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PIC18F27K40-E/SO

MCHPPIC18F27K40-E/SO

Microchip Technology
PIC PIC® XLP™ 18K Microcontroller IC 8-Bit 64MHz 128KB (64K x 16) FLASH 28-SOIC
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Overview

The PIC18F27K40-E/SO is an 8-bit eXtreme Low-Power (XLP) microcontroller featuring 128KB of Flash memory and a 64MHz internal oscillator. This device integrates Core Independent Peripherals (CIPs) such as a Complementary Waveform Generator and Zero-Cross Detect to handle hardware tasks without CPU intervention, reducing power consumption and software overhead.

Why Choose This Part

This MCU offers a high memory-to-pin ratio with 128KB of Flash in a 28-pin package, ideal for code-heavy applications with limited board space. The inclusion of hardware-based CRC/Memory Scan and a Windowed Watchdog Timer (WWDT) provides enhanced system reliability for safety-critical monitoring tasks.

Applications

Industrial Sensor Nodes
Utilizes the 10-bit ADC and Zero-Cross Detect for robust monitoring in electrically noisy industrial environments.
Battery-Powered Handhelds
Leverages XLP technology with sleep currents as low as 50nA to extend service life in portable applications.
Home Automation Controllers
Uses the 1K byte EEPROM for persistent storage of configuration data and Peripheral Pin Select (PPS) for flexible PCB routing.

Key Specifications

Speed 64MHz
RAM Size 3.6K x 8
Core Size 8-Bit
EEPROM Size 1K x 8
Peripherals Brown-out Detect/Reset, LVD, POR, PWM, WDT
Connectivity I2C, LINbus, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 25
Core Processor PIC
Package / Case 28-SOIC (0.295", 7.50mm Width)
Data Converters A/D 24x10b; D/A 1x5b
Oscillator Type Internal
Program Memory Size 128KB (64K x 16)
Program Memory Type FLASH
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 28-SOIC
Voltage - Supply (Vcc/Vdd) 2.3V ~ 5.5V

Getting Started

Developers can begin evaluation using the MPLAB X IDE and the Curiosity Nano or PIC18F27K40 Curiosity development boards. Programming and debugging are supported by the MPLAB PICkit 4 or ICD 4 tools, while the MPLAB Code Configurator (MCC) can be used to graphically initialize the Core Independent Peripherals.

PIC18F27 Family

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

Part Number Flash RAM Package ADC/DAC Peripherals Temp Range Stock
PIC18F27K40-E/SO (this part) 128KB 3.6K SOIC-28 A/D 24x10b; D/A 1x5b Brown-out Detect/R.. -40degC ~ 125degC .. —
PIC18F27K40-I/SP 128KB 3.6K DIP-28 A/D 24x10b; D/A 1x5b Brown-out Detect/R.. -40degC ~ 85degC (.. 905
PIC18F27K40T-I/SS 128KB 3.6K SSOP-28 A/D 24x10b; D/A 1x5b Brown-out Detect/R.. -40degC ~ 85degC (.. 2,630
PIC18F27K42-I/SP 128KB 8K DIP-28 A/D 24x12b; D/A 1x5b Brown-out Detect/R.. -40degC ~ 85degC (.. 661
PIC18F27K42-E/SO 128KB 8K SOIC-28 A/D 24x12b; D/A 1x5b Brown-out Detect/R.. -40degC ~ 125degC .. 3,146
PIC18F27Q10-I/SO 128KB 3.53K SOIC-28 A/D 24x10b; D/A 1x5b Brown-out Detect/R.. -40degC ~ 85degC (.. 652
PIC18F27Q43-I/SO 128KB 8K SOIC-28 A/D 24x12b; D/A 1x8b Brown-out Detect/R.. -40degC ~ 85degC (.. 1,530
PIC18F27K42-E/SS 128KB 8K SSOP-28 A/D 24x12b; D/A 1x5b Brown-out Detect/R.. -40degC ~ 125degC .. 113
PIC18F27K42-I/SO 128KB 8K SOIC-28 A/D 24x12b; D/A 1x5b Brown-out Detect/R.. -40degC ~ 85degC (.. 1,778
PIC18F27Q43-I/SP 128KB 8K DIP-28 A/D 24x12b; D/A 1x8b Brown-out Detect/R.. -40degC ~ 85degC (.. 465
PIC18F27Q10-I/SP 128KB 3.53K DIP-28 A/D 24x10b; D/A 1x5b Brown-out Detect/R.. -40degC ~ 85degC (.. 456
PIC18F27K40-I/SO 128KB 3.6K SOIC-28 A/D 24x10b; D/A 1x5b Brown-out Detect/R.. -40degC ~ 85degC (.. 1,314
PIC18F27K42-I/SS 128KB 8K SSOP-28 A/D 24x12b; D/A 1x5b Brown-out Detect/R.. -40degC ~ 85degC (.. 853
PIC18F27K42-E/ML 128KB 8K VQFN-28 A/D 24x12b; D/A 1x5b Brown-out Detect/R.. -40degC ~ 125degC .. 102
PIC18F27Q43-E/SO 128KB 8K SOIC-28 A/D 24x12b; D/A 1x8b Brown-out Detect/R.. -40degC ~ 125degC .. 168
PIC18F27Q43-E/SS 128KB 8K SSOP-28 A/D 24x12b; D/A 1x8b Brown-out Detect/R.. -40degC ~ 125degC .. —

Also Consider

PIC18F27Q43-E/SO MCHPMicrochip Technology - An updated alternative featuring a 12-bit ADC with computation and more advanced Core Independent Peripherals.
ATmega1280 MCHPMicrochip Technology - Offers similar 128KB Flash capacity within the AVR architecture for users preferring that ecosystem.
PIC18F27K42-E/SO MCHPMicrochip Technology - Provides Vectored Interrupts and Direct Memory Access (DMA) for higher performance data handling.