參數(shù)資料
型號(hào)： PF38F3050L0YUQ3A
廠商： INTEL CORP
元件分類： 存儲(chǔ)器
英文描述： SPECIALTY MEMORY CIRCUIT, PBGA88
封裝： 8 X 10 MM, 1.20 MM HEIGHT, ROHS COMPLIANT, SCSP-88
文件頁數(shù)： 63/70頁
文件大?。?/td> 1193K
代理商： PF38F3050L0YUQ3A
768-Mbit LQ Family with Synchronous PSRAM
Intel StrataFlash Wireless Memory (L18 SCSP)
Datasheet
August 2006
66
Order Number: 314476-001
768-Mbit LQ Family with Synchronous PSRAM
12.5.3
PSRAM Burst Termination
A burst access is terminated by bringing CE# high and maintaining high for minimum of
tCBPH.
In burst mode a refresh opportunity must be provided every tCSL period by
maintaining CE# high for minimum of 15ns or maintaining CE# high during a clock low
to high transition.
12.6
PSRAM Row Boundary Crossing
Row boundary crossings are not allowed in burst mode (regardless of using variable or
fixed latency mode.) An on-going burst must be terminated by the system prior to a
row boundary crossing. A row boundary crossing would never occur if the PSRAM is
operating in fixed burst length and wrap mode. Therefore the only time the system
should be concerned with row boundary crossing is if the PSRAM is operating with “no
wrap” (BCR3 = 0b) or “continuous burst length” (BCR[2:0] = 111b) settings.
In terminating bursts prior to row boundary crossing, the system may read the row size
(128 or 256 words) to determine at which addresses the row boundary crossing occurs.
If the system cannot do this, then it should be assumed that the row size is 128 words.
In the case of 128-word row size the boundary between adjacent rows occurs at every
address ending in 7Fh (111 1111 b.) In the case of 256-word row size the boundary
between adjacent rows occurs at every address ending in FFh (1111 1111 b.)
At a Row boundary crossing, a burst interrupt or termination must occur no later than
2-clock cycle past the transaction representing the last word of a row.
Figure 36. Example of PSRAM Burst Interrupt
CLK
Control
ADV#
DQ
Burst Init
No-OP
Burst Init
Code 3
Earliest allowed
burst interrupt
Read becomes high-Z
Write data is masked
tHD
tWHZ
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PF38F3050M0Y0CE0 制造商:Micron Technology Inc 功能描述:WIRELESS - Trays
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PF38F3050M0Y0CEB 制造商:Micron Technology Inc 功能描述:8MX16/4MX16 MCP PLASTIC PBF TFBGA 1.8V COMBO - Tape and Reel
PF38F3050M0Y0CEB TR 制造商:Micron Technology Inc 功能描述:IC FLASH 192M
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