ATSAMA5D44B-CUR - 600MHz ARM Cortex-A5 MPU, 361-TFBGA | Microchip
MPN: ATSAMA5D44B-CUR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $17.2 | $172.00 |
| 100 | $15.6 | $1,560.00 |
| 500 | $13.95 | $6,975.00 |
| 1,000 | $12.4 | $12,400.00 |
ATSAMA5D44B-CUR Overview
An ARM Cortex-A5 MPU is a 32-bit applications processor core designed to balance performance with low power consumption. It belongs to the broader hierarchy of ARM Cortex applications processors (Cortex-A5 -> Cortex-A family -> ARMv7-A architecture -> applications class cores) and typically runs full operating systems such as Linux or Android. The SAMA5D4 family targets industrial HMI, IoT gateways, and connected displays where deterministic response and rich peripheral integration are required.
Key features include a 600 MHz core frequency, NEON SIMD media engine, hardware floating-point unit, dual Ethernet GMAC, dual CAN-FD, high-speed USB host/device, image sensor interface (ISI), TFT LCD controller, and hardware crypto accelerators (AES, SHA, TRNG). The 361-TFBGA package offers extensive I/O with industrial-grade -40C to +85C operation and 1.08V to 1.32V core supply.
Architecturally, the SAMA5D4 combines an ARMv7-A Cortex-A5 core with a 128 KB unified L2 cache, dedicated SRAM banks for low-latency access, and a multilayer bus matrix that arbitrates between CPU, peripherals, and external memory controllers (DDR2/LPDDR/NAND/NOR). The integrated LCD controller and image sensor interface (ISI) make it well suited for graphical HMI panels and vision-based IoT endpoints.
Typical applications include industrial HMI panels, IoT gateways, smart energy meters, building automation controllers, medical patient monitors, and POS terminals. The wide peripheral set reduces BOM cost by eliminating external Ethernet controllers, CAN transceivers (when using internal CAN-FD), and crypto co-processors.
When designing with this part, ensure the PCB land pattern matches the 0.8 mm pitch TFBGA-361 footprint and that DDR2/LPDDR traces are length-matched per the Microchip hardware design guidelines. Decoupling requires 100 nF X7R capacitors adjacent to each VDD pin plus bulk polymer capacitors on the 1.2V and 3.3V rails.
Drop-in alternatives for ATSAMA5D44B-CUR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ATSAMA5D44B-CUR (same form factor and footprint) — differing in Package, Ethernet, USB, Operating Temperature, CAN.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAMA5D44B-CU
✅ Drop-In✓ In Stock
$24.95 / Unit
View Datasheet →ATSAMA5D44A-CUR
✅ Drop-In✓ In Stock
$11.67 / Unit
View Datasheet →ATSAMA5D43B-CUR
✅ Drop-In✓ In Stock
$10.45 / Unit
View Datasheet →ATSAMA5D43A-CUR
✅ Drop-In✓ In Stock
$9.83 / Unit
View Datasheet →ATSAMA5D42B-CUR
✅ Drop-In✓ In Stock
$11.95 / Unit
View Datasheet →ATSAMA5D44B-CUR Maximum Ratings & Electrical Characteristics
| Family | SAMA5D4 series (Atmel/Microchip ARM Cortex-A5 MPU) |
| Core | ARM Cortex-A5 (32-bit, ARMv7-A) with NEON + FPU |
| Maximum CPU Frequency | 600 MHz |
| L1 Cache | 32 KB I-cache + 32 KB D-cache |
| L2 Cache | 128 KB unified |
| Internal ROM | 128 KB |
| Internal SRAM | 128 KB |
| Core Supply Voltage | 1.08 V to 1.32 V (typical 1.2 V) |
| I/O Supply Voltage | 1.65 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (industrial) |
| Package | 361-TFBGA (16x16 mm), 0.8 mm pitch |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| External Memory Bus | DDR2/LPDDR, NAND Flash, NOR Flash, SRAM |
| Ethernet | 2x 10/100/1000 GMAC with IEEE 1588 |
| CAN | 2x CAN-FD controllers |
| USB | 2x USB 2.0 High-Speed Host + 1x USB 2.0 Device |
| Display | TFT LCD controller up to 2048x2048 |
| Image Sensor Interface (ISI) | Yes |
| Crypto Acceleration | AES, SHA-1/2, TRNG |
| RoHS Status | Compliant |
ATSAMA5D44B-CUR 361-tfbga (16x16 mm), 0.8 mm pitch Pin Configuration Guide
Pin configuration for ATSAMA5D44B-CUR (361-tfbga (16x16 mm), 0.8 mm pitch package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for ATSAMA5D44B-CUR.
Refer to the datasheet for full pin configuration.
Typical Applications
ATSAMA5D44B-CUR is suitable for 6 applications: Industrial HMI Panels, IoT Gateways, Smart Energy Meters, Building Automation Controllers, Medical Patient Monitors, POS Terminals and Kiosks.
Industrial HMI Panels
The ATSAMA5D44B-CUR is engineered for industrial HMI panels thanks to its 600 MHz ARM Cortex-A5 core with NEON engine and dedicated TFT LCD controller supporting resolutions up to 2048x2048. The integrated image sensor interface (ISI) enables direct camera input for vision-assisted operator interfaces, while hardware AES/SHA/TRNG accelerators secure boot and OTA updates. Operating across -40 C to +85 C, the part tolerates factory floor temperature swings. Two Gigabit Ethernet MACs with IEEE 1588 timestamping allow PTP-synchronized multi-panel installations, and the linux4sam BSP provides mainline Linux kernel support with Qt/EGL graphics stacks.
Recommended
IoT Gateways
The ATSAMA5D44B-CUR excels in industrial IoT gateways where its 600 MHz Cortex-A5 handles protocol conversion, edge analytics, and secure cloud connectivity. Hardware crypto blocks (AES-256, SHA-256, TRNG) accelerate TLS/DTLS handshakes, while dual CAN-FD controllers interface with industrial fieldbuses and vehicle networks. Two GMACs with 1588 hardware timestamping enable precise synchronization across distributed sensor networks, and the low-power SAMA5D4 architecture minimizes idle consumption for always-on deployments. Linux + container runtimes run natively on this MPU.
Recommended
Smart Energy Meters
Smart energy meters benefit from the ATSAMA5D44B-CUR's dual CAN-FD controllers for multi-bus metering architectures, its hardware crypto blocks for tamper-resistant signed firmware, and the 600 MHz Cortex-A5 with NEON engine for real-time DSP of power-quality measurements. The industrial -40 C to +85 C temperature range supports outdoor meter enclosures, while the dual GMAC enables both HAN and NAN connectivity. According to the Microchip datasheet, low-power standby modes extend battery-backed meter lifetime beyond 10 years.
Recommended
Building Automation Controllers
Building automation controllers leverage the ATSAMA5D44B-CUR for its dual Gigabit Ethernet (for BACnet/IP, KNX, and Modbus TCP backbones), two CAN-FD interfaces for HVAC and lighting bus segments, and hardware crypto for secure remote management. The TFT LCD controller drives integrated touch panels for room controllers, while the 600 MHz Cortex-A5 with NEON accelerates rule-engine processing for complex scheduling and analytics. Linux support via linux4sam enables integration with open-source BACnet stacks and Node-RED for rapid IoT integration.
Recommended
Medical Patient Monitors
Medical patient monitors use the ATSAMA5D44B-CUR for its dedicated TFT LCD controller (driving high-resolution waveforms and vital-sign displays), image sensor interface (for camera-based patient observation), and hardware crypto for HIPAA-compliant data encryption. The 600 MHz Cortex-A5 with NEON SIMD engine accelerates ECG/EEG DSP algorithms, while the industrial temperature range and MTBF support 24/7 clinical deployment. The 361-TFBGA package provides high pin density for multi-channel analog front-end integration.
Recommended
POS Terminals and Kiosks
POS terminals and self-service kiosks rely on the ATSAMA5D44B-CUR's TFT LCD controller for touch displays, dual USB 2.0 high-speed host for peripherals (barcode scanners, receipt printers, MSR readers), and hardware AES/SHA for PCI-PTS compliant payment transaction security. The 600 MHz Cortex-A5 with NEON engine runs Android or Linux POS applications smoothly, while the dual CAN-FD enables integration with automotive fleet and fuel-station controllers. Industrial temperature grade supports semi-outdoor kiosk deployments.
Recommended
Recommended Products Summary
Engineering reference data for ATSAMA5D44B-CUR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAMA5D44B-CU | ATSAMA5D44A-CUR | ATSAMA5D43B-CUR | ATSAMA5D43A-CUR | ATSAMA5D42B-CUR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 361-TFBGA (16x16 mm) | 361-TFBGA (16x16 mm) | 361-TFBGA (16x16 mm) | 361-TFBGA (16x16 mm) | 361-TFBGA (16x16 mm) | 361-TFBGA (16x16 mm) |
| CPU Core | ARM Cortex-A5 600 MHz | ARM Cortex-A5 600 MHz | ARM Cortex-A5 600 MHz | ARM Cortex-A5 600 MHz | ARM Cortex-A5 600 MHz | ARM Cortex-A5 600 MHz |
| L2 Cache | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| Image Sensor Interface | Yes | Yes | Yes | No | No | No |
| Ethernet MACs | 2x Gigabit GMAC | 2x Gigabit GMAC | 2x Gigabit GMAC | 2x Gigabit GMAC | 2x Gigabit GMAC | 1x Gigabit GMAC |
| CAN-FD Controllers | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD | 2x CAN-FD |
| Hardware Crypto (AES/SHA/TRNG) | Yes | Yes | Yes | Yes | Yes | Yes |
| Silicon Revision | B | B | A | B | A | B |
| Packaging Form | Tape & Reel (CUR) | Tray (CU) | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
Key Differentiators
- Integrated Image Sensor Interface (ISI) for vision-based designs (vs ATSAMA5D43B-CUR)
- Dual Gigabit Ethernet vs single GMAC on entry variants (vs ATSAMA5D42B-CUR)
- Latest silicon revision with errata fixes (vs ATSAMA5D44A-CUR)
Design Notes
Estimated: The 361-TFBGA package uses a 0.8 mm ball pitch requiring a 4-layer minimum PCB with 0.4 mm microvia stack-up. Route DDR2/LPDDR traces with 50 ohm controlled impedance and length-match to within 25 mil across byte lanes. Place 100 nF X7R 0402 decoupling capacitors adjacent to each VDD/VDDIO pin, with 10 uF and 47 uF polymer bulk capacitors on core (1.2V) and I/O (3.3V) rails. Exposed die pad requires thermal via array (9 vias minimum) tied to inner ground plane.
Estimated: At 600 MHz core frequency and 1.2 V core supply, the SAMA5D4 typically dissipates 0.8-1.5 W depending on workload. The 361-TFBGA package theta_JA is approximately 25 C/W on a standard JEDEC 4-layer board (per Microchip hardware design guidelines). At 85 C ambient industrial limit, this provides adequate headroom for full-load operation without external heatsink. Use ARM DVFS (dynamic voltage and frequency scaling) to throttle the core during low-load periods and extend MTBF in always-on applications.
Per the Microchip SAMA5D4 datasheet, designers must (1) hold NRST during power-rail ramp until all supplies reach nominal voltage, (2) configure JTAG pins as analog or GPIO during reset to avoid bus contention, (3) use the internal voltage regulator mode (VDDCORE from 1.2 V LDO) only if total power budget permits - external 1.2 V is recommended for industrial designs, and (4) ensure DDR2 reference voltage (VREF) tracks within 2% of VDDIODDR to prevent memory interface errors. Failure to follow these guidelines can prevent Linux kernel boot or cause intermittent watchdog resets.
Estimated: Route RMII/RGMII Ethernet traces with 50 ohm controlled impedance and length-match the clock to within 50 mil of the data pairs. Keep GMAC traces away from switching power supply nodes (DC-DC converters) to minimize crosstalk. The dual USB 2.0 high-speed differential pairs require 90 ohm differential impedance with maximum 4-inch trace length to maintain signal integrity. Use guard traces or ground fill between USB and sensitive analog signals such as the ADC channels.
Compliance Information
RoHS and REACH compliant per Microchip product page declaration. Not AEC-Q100 qualified (industrial -40C to +85C only, not automotive grade). Lead-free and halogen-free per Microchip material declaration.
