© 1996 Microchip Technology Inc.

Advanced Information

DS40121A-page 13

Enhanced PIC16LV5X

5.4

Timing Diagrams and Speci?cations

FIGURE 5-2:

EXTERNAL CLOCK TIMING - PIC16LV5XA

TABLE 5-1:

EXTERNAL CLOCK TIMING REQUIREMENTS - PIC16LV5XA

AC Characteristics

Standard Operating Conditions (unless otherwise speci?ed)

Operating Temperature

0

?20

the Enhanced PIC16C5X data sheet (DS30236B).

Parameter

No.

Sym

Characteristic

Min

Typ

(1)

Max

Units

Conditions

External CLKIN Frequency

(2)

DC

?

2.0

MHz

RC osc mode

DC

?

2.0

MHz

XT osc mode

DC

?

200

kHz

LP osc mode

Oscillator Frequency

(2)

DC

?

2.0

MHz

RC osc mode

0.1

?

2.0

MHz

XT osc mode

5

?

200

kHz

LP osc mode

External CLKIN Period

(2)

500

?

?

ns

RC osc mode

500

?

?

ns

XT osc mode

5.0

?

?

µs

LP osc mode

Oscillator Period

(2)

500

?

?

ns

RC osc mode

500

?

10,000

ns

XT osc mode

5.0

?

200

µs

LP osc mode

Instruction Cycle Time

(3)

?

??

3

TosL, TosH Clock in (OSC1) Low or High Time

50*

?

?

ns

XT oscillator

2.0*

?

?

µs

LP oscillator

4

TosR, TosF Clock in (OSC1) Rise or Fall Time

?

?

25*

ns

XT oscillator

?

?

50*

ns

LP oscillator

*

These parameters are characterized but not tested.

Note 1:

Data in the Typical (?Typ?) column is at 3.8V, 25?C unless otherwise stated. These parameters are for design guidance

only and are not tested.

2:

All speci?ed values are based on characterization data for that particular oscillator type under standard operating condi-

tions with the device executing code. Exceeding these speci?ed 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.

3:

OSC1

CLKOUT

Q4

Q1

Q2

Q3

Q4

Q1

13

3

44

2