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Microchip Know-how has expanded its Serial SRAM product line to incorporate bigger densities of as much as 4 Mb and elevated Serial Peripheral Interface/Serial Quad I/O Interface (SPI/SQI) pace to 143 MHz. The two Mb and 4 Mb gadgets are designed to supply a lower-cost various to conventional parallel SRAM merchandise and embody elective battery backup switchover circuitry within the SRAM reminiscence to retain information on energy loss.
In contrast to parallel RAM, which requires massive packages and not less than 26–35 microcontroller (MCU) I/Os to interface, the Microchip serial SRAM gadgets are available in a lower-cost, 8-pin package deal and make the most of a high-speed SPI/SQI communication bus that solely requires 4−6 MCU I/O pins for simple integration. This reduces the necessity for a dearer, high-pin-count MCU and can assist reduce the general board footprint.
Addressing the most typical downside to serial SRAM—that parallel is quicker than serial reminiscence—the two Mb and 4 Mb serial SRAM gadgets have elevated the bus pace functionality to 143 MHz with elective quad SPI (4 bits per clock cycle), which enormously minimizes the pace hole between options.
The small-form-factor, low-power, high-performance serial SRAM gadgets have limitless endurance and 0 write occasions, making them glorious choices for purposes involving steady information switch, buffering, information logging, metering, and different math- and data-intensive capabilities. These gadgets can be found from 64 Kbit as much as 4 Mb in density and assist SPI, SDI, and SQI bus modes. Go to Microchip’s Reminiscence Merchandise web page to study concerning the firm’s full portfolio of reminiscence gadgets.
The two Mb and 4 Mb serial SRAM gadgets can be found at $1.60 every in 10,000-unit portions.
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