Product,SRAM
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l Product Name: SRAM = Static Random-Access Memory (Static Random-Access Memory)
2. Core Essence: A high-speed semiconductor memory that does not require refreshing and loses data upon power loss; it serves as the core storage medium for CPU caches and registers.
3. Packaging Form: LQFP (Low-Profile Quad Flat Package), featuring gull-wing leads around all sides, which is the standard packaging form for traditional parallel SRAM.
4. Positioning: One of the fastest general-purpose memories, but with small capacity and extremely high cost, making it unsuitable for large-scale main memory.
2. Core Essence: A high-speed semiconductor memory that does not require refreshing and loses data upon power loss; it serves as the core storage medium for CPU caches and registers.
3. Packaging Form: LQFP (Low-Profile Quad Flat Package), featuring gull-wing leads around all sides, which is the standard packaging form for traditional parallel SRAM.
4. Positioning: One of the fastest general-purpose memories, but with small capacity and extremely high cost, making it unsuitable for large-scale main memory.
M Storage Cell Structure • Each bit is composed of a bistable flip-flop made up of **6 MOS transistors (6T structure)** • Data remains permanently stored as long as power is not interrupted, unlike DRAM which requires periodic refreshing • There is no capacitor charging/discharging process, resulting in extremely low access latency and very high speed
arameters and Specifications Table
Parameter Item Typical Range
Single Chip Capacity 1KB ~ 64MB (Industrial grade up to 256MB)
Access Time 10ns ~ 70ns (High-speed models up to less than 2ns)
Interface Type Parallel SRAM (Asynchronous/Synchronous), SPI Serial SRAM
Operating Voltage Multiple voltages: 1.8V / 3.3V / 5V
Data Bus Width x8 / x16 / x32 bits