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參數(shù)資料
| 型號： | UPD46128512-X |
| 廠商： | NEC Corp. |
| 英文描述： | 128M-BIT CMOS MOBILE SPECIFIED RAM 8M-WORD BY 16-BIT EXTENDED TEMPERATURE OPERATION |
| 中文描述： | 128兆位CMOS移動指明內(nèi)存800萬字由16位溫度范圍 |
| 文件頁數(shù)： | 80/82頁 |
| 文件大?。?/td> | 817K |
| 代理商： | UPD46128512-X |
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Preliminary Data Sheet M17507EJ2V0DS
80
μ
PD46128512-X
Revision History
Edition/
Page
Type of
Location
Description
Date
This
Previous
revision
(Previous edition
→
This edition)
edition
edition
2nd edition/
p.6
p.6
Modification Burst Operation
Notes 3 and 8 have been modified.
Sep. 2005
Addition
Note 10 has been added.
p.14
p.14
Modification 3. Page Read Operation
Text has been modified.
3.1 Features of Page Read
Note has been modified.
Operation
p.17
p.17
Modification 4.4 Single Write
Text has been modified.
4.5 /WE Control
Text has been modified.
p.18
p.18
Modification 4.6 Burst Read Suspend/
Text has been modified.
Resume
p.19
p.19
Modification 4.7 Burst Write Suspend/
Text has been modified.
Resume
p.22
p.22
Modification 4.10.1 Feature of /WAIT output Text has been modified.
p.23
p.23
Addition
Figure 4-8. Read /WAIT Output Text has been added.
(/CE1 = LOW, /ADV = HIGH
→
LOW)
p.25
p.25
Addition
Table 4-1. Burst Sequence
Remark 2 has been added.
p.26
p.26
Addition
Table 4-2. Dummy Wait Cycles “(Write Latency = n-1)” has been added in
and Read Latency
parameter of table.
Modification
Remark has been modified.
p.27
p.27
Addition
4.11 Reset Function from
“Refer to Figure 2-1. Standby Mode State
Synchronous Burst Mode to
Machine.” has been added.
Asynchronous Page Mode
p.28
p.28
Modification 5.1 Mode Register Setting
“read a specific address”
Method
→
“read any address”
Addition
5.2 Cautions for Setting Mode
“except page mode (M = 1)” has been added.
Register
p.32
p.32
Modification 5. 12 Caution for Timing Chart Text has been modified.
of Setting Mode
p.42
p.42
Addition
Figure 7-10. Asynchronous
Cautions 4 and 5 have been added.
Page Read Cycle Timing Chart
pp.43-56 pp.43-56
Modification Each Figures
Remark has been modified.
p.57
p.57
Modification 8. Synchronous AC
Title has been modified.
Specification, Timing Chart
p.77
p.77
Modification Figure 10-2. Standby Mode 2
Title has been modified.
Entry / Exit Timing Chart
(Synchronous Mode)
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