PIC18F13K22T-I/SO - 8KB Flash 8-bit MCU | Microchip
MPN: PIC18F13K22T-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.66 | $16.60 |
| 100 | $1.48 | $148.00 |
| 500 | $1.32 | $660.00 |
| 1,000 | $1.18 | $1,180.00 |
| 3,300 | $1.05 | $3,465.00 |
PIC18F13K22T-I/SO Overview
A microcontroller (MCU) is an integrated circuit that combines a CPU core, program memory, data memory, and programmable peripherals on a single silicon die. The PIC18 family uses an enhanced 8-bit RISC Harvard architecture optimized for C compilers, delivering deterministic instruction execution and code density that makes it ideal for embedded control. The PIC18F13K22T-I/SO sits within the broader hierarchy of microcontroller (MCU) > 8-bit MCU > PIC18 family > nanoWatt XLP family > PIC18F1XK22 sub-family.
Key features include 16 I/O pins, 10-bit ADC with multiple channels, enhanced PWM, UART, SPI, I2C peripherals, and nanoWatt XLP technology for ultra-low power operation. The device supports multiple low-power sleep modes that draw microampere-level current, making it suitable for battery-powered applications. The 20-pin SOIC package provides compact through-hole-compatible footprint for industrial and consumer designs.
The PIC18F13K22T-I/SO uses a 16-bit instruction word with 8-bit data path architecture, achieving most instructions in a single cycle. The integrated nanoWatt XLP technology includes multiple sleep modes, oscillator switching, and doze mode that allow engineers to tune power consumption against performance for energy harvesting, remote sensing, and portable applications where battery life is critical.
Typical applications include industrial sensor interfaces, battery-powered IoT sensor nodes, low-power remote controls, small home appliances, and automotive body modules (when properly qualified). Its small footprint and XLP features make it attractive for space-constrained designs requiring extended battery life. The PIC18 ecosystem also offers MPLAB X IDE and XC8 compiler support, simplifying firmware development.
When designing with this device, ensure proper decoupling (100 nF ceramic close to VDD), respect the supply voltage range, and configure unused I/O pins as outputs low to minimize current leakage. The device is identical to the PIC18F13K22-I/SO in specifications - the T suffix indicates tape and reel packaging.
This page synthesizes distributor pricing, drop-in alternatives from both Microchip and competitor manufacturers, and practical design notes not found in the standalone datasheet, providing unique information gain for procurement and engineering decision-making.
Drop-in alternatives for PIC18F13K22T-I/SO — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC18F13K22T-I/SO (same form factor and footprint) — differing in Core Architecture, Timers, Package, ADC, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F13K22-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F14K22-I/SO
✅ Drop-In✓ In Stock
$0.96 / Unit
View Datasheet →PIC18F13K22-E/SO
✅ Drop-In✓ In Stock
$1.52 / Unit
View Datasheet →PIC18F13K22T-I/SO
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F1508-I/SO
✅ Drop-In✓ In Stock
$0.92 / Unit
View Datasheet →PIC18F13K22T-I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 8-bit RISC |
| Program Memory (Flash) | 8 KB (4K x 16) |
| Data SRAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 64 MHz |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| I/O Pins | 16 |
| ADC | 10-bit, multiple channels |
| Package | 20-pin SOIC (SO) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) |
| Low-Power Technology | nanoWatt XLP |
| Communication Peripherals | UART, SPI, I2C |
| PWM | Enhanced PWM module |
| RoHS Status | Compliant |
PIC18F13K22T-I/SO Pin Configuration
| Pin 1 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| Pin 2 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| Pin 3 | RA2/AN2 — Digital I/O / Analog input channel 2 |
| Pin 4 | RA3/AN3 — Digital I/O / Analog input channel 3 / VREF+ |
| Pin 5 | RA4/AN4 — Digital I/O / Analog input channel 4 |
| Pin 6 | RA5/AN5 — Digital I/O / Analog input channel 5 |
| Pin 7 | RA6/OSC2 — Digital I/O / Oscillator output |
| Pin 8 | RA7/OSC1 — Digital I/O / Oscillator input |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RB0/AN10 — Digital I/O / Analog input channel 10 / INT0 |
| Pin 11 | RB1/AN8 — Digital I/O / Analog input channel 8 |
| Pin 12 | RB2/AN9 — Digital I/O / Analog input channel 9 |
| Pin 13 | RB3/AN11 — Digital I/O / Analog input channel 11 / CCP2 |
| Pin 14 | RB4/CCP4 — Digital I/O / Enhanced CCP4 |
| Pin 15 | RB5/CCP5 — Digital I/O / Enhanced CCP5 |
| Pin 16 | RB6/PGC — Digital I/O / ICSP clock / ICD clock |
| Pin 17 | RB7/PGD — Digital I/O / ICSP data / ICD data |
| Pin 18 | VDD — Positive supply voltage (4.2 V to 5.5 V) |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage (4.2 V to 5.5 V) |
Typical Applications
PIC18F13K22T-I/SO is suitable for 6 applications: Industrial Sensor Interface, Battery-Powered IoT Sensor Node, Remote Control and HMI, Small Home Appliance Controller, Automotive Body Module (Non-Safety), USB HID Peripheral Device.
Industrial Sensor Interface
The PIC18F13K22T-I/SO fits industrial sensor interface modules because its 16 I/O pins and 10-bit ADC can directly connect to multiple analog sensors (temperature, pressure, humidity) with minimal external components. The 64 MHz CPU (16 MIPS) handles linearization, filtering, and Modbus RTU over UART at typical 9600-115200 baud rates. Its 4.2 V to 5.5 V supply range accepts 5 V industrial rails without level shifting, reducing BOM cost. The 20-pin SOIC footprint is compact for DIN-rail sensor modules where PCB area is constrained. Compared to discrete analog front ends, this MCU integrates conditioning, conversion, and protocol handling in one IC.
Recommended
Battery-Powered IoT Sensor Node
The PIC18F13K22T-I/SO is well suited for battery-powered IoT sensor nodes thanks to its nanoWatt XLP technology, which offers sleep currents in the microampere range and multiple low-power modes. The 64 MHz performance enables burst-mode processing where the MCU wakes, samples sensors, transmits via SPI/I2C, and returns to deep sleep. With 8 KB Flash and 256 bytes SRAM, it handles sensor libraries for common I2C devices (BME280, SHT31) plus LoRaWAN or BLE stack entry points. Operating from 4.2 V to 5.5 V allows direct connection to 2x AA alkaline or Li-ion cells with simple regulation.
Recommended
Remote Control and HMI
The PIC18F13K22T-I/SO serves remote control and small HMI applications where its 16 GPIO pins can scan 4x4 matrix keypads, drive LED indicators via PWM, and communicate via UART or IR modulation. The enhanced PWM module controls LED brightness or buzzer tones with 10-bit resolution. The 8 KB Flash accommodates state-machine-based IR protocols (RC5, NEC) or simple menu navigation logic. Operating from a single 5 V supply simplifies USB-C or battery-powered handheld designs. The 20-SOIC footprint fits handheld enclosures where compact PCB layout is essential.
Recommended
Small Home Appliance Controller
The PIC18F13K22T-I/SO is ideal for small home appliance controllers (coffee makers, fans, blenders) where its 16 I/O pins drive relay or TRIAC control circuits, read user buttons, and time events via timers. The 64 MHz CPU executes control algorithms at 16 MIPS, sufficient for PID temperature regulation in coffee machines or motor speed control in blenders. Its 4.2 V to 5.5 V range accepts rectified mains-derived DC rails with simple capacitive dropper supplies. Compared to mechanical timers, this MCU adds programmable features (delays, presets, diagnostics) at low cost.
Recommended
Automotive Body Module (Non-Safety)
The PIC18F13K22T-I/SO fits automotive body modules such as interior lighting controllers, mirror adjusters, or seat controllers where moderate logic and timing are required. The 16 GPIO pins drive LED strings, relay coils, and H-bridge motor drivers for non-safety loads. Its nanoWatt XLP features enable quiescent current below 100 µA in parking/standby mode, preserving battery life in always-on body modules. Operating from 4.2 V to 5.5 V accommodates 12 V automotive rails after LDO regulation. For safety-critical applications, use AEC-Q100-qualified variants or higher-grade PIC18 families.
Recommended
USB HID Peripheral Device
The PIC18F13K22T-I/SO can implement simple USB HID peripherals (keyboards, mice, custom HID devices) using the PIC18 USB stack or external USB controllers via SPI. The 16 GPIO pins scan keyboard matrices and drive status LEDs, while UART/I2C peripherals communicate with companion wireless modules. The 64 MHz CPU handles HID report generation at USB polling rates up to 1 kHz. For full-speed USB without external PHY, consider the PIC18F14K50 in the same SO-20 package family. Operating from USB 5 V rail simplifies power design.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F13K22T-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F13K22-I/SO | PIC18F14K22-I/SO | PIC18F13K22-E/SO | PIC16F1508-I/SO |
|---|---|---|---|---|---|
| Package | 20-SOIC | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 8 KB | 8 KB | 16 KB | 8 KB | 7 KB |
| SRAM | 256 bytes | 256 bytes | 512 bytes | 256 bytes | 256 bytes |
| CPU Speed | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 20 MHz |
| Supply Voltage | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 1.8 V to 5.5 V |
| I/O Pins | 16 | 16 | 17 | 16 | 17 |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C |
Key Differentiators
- Direct drop-in with tube packaging (vs PIC18F13K22-I/SO)
- Doubled memory scaling in same package (vs PIC18F14K22-I/SO)
- Extended temperature grade for harsh environments (vs PIC18F13K22-E/SO)
Design Notes
Place a 100 nF ceramic decoupling capacitor as close as possible to each VDD pin (pins 18 and 20 on 20-SOIC), with a 10 µF bulk capacitor on the supply rail. For battery-powered designs using nanoWatt XLP modes, ensure no floating inputs by configuring unused pins as outputs low; floating CMOS inputs can leak several µA each and defeat low-power targets. Refer to Microchip datasheet DS40001927B section on electrical characteristics for sleep current specifications.
The PIC18F13K22T-I/SO in 20-SOIC package dissipates negligible power due to its low active current (typically <10 mA at 64 MHz) and CMOS design. No heatsink is required. However, in sealed enclosures operating above 60C ambient, verify thermal rise using theta_JA of approximately 70 C/W for SO-20. For industrial designs, ensure junction temperature stays below 125C maximum.
Do not exceed 5.5 V on VDD - even brief overvoltage events can damage the Flash memory and core. For ICSP programming, ensure RB6/PGC and RB7/PGD are not pulled down externally during reset, as these pins serve as programming clock and data. When migrating code from PIC16 to PIC18 architecture, note that the instruction set differs - recompile using XC8 compiler rather than legacy XC16 tools.
Compliance Information
RoHS compliant per Microchip product page. Standard -I industrial grade (not AEC-Q100 qualified for automotive safety). For automotive applications, use AEC-Q100-qualified variants from the PIC18F1XK22 family.
