Reset, WDT, Power-up Timer, and Brown-Out Reset Specifications

Figure 1. Reset, Watchdog Timer, and Power-up Timer Timing
Note:
  1. 1.Asserted low.
Figure 2. Brown-out Reset Timing and Characteristics
Note:
  1. 1.Only if PWRTE bit in the Configuration Word register is programmed to ‘1’; 2 ms delay if PWRTE = 0.
Table 1.
Standard Operating Conditions (unless otherwise stated)
Param No. Sym. Characteristic Min. Typ. † Max. Units Conditions
RST01* TMCLR MCLR Pulse Width Low to ensure Reset 2 μs  
RST02* TIOZ I/O high-impedance from Reset detection 2 μs  
RST03 TWDT Watchdog Timer Time-out Period 16 ms 1:512 Prescaler
RST04* TPWRT Power-up Timer Period 65 ms PWRTS = ‘10’ (64 ms)
RST06 VBOR Brown-out Reset Voltage

2.4

1.8

2.8

1.9

3.0

2.0(1)

V

V

BORV = 0

BORV = 1

RST07 VBORHYS Brown-out Reset Hysteresis 40 mV  
RST08 TBORDC Brown-out Reset Response Time 3 μs  

* - These parameters are characterized but not tested.

† Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested.

Note:
  1. 1.This value corresponds to VBORMAX.