MT47H256M4HQ-187E:E TR Micron Technology Inc, MT47H256M4HQ-187E:E TR Datasheet - Page 32
MT47H256M4HQ-187E:E TR
Manufacturer Part Number
MT47H256M4HQ-187E:E TR
Description
IC DDR2 SDRAM 1GBIT 60VFBGA
Manufacturer
Micron Technology Inc
Type
DDR2 SDRAMr
Specifications of MT47H256M4HQ-187E:E TR
Format - Memory
RAM
Memory Type
DDR2 SDRAM
Memory Size
1G (256M x 4)
Speed
1.875ns
Interface
Parallel
Voltage - Supply
1.7 V ~ 1.9 V
Operating Temperature
0°C ~ 85°C
Package / Case
60-FBGA
Organization
256Mx4
Density
1Gb
Address Bus
17b
Access Time (max)
350ps
Maximum Clock Rate
1.066GHz
Operating Supply Voltage (typ)
1.8V
Package Type
FBGA
Operating Temp Range
0C to 85C
Operating Supply Voltage (max)
1.9V
Operating Supply Voltage (min)
1.7V
Supply Current
190mA
Pin Count
60
Mounting
Surface Mount
Operating Temperature Classification
Commercial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
557-1426-2
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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
DDQ
DQS output access
time from CK/CK#
DQS read preamble
DQS read
postamble
CK/CK# to DQS
Low-Z
DQS rising edge to
CK rising edge
DQS input-high
pulse width
DQS input-low
pulse width
DQS falling to CK
rising: setup time
DQS falling from
CK rising:
hold time
Write preamble
setup time
DQS write
preamble
DQS write
postamble
WRITE command
to first DQS
transition
= +1.8V ±0.1V, V
Parameter
AC Characteristics
DD
Symbol
t
t
DQSCK
t
WPRES
t
t
= +1.8V ±0.1V
t
t
t
t
DQSH
WPRE
t
WPST
DQSS
DQSL
RPRE
RPST
t
t
DSH
DSS
LZ
–
1
–300
Min
-187E
Max
+300
–350
Min
-25E
Max
+350
–350 +350
Min
-25
Max
MAX = WL +
MAX = +0.25 ×
MAX =
MIN = –0.25 ×
MIN = WL -
MIN =
MIN = 0.35 ×
MIN = 0.35 ×
MIN = 0.35 ×
MAX = 1.1 ×
MAX = 0.6 ×
MAX = 0.6 ×
MIN = 0.9 ×
MIN = 0.4 ×
MIN = 0.2 ×
MIN = 0.2 ×
MIN = 0.4 ×
MAX = n/a
MAX = n/a
MAX = n/a
MAX = n/a
MAX = n/a
MAX = n/a
–400
Min
MIN = 0
t
t
-3E
AC (MIN)
AC (MAX)
Max
+400
t
DQSS
t
DQSS
t
t
t
t
t
t
t
t
CK
CK
t
t
CK
CK
t
CK
CK
CK
CK
t
CK
CK
CK
CK
t
CK
–400
Min
-3
Max
+400
–450
Min
-37E
Max
+450
–500
Min
-5E
+500
Max
Units Notes
t
t
t
t
t
t
t
t
t
t
ps
CK
CK
ps
CK
CK
CK
CK
CK
ps
CK
CK
CK
17, 18,
17, 18,
19, 21,
19, 20
23, 24
18, 25
19
19
22
18
18
18
18
18
18
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