PIC 16F88 Architecture

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Author: Jeff + Claude AI

Date: 26th May 2026

Description: Dive deep into the inner workings of one of Microchip's most enduring mid-range microcontrollers with this thorough architectural guide to the PIC 16F88. From memory organization and the CPU core to bank switching, oscillator configuration, and the full peripheral suite of timers, USART, and analog modules, each chapter unpacks the design decisions that shape how this chip thinks and behaves. Rounded out with clear treatments of interrupts, resets, and power management, it's an essential companion for hobbyists, students, and embedded developers who want to truly understand the silicon beneath their code.

Summary

Ch1. Origins and Context: The Mid-Range PIC Lineage

PIC 16F88 Architecture

Summary

Ch1. Origins and Context: The Mid-Range PIC Lineage

Ch2. Memory Organization: Program, Data, and Configuration

Ch3. The CPU Core: ALU, W Register, and Instruction Pipeline

Ch4. Register File and Bank Switching

Ch5. The Oscillator System: Clock Sources and Configuration

Ch6. Peripheral Suite: Timers, USART, and Analog Modules

Ch7. Interrupt Architecture and Execution Flow

Ch8. Power Management, Reset Sources, and Practical Considerations