PIC16F716-I-P Datasheet, PDF (104/136 Pages) Microchip Technology – 8-bit Flash-based Microcontroller with A/D Converter and Enhanced Capture/Compare/PWM

PIC16F716
FIGURE 12-8:
TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS⁽¹⁾
T0CKI
T1OSO/T1CKI
40
41
42
45
46
TMR0 or
TMR1
47
48
Note 1: Refer to Figure 12-3 for load conditions.
TABLE 12-5: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
Param
No.
Sym
Characteristic
Min
Typ† Max Units Conditions
40* Tt0H
T0CKI High Pulse Width
No Prescaler
0.5TCY + 20
— — ns Must also meet
With Prescaler
10
— — ns parameter 42
41* Tt0L
T0CKI Low Pulse Width
No Prescaler
0.5TCY + 20
— — ns Must also meet
With Prescaler
10
— — ns ^{parameter 42}
42* Tt0P
T0CKI Period
No Prescaler
TCY + 40
— — ns
With Prescaler
Greater of:
— — ns N = prescale
20 or TCY + 40
value
N
(2, 4,..., 256)
45* Tt1H
T1CKI High Time Synchronous, Prescaler = 1
0.5TCY + 20
— — ns Must also meet
Synchronous, Standard
15
— — ns parameter 47
Prescaler =
2,4,8
Asynchronous Standard
30
— — ns
46* Tt1L
T1CKI Low Time Synchronous, Prescaler = 1
0.5TCY + 20
— — ns Must also meet
Synchronous, Standard
15
— — ns ^{parameter 47}
Prescaler =
2,4,8
Asynchronous Standard
30
— — ns
47* Tt1P
T1CKI input
Synchronous Standard
Greater of:
— — ns N = prescale
period
30 OR TCY + 40
value (1, 2, 4, 8)
N
Asynchronous Standard
60
— — ns
Ft1
Timer1 oscillator input frequency range
32.768
— 32.768 kHz
(oscillator enabled by setting bit T1OSCEN)
48* TCKEZtmr1 Delay from external clock edge to timer increment
2Tosc
— 7Tosc —
* 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.
DS41206B-page 102
© 2007 Microchip Technology Inc.