PIC16LC62B-04E/SO View Datasheet(PDF) - Microchip Technology
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Description
Manufacturer
PIC16LC62B-04E/SO Datasheet PDF : 120 Pages
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PIC16C62B/72A
FIGURE 13-9: TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
T0CKI
T1OSO/T1CKI
40
41
42
45
46
47
48
TMR0 or
TMR1
Note: Refer to Figure 13-4 for load conditions.
TABLE 13-5: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
Param
No.
Sym
Characteristic
Min
Typ† Max Units
Conditions
40*
Tt0H
T0CKI High Pulse Width
No Prescaler
With Prescaler
0.5TCY + 20
10
— — ns Must also meet
—
—
ns parameter 42
41*
Tt0L
T0CKI Low Pulse Width
No Prescaler
With Prescaler
0.5TCY + 20
10
— — ns Must also meet
—
—
ns parameter 42
42*
Tt0P
T0CKI Period
No Prescaler
TCY + 40
— — ns
With Prescaler
Greater of:
20 or TCY + 40
N
— — ns N = prescale value
(2, 4,..., 256)
45*
Tt1H
T1CKI High Time
Synchronous, Prescaler = 1
Synchronous,
Prescaler =
2,4,8
PIC16CXX
PIC16LCXX
0.5TCY + 20
15
25
— — ns Must also meet
—
—
ns parameter 47
— — ns
Asynchronous PIC16CXX
30
— — ns
PIC16LCXX
50
— — ns
46*
Tt1L
T1CKI Low Time
Synchronous, Prescaler = 1
Synchronous,
Prescaler =
2,4,8
PIC16CXX
PIC16LCXX
0.5TCY + 20
15
25
— — ns Must also meet
—
—
ns parameter 47
— — ns
Asynchronous PIC16CXX
30
— — ns
PIC16LCXX
50
— — ns
47*
Tt1P
T1CKI input period Synchronous PIC16CXX
GREATER OF:
30 OR TCY + 40
N
— — ns N = prescale value
(1, 2, 4, 8)
PIC16LCXX
GREATER OF:
50 OR TCY + 40
N
N = prescale value
(1, 2, 4, 8)
Asynchronous PIC16CXX
60
— — ns
PIC16LCXX
100
— — ns
Ft1
Timer1 oscillator input frequency range
(oscillator enabled by setting bit T1OSCEN)
DC
— 200 kHz
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.
© 1998 Microchip Technology Inc.
Preliminary
DS35008B-page 93
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