PIC16F636T-I/SL(2005) View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F636T-I/SL
(Rev.:2005)

8/14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC12F635/PIC16F636/639

FIGURE 15-8:

TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS

T0CKI

40

41

42

T1CKI

TMR0 or

TMR1

45

46

47

48

TABLE 15-5: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS

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

T0CKI Low Pulse Width

No Prescaler

0.5 TCY + 20 —

—

ns

With Prescaler

10

—

—

ns

42* TT0P

T0CKI Period

Greater of:

—

—

ns N = prescale

20 or TCY + 40

value (2, 4,...,

N

256)

45* TT1H

T1CKI High

Time

Synchronous, No Prescaler

Synchronous, with Prescaler

0.5 TCY + 20 —

—

ns

15

—

—

ns

Asynchronous

30

—

—

ns

46* TT1L

T1CKI Low Time Synchronous, No Prescaler

0.5 TCY + 20 —

—

ns

Synchronous, with Prescaler

15

—

—

ns

Asynchronous

30

—

—

ns

47* TT1P

T1CKI Input

Period

Synchronous

Greater of:

—

—

ns N = prescale

30 or TCY + 40

value (1, 2, 4, 8)

N

Asynchronous

60

—

—

ns

48

FT1

Timer1 Oscillator Input Frequency Range

(oscillator enabled by setting bit T1OSCEN)

DC

— 200* kHz

49

TCKEZTMR1 Delay from External Clock Edge to Timer

increment

2 TOSC*

— 7 TOSC* —

* These parameters are characterized but not tested.

† Data in ‘Typ’ column is at 5.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are

not tested.

DS41232B-page 166

Preliminary

© 2005 Microchip Technology Inc.

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