4S8CB-AN（100-pin lqfp (14x14 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATSAM4S8CB-AN.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATSAM4S8CB-AN 適用於 6 應用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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 ATSAM4S8CB-AN — 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 | 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 |
主要差異化特點
- Extended 105C operating temperature vs industrial-grade siblings (對比ATSAM4S8CA-CFUR)
- Same 512 KB Flash as SAM4S8CA siblings with full peripheral set (對比ATSAM4S8BB-UUR)
- Peripheral Touch Controller (PTC) for HMI without external touch IC (對比ATSAM4S16CA-CFU)
設計說明
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.
合規資訊
ROHS3 compliant per Microchip product page. Standard part - not AEC-Q100 qualified; for AEC-Q100, choose the ATSAM4S8CA-CFUR automotive sibling.
