Micros

Microchip's 1GHz SAMA7G54 single-core MPU

26th May 2022
Louis Regnier

1GHz SAMA7G54 is a single-core MPU with MIPI CSI-2 Camera Interface and advanced audio features.

The embedded market has a need for higher performing, yet lower power artificial intelligence (AI) solutions that can be deployed at the edge, where power consumption is often at a premium. AI solutions often require advanced imaging and audio capabilities which are typically found only on higher performing multi-core microprocessors that, unfortunately, also consume much more power. To offer developers access to those higher performing peripherals without sacrificing power consumption, Microchip Technology Inc. have announced the SAMA7G54 ARM Cortex A7-based MPU running up to 1GHz.

The SAMA7G54 includes both a MIPICSI-2 camera interface, and traditional parallel camera interface, enabling developers to design low-power stereo vision applications with more accurate depth perception.

Microchip is committed to maintaining the lowest power MPU portfolio in the market. The SAMA7G54 extends this low-power trend into the 1GHz performance class of Linux-capable MPUs by providing flexible low-power modes, as well as voltage and frequency scaling. When coupled with Microchip’s new MCP16502 Power Management IC (PMIC), this MPU enables embedded designers to fine-tune their end application for the overall best power consumption vs. performance, while also optimising for the lowest overall system cost.

The MCP16502 is supported by Microchip’s mainline Linux distribution for the SAMA7G54, allowing for easy entry and exit from available low-power modes, as well as support for dynamic voltage and frequency scaling. 

“The SAMA7G54 provides a low-risk path for designers to develop power and performance optimised AI solutions for deployment at the edge,” said Rod Drake, vice president of Microchip’s 32-bit MPU business unit. “Designers can now create high-performing imaging and audio-centric AI applications without having to use multi-core MPUs with much higher power consumption.”

For audio applications, the device integrates enhanced audio features such as four I2S digital audio ports, an 8-microphone array interface, an S/PDIF transmitter and receiver, as well as a four stereo channel audio sample rate converter. It is also equipped with multiple microphone inputs for improved source localisation to enhance smart speaker or video conferencing system performance. 

The SAMA7G54 also integrates Arm TrustZone technology with secure boot, secure key storage and cryptography with acceleration and more. Customers can work with Microchip’s security experts to evaluate their security needs and implement the level of protection that’s right for their design.

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