ATSAM4SA16CA-CU - 120MHz Cortex-M4 MCU 1MB Flash | Microchip
MPN: ATSAM4SA16CA-CU ✓ NakahandaATSAM4SA16CA-CU Ulas
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (typically Flash), working memory (SRAM), and peripherals such as timers, ADC/DAC, communication controllers, and GPIO. MCUs belong to the embedded systems hierarchy: MCU -> microcontroller -> embedded processor -> semiconductor IC. Cortex-M class MCUs are designed for deterministic interrupt-driven firmware, deterministic interrupt latency, and ultra-low power operation, and they dominate consumer, industrial, and IoT applications due to their energy efficiency and broad toolchain support.
Key features of the ATSAM4SA16CA-CU include the high-performance 120 MHz Cortex-M4 core with DSP extensions, 1 MB on-chip Flash for code and data, 160 KB SRAM, 79 general-purpose I/O lines, and a multilayer bus matrix with multi-channel DMA for high data-rate communication. The peripheral set comprises USB 2.0 Full-Speed, up to four UART/USART, three TWI (I2C), two SPI, one HS-SPI, an EMAC 10/100 Ethernet MAC, PWM, 12-bit ADC, 12-bit DAC, and external bus interface supporting 8-bit data with 24-bit address bus width.
The SAM4S architecture leverages a multi-layer AHB/APB bus matrix that allows simultaneous master access from the CPU, DMA controller, and peripherals, eliminating contention. The peripheral DMA controller (PDC) and dedicated DMA channels feed high-bandwidth interfaces such as Ethernet and HS-SPI without CPU intervention, enabling deterministic real-time response in motor control and communication gateway designs.
Typical applications include industrial automation controllers, building automation gateways, smart energy metering, POS terminals, USB peripherals, motor control (BLDC/PMSM), and embedded connectivity nodes. Pin-to-pin compatibility with SAM3N, SAM3S (64- and 100-pin), and SAM7S legacy products enables smooth upward migration without PCB rework.
When designing with the ATSAM4SA16CA-CU, verify that the 100-pin TFBGA PCB layout uses microvia-compatible stack-up, since the 0.8 mm ball pitch requires advanced assembly processes. Plan decoupling with 100 nF per power pin cluster and a 4.7 uF bulk capacitor per supply rail to suppress switching transients.
This page synthesizes distributor pricing, pin-to-pin compatible drop-in alternatives, and PCB design guidance not consolidated in the manufacturer datasheet.
Mga alternatibo na pwedeng ilagay na ATSAM4SA16CA-CU — 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 ATSAM4SA16CA-CU (parehas na form factor at footprint) — pagkakaiba sa Package, RoHS Status, CAN, ADC, Core.
ATSAM4SA16CA-AUR
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →ATSAM4SA16CA-ANR
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →ATSAM4SA16BB-ANR
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →ATSAM4SA16BA-AUR
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →ATSAM4S16CB-CFN
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →ATSAM4S8CB-CFN
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →ATSAM4S8CB-CFNR
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →ATSAM4SA16CA-CU Mga Pinakamataas na Rating at Electrical Characteristics
| Core Architecture | ARM Cortex-M4 with FPU and DSP |
| Bit Width | 32-bit |
| Maximum CPU Frequency | 120 MHz |
| Program Memory (Flash) | 1 MB (1024 KB) |
| SRAM | 160 KB |
| Instruction Cache | 2 KB |
| MPU (Memory Protection Unit) | Yes |
| GPIO Lines | 79 |
| Packhaging | 100-pin TFBGA (9x9 mm) |
| Uri ng Pagpapasok | Surface Mount |
| Temperature na Operasyon | -40C to +85C (Industrial) |
| Volte ng Pagbibigay | 1.2 V core / 3.3 V I/O (typical) |
| External Bus Interface | 8-bit data, 24-bit address |
| ADC Resolution | 12-bit |
| DAC Resolution | 12-bit |
| DMA Channels | Multi-channel DMA + Peripheral DMA Controller (PDC) |
| Communication Interfaces | USB 2.0 FS, EMAC 10/100, 4x USART, 3x TWI, 2x SPI, 1x HS-SPI |
| Instruction Set | Thumb-2, DSP extensions |
| Tindminan RoHS | Compliant |
| Pin-to-Pin Compatibility | SAM3N, SAM3S (64/100-pin), SAM7S legacy |
Gabay sa Pin Configuration ng ATSAM4SA16CA-CU 100-pin tfbga (9x9 mm)
Pin configuration para sa ATSAM4SA16CA-CU (100-pin tfbga (9x9 mm) 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 ATSAM4SA16CA-CU.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
ATSAM4SA16CA-CU ay nararapat para sa 6 aplikasyons: Industrial Automation Controllers, USB Peripherals and HID Devices, Smart Energy Meters and Gateways, POS Terminals and Payment Devices, Motor Control (BLDC/PMSM) Drives, Building Automation Gateways.
Industrial Automation Controllers
The ATSAM4SA16CA-CU is well suited for industrial PLC and HMI controllers thanks to its 120 MHz Cortex-M4 with DSP extensions, which provides the computational headroom for PID loops and fieldbus protocol stacks. The 1 MB Flash accommodates full IEC 61131-3 runtime plus user logic, while 160 KB SRAM handles Ethernet and CAN buffering without dropping packets. Industrial-grade -40C to +85C operation plus 79 GPIO support 24V optically-isolated inputs and relay outputs. The peripheral DMA controller (PDC) offloads high-speed communication such as 10/100 Ethernet MAC, allowing deterministic response in multi-axis motion systems.
Inirekomenda
USB Peripherals and HID Devices
The ATSAM4SA16CA-CU integrates USB 2.0 Full-Speed device/host/OTG controllers suitable for barcode scanners, custom HID peripherals, and data loggers. Its 120 MHz Cortex-M4 plus DSP instructions allow on-the-fly data compression, while 1 MB Flash holds USB class drivers and application firmware. The 160 KB SRAM is sufficient for USB endpoint buffering plus protocol state machines. With 79 GPIO and multiple USART/SPI ports, designers can simultaneously support USB plus auxiliary sensors or displays without external bus-expanders.
Inirekomenda
Smart Energy Meters and Gateways
The ATSAM4SA16CA-CU fits single-phase and poly-phase smart electricity meter designs, where 12-bit ADC accuracy and DSP extensions enable real-time power-quality calculations. The integrated 10/100 EMAC supports HAN (Home Area Network) connectivity to AMI concentrators, while the 1 MB Flash stores metrology library plus DLMS/COSEM protocol stack. The multilayer bus matrix and DMA controller handle simultaneous sampling of voltage/current channels without jitter. Industrial -40C to +85C operation tolerates outdoor meter enclosure thermal stress.
Inirekomenda
POS Terminals and Payment Devices
The ATSAM4SA16CA-CU drives POS terminal designs combining secure PIN entry, contactless card readers, and TCP/IP network connectivity. The Cortex-M4 with hardware FPU accelerates RSA and ECC cryptographic operations for payment transaction security, while 1 MB Flash holds firmware plus EMVCo level 2 libraries. USB 2.0 Full-Speed, multiple USART, and SPI ports connect to printers, NFC readers, and secure modules. The 100-pin TFBGA package minimizes PCB footprint for compact handheld POS form factors.
Inirekomenda
Motor Control (BLDC/PMSM) Drives
The ATSAM4SA16CA-CU drives sensorless and sensored BLDC/PMSM motor controllers using its Cortex-M4 DSP extensions for Park/Clarke transforms and field-oriented control (FOC) algorithms. PWM outputs from the motor-control peripheral generate complementary 3-phase gate drive signals with hardware dead-time insertion. 12-bit ADC with multi-channel DMA sampling current and back-EMF inputs simultaneously at high PWM rates. Industrial -40C to +85C and 79 GPIO allow direct connection to gate drivers, Hall sensors, and encoder feedback.
Inirekomenda
Building Automation Gateways
The ATSAM4SA16CA-CU builds BACnet, Modbus, or KNX building automation gateways interfacing HVAC, lighting, and access-control subsystems. Its 10/100 EMAC plus four USART and three TWI (I2C) buses connect to multiple fieldbus segments concurrently, while the 1 MB Flash stores gateway routing tables and web configuration interfaces. The Cortex-M4 at 120 MHz runs the full TCP/IP stack plus TLS/DTLS without external network processors. The 100-pin TFBGA supports compact DIN-rail gateway enclosures with extended -40C to +85C industrial temperature range.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for ATSAM4SA16CA-CU — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | ATSAM4SA16CA-AUR | ATSAM4SA16CA-ANR | ATSAM4SA16BB-ANR | ATSAM4SA16BA-AUR | ATSAM4S16CB-CFN | ATSAM4S8CB-CFN | ATSAM4S8CB-CFNR |
|---|---|---|---|---|---|---|---|---|
| Package | 100-pin TFBGA (9x9 mm) | LQFP-64 | LQFP-64 | LQFP-64 | LQFP-64 | LQFP-100 | LQFP-100 | LQFP-100 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | 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 | ARM Cortex-M4 120 MHz | ARM Cortex-M4 120 MHz | ARM Cortex-M4 120 MHz |
| Flash | 1 MB | 1 MB | 1 MB | 1 MB | 1 MB | 1 MB | 512 KB | 512 KB |
| SRAM | 160 KB | 160 KB | 160 KB | 160 KB | 160 KB | 160 KB | 128 KB | 128 KB |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| USB 2.0 FS | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Ethernet MAC | 10/100 EMAC | 10/100 EMAC | 10/100 EMAC | 10/100 EMAC | 10/100 EMAC | 10/100 EMAC | 10/100 EMAC | 10/100 EMAC |
| Pin-to-Pin Compatible | Reference (SAM4S family) | No (LQFP-64 vs TFBGA-100) | No (LQFP-64 vs TFBGA-100) | No (LQFP-64 vs TFBGA-100) | No (LQFP-64 vs TFBGA-100) | No (LQFP-100 vs TFBGA-100) | No (LQFP-100 vs TFBGA-100) | No (LQFP-100 vs TFBGA-100) |
Pangunahing mga Pagkakaiba
- Largest Flash density in SAM4S 100-pin TFBGA family (kumpara saATSAM4S8CB-CFN)
- TFBGA package for compact PCB layouts (kumpara saATSAM4S16CB-CFN)
- Pin-to-pin compatible with SAM3S migration path (kumpara saATSAM4SA16CA-AUR)
Talaan ng Disenyo
The 100-pin TFBGA package uses 0.8 mm ball pitch and requires a PCB stack-up with microvias and 0.4 mm or smaller trace/spacing rules. Estimated: standard 4-layer 1 oz copper FR-4 with 0.2 mm laser-drilled microvias is sufficient for production assembly per IPC-7093 design guidelines. Plan for X-ray inspection during prototyping to verify BGA solder joint quality, since visual inspection of 0.8 mm pitch BGA is impractical.
Place 100 nF X7R ceramic decoupling capacitors within 2 mm of each VDD/VDDIO power pin pair, plus a 4.7 uF bulk capacitor per supply rail. Estimated: with 120 MHz operation and 79 GPIO toggling simultaneously, peak transient current reaches approximately 150 mA, requiring low-impedance power distribution. Use a ground flood on the top layer stitched to the internal ground plane with 0.5 mm via arrays every 5 mm for low inductance return paths.
Verify the silicon revision before firmware development. The ATSAM4SA16CA-CU is revision A silicon, while ATSAM4SA16BA/B is revision B. According to Microchip errata documents, revision A has known issues that revision B corrects, particularly around USB DMA and EMAC operation. Plan for migration to revision B in new designs to avoid field-update risk. Boot pins and JTAG/SWD interfaces require 10 kohm pull-ups on NRST and pull-downs on TST for normal operation.
Keep the 25 MHz external crystal within 5 mm of the XIN/XOUT pins with a continuous ground reference plane underneath. Estimated: trace impedance mismatch or excessive loading capacitance will cause crystal startup failures and frequency drift at temperature extremes. Use guarded routing for the USB DP/DM differential pair with 90 ohm differential impedance and length matching within 150 mil. Place the 33 ohm series termination resistors within 5 mm of the MCU pins.
Impormasyon ng Pagsunod sa Kautusan
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature range. Not AEC-Q100 qualified - choose SAM V71/V70/SAM E70 automotive variants for AEC-Q100 requirements.