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MC-45V16AD641EF-A75 Arkusz danych(PDF) 1 Page - NEC |
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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. © 1998 MOS INTEGRATED CIRCUIT MC-45V16AD641 DATA SHEET The mark • • • • shows major revised points. Document No. M13823EJ6V0DS00 (6th edition) Date Published June 2000 NS CP (K) Printed in Japan 16M-WORD BY 64-BIT VirtualChannel TM SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE Description The MC-45V16AD641 is a 16,777,216 words by 64 bits VirtualChannel synchronous dynamic RAM module on which 16 pieces of 64M VirtualChannel SDRAM : µPD4565821 are assembled. This module provides high density and large quantities of memory in a small space without utilizing the surface- mounting technology on the printed circuit board. Decoupling capacitors are mounted on power supply line for noise reduction. Features • 16,777,216 words by 64 bits organization • Clock frequency and access time from CLK Part number Read Clock Access Maximum supply current mA latency frequency time Operating Refresh MHz (MAX.) from CLK ns (MAX.) Prefetch Restore Channel read / write (Burst) Auto Self MC-45V16AD641KF-A75 2 133 5.4 880 720 1280 16 MC-45V16AD641KF-A10 100 6 840 600 1120 MC-45V16AD641EF-A75 133 5.4 880 720 1280 MC-45V16AD641EF-A10 100 6 840 600 1120 • Fully Standard Synchronous Dynamic RAM, with all signals referenced to a positive clock edge • Dual internal banks controlled by BA0 (Bank Select) • Programmable Wrap sequence (Sequential / Interleave) • Programmable burst length (1, 2, 4, 8 and 16) • Read latency (2) • Prefetch Read latency (4) • Auto precharge and without auto precharge • Auto refresh and Self refresh • Single 3.3 V ± 0.3 V power supply • Interface: LVTTL • Refresh cycle: 4K cycles / 64 ms • 168-pin dual in-line memory module (Pin pitch = 1.27 mm) • Unbuffered type • Serial PD 5 |
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