DDR 400 ECC/Registered DIMM
Power supply: VDD: 2.6V ± 0.1V, VDDQ: 2.6V ± 0.1V
Max clock Freq: 400MHz.
Double-data-rate architecture; two data transfers per clock cycle
Differential clock inputs (CK and /CK)
Burst Mode Operation.
Auto and Self Refresh.
Data I/O transactions on both edge of data strobe.
Edge aligned data output, center aligned data Input.
Serial Presence Detect (SPD) with serial EEPROM
SSTL_2 compatible inputs and outputs.
MRS cycle with address key programs.
CAS Latency (Access from column address): 3
Burst Length (2, 4, 8)
Data Sequence (Sequential & Interleave)
Description
The IRVINE DDR400 ECC/Registered DIMM is a Double Data Rate SDRAM high-density module for server and workstation. It consists of 18pcs CMOS Double Data Rate SDRAMs in 66 pin TSOP-II 400mil packages, 2pcs drive ICs for input control signal, 1pcs PLL, and a 2048 bits serial EEPROM on a 184-pin printed circuit board.
The DDR400 ECC/Registered DIMM is a dual in-line memory module and is intended for mounting into 184-pin edge connector sockets. Synchronous design allows precise cycle control with the use of system clock. Data I/O transactions are possible on both edges of DQS. Range of operation frequencies, programmable latencies allow the same device to be useful for a variety of high bandwidth, high performance memory system applications.
The DDR400 is offered in quantities in 256MB up to 2G capacities.
