MT42C4256 - 256K x 4 VRAM
MT42C4256 Features
* Class B High-Reliability Processing
* DRAM: 262144 Words × 4 Bits SAM: 512 Words × 4 Bits
* Single 5-V Power Supply (±10% Tolerance)
* Dual Port Accessibility
* Simultaneous and Asynchronous Access From the DRAM and SAM Ports
* Bidirectional-Data-Trans
