PIC16F570 datasheet(89/129 Pages) MICROCHIP

89 / 129 page

 2013-2014 Microchip Technology Inc.

DS40001684E-page 89

PIC16F570

TABLE 15-6:

EXTERNAL CLOCK TIMING REQUIREMENTS

AC Characteristics

Standard Operating Conditions (unless otherwise specified)

Operating Temperature -40

C  TA  +85C (industrial),

-40

C  TA  +125C (extended)

Operating voltage VDD range is described in Section 15.1 “DC

Characteristics: PIC16F570 (Industrial)”.

Param.

No.

Sym.

Characteristic

Min.

Typ.(1)

Max.

Units

Conditions

FOSC

External CLKIN Frequency(2)

—

MHz XT Oscillator

—

MHz HS/EC Oscillator

—

200

kHz

LP Oscillator

Oscillator Frequency(2)

—

MHz EXTRC Oscillator

0.1

—

MHz XT Oscillator

—

MHz HS/EC Oscillator

—

200

kHz

LP Oscillator

1TOSC

External CLKIN Period(2)

250

—

XT Oscillator

—

HS/EC Oscillator

5—

—

s

LP Oscillator

Oscillator Period(2)

250

—

EXTRC Oscillator

250

—

10,000

XT Oscillator

—

250

HS/EC Oscillator

5—

—

s

LP Oscillator

TCY

Instruction Cycle Time

200

4/FOSC

TosL,

TosH

Clock in (OSC1) Low or High

Time

50*

—

XT Oscillator

—

s

LP Oscillator

10*

—

HS/EC Oscillator

4TosR,

TosF

Clock in (OSC1) Rise or Fall

Time

—

25*

XT Oscillator

—

50*

LP Oscillator

—

15*

HS/EC Oscillator

These parameters are characterized but not tested.

Note 1: Data in the Typical (“Typ.”) column is at 5V, 25

C unless otherwise stated. These parameters are for design

guidance only and are not tested.

2: 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. When an external clock

input is used, the “max.” cycle time limit is “DC” (no clock) for all devices.

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