MT47H128M8CF-3:H Micron Technology Inc, MT47H128M8CF-3:H Datasheet - Page 88

• Manufacturer Part Number: MT47H128M8CF-3:H
• Description: DRAM Chip DDR2 SDRAM 1G-Bit 128Mx8 1.8V 60-Pin FBGA Tray
• Manufacturer: Micron Technology Inc
• Type: DDR2 SDRAMr
• Series: -r

Specifications of MT47H128M8CF-3:H

• Density: 1 Gb
• Maximum Clock Rate: 667 MHz
• Package: 60FBGA
• Address Bus Width: 17 Bit
• Operating Supply Voltage: 1.8 V
• Maximum Random Access Time: 0.45 ns
• Operating Temperature: 0 to 85 °C
• Organization: 128Mx8
• Address Bus: 17b
• Access Time (max): 450ps
• 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: 115mA
• Pin Count: 60
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Format - Memory: RAM
• Memory Type: DDR2 SDRAM
• Memory Size: 1G (128M x 8)
• Speed: 3ns
• Interface: Parallel
• Voltage - Supply: 1.7 V ~ 1.9 V
• Package / Case: 60-TFBGA
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Initialization
Figure 42: DDR2 Power-Up and Initialization
DDR2 SDRAM must be powered up and initialized in a predefined manner. Operational procedures other than those specified may result in unde-
fined operation. Figure 42 illustrates, and the notes outline, the sequence required for power-up and initialization.
Command
Address
DQS
DM
DQ
V
V
V
ODT
V
V
CK#
CKE
DDQ
DDL
R
TT
CK
REF
DD
15
16
15
15
tt
1
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
LM 13
Code
Tl0
t MRD
operation
Don’t care
Normal
Valid 14
Valid
Tm0