RF38F001000YBQ0 NUMONYX [Numonyx B.V], RF38F001000YBQ0 Datasheet - Page 37

• Manufacturer Part Number: RF38F001000YBQ0
• Description: Wireless Flash Memory (W18/W30 SCSP)
• Manufacturer: NUMONYX [Numonyx B.V]

32WQ and 64WQ Family with Asynchronous RAM
17.2
Caution:
Figure 15: Timing Waveform for Entering Deep Power-Down Mode
17.3
Caution:
Table 19: PSRAM Special Read Constraints
November 2007
Order Number: 251407-13
Cannot have sub t
either a read operation or P-CS# high for t
P-CS# high level pulse width
R-UB#/R-LB# high level pulse width
R-OE# high level pulse width in active mode (P-CS# low)
P-CS# low to R-OE# low
Address Skew time (unstable address with P-CS# low)
Notes:
1.
2.
a. When switching P-CS# from high to low, t
b. When switching P-CS# from low to high, t
c. When P-CS# is fixed to low, t
Toggling of these control signals is not necessary during address controlled read operations.
Address skew time (t
determined.
point.
Since specs are defined for t
limitations when P-CS# is switched from high to low following address determination, or
when the address is changed after P-CS# is switched from low to high.
Deep Power-Down
Device Mode
Standby
P-MODE
Standby Mode/ Deep Power-Down Mode
All line items that do not have the P-Mode pine will not have the deep power-
down feature (38F1030W0YxQ2, 38F1030W0ZxQ0, 38F2030W0YxQ1,
38F2030W0YxQ2, 38F2030W0YxQF, 38F2030W0ZxQ2, 38F2040W0ZxQ0).
Data is lost during deep power-down mode as shown in the Table below. Wake-up from
deep power-down mode involves the same initialization sequence as discussed in
Section 17.1, “Power-Up Sequence and Initialization” on page
PSRAM Special Read and Write Constraints
This section will not apply to line items that do not have the P-Mode pine will
not have the deep power-down feature (38F1030W0YxQ2, 38F1030W0ZxQ0,
38F2030W0YxQ1, 38F2030W0YxQ2, 38F2030W0YxQF, 38F2030W0ZxQ2,
38F2040W0ZxQ0).
Mode
RC
P-CS#
address toggle for more than 4 μs in active mode. Need
SKEW
Description
) indicates the following three types of time depending on the condition.
SKEW
RC
is the time from the address start point until the next address is determined.
in that time frame
SKEW
Suspend Mode
SKEW
SKEW
only when P-CS# is active, t
Memory Cell Data
1 us
is the time from the address change start point to the P-CS# high input
is the time from the P-CS# low input point until the next address is
Invalid
Valid
Deep Power Down Mode
Deep Power Down Mode
Min
N/A
10
10
10
–
–
SKEW
10,000
10,000
Delay time to go Active
Max
N/A
10
–
–
is not subject to
36.
Start-Up Sequence
0 ns
Unit
ns
ns
ns
ns
ns
–
Datasheet
Notes
1
1
2
37