PIC16CR83 Datasheet

IC型号：
PIC16CR83
PDF描述：
18-pin Flash/EEPROM 8-Bit Microcontrollers
文件大小：
2018.18KB
PDF页数：
125页
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PIC16F8X

1.0

GENERAL DESCRIPTION

The PIC16F8X is a group in the PIC16CXX family of

low-cost, high-performance, CMOS, fully-static, 8-bit

microcontrollers. This group contains the following

devices:

鈥?/div>

PIC16F83

PIC16F84

PIC16CR83

PIC16CR84

Table 1-1 lists the features of the PIC16F8X. A simpli-

铿乪d block diagram of the PIC16F8X is shown in

Figure 3-1.

The PIC16F8X 铿乼s perfectly in applications ranging

from high speed automotive and appliance motor

control to low-power remote sensors, electronic locks,

security devices and smart cards. The Flash/EEPROM

technology makes customization of application

programs (transmitter codes, motor speeds, receiver

frequencies, security codes, etc.) extremely fast and

convenient. The small footprint packages make this

microcontroller series perfect for all applications with

space limitations. Low-cost, low-power, high

performance, ease-of-use and I/O 铿俥xibility make the

PIC16F8X very versatile even in areas where no

microcontroller use has been considered before

(e.g., timer functions; serial communication; capture,

compare and PWM functions; and co-processor

applications).

The serial in-system programming feature (via two

pins) offers 铿俥xibility of customizing the product after

complete assembly and testing. This feature can be

used to serialize a product, store calibration data, or

program the device with the current 铿乺mware before

shipping.

All PICmicro鈩?microcontrollers employ an advanced

RISC architecture. PIC16F8X devices 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 a separate

8-bit wide data bus. 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 is

used to achieve a very high performance level.

PIC16F8X microcontrollers typically achieve a 2:1 code

compression and up to a 4:1 speed improvement (at 20

MHz) over other 8-bit microcontrollers in their class.

The PIC16F8X has up to 68 bytes of RAM, 64 bytes of

Data EEPROM memory, and 13 I/O pins. A timer/

counter is also available.

The PIC16CXX family has special features to reduce

external components, thus reducing cost, enhancing

system reliability and reducing power consumption.

There are four oscillator options, of which the single pin

RC oscillator provides a low-cost solution, the LP

oscillator minimizes power consumption, XT is a

standard crystal, and the HS is for High Speed crystals.

The SLEEP (power-down) mode offers power saving.

The user can wake the chip from sleep through several

external and internal interrupts and resets.

A highly reliable Watchdog Timer with its own on-chip

RC oscillator provides protection against software lock-

up.

The devices with Flash program memory allow the

same device package to be used for prototyping and

production. In-circuit reprogrammability allows the

code to be updated without the device being removed

from the end application. This is useful in the

development of many applications where the device

may not be easily accessible, but the prototypes may

require code updates. This is also useful for remote

applications where the code may need to be updated

(such as rate information).

1.1

Family and Upward Compatibility

Those users familiar with the PIC16C5X family of

microcontrollers will realize that this is an enhanced

version of the PIC16C5X architecture. Please refer to

Appendix A for a detailed list of enhancements. Code

written for PIC16C5X devices can be easily ported to

PIC16F8X devices (Appendix B).

1.2

Development Support

The PIC16CXX 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 鈥淐鈥?compiler and fuzzy

logic support tools are also available.

漏

1998 Microchip Technology Inc.

DS30430C-page 3

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