最新免费av在线观看,亚洲综合一区成人在线,中文字幕精品无码一区二区三区,中文人妻av高清一区二区,中文字幕乱偷无码av先锋

AM29F017B Datasheet

  • AM29F017B

  • Advanced Micro Devices [16 Megabit (2 M x 8-Bit) CMOS 5.0 V...

  • AMD

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

P R E L I M I N A R Y
the system must write the reset command to return to
reading array data.
The remaining scenario is that the system initially de-
termines that the toggle bit is toggling and DQ5 has not
gone high. The system may continue to monitor the
toggle bit and DQ5 through successive read cycles, de-
termining the status as described in the previous para-
graph. Alternatively, it may choose to perform other
system tasks. In this case, the system must start at the
beginning of the algorithm when it returns to determine
the status of the operation (top of Figure 5).
erase command. If DQ3 is high on the second status
check, the last command might not have been ac-
cepted. Table 6 shows the outputs for DQ3.
START
DQ5: Exceeded Timing Limits
DQ5 indicates whether the program or erase time has
exceeded a specified internal pulse count limit. Under
these conditions DQ5 produces a 鈥?.鈥?This is a failure
condition that indicates the program or erase cycle was
not successfully completed.
The DQ5 failure condition may appear if the system
tries to program a 鈥?鈥?to a location that is previously pro-
grammed to 鈥?.鈥?/div>
Only an erase operation can change
a 鈥?鈥?back to a 鈥?.鈥?/div>
Under this condition, the device
halts the operation, and when the operation has ex-
ceeded the timing limits, DQ5 produces a 鈥?.鈥?/div>
Under both these conditions, the system must issue the
reset command to return the device to reading array
data.
No
Read DQ7鈥揇Q0
Read DQ7鈥揇Q0
(Note 1)
Toggle Bit
= Toggle?
Yes
No
DQ5 = 1?
DQ3: Sector Erase Timer
After writing a sector erase command sequence, the
system may read DQ3 to determine whether or not an
erase operation has begun. (The sector erase timer
does not apply to the chip erase command.) If addi-
tional sectors are selected for erasure, the entire time-
out also applies after each additional sector erase
command. When the time-out is complete, DQ3
switches from 鈥?鈥?to 鈥?.鈥?The system may ignore DQ3
if the system can guarantee that the time between ad-
ditional sector erase commands will always be less
than 50 碌s. See also the 鈥淪ector Erase Command Se-
quence鈥?section.
After the sector erase command sequence is written,
the system should read the status on DQ7 (Data# Poll-
ing) or DQ6 (Toggle Bit I) to ensure the device has ac-
cepted the command sequence, and then read DQ3. If
DQ3 is 鈥?鈥? the internally controlled erase cycle has be-
gun; all further commands (other than Erase Suspend)
are ignored until the erase operation is complete. If
DQ3 is 鈥?鈥? the device will accept additional sector
erase commands. To ensure the command has been
accepted, the system software should check the status
of DQ3 prior to and following each subsequent sector
Yes
Read DQ7鈥揇Q0
Twice
(Notes
1, 2)
Toggle Bit
= Toggle?
No
Yes
Program/Erase
Operation Not
Complete, Write
Reset Command
Program/Erase
Operation Complete
Notes:
1. Read toggle bit twice to determine whether or not it is
toggling. See text.
2. Recheck toggle bit because it may stop toggling as DQ5
changes to 鈥?鈥? See text.
21195B-9
Figure 5.
Toggle Bit Algorithm
Am29F017B
19

AM29F017B相關(guān)型號PDF文件下載

  • 型號
    版本
    描述
    廠商
    下載
  • 英文版
    Analog IC
    ETC
  • 英文版
    Analog IC
    ETC
  • 英文版
    Analog IC
    ETC
  • 英文版
    A High-Performance 8-Bit Slice Microprogram Sequencer
    AMD
  • 英文版
    A High-Performance 8-Bit Slice Microprogram Sequencer
    AMD [Advan...
  • 英文版
    Eight-Bit AM29116 I/O Support
    AMD
  • 英文版
    Eight-Bit AM29116 I/O Support
    AMD [Advan...
  • 英文版
    MICROPROGRAM SEQUENCER BLOCK DIAGRAM
    AMD
  • 英文版
    MICROPROGRAM SEQUENCER BLOCK DIAGRAM
    AMD [Advan...
  • 英文版
    Eight Input multiplexer with Control Register
    AMD
  • 英文版
    Eight Input multiplexer with Control Register
    AMD [Advan...
  • 英文版
    A High-Performance 8-Bit Slice Microprogram Sequencer
    AMD
  • 英文版
    A High-Performance 8-Bit Slice Microprogram Sequencer
    AMD [Advan...
  • 英文版
    DMA ADDRESS GENERATOR
    ETC
  • 英文版
    A High-Performance 8-Bit Slice Microprogram Sequencer
    AMD
  • 英文版
    DMA ADDRESS GENERATOR
    ETC [ETC]
  • 英文版
    A High-Performance 8-Bit Slice Microprogram Sequencer
    AMD
  • 英文版
    A High-Performance 8-Bit Slice Microprogram Sequencer
    AMD [Advan...
  • 英文版
    Octal Three-State Bidirectional Bus Transceiver
    ETC
  • 英文版
    Octal Three-State Bidirectional Bus Transceiver
    ETC [ETC]

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號，
第一時間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！