Microchip Technology MCP1630DM-DDBS1 Data Sheet
PIC12F683
DS41211D-page 130
©
2007 Microchip Technology Inc.
FIGURE 15-8:
TIMER0 AND TIMER1 EXTERNAL CLOCK TIMINGS
TABLE 15-5:
TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
Standard Operating Conditions (unless otherwise stated)
Operating Temperature
Operating Temperature
-40°C
≤
T
A
≤
+125°C
Param
No.
Sym
Characteristic
Min
Typ†
Max
Units
Conditions
40*
T
T
0H
T0CKI High Pulse Width
No Prescaler
0.5 T
CY
+ 20
—
—
ns
With Prescaler
10
—
—
ns
41*
T
T
0L
T0CKI Low Pulse Width
No Prescaler
0.5 T
CY
+ 20
—
—
ns
With Prescaler
10
—
—
ns
42*
T
T
0P
T0CKI Period
Greater of:
20 or T
CY
+ 40
N
—
—
ns
N = prescale value
(2, 4, ..., 256)
(2, 4, ..., 256)
45*
T
T
1H
T1CKI High
Time
Time
Synchronous, No Prescaler
0.5 T
CY
+ 20
—
—
ns
Synchronous,
with Prescaler
with Prescaler
15
—
—
ns
Asynchronous
30
—
—
ns
46*
T
T
1L
T1CKI Low
Time
Time
Synchronous, No Prescaler
0.5 T
CY
+ 20
—
—
ns
Synchronous,
with Prescaler
with Prescaler
15
—
—
ns
Asynchronous
30
—
—
ns
47*
T
T
1P
T1CKI Input
Period
Period
Synchronous
Greater of:
30 or T
CY
+ 40
N
—
—
ns
N = prescale value
(1, 2, 4, 8)
(1, 2, 4, 8)
Asynchronous
60
—
—
ns
48
F
T
1
Timer1 Oscillator Input Frequency Range
(oscillator enabled by setting bit T1OSCEN)
(oscillator enabled by setting bit T1OSCEN)
—
32.768 —
kHz
49*
TCKEZ
TMR
1 Delay from External Clock Edge to Timer
Increment
2 T
OSC
—
7 T
OSC
—
Timers in Sync
mode
mode
*
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.
tested.
T0CKI
T1CKI
40
41
42
45
46
47
49
TMR0 or
TMR1
TMR1