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BR25L080F-WE2 Datasheet(PDF) 11 Page - Rohm

Part # BR25L080F-WE2
Description  High Reliability Serial EEPROMs SPI BUS Serial EEPROMs
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

BR25L080F-WE2 Datasheet(HTML) 11 Page - Rohm

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BR25L010-W, BR25L020-W, BR25L040-W, BR25L080-W, BR25L160-W, BR25L320-W, BR25L640-W
Technical Note
Method to cancel each command
READ
Fig.48 READ cancel valid timing
RDSR
Fig.49 RDSR cancel valid timing
WRSR
Fig.51 WRSR cancel valid timing
WRITE, PAGE WRITE
Fig.50 WRITE cancel valid timing
WREN/WRDI
Fig.52 WREN / WRDI cancel valid timing
8 bits
8 bits
Data
Cancel available in all areas of read mode
Ope code
8 bits
8 bits
Cancel available in all
areas of read mode
Ope code
Data
a
b
d
c
tE/W
8 bits
8 bits
8 bits
Ope code
Address
Data (n)
Method to cancel : cancel by CS = "H"
Method to cancel : cancel by CS = "H"
a
c
b
tE/W
8 bit
8 bit
Ope code
Address
b
SCK
SI
D1
D0
15
16
17
14
c
a
b
c
SCK
SI
D7
D6
D5
D4
D3
D2
D1
D0
b
a
8 bit
b
SCK
89
7
a
Ope code
Note 1) If Vcc is made OFF during write execution, designated address data is not guaranteed, therefore write it once
again.
Note 2) If CS is started at the same timing as that of the SCK rise, write execution / cancel becomes unstable,
therefore, it is necessary to fall in SCK = "L" area. As for SCK rise, assure timing of tCSS / tCSH or higher.
a : Ope code, address input area.
Cancellation is available by CS = "H".
b : Data input area (D7 ~ D1 input area)
Cancellation is available by CS = "H".
c : Data input area (D0 area)
When CS is started, write starts.
After CS rise, cancellation cannot be made by any
means.
d : tE/W area
Cancellation is available by CS = "H". However, when
write starts (CS is started) in the area c, cancellation
cannot be made by any means. And, by inputting on
SCK clock, cancellation cannot be made. In page write
mode, there is write enable area at every 8 clocks.
a : From ope code to 15 clock rise
Cancel by CS = "H".
b : From 15 clock rise to 16 clock rise (write enable area)
When CS is started, write starts.
After CS rise, cancellation cannot be made by any
means.
c : After 16 clock rise
Cancel by CS = "H". However, when write starts (CS is
started) in the area b, cancellation cannot be made by
any means. And, by inputting on SCK clock, cancellation
cannot be made.
Note 1) If Vcc is made OFF during write execution, designated address data is not guaranteed, therefore write it once
again.
Note 2) If CS is started at the same timing as that of the SCK rise, write execution / cancel becomes unstable,
therefore, it is necessary to fall in SCK = "L" area. As for SCK rise, assure timing of tCSS/tCSH or higher.
a : From ope code to clock rise, cancel by CS = "H".
b : Cancellation is not available when CS is started after 7 clock.
8 bits / 16 bits
Address
2010.07 -
Rev. B
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.


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