PRELIMINARY
256Mb: x32
SDRAM
PIN DESCRIPTIONS (continued)
PIN NUMBERS
14, 30, 57, 69, 70, 73
3, 9, 35, 41, 49, 55,
75, 81
6, 12, 32, 38, 46, 52,
78, 84
1, 15, 29, 43
44, 58, 72, 86
SYMBOL TYPE
NC
–
V
DD
Q
V
SS
Q
V
DD
V
SS
Supply
Supply
Supply
Supply
DESCRIPTION
No Connect: These pins should be left unconnected. Pin 70 is
reserved for SSTL reference voltage supply.
DQ Power Supply: Isolated on the die for improved noise
immunity.
DQ Ground: Provide isolated ground to DQs for improved noise
immunity.
Power Supply: +3.3V ±0.3V.
Ground.
09005aef80cd8e48
256MbSDRAMx32.p65 – Rev. B; Pub. 03/04
7
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2003 Micron Technology, Inc.
MICRON [ MICRON TECHNOLOGY ]
