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PDF ( 数据手册 , 数据表 ) MC-4516DA727PFA-A75

零件编号 MC-4516DA727PFA-A75
描述 16M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE
制造商 NEC
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MC-4516DA727PFA-A75 数据手册, 描述, 功能
DATA SHEET
MOS INTEGRATED CIRCUIT
MC-4516DA727
16M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE
REGISTERED TYPE
Description
The MC-4516DA727 is a 16,777,216 words by 72 bits synchronous dynamic RAM module on which 9 pieces of
128M SDRAM: µPD45128841 are assembled.
These modules provide 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 72 bits organization (ECC type)
Clock frequency and access time from CLK.
Part number
/CAS latency
Clock frequency
(MAX.)
MC-4516DA727EFA-A75
CL = 3
133 MHz
5
5 MC-4516DA727PFA-A75
CL = 2
CL = 3
100 MHz
133 MHz
CL = 2
100 MHz
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)
5 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)
Registered type
Serial PD
Access time from CLK
(MAX.)
5.4 ns
6.0 ns
5.4 ns
6.0 ns
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. M14082EJ4V0DS00 (4th edition)
Date Published February 2000 NS CP(K)
Printed in Japan
The mark 5 shows major revised points.
©
1999







MC-4516DA727PFA-A75 pdf, 数据表
MC-4516DA727
Synchronous Characteristics
Parameter
Symbol
Clock cycle time
5
/CAS latency = 3
/CAS latency = 2
Access time from CLK
5
/CAS latency = 3
/CAS latency = 2
Input clock frequency
Input CLK duty cycle
Data-out hold time
Data-out low-impedance time
5 Data-out high-impedance time
5
/CAS latency = 3
/CAS latency = 2
Data-in setup time
Data-in hold time
Address setup time
Address hold time
CKE setup time
CKE hold time
CKE setup time (Power down exit)
Command (/CS0, /CS2, /RAS, /CAS, /WE,
DQMB0 - DQMB7) setup time
Command (/CS0, /CS2, /RAS, /CAS, /WE,
DQMB0 - DQMB7) hold time
tCK3
tCK2
tAC3
tAC2
tOH
tLZ
tHZ3
tHZ2
tDS
tDH
tAS
tAH
tCKS
tCKH
tCKSP
tCMS
tCMH
Note 1. Output load
Output
Z = 50
MIN.
7.5
10
50
45
2.7
0
3.0
3.0
1.5
0.8
1.5
0.8
1.5
0.8
1.5
1.5
-A 75
MAX.
(133 MHz)
(100 MHz)
5.4
6.0
133
55
5.4
6.0
0.8
Unit Note
ns
ns
ns
ns
MHz
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1
1
1
50 pF
Remark These specifications are applied to the monolithic device.
8 Data Sheet M14082EJ4V0DS00







MC-4516DA727PFA-A75 equivalent, schematic
MC-4516DA727
CAUTION FOR HANDLING MEMORY MODULES
When handling or inserting memory modules, be sure not to touch any components on the modules, such as
the memory IC, chip capacitors and chip resistors. It is necessary to avoid undue mechanical stress on these
components to prevent damaging them.
When re-packing memory modules, be sure the modules are NOT touching each other. Modules in contact
with other modules may cause excessive mechanical stress, which may damage the modules.
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
No part of this document may be copied or reproduced in any form or by any means without the prior written
consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in
this document.
NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual property
rights of third parties by or arising from use of a device described herein or any other liability arising from use
of such device. No license, either express, implied or otherwise, is granted under any patents, copyrights or other
intellectual property rights of NEC Corporation or others.
Descriptions of circuits, software, and other related information in this document are provided for illustrative
purposes in semiconductor product operation and application examples. The incorporation of these circuits,
software, and information in the design of the customer's equipment shall be done under the full responsibility
of the customer. NEC Corporation assumes no responsibility for any losses incurred by the customer or third
parties arising from the use of these circuits, software, and information.
While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices,
the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or
property arising from a defect in an NEC semiconductor device, customers must incorporate sufficient safety
measures in its design, such as redundancy, fire-containment, and anti-failure features.
NEC devices are classified into the following three quality grades:
"Standard", "Special", and "Specific". The Specific quality grade applies only to devices developed based on a
customer designated "quality assurance program" for a specific application. The recommended applications of
a device depend on its quality grade, as indicated below. Customers must check the quality grade of each device
before using it in a particular application.
Standard: Computers, office equipment, communications equipment, test and measurement equipment,
audio and visual equipment, home electronic appliances, machine tools, personal electronic
equipment and industrial robots
Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster
systems, anti-crime systems, safety equipment and medical equipment (not specifically designed
for life support)
Specific: Aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life
support systems or medical equipment for life support, etc.
The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books.
If customers intend to use NEC devices for applications other than those specified for Standard quality grade,
they should contact an NEC sales representative in advance.
M7 98. 8










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