參數(shù)資料
型號(hào): MT48LC32M4A2P-7ELIT:G
元件分類(lèi): DRAM
英文描述: 32M X 4 SYNCHRONOUS DRAM, 5.4 ns, PDSO54
封裝: 0.400 INCH, LEAD FREE, PLASTIC, TSOP2-54
文件頁(yè)數(shù): 59/74頁(yè)
文件大?。?/td> 2385K
PDF: 09005aef8091e66d/Source: 09005aef8091e625
Micron Technology, Inc., reserves the right to change products or specifications without notice.
128MSDRAM_2.fm - Rev. N 1/09 EN
62
1999 Micron Technology, Inc. All rights reserved.
128Mb: x4, x8, x16 SDRAM
Timing Diagrams
Figure 46:
Alternating Bank Read Accesses
Notes:
1. For this example, BL = 4, and CL = 2.
2. x16: A9 and A11 = “Don’t Care.”
x8: A11 = “Don’t Care.”
ENABLE AUTO PRECHARGE
tCH
tCL
tCK
tAC
tLZ
DQM /
DQML, DQMH
CLK
A0–A9, A11
DQ
BA0, BA1
A10
tOH
DOUT m
tCMH
tCMS
tAH
tAS
tAH
tAS
tAH
tAS
ROW
DON’T CARE
UNDEFINED
tOH
DOUT m + 3
tAC
tOH
tAC
tOH
tAC
DOUT m + 2
DOUT m + 1
COMMAND
tCMH
tCMS
NOP
ACTIVE
NOP
READ
NOP
ACTIVE
tOH
DOUT b
tAC
READ
ENABLE AUTO PRECHARGE
ROW
ACTIVE
ROW
BANK 0
BANK 3
BANK 0
CKE
tCKH
tCKS
COLUMN m 2
COLUMN b 2
T0
T1
T2
T4
T3
T5
T6
T7
T8
tRP - BANK 0
tRAS - BANK 0
tRCD - BANK 0
CAS Latency - BANK 0
tRCD - BANK 3
CAS Latency - BANK 3
t
RC - BANK 0
RRD
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