MB91F522DKBPMC datasheet(146/280 Pages) CYPRESS

146 / 280 page

Document Number: 002-04662 Rev. *F

Page 146 of 280

MB91520 Series

(2) Reset Input

(TA: -40 °C to +125 °C, VCC = AVCC = 5.0 V ± 10 %/VCC = AVCC = 3.3 V ± 0.3 V, VSS = AVSS = 0.0 V)

Parameter

Symbol

Name

Conditions

Value

Unit

Remarks

Min

Max

Reset input time

tRSTL

RSTX

–

µs

When normal

operation

Oscillation time of

oscillator* +100

–

µs

At Stop mode

At Power-on*2

100

–

µs

At Watch mode

Width for reset

input removal

–

µs

*1: The oscillation time of the oscillator is the time it takes for the amplitude of the oscillations to reach 90 %. For

crystal oscillators, this time is between several ms and several tens of ms, for ceramic oscillators the time is

between several hundred μs and several ms, and for an external clock, the time is 0 ms.

*2: In case of using MB91F52xxxD or MB91F52xxxE and corresponding to note in (3) Power-on Conditions of next

subsection, assert RSTX with power-on.

RSTX

0.2 vcc

tRSTL

At Stop mode

0.2 VCC

100

μs

RSTX

90% of

amplitude

Internal operation

clock

Oscillation time

of oscillator

Oscillation stabilization

waiting time

Instruction

execution

Internal reset

0.2 VCC

tRSTL

MB91F522DKBPMC Datasheet(PDF) 146 Page - Cypress Semiconductor

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