MC-45D32CC721
Description
The MC-45D32CC721 is a 33,554,432 words by 72 bits DDR synchronous dynamic RAM module on which 18 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.
Key Features
- 33,554,432 words by 72 bits organization (ECC type)
- Clock frequency Part number /CAS latency Clock frequency (MAX.) MC-45D32CC721KFA-C75 CL = 2.5 CL = 2 MC-45D32CC721KFA-C80 CL = 2.5 CL = 2 133 MHz 100 MHz 125 MHz 100 MHz DDR SDRAM Unbuffered DIMM Design specification Rev.0.9 compliant Module type
- 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 outputs and DQS are synchronized with a cross point of CLK and /CLK
- 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
