PIC16LF628A
PIC16LF648A PIC16LF720 PIC16LF721 PIC16LF722 PIC16LF722A PIC16LF723 PIC16LF723A PIC16LF724 PIC16LF726 PIC16LF727 PIC16LF818 PIC16LF819 PIC16LF87 PIC16LF870 PIC16LF871 PIC16LF872 PIC16LF873 PIC16LF873A PIC16LF874 PIC16LF874A PIC16LF876 PIC16LF876A PIC16LF877 PIC16LF877A PIC16LF88PIC16LF628A
Support summary
ICSP Connection
Programming is impossible at voltages below 4.5V.
LVP Programming
Low-Voltage Programming (LVP) can only be used for these PIC devices if the 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). NSDSP-2 can generate high voltage for HVP internally. NSDSP-1 cannot, therefore NSDSP-1 requires an external circuit for HVP.
HVP Programming
NSDSP-2 can generate 12 V voltage internally, and therefore can programPIC16LF628A with HVP.
With NSDSP-1, HVP programming is possible, but only with an external HVP circuit.
NSHVX will not work with PIC16LF628A because NSHVX produces 9 V high voltage, but this chip requires at least 11 V. If you need NSHVX version which produces 12 V and is suitable for this PIC, please contact us.
Microchip HVP programming specifications for PIC16LF628A require that VPP is applied to MCLR before VDD. Since NSDSP does not have any control of VDD, this requirement cannot be satisfied, however, in our tests the HVP programming has succeeded even without VDD manipulation. Therefore, NSDSP software, starting release 126, supports HVP programming for PIC16LF628A.
Be careful. It is possible to brick PIC16LF628A with HVP programming if each of these three conditions is met:
Debugging
NSDSP cannot be used to debug PIC16LF628A.
Links
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