MT41J256M8JE-15E:A Micron Technology Inc, MT41J256M8JE-15E:A Datasheet - Page 135
MT41J256M8JE-15E:A
Manufacturer Part Number
MT41J256M8JE-15E:A
Description
IC DDR3 SDRAM 2GBIT 82FBGA
Manufacturer
Micron Technology Inc
Type
DDR3 SDRAMr
Specifications of MT41J256M8JE-15E:A
Format - Memory
RAM
Memory Type
DDR3 SDRAM
Memory Size
2G (256M x 8)
Speed
667MHz
Interface
Parallel
Voltage - Supply
1.425 V ~ 1.575 V
Operating Temperature
0°C ~ 95°C
Package / Case
82-FBGA
Organization
256Mx8
Address Bus
18b
Maximum Clock Rate
1.333GHz
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
Mounting
Surface Mount
Operating Temperature Classification
Commercial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MT41J256M8JE-15E:A
Manufacturer:
MICRON
Quantity:
985
Company:
Part Number:
MT41J256M8JE-15E:A
Manufacturer:
Micron Technology Inc
Quantity:
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Table 75: Burst Order
DLL RESET
Write Recovery
PDF: 09005aef826aaadc
2Gb_DDR3_SDRAM.pdf – Rev. K 04/10 EN
Length
4 chop
Burst
8
WRITE
READ/
WRITE
WRITE
READ
READ
Notes:
Column Address
DLL RESET is defined by MR0[8] (see Figure 52 (page 134)). Programming MR0[8] to 1
activates the DLL RESET function. MR0[8] is self-clearing, meaning it returns to a value
of 0 after the DLL RESET function has been initiated.
Anytime the DLL RESET function is initiated, CKE must be HIGH and the clock held
stable for 512 (
allow time for the internal clock to be synchronized with the external clock. Failing to
wait for synchronization to occur may result in invalid output timing specifications,
such as
WRITE recovery time is defined by MR0[11:9] (see Figure 52 (page 134)). Write recovery
values of 5, 6, 7, 8, 10, 12, or 14 may be used by programming MR0[11:9]. The user is
required to program the correct value of write recovery and is calculated by dividing
(A[2, 1, 0])
Starting
1. Internal READ and WRITE operations start at the same point in time for BC4 as they do
2. Z = Data and strobe output drivers are in tri-state.
3. V = A valid logic level (0 or 1), but the respective input buffer ignores level-on input pins.
4. X = “Don’t Care.”
V V V
0 V V
1 V V
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
for BL8.
t
DQSCK timings.
t
DLLK) clock cycles before a READ command can be issued. This is to
Burst Type = Sequential
0, 1, 2, 3, X, X, X, X
4, 5, 6, 7, X, X, X, X
0, 1, 2, 3, Z, Z, Z, Z
1, 2, 3, 0, Z, Z, Z, Z
2, 3, 0, 1, Z, Z, Z, Z
3, 0, 1, 2, Z, Z, Z, Z
4, 5, 6, 7, Z, Z, Z, Z
5, 6, 7, 4, Z, Z, Z, Z
6, 7, 4, 5, Z, Z, Z, Z
7, 4, 5, 6, Z, Z, Z, Z
0, 1, 2, 3, 4, 5, 6, 7
1, 2, 3, 0, 5, 6, 7, 4
2, 3, 0, 1, 6, 7, 4, 5
3, 0, 1, 2, 7, 4, 5, 6
4, 5, 6, 7, 0, 1, 2, 3
5, 6, 7, 4, 1, 2, 3, 0
6, 7, 4, 5, 2, 3, 0, 1
7, 4, 5, 6, 3, 0, 1, 2
0, 1, 2, 3, 4, 5, 6, 7
(Decimal)
135
Micron Technology, Inc. reserves the right to change products or specifications without notice.
Burst Type = Interleaved
2Gb: x4, x8, x16 DDR3 SDRAM
0, 1, 2, 3, X, X, X, X
4, 5, 6, 7, X, X, X, X
0, 1, 2, 3, Z, Z, Z, Z
1, 0, 3, 2, Z, Z, Z, Z
2, 3, 0, 1, Z, Z, Z, Z
3, 2, 1, 0, Z, Z, Z, Z
4, 5, 6, 7, Z, Z, Z, Z
5, 4, 7, 6, Z, Z, Z, Z
6, 7, 4, 5, Z, Z, Z, Z
7, 6, 5, 4, Z, Z, Z, Z
0, 1, 2, 3, 4, 5, 6, 7
1, 0, 3, 2, 5, 4, 7, 6
2, 3, 0, 1, 6, 7, 4, 5
3, 2, 1, 0, 7, 6, 5, 4
4, 5, 6, 7, 0, 1, 2, 3
5, 4, 7, 6, 1, 0, 3, 2
6, 7, 4, 5, 2, 3, 0, 1
7, 6, 5, 4, 3, 2, 1, 0
0, 1, 2, 3, 4, 5, 6, 7
(Decimal)
Mode Register 0 (MR0)
© 2006 Micron Technology, Inc. All rights reserved.
Notes
1, 3, 4
1, 3, 4
1, 2
1, 2
1, 2
1, 2
1, 2
1, 2
1, 2
1, 2
1, 3
1
1
1
1
1
1
1
1
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