41594B datasheet(333/372 Pages) MICROCHIP

333 / 372 page

 2011-2012 Microchip Technology Inc.

Preliminary

DS41594B-page 333

PIC12LF1840T48A

TABLE 31-2:

OSCILLATOR PARAMETERS

TABLE 31-3:

PLL CLOCK TIMING SPECIFICATIONS (VDD = 2.7V TO 3.6V)

Standard Operating Conditions (unless otherwise stated)

Operating Temperature

-40°C

TA +125°C

Param

No.

Sym.

Characteristic

Freq.

Tolerance

Min.

Typ†

Max.

Units

Conditions

OS08

HFOSC

Internal Calibrated HFINTOSC

Frequency(2)

2%

—

16.0

—

MHz

0°C

 TA  +60°C, VDD  2.5V

3%

—

16.0

—

MHz

60°C

 TA  +85°C, VDD  2.5V

5%

—

16.0

—

MHz

-40°C

 TA  +125°C

OS08A MFOSC

Internal Calibrated MFINTOSC

Frequency(2)

2%

—

500

—

kHz

0°C

 TA  +60°C, VDD  2.5V

3%

—

500

—

kHz

60°C

 TA  +85°C, VDD  2.5V

5%

—

500

—

kHz

-40°C

 TA  +125°C

OS09

LFOSC

Internal LFINTOSC Frequency

—

21.5

40.5

kHz

-40°C

 TA  +125°C

OS10*

TIOSC ST HFINTOSC

Wake-up from Sleep Start-up Time

MFINTOSC

Wake-up from Sleep Start-up Time

—

s

These parameters are characterized but not tested.

†

Data in “Typ” column is at 3.0V, 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 con-

sumption. All devices are tested to operate at “min” values with an external clock applied to the OSC1 pin. When an exter-

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

2: To ensure these oscillator frequency tolerances, VDD and VSS must be capacitively decoupled as close to the device as

possible. 0.1

F and 0.01 F values in parallel are recommended.

3: By design.

Param

No.

Sym.

Characteristic

Min.

Typ†

Max.

Units

Conditions

F10

FOSC Oscillator Frequency Range

—

MHz

F11

FSYS

On-Chip VCO System Frequency

—

MHz

F12

TRC

PLL Start-up Time (Lock Time)

—

F13*

CLK CLKOUT Stability (Jitter)

-0.25%

—

+0.25%

* These parameters are characterized but not tested.

† Data in “Typ” column is at 3V, 25

C unless otherwise stated. These parameters are for design guidance

only and are not tested.

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