PIC16F636T-I/SL(2005) View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F636T-I/SL
(Rev.:2005)

8/14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC12F635/PIC16F636/639

FIGURE 15-7:

BROWN-OUT DETECT TIMING AND CHARACTERISTICS

VDD

VBOD

(Device in Brown-out Detect)

(Device not in Brown-out Detect)

35

Reset (due to BOD)

64 ms Time-out(1)

Note 1: 64 ms delay only if PWRTE bit in Configuration Word register is programmed to ‘0’.

TABLE 15-4: 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)

2

—

— μs VDD = 5.0V, -40°C to +85°C

11

18

24 ms Extended temperature

31

TWDT Watchdog Timer Time-out Period 10

17

25 ms VDD = 5.0V, -40°C to +85°C

(no prescaler)

10

17

30 ms Extended temperature

32

TOST Oscillation Start-up Timer Period — 1024 TOSC — — TOSC = OSC1 period

33* TPWRT Power-up Timer Period

28*

TBD

64

TBD

132* ms VDD = 5.0V, -40°C to +85°C

TBD ms Extended Temperature

34

TIOZ I/O High-impedance from MCLR —

—

2.0 μs

Low or Watchdog Timer Reset

35

VBOD Brown-out Detect Voltage

2.025

—

2.175 V

36

TBOD Brown-out Detect Pulse Width 100*

—

— μs VDD ≤ VBOD (D005)

Legend: TBD = To Be Determined

* These parameters are characterized but not tested.

† Data in ‘Typ’ column is at 5.0V, 25°C unless otherwise stated. These parameters are for design guidance

only and are not tested.

© 2005 Microchip Technology Inc.

Preliminary

DS41232B-page 165

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