DETAILS256Mb 400MHz DDR RAM memory module, DDR400 PC3200 rating. 184 pins, non-ECC, 2.5V, suitable for the majority of desktop computers designed for 400MHz memory. Single-sided with 8 chips, rated CL2.5-3-3. Lifetime warranty.
This module uses 32Mx8 chips (8 chips per module) which makes them very compatible with the widest possible range of systems. The DDR400 module for desktop is a double data rate module composed of CMOS Double Data Rate SDRAMs in TSOP-II 400mil 66pin package and one 2Kbit EEPROM in 8pin TSSOP(TSOP) package on a 184pin glass–epoxy printed circuit board. DDR400 is a dual in-line memory module and is intended for mounting onto 184-pins 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 operating frequencies, programmable latencies and burst lengths allow the same device to be useful for a variety of high bandwidth, high performance memory system applications. Features: - DLL aligns DQ and DQS transition with CK transition - Double-data-rate architecture - Bi-directional data strobe (DQS) - Differential clock inputs(CK and /CK) - Auto refresh and self refresh - 8192 refresh cycles / 64ms - Power supply: VDD, VDDQ: 2.7V+/-0.1V - Programmable Burst length (2,4,8) - Serial Presence Detect with EEPROM SPECIFICATIONS
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