MT42C4064Z-10 Video RAM (VRAM) by Micron Technology. Organisation: DRAM: 64K x 4 + SAM: 256 x 4 Timing: DRAM: 100nS , SAM: 33nS Package: 24-ZIP Download Micron MT42C4064Z-10 datasheet: Status: NOS (New Old Stock) RoHS compliant: no