MT41J256M8HX-15E:D Micron Technology Inc, MT41J256M8HX-15E:D Datasheet - Page 22

• Manufacturer Part Number: MT41J256M8HX-15E:D
• Description: MICMT41J256M8HX-15E:D 2GB:X4,X8,X16 DDR3
• Manufacturer: Micron Technology Inc
• Type: DDR3 SDRAMr
• Series: -r

Specifications of MT41J256M8HX-15E:D

• 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
• Supply Current: 165mA
• Pin Count: 78
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• 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: 78-TFBGA
• Lead Free Status / RoHS Status: Compliant

Table 5:
PDF: 09005aef826aaadc/Source: 09005aef82a357c3
DDR3_D2.fm - Rev G 2/09 EN
Ball Assignments
N3, P7, P3, N2,
P8, P2, R8, R2,
M2, N8, M3
J3, K3, L3
T8, R3,
R7, N7
J7, K7
L7,
T3
K9
E7
K1
L2
96-Ball FBGA – x16 Ball Descriptions
RAS#, CAS#, WE#
A0, A1, A2, A3,
A4, A5, A6, A7,
BA0, BA1, BA2
A11, A12/BC#,
Symbol
CK, CK#
A10/AP,
A8, A9
LDM
ODT
A13
CKE
CS#
Input
Input
Input
Input
Input
Input
Input
Input
Type
Description
Address inputs: Provide the row address for ACTIVATE commands,
and the column address and auto precharge bit (A10) for READ/
WRITE commands, to select one location out of the memory array in
the respective bank. A10 sampled during a PRECHARGE command
determines whether the PRECHARGE applies to one bank (A10 LOW,
bank selected by BA[2:0]) or all banks (A10 HIGH). The address inputs
also provide the op-code during a LOAD MODE command. Address
inputs are referenced to V
mode register (MR), A12 is sampled during READ and WRITE
commands to determine whether burst chop (on-the-fly) will be
performed (HIGH = BL8 or no burst chop, LOW = BC4 burst chop). See
Table 65 on page 93.
Bank address inputs: BA[2:0] define the bank to which an
ACTIVATE, READ, WRITE, or PRECHARGE command is being applied.
BA[2:0] define which mode register (MR0, MR1, MR2, or MR3) is
loaded during the LOAD MODE command. BA[2:0] are referenced to
V
Clock: CK and CK# are differential clock inputs. All control and
address input signals are sampled on the crossing of the positive
edge of CK and the negative edge of CK#. Output data strobe (DQS,
DQS#) is referenced to the crossings of CK and CK#.
Clock enable: CKE enables (registered HIGH) and disables
(registered LOW) internal circuitry and clocks on the DRAM. The
specific circuitry that is enabled/disabled is dependent upon the
DDR3 SDRAM configuration and operating mode. Taking CKE LOW
provides PRECHARGE power-down and SELF REFRESH operations (all
banks idle),or active power-down (row active in any bank). CKE is
synchronous for power-down entry and exit and for self refresh
entry. CKE is asynchronous for self refresh exit. Input buffers
(excluding CK, CK#, CKE, RESET#, and ODT) are disabled during
power-down. Input buffers (excluding CKE and RESET#) are disabled
during SELF REFRESH. CKE is referenced to V
Chip select: CS# enables (registered LOW) and disables (registered
HIGH) the command decoder. All commands are masked when CS# is
registered HIGH. CS# provides for external rank selection on systems
with multiple ranks. CS# is considered part of the command code.
CS# is referenced to V
Input data mask: LDM is a lower-byte, input mask signal for write
data. Lower-byte input data is masked when LDM is sampled HIGH
along with the input data during a write access. Although the LDM
ball is input-only, the LDM loading is designed to match that of the
DQ and DQS balls. LDM is referenced to V
On-die termination: ODT enables (registered HIGH) and disables
(registered LOW) termination resistance internal to the DDR3
SDRAM. When enabled in normal operation, ODT is only applied to
each of the following balls: DQ[15:0], LDQS, LDQS#, UDQS, UDQS#,
LDM, and UDM for the x16; DQ0[7:0], DQS, DQS#, DM/TDQS, and NF/
TDQS# (when TDQS is enabled) for the x8; DQ[3:0], DQS, DQS#, and
DM for the x4. The ODT input is ignored if disabled via the LOAD
MODE command. ODT is referenced to V
Command inputs: RAS#, CAS#, and WE# (along with CS#) define
the command being entered and are referenced to V
REF
CA.
22
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Ball Assignments and Descriptions
REF
CA.
REF
2Gb: x4, x8, x16 DDR3 SDRAM
CA. A12/BC#: When enabled in the
REF
©2006 Micron Technology, Inc. All rights reserved.
REF
CA.
REF
DQ.
CA.
REF
CA.