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MC-4R128CPE6C-653 Datasheet(PDF) 1 Page - NEC |
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MC-4R128CPE6C-653 Datasheet(HTML) 1 Page - NEC |
1 / 6 page The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version. Not all devices/types available in every country. Please check with local NEC representative for availability and additional information. © 2000 MOS INTEGRATED CIRCUIT MC-4R128CPE6C Direct Rambus TM DRAM RIMMTM Module 128M-BYTE (64M-WORD x 16-BIT) PRELIMINARY DATA SHEET Document No. M14807EJ2V0DS00 (2nd edition) Date Published August 2000 NS CP (K) Printed in Japan The mark 5 5 5 5 shows major revised points. Description The Direct Rambus RIMM module is a general-purpose high-performance memory module subsystem suitable for use in a broad range of applications including computer memory, personal computers, workstations, and other applications where high bandwidth and low latency are required. MC-4R128CPE6C modules consists of eight 128M Direct Rambus DRAM (Direct RDRAM™) devices ( µPD488448). These are extremely high-speed CMOS DRAMs organized as 8M words by 16 bits. The use of Rambus Signaling Level (RSL) technology permits 600MHz, 711MHz or 800MHz transfer rates while using conventional system and board design technologies. Direct RDRAM devices are capable of sustained data transfers at 1.25 ns per two bytes (10 ns per sixteen bytes). The architecture of the Direct RDRAM enables the highest sustained bandwidth for multiple, simultaneous, randomly addressed memory transactions. The separate control and data buses with independent row and column control yield over 95 % bus efficiency. The Direct RDRAM's 32 banks support up to four simultaneous transactions per device. Features • 184 edge connector pads with 1mm pad spacing • 128 MB Direct RDRAM storage • Each RDRAM® has 32 banks, for 256 banks total on module • Gold plated contacts • RDRAMs use Chip Scale Package (CSP) • Serial Presence Detect support • Operates from a 2.5 V supply • Low power and powerdown self refresh modes • Separate Row and Column buses for higher efficiency • Over Drive Factor (ODF) support |
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