PIC16C765 Microchip Technology Inc., PIC16C765 Datasheet - Page 137

• Manufacturer Part Number: PIC16C765
• Description: 8-bit Cmos Microcontrollers With Usb
• Manufacturer: Microchip Technology Inc.

FIGURE 16-8: TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
TABLE 16-5:
40*
41*
42*
45*
46*
47*
48
Param
2000 Microchip Technology Inc.
No.
* 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.
T1OSO/T1CKI
Note: Refer to Figure 16-2 for load conditions.
T
T
T
T
T
T
F
TCKEZ
T
T
T
T
T
T
T
TMR0 or
TMR1
0H
0L
0P
1H
1L
1P
1
Sym
TMR
T0CKI
TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
1 Delay from external clock edge to timer increment
T0CKI High Pulse Width No Prescaler
T0CKI Low Pulse Width No Prescaler
T0CKI Period
T1CKI High Time
T1CKI Low Time
T1CKI input period
Timer1 oscillator input frequency range
(oscillator enabled by setting bit T1OSCEN)
Characteristic
With Prescaler
With Prescaler
No Prescaler
With Prescaler
Synchronous, Prescaler = 1
Synchronous,
Prescaler = 2,4,8
Asynchronous
Synchronous, Prescaler = 1
Synchronous,
Prescaler = 2,4,8
Asynchronous
Synchronous
Asynchronous
40
45
Preliminary
42
47
Greater of:
20 or T
Greater of:
30 or T
41
46
0.5 T
0.5 T
0.5 T
0.5 T
T
CY
2Tosc
Min
DC
CY
CY
CY
CY
10
10
15
30
15
30
60
CY
CY
+ 40
+ 20
+ 20
+ 20
+ 20
PIC16C745/765
+ 40
N
+ 40
N
Typ† Max Units
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
48
7Tosc
200
—
—
—
—
—
—
—
—
—
—
—
—
—
—
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
—
DS41124C-page 137
Must also meet
parameter 42
Must also meet
parameter 42
N = prescale value
(2, 4,..., 256)
Must also meet
parameter 47
Must also meet
parameter 47
N = prescale value
(1, 2, 4, 8)
Conditions