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128Mb x16
SDRAM Addendum
PRELIMINARY
x16 Addendum
MT48lc8m16a2_addendum.fm - Rev 7/02
2002, Micron Technology Inc.
4
DATA SHEET DESIGNATION
Preliminary: This data sheet contains initial charac-
terization limits that are subject to change upon full
characterization of production devices.
AC FUNCTIONAL CHARACTERISTICS
Notes appear in the standard data sheet.
PARAMETER
SYMBOL
-6A SPEED
UNITS
NOTES
READ/WRITE command to READ/WRITE command
t
CCD
t
CKED
t
PED
t
DQD
t
DQM
t
DQZ
t
DWD
t
DAL
t
DPL
t
BDL
t
CDL
t
RDL
t
MRD
1
t
CK
t
CK
t
CK
t
CK
t
CK
t
CK
t
CK
t
CK
t
CK
t
CK
t
CK
t
CK
t
CK
17
CKE to clock disable or power-down entry mode
1
14
CKE to clock enable or power-down exit setup mode
1
14
DQM to input data delay
0
17
DQM to data mask during WRITEs
0
17
DQM to data high-impedance during READs
2
17
WRITE command to input data delay
0
17
Data-in to ACTIVE command
5
15, 21
1
16, 21
Data-in to PRECHARGE command
2
Last data-in to burst STOP command
1
17
Last data-in to new READ/WRITE command
1
17
Last data-in to PRECHARGE command
2
16, 21
LOAD MODE REGISTER command to ACTIVE or
REFRESH command
Data-out to high-impedance from PRECHARGE
command (CL=3)
2
26
t
ROH(3)
3
t
CK
17
NOTE:
1. The Note 21 in the standard data sheet does not apply for this speed grade and should read “Based on
t
CK = 6ns”