ATSAM4S2CB-AN - 120MHz Cortex-M4 MCU 128KB Flash | Microchip (Tape & Reel)
MPN: ATSAM4S2CB-AN ✓ NakahandaATSAM4S2CB-AN Ulas
A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and peripherals into one chip, sitting within the broader hierarchy of embedded processors: Cortex-M4 core -> ARM RISC MCU -> system-on-chip -> embedded control system. MCUs are the workhorses of industrial control, consumer devices, and IoT nodes, where deterministic real-time behavior and low power matter more than raw throughput.
Key features of the ATSAM4S2CB-AN include the Cortex-M4 core with hardware FPU-free DSP instructions (single-cycle MAC, SIMD), a full-speed USB Device port with embedded transceiver, supply operation from 1.62V to 3.6V, and low active power consumption cited by Microchip at approximately 180 uA per MHz. The device operates across the industrial temperature range with gull-wing terminals on a square LFQFP body.
Technically, the SAM4S series implements a three-stage Harvard pipeline with an ARMv7E-M architecture, optional cache, and dual-bank flash implementation across the family (up to 2048 KB on larger variants), enabling safe in-application firmware updates. The peripheral set includes USART, SPI, TWI (I2C), PWM channels, a 12-bit ADC, and a hardware AES/GHASH cryptographic engine on select family members, allowing the same board design to scale flash density from 128 KB to 2 MB without PCB changes.
Typical applications include industrial automation and motor control nodes, consumer and appliance interfaces, USB-equipped instrumentation and sensor bridges, and low-power embedded systems that need Cortex-M4 DSP performance with a long-lived, pin-compatible upgrade path.
When designing with this part, note that at 120 MHz flash wait states are significant, so performance-critical code should be relocated to SRAM or the flash cache enabled; also plan VDDCORE and VDDIO decoupling per the datasheet.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single verified reference point.
Mga alternatibo na pwedeng ilagay na ATSAM4S2CB-AN — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok ATSAM4S2CB-AN (parehas na form factor at footprint) — pagkakaiba sa Core Processor, Number of I/O, Operating Temperature, Package, Packaging.
ATSAM4S4CB-ANR
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
ATSAM4S8CB-ANR
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
ATSAM4S16CB-ANR
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
ATSAM4S2CA-ANR
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
ATSAM4S2CB-AU
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
ATSAM4S2CB-AN Mga Pinakamataas na Rating at Electrical Characteristics
| Core Processor | ARM Cortex-M4 (32-bit RISC) |
| Core Architecture | ARMv7E-M Harvard, 3-stage pipeline |
| Maksimum na Taktiko ng Oras | 120 MHz |
| Flash Memory | 128 KB (128K x 8) |
| SRAM | 64 KB |
| Volte ng Pagbibigay | 1.62 V to 3.6 V |
| Core Voltage | 1.2 V |
| Power Consumption | 180 uA/MHz (typical, per Microchip) |
| USB | Full-speed USB Device port with embedded transceiver |
| Number of I/O | Up to 79 programmable I/O lines |
| Temperature na Operasyon | -40C to +85C (industrial grade) |
| Packhaging | 100-LQFP (14x14 mm), gull-wing, square LFQFP |
| Uri ng Pagpapasok | Surface Mount |
| Terminal Form | Gull Wing |
| Packaging | Tape & Reel (suffix NR) |
| Flash Family Range | Up to 2048 KB within SAM4S family, dual-bank with cache |
| Tindminan RoHS | RoHS compliant (green package per Mouser listing) |
Gabay sa Pin Configuration ng ATSAM4S2CB-AN 100-lqfp (14x14 mm), gull-wing, square lfqfp
Pin configuration para sa ATSAM4S2CB-AN (100-lqfp (14x14 mm), gull-wing, square lfqfp package). Kasama sa digital IC na ito ang GPIO, mga communication interface (UART, SPI, I2C), at mga power pin. Sumangguni sa datasheet ng manufacturer para sa mga alternatibong function ng pin at mga opsyon sa configuration. Mahalaga para sa disenyo ng embedded system at PCB layout.
Wala ng detalyadong pinout data na magagamit para sa ATSAM4S2CB-AN.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
ATSAM4S2CB-AN ay nararapat para sa 6 aplikasyons: Industrial Automation and Control Nodes, USB-Equipped Instrumentation and Test Devices, Consumer Appliance Interfaces and HMI, Low-Power Embedded and IoT Sensor Nodes, Motor Control and Power Conversion Subsystems, Networking Accessories and Embedded Gateways.
Industrial Automation and Control Nodes
The ATSAM4S2CB-AN fits industrial automation nodes because its 120 MHz Cortex-M4 core provides deterministic real-time response, DSP MAC instructions accelerate control-loop math (PID, filters), and the industrial -40C to +85C grade survives factory-floor temperature extremes. In a typical node it reads sensors via its TWI/SPI/USART peripherals, executes control logic, and communicates with a PLC or gateway over RS-485 via a transceiver. Operating from a 3.3V rail with 180 uA/MHz active consumption, it keeps cabinet thermal budgets low, and its 128 KB flash supports robust application code with bootloader-based field updates.
Inirekomenda
USB-Equipped Instrumentation and Test Devices
The embedded full-speed USB Device transceiver is the decisive advantage here: the ATSAM4S2CB-AN implements USB 2.0 full-speed (12 Mbps) device roles - virtual COM ports, HID panels, and data-acquisition bridges - without an external PHY, reducing BOM cost and board area in handheld instruments and lab peripherals. The 120 MHz core sustains USB stack overhead plus signal processing (fixed-point DSP via single-cycle MAC), while 64 KB SRAM buffers acquisition samples between USB transfers. Its industrial temperature grade and 1.62V-3.6V operation from a single 3.3V rail simplify battery and bench-instrument power designs.
Inirekomenda
Consumer Appliance Interfaces and HMI
For appliance user interfaces - touch buttons, segment or small TFT displays, and motor or valve control - the ATSAM4S2CB-AN combines PWM peripherals for backlight and buzzer control, ADC inputs for touch or sensor sensing, and enough Cortex-M4 headroom at 120 MHz to drive HMI logic and communication simultaneously. Green-package RoHS compliance supports consumer regulatory requirements, and the 128 KB flash comfortably holds UI frameworks and localized string tables. Designers value the pin-compatible SAM4S ladder: if a feature update needs more code space, migrating to 512 KB or 1 MB variants requires no PCB respin.
Inirekomenda
Low-Power Embedded and IoT Sensor Nodes
Microchip's SAM4S2C page highlights 180 uA/MHz power consumption, which - combined with the family's power-management and sleep modes detailed in the datasheet - makes the ATSAM4S2CB-AN practical for mains-adjacent and duty-cycled battery IoT nodes. Estimated: at 3.3V and an average 25% duty cycle at 120 MHz, average current is roughly 5-6 mA, feasible for a year on a 3000 mAh cell with deeper sleep between samples. On-chip 12-bit ADC, TWI and USART peripherals connect common MEMS sensors and radios, while 64 KB SRAM holds buffering and lightweight protocol stacks for sub-GHz or BLE companion modules.
Inirekomenda
Motor Control and Power Conversion Subsystems
The SAM4S peripheral set - PWM channels, 12-bit ADC, and general-purpose timers with capture/compare - supports BLDC, stepper, and low-complexity AC motor control. The Cortex-M4's single-cycle MAC executes Clarke/Park transforms and PI loops in fixed-point arithmetic at 120 MHz, comfortably closing current loops in the tens-of-kilohertz range. In a drive board the ATSAM4S2CB-AN typically sequences a gate-driver IC such as a half-bridge driver, samples shunt currents through the ADC, and communicates status over USART or CAN-adjacent links. Its industrial grade suits motor-driven appliances, pumps, fans, and factory automation actuators.
Inirekomenda
Networking Accessories and Embedded Gateways
For accessories such as networked sensors, serial-to-Ethernet bridges, and small gateways, the ATSAM4S2CB-AN provides multiple USARTs, SPI and TWI buses to link PHYs and external MACs, plus USB device for local configuration. The 120 MHz Cortex-M4 with cache-capable flash architecture from the SAM4S datasheet sustains lightweight TCP/IP stacks and protocol translation between RS-232/RS-485 field devices and upstream IP networks. Green RoHS LQFP packaging with gull-wing terminals supports standard SMT assembly for networking hardware volumes, and the 1.62V-3.6V supply integrates cleanly with common PoE-derived or 3.3V rail designs.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for ATSAM4S2CB-AN — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | ATSAM4S4CB-ANR | ATSAM4S8CB-ANR | ATSAM4S16CB-ANR | ATSAM4S2CA-ANR |
|---|---|---|---|---|---|
| Package | 100-LQFP (14x14 mm) | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Max Speed | ARM Cortex-M4, 120 MHz | ARM Cortex-M4, 120 MHz | ARM Cortex-M4, 120 MHz | ARM Cortex-M4, 120 MHz | ARM Cortex-M4, 120 MHz |
| Flash Memory | 128 KB | 256 KB | 512 KB | 1 MB | 128 KB |
| 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 |
| Temperature Grade | Industrial (-40C to +85C) | Industrial | Industrial | Industrial | Industrial |
| Packaging | Tape & Reel (NR suffix) | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
Pangunahing mga Pagkakaiba
- Smallest flash SAM4S variant in the 100-LQFP CB footprint (kumpara saATSAM4S4CB-ANR)
- Full-speed USB device with embedded transceiver (kumpara saATSAM4N16CA-CFUR)
- Cost-optimized 64 KB SRAM / 128 KB flash balance (kumpara saATSAM4S16CB-ANR)
Talaan ng Disenyo
Power the ATSAM4S2CB-AN from a regulated 3.3V rail within the 1.62V-3.6V range. Per the SAM4S datasheet, the device requires a 1.2V VDDCORE domain, typically generated by the on-chip regulator or supplied externally per the datasheet's power-supply options chapter - do not leave this configuration ambiguous at schematic review. Decouple each VDDIO pin pair with 100 nF ceramic capacitors placed within 2 mm, plus bulk 10 uF per supply domain. Estimated: at full 120 MHz active operation (~21.6 mA at 180 uA/MHz, 3.3V) core-plus-clock power is about 71 mW before peripheral and I/O loads.
At 120 MHz, flash access introduces wait states; if performance-critical routines (DSP, control loops) run from flash without cache benefits, effective throughput drops noticeably. Relocate hot code to SRAM or ensure the SAM4S flash cache is enabled and sequential code access is optimized. Another common pitfall: SAM4S parts do NOT include a hardware FPU - software floating point at 120 MHz is many cycles per operation, so use fixed-point math (Q15/Q31) to exploit the single-cycle MAC instead.
Use the 100-LQFP (14x14 mm) footprint with gull-wing pads per IPC-7351 recommendations and place a via-stitched ground plane directly under the die. Route the USB D+/D- pair as a 90-ohm differential pair with matched length, keeping stubs under 5 mm; the embedded transceiver tolerates modest routing but not long mismatched traces. Provide a 10-pin SWD header (SWDIO/SWCLK + NRST) for programming and debug - omitting it forces costly ISP recovery via the UART boot path when flash is locked.
Thermal design is straightforward: Estimated worst-case dissipation with all peripherals active is on the order of 100-150 mV-scale currents at 3.3V, i.e. well under 0.5 W, and the 100-LQFP theta_JA on a standard four-layer board keeps junction rise below ~20C - no heatsink or copper pour beyond the standard ground plane is needed. Verify with the datasheet theta_JA table if your board is two-layer or enclosed, and confirm ambient stays within the industrial -40C to +85C rating including self-heating.
Impormasyon ng Pagsunod sa Kautusan
Mouser lists the package as 'LQFP,GREEN,IND TEMP,MRL' indicating a green (RoHS) industrial-temperature package. REACH, halogen-free, and conflict-minerals status not stated in provided data - verify via Microchip's product compliance portal.
