Microchip Technology Zena Dokumentacja Pobierz pdf (Strona 98)

PIC12F629/675

TABLE 12-4: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER,

AND BROWN-OUT DETECT REQUIREMENTS

Param

No.

Sym Characteristic Min Typ† Max Units Conditions

30 TMCL

MCLR Pulse Width (low)

TBD

—

TBD

—

TBD

μs

VDD = 5V, -40°C to +85°C

Extended temperature

31 TWDT Watchdog Timer Time-out

Period

(No Prescaler)

VDD = 5V, -40°C to +85°C

Extended temperature

32 TOST Oscillation Start-up Timer

Period

— 1024TOSC — — TOSC = OSC1 period

33* TPWRT Power-up Timer Period 28*

TBD

132*

TBD

VDD = 5V, -40°C to +85°C

Extended Temperature

34 TIOZ I/O Hi-impedance from MCLR

Low or Watchdog Timer Reset

— — 2.0 μs

BVDD Brown-out Detect Voltage 2.025 — 2.175 V

Brown-out Hysteresis TBD — — —

35 TBOD Brown-out Detect Pulse Width 100* — — μs VDD ≤ BVDD (D005)

* 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.

1 2 ... 93 94 95 96 97 98 99 100 101 102 103 ... 127 128

Brak uwag

Microchip Technology Zena Dokumentacja Strona 98