PIC18F14K22-E/SS - 8-bit XLP MCU 16KB Flash 48MHz | Microchip
MPN: PIC18F14K22-E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.71 | $4.71 |
| 10 | $4.2 | $42.00 |
| 100 | $3.55 | $355.00 |
| 500 | $3.02 | $1,510.00 |
| 1,000 | $2.65 | $2,650.00 |
PIC18F14K22-E/SS Overview
What is an 8-bit PIC microcontroller? A PIC (Peripheral Interface Controller) microcontroller is a compact, self-contained computing device built around an 8-bit or 16-bit RISC core, integrated with flash program memory, RAM, EEPROM, timers, ADC, communication peripherals, and I/O on a single chip. PIC18 series parts represent Microchip's high-performance 8-bit tier, featuring a C-compiler-optimized instruction set and an industry-leading peripheral set. The PIC18F14K22 sits within the broader taxonomy: PIC18F1XK22 -> PIC18F family -> PIC microcontroller -> 8-bit MCU -> microcontroller -> embedded computing IC -> semiconductor.
Key features include 18 I/O lines, four timers (Timer0/1/2/3), two analog comparators, a 10-bit ADC with up to 11 channels, enhanced PWM modules, MSSP/SPI/I2C and EUSART communication, an internal oscillator, and nanoWatt XLP technology that delivers sleep currents in the tens of nanoamp range. These features make it suitable for battery-powered applications where energy efficiency is critical.
Architecturally, the PIC18F14K22 uses an enhanced Harvard architecture with separate program and data buses, an 8-bit ALU with hardware multiply, and 31-level stack support. The integrated voltage regulator supports operation from a single 1.8V to 5.5V supply, eliminating the need for external level shifters. The nanoWatt XLP technology provides multiple low-power modes (Run, Idle, Sleep, and deep sleep variants) that allow current consumption to scale with workload.
Typical applications include handheld consumer electronics, remote sensor nodes, LED lighting controllers, low-end motor control, USB-to-UART bridges, home automation peripherals, and battery-powered IoT edge devices. The wide 1.8V-5.5V range also makes it useful in industrial control systems with unregulated supplies.
When designing with this MCU, ensure decoupling capacitors are placed close to VDD/VSS pins, follow Microchip's guidance on in-circuit serial programming (ICSP) pin usage, and verify the I/O current budget does not exceed 25 mA per pin or 200 mA total to avoid latch-up and reliability issues.
This page synthesizes distributor pricing across DigiKey, Mouser, and LCSC, drop-in same-family alternatives from Microchip, and practical design notes not found in the manufacturer datasheet, giving engineers a single, complete reference for the PIC18F14K22-E/SS.
Drop-in alternatives for PIC18F14K22-E/SS — 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 PIC18F14K22-E/SS (same form factor and footprint) — differing in Package, Timers, Core Architecture, Program Memory (Flash), ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F14K22-I/SS
✅ Drop-In✓ In Stock
$1.95 / Unit
View Datasheet →PIC18LF14K22-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F13K22-E/SS
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC18F14K22-E/SO
✅ Drop-In✓ In Stock
$1.62 / Unit
View Datasheet →PIC18F14K22T-I/SS
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC18F13K22-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F14K22-E/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC18 enhanced Harvard RISC |
| Maximum CPU Frequency | 48 MHz (16 MIPS) |
| Program Memory (Flash) | 16 KB (8K x 16) |
| Data RAM | 512 bytes |
| Data EEPROM | 256 bytes |
| Operating Voltage Range | 1.8 V to 5.5 V |
| I/O Pins | 18 |
| Timers | 4 (Timer0/1/2/3) |
| Analog Comparators | 2 |
| ADC | 10-bit, up to 11 channels |
| Communication Peripherals | MSSP (SPI/I2C), EUSART (UART) |
| PWM Channels | Enhanced PWM, multiple channels |
| Low-Power Technology | nanoWatt XLP |
| Package | 20-pin SSOP (5.30 mm body width) |
| Operating Temperature Range | -40 C to +125 C (E = Extended) |
| ICSP (In-Circuit Serial Programming) | Yes |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC18F14K22-E/SS Pin Configuration
| Pin 1 | RA5/AN4/CPS5/SS1/HLVDIN/T1CKI/RCV — Digital I/O / ADC / touch / MSSP SS / High-Low Voltage Detect input |
| Pin 2 | RA0/AN0/CPS0/SS2 — Digital I/O / ADC input channel 0 |
| Pin 3 | RA1/AN1/CPS1 — Digital I/O / ADC input channel 1 |
| Pin 4 | RA2/AN2/CPS2 — Digital I/O / ADC input channel 2 |
| Pin 5 | RA3/AN3/CPS3/VREF+ — Digital I/O / ADC input channel 3 / ADC positive reference |
| Pin 6 | RA4/AN4/CPS4/SRNQ/T0CKI — Digital I/O / Timer0 clock input |
| Pin 7 | VDD — Positive supply voltage (1.8V-5.5V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA7/OSC1/CLKIN — Digital I/O / crystal oscillator input / external clock |
| Pin 10 | RA6/OSC2/CLKOUT — Digital I/O / crystal oscillator output / system clock out |
| Pin 11 | RC5/P1B/CCP1/T3CKI — Digital I/O / Enhanced PWM output / Timer3 clock input |
| Pin 12 | RC4/C2OUT/P1D/SDA1/SDO1 — Digital I/O / comparator 2 output / I2C data / SPI data out |
| Pin 13 | RC3/P1C/SCK1/SCL1 — Digital I/O / Enhanced PWM / SPI clock / I2C clock |
| Pin 14 | RC2/P1A/CCP1 — Digital I/O / Enhanced PWM channel 1A / Capture/Compare/PWM 1 |
| Pin 15 | RC1/AN8/CPS8 — Digital I/O / ADC input channel 8 |
| Pin 16 | RC0/AN6/CPS6 — Digital I/O / ADC input channel 6 |
| Pin 17 | MCLR/VPP/ICSPCLK — Reset input (active low) / programming voltage / ICSP clock |
| Pin 18 | RB7/ICSPDAT/ICCDAT — Digital I/O / ICSP data / ICD data |
| Pin 19 | RB6/ICSPCLK — Digital I/O / ICSP clock (alternate) |
| Pin 20 | VSS — Ground reference |
Typical Applications
PIC18F14K22-E/SS is suitable for 7 applications: Battery-Powered IoT Sensor Nodes, Consumer Remote Controls (IR/RF), LED Lighting Controllers, USB-to-UART/I2C Bridge Adapters, Industrial Sensor Interface Modules, Handheld Medical and Wellness Devices, Home Automation Edge Controllers.
Battery-Powered IoT Sensor Nodes
The PIC18F14K22-E/SS is well-suited for battery-powered IoT sensor nodes due to its nanoWatt XLP technology that delivers sleep currents below 100 nA, enabling multi-year battery life from a single coin cell. The 16 KB flash accommodates moderate sensor-fusion firmware, while the 1.8V-5.5V range supports direct connection to single-cell Li-ion or 3V coin-cell chemistries without regulators. Its 10-bit ADC with up to 11 channels multiplexes temperature, humidity, and battery-voltage monitoring, and the integrated EUSART/MSSP enables low-duty-cycle RF module communication via SPI/UART. Designers can place the device directly between the battery and sensor array, using deep-sleep wake-on-interrupt patterns to maximize lifetime while the 48 MHz CPU provides headroom for edge-processing tasks.
Recommended
Consumer Remote Controls (IR/RF)
The PIC18F14K22-E/SS fits IR/RF remote control designs where low cost, low standby current, and compact form factor are essential. Its 48 MHz CPU executes button-debounce and protocol-encoding routines (RC5, NEC, SIRC) without taxing the instruction budget, and the 16 KB flash stores multiple protocol tables for universal-remote applications. The nanoWatt XLP Sleep mode draws under 100 nA typical, so a 2x AAA battery can power the remote for years. Hardware PWM drives IR LED modulation without CPU intervention, while the 18 I/O pins provide ample matrix scanning capacity for 8x8 button grids.
Recommended
LED Lighting Controllers
For LED lighting and signage controllers, the PIC18F14K22-E/SS delivers the precise PWM control and communication interfaces needed for color-mixing, dimming, and addressable light chains. The Enhanced PWM module generates multiple PWM channels simultaneously for RGB(W) outputs, while the MSSP drives WS2812B/APA102 addressable LED strips via SPI. The 16 KB flash accommodates dynamic lighting effects, scheduling, and DMX-512 frame parsing. Its 5.5V tolerance allows direct connection to 5V LED rails, and the wide temperature range ensures reliability in enclosed luminaires.
Recommended
USB-to-UART/I2C Bridge Adapters
The PIC18F14K22-E/SS serves as a low-cost bridge MCU converting between USB and serial protocols when paired with an external USB transceiver. With 16 KB of flash, it implements CDC class drivers and protocol translation, while the EUSART and MSSP peripherals handle UART, SPI, and I2C endpoints simultaneously. The 48 MHz CPU keeps up with full-speed USB polling without missing frames, and the SSOP-20 footprint allows the bridge to fit inside USB dongle enclosures. Its 5.5V tolerance and ESD-robust GPIO simplify integration into industrial PC and embedded Linux debug environments.
Recommended
Industrial Sensor Interface Modules
For industrial 4-20 mA loop-powered or 24V-bus sensor modules, the PIC18F14K22-E/SS provides robust processing and a wide operating voltage range compatible with industrial supply rails. Its extended temperature grade (-40 C to +125 C) suits factory-floor cabinets and outdoor enclosures, while the 16 KB flash accommodates Modbus RTU framing, calibration tables, and sensor linearization math. The 10-bit ADC digitizes transducer voltages, and the EUSART/MSSP provides RS-485 (via external transceiver) and SPI sensor expansion. Hardware timers implement precise PWM outputs for valve/actuator control.
Recommended
Handheld Medical and Wellness Devices
In handheld medical and wellness devices such as thermometers, pulse oximeters, and personal health monitors, the PIC18F14K22-E/SS provides the right blend of low power, mixed-signal integration, and safety certifications. The nanoWatt XLP Sleep mode extends battery life across patient monitoring cycles, while the 10-bit ADC reads optical/thermal sensor front-ends. Its IEC 60730 Class B software-detectability libraries from Microchip enable functional-safety implementation, and the SSOP-20 form factor fits compact handheld enclosures. The wide 1.8V-5.5V range supports direct operation from single-cell Li-ion packs.
Recommended
Home Automation Edge Controllers
The PIC18F14K22-E/SS is a strong fit for home automation edge controllers (smart switches, dimmers, motorized blinds) where cost, size, and reliability matter. Its 18 I/O pins handle multiple relay/triac outputs and button inputs, while the 16 KB flash accommodates Zigbee/Z-Wave binding tables, scene logic, and OTA update hooks. The MSSP supports SPI flashes for firmware expansion, and the EUSART links to RF modules. Wide 1.8V-5.5V operation accepts AC-line-derived DC supplies, and the nanoWatt XLP technology keeps idle draw negligible in always-on wall-mounted devices.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F14K22-E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F14K22-I/SS | PIC18LF14K22-I/SS | PIC18F13K22-E/SS | PIC18F13K22-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP (5.30 mm) | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Flash Memory | 16 KB | 16 KB | 16 KB | 8 KB (-50%) | 8 KB (-50%) |
| Maximum CPU Frequency | 48 MHz | 48 MHz | 32 MHz (low-voltage) | 48 MHz | 48 MHz |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Operating Temperature | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) |
| RAM | 512 B | 512 B | 512 B | 512 B | 512 B |
| I/O Pins | 18 | 18 | 18 | 18 | 18 |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP |
Key Differentiators
- Extended temperature range supports industrial environments (vs PIC18F14K22-I/SS)
- Full 5.5V supply tolerance vs low-voltage cap (vs PIC18LF14K22-I/SS)
- 16 KB flash vs 8 KB variant (vs PIC18F13K22-E/SS)
- 48 MHz performance vs 32 MHz LF ceiling (vs PIC18LF14K22-I/SS)
Design Notes
Estimated: At 48 MHz CPU clock with 5.5V supply and active peripherals, the PIC18F14K22-E/SS draws approximately 11 mA (datasheet typical). Decoupling must include a 100 nF ceramic capacitor placed within 5 mm of VDD pin 7, plus a 10 uF bulk capacitor if the supply impedance exceeds 1 ohm. For battery-powered designs, transition to Sleep mode whenever CPU is idle: Sleep current is under 100 nA typical at 3V per the nanoWatt XLP specification.
Place a 100 nF ceramic decoupling capacitor as close as possible to VDD (pin 7) and another to the second VSS (pin 20) for SSOP packages where both pins are present. Connect all VSS pins to a low-impedance ground plane, and route high-speed signals (ICSP, oscillator) away from analog ADC inputs to minimize coupling. The ICSP/ICD pins (RB6/RB7) must remain accessible for in-circuit programming - do not directly load these with strong pull-up resistors.
Do not exceed the 25 mA sink/source per I/O pin or 200 mA total package dissipation. The MCLR/VPP pin (pin 17) requires a 10 kohm pull-up to VDD if not driven by external reset circuitry; floating MCLR can cause erratic resets. When using the internal oscillator, verify the IRCF configuration bits match your latency requirements - default configuration may not provide adequate accuracy for UART communication without calibration. Always include a configuration-word initialization routine to avoid runaway code from default fuses.
Estimated: At full 48 MHz CPU utilization with all peripherals active and 5.5V supply, internal power dissipation reaches roughly 60 mW (V x I = 5.5 x 0.011). The SSOP-20 package provides theta_JA of approximately 90 C/W on a standard JEDEC 4-layer test board, producing a junction temperature rise of about 5 C above ambient. This is well within the 125 C maximum operating temperature and requires no heatsink - the extended temperature grade (-40 C to +125 C) supports industrial and consumer enclosures without thermal management.
Compliance Information
RoHS compliant per Microchip product page. Industrial/Extended temperature grade (E suffix) provides -40 C to +125 C operation. Not AEC-Q100 qualified for automotive; for automotive applications, refer to AEC-qualified PIC18 variants in the K22 family.
