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LF1822 Datasheet(PDF) 1 Page - Microchip Technology |
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LF1822 Datasheet(HTML) 1 Page - Microchip Technology |
1 / 40 page 2010 Microchip Technology Inc. Advance Information DS41390C-page 1 This document includes the programming specifications for the following devices: 1.0 OVERVIEW The PIC16F/LF182X and PIC12F/LF1822 devices can be programmed using either the high-voltage In-Circuit Serial Programming™ (ICSP™) 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 ‘1’ (enabled) from the factory. The LVP bit may only be programmed to ‘0’ by entering the High- Voltage ICSP mode, where the MCLR/VPP pin is raised to VIHH. Once the LVP bit is programmed to a ‘0’, only the High-Voltage ICSP mode is available and only the High-Voltage ICSP mode can be used to program the device. • PIC12F1822 • PIC12LF1822 • PIC16F1823 • PIC16LF1823 • PIC16F1824 • PIC16LF1824 • PIC16F1825 • PIC16LF1825 • PIC16F1826 • PIC16LF1826 • PIC16F1827 • PIC16LF1827 • PIC16F1828 • PIC16LF1828 • PIC16F1829 • PIC16LF1829 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. PIC16F/LF182X/PIC12F/LF1822 Memory Programming Specification PIC16F/LF182X/PIC12F/LF1822 |
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