DSPIC33FJ12MC201TESS datasheet(240/304 Pages) MICROCHIP

240 / 304 page

dsPIC33FJ12MC201/202

DS70265E-page 240

FIGURE 24-5:

TIMER1, 2, 3 AND 4 EXTERNAL CLOCK TIMING CHARACTERISTICS

TABLE 24-22: 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

TxCK 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

TxCK 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

TxCK Input

Period

Synchronous,

no prescaler

2 TCY + 40

—

Synchronous,

with prescaler

Greater of:

40 ns or

(2 TCY + 40)/

—

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 TxCK Clock

Edge to Timer Increment

0.75 TCY +

1.75 TCY +

——

Note 1:

Timer1 is a Type A.

Note:

Refer to Figure 24-1 for load conditions.

Tx11

Tx15

Tx10

Tx20

TMRx

OS60

TxCK

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