The PIC16F688 is a 14-pin, Flash-based 8-bit CMOS microcontroller from Microchip, featuring nanoWatt Technology for ultra-low power consumption. Compact yet powerful, it's well-suited for analog-intensive and energy-efficient embedded applications.

Key Features:

I/O Capabilities:

• 17 I/O pins and 1 input-only pin

• High current source/sink for direct LED driving

• Interrupt-on-change support

• Individually programmable weak pull-ups

• Ultra Low-Power Wake-Up (ULPWU) feature for minimal standby power use

Analog Comparator Module:

• 2 analog comparators

• On-chip programmable voltage reference (CVREF), based on a percentage of VDD

• Externally accessible comparator inputs/outputs

• Supports SR latch mode and Timer1 Gate Sync Latch

• Integrated fixed 0.6V reference for stable analog comparisons

Analog-to-Digital Converter (ADC):

• 10-bit resolution

• 12 input channels for accurate analog signal acquisition

Timer Module:

• 8-bit Timer/Counter

• Programmable 8-bit prescaler for customizable timing functions

The PIC16F688 offers a balanced mix of analog performance and low-power operation, making it ideal for applications such as sensor interfacing, portable devices, and smart control systems.