參數(shù)資料
型號： MT48H16M16LFFG
廠商： Micron Technology, Inc.
英文描述： MOBILE SDRAM
中文描述： 移動(dòng)SDRAM
文件頁數(shù)： 3/58頁
文件大小： 1451K
代理商： MT48H16M16LFFG
3
256Mb: x16 Mobile SDRAM
MobileRamY26L_A.p65 – Pub. 5/02
Micron Technology, Inc., reserves the right to change products or specifications without notice.
2002, Micron Technology, Inc.
256Mb: x16
MOBILE SDRAM
ADVANCE
TABLE OF CONTENTS
F
unctional Block Diagram – 16 Meg x 16 ..................
54-Ball FBGA Pin Description ....................................
4
5
Functional Description
...............................................
Initialization ...........................................................
Register Definition ................................................
Mode Register ...................................................
Burst Length................................................
Burst Type ...................................................
CAS Latency ................................................
Operating Mode..........................................
Write Burst Mode ........................................
Extended Mode Register ...........................
Temperature Compensated Self Refresh
Partial Array Self Refresh........................... 10
Deep Power Down...................................... 10
Driver Strength ........................................... 10
Commands
................................................................... 11
Truth Table 1 (Commands and DQM Operation)
.............. 11
Command Inhibit .................................................. 12
No Operation (NOP) .............................................. 12
Load mode register ................................................ 12
Active ....................................................................... 12
Read ....................................................................... 12
Write ....................................................................... 12
Precharge ................................................................ 12
Auto Precharge....................................................... 12
Auto Refresh ........................................................... 12
Self Refresh ............................................................. 13
Operation
..................................................................... 14
Bank/Row Activation ............................................. 14
Reads ....................................................................... 15
Writes ....................................................................... 21
Precharge ................................................................ 23
Power-Down ........................................................... 23
Deep Power-Down ................................................ 24
Clock Suspend........................................................ 24
Burst Read/Single Write ....................................... 24
Concurrent Auto Precharge ................................. 25
6
6
6
6
6
7
8
8
8
9
9
Truth Table 2 (CKE)
...................................................... 27
Truth Table 3 (Current State, Same Bank)
...................... 28
Truth Table 4 (Current State, Different Bank)
................. 30
Absolute Maximum Ratings....................................... 32
DC Electrical Characteristics
and Operating Conditions.....................................
32
Capacitance.................................................................. 33
AC Electrical Characteristics
(Timing Table) ......... 33
I
DD
Specifications and Conditions............................. 35
Timing Waveforms
Initialize and Load mode register........................ 37
Power-Down Mode ................................................ 38
Clock Suspend Mode ............................................ 39
Auto Refresh Mode ................................................ 40
Self Refresh Mode .................................................. 41
Reads
Read – Without Auto Precharge ..................... 42
Read – With Auto Precharge ........................... 43
Single Read – Without Auto Precharge ......... 44
Single Read – With Auto Precharge ............... 45
Alternating Bank Read Accesses .................... 46
Read – Full-Page Burst .................................... 47
Read – DQM Operation ................................... 48
Writes
Write – Without Auto Precharge..................... 49
Write – With Auto Precharge........................... 50
Single Write - Without Auto Precharge ......... 51
Single Write - Without Auto Precharge ......... 52
Alternating Bank Write Accesses ................... 53
Write – Full-Page Burst .................................... 54
Write – DQM Operation................................... 55
Package Dimensions
54-pin FBGA ............................................................ 56
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