參數(shù)資料
型號: S71PL191HB0BFI100
廠商: SPANSION LLC
元件分類: 存儲器
英文描述: SPECIALTY MEMORY CIRCUIT, PBGA73
封裝: 9 X 13 MM, LEAD FREE, FBGA-73
文件頁數(shù): 92/172頁
文件大小: 4662K
代理商: S71PL191HB0BFI100
10
S29PL127H/S29PL129H
S29PL127H_129H_00A1 May 7, 2004
Pr el i m i n ary
access time is the delay from the falling edge of the OE# to valid data at the out-
put inputs (assuming the addresses have been stable for at least tACC–tOE time).
Page Mode Read
The device is capable of fast page mode read and is compatible with the page
mode Mask ROM read operation. This mode provides faster read access speed for
random locations within a page. Address bits Amax–A3 select an 8 word page,
and address bits A2–A0 select a specific word within that page. This is an asyn-
chronous operation with the microprocessor supplying the specific word location.
The random or initial page access is tACC or tCE and subsequent page read ac-
cesses (as long as the locations specified by the microprocessor falls within that
page) is equivalent to tPACC. When CE# is deasserted (CE#=VIH), the reassertion
of CE# for subsequent access has access time of tACC or tCE. Here again, CE#
selects the device and OE# is the output control and should be used to gate data
to the output inputs if the device is selected. Fast page mode accesses are ob-
tained by keeping Amax–A3 constant and changing A2–A0 to select the specific
word within that page.
Table 2. Page Select
Simultaneous Operation
In addition to the conventional features (read, program, erase-suspend read, and
erase-suspend program), the device is capable of reading data from one bank of
memory while a program or erase operation is in progress in another bank of
memory (simultaneous operation). The bank can be selected by bank addresses
(Amax–A20) with zero latency.
The simultaneous operation can execute multi-function mode in the same bank.
Word
A2
A1
A0
Word 0
0
Word 1
0
1
Word 2
0
1
0
Word 3
0
1
Word 4
1
0
Word 5
1
0
1
Word 6
1
0
Word 7
1
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