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參數(shù)資料
| 型號(hào)： | S29PL064J |
| 廠商： | Spansion Inc. |
| 英文描述： | CMOS 3.0 Volt-only, Simultaneous Read/Write Flash Memory with Enhanced VersatileIO Control |
| 中文描述： | 3.0伏的CMOS只，同步讀/寫閃存與增強(qiáng)VersatileIO控制記憶 |
| 文件頁數(shù)： | 78/106頁 |
| 文件大?。?/td> | 1997K |
| 代理商： | S29PL064J |
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S29PL127J/S29PL129J/S29PL064J/S29PL032J
31107A62 April 7, 2005
P R E L I M I N A R Y
RY/BY#: Ready/Busy#
The RY/BY# is a dedicated, open-drain output pin which indicates whether an
Embedded Algorithm is in progress or complete. The RY/BY# status is valid after
the rising edge of the final WE# pulse in the command sequence. Since RY/BY#
is an open-drain output, several RY/BY# pins can be tied together in parallel with
a pull-up resistor to V
CC
.
If the output is low (Busy), the device is actively erasing or programming. (This
includes programming in the Erase Suspend mode.) If the output is high (Ready),
the device is in the read mode, the standby mode, or one of the banks is in the
erase-suspend-read mode.
Table 23
shows the outputs for RY/BY#.
DQ6: Toggle Bit I
Toggle Bit I on DQ6 indicates whether an Embedded Program or Erase algorithm
is in progress or complete, or whether the device has entered the Erase Suspend
mode. Toggle Bit I may be read at any address, and is valid after the rising edge
of the final WE# pulse in the command sequence (prior to the program or erase
operation), and during the sector erase time-out.
During an Embedded Program or Erase algorithm operation, successive read cy-
cles to any address cause DQ6 to toggle. The system may use either OE# or CE#
to control the read cycles. When the operation is complete, DQ6 stops toggling.
After an erase command sequence is written, if all sectors selected for erasing
are protected, DQ6 toggles for approximately 400 μs, then returns to reading
array data. If not all selected sectors are protected, the Embedded Erase algo-
rithm erases the unprotected sectors, and ignores the selected sectors that are
protected.
The system can use DQ6 and DQ2 together to determine whether a sector is ac-
tively erasing or is erase-suspended. When the device is actively erasing (that is,
the Embedded Erase algorithm is in progress), DQ6 toggles. When the device en-
ters the Erase Suspend mode, DQ6 stops toggling. However, the system must
also use DQ2 to determine which sectors are erasing or erase-suspended. Alter-
natively, the system can use DQ7 (see the "
DQ7: Data# Polling
" section).
If a program address falls within a protected sector, DQ6 toggles for approxi-
mately 1 μs after the program command sequence is written, then returns to
reading array data.
DQ6 also toggles during the erase-suspend-program mode, and stops toggling
once the Embedded Program algorithm is complete.
Table 23
shows the outputs for Toggle Bit I on DQ6.
Figure 7
shows the toggle bit
algorithm.
Figure 19
in
“Read Operation Timings”
shows the toggle bit timing di-
agrams.
Figure 20
shows the differences between DQ2 and DQ6 in graphical
form. See also the "
DQ2: Toggle Bit II
" section.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S29PL064J55BFI120 | 功能描述:閃存 64Mb 3V 55ns Parallel NOR 閃存 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| S29PL064J60BAI120 | 制造商:Spansion 功能描述:FLASH MEM PARALLEL 2.7V TO 3.6V 64M-BIT 4M X 16 60NS 48-PIN - Trays |
| S29PL064J60BFI120 | 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 64MBIT 4MX16 60NS 48FBGA - Trays |
| S29PL064J60BFI120(E) | 制造商:Spansion 功能描述:Cut Tape |
| S29PL064J60BFW120 | 制造商:Spansion 功能描述:64M (4MX16) 3V, PAGE MODE, HAZMAT - Trays |
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