3s Lithium Battery Capacity Indicator

The PIC18F46K22-I/P PIC18F46K22 18F46K22 DIP-40 is a Microcontroller, high computational performance with the addition of high-endurance, flash program memory. On top of these features, introduces design enhancements that make these microcontrolle a logical choice for many high performance and power sensitive applications.



High-Performance RISC CPU



C Compiler optimized architecture/instruction set

Data EEPROM to 1024 bytes

Linear program memory addressing to 64 Kbytes

Linear data memory addressing to 4 Kbytes

Up to 16 MIPS operation

16-bit wide instructions, 8-bit wide data path

Priority levels for interrupts

31-level, software-accessible hardware stack

8 x 8 Single-Cycle Hardware Multiplier



Extreme Low-Power Management with nanoWatt XLP



Sleep mode: 100 nA, typical

Watchdog Timer: 500 nA, typical

Timer1 Oscillator: 500 nA @ typical 32 kHz Flexible Oscillator Structure

Precision 16 MHz internal oscillator block:



Factory calibrated to 1%

Software selectable frequencies range of 31 kHz to 16 MHz

64 MHz performance available using PLL

No external components required





Four Crystal modes up to 64 MHz

Two external Clock modes up to 64 MHz

4X Phase Lock Loop (PLL)

Secondary oscillator using Timer1 @ 32 kHz

Fail-Safe Clock Monitor: Allows for safe shutdown if peripheral clock stops

Two-Speed Oscillator Start-up



Special Microcontroller Features



Full 5.5V operation (PIC18F2XK22/4XK22)

Low voltage option available for 1.8V-3.6V operation (PIC18LF2XK22/4XK22)

Self-reprogrammable under software control

Power-on Reset (POR), Power-up Timer (PWRT), and Oscillator Start-up Timer (OST)

Programmable Brown-out Reset (BOR)

Extended Watchdog Timer (WDT) with on-chip oscillator and software enable

Programmable code protection

In-Circuit Serial Programming (ICSP) via two pins

In-Circuit Debug via two pins



Analog Features



Analog-to-Digital Converter (ADC) module:



10-bit resolution

17 analog input channels (PIC18F/LF2XK22)

28 analog input channels (PIC18F/LF4XK22)

Auto acquisition capability

Conveion available during Sleep





Programmable High/Low Voltage Detection (PLVD) module

Charge Time Measurement Unit (CTMU) for mTouch support:



Up to 28 channels for button, sensor, or slider input





Analog comparator module with:



Two rail-to-rail analog comparato

Comparator inputs and outputs externally accessible and configurable





Voltage reference module with:



Programmable On-chip Voltage Reference (CVREF) module (% of VDD)

Selectable on-chip fixed voltage reference







Peripheral Features



24/35 I/O pins and 1 input-only pin:



High current sink/source 25 mA/25 mA

Individually programmable weak pull-ups

Individually programmable interrupt-on-pin change





Three external interrupt pins

Up to seven Timer modules:



Up to four 16-bit time/counte with pre scaler

Up to three 8-bit time/counte

Dedicated, low-power Timer1 oscillator





Up to two Capture/Compare/PWM (CCP) modules

Up to three Enhanced Capture/Compare/PWM (ECCP) modules with:



One, two, or four PWM outputs

Selectable polarity

Programmable dead time

Auto-shutdown and Auto-restart

PWM output steering control





Two Master Synchronous Serial Port (MSSP) modules with two modes of operation:



3-wire SPI (supports all 4 SPI modes)

I2C Master and Slave modes (Slave mode with address masking)





Two Enhanced Univeal Synchronous Asynchronous Receiver Transmitter modules (EUSART):



Supports -232, -485, and LIN 2.0

Auto-Baud Detect

Auto Wake-up on Start bit







Documents







PIC18F46K22 DatasheetCheck the file.



 

Useful Links







Low Power Microchip’sYou can review our products.



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