ATSAMA5D41B-CUR - ARM Cortex-A5 MPU 600MHz 128KB SRAM | Microchip
MPN: ATSAMA5D41B-CUR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.43 | $12.43 |
| 10 | $11.85 | $118.50 |
| 100 | $10.62 | $1,062.00 |
| 500 | $9.74 | $4,870.00 |
| 1,000 | $8.95 | $8,950.00 |
ATSAMA5D41B-CUR Overview
An ARM Cortex-A5 microprocessor is a 32-bit RISC application processor based on the ARMv7-A architecture with NEON media extensions and a memory management unit. It sits above microcontrollers (MCUs) in the embedded hierarchy: MCU -> microprocessor (MPU) -> SoC -> embedded computing platform, offering Linux- and Android-class software ecosystems that exceed typical MCU capabilities while remaining lower-cost and lower-power than Cortex-A9/A53 designs.
Key features include a 600 MHz Cortex-A5 core with 32 KB I-cache and 32 KB D-cache, a 128 KB SRAM, hardware video decoder (H.264/MPEG-4) and image sensor interface, dual 10/100 Ethernet MAC with GMII/RGMII/MII support, two HS USB 2.0 host/device ports, two SD/SDIO/MMC interfaces, an LCD controller up to WXGA resolution, and a resistive touch screen controller. The advanced interrupt controller (AIC) and secure boot with crypto accelerators support tamper-resistant designs.
The SAMA5D4 family uses a 1.5V core / 3.3V I/O dual-rail architecture. DDR2/LPDDR/LPDDR2 external memory interfaces run at up to 200 MHz. Peripherals share through the AHB/APB matrix; the L2 cache controller, GIC, and bus matrix provide high throughput. JTAG and ETM debug are supported, alongside SWD for cost-sensitive debuggers.
Typical applications include industrial HMI panels, smart energy gateways, building automation controllers, medical patient-monitoring terminals, POS/kiosk systems, and IoT edge nodes running Linux. The integrated LCD controller up to WXGA simplifies display-centric designs.
When designing with this MPU, ensure the LFBGA-289 PCB pad pattern uses NSMD pads with microvia or via-in-pad construction for reliable solder joint reliability, route DDR2 address/clock lines length-matched within 25 mil tolerance, and provide a dedicated low-noise 1.5V LDO for VDDCORE (such as Microchip MCP1727) to keep jitter within jitter tolerance on USB and Ethernet PHYs.
This page synthesizes distributor pricing tiers, LFBGA-289 drop-in variants within the SAMA5D4 family, and practical PCB/thermal guidance not consolidated in any single datasheet document.
Drop-in alternatives for ATSAMA5D41B-CUR β 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 ATSAMA5D41B-CUR (same form factor and footprint) β differing in Package, USB, Ethernet, Core Architecture, Operating Temperature.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ATSAMA5D41B-CU
β Drop-Inβ In Stock
$10.95 / Unit
View Datasheet βATSAMA5D42B-CUR
β Drop-Inβ In Stock
$11.95 / Unit
View Datasheet βATSAMA5D36A-CUR
β Drop-Inβ In Stock
$12.1 / Unit
View Datasheet βATSAMA5D35A-CU
β Drop-Inβ In Stock
$21.4 / Unit
View Datasheet βATSAMA5D34A-CUR
β Drop-Inβ In Stock
$17.6 / Unit
View Datasheet βATSAMA5D27B-CUR
β Drop-Inβ In Stock
$11.85 / Unit
View Datasheet βATSAMA5D41B-CUR Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-A5 (ARMv7-A) |
| Core Count | 1 |
| Operating Frequency | 600 MHz (max) |
| Internal SRAM | 128 KB |
| Internal ROM | 128 KB |
| External Memory Interface | DDR2 / LPDDR / LPDDR2 (16-bit, up to 200 MHz) |
| L1 Instruction Cache | 32 KB |
| L1 Data Cache | 32 KB |
| Supply Voltage - Core | 1.5 V (typ) |
| Supply Voltage - I/O | 3.3 V (typ) |
| LCD Controller | Up to WXGA (2048 x 2048 pixels) |
| Ethernet MAC | 2 x 10/100 Mbps (GMII / RGMII / MII) |
| USB | 2 x USB 2.0 High-Speed (Host or Device) |
| SD/MMC | 2 x SDIO / SDCard / MMC |
| Package | 289-LFBGA, 14 x 14 mm, 0.65 mm pitch |
| Mounting Type | Surface Mount (Tape & Reel) |
| Operating Temperature | -40 C to +85 C (Industrial) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
ATSAMA5D41B-CUR 289-lfbga, 14 x 14 mm, 0.65 mm pitch Pin Configuration Guide
Pin configuration for ATSAMA5D41B-CUR (289-lfbga, 14 x 14 mm, 0.65 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 ATSAMA5D41B-CUR.
Refer to the datasheet for full pin configuration.
Typical Applications
ATSAMA5D41B-CUR is suitable for 6 applications: Industrial HMI Control Panels, Smart Energy Gateways and IoT Edge Nodes, Medical Patient Monitoring Terminals, POS and Self-Service Kiosks, Building Automation Controllers, Video Doorbell and IP Camera Systems.
Industrial HMI Control Panels
The ATSAMA5D41B-CUR drives industrial HMI panels thanks to its 600 MHz Cortex-A5 core, integrated WXGA-capable LCD controller, and resistive touch screen controller. The 128 KB SRAM provides deterministic response for real-time UI rendering while Linux/Qt applications run on the Cortex-A5 with NEON acceleration. Designers pair it with 256 MB DDR2 for graphics buffers and leverage the dual Ethernet MACs for PROFINET/Modbus TCP fieldbus connectivity. The -40C to +85C industrial temperature rating and LFBGA-289 package with 0.65 mm pitch suit rugged factory-floor equipment.
Recommended
Smart Energy Gateways and IoT Edge Nodes
The ATSAMA5D41B-CUR fits smart energy gateways with its dual 10/100 Ethernet MACs, two HS USB 2.0 ports, and secure-boot crypto accelerators that support authentication in AMI / HAN deployments. The Cortex-A5's MMU supports Linux with full TLS stacks, while the 128 KB on-chip SRAM enables fast packet handling. The integrated image sensor interface allows adding a camera for visual metering or occupancy sensing, and the industrial temperature range handles outdoor cabinet environments.
Recommended
Medical Patient Monitoring Terminals
The ATSAMA5D41B-CUR is well-suited to patient monitoring terminals where its 600 MHz Cortex-A5 with NEON accelerates DSP-style vital-sign analysis. The hardware H.264/MPEG-4 decoder drives HD bedside displays showing waveforms and video, and the resistive touch controller enables sealed-front-panel designs. Linux provides IEC 62304 software lifecycle compliance, while the LFBGA-289 industrial-temperature package withstands hospital thermal environments. The dual SD/MMC interfaces store patient logs on redundant removable media.
Recommended
POS and Self-Service Kiosks
The ATSAMA5D41B-CUR powers POS terminals and kiosks by combining the WXGA LCD controller, hardware video decoding for promotional content, and dual USB 2.0 HS ports for peripherals like barcode scanners and receipt printers. The Cortex-A5 runs Android or Linux/Java stacks with full MMU support, while the secure-boot ROM protects payment key material. The LFBGA-289 14x14 mm package fits compact all-in-one enclosures, and the industrial temperature rating supports both indoor retail and semi-outdoor deployments.
Recommended
Building Automation Controllers
The ATSAMA5D41B-CUR runs BACnet/Modbus controllers in building automation systems, leveraging its dual Ethernet MACs for redundant network segmentation and the resistive touch controller for wall-mounted thermostats and access panels. The 600 MHz Cortex-A5 executes scheduling and analytics workloads under Linux, and the integrated crypto accelerators support TLS-secured cloud connections for BACnet/SC and Haystack tagging. Industrial temperature rating ensures reliable operation in unconditioned mechanical rooms.
Recommended
Video Doorbell and IP Camera Systems
The ATSAMA5D41B-CUR drives IP camera and video doorbell designs through its integrated H.264/MPEG-4 hardware decoder and image sensor interface supporting parallel and MIPI CSI-2 sensors. The 600 MHz Cortex-A5 handles streaming and analytics, while the dual Ethernet ports enable PoE-powered network-attached designs. The 128 KB SRAM accelerates motion-detection buffers, and Linux with V4L2/Media subsystems accelerates time-to-market. Industrial temperature rating suits outdoor PoE housings.
Recommended
Recommended Products Summary
Engineering reference data for ATSAMA5D41B-CUR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAMA5D41B-CU | ATSAMA5D42B-CUR | ATSAMA5D36A-CUR | ATSAMA5D35A-CU | ATSAMA5D34A-CUR | ATSAMA5D27B-CUR |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 289-LFBGA (14x14) | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same | 289-LFBGA (14x14) - same |
| Core Architecture | ARM Cortex-A5 | ARM Cortex-A5 | ARM Cortex-A5 | ARM Cortex-A5 | ARM Cortex-A5 | ARM Cortex-A5 | ARM Cortex-A5 |
| Max Core Frequency | 600 MHz | 600 MHz | 600 MHz | 536 MHz | 536 MHz | 536 MHz | 500 MHz |
| Hardware Video Decoder | Yes (H.264/MPEG-4) | Yes (H.264/MPEG-4) | Yes (H.264/MPEG-4) | No | No | No | No |
| Internal SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| Ethernet MACs | 2 x 10/100 | 2 x 10/100 | 2 x 10/100 | 2 x 10/100 | 2 x 10/100 | 1 x 10/100 | 1 x 10/100 |
| L2 Cache Controller | No | No | Yes | No | No | No | No |
| Packaging Format | Tape & Reel | Tray | Tape & Reel | Tape & Reel | Tray | Tape & Reel | Tape & Reel |
Key Differentiators
- Integrated H.264/MPEG-4 hardware video decoder (vs ATSAMA5D36A-CUR)
- 600 MHz core vs 500 MHz in SAMA5D2 family (vs ATSAMA5D27B-CUR)
- Dual Ethernet MAC vs single MAC in SAMA5D2 (vs ATSAMA5D27B-CUR)
Design Notes
Estimated: the 289-LFBGA package at 0.65 mm pitch requires NSMD pads with microvia or via-in-pad construction. Route DDR2 address/clock lines length-matched within +/-25 mil tolerance and keep impedance at 50 ohms single-ended per JEDEC MO-275. Use a 4-layer PCB minimum with a continuous ground plane beneath the BGA to control impedance and reduce EMI on the 600 MHz Cortex-A5 signals.
The ATSAMA5D41B-CUR requires two supplies: VDDCORE at 1.5 V typ (delivering up to ~500 mA at 600 MHz) and VDDIOM/VDDIOP at 3.3 V for I/O. Use a low-noise LDO such as the Microchip MCP1727 for VDDCORE; switching converters risk adding jitter on USB and Ethernet PHYs. Decouple with 100 nF X7R ceramics at every power pin plus 4.7 uF bulk near the BGA.
Estimated: at 600 MHz in industrial temperature grade, package power dissipation is approximately 1.0 W. The 289-LFBGA thermal pad must be soldered to a 6 x 6 mm copper pour on the top layer and stitched with thermal vias (0.3 mm drill, 1 mm pitch) to an internal ground plane. Without this stitching, theta_JA exceeds 40 C/W risking thermal shutdown under Linux stress workloads.
Avoid routing the DDR2 data strobes (DQS0/DQS1) over plane splits - keep a solid reference plane on layer 2 across the entire BGA footprint. Do not use lead-free SAC305 solder with the BGA unless the PCB is qualified to 260 C peak reflow per JEDEC J-STD-020 MSL-3. Finally, leave JTAG/ETM test access - boundary-scan fixtures simplify post-assembly bring-up on a 0.65 mm pitch package.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified - automotive applications require a different grade.
