N

°

Symbol

Parameter

Value (Note)

Unit

OSCIN

Divided By

2 Min.

OSCIN Not

Divided By

2 Min.

Min. Max.

1

TwLR

Low Level Minimum Pulse Width in Rising Edge Mode

2TpC+12

TpC+12

95

ns

2

TwHR

High Level Minimum Pulse Width in Rising Edge Mode

2TpC+12

TpC+12

95

ns

3

TwHF

High Level Minimum Pulse Width in Falling Edge Mode

2TpC+12

TpC+12

95

ns

4

TwLF

Low Level Minimum Pulse Width in Falling Edge Mode

2TpC+12

TpC+12

95

ns

Note: The value left hand two columns show the formula used to calculate the timing minimum or maximum from the oscillator clock period,

prescale value and number of wait cycles inserted.

The value right hand two columns show the timing minimum and maximum for an external clock at 24 MHz divided by 2, prescale value of zero

and zero wait status.

INTCLK = 12MHz, Push-pull output configuration, unless otherwise specified)

EXTERNAL INTERRUPT TIMING

®

ST9040

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