MB91F522DKBPMC datasheet(274/280 Pages) CYPRESS

274 / 280 page

Document Number: 002-04662 Rev. *F

Page 274 of 280

MB91520 Series

Page

Section

Change Results

187

11. Electrical Characteristics

(8) Low voltage detection

(External low-voltage

detection)

Note of Detection voltage should be added as follows:

(Correct)

Detection voltage *3

*3: The initial detection voltage of the external low voltage detection is 2.8V±8%

(2.576V to 3.024V). This LVD setting cannot be used to reliably generate a reset

before voltage dips below minimum guaranteed MCU operation voltage, as this

detection level is below the minimum guaranteed MCU operation voltage (2.7V).

Below the minimum guaranteed MCU operation voltage, MCU operations are not

guaranteed with the exception of LVD.

188

11. Electrical Characteristics

(9) Low voltage detection

(Internal low-voltage

detection)

The following sentence modified as following:

(Error)

(9) Low voltage detection (RAM retention low-voltage detection)

(Correct)

(9) Low voltage detection (Internal low-voltage detection)

The following symbol should be modified as follows:

(Error)

(Correct)

Note of Detection voltage should be added as follows:

(Correct)

Detection voltage *2

*2: The detection voltage of the internal low voltage detection is 0.9V±0.1V. This

LVD cannot be used to reliably generate a reset before voltage dips below

minimum guaranteed MCU operation voltage, as this detection level is below the

minimum guaranteed MCU operation voltage. Below the minimum guaranteed

MCU operation voltage, MCU operations are not guaranteed with the exception

of LVD.

233 to

235

18. Errata

Limitation for Watch mode (power off) should be added in Errata.

Rev *F

222

16. Ordering Information

MB91F52xxxE

The shading part added as below.

Part number

Sub

clock

CSV

Initial

value

LVD

Initial

value

Package*

MB91F526LSEPMC

None

LQP・176 pin,

Plastic

MB91F526LHEPMC

OFF

MB91F526LKEPMC

OFF

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