Microchip Technology (Nasdaq: MCHP) has responded to the growing demand for larger and faster SRAM among customers by expanding its Serial SRAM product line. Now offering capacities of up to 4 Mb, and boosted Serial Peripheral Interface/Serial Quad I/O™ Interface (SPI/SQI™) speed of up to 143 MHz, these enhancements cater to diverse application needs.
The new 2 Mb and 4 Mb devices not only offer increased capacity but also present a cost-effective alternative to traditional parallel SRAM solutions. They feature optional battery backup switchover circuitry, ensuring data retention during power loss.
In contrast to bulkier parallel RAM, which demands a considerable number of microcontroller (MCU) I/Os for interfacing, Microchip’s serial SRAM devices sport an economical 8-pin package. Leveraging a high-speed SPI/SQI communication bus, they require only 4–6 MCU I/O pins for seamless integration, thereby reducing the need for pricier, high-pin-count MCUs and minimizing overall board footprint.
To bridge the speed gap between serial and parallel memory, the 2 Mb and 4 Mb serial SRAM devices offer an impressive bus speed capability of 143 MHz with optional quad SPI, significantly enhancing performance.
“Serial SRAM is a popular solution for engineers who need more RAM than what is available on board their MCU but are looking to reduce cost and overall board size,” said Jeff Leasure, director of Microchip’s memory products business unit. “Microchip’s 2 Mb and 4 Mb serial SRAM devices are intended to replace expensive parallel SRAM with an easy and cost-effective alternative.”
These compact, low-power, high-performance serial SRAM devices boast unlimited endurance and zero write times, making them ideal for applications requiring continuous data transfer, buffering, data logging, metering, and other data-intensive operations. Ranging from 64 Kbit to 4 Mb in density, they support SPI, SDI, and SQI bus modes. For a comprehensive overview of Microchip’s memory devices, visit their Memory Products page.
Pricing and availability
The 2 Mb and 4 Mb serial SRAM devices are available starting at $1.60 each in 10,000-unit quantities. For more details and to make a purchase, customers can reach out to a Microchip sales representative, or authorized worldwide distributor, or visit Microchip’s Purchasing and Client Services website at www.microchipdirect.com.
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