MT47H256M4HQ-3 IT:E TR Micron Technology Inc, MT47H256M4HQ-3 IT:E TR Datasheet - Page 89
MT47H256M4HQ-3 IT:E TR
Manufacturer Part Number
MT47H256M4HQ-3 IT:E TR
Description
Manufacturer
Micron Technology Inc
Type
DDR2 SDRAMr
Datasheet
1.MT47H256M4HQ-3_ITE_TR.pdf
(135 pages)
Specifications of MT47H256M4HQ-3 IT:E TR
Organization
256Mx4
Density
1Gb
Address Bus
17b
Access Time (max)
450ps
Maximum Clock Rate
667MHz
Operating Supply Voltage (typ)
1.8V
Package Type
FBGA
Operating Temp Range
-40C to 85C
Operating Supply Voltage (max)
1.9V
Operating Supply Voltage (min)
1.7V
Supply Current
120mA
Pin Count
60
Mounting
Surface Mount
Operating Temperature Classification
Industrial
Lead Free Status / Rohs Status
Compliant
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Figure 41: DDR2 Power-Up and Initialization
Command
Address
DQS
DM
DQ
V
V
V
ODT
V
dd
CK#
CKE
V
dd
R
tt
CK
ref
dd
15
16
15
15
tt
Q
1
L
low level 2
LVCMOS
High-Z
High-Z
High-Z
t
VTD 1
T0
t CL
V
clock (CK, CK#)
low level
T = 200µs (MIN) 3
Power-up:
SSTL_18
dd
t CK
and stable
t CL
2
NOP 3
Ta0
T = 400ns (MIN) 4
A10 = 1
Tb0
PRE
t RPA
EMR(2)
LM 5
Code
Tc0
t MRD
EMR(3)
Code
LM 6
Td0
t MRD
Code
LM 7
EMR
Te0
t MRD
DLL RESET
MR with
Code
LM 8
Tf0
t MRD
A10 = 1
PRE 9
Tg0
t RPA
200 cycles of CK are required before a READ command can be issued
REF 10
Th0
t RFC
See no te 10
REF 10
Ti0
t RFC
MR without
DLL RESET
LM 11
Code
Tj0
t MRD
OCD default
EMR with
LM 12
Code
Tk0
Indicates a Break in
Time Scale
t MRD
EMR with
OCD exit
Code
LM 13
Tl0
t MRD
operation
Normal
Don’t care
Valid 14
Valid
Tm0
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