Datasheet

 1999 Microchip Technology Inc. DS40139E-page 73
PIC12C5XX
TABLE 11-5: RESET, WATCHDOG TIMER, AND DEVICE RESET TIMER - PIC12C508/C509
TABLE 11-6: DRT (DEVICE RESET TIMER PERIOD - PIC12C508/C509)
AC Characteristics Standard Operating Conditions (unless otherwise specified)
Operating Temperature 0°C ≤ T
A ≤ +70°C (commercial)
–40°C ≤ T
A ≤ +85°C (industrial)
–40°C ≤ T
A ≤ +125°C (extended)
Operating Voltage V
DD range is described in Section 11.1
Parameter
No. Sym Characteristic Min Typ
(1)
Max Units Conditions
30
TmcL MCLR Pulse Width (low) 2000* — — ns VDD = 5 V
31
Twdt Watchdog Timer Time-out Period
(No Prescaler)
9* 18* 30* ms VDD = 5 V (Commercial)
32
TDRT Device Reset Timer Period
(2)
9* 18* 30* ms VDD = 5 V (Commercial)
34
TioZ I/O Hi-impedance from MCLR Low — — 2000* ns
* 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.
Note 2: See Table 11-6.
Oscillator Configuration POR Reset Subsequent Resets
IntRC & ExtRC 18 ms (typical) 300 µs (typical)
XT & LP 18 ms (typical) 18 ms (typical)