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MC-4516CB647

NEC
Part Number MC-4516CB647
Manufacturer NEC
Description 16M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE
Published Apr 26, 2005
Detailed Description DATA SHEET MOS INTEGRATED CIRCUIT MC-4516CB647 16M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE 5 D...
Datasheet PDF File MC-4516CB647 PDF File

MC-4516CB647
MC-4516CB647

Overview
DATA SHEET MOS INTEGRATED CIRCUIT MC-4516CB647 16M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE 5 Description The MC-4516CB647EF and MC-4516CB647PF are 16,777,216 words by 64 bits synchronous dynamic RAM module on which 8 pieces of 128M SDRAM: µPD45128841 are assembled.
This module provides high density and large quantities of memory in a small space without utilizing the surfacemounting 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 /CAS latency Clock frequency (MAX.
) MC-4516CB647EF-A75 CL = 3 CL = 2 MC-4516CB647PF-A75 CL = 3 CL = 2 133 MHz 100 MHz 133 MHz 100 MHz Access time from CLK (MAX.
) 5.
4 ns 6.
0 ns 5.
4 ns 6.
0 ns 5 5 5 5 • Fully Synchronous Dynamic RAM, with all signals referenced to a positive clock edge • Pulsed interface • Possible to assert random column address in every cycle • Quad internal banks controlled by BA0 and BA1 (Bank Select) • Programmable burst-length (1, 2, 4, 8 and full page) • Programmable wrap sequence (sequential / interleave) • Programmable /CAS latency (2, 3) • Automatic precharge and controlled precharge • CBR (Auto) refresh and self refresh • All DQs have 10 Ω ±10 % of series resistor • Single 3.
3 V ± 0.
3 V power supply • LVTTL compatible • 4,096 refresh cycles/64 ms • Burst termination by Burst Stop command and Precharge command • 168-pin dual in-line memory module (Pin pitch = 1.
27 mm) • Unbuffered type • Serial PD 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.
Document No.
M14406EJ2V0DS00 (2nd edition) Date Published January 2000 NS CP(K) Printed in Japan The mark • shows major revised points.
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