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PIC18F14K50-I/SO

MCHPPIC18F14K50-I/SO

Microchip Technology
PIC PIC® XLP™ 18K Microcontroller IC 8-Bit 48MHz 16KB (8K x 16) FLASH 20-SOIC
NRND1,860 in stock
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Overview

The PIC18F14K50-I/SO is an 8-bit microcontroller featuring Microchip XLP (eXtreme Low Power) technology and an integrated USB 2.0 Full Speed Serial Interface Engine (SIE). Operating at up to 48MHz, it bridges the gap between low-power sensor applications and PC-connected peripherals by eliminating the need for external crystal oscillators in many USB configurations. Its 20-pin SOIC package provides a compact footprint for designs requiring 16KB of Flash and robust serial connectivity.

Why Choose This Part

This MCU stands out for its eXtreme Low Power technology, achieving sleep currents as low as 24nA, making it ideal for energy-sensitive applications. The internal clock recovery system allows for USB communication without an external crystal, reducing both BOM cost and PCB complexity. Additionally, it supports a wide operating voltage from 1.8V to 5.5V and includes 5V tolerant I/O pins for easier interfacing with legacy systems.

Applications

USB Peripheral Controllers
Utilizing the on-chip USB transceiver and SIE to create custom HID-class devices like keyboards or specialized industrial interfaces.
Battery-Powered Data Loggers
Leveraging XLP technology and 256 bytes of EEPROM to store sensor data with extremely low sleep current consumption.
USB-to-Serial Bridges
Acting as a gateway between legacy UART/SPI/I2C hardware and modern USB-enabled host systems.
Handheld Medical Devices
Integrating 10-bit ADC channels and low-power modes for portable diagnostic tools that require periodic data upload via USB.

Key Specifications

Speed 48MHz
RAM Size 768 x 8
Core Size 8-Bit
EEPROM Size 256 x 8
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Connectivity I2C, SPI, UART/USART, USB
Mounting Type Surface Mount
Number of I/O 14
Core Processor PIC
Package / Case 20-SOIC (0.295", 7.50mm Width)
Data Converters A/D 11x10b
Oscillator Type Internal
Program Memory Size 16KB (8K x 16)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 20-SOIC
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V

Getting Started

Development is best supported through the MPLAB X IDE and the XC8 compiler. For hardware debugging and programming, use the MPLAB PICkit 4 or ICD 4 via the Single-Supply ICSP interface. The Low Pin Count USB Development Kit (DM164127) is the recommended hardware platform for prototyping USB firmware specifically for this device family.

PIC18F14 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Flash RAM I/O Pins Package Speed ADC/DAC Stock
PIC18F14K50-I/SO (this part) 16KB 768 x 8 14 SOIC-20 48M A/D 11x10b 1,860
PIC18F14Q40T-I/2LX 16KB 1K 18 VFQFN-20 64M A/D 17x12b SAR; D/.. 6,000
PIC18F14Q41T-I/2LX 16KB 1K 18 VFQFN-20 64M A/D 17x12b; D/A 2x8b 6,000
PIC18F14K22-I/SS 16KB 512 x 8 17 SSOP-20 64M A/D 12x10b 8,258
PIC18F14K50-I/P 16KB 768 x 8 14 DIP-20 48M A/D 11x10b 622
PIC18F14K22-E/P 16KB 512 x 8 17 DIP-20 48M A/D 12x10b 231
PIC18F14K22-I/SO 16KB 512 x 8 17 SOIC-20 64M A/D 12x10b 4,410
PIC18F14K50-I/SS 16KB 768 x 8 14 SSOP-20 48M A/D 11x10b 3,321

Also Consider

PIC18F25K50-I/SO MCHPMicrochip Technology - Provides a higher pin count (28 pins) and more Flash (32KB) for applications requiring additional GPIO or larger code space.
ATmega32U2 MCHPMicrochip Technology - An AVR-based 8-bit alternative with integrated USB, popular for its extensive open-source library support.