Microchip Technology PIC16F1503-E/MG

Overview

PIC16F1503-E/MG from Microchip Technology is an 8-bit RISC microcontroller with 2 Kwords Flash program memory, 128 bytes SRAM, and 12 I/O pins. It features a 20 MHz max clock input, 10-bit ADC with eight external channels, integrated 5-bit DAC, two comparators, four 10-bit PWM modules, and advanced peripherals including CLC, NCO, and CWG - designed for low-power embedded control in sensor interfaces and motor drive subsystems.

For engineers reviewing the PIC16F1503-E/MG datasheet, PIC16F1503-E/MG pinout, PIC16F1503-E/MG application, or PIC16F1503-E/MG equivalent, key selection criteria include its 2.3–5.5 V operating range, 20 nA sleep current (PIC16LF1503 variant), ICSP™ programming via two pins, and support for SPI/I²C communication through the MSSP module.

Technical Context

The PIC16F1503-E/MG implements an enhanced mid-range 8-bit CPU with only 49 instructions, 16-level hardware stack with overflow/underflow reset, and automatic interrupt context saving. Its memory architecture supports linear 2 Kword program addressing and 128-byte data memory, plus 128 bytes of high-endurance Flash for nonvolatile data storage (100,000 erase/write cycles).

Peripherals are tightly integrated: the 10-bit ADC operates during Sleep mode; the Numerically Controlled Oscillator (NCO) provides true linear frequency control with 20-bit accumulator; and the Complementary Waveform Generator (CWG) delivers dead-band controlled outputs synchronized to PWM, CLC, or NCO sources - enabling precise timing-critical power stage control.

Key Specifications

Pinout & Package

Package: 14-pin SOIC (E/MG suffix per Microchip packaging nomenclature). Pin functions validated per DS40001607D-page 9 Table 1-2 and page 3 pin diagrams.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with PIC16F1507-I/ML and PIC16F1703-I/SO, the PIC16F1503-E/MG uniquely balances compact 14-pin packaging with advanced digital peripherals (CLC, NCO, CWG) ideal for closed-loop timing-critical control - making it optimal where logic flexibility and waveform precision outweigh raw I/O count or analog gain needs.

Availability

PIC16F1503-E/MG is available at Aetrix Electronics and suitable for motor control subsystems, sensor signal conditioning circuits, smart lighting drivers, and power supply monitoring systems requiring stable component supply across production lifecycles.

Supply support for PIC16F1503-E/MG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology Inc. is a leading provider of microcontrollers, analog, FPGA, and connectivity solutions, serving industrial, automotive, consumer, and communications markets since 1989.

The PIC16F1503-E/MG belongs to Microchip's enhanced mid-range 8-bit PIC® microcontroller family, designed specifically for cost-sensitive, low-power embedded control applications demanding integrated analog peripherals and programmable logic resources.

FAQ

What is the maximum operating frequency of the PIC16F1503-E/MG?

The PIC16F1503-E/MG supports a maximum clock input frequency of 20 MHz, delivering a 200 ns instruction cycle time. This is achievable using the internal 16 MHz oscillator with PLL or external crystal/clock sources up to 20 MHz. The device's DC–20 MHz specification means it operates reliably from static (DC) to full-speed conditions without minimum frequency constraints - critical for ultra-low-power wake-from-Sleep applications.

Does the PIC16F1503-E/MG support in-circuit debugging?

Yes, the PIC16F1503-E/MG supports In-Circuit Debug (ICD) via two dedicated pins (RA0/ICSPDAT and RA1/ICSPCLK), identical to its ICSP™ programming interface. This allows full hardware-assisted debugging - including breakpoints, single-stepping, and register/memory inspection - without requiring additional debug headers or emulation hardware, streamlining firmware development directly on the target board.

What peripheral resources are shared on the same physical pins of the PIC16F1503-E/MG?

Multiple peripherals share pins on the PIC16F1503-E/MG via register-controlled remapping. For example, RA4 supports NCO1 output, SDO (SPI), CLKOUT, and T1G; RC1 supports PWM4, NCO1, SDA (I²C), and SDI (SPI); and RA3 serves as MCLR, VPP, T1G, SS, and CLC1IN0. Function selection is managed through the APFCON register, allowing dynamic reconfiguration during runtime without hardware changes.

How does the High-Endurance Flash (HEF) memory in the PIC16F1503-E/MG differ from standard program Flash?

The PIC16F1503-E/MG includes 128 bytes of dedicated High-Endurance Flash (HEF) memory mapped from address 0780h–07FFh. Unlike standard Flash, this region is rated for ≥100,000 erase/write cycles and is optimized for nonvolatile data storage - such as calibration coefficients, usage counters, or configuration flags - that require frequent updates during product operation without compromising main program memory longevity.

Can the PIC16F1503-E/MG generate complementary PWM waveforms with programmable dead-band?

Yes, the PIC16F1503-E/MG integrates a Complementary Waveform Generator (CWG) module capable of generating primary and complementary PWM outputs with user-selectable rising/falling edge dead-band delays. Dead-band values are set via dedicated registers (CWGxCON), and auto-shutdown can be triggered by external faults, CLC logic, or PWM events - enabling robust, jitter-free half-bridge or H-bridge gate drive without CPU intervention.