Datasheet

PIC16F84A
DS35007C-page 58  2001-2013 Microchip Technology Inc.
FIGURE 9-9: TIMER0 CLOCK TIMINGS
TABLE 9-5: TIMER0 CLOCK REQUIREMENTS
RA4/T0CKI
40 41
42
Parameter
No.
Sym Characteristic Min Typ† Max Units Conditions
40 Tt0H T0CKI High Pulse
Width
No Prescaler 0.5T
CY + 20 — — ns
With Prescaler 50
30
—
—
—
—
ns
ns
2.0V  V
DD  3.0V
3.0V  V
DD  6.0V
41 Tt0L T0CKI Low Pulse
Width
No Prescaler 0.5T
CY + 20 — — ns
With Prescaler 50
20
—
—
—
—
ns
ns
2.0V  V
DD  3.0V
3.0V  V
DD  6.0V
42 Tt0P T0CKI Period T
CY + 40
N
— — ns N = prescale value
(2, 4, ..., 256)
† Data in "Typ" column is at 5.0V, 25C, unless otherwise stated. These parameters are for design guidance
only and are not tested.