PF38F2030W0YTQ2 Micron Technology Inc, PF38F2030W0YTQ2 Datasheet - Page 46
PF38F2030W0YTQ2
Manufacturer Part Number
PF38F2030W0YTQ2
Description
Manufacturer
Micron Technology Inc
Datasheet
1.PF38F2030W0YTQ2.pdf
(54 pages)
Specifications of PF38F2030W0YTQ2
Operating Temperature (max)
85C
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
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Figure 28: PSRAM Loading Configurations Registers Using Software Access
Figure 29: PSRAM Reading Registers Using Software Access
9.4.3
Datasheet
46
UB#/LB#
UB#/LB#
DQ[15:0]
DQ[15:0]
A[MAX:0]
A[MAX:0]
WE#
WE#
CE#
OE#
CE#
OE#
Cautionary Note About Software Register Access
To insure inadvertent access to the PSRAM registers during asynchronous operation,
the following two command sequences must be avoided when accessing the main
memory array. On the 3rd cycle of these command sequences, a write operation to the
main memory may be blocked and the software register access mode is accessible. To
prevent this, the two command sequences must be avoided except to access the
registers through the software method.
• To insure predictable device behavior, the fourth access cycle of the software access
should not be terminated or interrupted prematurely and ADV# should not go low
more than one time during each access where CE# is low
XXXXh
XXXXh
MAX
MAX
XXXXh
XXXXh
MAX
MAX
RCR: 0000h
BCR: 0001h
RCR: 0000h
BCR: 0001h
DIDR: 0002h
128-Mbit W18 Family with Synchronous PSRAM
MAX
MAX
Order Number: 311760-10
Output
Input
MAX
MAX
November 2007
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