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Microchip PIC16F876A Board with Bootloader, RS232 US$17.00

Microchip PIC16F876A Board with Bootloader, RS232

The BLC876A consists of the SBC28PC-IR2 fully assembled Single Board Computer with a 20MHz crystal and a PIC16F876A microcontroller. The PIC is programmed with the free bootloader from Microchip.

No special programming hardware is required to get your code working this board. All you'll need is a 9-pin serial port on your PC and a CAB3S6FT 3-to-9-pin serial cable.

  • Connect the board to your computer via a CAB3S6FT serial cable (sold separately).
  • Download the zipped Bootloader PC software and unzip it to a folder on your computer.
  • Start the PICbootPlus.exe program, and set for 56000 Baud and correct COM port.
  • Load the target hex file you want to program the PIC with (click Search button).
  • Click on the Write button and apply power to the board. The PIC will be programmed with the given hex file.
  • After resetting the board, the new program will be executed.

Note: The CAB3S6FT serial port cable is not included in this package, but is required to use the bootloader unless you make your own cable. This six-foot cable has a 9-pin Sub-D female connector on one side and a 3-pin Molex plug on the other. The cable connects to the 3-pin Molex connector on this PIC board. You may add the cable to your order using the option box below.

PIC16F876A Bootloader Board Features

  • 14.3 kBytes of Flash program memory
  • 368 Bytes of SRAM
  • 256 Bytes of EEPROM
  • 5 MIPS instruction cycle -- 20MHz crystal
  • 22 free I/O pins
  • 5 Analog inputs with 10-bit accuracy
  • 2 Analog comparators
  • 2 PWM (CCP) modules
  • SPI and I2C bus
  • Two 8-bit timers and one 16-bit timer
  • Brown Out Detection circuitry
  • Watchdog timer
  • Low-power modes
  • CPU has built-in circuitry for in-circuit debugging
  • 3-pin single line Molex connector with RS232 TX, RS232 RX and GND pins. The CAB3S6FT serial cable connects to this.
  • Socket for optional CAN transceiver (such as Microchip MCP2551-I/P).
  • Operating voltage from 7V to 30V
  • 2.1mm power connector for standard DC transformer
  • 6-pin Micro-MaTch socket with Power, I2C and SPI signals
  • Power LED
  • Compact Daughter Board connector and pads for a Frontend connector to add expansion capability. (Frontend connectors are not installed.)
  • 5-pin 3.81mm terminal block (Phoenix) with RS232 (when CAN interface chip is removed) or CAN BUS signals, ground and external power. Matching screw terminal connector included. Spare connectors are available.
  • The power pin on the 5-pin terminal block connector can be connected to the board's unregulated power supply (the input of the 2.1mm power connector) via a strap. This can be used to:
    • Provide power for all other boards daisy chained to this one. For this to work this board must be powered via its 2.1mm power connector.
    • Obtain power for this board. In this case no power has to be supplied via the 2.1mm power connector.
The Micro-MaTch connector allows you to use this board to drive one of the LCD2S- Serial LCD displays found in our LCD Displays category. Multiple I2C devices can be daisy-chained together using the Micro-MaTch connector.

Build an Enclosed System

Using the Compact Daughterboard connector, this RS232 and CAN board can be used as a control module for the Input-Output-Relay Board, which comes in a sturdy enclosure.

You also can make a fully enclosed system by connecting this board to the Add-on Prototyping Board with 10 I/O Ports or the Add-on Prototyping Board with 24 I/O Ports, each of which also comes in an enclosure.

Optional In-Circuit Serial Programming Adapters

PIC ICSP Board Connector to DIL Adapter Set, In-Circuit Programming Adapter Set for connecting this PIC board's ICSP connector to out-of-circuit PIC chip programmers with a DIP/ZIF socket.

PIC ICSP Adapter, 6-pin Single Row to RJ12 and 2mm 2x4 Header, In-Circuit Programming Adapter for connecting this PIC board's ICSP connector to the debuggers programmers with RJ12 jack or single row square post headers.

Optional Daughterboards and In-Circuit Debugging Connections

This board features connectors for either attaching a daughterboard, or using this board as a daughterboard on a larger add-on board. It also features a 2x4-pin in-circuit programming header. For details on these options, see the description of the SBC28PC-IR2 board on which this product is based.

PIC16F876A Bootloader Board Resources

Optional Recommended Products for this Item
PIC ICSP Adapter, 6-pin Single Row to RJ12 and 2mm 2x4 Header+ US$9.50
Power Supply 3-12V DC, U.S. plug, 6 connection tips+ US$10.00
Power Supply 3-12V DC, US/UK/Euro/AU Plugs, 100-240VAC+ US$10.90
Front-End: 4x In, 2x Relay for PIC Boards+ US$4.00
Serial Cable for PIC SBC Boards+ US$6.00

This product was added to our catalog on Monday 26 March, 2007.


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