The AS7C4098A-20JCNTR is a 4M-bit synchronous dual-port Static Random Access Memory (SRAM) manufactured by Alliance Memory. It is a 20 pin, low-power device with a single asynchronous read/write port and a second port designed for high-speed synchronous operation. The device is optimized for use in space-constrained data acquisition and communication applications, including automotive, avionics, and industrial control systems. It features a 20-bit address range (16 MB) and a 5-bit data bus width (4K words). The memory can be operated in multiple configurations to offer a variety of functions, such as direct memory access (DMA), address decoding, addressing multiple devices, pipelining of accesses, FIFO buffering, and concurrent read and write operations. The AS7C4098A-20JCNTR is available in a wide temperature range of -40C to +125C. It is packaged in a compact 20-pin, 8mm x 8mm J-lead plastic package.