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TC58FVT641 データシート(PDF) 16 Page - Toshiba Semiconductor

部品番号 TC58FVT641
部品情報  64-MBIT (8M 횞 8 BITS / 4M 횞 16 BITS) CMOS FLASH MEMORY
PDF  53 Pages
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メーカー  TOSHIBA [Toshiba Semiconductor]
ホームページ  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TC58FVT641 データシート(HTML) 16 Page - Toshiba Semiconductor

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TC58FVT641/B641FT/XB-70,-10
2001-09-06
16/53
HARDWARE SEQUENCE FLAGS
The TC58FVT641/B641 has a Hardware Sequence flag which allows the device status to be determined during an
auto mode operation. The output data is read out using the same timing as that used when CE = OE = VIL in
Read Mode. The
BY
/
RY
output can be either High or Low.
The device re-enters Read Mode automatically after an auto mode operation has been completed successfully. The
Hardware Sequence flag is read to determine the device status and the result of the operation is verified by
comparing the read-out data with the original data.
STATUS
DQ7
DQ6
DQ5
DQ3
DQ2
BY
/
RY
Auto Programming
7
DQ
Toggle
0
0
1
0
Read in Program Suspend
(1)
Data
Data
Data
Data
Data
High-Z
Selected
(2)
0
Toggle
0
0
Toggle
0
Erase Hold Time
Not-selected
(3)
0
Toggle
0
0
1
0
Selected
0
Toggle
0
1
Toggle
0
In Auto
Erase
Auto Erase
Not-selected
0
Toggle
0
1
1
0
Selected
1
1
0
0
Toggle
High-Z
Read
Not-selected
Data
Data
Data
Data
Data
High-Z
Selected
7
DQ
Toggle
0
0
Toggle
0
In Progress
In Erase
Suspend
Programming
Not-selected
7
DQ
Toggle
0
0
1
0
Auto Programming
7
DQ
Toggle
1
0
1
0
Auto Erase
0
Toggle
1
1
NA
0
Time Limit
Exceeded
Programming in Erase Suspend
7
DQ
Toggle
1
0
NA
0
Notes:DQ outputs cell data and
BY
/
RY
goes High-Impedence when the operation has been completed.
DQ0 and DQ1 pins are reserved for future use.
0 is output on DQ0, DQ1 and DQ4.
(1) Data output from an address to which Write is being performed is undefined.
(2) Output when the block address selected for Auto Block Erase is specified and data is read from there.
During Auto Chip Erase, all blocks are selected.
(3) Output when a block address not selected for Auto Block Erase of same bank as selected block is specified and data is
read from there.
DQ7 (
polling)
During an Auto-Program or auto-erase operation, the device status can be determined using the data polling
function. DATA polling begins on the rising edge of WE in the last bus cycle. In an Auto-Program operation,
DQ7 outputs inverted data during the programming operation and outputs actual data after programming has
finished. In an auto-erase operation, DQ7 outputs 0 during the Erase operation and outputs 1 when the Erase
operation has finished. If an Auto-Program or auto-erase operation fails, DQ7 simply outputs the data.
When the operation has finished, the address latch is reset. Data polling is asynchronous with the OE
signal.
DATA



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