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MT46H32M16LFBF-6:B TR 产品设计参考手册 - Micron(镁光)
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MT46H32M16LFBF-6:B TR数据手册
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TN-46-16: 512Mb Mobile DDR: 95nm to 78nm
Introduction
PDF: 09005aef82dfb176 / Source: 09005aef82dfb194 Micron Technology, Inc., reserves the right to change products or specifications without notice.
tn4616_512_mddr_95_to_78nm_t37_47m.fm - Rev. B 9/07 EN
1 ©2007 Micron Technology, Inc. All rights reserved.
Products and specifications discussed herein are for evaluation and reference purposes only and are subject to change by
Micron without notice. Products are only warranted by Micron to meet Micron’s production data sheet specifications. All
information discussed herein is provided on an “as is” basis, without warranties of any kind.
Technical Note
512Mb Mobile DDR: 95nm to 78nm Product Transition Guide
Introduction
This document describes critical product differences associated with the 512Mb Mobile
(LP) DDR SDRAM product as it transitions from 95nm process technology to 78nm
process technology. Micron makes every effort to ensure that new replacement products
have full functional compatibility with previous products. This is accomplished through
design, ATE characterization, and target system validation when possible. It is therefore
unlikely that a system that has been designed with a Micron LP DDR SDRAM product
will have any problems with a Micron replacement product. Micron does recommend,
however, that the target system design be fully evaluated with the final version of the
new product prior to conversion.
Part Number Transition
Examples of replacement part numbers are shown in Table 1. These numbers are
reflected in the data sheet for the replacement product.
Status Read Register for 78nm Product
The status read register (SRR) has been added to the 78nm product. It is used to read the
manufacturer ID, revision ID, refresh multiplier, width, type, and density of the Mobile
SDRAM, as shown in Figure 1 on page 2. The information made available from this read-
only register can assist the component package manufacturer. It can also be useful for
product operation in the target application. The SRR is read via the LOAD MODE
REGISTER command with BA0 = 1 and BA1 = 0. Consult the 78nm product data sheet for
a full description of the SRR operation.
Table 1: Part Number Replacement Examples
95nm Part Number 78nm Part Number
MT46H16M32LFCM-6 MT46H16M32LFCM-6:B
MT46H16M32LFCM-6 IT MT46H16M32LFCM-6 IT:B
MT46H16M32LFCM-75 MT46H16M32LFCM-6:B
MT46H16M32LFCM-75 IT MT46H16M32LFCM-6 IT:B
MT46H32M16LFCK-6 MT46H32M16LFBF-6:B
MT46H32M16LFCK-6 IT MT46H32M16LFBF-6 IT:B
MT46H32M16LFCK-75 MT46H32M16LFBF-6:B
MT46H32M16LFCK-75 IT MT46H32M16LFBF-6 IT:B
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