參數(shù)資料
型號: S25FL064A0LNAI00
廠商: SPANSION LLC
元件分類: PROM
英文描述: 64M X 1 FLASH 3V PROM, PDSO16
封裝: 0.300 INCH, PLASTIC, MS-013AA, SOP-16
文件頁數(shù): 5/36頁
文件大?。?/td> 1495K
代理商: S25FL064A0LNAI00
14
S25FL064A
S25FL064A_00_C3 June 29, 2007
Da ta
Sh e e t
7.7
Hold Mode (HOLD#)
The Hold input (HOLD#) stops any serial communication with the device, but does not terminate any Write
Status Register, program or erase operation that is currently in progress.
The Hold mode starts on the falling edge of HOLD# if SCK is also low (see Figure 7.1, standard use). If the
falling edge of HOLD# does not occur while SCK is low, the Hold mode begins after the next falling edge of
SCK (non-standard use).
The Hold mode ends on the rising edge of HOLD# signal (standard use) if SCK is also low. If the rising edge
of HOLD# does not occur while SCK is low, the Hold mode ends on the next falling edge of CLK (non-
standard use) See Figure 7.1.
The SO output is high impedance, and the SI and SCK inputs are ignored (don’t care) for the duration of the
Hold mode.
CS# must remain low for the entire duration of the Hold mode to ensure that the device internal logic remains
unchanged. If CS# goes high while the device is in the Hold mode, the internal logic is reset. To prevent the
device from reverting to the Hold mode when device communication is resumed, HOLD# must be held high,
followed by driving CS# low.
Figure 7.1 Hold Mode Operation
8.
Sector Address Table
Table 8.1 shows the size of the memory array, sectors, and pages. The device uses pages to cache the
program data before the data is programmed into the memory array. Each page or byte can be individually
programmed (bits are changed from 1 to 0). The data is erased (bits are changed from 0 to 1) on a sector- or
device-wide basis using the SE or BE commands. Table 8.2 on page 15 shows the starting and ending
address for each sector. The complete set of sectors comprises the memory array of the Flash device.
SCK
HOLD#
Hold
Condition
(standard use)
Hold
Condition
(non-standard use)
Table 8.1 S25FL064A Device Organization
Each Device has
Each Sector has
Each Page has
8,388,608
65,536
256
bytes
32,768
256
pages
128
sectors
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