MT41J256M8JE-187E ES:A Micron Technology Inc, MT41J256M8JE-187E ES:A Datasheet - Page 109

• Manufacturer Part Number: MT41J256M8JE-187E ES:A
• Manufacturer: Micron Technology Inc
• Type: DDR3 SDRAMr

Specifications of MT41J256M8JE-187E ES:A

• Organization: 256Mx8
• Address Bus: 15b
• Maximum Clock Rate: 1.066GHz
• Operating Supply Voltage (typ): 1.5V
• Package Type: FBGA
• Operating Temp Range: 0C to 95C
• Operating Supply Voltage (max): 1.575V
• Operating Supply Voltage (min): 1.425V
• Supply Current: 295mA
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Compliant

Figure 48: Initialization Sequence
PDF: 09005aef826aaadc/Source: 09005aef82a357c3
DDR3_D4.fm - Rev G 2/09 EN
V
V
DD
V
V
REF
DD
TT
Q
Power-up
ramp
T (MAX) = 200ms
Command
Address
sequence text,
RESET#
BA[2:0]
See power-up
initialization
conditions
ODT
set up 1
DQS
All voltage
supplies valid
and stable
CK#
CKE
A10
DM
in the
DQ
CK
R
t IO z
TT
= 20ns
T = 200µs (MIN)
T (MIN) = 10ns
t VTD
Stable and
valid clock
T = 500µs (MIN)
t CKSRX
DRAM ready for
external commands
t IS
t IS
NOP
T0
t CL
t XPR
t CK
t CL
BA0 = L
BA1 = H
BA2 = L
Code
Code
MR2
MRS
109
T1
t MRD
BA0 = H
BA1 = H
BA2 = L
Code
Code
MR3
MRS
Micron Technology, Inc., reserves the right to change products or specifications without notice.
t MRD
DLL enable
MR1 with
BA0 = H
BA1 = L
BA2 = L
Code
Code
Ta0
MRS
2Gb: x4, x8, x16 DDR3 SDRAM
t MRD
MR0 with
DLL reset
BA0 = L
BA1 = L
BA2 = L
Tb0
Code
Code
MRS
Indicates a Break in
Time Scale
t MOD
©2006 Micron Technology, Inc. All rights reserved.
ZQ calibration
t DLLK
A10 = H
Tc0
ZQCL
t ZQ
Operations
INIT
operation
Normal
Valid
Td0
Valid
Valid
Valid
Valid
Valid
Don’t Care