PIC16F916ESLASHP301 datasheet(231/272 Pages) MICROCHIP

231 / 272 page

Preliminary

DS41250E-page 229

PIC16F917/916/914/913

19.6

AC Characteristics: PIC16F917/916/914/913 (Industrial, Extended)

FIGURE 19-3:

EXTERNAL CLOCK TIMING

TABLE 19-1:

EXTERNAL CLOCK TIMING REQUIREMENTS

Standard Operating Conditions (unless otherwise stated)

Operating Temperature

-40°C

≤ TA ≤ +125°C

Param

No.

Sym.

Characteristic

Min.

Typ†

Max.

Units

Conditions

FOSC

External CLKI Frequency(1)

—

kHz

LP Oscillator mode

—

MHz

XT Oscillator mode

—

MHz

HS Oscillator mode

—

MHz

EC Oscillator mode

Oscillator Frequency(1)

—

kHz

LP Oscillator mode

—

MHz

INTOSC mode

—

MHz

RC Oscillator mode

0.1

—

MHz

XT Oscillator mode

—

MHz

HS Oscillator mode

1TOSC

External CLKI Period(1)

—

∞μs

LP Oscillator mode

—

∞

HS Oscillator mode

—

∞

EC Oscillator mode

250

—

∞

XT Oscillator mode

Oscillator Period(1)

200

μs

LP Oscillator mode

—

250

—

INTOSC mode

250

—

RC Oscillator mode

250

—

10,000

XT Oscillator mode

—

1,000

HS Oscillator mode

2TCY

Instruction Cycle Time(1)

200

TCY

TCY = 4/FOSC

3TosL,

TosH

External CLKI (OSC1) High

External CLKI Low

—

μs

LP oscillator, TOSC L/H duty cycle

20*

—

HS oscillator, TOSC L/H duty cycle

100 *

—

XT oscillator, TOSC L/H duty cycle

4TosR,

TosF

External CLKI Rise

External CLKI Fall

—

50*

LP oscillator

—

25*

XT oscillator

—

15*

HS oscillator

These parameters are characterized but not tested.

† Data in ‘Typ’ column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance

only and are not tested.

Note 1:

Instruction cycle period (TCY) equals four times the input oscillator time base period. All specified values

are based on characterization data for that particular oscillator type under standard operating conditions

with the device executing code. Exceeding these specified limits may result in an unstable oscillator

operation and/or higher than expected current consumption. All devices are tested to operate at ‘min’

values with an external clock applied to OSC1 pin. When an external clock input is used, the ‘max’ cycle

time limit is ‘DC’ (no clock) for all devices.

OSC1

CLKO

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