Microchip Technology Inc

PIC12/16F157X Product Family

Multiple High-Resolution PWMs in Small Packages

The PIC12/16F157x product family brings high-resolution drive capability into lower pin counts with multiple 16-bit Pulse-Width Modulations (PWMs). It is ideal for a broad range of applications such as Light-Emitting Diode (LED) lighting and color mixing, motor control and Switch-Mode Power Supplies (SMPS), among others. These products include peripheral integration for closed-loop control with communication capabilities into a small form factor, thus enabling increased precision for drive and control in space- or cost-constrained applications.

Advanced PWM Drive Capability

The integrated 16-bit PWMs bring advanced capabilities far beyond those of typical PWM modules. The 16-bit PWMs feature independent timers and multiple output modes (edge-aligned, center-aligned and others) for increased flexibility, and they can be optimized for precision, efficiency and electromagnetic interference (EMI) performance.

Easy Complementary Output Generation

Any of the 16-bit PWMs can be combined with the Complementary Waveform Generator (CWG), which enables automated complementary output control with control of dead-band and auto-shutdown modes. Once configured, the 16-bit PWMs and CWG run completely independent of the core, which allows the core to perform other tasks.

Integrated Analog

The on-board 10-bit Analog-to-Digital converter (ADC), 5-bit Digital-to-Analog Converter (DAC), internal voltage references and comparators can be connected internally to create closed-loop feedback without requiring pins, Printed Circuit Board (PCB) space or options to be used for other functions within applications. The versatile 10-bit ADC can be used to implement buttons or sliders using Microchip’s mTouch®capacitive sensing technology.

Flexible PCB Routing

The Peripheral Pin Select (PPS) functionality allows I/O pin remapping of the digital peripherals. This ability to access multiple peripherals on the same I/O port increases flexibility, eases PCB layout and improves utilization.

Communicate With Others

These products include an Enhanced Universal Synchronous Asynchronous Receiver Transceiver (EUSART) which enables serial communication. It includes Local Interconnect Network (LIN) for automotive and industrial applications, as well as DMX for lighting applications, allowing the design of intelligent applications where remote devices communicate with a host or master.

Key Attributes

  • 32 MHz internal oscillator
  • Up to 14 KB self-write program memory
  • Up to 1 KB RAM
  • 128 B of non-volatile data storage
  • Up to four 16-bit PWMs with independent timers
  • Up to two comparators
  • 10-bit ADC, up to 12 channels
  • 5-bit DAC
  • Complementary Waveform Generator (CWG)
  • EUSART
  • mTouch® capacitive sensing technology
  • Peripheral Pin Select (PIC16 products only)
  • Available in 8, 14 and 20 pins

Related Links:

www.microchip.com/rgbbadge

Building Blocks for Function Enablement

16-bit Pulse-Width Modulations (PWM)
16-bit PWM with multiple output modes (edge-aligned, center-aligned and others) with independent timers. Additional 16-bit timer capability when not using the PWM output.
Complementary Waveform Generator (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 and auto restart, and can interface directly with other peripherals/external inputs.
Closed Loop Control
With the additional 10-bit ADC, 5-bit DAC and comparator, control loops for closed-loop feedback control can be created or can be used for other functions within the application. By implementing the available mTouch® capacitive sensing technology, the 10-bit ADC can be used to create buttons or sliders.
Peripheral Pin Select (PPS)
The Peripheral Pin Select (PPS) provides the ultimate in flexibility when routing digital signals to device pins. With the PPS, any digital peripheral can be connected to any I/O pin on the fly for a customized layout. This allows users to maintain layout compatibility with older PIC® MCUs, even as new features are implemented.
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