ATSAMA5D21B-CU

The ATSAMA5D21B-CU is an ARM® Cortex®-A5 microprocessor single-core MPU running at 500 MHz, offered in a 196-TFBGA (11×11) surface-mount package. Designed for embedded applications, this industrial-grade device combines compute performance with integrated interfaces and security features for robust system implementation.

Targeted at embedded and industrial markets, the part provides a balance of multimedia capabilities, memory controller flexibility and on-chip peripherals that simplify development of secure, interface-rich products.

Key Features

• Core — ARM® Cortex®-A5 single 32-bit core running at 500 MHz for general-purpose embedded compute.
• Co-Processors / Multimedia — Built-in multimedia and NEON™ MPE support to accelerate media and signal processing tasks.
• Memory Controllers — Support for LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L and QSPI memory interfaces for flexible system memory configurations.
• Display and HMI — Integrated controllers for keyboard, LCD and touchscreen interfaces to enable human-machine interfaces and display-driven applications.
• Connectivity — Single 10/100 Mbps Ethernet interface plus USB 2.0 with HSIC for wired network and host/device connectivity.
• Additional Interfaces — I²C available for sensor and peripheral communications.
• Security — Comprehensive security features including ARM TrustZone (TZ), boot security, cryptography, RTIC, secure fusebox, secure JTAG, secure memory and secure RTC to protect firmware and data.
• Power and I/O — 3.3 V I/O voltage support for common embedded peripherals and signaling.
• Package and Mounting — 196-TFBGA (11×11) CSBGA supplier package, surface-mount mounting for compact board integration.
• Operating Range — Industrial temperature grade with operating range from -40 °C to 85 °C.

Typical Applications

• Industrial Control and Automation — CPU performance, industrial temperature rating and robust security features make it suitable for control nodes and secure embedded controllers.
• Human-Machine Interfaces (HMI) — Integrated LCD, touchscreen and keyboard controllers with graphics acceleration support interactive displays and operator panels.
• Networked Embedded Devices — On-chip 10/100 Mbps Ethernet and USB 2.0 + HSIC provide connectivity for networked sensors, gateways and appliance controllers.
• Secure IoT and Edge Nodes — Hardware security features (TrustZone, secure boot, cryptography) enable protected device identity and secure firmware management.

Unique Advantages

• Integrated Security Suite: Multiple hardware security mechanisms (TrustZone, secure boot, cryptography, secure JTAG, secure memory, secure RTC) reduce external security subsystem requirements.
• Flexible Memory Support: Wide range of supported memory types (LPDDR1/2/3, DDR2/3/3L, QSPI) lets designers choose cost or performance-optimized memory configurations.
• HMI-Ready Peripherals: On-chip controllers for LCD, touchscreen and keyboard plus graphics acceleration simplify implementation of user interfaces.
• Industrial Temperature Grade: Operates from -40 °C to 85 °C, supporting deployment in industrial environments where extended temperature range is required.
• Compact Surface-Mount Package: 196-TFBGA (11×11) CSBGA footprint enables dense board designs while maintaining I/O flexibility.
• Manufacturer Support: Part of the SAMA5D2 series from Microchip Technology, providing a consistent device family for embedded designs.

Why Choose ATSAMA5D21B-CU?

The ATSAMA5D21B-CU positions itself as a versatile, industrial-grade MPU for embedded systems that require a balance of compute performance, security and interface integration. Its ARM® Cortex®-A5 core at 500 MHz, extensive memory controller support and on-chip peripherals make it suitable for designs that combine HMI, connectivity and secure operation.

Engineers designing industrial controllers, secure edge devices or display-driven products will find the ATSAMA5D21B-CU useful for reducing external component count, meeting extended temperature requirements and leveraging Microchip Technology’s SAMA5D2 series footprint for consistent platform design.

Request a quote or submit an inquiry to get pricing and availability for the ATSAMA5D21B-CU and support information for integrating this MPU into your next embedded design.