PIC16CR83 Datasheet_PDF文件下载_芯片资料查询

PIC16F8X

10.5

PIC16F83/84

Timing Diagrams and Speci铿乧ations

FIGURE 10-3: EXTERNAL CLOCK TIMING

Q4

OSC1

1

2

CLKOUT

3

4

Q1

Q2

Q3

Q4

Q1

TABLE 10-3

Parameter

No.

EXTERNAL CLOCK TIMING REQUIREMENTS

Sym

F

OSC

Characteristic

External CLKIN Frequency

(1)

Min

DC

0.1

1.0

DC

500

250

100

5.0

500

250

500

250

100

5.0

0.4

60 *

50 *

2.0 *

35 *

25 *

50 *

15 *

Typ鈥?/div>

鈥?/div>

4/Fosc

鈥?/div>

Max

2

4

10

200

2

4

2

4

10

200

鈥?/div>

10,000

1,000

鈥?/div>

DC

鈥?/div>

Units

MHz

kHz

MHz

kHz

ns

碌s

ns

碌s

ns

碌s

ns

Conditions

XT, RC osc

HS osc

LP osc

RC osc

XT osc

HS osc

LP osc

XT, RC osc

HS osc

LP osc

RC osc

XT osc

HS osc

LP osc

XT osc

LP osc

HS osc

XT osc

LP osc

HS osc

PIC16LF8X-04

PIC16F8X-04

PIC16F8X-10

PIC16LF8X-04

PIC16F8X-04

PIC16LF8X-04

PIC16F8X-04

PIC16F8X-10

PIC16LF8X-04

PIC16F8X-04

PIC16F8X-10

PIC16LF8X-04

PIC16F8X-04

PIC16LF8X-04

PIC16F8X-04

PIC16F8X-10

PIC16LF8X-04

PIC16F8X-04

PIC16LF8X-04

PIC16F8X-10

PIC16F8X-04

PIC16LF8X-04

PIC16F8X-10

Oscillator Frequency

(1)

1

Tosc

External CLKIN Period

(1)

Oscillator Period

(1)

2

3

T

CY

TosL,

TosH

Instruction Cycle Time

(1)

Clock in (OSC1) High or Low

Time

4

TosR,

TosF

Clock in (OSC1) Rise or Fall Time

These parameters are characterized but no tested.

Data in "Typ" column is at 5.0V, 25掳C unless otherwise stated. These parameters are for design guidance only

and are not tested.

Note 1:

Instruction cycle period (T

CY

) equals four times the input oscillator time-base period. All speci铿乪d values are

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

device executing code. Exceeding these speci铿乪d 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.

*

鈥?/div>

DS30430C-page 80

漏

1998 Microchip Technology Inc.

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