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Home » NEWEST Products » New by Manufacturer » Microchip Technology » Core Independent Peripherals - Microchip
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Microchip Technology Core Independent Peripherals

Microchip Technology Core Independent Peripherals

Free Your Creativity with Core Independent Peripherals

Microchip Technology PIC Microcontrollers with Core Independent Peripherals enable designers to take 8-bit MCU performance to a new level. The offering includes a number of on-board modules designed to increase capability in any control system and provide impressive efficiency in embedded design. Core Independent Peripherals handle their tasks with no code or supervision from the CPU to maintain operation. As a result, they simplify the implementation of complex control systems and give designers the flexibility to innovate.

Features & Attributes

Core Independent Peripherals

Configurable Logic Cell (CLC)
Easily Create Custom Combination and Sequential Logic

The CLC provides custom combination and sequential logic. It also enables the on-chip interconnection of peripherals and I/O, thereby reducing external components, saving code space and adding functionality.

  • User configurable real time logic control
    • CLC configuration GUI for quick turn development
  • Combination Logic Functions
  • State Functions/Clock
    • D Flip-Flop, JK Flip-Flop D Latch, SR Latch
  • Input sources
    • Pins
    • Peripherals
  • Output available to:
    • External pins
    • Other peripherals
  • Operation while in Sleep
  • Increases on chip interconnection of peripherals and I/O
  • Integrates hardware functions and saves board space
  • Software control of Combination/Sequential Logic
  • Saves program code space and frees up CPU cycles

Example Applications
  • Data modulation
  • Power sequencing
  • Manchester/IrDA encoder
  • Event sequencing
  • Conditional signaling
  • General purpose logic
  • Customizable circuitry
CLC Designer: GUI to Simplify Design
Microchip CLC Designer

Example: Phase Shifted Data Modulator
Combination and Sequential logic can easily be designed using on-chip hardware.
Microchip Phase Shifted Data Modulator

Complementary Waveform Generator (CWG) / Complementary Output Generator (COG)

The CWG provides a complementary waveform with rising and falling edge dead band control, enabling high efficiency synchronous switching, with no processor overhead. The CWG also incorporates auto shutdown, auto restart, and can interface directly with other peripherals / external inputs. The COG improves upon the functionality of the CWG with the addition of blanking and phase control.

  • Provides non-overlapping complementary waveform
  • Various input sources inclusive of:
    • Comparators, PWM, CLC, NCO
  • Blanking control for transient filtering (1) (available with COG)
  • Phase control for output delay (2) (available with COG)
  • Independent rise and fall (3 / 4)
  • Dead band control
  • Auto shutdown/restart
  • Polarity control
  • Reduced sizing of inductors and capacitors
  • Reduced BOM cost and improved EMI
  • Precision LED color mixing, smooth dimming and brightness control
  • Higher efficiency power conversion designs

Example Applications
  • Switch mode power supplies
  • LED/fluorescent lighting
  • Battery charger
  • Motor drive
  • Power factor correction
  • Class D audio amplifiers

Complementary Output Generator (COG)
Complementary Output Generator

High Resolution PWM (HRPWM)
Full Range PWM Resolution at High Frequency

A patented solution using the CLC and NCO to provide High (Effective) Resolution Pulse Width Modulation at much higher switching frequencies than achievable with standard PWMs. This feature allows the use of smaller inductors and capacitors, and has the ability to induce jitter, lower cost, and improve EMC performance.

  • Enables high switching frequency designs
  • Variable PWM resolution
  • Up to 17 bits effective resolutions at 500kHz

  • Reduced sizing of inductors and capacitors
  • Reduced BOM cost and improved EMI
  • Precision LED color mixing, smooth diming and brightness control
  • Higher efficiency power conversion designs
Example Applications
  • Power supplies
  • DC/DC converters
  • LED lighting/color mixing
  • Motor control
  • Florescent ballast
  • Resonant power supply

HRPWM Diagram

Numerically Controlled Oscillator (NCO)
Oscillator Capabilities with True Linear Frequency Control

A programmable precision linear frequency generator, ranging from <1Hz to 500KHz+. The NCO offers a step up in performance, and a simplification in design for applications requiring precise linear frequency control such as: Lighting Control, Tone Generators, Radio Tuning Circuitry, Fluorescent Ballast, Class D Audio Amps, etc.

  • Up to 20-bit frequency resolution
  • Multiple internal and external clock sources available
  • 16b numeric frequency control
    • 625kHz max output with 20MHz oscillator
    • 0.03Hz min step size with 31kHz internal oscillator
  • 2 Output modes
    • Fixed 50% Duty Cycle
    • Pulse Frequency Modulation (PFM)
  • True linear frequency control
  • Increased frequency resolution

Example Applications
  • Fluorescent ballast and LED lighting control
  • Motor drivers
  • Modems
  • Class D audio amplifiers
  • Ultrasonic ranging

NCO Diagram

Example: Fluorescent Lighting Control

  • Use the NCO to create linear frequencies for start-up and dimming control
  • Lower power and extend life of fluorescent bulb

NCO Diagram

Programmable Switch Mode Controller (PSMC)
Advanced PWM Capabilities and Integrated Analog Enabling High Performance with Minimal External Circuitry CPU Bandwidth

The PSMC is a high performance 16-bit PWM with 6 configurable outputs that can operate in multiple modes. With a dedicated 64MHz clock and the flexibility to interface to external inputs as well as integrated peripherals / clock sources, the PSMC offers the highest level of advanced PWM control and accuracy in an 8-bit MCU.

  • Various clock sources: external, system clock, independent 64 MHz
  • Various input sources: comparators, external pins
  • Blanking control for transient filtering
  • Single 16-bit PWM
    • With up to 6 steerable outputs
  • Complementary 16-bit PWM
    • With up to 3 steerable output pairs
  • Independent rising/falling edge control
  • Dead band with independent rise and fall control
  • Polarity control/auto shutdown and restart
  • Flexible PWM output modes:
    • Push/pull, pulse skipping, 3-phase, fixed duty cycle, brushed DC with forward/reverse
  • Output gating: externally controlled activate/deactivate
  • High Efficiency closed-loop control with fast switching speed
  • Cost effective integration enabling significant BOM reductions
  • Customizable high speed PWM with increased resolution and control
  • Simplifies the implementation of applications such as: motor control, lighting and power supplies

Example Applications
  • Power Supplies / Conversion
    • DC/DC (power bricks), Power factor correction
  • Lighting
    • LED, Backlighting, Automotive, HID, Lamp Ballast
  • Motor Control
    • BLDC, AC induction, 3 Phase
  • Battery Charging / Monitoring
  • General purpose applications requiring high resolution PWM

Example: Buck Converter Driving LED ArrayPSMC Diagram

Key Attributes

  • Self-Sustaining
    • Once initialized in a system, Core Independent Peripherals can provide steady-state closed loop embedded control with zero intervention from the MCU's core. The CPU can then be idled or put into SLEEP mode to save system power.

  • CPU Free
    • Core Independent Peripherals are smartly interconnected to allow near zero latency sharing of data, logic inputs, or analog signals without additional code or interruption of the CPU. This frees the CPU to perform other system tasks and reduces Flash memory consumption.

  • Significant Savings
    • By taking the load off the CPU, Core Independent Peripherals allow smaller, lower power PIC MCUs to perform extremely complex tasks, such as high power lighting control and communication. In addition, significant BOM cost savings can be realized by replacing off-board discrete components with these integrated peripherals.


8-bit PIC® MCU Architecture Features

  • Instructions and data on separate busses
  • Simultaneous data & instruction bus access
  • Wide program memory buses (12, 14 & 16-bit)
  • Increased efficiency single cycle instructions
  • Available data EEPROM
  • Unified toolset for all cores
Compare 8-bit PIC® MCU Architectures

Baseline Architecture
Mid-Range Architecture
Enhanced Architecture
 Pin Count
 6-40 8-64 8-64
 Interrupts No Single interrupt capabilitySingle interrupt capability with hardware context save
 Performance 5 MIPS 5 MIPS 8 MIPS
 Instructions 33, 12-bit 35, 14-bit 49, 14-bit
 Program Memory Up to 3 KB Up to 14 KB Up to 28 KB
 Data Memory Up to 138 Bytes Up to 368 Bytes Up to 1,5 KB
 Hardware Stack 2 level 8 level 16 level
  • Comparator
  • 8-bit ADC
  • Data Memory
  • Internal Oscillator
 In addition to Baseline:
  • SPI/I²C™
  • UART
  • PWMs
  • LCD
  • 10-bit ADC
  • Op Amp
 In addition to Mid-Range:
  • Multiple Communication Peripherals
  • Linear Programming Space
  • PWMs with Independent Time Base
 Highlights  Lowest cost in the smallest form factor Optimal cost to performance ratio Cost effective with more performance and memory

Baseline PIC® Microcontrollers

Baseline PIC microcontrollers have long been the 8-bit microcontroller preferred by engineers around the world for a wide array of applications. Baseline PIC microcontrollers utilize a 12-bit program word and provide the right amount of features and options to minimize expenses and get the job done right. With so many options available, picking the right Baseline Flash PIC microcontroller for an application is quick and easy.

  • Simple 33 (12-bit wide) instruction set for ease of use and quick development
  • <2K word (3 KB) addressable program memory
  • 144 bytes RAM (max)
  • 2 level hardware stack
  • 1 (8-bit) file select register
  • Multiple product options and easy migration
  • Smallest form factors available

  Baseline PIC® Microcontrollers Block Diagram

Mid-Range PIC® Microcontrollers

Mid-Range PIC Microcontrollers are the next tier in performance and features from our Baseline PIC microcontrollers. Utilizing a 14-bit instruction word, these peripheral-rich devices are ideal for multi-dimensional applications that require a higher level of embedded control,yet with only 35 instructions to learn, achieving optimum system performance remains an easy task.

  • 35 (14-bit wide) easy instructions to learn
  • 8K word (14 KB) addressable program memory
  • 46 bytes RAM (max)
  • 8 level hardware stack
  • 1 (9-bit) file select register
  • Hardware interrupt handling
  • Highly integrated feature set, including EEPROM, LCD, mTouch™ sensing solutions and serial communications

  Mid-Range Core Block Diagrams

Enhanced Mid-Range PIC® Microcontrollers

Microchip continues to invest in its 8-bit PIC Microcontroller line to provide a broad product portfolio that meets the needs of existing and future costumers. The new Enhanced Mid-Range core builds upon the best elements of the Mid-Range core and provides additional performance, while maintaining compatibility with Mid-Range PIC MCUs for true product migration.

  • 49 (14-bit wide) easy instructions to learn
  • 32K word (56 KB) addressable program memory
  • 4KB RAM (max)
  • 16 level hardware stack
  • 2 (16-bit) file select registers
  • Hardware interrupt handling with content save
  • Advanced feature set, multiple serial communications and motor control capability

  Enhanced Mid-Range PIC® Microcontrollers


  • Microchip Technology