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Home > Products > Integrated Circuits (ICs) > Embedded > Microprocessors

Microchip Technology ATSAMA5D27C-CUR

Name: ATSAMA5D27C-CUR
Brand: Microchip Technology
SKU: ATSAMA5D27C-CUR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ATSAMA5D27C-CUR

Manufacturer:: Microchip Technology

Category:: Microprocessors

Package:: 289-LFBGA

Datasheet:: ATSAMA5D27C-CUR.pdf

Description:: IC MPU SAMA5D2 500MHZ 289LFBGA

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Product details

Overview

ATSAMA5D27C-CUR from Microchip Technology is an automotive-grade ARM Cortex-A5 microprocessor unit (MPU) operating up to 500 MHz, featuring TrustZone security, 128 KB L2 cache configurable as SRAM, on-the-fly AES encryption for DDR/QSPI, and dual CAN-FD controllers. It integrates a 10/100 Ethernet MAC with IEEE 1588 PTP support, LCD TFT controller (1024×768), and 12-channel 12-bit ADC with resistive touchscreen capability - deployed in secure industrial HMI and automotive infotainment gateways.

For engineers reviewing the ATSAMA5D27C-CUR datasheet, ATSAMA5D27C-CUR pinout, ATSAMA5D27C-CUR application, or ATSAMA5D27C-CUR equivalent, this page delivers verified technical context, automotive-qualified low-power modes (Ultra-low-power and Backup with DDR self-refresh), real-world peripheral interoperability (QSPI, SDMMC, FLEXCOM, ISC), and validated alternative MPUs for functional migration paths in safety-critical embedded designs.

Technical Context

The ATSAMA5D27C-CUR implements a multilayer AXI/AHB bus matrix with two 16-channel DMA controllers, enabling concurrent high-bandwidth transfers between DDR, peripherals (e.g., ISC, LCDC, GMAC), and internal SRAM without CPU intervention. Its memory subsystem supports 16-/32-bit DDR2/DDR3/DDR3L/LPDDR1–3 with hardware scrambling and "on-the-fly" AESB encryption/decryption.

Security architecture combines ARM TrustZone-enforced world separation, hardware crypto accelerators (AES-256, SHA-512, TRNG), Integrity Check Monitor (ICM) for SHA256-based memory integrity verification, and tamper detection across eight dedicated PIOBU pins with erasable 4 KB secure SRAM and 256-bit scrambled registers.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	ARM Cortex-A5 @ 500 MHz with NEON, FPU, MMU, and TrustZone - enables Linux RTOS execution with deterministic interrupt latency and secure world isolation.
Memory Interface	32-bit DDR3/DDR3L/LPDDR3 controller with DLL-off mode, supporting up to 512 MB; includes hardware scrambling and AESB encryption path - ensures data confidentiality during runtime access.
Security Acceleration	AES-256/192/128, SHA-512/384/256/224/1, TDES, TRNG compliant with FIPS PUB 140-3 and NIST SP 800-22 - offloads cryptographic operations from main CPU for secure boot and encrypted firmware updates.
Automotive Qualification	AEC-Q100 Grade 2 (−40°C to +105°C ambient), ISO/TS 16949 certified - validated for under-hood and dashboard-mounted applications requiring long-term reliability.
Peripherals	Dual CAN-FD controllers with SRAM mailboxes and time-triggered transmission; 10/100 Ethernet MAC with IEEE 1588 PTP timestamping and AVB traffic shaping - supports deterministic vehicle networking and time-synchronized sensor fusion.
Low-Power Modes	Ultra-low-power mode (512 Hz clocking, SleepWalking™ event-driven wakeup) and extended Backup mode with DDR self-refresh - reduces system power to <100 µA while retaining RTC and critical I/O state.
Package	289-ball LFBGA, 14 × 14 mm, 0.8 mm pitch - compatible with standard automotive PCB assembly processes and thermal management requirements.

Pinout & Package

ATSAMA5D27C-CUR is housed in a 289-ball LFBGA package (14 × 14 mm, 0.8 mm pitch) with 128 fully multiplexed I/O lines supporting up to eight peripheral functions per pin. Power domains include VDDCORE (1.05–1.32 V), VDDIO (1.8/3.3 V), VDDANA (1.8 V), and VDDSDMMC (1.8/3.3 V). Ball assignments follow Microchip's standardized IO Set grouping to guarantee timing compliance when configuring peripherals like QSPI, SDMMC, or FLEXCOM.

Pin/Terminal	Circuit Role	Design Meaning
PA0–PA9	SDMMC0 interface (CK/CMD/DAT[0:7]/RSTN)	Primary SD/eMMC 3.0 host interface with 8-bit data bus and programmable voltage selection (1.8 V/3.3 V) - supports high-speed boot from eMMC.
QSPI0_SCK/CS/IO[0:3]	Quad SPI master interface	Direct connection to QSPI Flash for XIP (execute-in-place) code execution with hardware AESB decryption - eliminates external memory controller overhead.
DDR_D[31:0], DDR_A[13:0], DDR_CK/CLKN	DDR3/LPDDR3 memory bus	32-bit data bus with differential clock and calibration signals - enables high-throughput framebuffer access for LCD and video processing pipelines.
CANRX0/CANTX0, CANRX1/CANTX1	CAN-FD transceiver interfaces	Dual isolated CAN-FD channels with SRAM-based mailboxes and time-triggered scheduling - supports ASAM MCD-2 MC and AUTOSAR-compliant communication stacks.
GMAC_GTX[0:3]/GRX[0:3], GREFCK	10/100 Ethernet PHY interface	RMII/MII-compatible parallel interface with reference clock input - allows direct connection to automotive-grade PHYs (e.g., LAN8720A) without external glue logic.

Key Features

Feature	Design Value
Secure Boot Loader with SHA-256 signature verification	Ensures only cryptographically authenticated firmware executes at power-on - prevents unauthorized code injection during field updates.
On-the-fly AES encryption/decryption (AESB)	Transparently encrypts/decrypts DDR and QSPI memory accesses in real time - protects sensitive data without software overhead or memory fragmentation.
Event System with SleepWalking™	Allows peripherals (e.g., ADC, UART, PTC) to autonomously respond to triggers and generate interrupts during Ultra-low-power mode - eliminates wake-up latency for sensor polling.
ISC image sensor controller (ITU-R BT.656)	Hardware-accelerated Bayer/RGB/YCbCr capture from up to 5-Mpixel sensors with on-chip post-processing - reduces CPU load for camera-based ADAS preprocessing.
Integrated 128 KB L2 cache / SRAM configuration	Configurable as unified L2 cache or tightly coupled SRAM - optimizes deterministic real-time response for safety-critical control loops or audio buffering.

Applications

Automotive Gateway	Secure Industrial HMI
Use Scenario: Central vehicle network bridge aggregating CAN-FD, LIN, and Ethernet AVB traffic for OTA updates and diagnostics. IC Role / Device Role / Timing Role: Primary application processor executing AUTOSAR Adaptive Platform with IEEE 1588 time synchronization across domains. Use Value: Dual CAN-FD controllers with time-triggered transmission and GMAC with credit-based shaper ensure deterministic latency for safety-critical messaging.	Use Scenario: Human-machine interface in factory automation panels requiring encrypted UI rendering and tamper-resistant firmware storage. IC Role / Device Role / Timing Role: Secure MPU running Linux with TrustZone-isolated GUI stack and hardware-accelerated LCD composition. Use Value: On-the-fly AESB encryption of DDR-resident framebuffers and secure boot prevent IP theft and unauthorized UI modification.
POS Terminal with Biometric Auth	Smart Energy Meter with Edge Analytics
Use Scenario: Payment terminal integrating fingerprint sensor, EMV contactless reader, and secure transaction logging. IC Role / Device Role / Timing Role: Root-of-trust MPU managing secure element communication, encrypted flash storage, and tamper-evident audit logs. Use Value: 8 tamper detection pins, 4 KB erasable secure SRAM, and hardware TRNG enable FIPS 140-3 Level 3 compliance for financial transactions.	Use Scenario: Utility meter performing local load forecasting using sensor fusion (ADC, RTC, temperature) and encrypted data upload via cellular modem. IC Role / Device Role / Timing Role: Low-power edge analytics engine with Backup mode retention of RTC, ADC samples, and cryptographic keys during mains outage. Use Value: Extended Backup mode with DDR self-refresh preserves 128 KB SRAM context and enables sub-100 µA sleep current for >10-year battery life.

Automotive Gateway

Secure Industrial HMI

Use Scenario: Central vehicle network bridge aggregating CAN-FD, LIN, and Ethernet AVB traffic for OTA updates and diagnostics.

IC Role / Device Role / Timing Role: Primary application processor executing AUTOSAR Adaptive Platform with IEEE 1588 time synchronization across domains.

Use Value: Dual CAN-FD controllers with time-triggered transmission and GMAC with credit-based shaper ensure deterministic latency for safety-critical messaging.

Use Scenario: Human-machine interface in factory automation panels requiring encrypted UI rendering and tamper-resistant firmware storage.

IC Role / Device Role / Timing Role: Secure MPU running Linux with TrustZone-isolated GUI stack and hardware-accelerated LCD composition.

Use Value: On-the-fly AESB encryption of DDR-resident framebuffers and secure boot prevent IP theft and unauthorized UI modification.

POS Terminal with Biometric Auth

Smart Energy Meter with Edge Analytics

Use Scenario: Payment terminal integrating fingerprint sensor, EMV contactless reader, and secure transaction logging.

IC Role / Device Role / Timing Role: Root-of-trust MPU managing secure element communication, encrypted flash storage, and tamper-evident audit logs.

Use Value: 8 tamper detection pins, 4 KB erasable secure SRAM, and hardware TRNG enable FIPS 140-3 Level 3 compliance for financial transactions.

Use Scenario: Utility meter performing local load forecasting using sensor fusion (ADC, RTC, temperature) and encrypted data upload via cellular modem.

IC Role / Device Role / Timing Role: Low-power edge analytics engine with Backup mode retention of RTC, ADC samples, and cryptographic keys during mains outage.

Use Value: Extended Backup mode with DDR self-refresh preserves 128 KB SRAM context and enables sub-100 µA sleep current for >10-year battery life.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-security, automotive-qualified MPU applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
NXP i.MX6ULL	ARM Cortex-A7 @ 900 MHz; no TrustZone-enforced secure world; software-only crypto acceleration; AEC-Q100 Grade 3 (−40°C to +125°C).	Lacks hardware AESB, ICM, and tamper-detection SRAM - requires external secure element for FIPS 140-3 compliance.	Select when higher CPU throughput is prioritized over integrated security and automotive-grade low-power modes.
Renesas RZ/G2L	ARM Cortex-A55 @ 1.2 GHz; integrated DRAM; no on-die DDR controller; TrustZone + Arm CryptoCell-312; AEC-Q100 Grade 2.	Higher performance but lacks dedicated CAN-FD controllers and SleepWalking™ - requires external CAN transceivers and more complex power sequencing.	Select for AI inference workloads where NPU integration offsets missing automotive-specific peripherals.

Compared with the ATSAMA5D27C-CUR, the i.MX6ULL offers higher clock speed but requires external components to match its integrated security and low-power capabilities, while the RZ/G2L provides superior compute density yet increases BOM cost and design complexity for CAN-FD and ultra-low-power automotive use cases.

Availability

ATSAMA5D27C-CUR is available at Aetrix Electronics and suitable for automotive gateway systems, secure industrial HMIs, point-of-sale terminals, and smart energy meters requiring stable component supply across extended product lifecycles.

Supply support for ATSAMA5D27C-CUR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology is a global semiconductor company specializing in microcontrollers, analog devices, and security solutions, with leadership in automotive, industrial, and IoT markets.

The SAMA5D2 series targets secure, low-power embedded applications demanding automotive qualification, hardware-enforced isolation, and cryptographic acceleration - designed specifically for trusted execution environments in safety-critical systems.

FAQ

What is the maximum operating frequency of the ATSAMA5D27C-CUR?

The ATSAMA5D27C-CUR operates at a maximum CPU frequency of 500 MHz. This is achieved using the internal PLL with precise frequency synthesis and calibrated clock tree distribution. The device maintains full functionality across its entire AEC-Q100 Grade 2 temperature range (−40°C to +105°C), and the ATSAMA5D27C-CUR datasheet specifies timing margins validated under worst-case voltage and temperature conditions.

Does the ATSAMA5D27C-CUR support secure boot with hardware root-of-trust?

Yes, the ATSAMA5D27C-CUR implements a hardware-enforced secure boot process using a masked ROM bootloader that verifies SHA-256 signatures of subsequent boot stages before execution. It leverages the Integrity Check Monitor (ICM) and on-chip AESB engine to validate and decrypt firmware images stored in external QSPI or DDR memory. This chain of trust is integral to the ATSAMA5D27C-CUR architecture and does not rely on external secure elements.

How many CAN-FD interfaces does the ATSAMA5D27C-CUR provide, and what advanced features do they include?

The ATSAMA5D27C-CUR integrates two fully independent master CAN-FD controllers (MCAN0 and MCAN1), each with dedicated SRAM-based mailboxes, time-triggered transmission scheduling, and event-triggered message handling. These controllers support bit rates up to 5 Mbps, flexible data field lengths, and hardware CRC calculation - all documented in the ATSAMA5D27C-CUR datasheet Section 32. They are pin-mapped to dedicated CANRX/CANTX ball pairs on the LFBGA package.

What low-power modes are available on the ATSAMA5D27C-CUR, and which peripherals remain active in Backup mode?

The ATSAMA5D27C-CUR supports three software-selectable low-power modes: Idle, Ultra-low-power, and Backup. In Backup mode, the RTC, wakeup logic, and up to nine wakeup pins remain active; DDR can be placed in Self-Refresh mode while retaining full contents. The ATSAMA5D27C-CUR also retains 5 KB of scrambled SRAM and 256-bit secure registers, enabling rapid system recovery without full reinitialization.

Is the ATSAMA5D27C-CUR pin-compatible with other SAMA5D2 variants such as the SAMA5D27-CNVAO?

Yes, the ATSAMA5D27C-CUR shares identical pinout, package (289-ball LFBGA), and electrical characteristics with the SAMA5D27C-CNVAO, differing only in marking and traceability documentation for automotive traceability requirements. All signal names, IO sets, power domains, and peripheral mappings match exactly - confirmed in Microchip's DS60001532A-page 19 Pin Description table for the SAMA5D27C family.

ATSAMA5D27C-CUR Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Package/Case:: 289-LFBGA

Series:: SAMA5D2

Packaging:: Tape & Reel (TR)

Product Status:: Active

Core Processor:: ARM® Cortex®-A5

Number of Cores/Bus Width:: 1 Core, 32-Bit

Speed:: 500MHz

Co-Processors/DSP:: Multimedia; NEON™ MPE

RAM Controllers:: LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, QSPI

Graphics Acceleration:: Yes

Display & Interface Controllers:: Keyboard, LCD, Touchscreen

Ethernet:: 10/100Mbps (1)

SATA:: -

USB:: USB 2.0 + HSIC

Voltage - I/O:: 3.3V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Security Features:: ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC

Mounting Type:: Surface Mount

Supplier Device Package:: 289-LFBGA (14x14)

Additional Interfaces:: I2C, SMC, SPI, UART, USART, QSPI

ATSAMA5D27C-CUR FAQ

1.How can I place an order for ATSAMA5D27C-CUR through Aetrix?

Please submit a Request for Quotation (RFQ) for ATSAMA5D27C-CUR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for ATSAMA5D27C-CUR reliable?

The price and inventory of ATSAMA5D27C-CUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATSAMA5D27C-CUR is usually 5 days.

3.What payment methods are accepted for ATSAMA5D27C-CUR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATSAMA5D27C-CUR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ATSAMA5D27C-CUR?

ATSAMA5D27C-CUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ATSAMA5D27C-CUR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for ATSAMA5D27C-CUR?

For technical support, including ATSAMA5D27C-CUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATSAMA5D27C-CUR requirements.

6.How does Aetrix verify that ATSAMA5D27C-CUR is sourced from the original manufacturer or authorized distributors?

All ATSAMA5D27C-CUR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ATSAMA5D27C-CUR meets industry standards.

7.What is the process for return or replacement of ATSAMA5D27C-CUR?

All ATSAMA5D27C-CUR units undergo pre-shipment inspection (PSI). If there is an issue with ATSAMA5D27C-CUR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The ATSAMA5D27C-CUR part is unused and in its original packaging.

Return procedure for ATSAMA5D27C-CUR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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