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| PIC12LF1612 Datasheet, PDF (1/38 Pages) Microchip Technology – HIGH-VOLTAGE ICSP PROGRAMMING | |||
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PIC12(L)F1612/16(L)F161X
PIC12(L)F1612/16(L)F161X Memory Programming Specification
This document includes the programming specifications for the following devices:
⢠PIC12F1612
⢠PIC16F1613
⢠PIC16F1614
⢠PIC16F1615
⢠PIC16F1618
⢠PIC16F1619
⢠PIC12LF1612
⢠PIC16LF1613
⢠PIC16LF1614
⢠PIC16LF1615
⢠PIC16LF1618
⢠PIC16LF1619
1.0 OVERVIEW
The devices can be programmed using either the high-voltage In-Circuit Serial Programming⢠(ICSPâ¢) method or the
low-voltage ICSP⢠method.
1.1 Hardware Requirements
1.1.1 HIGH-VOLTAGE ICSP PROGRAMMING
In High-Voltage ICSP⢠mode, these devices require two programmable power supplies: one for VDD and one for the
MCLR/VPP pin.
1.1.2 LOW-VOLTAGE ICSP PROGRAMMING
In Low-Voltage ICSP⢠mode, these devices can be programmed using a single VDD source in the operating range. The
MCLR/VPP pin does not have to be brought to a different voltage, but can instead be left at the normal operating voltage.
1.1.2.1 Single-Supply ICSP Programming
The LVP bit in Configuration Word 2 enables single-supply (low-voltage) ICSP programming. The LVP bit defaults to a
â1â (enabled) from the factory. The LVP bit may only be programmed to â0â by entering the High-Voltage ICSP mode,
where the MCLR/VPP pin is raised to VIHH. Once the LVP bit is programmed to a â0â, only the High-Voltage ICSP mode
is available and only the High-Voltage ICSP mode can be used to program the device.
Note 1: The High-Voltage ICSP mode is always available, regardless of the state of the LVP bit, by applying VIHH
to the MCLR/VPP pin.
2: While in Low-Voltage ICSP mode, MCLR is always enabled, regardless of the MCLRE bit, and the port
pin can no longer be used as a general purpose input.
ï£ 2013-2014 Microchip Technology Inc.
Preliminary
DS40001720C-page 1
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