2011 Microchip Technology Inc.
Preliminary
DS41455B-page 7
PIC16LF1902/3
1.0
Device Overview .......................................................................................................................................................................... 9
2.0
Enhanced Mid-Range CPU ........................................................................................................................................................ 13
3.0
Memory Organization ................................................................................................................................................................. 15
4.0
Device Configuration .................................................................................................................................................................. 37
5.0
Resets ........................................................................................................................................................................................ 43
6.0
Oscillator Module........................................................................................................................................................................ 51
7.0
Interrupts .................................................................................................................................................................................... 61
8.0
Power-Down Mode (Sleep) ........................................................................................................................................................ 73
9.0
Watchdog Timer (WDT) ............................................................................................................................................................. 75
10.0 Flash Program Memory Control ................................................................................................................................................. 79
11.0 I/O Ports ..................................................................................................................................................................................... 95
12.0 Interrupt-on-Change ................................................................................................................................................................. 107
13.0 Fixed Voltage Reference (FVR) ............................................................................................................................................... 111
14.0 Temperature Indicator .............................................................................................................................................................. 113
15.0 Analog-to-Digital Converter (ADC) Module .............................................................................................................................. 115
16.0 Timer0 Module ......................................................................................................................................................................... 129
17.0 Timer1 Module ......................................................................................................................................................................... 133
18.0 Liquid Crystal Display (LCD) Driver Module............................................................................................................................. 145
19.0 In-Circuit Serial Programming (ICSP) ................................................................................................................................ 179
20.0 Instruction Set Summary .......................................................................................................................................................... 183
21.0 Electrical Specifications............................................................................................................................................................ 197
22.0 DC and AC Characteristics Graphs and Tables....................................................................................................................... 215
23.0 Development Support............................................................................................................................................................... 217
24.0 Packaging Information.............................................................................................................................................................. 221
Appendix A: Revision History............................................................................................................................................................. 231
Index .................................................................................................................................................................................................. 233
The Microchip Web Site..................................................................................................................................................................... 237
Customer Change Notification Service .............................................................................................................................................. 237
Customer Support.............................................................................................................................................................................. 237
Reader Response .............................................................................................................................................................................. 238
Product Identification System ............................................................................................................................................................ 239