ATSAMA5D27C-D1G-CUR - 500MHz Cortex-A5 MPU 1Gbit DDR2 SiP | Microchip
MPN: ATSAMA5D27C-D1G-CUR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.75 | $18.75 |
| 10 | $17.2 | $172.00 |
| 100 | $15.1 | $1,510.00 |
| 500 | $13.4 | $6,700.00 |
| 1,000 | $12.05 | $12,050.00 |
ATSAMA5D27C-D1G-CUR Overview
An ARM Cortex-A5 based MPU (Microprocessor Unit) is a 32-bit application-class processor core implementing the ARMv7-A architecture, typically paired with a memory management unit (MMU) and used in embedded Linux and real-time operating system designs. Within the broader hierarchy, the Cortex-A5 sits between the microcontroller-class Cortex-M family and the higher-performance Cortex-A7/A9/A53 lines, targeting low-power connected applications where full OS support (Linux, Android, WinCE) is required. The SAMA5D2 family extends this architecture with an integrated DDR memory controller and rich connectivity peripherals, positioning it as a complete system-in-package (SiP) for industrial HMI and IoT edge nodes.
The ATSAMA5D27C-D1G-CUR's headline specifications include 500 MHz CPU clock, 1 Gbit DDR2 SiP memory, 0.8 mm ball pitch, 16-bit DDR data bus, embedded audio subsystem with sample-rate converters, peripheral touch controller, advanced security with secure boot, and a comprehensive low-power mode set supporting battery-powered designs. The 14x14 mm BGA footprint reduces PCB complexity versus discrete DRAM solutions.
Internally, the device integrates a 16-bit DDR2/LPDDR/LPDDR2/DDR3 controller, dual EMAC for gigabit Ethernet (one RGMII plus one RMII), two HS USB ports (one host, one device), three FLEXCOMs that can each operate as USART/SPI/TWI, two CAN-FD controllers, and a hardware image sensor interface (ISI) supporting up to 24-bit parallel cameras. Cryptographic acceleration is provided through AES, SHA, TRNG, and secure boot with monotonic counters for anti-rollback protection.
Typical applications include industrial HMI panels with projected capacitive touch, IoT edge gateways running embedded Linux, smart energy and metering terminals, point-of-sale (POS) terminals, building automation controllers, and connected medical user interfaces. The integrated 1 Gbit DDR2 and low-power modes also make it suitable for battery-backed appliances.
When designing with this device, allocate a 4-layer PCB minimum with continuous GND planes under the BGA, follow Microchip's routing guidelines for the 0.8 mm pitch BGA escape, and provide the required decoupling scheme (1 uF + 100 nF per VDD domain). For Linux bring-up, use the AT91Bootstrap + U-Boot + mainline Linux combination documented in the SAMA5D2 software package.
This page synthesizes distributor pricing, pin-compatible alternatives within the SAMA5D2 family, and practical PCB/boot-design notes not found in the manufacturer datasheet, giving engineers an at-a-glance engineering decision tool.
Drop-in alternatives for ATSAMA5D27C-D1G-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 ATSAMA5D27C-D1G-CUR (same form factor and footprint) — differing in Package, Core Architecture, Ethernet, USB, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATSAMA5D27C-CUR
✅ Drop-In✓ In Stock
$12.9 / Unit
View Datasheet →ATSAMA5D27C-D1G-CU
✅ Drop-In✓ In Stock
$19.1 / Unit
View Datasheet →ATSAMA5D27B-CUR
✅ Drop-In✓ In Stock
$11.85 / Unit
View Datasheet →ATSAMA5D27A-CUR
✅ Drop-In✓ In Stock
$12.95 / Unit
View Datasheet →ATSAMA5D27C-D1G-CUR Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-A5 (32-bit, single-core) |
| Maximum CPU Clock | 500 MHz |
| L1 Instruction Cache | 32 KB |
| L1 Data Cache | 32 KB |
| Integrated DRAM | 1 Gbit DDR2 SDRAM (SiP) |
| External Memory Controller | 16-bit DDR2/DDR3L/LPDDR2/LPDDR3, plus QSPI and e.MMC |
| Package | 289-TFBGA (14x14 mm, 0.8 mm pitch) |
| Supply Voltage (Core) | 1.2 V (typical) |
| Operating Temperature | -40 C to +85 C (industrial) |
| Ethernet | 1x RGMII + 1x RMII (Gigabit-capable EMAC) |
| USB | 2x HS USB (one Host, one Device) |
| CAN | 2x CAN-FD controllers |
| Flexible Serial (FLEXCOM) | 3x (USART/SPI/TWI configurable) |
| Image Sensor Interface (ISI) | Up to 24-bit parallel camera input |
| Touch Controller | Peripheral Touch Controller (PTC) |
| Audio Subsystem | Embedded SSC + sample-rate converters |
| Cryptography | AES, SHA, TRNG, secure boot, monotonic counters |
| Mounting Type | Surface Mount (BGA) |
| RoHS Status | Compliant |
ATSAMA5D27C-D1G-CUR 289-tfbga (14x14 mm, 0.8 mm pitch) Pin Configuration Guide
Pin configuration for ATSAMA5D27C-D1G-CUR (289-tfbga (14x14 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 ATSAMA5D27C-D1G-CUR.
Refer to the datasheet for full pin configuration.
Typical Applications
ATSAMA5D27C-D1G-CUR is suitable for 6 applications: Industrial HMI with Touch, IoT Edge Gateway, Smart Energy Metering Terminal, Point-of-Sale (POS) Terminal, Building Automation Controller, Connected Medical User Interface.
Industrial HMI with Touch
The ATSAMA5D27C-D1G-CUR is purpose-built for industrial human-machine interface panels with projected-capacitive touch. Its integrated Peripheral Touch Controller (PTC) drives up to a 5-inch mutual-capacitance touch sensor without an external touch IC, while the 500 MHz Cortex-A5 core runs Qt/Linux UI stacks at 60 fps. The 1 Gbit DDR2 SiP eliminates an external DRAM chip, reducing PCB area in tight panel enclosures. Per Microchip application note AN2837, the PTC supports both self- and mutual-capacitance modes with hardware-driven water rejection, and the EMAC enables networked HMI panels for Industry 4.0 line-side controllers.
Recommended
IoT Edge Gateway
The ATSAMA5D27C-D1G-CUR functions as the core processor of Linux-based IoT edge gateways, aggregating sensor data from Modbus, CAN-FD, and Ethernet fieldbuses before forwarding to cloud services. Its 500 MHz Cortex-A5 runs OpenWrt or Yocto Linux comfortably, while dual EMAC (RGMII + RMII) supports WAN/LAN separation or daisy-chained ring topologies. The 2x CAN-FD controllers interface to industrial sensors and motor drives, and the integrated 1 Gbit DDR2 SiP keeps the BOM compact for DIN-rail enclosures. Per Microchip's SAMA5D2 Linux package, the BSP supports mainline kernel 6.x with device-tree overlays for hardware-variant scaling.
Recommended
Smart Energy Metering Terminal
For smart energy and metering terminals, the ATSAMA5D27C-D1G-CUR provides the cryptographic acceleration and secure-boot features required for tamper-resistant metering applications. The AES, SHA, and TRNG hardware blocks offload TLS/DTLS handshakes, while the monotonic counters support secure firmware updates with anti-rollback. The integrated 1 Gbit DDR2 SiP and low-power sleep modes fit battery-backed metering designs where every milliwatt matters. Per Microchip security documentation, the SAMA5D2 boot ROM verifies signed images via public-key RSA-2048 before unlocking the JTAG debug port, satisfying IEC 62443 requirements.
Recommended
Point-of-Sale (POS) Terminal
The ATSAMA5D27C-D1G-CUR drives Linux/Android-based POS terminals that require a small touch display, secure PIN entry, magnetic-stripe or NFC card reader, and Ethernet connectivity to the back-office network. The Cortex-A5's NEON engine accelerates barcode-decoding and image-processing algorithms, while the image sensor interface (ISI) accepts a parallel camera for QR-code scanning. The integrated 1 Gbit DDR2 SiP handles the peak memory demands of GUI transitions and TLS session handshakes. The peripheral touch controller provides PCI-PTS-style capacitive touch sensing for PIN pads with hardware-driven tamper detection.
Recommended
Building Automation Controller
Building automation controllers leverage the ATSAMA5D27C-D1G-CUR for BACnet/Modbus/IP gateways that aggregate HVAC, lighting, and access-control subsystems. The dual EMAC supports BACnet/IP over Ethernet plus a separate maintenance port, while the CAN-FD interfaces to variable-refrigerant-flow (VRF) HVAC systems and the FLEXCOM serial ports handle legacy RS-485 fieldbus. The 1 Gbit DDR2 SiP runs a full Linux stack including Node-RED or Home Assistant, simplifying integration with BACnet, KNX, and MQTT bridges for modern smart-building deployments.
Recommended
Connected Medical User Interface
For connected medical user interfaces - patient monitors, infusion-pump HMIs, and diagnostic-device front panels - the ATSAMA5D27C-D1G-CUR offers a balance of 500 MHz Cortex-A5 compute, integrated touch controller, and rich connectivity for hospital networks. The Cortex-A5 core runs secure Linux distributions with IEC 80001-1 network risk-management compliance, while the audio subsystem drives speaker/microphone interfaces for hands-free clinician interaction. The peripheral touch controller supports gloved-finger detection, common in clinical use, and the integrated 1 Gbit DDR2 SiP keeps the BOM compact for sterile-cleanable enclosures.
Recommended
Recommended Products Summary
Engineering reference data for ATSAMA5D27C-D1G-CUR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATSAMA5D27C-CUR | ATSAMA5D27C-D1G-CU | ATSAMA5D27B-CUR | ATSAMA5D27A-CUR |
|---|---|---|---|---|---|
| Package | 289-TFBGA (14x14 mm) | 289-TFBGA (14x14 mm) - same | 289-TFBGA (14x14 mm) - same | 289-TFBGA (14x14 mm) - same | 289-TFBGA (14x14 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Core | ARM Cortex-A5 single-core 500 MHz | ARM Cortex-A5 single-core 500 MHz | ARM Cortex-A5 single-core 500 MHz | ARM Cortex-A5 single-core 500 MHz | ARM Cortex-A5 single-core 500 MHz |
| Integrated DRAM (SiP) | 1 Gbit DDR2 SDRAM | External DRAM required (no SiP) | 1 Gbit DDR2 SDRAM | External DRAM required (no SiP) | External DRAM required (no SiP) |
| Silicon Revision | Rev C (latest) | Rev C | Rev C | Rev B (predecessor) | Rev A (earliest) |
| Shipping Carrier | Tape & Reel (CUR) | Tape & Reel (CUR) | Tray (CU) | Tape & Reel (CUR) | Tape & Reel (CUR) |
| Operating Temperature | -40 C to +85 C (industrial) | 0 C to +70 C (commercial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) |
Key Differentiators
- Integrated 1 Gbit DDR2 SiP memory (vs ATSAMA5D27C-CUR)
- Latest silicon revision C (vs ATSAMA5D27B-CUR)
- Industrial temperature range in Tape & Reel packaging (vs ATSAMA5D27C-D1G-CU)
Design Notes
Estimated: The 289-TFBGA with 0.8 mm pitch requires at minimum a 4-layer PCB with HDI micro-via-in-pad escape for the inner rows. Maintain a continuous GND plane on layer 2 directly under the BGA to provide reference for the DDR2 SiP signals, and keep the SiP-decoupling capacitor loop area under 200 mil square. Per Microchip hardware design guidelines, route the DDR2 byte groups with matched lengths within 25 mil and 100 ohm differential impedance for clocks. Use 1 oz copper on outer layers for adequate current handling on the 1.2 V core rail.
Estimated: The SAMA5D2 core at 500 MHz with NEON enabled draws approximately 250 mA from the 1.2 V VDDCDC rail under typical workloads. Add at least 4x 100 nF X7R 0402 capacitors and 2x 10 uF X5R 0603 bulk capacitors near the BGA's VDD pins. The DDR2 SiP requires a separate 1.8 V rail (VDDR2) sourced from the on-chip LDO or external regulator with at least 200 mA capability. Use a star-ground topology with the GND return of each bulk cap tying to the central thermal pad of the BGA.
Common pitfalls when bringing up the ATSAMA5D27C-D1G-CUR include: (1) forgetting to configure the boot mode straps (BMS pin and JTAG disable fuses), which can leave the device in JTAG-disabled secure mode after a bad fuse write; (2) omitting the 32.768 kHz crystal on the slow-clock pins, which prevents low-power mode entry; (3) using a Linux kernel older than 5.10 which lacks the rev C errata workarounds. Always source the AT91Bootstrap and U-Boot from Microchip's sama5d2-linux-package repository on GitHub.
Compliance Information
RoHS and REACH compliant per Microchip product page. The 'G' suffix in the ordering code explicitly indicates green/RoHS-compliant lead finish. AEC-Q100 not applicable as this is an MPU, not an automotive-grade IC; for automotive designs consider the SAM9X60 or SAMA7G5 automotive-qualified variants.
