MB91F522DKBPMC datasheet(271/280 Pages) CYPRESS

271 / 280 page

Document Number: 002-04662 Rev. *F

Page 271 of 280

MB91520 Series

Page

Section

Change Results

■During Power-on

The following sentence modified as following:

(Error)

To prevent a malfunction of the voltage step-down circuit built in the device, the

voltage rising must be monotonic increasing during power-on.

Power-on prohibits that the voltage goes up and down and voltage rising stops

temporarily.

(Correct)

To prevent a malfunction of the voltage step-down circuit built in the device, the

voltage rising must be monotonic during power-on.

142,143

11. Electrical Characteristics

Recommended operating

conditions

The following sentence modified as following:

(Error)

*1: When it is used outside recommended operation guarantee range (range of

the operation guarantee), contact your sales representative. Moreover,

minimum value with an effective external low-voltage detection reset

becomes a voltage until generating low-voltage detection reset.

(Correct)

*1: When it is used outside recommended operation guarantee range (range of

the operation guarantee), contact your sales representative.

Detection voltage of the external low voltage detection reset (initial) is

2.8V±8% (2.576V to 3.024V).

This detection voltage (2.576V) is below the minimum operation guarantee

voltage (2.7V).

Between this detection voltage and the minimum operation guarantee

voltage,

MCU functions are not guaranteed except for the low voltage detector.

Note that although the detection level is below the minimum operation

guarantee voltage,

the LVD reset factor flag is set as the voltage drops below the detection level.

156, 157

11. Electrical Characteristics

AC Characteristics

Added (3-2) Power-on Conditions for MB91F52xxxE

184

11. Electrical Characteristics

AC Characteristics

(4-4) I2C timing

The following sentence modified as following:

(Error)

High-speed

mode*3

Unit

Remarks

Min

Max

Notes: Only ch.3 and ch.4 are standard mode/high-speed mode

correspondence.

*3: A high-speed mode I2C bus device can be used

(Correct)

Fast mode*3

Unit

Remarks

Min

Max

Notes: Only ch.3 and ch.4 are standard mode/fast mode correspondence.

*3: A fast mode I2C bus device can be used

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