NT256D72S89AKGU

NT256D72S89AKGU 256MB : 32M x 72 Low Profile Registered DDR SDRAM DIMM 184pin Low Profile Registered DDR SDRAM MODULE Based on 32Mx8 DDR SDRAM Features 32Mx72 Low Profile Registered DDR DIMM based on 32Mx8 DDR SDRAM JEDEC Standard 184-pin Dual In-Line Memory Module Error Check Correction (ECC) Support Phase-lock loop (PLL) clock driver to reduce loading Registered inputs with one-clock delay w Performance: PC1600 Speed Sort DIMM CAS Latency f CK Clock Frequency t CK Clock Cycle f DQ DQ Burst Frequency * w a D . w S a t e e h U 4 t m o .c Data is read or written on both clock edges Bi-directional data strobe with one clock cycle preamble and one-half clock post-amble Address and control signals are fully synchronous to positive clock edge Programmable Operation: - Device CAS Latency: 2, 2.5 PC2100 -75B 3.5 133 7.5 266 -7K 3 133 7.5 266 MHz ns MHz Unit - Burst Type: Sequential or Interleave - Burst Length: 2, 4, 8 - Operation: Burst Read and Write -8B 3 100 10 200 Auto Refresh (CBR) and Self Refresh Modes 13/10/1 Addressing (row/column/bank) Serial Presence Detect Gold contacts Automatic and controlled precharge commands 7.8 µs Max. Average Periodic Refresh Interval Intended for 100 MHz and 133 MHz applications Inputs and outputs are SSTL-2 compatible VDD = 2.5Volt ± 0.2, VDDQ = 2.5Volt ± 0.2 SDRAMs have 4 internal banks for concurrent operation Differential clock inputs * SDRAMs in 66-pin TSOP Type II Package One ...