MT41J64M16JT-15E AIT:G Micron, MT41J64M16JT-15E AIT:G Datasheet - Page 21

• Manufacturer Part Number: MT41J64M16JT-15E AIT:G
• Description: DRAM Chip DDR3 SDRAM 1G-Bit 64Mx16 1.5V 96-Pin FBGA
• Manufacturer: Micron

Table 4: 96-Ball FBGA – x16 Ball Descriptions (Continued)
PDF: 09005aef84491df3
1Gb_AIT_AAT_DDR3_SDRAM.pdf – Rev. C 8/11 EN
DQ13, DQ14, DQ15
DQ8, DQ9, DQ10,
DQ0, DQ1, DQ2,
DQ3, DQ4, DQ5,
UDQS, UDQS#
DQ11, DQ12,
LDQS, LDQS#
DQ6, DQ7
Symbol
V
V
UDM
V
V
V
REFDQ
REFCA
V
ZQ
NC
DDQ
SSQ
DD
SS
Reference
Supply
Supply
Supply
Supply
Supply
Supply
Input
Type
I/O
I/O
I/O
I/O
–
Description
Input data mask: UDM is an upper-byte, input mask signal for write data. Upper-
byte input data is masked when UDM is sampled HIGH along with that input data
during a WRITE access. Although the UDM ball is input-only, the UDM loading is
designed to match that of the DQ and DQS balls. UDM is referenced to V
Data input/output: Lower byte of bidirectional data bus for the x16 configuration.
DQ[7:0] are referenced to V
Data input/output: Upper byte of bidirectional data bus for the x16 configuration.
DQ[15:8] are referenced to V
Lower byte data strobe: Output with read data. Edge-aligned with read data.
Input with write data. Center-aligned to write data.
Upper byte data strobe: Output with read data. Edge-aligned with read data.
Input with write data. DQS is center-aligned to write data.
Power supply: 1.5V ±0.075V.
DQ power supply: 1.5V ±0.075V. Isolated on the device for improved noise immuni-
ty.
Reference voltage for control, command, and address: V
maintained at all times (including self refresh) for proper device operation.
Reference voltage for data: V
refresh) for proper device operation.
Ground.
DQ ground: Isolated on the device for improved noise immunity.
External reference ball for output drive calibration: This ball is tied to an
external 240 resistor (RZQ), which is tied to V
No connect: These balls should be left unconnected (the ball has no connection to
the DRAM or to other balls).
21
REFDQ
REFDQ
1Gb: x8, x16 Automotive DDR3 SDRAM
REFDQ
.
.
Micron Technology, Inc. reserves the right to change products or specifications without notice.
Ball Assignments and Descriptions
must be maintained at all times (excluding self
SSQ
.
‹ 2010 Micron Technology, Inc. All rights reserved.
REFCA
must be
REFDQ
.