DSC POWER 864 - REV2 Especificaciones descargar pdf (Pagina 226)

PIC24F16KA102 FAMILY

FIGURE 29-3: EXTERNAL CLOCK TIMING

OSCI

CLKO

Q4 Q1 Q2 Q3 Q4

OS20

OS25

OS30 OS30

OS40

OS41

OS31

Q1 Q2 Q3 Q4

TABLE 29-17: EXTERNAL CLOCK TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 1.8 to 3.6V (unless otherwise stated)

Operating temperature -40°C ≤ T

A ≤ +85°C for Industrial

Param

No.

Sym Characteristic Min Typ

(1)

Max Units Conditions

OS10 F

OSC External CLKI Frequency

(External clocks allowed

only in EC mode)

—

MHz

ECPLL

Oscillator Frequency 0.2

—

MHz

kHz

HSPLL

SOSC

OS20 T

OSC TOSC = 1/FOSC — — — — See parameter OS10 for FOSC

value

OS25 T

CY Instruction Cycle Time

(2)

62.5 — DC ns

OS30 TosL,

To s H

External Clock in (OSCI)

High or Low Time

0.45 x TOSC ——nsEC

OS31 TosR,

To s F

External Clock in (OSCI)

Rise or Fall Time

——20nsEC

OS40 TckR CLKO Rise Time

(3)

—610ns

OS41 TckF CLKO Fall Time

(3)

—610ns

Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only

and are not tested.

2: Instruction cycle period (T

CY) equals two 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 OSCI/CLKI pin. When an external clock input is used, the “Max.” cycle time

limit is “DC” (no clock) for all devices.

3: Measurements are taken in EC mode. The CLKO signal is measured on the OSCO pin. CLKO is low for the

Q1-Q2 period (1/2 T

CY) and high for the Q3-Q4 period (1/2 TCY).

1 2 ... 221 222 223 224 225 226 227 228 229 230 231 ... 253 254

Comentarios a estos manuales

Sin comentarios

DSC POWER 864 - REV2 Especificaciones Pagina 226

Comentarios a estos manuales

Relacionado con productos y manuales para Los Sistemas De Control De Acceso De Seguridad DSC POWER 864 - REV2