256Mb: x4, x8, x16 SDRAM
Features
List of Tables
Table 1: Key Timing Parameters ....................................................................................................................... 1
Table 2: Address Table ..................................................................................................................................... 2
Table 3: 256Mb SDR Part Numbering ............................................................................................................... 2
Table 4: Pin and Ball Descriptions .................................................................................................................. 14
Table 5: Temperature Limits .......................................................................................................................... 19
Table 6: Thermal Impedance Simulated Values ............................................................................................... 20
Table 7: Absolute Maximum Ratings .............................................................................................................. 23
Table 8: DC Electrical Characteristics and Operating Conditions ..................................................................... 23
Table 9: Capacitance ..................................................................................................................................... 24
Table 10: IDD Specifications and Conditions (x4, x8, x16) Revision D ................................................................ 25
Table 11: IDD Specifications and Conditions (x4, x8, x16) Revision G ................................................................ 25
Table 12: Electrical Characteristics and Recommended AC Operating Conditions ............................................ 27
Table 13: AC Functional Characteristics ......................................................................................................... 28
Table 14: Truth Table – Commands and DQM Operation ................................................................................. 31
Table 15: Truth Table – Current State Bank n, Command to Bank n .................................................................. 37
Table 16: Truth Table – Current State Bank n, Command to Bank m ................................................................. 39
Table 17: Truth Table – CKE ........................................................................................................................... 41
Table 18: Burst Definition Table ..................................................................................................................... 47
PDF: 09005aef8091e6d1
256Mb_sdr.pdf - Rev. R 10/12 EN
Micron Technology, Inc. reserves the right to change products or specifications without notice.
6
© 1999 Micron Technology, Inc. All rights reserved.
MICRON [ MICRON TECHNOLOGY ]
