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Northern Software Supported Devices PIC16LF PIC16LF1454 PIC16LF1455 PIC16LF1459 PIC16LF1503 PIC16LF1507 PIC16LF1508 PIC16LF1509 PIC16LF1512 PIC16LF1513 PIC16LF1516 PIC16LF1517 PIC16LF1518 PIC16LF1519 PIC16LF1526 PIC16LF1527 PIC16LF15313 PIC16LF15323 PIC16LF15324 PIC16LF15325 PIC16LF15344 PIC16LF15345 PIC16LF15354 PIC16LF15355 PIC16LF15356 PIC16LF15375 PIC16LF15376 PIC16LF15385 PIC16LF15386 PIC16LF1554 PIC16LF1559 PIC16LF1566 PIC16LF1567 PIC16LF1574 PIC16LF1575 PIC16LF1578 PIC16LF1579 PIC16LF1613 PIC16LF1614 PIC16LF1615 PIC16LF1618 PIC16LF1619 PIC16LF1703 PIC16LF1704 PIC16LF1705 PIC16LF1707 PIC16LF1708 PIC16LF1709 PIC16LF1713 PIC16LF1716 PIC16LF1717 PIC16LF1718 PIC16LF1719 PIC16LF1764 PIC16LF1765 PIC16LF1768 PIC16LF1769 PIC16LF1773 PIC16LF1776 PIC16LF1777 PIC16LF1778 PIC16LF1779 PIC16LF1782 PIC16LF1783 PIC16LF1784 PIC16LF1786 PIC16LF1787 PIC16LF1788

PIC16LF1789

PIC16LF1823 PIC16LF1824 PIC16LF1824T39A PIC16LF1825 PIC16LF1826 PIC16LF1827 PIC16LF1828 PIC16LF1829 PIC16LF18313 PIC16LF18323 PIC16LF18324 PIC16LF18325 PIC16LF18326 PIC16LF18344 PIC16LF18345 PIC16LF18346 PIC16LF18355 PIC16LF18424 PIC16LF18356 PIC16LF18425 PIC16LF18426 PIC16LF18444 PIC16LF18445 PIC16LF18446 PIC16LF18455 PIC16LF18456 PIC16LF1847 PIC16LF18854 PIC16LF18855 PIC16LF18856 PIC16LF18857 PIC16LF18875 PIC16LF18876 PIC16LF18877 PIC16LF1902 PIC16LF1903 PIC16LF1904 PIC16LF1906 PIC16LF1907 PIC16LF19155 PIC16LF19156 PIC16LF19175 PIC16LF19176 PIC16LF19185 PIC16LF19186 PIC16LF19195 PIC16LF19196 PIC16LF19197 PIC16LF1933 PIC16LF1934 PIC16LF1936 PIC16LF1937 PIC16LF1938 PIC16LF1939 PIC16LF1946 PIC16LF1947 PIC16LF627 PIC16LF627A PIC16LF628 PIC16LF628A PIC16LF648A PIC16LF818 PIC16LF819 PIC16LF87 PIC16LF870 PIC16LF871 PIC16LF872 PIC16LF873 PIC16LF873A PIC16LF874 PIC16LF874A PIC16LF876 PIC16LF876A PIC16LF877 PIC16LF877A PIC16LF88

PIC16LF1789

Support summary

  • Programming - Yes
  • Debugging provisions - Yes
ICSP connection

 

ICSP Connection

All VSS and VDD pins must be connected. Even if one of these pins is not connected, programming may fail.

 

LVP Limitations

Since NSDSP is a Low-Voltage Programmer (LVP), it can only program PIC devices if LVP configuration bit is enabled. Fresh (unprogrammed) devices have LVP bit set and therefore they can be programmed. It is impossible to disable LVP bit during LVP programming, but if the device has been previously programmed with HVP programmer, the LVP bit may have been disabled.

When brown-out is enabled with BOREN configuration bit, LVP is only possible when the VDD voltage is above the brown-out threshold.

These limitations may be avoided with High-Voltage Programming (HVP), however NSDSP requires an external circuit for HVP.

 

Target Voltage Below 2.7V

If voltage is less than 2.7V programming is severely limited - it is impossible to bulk erase the device, it is also impossible to erase configuration bits, EEPROM.

NSDSP cannot detect target voltage and it assumes that the voltage is above 2.7V. If the actual target voltage is less, programming will fail. However, if you tell NSDSP that the target voltage is below 2.7V through programming software, NSDSP will use special low-voltage programming mode. In this mode, NSDSP verifies if the desired programming can be performed at voltages below 2.7V, and if it is possible (device is not code protected, configuration bits do not change or only change from 1 to 0, EEPROM is not programmed), it performs the programming. If such programming is impossible, NSDSP software will stop and show an error message.

Programming in low-voltage mode may be considerably slower. In addition, you may need to decrease programming speed to 3MHz or below.

 

Programming Benchmarks

We have measured time necessary to program and verify PIC16LF1789.

Operation Time
Programming and Verification 2.1s
Programming only 1.5s
Verification only 0.6s

The measurements reflect the time necessary to program/verify the entire chip, including all user programmable memory areas and very slow data EEPROM.

 

Debugging

NSDSP firmware contains all the necessary provisions for debugging PIC16LF1789 and may be debugged when debugging software becomes available.

 

Links

Microchip PIC16LF1789 page

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