PIC16F882-E/PTSQTP 查看數據表（PDF） - Microchip Technology

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PIC16F882-E/PTSQTP

28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers

Microchip Technology 

PIC16F882/883/884/886/887

FIGURE 17-8:

TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS

T0CKI

40

41

42

T1CKI

TMR0 or

TMR1

45

46

47

49

TABLE 17-5: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS

Standard Operating Conditions (unless otherwise stated)

Operating Temperature

-40°C TA +125°C

Param

No.

Sym.

Characteristic

Min.

Typ† Max. Units Conditions

40* TT0H

T0CKI High Pulse Width No Prescaler 0.5 TCY + 20 —

—

ns

With Prescaler

10

—

—

ns

41* TT0L

42* TT0P

45* TT1H

T0CKI Low Pulse Width

No Prescaler 0.5 TCY + 20 —

—

ns

With Prescaler

10

—

—

ns

T0CKI Period

Greater of: —

—

ns N = prescale value

20 or TCY + 40

(2, 4, ..., 256)

N

T1CKI High Synchronous, No Prescaler

0.5 TCY + 20 —

—

ns

Time

Synchronous,

15

—

—

ns

with Prescaler

46* TT1L

Asynchronous

30

—

—

ns

T1CKI Low Synchronous, No Prescaler

0.5 TCY + 20 —

—

ns

Time

Synchronous,

15

—

—

ns

with Prescaler

47* TT1P

Asynchronous

T1CKI Input Synchronous

Period

30

—

—

ns

Greater of: —

—

ns N = prescale value

30 or TCY + 40

(1, 2, 4, 8)

N

Asynchronous

60

—

—

ns

48

FT1

Timer1 Oscillator Input Frequency Range

(oscillator enabled by setting bit T1OSCEN)

—

32.768 — kHz

49* TCKEZTMR1 Delay from External Clock Edge to Timer

Increment

2 TOSC

— 7 TOSC — Timers in Sync

mode

* These parameters are characterized but not tested.

† Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only and are

not tested.

DS41291G-page 264

 2006-2012 Microchip Technology Inc.

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