MT18LD272A Micron Technology, MT18LD272A Datasheet - Page 23

• Manufacturer Part Number: MT18LD272A
• Description: (MT18LD272A / MT18LD472A) NONBUFFERED DRAM DIMMs
• Manufacturer: Micron Technology

OBSOLETE
FAST PAGE MODE AND EDO PAGE MODE
TIMING PARAMETERS
NOTE: 1.
2, 4 Meg x 72 Nonbuffered DRAM DIMMs
DM60.p65 – Rev. 6/98
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
AA
AR
ASC
ASR
AWD (EDO)
AWD (FPM)
CAC
CAH
CAS (EDO)
CAS (FPM)
CLZ (EDO)
CLZ (FPM)
CP
CPA
CRP
CSH (EDO)
CSH (FPM)
CWD (EDO)
CWD (FPM)
CWL (EDO)
CWL (FPM)
DH
DS
OD (EDO)
t
PC is for LATE WRITE cycles only.
ADDR
RAS#
CAS#
WE#
OE#
DQ
MIN
38
42
38
28
8
0
0
–
8
8
–
0
–
8
5
–
–
–
8
0
0
V
V
V
V
V
V
V
V
V
V
V
V
IOH
IOL
IH
IL
IH
IL
IH
IL
IH
IL
IH
IL
-5*
10,000
MAX
25
13
28
12
–
t CRP
t ASR
FAST/EDO-PAGE-MODE READ-WRITE CYCLE
(LATE WRITE and READ-MODIFY-WRITE cycles)
ROW
t RAD
t RAH
t AR
MIN
45
49
55
10
10
15
10
45
60
35
40
10
15
10
0
0
0
3
5
0
0
t RAC
t RCD
-6
OPEN
t RCS
t ASC
10,000
10,000
t CAC
t CLZ
t AA
MAX
t CSH
30
15
35
15
COLUMN
t OE
t CAH
t RWD
t AWD
t CWD
UNITS
t CAS
t DS
VALID
D OUT
t CWL
t WP
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t DH
VALID
D IN
t OD
23
t CAC
t CLZ
t CP
t RASP
t ASC
t AA
t CPA
t OE
COLUMN
* EDO version only
**16MB DIMM
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t PC
OD (FPM)
OE
OEH (EDO)
OEH (FPM)
PC (EDO)
PC (FPM)
PRWC (EDO)
PRWC (FPM)
RAC
RAD (EDO)
RAD (FPM)
RAH
RASP
RCD (EDO)
RCD (FPM)
RCS
RP
RSH
RWD (EDO)
RWD (FPM)
RWL
WP (EDO)
WP (FPM)
t CAH
t AWD
t CWD
t CAS
t DS
D OUT
t PRWC
VALID
t CWL
t WP
t DH
NONBUFFERED DRAM DIMMs
NOTE 1
VALID
D IN
t OD
Micron Technology, Inc., reserves the right to change products or specifications without notice.
t CAC
t CLZ
t CP
t ASC
t AA
t CPA
t OE
COLUMN
MIN
20
47
50
11
30
13
67
13
–
8
–
–
–
9
–
9
–
0
–
5
–
t CAH
t AWD
t CWD
t DS
VALID
D OUT
-5*
t RSH
t CAS
125,000
MAX
VALID
27
D IN
12
50
–
t OD
t OEH
t DH
t WP
t CWL
DON’T CARE
UNDEFINED
t RP
t RWL
OPEN
10/12**
t CP
MIN
15
25
35
56
85
12
15
10
60
14
20
40
15
79
85
15
10
2, 4 MEG x 72
3
0
5
ROW
-6
125,000
1998, Micron Technology, Inc.
MAX
15
15
60
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns