What is Battery Backed SRAM?
Battery backed memory has an internal lithium power source and a self-contained control circuitry which constantly monitors VCC for any out-of-tolerance conditions. If such a condition occurs, the lithium battery will automatically switch on and the memory’s write protection is unconditionally enabled in order to prevent data corruption. The number of write cycles that can be executed have no limit and there is no additional support circuitry that is required for microprocessor interfacing. Data can be reliably stored for several years solely on battery power, and data can be stored for a much longer period when VCC is powered. Static random-access memory, or SRAM, is a type of semiconductor memory which uses bistable latching circuitry in order to store each bit. SRAM is different from dynamic RAM (DRAM), which must be refreshed periodically.
Types of Battery Backed SRAMs
There are many different kinds of battery backed SRAMs and at Future Electronics we stock many of the most common types categorized by memory organization, maximum access time, temperature grade, packaging type and nominal supply voltage. The parametric filters on our website can help refine your search results depending on the required specifications.
The most common sizes for maximum access time are 70 ns, 100 ns and 150 ns. We also carry battery backed SRAMs with maximum access time as low as 25 ns. The nominal supply voltage can range from 3 V to 5.5 V, with the most common battery backed SRAM chips having a nominal supply voltage from 4.5 V to 5.5 V.
Battery Backed SRAMs from Future Electronics
Future Electronics has a full selection of battery backed SRAM chips from several manufacturers that can be used to design battery backup SRAM circuit such as an SRAM memory cell, memory modules, SRAM memory card or any other SRAM memory chip. Simply choose from the battery backed SRAM technical attributes below and your search results will quickly be narrowed to match your specific battery backed SRAM application needs.
If you have a preferred brand, we deal with several manufacturers such as Alliance Memory Inc, Cypress, Simtek or STMicroelectronics. You can easily refine your battery backed SRAM product search results by clicking your preferred battery backed SRAM brand below from our list of manufacturers.
Applications for Battery Backed SRAMs:
SRAM is faster and demands less power than DRAM. It is used where either low power or bandwidth are required. SRAM is also easier to control and more truly random access than modern DRAM types. SRAM is also used in PCs, routers, workstations and peripheral equipment: internal CPU caches and external burst mode SRAM caches, router buffers and hard disk buffers, among others. LCD screens and printers also use SRAM in order to hold the image to be printed or displayed. Small SRAM buffers are also found in CD-ROM and CD-RW drives.
Choosing the Right Battery Backed SRAM:
When you are looking for the right battery backed SRAMs, with the FutureElectronics.com parametric search, you can filter the results by various attributes: by Memory Organization (2 K x 8, 32 K x 8, 8 K x 8,…), Maximum Access Time (70 ns, 100 ns, 150 ns,…) and Temperature Grade (Commercial, Industrial) to name a few. You will be able to find the right chip from several manufacturers that can be used to design a battery backup SRAM circuit such as an SRAM memory card, SRAM memory cell, memory modules, or any other SRAM memory chips.
Battery Backed SRAMs in Production Ready Packaging or R&D Quantities
If the quantity of battery backed SRAMs required is less than a full reel, we offer customers many of our programmable battery backed SRAM products in tube, tray or individual quantities that will avoid unneeded surplus.
In addition, Future Electronics offers clients a unique bonded inventory program that is designed to eliminate potential problems that may arise from an unpredictable supply of products containing raw metals and products with erratic or long lead times. Talk with your nearest Future Electronics branch and find out more on how you and your company can avoid possible shortages.