mt18ld472ag-5 Micron Semiconductor Products, mt18ld472ag-5 Datasheet - Page 12

• Manufacturer Part Number: mt18ld472ag-5
• Description: 2, 4 Meg X 72 Nonbuffered Dram Dimms
• Manufacturer: Micron Semiconductor Products

OBSOLETE
EDO PAGE MODE
AC ELECTRICAL CHARACTERISTICS
(Notes: 5, 6, 7, 8, 9, 12, 29) (V
2, 4 Meg x 72 Nonbuffered DRAM DIMMs
DM60.p65 – Rev. 6/98
AC CHARACTERISTICS - EDO PAGE MODE OPTION
PARAMETER
Access time from column address
Column-address setup to CAS# precharge
Column-address hold time (referenced to RAS#)
Column-address setup time
Row-address setup time
Column-address to WE# delay time
Access time from CAS#
Column-address hold time
CAS# pulse width
CAS# hold time (CBR Refresh)
CAS# to output in Low-Z
Data output hold after CAS# LOW
CAS# precharge time
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
Data-in setup time
Output disable
Output enable
OE# hold time from WE# during
READ-MODIFY-WRITE cycle
OE# HIGH hold time from CAS# HIGH
OE# HIGH pulse width
OE# LOW to CAS# HIGH setup time
Output buffer turn-off delay
OE# setup prior to RAS#
during HIDDEN REFRESH cycle
EDO-PAGE-MODE READ or WRITE cycle time
EDO-PAGE-MODE READ-WRITE cycle time
Access time from RAS#
RAS# to column-address delay time
Row-address hold time
RAS# pulse width
RAS# pulse width (EDO PAGE MODE)
Random READ or WRITE cycle time
RAS# to CAS# delay time
READ command hold time (referenced to CAS#)
READ command setup time
Refresh period (2,048 cycles)
RAS# precharge time
DD
= +3.3V 0.3V)
SYMBOL
t
t
PRWC
t
t
t
OEHC
t
t
t
RASP
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
CWD
t
t
AWD
t
ACH
CAC
CAH
CHR
COH
CRP
CSH
CSR
CWL
OEH
OEP
OES
ORD
RAC
RAD
RAH
RCD
RCH
RCS
ASC
ASR
CAS
CPA
t
OFF
RAS
REF
t
CLZ
t
t
t
t
t
t
t
t
DH
OD
OE
RC
AA
AR
CP
DS
PC
RP
12
MIN
12
42
38
47
50
50
84
38
28
20
11
30
0
0
8
8
8
0
3
8
5
5
8
8
0
0
8
5
5
4
0
0
9
9
0
0
-5
125,000
NONBUFFERED DRAM DIMMs
10,000
10,000
MAX
Micron Technology, Inc., reserves the right to change products or specifications without notice.
25
13
28
12
12
12
50
32
10/12*
MIN
104
15
10
10
10
10
45
10
10
10
56
12
10
60
60
45
49
35
25
14
40
0
0
0
3
5
5
0
0
5
5
0
0
0
0
-6
125,000
10,000
10,000
MAX
30
15
35
15
15
15
60
32
2, 4 MEG x 72
UNITS
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1998, Micron Technology, Inc.
NOTES
19, 26
23
14
15
23
22
22
21
21
13
17
16
18
4
4