DSPIC33FJ64GS406 datasheet(385/456 Pages) MICROCHIP

385 / 456 page

 2009-2012 Microchip Technology Inc.

DS70591E-page 385

dsPIC33FJ32GS406/606/608/610 and dsPIC33FJ64GS406/606/608/610

FIGURE 27-5:

TIMER1/2/3 EXTERNAL CLOCK TIMING CHARACTERISTICS

Note: Refer to Figure 27-1 for load conditions.

Tx11

Tx15

Tx10

Tx20

TMRx

OS60

TxCK

TABLE 27-23: TIMER1 EXTERNAL CLOCK TIMING REQUIREMENTS(1)

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C

 TA  +85°C for Industrial

-40°C

 TA  +125°C for Extended

Param

No.

Symbol

Characteristic

Min

Typ

Max

Units

Conditions

TA10

TTXH

T1CK High Time Synchronous,

no prescaler

TCY + 20

—

Must also meet

Parameter TA15,

N = prescale value

(1, 8, 64, 256)

Synchronous,

with prescaler

(TCY + 20)/N

—

Asynchronous

—

TA11

TTXL

T1CK Low Time Synchronous,

no prescaler

(TCY + 20)

—

Must also meet

Parameter TA15,

N = prescale value

(1, 8, 64, 256)

Synchronous,

with prescaler

(TCY + 20)/N

—

Asynchronous

—

TA15

TTXP

T1CK Input

Period

Synchronous,

no prescaler

2 TCY + 40

—

Synchronous,

with prescaler

Greater of:

40 ns or

(2 TCY + 40)/N

—

N = prescale value

(1, 8, 64, 256)

Asynchronous

—

OS60

Ft1

SOSCI/T1CK Oscillator Input

Frequency Range (oscillator

enabled by setting bit, TCS

(T1CON<1>))

—

kHz

TA20

TCKEXTMRL Delay from External T1CK Clock

Edge to Timer Increment

0.75 TCY + 40

—

1.75 TCY + 40

—

Note 1: Timer1 is a Type A.

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