PF38F4060M0Y3DEA Micron Technology Inc, PF38F4060M0Y3DEA Datasheet - Page 83
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PF38F4060M0Y3DEA
Manufacturer Part Number
PF38F4060M0Y3DEA
Description
Manufacturer
Micron Technology Inc
Datasheet
1.PF38F4060M0Y3DEA.pdf
(102 pages)
Specifications of PF38F4060M0Y3DEA
Operating Temperature (max)
85C
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
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Numonyx™ Wireless Flash Memory (W18)
Figure 39: Data Output Configuration with WAIT Signal Delay
Note:
14.6
14.7
November 2007
Order Number: 290701-18
Data Hold
Data Hold
1 CLK
2 CLK
WAIT shown asserted high (RCR[10]=1).
WAIT (CR.8 = 1)
WAIT (CR.8 = 0)
WAIT (CR.8 = 1)
WAIT (CR.8 = 0)
DQ
DQ
WAIT Delay (RCR[8])
The WAIT configuration bit (RCR[8]) controls WAIT signal delay behavior for all
synchronous read-array modes. Its setting depends on the system and CPU
characteristics. The WAIT can be asserted either during, or one data cycle before, a
valid output.
In synchronous linear read array (no-wrap mode RCR[3]=1) of 4-, 8-, 16-, or
continuous-word burst mode, an output delay may occur when a burst sequence
crosses its first device-row boundary (16-word boundary). If the burst start address is
4-word boundary aligned, the delay does not occur. If the start address is misaligned to
a 4-word boundary, the delay occurs once per burst-mode read sequence. The WAIT
signal informs the system of this delay.
Burst Sequence (RCR[7])
The burst sequence specifies the synchronous-burst mode data order (see
“Sequence and Burst Length” on page
either 4-, 8-, or 16-word burst length with the burst wrap bit (RCR[3]) set, or in
continuous burst mode, the device may incur an output delay when the burst sequence
crosses the first 16-word boundary. (See
word boundary description.) This depends on the starting address. If the starting
address is aligned to a 4-word boundary, there is no delay. If the starting address is the
end of a 4-word boundary, the output delay is one clock cycle less than the First Access
Latency Count; this is the worst-case delay. The delay takes place only once, and only
if the burst sequence crosses a 16-word boundary. The WAIT pin informs the system of
this delay. For timing diagrams of WAIT functionality, see these figures:
CLK [C]
•
•
•
15-0
15-0
Figure 9, “Single Synchronous Read-Array Operation Waveform” on page 32
Figure 10, “Synchronous 4-Word Burst Read Operation Waveform” on page 33
Figure 11, “WAIT Functionality for EOWL (End-of-Word Line) Condition Waveform”
on page 34
[Q]
[Q]
t
CHTL/H
84). When operating in a linear burst mode,
Figure 37, “Word Boundary” on page 80
t
t
CHQV
CHQV
Output
Valid
Output
Valid
Note 1
Note 1
Note 1
Note 1
Output
Valid
Output
Valid
Table 35,
Output
Valid
Datasheet
for
83
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