© 1996 Microchip Technology Inc.

Advanced Information

DS40121A-page 13

Enhanced PIC16LV5X

5.4

Timing Diagrams and Specifications

FIGURE 5-2:

EXTERNAL CLOCK TIMING - PIC16LV5XA

TABLE 5-1:

EXTERNAL CLOCK TIMING REQUIREMENTS - PIC16LV5XA

AC Characteristics

Standard Operating Conditions (unless otherwise specified)

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 specified values are based on characterization data for that particular oscillator type under standard operating condi-

tions 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.

3:

OSC1

CLKOUT

Q4

Q1

Q2

Q3

Q4

Q1

13

3

44

2