MC-45D16CA721 Description
The MC-45D16CA721 is a 16,777,216 words by 72 bits DDR synchronous dynamic RAM module on which 9 pieces of 128M DDR SDRAM: µPD45D128842 are assembled. These modules provide high density and large quantities of memory in a small space without utilizing the surfacemounting technology on the printed circuit board.
MC-45D16CA721 Key Features
- 16,777,216 words by 72 bits organization (ECC type)
- Clock frequency
- Fully Synchronous Dynamic RAM with all signals except DM, DQS and DQ referenced to a positive clock edge
- Double Data Rate interface Differential CLK (/CLK) input Data inputs and DM are synchronized with both edges of DQS Data
- Quad internal banks operation
- Possible to assert random column address in every clock cycle
- Programmable Mode register set /CAS latency (2, 2.5) Burst length (2, 4, 8) Wrap sequence (Sequential / Interleave)
- Automatic precharge and controlled precharge
- CBR (Auto) refresh and self refresh
- 2.5 V ± 0.2 V Power supply for VDD