MC-45D16CA721

PRELIMINARY DATA SHEET MOS INTEGRATED CIRCUIT MC-45D16CA721 16 M-WORD BY 72-BIT DDR SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE 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. Decoupling capacitors are mounted on power supply line for noise reduction. Features 16,777,216 words by 72 bits organization (ECC type) Clock frequency Part number /CAS latency Clock frequency (MAX.) MC-45D16CA721KF-C75 CL = 2.5 CL = 2 MC-45D16CA721KF-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 2.5 V ± 0.2 V Pow...