Microcontroller IC 8-Bit 20MHz 3.5KB (2K x 14) FLASH 18-SOIC PIC16F628A-I/SO

GENERAL DESCRIPTION

The PIC16F627A/628A/648A are 18-pin Flash-based

members of the versatile PIC16F627A/628A/648A

family of low-cost, high-performance, CMOS, fullystatic,

8-bit microcontrollers.

All PIC® microcontrollers employ an advanced RISC

architecture. The PIC16F627A/628A/648A have

enhanced core features, an 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 singlecycle,

except for program branches (which require two

cycles). A total of 35 instructions (reduced instruction

set) are available, complemented by a large register

set.

PIC16F627A/628A/648A microcontrollers typically

achieve a 2:1 code compression and a 4:1 speed

improvement over other 8-bit microcontrollers in their

class.

PIC16F627A/628A/648A devices have integrated

features to reduce external components, thus reducing

system cost, enhancing system reliability and reducing

power consumption.

The PIC16F627A/628A/648A has 8 oscillator

configurations. The single-pin RC oscillator provides a

low-cost solution. The LP oscillator minimizes power

consumption, XT is a standard crystal, and INTOSC is

a self-contained precision two-speed internal oscillator.

The HS mode is for High-Speed crystals. The EC mode

is for an external clock source.

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

Users 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 lockup.

Table 1-1 shows the features of the PIC16F627A/628A/

648A mid-range microcontroller family.

A simplified block diagram of the PIC16F627A/628A/

648A is shown in Figure 3-1.

The PIC16F627A/628A/648A series fits in applications

ranging from battery chargers to low power remote

sensors. The Flash technology makes customizing

application programs (detection levels, pulse generation,

timers, etc.) extremely fast and convenient. The

small footprint packages makes 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 PIC16F627A/628A/648A

very versatile.

High-Performance RISC CPU:

• Operating speeds from DC – 20 MHz

• Interrupt capability

• 8-level deep hardware stack

• Direct, Indirect and Relative Addressing modes

• 35 single-word instructions:

- All instructions single cycle except branches

Special Microcontroller Features:

• Internal and external oscillator options:

- Precision internal 4 MHz oscillator factory

calibrated to ±1%

- Low-power internal 48 kHz oscillator

- External Oscillator support for crystals and

resonators

• Power-saving Sleep mode

• Programmable weak pull-ups on PORTB

• Multiplexed Master Clear/Input-pin

• Watchdog Timer with independent oscillator for

reliable operation

• Low-voltage programming

• In-Circuit Serial Programming™ (via two pins)

• Programmable code protection

• Brown-out Reset

• Power-on Reset

• Power-up Timer and Oscillator Start-up Timer

• Wide operating voltage range (2.0-5.5V)

• Industrial and extended temperature range

• High-Endurance Flash/EEPROM cell:

- 100,000 write Flash endurance

- 1,000,000 write EEPROM endurance

- 40 year data retention

Low-Power Features:

• Standby Current:

- 100 nA @ 2.0V, typical

• Operating Current:

- 12μA @ 32 kHz, 2.0V, typical

- 120μA @ 1 MHz, 2.0V, typical

• Watchdog Timer Current:

- 1μA @ 2.0V, typical

• Timer1 Oscillator Current:

- 1.2μA @ 32 kHz, 2.0V, typical

• Dual-speed Internal Oscillator:

- Run-time selectable between 4 MHz and

48 kHz

- 4μs wake-up from Sleep, 3.0V, typical

Peripheral Features:

• 16 I/O pins with individual direction control

• High current sink/source for direct LED drive

• Analog comparator module with:

- Two analog comparators

- Programmable on-chip voltage reference

(VREF) module

- Selectable internal or external reference

- Comparator outputs are externally accessible

• Timer0: 8-bit timer/counter with 8-bit

programmable prescaler

• Timer1: 16-bit timer/counter with external crystal/

clock capability

• Timer2: 8-bit timer/counter with 8-bit period

register, prescaler and postscaler

• Capture, Compare, PWM module:

- 16-bit Capture/Compare

- 10-bit PWM

• Addressable Universal Synchronous/Asynchronous

Receiver/Transmitter USART/SCI

Specification :

Product drawing:

Product show:

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