MT41J512M8 Micron Semiconductor Products, MT41J512M8 Datasheet - Page 6

• Manufacturer Part Number: MT41J512M8
• Description: Twindietm Ddr3 Sdram Mt41j1g4 ? 64 Meg X 4 X 8 Banks X 2 Ranks Mt41j512m8 ? 32 Meg X 8 X 8 Banks X 2 Ranks
• Manufacturer: Micron Semiconductor Products

Table 3:
PDF: 09005aef83188bab/Source: 09005aef83169de6
MT41J1G4_64M_32M_twindie.fm - Rev. F 11/09 EN
Symbol
ZQ[1:0]
V
V
V
V
REFDQ
REFCA
V
NC
NF
DDQ
SSQ
SS
82-Ball and 78-Ball FBGA Ball Descriptions (continued)
Reference External reference ball for output drive calibration: This ball is tied to an external
Supply
Supply
Supply
Supply
Supply
Type
–
–
Description
DQ power supply: 1.5V ±0.075V. Isolated on the device for improved noise immunity.
Reference voltage for control, command, and address: V
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.
240Ω 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).
No function: When configured as a x4 device, these balls are NF. When configured as a x8
device, these balls are defined as TDQS#, DQ[7:4].
6
REFDQ
SSQ
must be maintained at all times (including self
Micron Technology, Inc., reserves the right to change products or specifications without notice.
.
Ball Assignments and Descriptions
4Gb: x4, x8 TwinDie DDR3 SDRAM
REFCA
©2008 Micron Technology, Inc. All rights reserved.
must be maintained at