PIC16F753 datasheet(149/230 Pages) MICROCHIP

149 / 230 page

 2013-2015 Microchip Technology Inc.

DS40001709C-page 149

PIC16F753/HV753

19.0

SPECIAL FEATURES OF THE

CPU

The PIC16F753/HV753 has a host of features intended

to maximize system reliability, minimize cost through

elimination of external components, provide power-

saving features and offer code protection.

These features are:

• Reset

- Power-on Reset (POR)

- Power-up Timer (PWRT)

- Brown-out Reset (BOR)

• Interrupts

• Watchdog Timer (WDT)

• Oscillator selection

• Sleep

• Code protection

• ID Locations

• In-Circuit Serial Programming™

The Power-up Timer (PWRT), which provides a fixed

delay of 64 ms (nominal) on power-up only, is designed

to keep the part in Reset while the power supply

stabilizes. There is also circuitry to reset the device if a

brown-out occurs, which can use the Power-up Timer

to provide at least a 64 ms Reset. With these functions-

on-chip, most applications need no external Reset

circuitry.

The Sleep mode is designed to offer a very low-current

Power-Down mode. The user can wake-up from Sleep

through:

• External Reset

• Watchdog Timer Wake-up

• An interrupt

Oscillator selection options are available to allow the

part to fit the application. The INTOSC options save

system cost, while the External Clock (EC) option

provides a means for specific frequency and accurate

clock sources. Configuration bits are used to select

various options (see Register 19-1).

19.1

Configuration Bits

The Configuration bits can be programmed (read as

‘0’), or left unprogrammed (read as ‘1’) to select various

device configurations as shown in Register 19-1.

These bits are mapped in program memory location

2007h.

Note:

Address 2007h is beyond the user program

memory space. It belongs to the special

configuration

memory

space

(2000h-

3FFFh), which can be accessed only during

programming. See the “PIC16F753/HV753

Flash

Memory

Programming

Specification”

(DS41686)

for

information.

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