8, 16, 32 MEG x 64
NONBUFFERED DRAM DIMMs
EDO PAGE MODE
AC ELECTRICAL CHARACTERISTICS
(Notes: 5, 6, 7, 8, 9, 12, 29) (VDD = +3.3V 0.3V)
ACCHARACTERISTICS
PARAMETER
-5
-6
SYMBOL
MIN
MAX
MIN
MAX
UNITS
ns
ns
NOTES
t
Access time from column address
Column-addresssetuptoCAS#
prechargeduringwrites
AA
25
30
t
ACH
12
15
t
Column-addressholdtime(referencedtoRAS#)
Column-addresssetuptime
Row-addresssetuptime
Column address to WE# delay time
Access time from CAS#
Column-addressholdtime
CAS#pulsewidth
CAS#holdtime(CBRRefresh)
CAS# to output in Low-Z
Data output hold after CAS# LOW
CAS#prechargetime
Access time from CAS# precharge
CAS# to RAS# precharge time
CAS# hold time
CAS# setup time (CBR Refresh)
CAS# to WE# delay time
WRITE command to CAS# lead time
Data-in hold time
AR
38
0
0
45
0
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
ASC
t
ASR
t
AWD
42
49
23
14
t
CAC
13
15
t
CAH
8
8
8
0
3
8
10
10
10
0
3
10
t
CAS
10,000
10,000
t
CHR
4
t
CLZ
t
COH
t
CP
15
t
CPA
CRP
28
35
t
5
38
5
5
45
5
t
CSH
t
CSR
4
t
CWD
CWL
30
8
8
0
0
35
10
10
0
23
t
t
DH
DS
22
22
t
Data-in setup time
Outputdisable
Outputenable
OE# hold time from WE# during
READ-MODIFY-WRITEcycle
t
OD
OE
12
12
0
15
15
t
t
OEH
8
10
t
OE# HIGH hold time from CAS# HIGH
OE#HIGHpulsewidth
OE# LOW to CAS# HIGH setup time
Output buffer turn-off delay
OE# setup prior to RAS#
duringHIDDENREFRESHcycle
OEHC
5
5
4
0
0
10
5
5
0
0
ns
ns
ns
ns
ns
t
OEP
t
OES
t
OFF
12
50
15
60
19, 27
19
t
ORD
t
EDO-PAGE-MODEREADorWRITEcycletime
EDO-PAGE-MODEREAD-WRITEcycletime
Access time from RAS#
RAS# to column-address delay time
Row-addressholdtime
PC
20
47
25
56
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
PRWC
t
RAC
13
17
t
RAD
9
9
12
10
60
60
104
14
0
t
RAH
t
RAS#pulsewidth
RAS
50
50
84
11
0
10,000
125,000
10,000
125,000
t
RAS#pulsewidth(EDOPAGEMODE)
Random READ or WRITE cycle time
RAS# to CAS# delay time
READcommandholdtime(referencedtoCAS#)
READcommandsetuptime
RASP
t
RC
RCD
RCH
RCS
t
16
18
t
t
0
0
8, 16, 32 Meg x 64 Nonbuffered DRAM DIMMs
DM78.p65 – Rev. 2/99
MicronTechnology,Inc.,reservestherighttochangeproductsorspecificationswithoutnotice.
©1999,MicronTechnology,Inc.
11
MICRON [ MICRON TECHNOLOGY ]
