PIC16LC925T-I/CL View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
PIC16LC925T-I/CL Datasheet PDF : 182 Pages
| |||
PIC16C925/926
FIGURE 15-8:
TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
RA4/T0CKI
RC0/T1OSO/T1CKI
40
41
42
45
46
TMR0 or
TMR1
47
48
Note: Refer to Figure 15-4 for load conditions.
TABLE 15-6: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
Param
No.
Symbol
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 value
20 or TCY + 40
N
(2, 4,..., 256)
45
Tt1H
T1CKI High Synchronous, Prescaler = 1
0.5TCY + 20 — — ns Must also meet
Time
Synchronous, PIC16C925/926
15
— — ns parameter 47
Prescaler =
2,4,8
PIC16LC925/926
25
— — ns
Asynchronous PIC16C925/926
30
— — ns
PIC16LC925/926
50
— — ns
46
Tt1L
T1CKI Low Synchronous, Prescaler = 1
0.5TCY + 20
— — ns
Time
Synchronous, PIC16C925/926
15
— — ns
Prescaler =
2,4,8
PIC16LC925/926
25
—
—
ns
Must also meet
parameter 47
Asynchronous PIC16C925/926
30
— — ns
PIC16LC925/926
50
— — ns
47
Tt1P
T1CKI Input Synchronous PIC16C925/926
Period
Greater of:
30 or TCY + 40 — —
N
ns
N = prescale value
(1, 2, 4, 8)
PIC16LC925/926
Greater of:
50 or TCY + 40
N
N = prescale value
(1, 2, 4, 8)
Asynchronous PIC16C925/926
60
— — ns
PIC16LC925/926
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 —
† Data in "Typ" column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only and are not
tested.
DS39544A-page 150
Preliminary
2001 Microchip Technology Inc.
Share Link: 