PIC16F628 datasheet(29/170 Pages) MICROCHIP

29 / 170 page

 2003 Microchip Technology Inc.

Preliminary

DS40300C-page 27

PIC16F62X

4.0

GENERAL DESCRIPTION

The PIC16F62X are 18-Pin FLASH-based members of

the versatile PIC16CXX family of low cost, high perfor-

mance, CMOS, fully static, 8-bit microcontrollers.

All PICmicro® microcontrollers employ an advanced

RISC architecture. The PIC16F62X have enhanced

core features, eight-level deep stack, and multiple

internal and external interrupt sources. The separate

instruction and data buses of the Harvard architecture

allow a 14-bit wide instruction word with the separate 8-

bit wide data. The two-stage instruction pipeline allows

all instructions to execute in a single cycle, except for

program branches (which require two cycles). A total of

35 instructions (reduced instruction set) are available.

Additionally, a large register set gives some of the

architectural innovations used to achieve a very high

performance.

PIC16F62X microcontrollers typically achieve a 2:1

code compression and a 4:1 speed improvement over

other 8-bit microcontrollers in their class.

PIC16F62X devices have special features to reduce

external components, thus reducing system cost,

enhancing system reliability and reducing power con-

sumption.

The PIC16F62X has eight oscillator configurations.

The single pin ER oscillator provides a low cost solu-

tion. The LP oscillator minimizes power consumption,

XT is a standard crystal, INTRC is a self-contained

internal oscillator. The HS is for High Speed crystals.

The EC mode is for an external clock source.

The SLEEP (Power-down) mode offers power savings.

The user can wake-up the chip from SLEEP through

several external interrupts, internal interrupts, and

RESETS.

A highly reliable Watchdog Timer with its own on-chip

RC oscillator provides protection against software lock-

up.

Table 4-1 shows the features of the PIC16F62X mid-

range microcontroller families.

A simplified block diagram of the PIC16F62X is shown

in Figure 2.1.

The PIC16F62X series fits in applications ranging from

battery chargers to low power remote sensors. The

FLASH technology makes customization of application

programs (detection levels, pulse generation, timers,

etc.) extremely fast and convenient. The small footprint

packages make this microcontroller series ideal for all

applications with space limitations. Low cost, low

power, high performance, ease of use and I/O flexibility

make the PIC16F62X very versatile.

4.1

Development Support

The PIC16F62X family is supported by a full featured

macro assembler, a software simulator, an in-circuit

emulator, a low cost development programmer and a

full-featured programmer. A Third Party “C” compiler

support tool is also available.

TABLE 4-1:

PIC16F62X FAMILY OF DEVICES

PIC16F627

PIC16F628

PIC16LF627

PIC16LF628

Clock

Maximum Frequency of Operation

(MHz)

FLASH Program Memory (words)

1024

2048

1024

2048

Memory

RAM Data Memory (bytes)

224

EEPROM Data Memory (bytes)

128

Timer Module(s)

TMR0, TMR1, TMR2

Comparator(s)

Peripherals

Capture/Compare/PWM modules

Serial Communications

USART

Internal Voltage Reference

Yes

Interrupt Sources

I/O Pins

Features

Voltage Range (Volts)

3.0-5.5

2.0-5.5

Brown-out Detect

Yes

Packages

18-pin DIP, SOIC,

20-pin SSOP

18-pin DIP, SOIC,

20-pin SSOP

18-pin DIP, SOIC,

20-pin SSOP

18-pin DIP, SOIC,

20-pin SSOP

All PICmicro® Family devices have Power-on Reset, selectable Watchdog Timer, selectable code protect and high I/O current capability. All

PIC16F62X Family devices use serial programming with clock pin RB6 and data pin RB7.

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