PIC16F54T-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F54T-I/SO

Flash-Based, 8-Bit CMOS Microcontroller Series

Microchip Technology 

PIC16F5X

FIGURE 11-5:

RESET, WATCHDOG TIMER, AND DEVICE RESET TIMER TIMING -– PIC16F5X

VDD

MCLR

Internal

POR

32

DRT

Time-out

Internal

RESET

Watchdog

Timer

Reset

30

32

34

I/O pin(1)

Note 1: Please refer to Figure 11-2 for load conditions.

32

31

34

TABLE 11-3: RESET, WATCHDOG TIMER AND DEVICE RESET TIMER – PIC16F5X

AC CHARACTERISTICS

Standard Operating Conditions (unless otherwise specified)

Operating Temperature -40°C ≤ TA ≤ +85°C for industrial

-40°C ≤ TA ≤ +125°C for extended

Param

No.

Sym.

Characteristic

Min. Typ† Max. Units

Conditions

30 TMCL MCLR Pulse Width (low)

2000* — — ns VDD = 5.0V

31 TWDT Watchdog Timer Time-out Period 9.0* 18* 30* ms VDD = 5.0V (industrial)

(No Prescaler)

9.0* 18* 40*

VDD = 5.0V (extended)

32

TDRT Device Reset Timer Period

9.0* 18* 30* ms VDD = 5.0V (industrial)

9.0* 18* 40*

VDD = 5.0V (extended)

34 TIOZ I/O high-impedance from MCLR 100* 300* 2000* ns

Low

* These parameters are characterized but not tested.

† Data in the Typical (“Typ”) column is at 5.0V, 25°C unless otherwise stated. These parameters are for

design guidance only and are not tested.

DS41213D-page 66

© 2007 Microchip Technology Inc.

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