IC DDR2 SDRAM 1GBIT 92FBGA

 

MT47H128M8BT-37E:A

Manufacturer Part NumberMT47H128M8BT-37E:A
DescriptionIC DDR2 SDRAM 1GBIT 92FBGA
ManufacturerMicron Technology Inc
MT47H128M8BT-37E:A datasheets

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Specifications of MT47H128M8BT-37E:A

Format - MemoryRAMMemory TypeDDR2 SDRAM
Memory Size1G (128M x 8)Speed3.75ns
InterfaceParallelVoltage - Supply1.7 V ~ 1.9 V
Operating Temperature0°C ~ 85°CPackage / Case92-FBGA
Lead Free Status / RoHS StatusLead free / RoHS Compliant  
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Table 11: AC Operating Specifications and Conditions (Continued)
Not all speed grades listed may be supported for this device; refer to the title page for speeds supported; Notes: 1–5 apply to the entire table;
V
= +1.8V ±0.1V, V
= +1.8V ±0.1V
DDQ
DD
AC Characteristics
-187E
Parameter
Symbol
Min
Max
t
Internal READ-to-
RTP
7.5
PRECHARGE delay
t
CAS#-to-CAS#
CCD
2
delay
t
Write recovery time
WR
15
t
t
Write AP recovery
DAL
WR +
t
+ precharge time
RP
t
Internal WRITE-to-
WTR
7.5
READ delay
t
LOAD MODE cycle
MRD
2
time
t
REFRESH-
256Mb
RFC
75
to-
512Mb
105
ACTIVATE
1Gb
127.5
or to
2Gb
197.5
-REFRESH
interval
t
Average periodic
REFI
7.8
refresh
(commercial)
t
Average periodic
REFI
3.9
IT
refresh
(industrial)
t
Average periodic
REFI
3.9
AT
refresh
(automotive)
t
CKE LOW to CK,
DELAY
CK# uncertainty
-25E
-25
-3E
Min
Max
Min
Max
Min
Max
Min
7.5
7.5
7.5
7.5
2
2
2
2
15
15
15
15
t
t
t
t
WR +
WR +
WR +
WR +
t
t
t
t
RP
RP
RP
RP
7.5
7.5
7.5
7.5
2
2
2
2
75
75
75
75
105
105
105
105
127.5
127.5
127.5
127.5
197.5
197.5
197.5
197.5
7.8
7.8
7.8
3.9
3.9
3.9
3.9
3.9
3.9
t
t
t
MIN limit =
IS +
CK +
IH
MAX limit = n/a
-3
-37E
-5E
Max
Min
Max
Min
Max
Units Notes
7.5
7.5
ns
18, 37,
t
2
2
CK
15
15
ns
t
t
WR +
WR +
ns
t
t
RP
RP
7.5
10
ns
t
2
2
CK
75
75
ns
105
105
127.5
127.5
197.5
197.5
7.8
7.8
7.8
µs
3.9
3.9
3.9
µs
3.9
3.9
3.9
µs
ns
39
18
18, 37
40
18, 37
18
18, 41
18, 41
18, 41
18, 41
42