32WQ and 64WQ Family with Asynchronous RAM
RFU
SCSP
SR
SRD
Word
WSM
Reserved for Future Use
Stacked Chip Scale Package
Status Register
Status Register Data
16 bits
Write State Machine
1.2
Conventions
Group Membership Brackets: Square brackets are used to designate group membership
or to define a group of signals with a similar function, such as A[21:1] and SR[4,1].
VCC vs. V
CC
: When referring to a signal or package-connection name, the notation
used is VCC, etc. When referring to a timing or electrical level, the notation used is
subscripted such as V
CC
, etc.
Device:
This term is used interchangeably throughout this document to denote either a
particular die, or the combination of multiple die within a single package.
F[3:1]-CE#, F[2:1]-OE#:
This is the method used to refer to more than one chip-
enable or output enable at the same time. When each is referred to individually, the
reference will be F1-CE# and F1-OE# (for die #1), and F2-CE# and F2-OE# (for die
#2).
F-VCC, P-VCC or S-VCC:
When referencing flash memory signals or timings, the
notation used is F-VCC or F-V
CC,
respectively. When the reference is to PSRAM signals
or timings, the notation is prefixed with “P-” (e.g., P-VCC, P-V
CC
). When referencing
SRAM signals or timings, the notation is prefixed with “S-” (e.g., S-VCC or S-V
CC
). P-
VCC and S-VCC are RFU for stacked combinations that do not include PSRAM or SRAM.
R-OE#, R-LB#, R-UB#, R-WE#:
These are used to identify RAM OE#, LB#, UB#,
WE# signals, and are usually shared between 2 or more RAM die. R-OE#, R-LB#, R-
UB# and R-WE are RFU for stacked combinations that do not include PSRAM or SRAM.
November 2007
Order Number: 251407-13
Datasheet
7
NUMONYX [ NUMONYX B.V ]
