PIC16F84A datasheet(80/124 Pages) MICROCHIP

80 / 124 page

PIC16F8X

PIC16F83/84

DS30430C-page 80

10.5

Timing Diagrams and Speciﬁcations

FIGURE 10-3: EXTERNAL CLOCK TIMING

OSC1

CLKOUT

TABLE 10-3

EXTERNAL CLOCK TIMING REQUIREMENTS

Parameter

No.

Sym

Characteristic

Min

Typ†

Max

Units

Conditions

FOSC

External CLKIN Frequency

(1)

—

MHz

XT, RC osc

PIC16LF8X-04

—

MHz

XT, RC osc

PIC16F8X-04

—

MHz

HS osc

PIC16F8X-10

—

200

kHz

LP osc

PIC16LF8X-04

Oscillator Frequency

(1)

—

MHz

RC osc

PIC16LF8X-04

—

MHz

RC osc

PIC16F8X-04

0.1

—

MHz

XT osc

PIC16LF8X-04

0.1

—

MHz

XT osc

PIC16F8X-04

1.0

—

MHz

HS osc

PIC16F8X-10

—

200

kHz

LP osc

PIC16LF8X-04

Tosc

External CLKIN Period

(1)

500

—

XT, RC osc

PIC16LF8X-04

250

—

XT, RC osc

PIC16F8X-04

100

—

HS osc

PIC16F8X-10

5.0

—

µs

LP osc

PIC16LF8X-04

Oscillator Period

(1)

500

—

RC osc

PIC16LF8X-04

250

—

RC osc

PIC16F8X-04

500

—

10,000

XT osc

PIC16LF8X-04

250

—

10,000

XT osc

PIC16F8X-04

100

—

1,000

HS osc

PIC16F8X-10

5.0

—

µs

LP osc

PIC16LF8X-04

TCY

Instruction Cycle Time

(1)

0.4

4/Fosc

µs

TosL,

TosH

Clock in (OSC1) High or Low

Time

60 *

—

XT osc

PIC16LF8X-04

50 *

—

XT osc

PIC16F8X-04

2.0 *

—

µs

LP osc

PIC16LF8X-04

35 *

—

HS osc

PIC16F8X-10

TosR,

TosF

Clock in (OSC1) Rise or Fall Time

25 *

—

XT osc

PIC16F8X-04

50 *

—

LP osc

PIC16LF8X-04

15 *

—

HS osc

PIC16F8X-10

These parameters are characterized but no tested.

†

Data in "Typ" column is at 5.0V, 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 the OSC1 pin.

When an external clock input is used, the "Max." cycle time limit is "DC" (no clock) for all devices.

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