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Tuesday, February 10, 2009

PIN configuration of PIC 16F877

PIN configuration of PIC 16F877
There is no other microcontroller that has programmable voltage,instrumentational, inverting, and non-inverting amplifiers.Hardware generators of pseudorandom and CRC code, as well as analogmodulators, are unique to PSoC families.MAC (Multiply-accumulate) is an essential part of digital signal processors,which allows implementation of digital signal processing algorithms. It’s worthnoting that hardware accumulator multiplication is not a common feature of 8-bitmicrocontrollers.
Having the advantage of changeable working voltage doesn’t really need acomment. This feature is particularly important for development of new devices as iteliminates the need for redesigning the PCB and implementing the level translator.Option for low voltage supply (~1V) is a tremendous advantage in batteryoperated systems.Timers, counters, and PWM units are more flexible than the usualimplementation.Automatic code writing for accessing all the peripherals in use.In case you need a larger array of components, there is an option for dynamicreconfiguration, allowing you to change peripherals during run-time. In this way, it’s possible to minimize the processor workload at a time, leaving the largest part of the job to the specialized hardware.
In systems which require highly precise or fast measurement, problems may occur with analog device characteristics. In this case, you should analyze if speed of ADconverters and offset/noise of analog amplifiers are able to satisfy the projectdemands.Analog components do not have the ability to work with usual negative supplyvoltage. For example, zero voltage for inverting amplifiers is taken to be the analogground AGND (usually 2.5V). All voltages above AGND are taken as positive, whilevoltages below AGND are taken as negative.

High-performance RISC CPU
 All single cycle instructions except for program branches which are 2 cycle
 Operating speed: DC - 20 MHz clock input DC - 200 ns instruction cycle
 Up to 8K x 14 words of Flash Program Memory,
 Up to 256 x 8 bytes of EEPROM data memory
 Pin out compatible to the PIC16C73/74/76/77
 Interrupt capability -up to 14 internal/external
 Eight level deep hardware stack
 Direct, indirect, and relative addressing modes
 Power-on Reset (POR)
 Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)
 Watchdog Timer (WDT) with its own on-chip RC Oscillator for reliable operation
 Programmable code-protection
 Power saving SLEEP mode
 Selectable oscillator options
 Low-power, high-speed CMOS EPROM/EEPROM technology
 Fully static design
 In-Circuit Serial Programming (ICSP) via two pins
 Only single 5V source needed for programming capability
 In-Circuit Debugging via two pins
 Processor read/write access to program memory
 Wide operating voltage range: 2.5V to 5.5V
 High Sink/Source Current: 25 mA
 Commercial and Industrial temperature ranges

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PIN Configuration: PIC16F877 (40pins) Vs. PIC18F4520 (40pins). MICROCONTROLLER PIC 16F877, Features, PIN diagram, PIN description
PIC16F876 and PIC16F877) covered by this data sheet. The PIC16F876/873 devices come in 28-pin packages and the PIC16F877/874 devices Interface by using Visual Basic6 program · RS232 connection · PIC 16F877 General using circuit · PIC16F877 Pin Diagram the pin diagram for the PIC16F877 microcontroller. Figure 3 shows how to connect either a ceramic resonator, or a quartz crystal PIC16F877 - 8 bit Microcontroller with 8 Bytes Flash Program Memory and A/D ... Pin Layout. PIC16F877 Microchip IC ... Microchip - Data Sheet for PIC16F877 First line: ic L293D PIN CONFIGURATION dc motor drive circuit pic16f877a Configuration. PIC16F877 can choose 4 protection code of PIC16F877 working on PIC12f683 numerous diagrams to explain the modules of PIC16F877 from the following two materials max232 rts cts MAX232 pin configuration pic 16f877 MAX232 16254 PIC16F877 dual 7-segment-display pin configuration PIC16F877 Free Projects use 16F877 PICS now for larger projects. ... Most engineers like to add a cap at pin 5 of the PIC and take the PIC side of the cap to ground ... The CONFIG word determines what initial features are activated on the PIC,

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