For legacy and new designs Alliance Memory provides hard-to-find SRAMs, pseudo SRAMs, and DRAMs, including DDR, DDR1, DDR2 and DDR3, and low-power LPSDRAM products. Alliance Memory’s ICs provide reliable drop-in, pin-for-pin-compatible replacements for a number of similar solutions over a range of applications requiring high memory bandwidth.
Furthermore they are suited to high performance in PC applications. The devices aim to eliminate costly redesigns by providing long-term support for end-of-life (EOL) components. In addition, the company performs minimal or no die shrinks, which frees up engineering resources.
High-speed CMOS pseudo SRAMs (PSRAM)
At electronica, Alliance Memory will introduce a new family of high-speed CMOS pseudo SRAMs (PSRAMs) that combine the most desirable features of SRAMs and DRAMs to provide designers with easy-to-use, low-power, and cost-effective memory solutions for wireless, automotive, networking, and industrial applications.
Available with densities from eight to 128Mb in 6.0x7.0x1.0mm 48-ball FPBGA and 4.0x4.0x1.0mm 49-ball FPBGA packages, the devices offer industrial temperature ranges, fast access speeds of 70s, and operate from a single power supply of 1.7 to 1.95V or 2.6 to 3.3V. Power-saving features for the PSRAMs include auto temperature-compensated self-refresh (ATCSR); partial array self-refresh (PASR); and a deep power down (DPD) mode.
Low-power SDRAM portfolio expanded
Alliance Memory’s SDRAM portfolio now features a wide variety of components that combine low power consumption with power-saving features to extend battery life in mobile devices. They include SDR (LPSDR), double data rate (LPDDR), and DDR2 (LPDDR2) devices. Featuring power consumption of 1.8V, the company’s LPSDR SDRAMs are available in densities of 128, 256, and 512Mb in 54-ball and 90-ball FBGA packages.
LPDDR devices feature power consumption from 1.7 to 1.95V and densities of 256, 512Mb, one and two gigabytes in the 60-ball and 90-ball FBGA packages. Enabling ultra-slim designs, LPDDR2 SDRAMs offer power consumption of 1.2/1.8V and densities of one, two and four gigabytes in the 134-ball FBGA package.
Furthermore, Alliance Memory is collaborating with Cypress Semiconductor Corporation to help ensure ongoing availability of some of the CY62256 series 32k x eight SRAMs, for which Cypress issued a product discontinuation notification with a last-time buy date of July 4th, 2018. Pursuant to an arrangement between the companies, Alliance Memory will offer the popular devices with their original Cypress part numbers into 2019.
Customers using the CY62256 may also at any time transition to Alliance Memory’s own direct replacement for this device, the AS6C62256 family, which is in stock at Digi-Key, Future, and Mouser.