Datasheet

PIC12F508/509/16F505
DS41236B-page 78 Preliminary © 2005 Microchip Technology Inc.
FIGURE 10-7: TIMER0 CLOCK TIMINGS – PIC12F508/509/16F505
TABLE 10-7: TIMER0 CLOCK REQUIREMENTS – PIC12F508/509/16F505
AC CHARACTERISTICS
Standard Operating Conditions (unless otherwise specified)
Operating Temperature -40°C ≤ T
A ≤ +85°C (industrial)
-40°C ≤ T
A ≤ +125°C (extended)
Operating Voltage V
DD range is described in
Section 10.1 "DC Characteristics"
Param
No.
Sym Characteristic Min Typ
(1)
Max Units Conditions
40 Tt0H T0CKI High Pulse
Width
No Prescaler 0.5 T
CY + 20* — — ns
With Prescaler 10* — — ns
41 Tt0L T0CKI Low Pulse
Width
No Prescaler 0.5 T
CY + 20* — — ns
With Prescaler 10* — — ns
42 Tt0P T0CKI Period 20 or TCY + 40* N — — ns Whichever is greater.
N = Prescale Value
(1, 2, 4,..., 256)
* These parameters are characterized but not tested.
Note 1: Data in the Typical (“Typ”) column is at 5V, 25°C unless otherwise stated. These parameters are for design
guidance only and are not tested.
T0CKI
40 41
42