Datasheet

PIC12C67X
DS30561C-page 104  1997-2013 Microchip Technology Inc.
FIGURE 12-8: TIMER0 CLOCK TIMINGS
TABLE 12-5: TIMER0 AND TIMER1 EXTERNAL CLOCK REQUIREMENTS
TABLE 12-6: GPIO PULL-UP RESISTOR RANGES
Param
No.
Sym Characteristic Min Typ† Max Units Conditions
40* Tt0H T0CKI High Pulse Width No Prescaler 0.5T
CY + 20 — — ns Must also meet
parameter 42
With Prescaler 10 — — ns
41* Tt0L T0CKI Low Pulse Width No Prescaler 0.5T
CY + 20 — — ns Must also meet
parameter 42
With Prescaler 10 — — ns
42* Tt0P T0CKI Period No Prescaler T
CY + 40 — — ns
With Prescaler Greater of:
20 or T
CY + 40
N
— — ns N = prescale
value (2, 4,...,
256)
48 TCKE2tmr1 Delay from external clock edge to timer
increment
2T
OSC —7Tos
c
—
* 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.
VDD (Volts)
Temperature (C) Min Typ Max Units
GP0/GP1
2.5 –40 38K 42K 63K 
25 42K 48K 63K 
85 42K 49K 63K 
125 50K 55K 63K 
5.5 –40 15K 17K 20K 
25 18K 20K 23K 
85 19K 22K 25K 
125 22K 24K 28K 
GP3
2.5 –40 285K 346K 417K 
25 343K 414K 532K 
85 368K 457K 532K 
125 431K 504K 593K 
5.5 –40 247K 292K 360K 
25 288K 341K 437K 
85 306K 371K 448K 
125 351K 407K 500K 
* These parameters are characterized but not tested.
Note: Refer to Figure 12-4 for load conditions.
41
42
40
GP2/T0CKI
TMR0