Micron Confidential and Proprietary
32Gb, 64Gb, 128Gb, 256Gb Asynchronous/Synchronous NAND
Asynchronous and Synchronous Signal Descriptions
Table 1: Asynchronous and Synchronous Signal Definitions (Continued)
Asynchronous
Signal1
VCCQ
VSS
VSSQ
NC
DNU
RFU
Synchronous
Signal1
VCCQ
VSS
VSSQ
NC
DNU
RFU
Type
Supply
Supply
Supply
–
–
–
Description2
VCCQ: I/O power supply
VSS: Core ground connection
VSSQ: I/O ground connection
No connect: NCs are not internally connected. They can be driven or
left unconnected.
Do not use: DNUs must be left unconnected.
Reserved for future use: RFUs must be left unconnected.
Notes:
1. See Device and Array Organization for detailed signal connections.
2. See Bus Operation – Asynchronous Interface (page 27) and Bus Operation – Synchro-
nous Interface (page 37) for detailed asynchronous and synchronous interface signal
descriptions.
PDF: 09005aef836c9ded
Rev. F 12/09 EN
10
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