Next Generation Peripherals
For 8-bit PIC® Microcontrollers
Unique integrated peripherals for 8-bit PIC microcontrollers.
www.microchip.com/8bit
Integrated Peripheral Highlights
2 Next Generation Peripherals for 8-bit PIC Microcontrollers
Configurable Logic Cell (CLC) – Easily create custom combination and sequential logic.
Key Features
■ User configurable real time logic control
– CLC configuration GUI for quick turn development
■ Combinational Logic Functions
– AND/OR/XOR/NOT/NAND/NOR/XNOR
■ 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
Benefits
■ Increases on chip interconnection of peripherals and I/O
■ Integrates hardware functions and saves board space
■ Software control of Combinational/Sequential Logic
■ Saves program code space and frees up CPU cycles
Example: Phase Shifted Data Modulator
Combinational and Sequential logic can easily be designed using on-chip hardware.
Overview
Microchip is the leader in 8-bit microcontrollers by continually investing and expanding upon the PIC®microcontroller
line-up. Emphasis is persistently focused on reducing costs while developing products with a strong mix of peripherals
such as LCD drive, PWM, ADC, comparators, timers and communication. Beyond standard peripherals, Microchip is
constantly bringing additional value to PIC microcontrollers by developing unique and exclusive peripherals. These
unique peripherals allow embedded engineers to simplify their designs and create ever more creative applications
and products. This innovation is demonstrated by some of the following PIC microcontroller integrated peripherals.
Example Applications
■ Data Modulation
■ Power Sequencing
■ Manchester/IrDA Encoder
■ Switch Mode Power Supply
■ Event Sequencing
■ Conditional Signaling
■ General Purpose Logic
■ Customizable Circuitry
■ Smart System Control
■ Boost Regulator with
Feedback
Available on the following PIC microcontrollers: PIC10F32X, PIC1XF150X.
8-bit Peripheral Highlights
www.microchip.com/8bit 3
8-bit Peripheral Highlights
Complementary Waveform Generator (CWG) Complementary waveforms with enhanced capabilities.
Complementary Output Generator (COG)
Example: Half Bridge Circuit Using CWG or COG
Use CWG’s or COG’s advanced features to provide dead-band
control, auto shut down.
Available on the following PIC microcontrollers: PIC10F32X, PIC12F752, PIC1XF150X.
Example: LED Buck Converter
■ CWG or COG frequency is determined
by frequency of PWM
■ CWG or COG provide dead-band
control for the synchronous switches
■ Use CWG’s or COG’s advanced
features to provide auto shut down,
polarity control
Key Features
■ Provides non-overlapping complementary waveform
■ Various input sources inclusive of:
– Comparators, PWM, CLC, NCO
■ Blanking control for transient filtering
1
(available with COG only in PIC12F752)
■ Phase control for output delay
2
(available with COG only in PIC12F752)
■ Independent rise and fall
3
/
4
■ Dead band control
■ Auto shutdown/restart
■ Polarity control
Benefits
■ Works with multiple peripherals
■ Fewer components and less space
■ Lower power
■ Improved switching efficiencies
Example Applications
■ Switch Mode Power Supplies
■ LED/Fluorescent Lighting
■ Battery Charger
■ Motor Drive
■ Power Factor Correction
■ Class D Audio Amplifiers
Complementary Waveform Generator (CWG)/Complementary Output Generator (COG)
⎧
⎨
⎩
4 Next Generation Peripherals for 8-bit PIC Microcontrollers
Numerically Controlled Oscillator (NCO)
–
Oscillator capabilities with true linear frequency control.
Available on the following PIC microcontrollers: PIC10F32X, PIC1XF150X.
Example: Fluorescent Lighting Control
■ Use the NCO to create linear frequencies for start-up and dimming control
■ Lower power and extend life of fl uorescent bulb
Key Features
■ Up to 20-bit frequency resolution
■ Independent 16 MHz clock input
■ 16b numeric frequency control
– 500 kHz max output
– 15 Hz per step
■ 2 output modes
– Fixed 50% Duty Cycle (FDC)
1
– Pulse Frequency Modulation (PFM)
2
Benefits
■ True linear frequency control
■ Increased frequency resolution
Example Applications
■ Fluorescent and LED Lighting Control
■ Neon Lighting Control
■ Lighting Ballast
■ Power Supplies
■ Motor Drivers
■ Modems
■ Class D Audio Amplifiers
■ Ultrasonic Ranging
8-bit Peripheral Highlights
www.microchip.com/8bit 5
Key Features
■ Various clock sources: external, system clock,
independent 64 MHz
■ Various input sources: comparators, external
pins
■ Blanking control for transient filtering
1
■ 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
2
■
Dead band with independent rise and fall control
3
/
4
■ 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
Available on the following PIC microcontrollers: PIC16F178X.
Example: LED Buck Converter
■ Increased frequency control with dead-band control for the synchronous switches
■ Provides auto shut down, polarity control and increased duty cycle performance
Programmable Switch Mode Controller (PSMC)
–
Advanced PWM capabilities for power supplies,
motor and lighting control.
Example Applications
■ Power Supplies
■ DC/DC Converters (Power Bricks)
■ Power Factor Correction
■ LCD Backlighting
■ LED Lighting
■ Automotive Head and Tail Lamps
■ High Intensity Discharge (HID)
Lighting
■ Lamp Ballasts
■ Signal Conditioning
■ Motor Control
– 3-phase Motors, BLDC,
AC Induction
■ Sensors – Medical,
Temperature, Pressure
■ Battery Monitoring,
■ Advanced Battery
Charging
■ General Purpose
Applications Requiring
High Resolution PWM
Benefits
■ Customizable high speed PWM with increased resolution and
control
■ Simplifies the implementation of applications such as:
motorcontrol, lighting and power supplies
8-bit Peripheral Highlights
6 Next Generation Peripherals for 8-bit PIC Microcontrollers
Temperature Indicator
–
Integrated temperature measurements for any application.
Key Features
■ Measures between -40°C and 85°C
■ Internally connected to ADC
– ADC result changes with temperature
■ Reference Application Note: AN1333
Benefits
■ Low cost temp measurements for any application
■ No external hardware required
■ Improve RTC accuracy over temp
– Allows the use of lower cost crystals
■ Improved voltage reference over temp
Example Applications
■ Mobile Phones
■ Power Tools
■ Home Appliances
■ Any application requiring environmental temperature
measurements
■ Auto-shutdown to prevent system overheat
■ Any application requiring oscillator accuracy over temp
Data Signal Modulator (DSM)
–
Easily create custom communication protocols.
Key Features
■ Modulate any input signal over a carrier frequency
■ Create custom digital bit patterns
■ Sources can be modulated using:
– An external pin
– Clock reference
– PWM
– UART/SPI/I2C™
– A register bit
– Internal comparators
Benefits
■ Easily create IrDA streams or ASK, FSK or PSK
transmissions
Available on the following PIC microcontrollers: PIC10F32X,
PIC16F72X, PIC1XF15XX, PIC16(L)F19XX, PIC16F182X,
PIC16F178X, PIC18FXXK22.
Example: Crystal Oscillator with Temperature Compensation
Enable the use of less expensive crystals while maintaining
accuracy over temp.
Available on the following PIC microcontrollers: PIC16F182X/184X.
Example Applications
■ Amplitude Shift Keying (ASK)
■ Frequency Shift Keying (FSK)
■ Phase Shift Keying (PSK)
■ Modems
■ IrDA stream
■ Custom Communication Interface
8-bit Peripheral Highlights
www.microchip.com/8bit 7
Timer 1 Gate (T1G)
–
Measures the duration of any input signal.
Key Features
■ Start/stop clock input based on control signal of 16 bit
Timer 1 (TMR1)
■ Gating sources:
– Comparator outputs
– Timer 0 (TMR0)
– External input (T1G pin)
■ Clocking sources
– Internal oscillator
– Internal oscillator divide by 4
– Timer 1 clock
■ Pulse acquisition modes with acquisition complete
interrupt flag
– Rising to rising edge
1
– Falling to falling edge
2
– Falling to rising edg
e
3
– Rising to falling edg
e
4
– Interrupt on completion
Benefits
■ Measure pulse width of any internal or external signal
■ Requires no external components
Available on the following PIC microcontrollers: PIC12F15XX, PIC16F61X Family, PIC16F690 Family, PIC16F72X,
PIC16F18XX, PIC16F88X, PIC16F19XX, PIC18FXXK22.
Example Applications
■ Delta Sigma ADC
■ PWM Decode
■ SMPS Current Sharing
■ Pulse Frequency Measurements
■ Time Frequency Measurements
Set Reset Latch (SR Latch)
–
Does anything a 555 timer can do and more.
Key Features
■ Internally tied to comparator
■ Multiple set/reset input options
– Comparator output
– Software control
– External pin
– Programmable clock
■ Latching output internal or external
Benefits
■ Do anything you can do with a 555 timer
■ Implement low cost wave forms and oscillators
■ Few external components
Note: SR Latch capability is integrated into CLC Module
Available on the following PIC microcontrollers: PIC16F61X, PIC16F690 Family, PIC16F18XX, PIC16F88X, PIC16F19XX,
PIC18FXXK22, PIC18F1XK50.
Example Applications
■ Amplitude Shift Keying (ASK)
■ Waveform/Pulse Generators
■ Switching Power Supplies
Controller
■ Digital Controlled Voltage
Controlled Oscillators
■ Oscillators
■ AC Lamp Dimmer
■ PWM Motor Control
■ Tone Generators
■ Phase Comparators
8-bit Peripheral Highlights
The Microchip name and logo, the Microchip logo, MPLAB and PIC are registered trademarks and PICDEM, PICkit and PICtail are
trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. All other trademarks mentioned herein are
property of their respective companies. © 2011, Microchip Technology Incorporated, All Rights Reserved. Printed in the U.S.A. 9/11
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