Details, datasheet, quote on part number: MC-458CA721PSA-A80
PartMC-458CA721PSA-A80
CategoryAnalog & Mixed-Signal Processing
Description64m-word BY 72-bit Synchronous Dynamic RAM Module Registered Type
CompanyNEC Electronics Inc.
DatasheetDownload MC-458CA721PSA-A80 datasheet
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Features, Applications

Description

The a 67,108,864 words by 72 bits synchronous dynamic RAM module on which 36 pieces 128 M SDRAM: PD45128441 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
67,108,864 words by 72 bits organization (ECC type) Clock frequency and access time from CLK

Part number MC-4564EC727EF-A75 /CAS latency = 2 Clock frequency (MAX.) 133 MHz 100 MHz 133 MHz 100 MHz Access time from CLK (MAX.) 6.0 ns Module type PC133 Registered DIMM Rev. 1.0 Compliant

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 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 of series resistor Single 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) Registered type Serial PD Stacked monolithic technology

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. M14461EJ2V0DS00 (2nd edition) Date Published February 2000 NS CP(K) Printed in Japan

Part number MC-4564EC727EF-A75 Clock frequency MHz (MAX.) 133 MHz Package 168-pin Dual In-line Memory Module (Socket Type) Edge connector: Gold plated 43.18 mm height Mounted devices 36 pieces of PD45128441G5 (Rev. (10.16mm (400) TSOP (II)) 36 pieces of PD45128441G5 (Rev. (10.16mm (400) TSOP (II))

168-pin Dual In-line Memory Module Socket Type (Edge connector: Gold plated)

CB7 : Data Inputs/Outputs - /CS3 /RAS /CAS /WE - SA2 SDA SCL VCC VSS REGE NC : Clock Input : Clock Enable Input : Write Protect : Chip Select Input : Row Address Strobe : Column Address Strobe : Write Enable : DQ Mask Enable : Address Input for EEPROM : Serial Data I/O for PD : Clock Input for PD : Power Supply : Ground : Register / Buffer Enable : No Connection


 

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