MT41J256M4JP-15E:G Micron Technology Inc, MT41J256M4JP-15E:G Datasheet - Page 155

• Manufacturer Part Number: MT41J256M4JP-15E:G
• Description: IC DDR3 SDRAM 1GBIT 78FBGA
• Manufacturer: Micron Technology Inc
• Series: -r

Specifications of MT41J256M4JP-15E:G

• Format - Memory: RAM
• Memory Type: DDR3 SDRAM
• Memory Size: 1G (256M x 4)
• Speed: 667MHz
• Interface: Parallel
• Voltage - Supply: 1.425 V ~ 1.575 V
• Operating Temperature: 0°C ~ 95°C
• Package / Case: 78-TFBGA
• Lead Free Status / RoHS Status: Supplier Unconfirmed

Figure 103: Power-Down Entry After WRITE with Auto Precharge (WRAP)
Figure 104: REFRESH to Power-Down Entry
PDF: 09005aef826aa906/Source: 09005aef82a357c3
1Gb_DDR3_4.fm - Rev. F 11/08 EN
DQS, DQS#
Command
Command
Address
DQ BL8
DQ BC4
CKE
A10
CK#
CK
CKE
CK#
CK
WRAP
Valid
T0
T0
NOP
T1
Notes:
Notes:
t CK
WL = AL + CWL
NOP
Ta0
REFRESH
1.
2. CKE can go LOW 2
1. After CKE goes HIGH during
T1
t
next integer
Ta1
NOP
t CH
WR is programmed through MR0[11:9] and represents
t REFPDEN
t CL
NOP
Ta2
DI
DI
t IS
n
n
NOP
T2
n + 1
n + 1
DI
DI
t
CK.
n + 2
n + 2
Ta3
NOP
DI
DI
t CPDED
t WRAPDEN
t
CK earlier if BC4MRS.
n + 3
n + 3
DI
DI
n + 4
Ta4
NOP
DI
NOP
T3
n + 5
DI
155
t
RFC, CKE must remain HIGH until
NOP
n + 6
Ta5
DI
t PD
n + 7
DI
Start internal
t RFC (MIN) 1
precharge
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Ta6
NOP
Ta0
NOP
Ta7
1Gb: x4, x8, x16 DDR3 SDRAM
WR 1
NOP
Ta1
Indicates A Break in
Time Scale
NOP
Tb0
t
WR (MIN)ns/
self refresh entry 2
Power-down or
Indicates A Break In
Time Scale
t IS
NOP
Tb1
t
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RFC is satisfied.
t CKE (MIN)
t XP (MIN)
t CPDED
NOP
Ta2
t
Transitioning Data
CK rounded up to the
NOP
Tb2
t PD
Operations
Tb3
Valid
Don’t Care
Tb0
Don’t Care
Tb4