PIC18F14K22-I/SO - 8-Bit 64MHz XLP MCU 16KB Flash 20-SOIC
부품 번호: PIC18F14K22-I/SO ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.2 | $22.00 |
| 100 | $1.95 | $195.00 |
| 500 | $1.72 | $860.00 |
| 1,000 | $1.52 | $1,520.00 |
PIC18F14K22-I/SO 개요
A microcontroller (MCU) is a single-chip computer integrating a CPU core, program memory, data memory, peripherals, and I/O. The 8-bit PIC18 family uses a modified Harvard architecture with a RISC instruction set optimized for C compilers, balancing code density with deterministic interrupt response. XLP technology specifically targets battery-powered applications through nanoWatt sleep modes that cut quiescent current into the sub-microamp range. Within the broader embedded hierarchy, the PIC18 sits below 16-bit PIC24/dsPIC and 32-bit ARM Cortex-M families in computational throughput, but offers lower cost, simpler toolchains, and decades of firmware stability.
Key differentiating features include 16 KB self-programmable Flash rated for 100K erase/write cycles, 256 bytes EEPROM rated for 1M cycles, 18 I/O pins with interrupt-on-change, an enhanced 10-bit ADC with up to 12 channels, dual analog comparators, Capture/Compare/PWM modules, and a 31 kHz internal oscillator allowing operation without an external crystal. The MSSP module supports both SPI and I2C master/slave protocols, while the EUSART provides RS-232/485 connectivity.
Internally the PIC18F14K22 uses a 16-bit instruction word with an 8-bit data path, allowing single-cycle execution for most instructions at 64 MHz (15.6 ns instruction cycle). The device supports in-circuit serial programming (ICSP) and in-circuit debugging via two-wire ICD. Voltage regulation operates across 1.8 V to 5.5 V VDD with brown-out reset and a configurable low-voltage detect circuit.
Typical applications include low-power sensor nodes, battery-powered IoT peripherals, HVAC thermostat controls, small appliance user interfaces, USB-to-UART bridges, and embedded control loops in industrial sensor conditioning. The wide operating voltage and XLP sleep modes make it attractive for energy-harvesting and remote-control designs where quiescent current dominates battery life.
When designing with this MCU, allocate a robust decoupling network (100 nF plus 10 uF bulk) within 5 mm of VDD, and connect MCLR through a 10 kohm pull-up with the ICSP connector in series. Unused I/O should be configured as outputs and tied low to minimize current leakage. Migration is straightforward: PIC18F13K22 (8 KB Flash) shares the same peripheral set and SOIC-20 pinout.
This page synthesizes distributor stock, drop-in alternatives in the SOIC-20 footprint, parametric comparisons, and PCB design guidance not collected in any single datasheet or catalog entry, helping engineers select and qualify the part faster.
드롭인 대체품: PIC18F14K22-I/SO — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC18F14K22-I/SO (동일 폼 팩터 및 풋프린트) — 차이점: Package, Core Architecture, Timers, Operating Temperature, ADC.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC18F13K22-I/SO
✅ 드롭인✓ 재고 있음
$1.49 / 개
데이터시트 보기 →PIC18F14K22-I/SP
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC18F14K22T-I/SO
✅ 드롭인✓ 재고 있음
$1.48 / 개
데이터시트 보기 →PIC18F14K22-I/SS
✅ 드롭인✓ 재고 있음
$1.95 / 개
데이터시트 보기 →PIC18F14K22-E/SO
✅ 드롭인✓ 재고 있음
$1.62 / 개
데이터시트 보기 →PIC18LF14K22-I/SO
✅ 드롭인✓ 재고 있음
$1.15 / 개
데이터시트 보기 →PIC18F24K22-I/SO
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC18F14K22-I/SO 최대 정격 & 전기적 특성
| Core Architecture | PIC18 (8-bit, Harvard) |
| CPU Speed | 64 MHz (max), 16 MIPS |
| Program Memory (Flash) | 16 KB (8K x 16) |
| SRAM | 512 bytes |
| EEPROM | 256 bytes |
| I/O Pins | 18 |
| ADC | 10-bit, up to 12 channels |
| Analog Comparators | 2 |
| Timers | 16-bit and 8-bit |
| PWM Modules | Enhanced CCP |
| Communication | EUSART, MSSP (SPI/I2C) |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| 동작 온도 | -40C to +85C (I grade) |
| 패키지 | 20-SOIC (7.50 mm) |
| Internal Oscillator | 31 kHz LF + 16 MHz HF |
| Programming/Debug | ICSP + 2-wire ICD |
| Flash Endurance | 100K (typical) |
| EEPROM Endurance | 1M cycles (typical) |
PIC18F14K22-I/SO 핀 구성
| 핀 1 | RA3/AN3/VREF+/C1IN+ — Bidirectional I/O / ADC input / voltage reference / comparator input |
| 핀 2 | RA0/AN0/C1IN-/ULPWU — Bidirectional I/O / ADC input / comparator input / ultra-low-power wake-up |
| 핀 3 | RA1/AN1/C2IN-/VREF- — Bidirectional I/O / ADC input / comparator 2 input / voltage reference |
| 핀 4 | MCLR/VPP/RA5 — Master clear reset (active low) / programming voltage / bidirectional I/O |
| 핀 5 | RA7/OSC1/CLKI — Bidirectional I/O / crystal oscillator input / external clock input |
| 핀 6 | RA6/OSC2/CLKO — Bidirectional I/O / crystal oscillator output / clock output |
| 핀 7 | VDD — Positive supply voltage |
| 핀 8 | VSS — Ground reference |
| 핀 9 | RC0/SOSCO — Bidirectional I/O / 31 kHz secondary oscillator output |
| 핀 10 | RC1/SOSCI/C2IN+ — Bidirectional I/O / 31 kHz secondary oscillator input / comparator 2 input |
| 핀 11 | RC2/CCP1/P1A — Bidirectional I/O / Capture-Compare-PWM / PWM output |
| 핀 12 | RC3/SCK/SCL — Bidirectional I/O / SPI clock / I2C clock |
| 핀 13 | RC4/SDI/SDA — Bidirectional I/O / SPI data in / I2C data |
| 핀 14 | RC5/SDO — Bidirectional I/O / SPI data out |
| 핀 15 | RC6/TX/CK — Bidirectional I/O / EUSART transmit / clock |
| 핀 16 | RC7/RX/DT — Bidirectional I/O / EUSART receive / data |
| 핀 17 | RB7/PGD — Bidirectional I/O / ICD data |
| 핀 18 | RB6/PGC — Bidirectional I/O / ICD clock |
| 핀 19 | RB5/AN11 — Bidirectional I/O / ADC input |
| 핀 20 | RB4/AN10 — Bidirectional I/O / ADC input |
일반적인 애플리케이션
PIC18F14K22-I/SO 적합 용도: 6 애플리케이션s: Battery-Powered IoT Sensor Node, HVAC Thermostat Controller, USB-to-UART Bridge / Debug Adapter, Small Appliance User Interface, Industrial Sensor Conditioning Module, Remote Control / Energy Harvesting Device.
Battery-Powered IoT Sensor Node
The PIC18F14K22-I/SO fits battery-powered IoT sensor nodes because its nanoWatt XLP sleep mode drops quiescent current below 1 uA with RTCC active, dramatically extending coin-cell battery life to multi-year operation. The 64 MHz CPU wakes quickly from sleep, samples a sensor via the 10-bit ADC, processes the result, and transmits via EUSART or MSSP SPI before returning to sleep. The 16 KB Flash accommodates TinyOS-style protocol stacks or LoRaWAN device drivers, while the 256-byte EEPROM stores configuration parameters through 1M writes per cell count. The 1.8-5.5 V VDD range simplifies direct Li-ion or 2xAA battery connection without a boost converter. Pin-count-conscious designs benefit from the 20-SOIC compact footprint, and ICSP allows in-field firmware updates.
추천
HVAC Thermostat Controller
The PIC18F14K22-I/SO is well suited for HVAC thermostat controllers thanks to its dual analog comparators for setpoint detection, 10-bit ADC for NTC thermistor readout, and PWM modules driving TRIAC gates. The 16 KB Flash holds week-day scheduling tables and PID control loops, while 512 bytes SRAM handles stack plus run-time telemetry buffers. Industrial -40C to +85C operation guarantees the part survives attic and equipment-room environments, and the EUSART drives a 4-wire UART display panel. Brown-out reset prevents corruption during brownouts from compressor inrush, and the 31 kHz LFINTOSC keeps the RTC accurate across power cycles.
추천
USB-to-UART Bridge / Debug Adapter
In USB-to-UART bridge adapters and ICSP debugger dongles, the PIC18F14K22-I/SO provides a programmable host for protocol translation. The EUSART supports RS-232/RS-485 baud rates well above 115200, while the MSSP handles SPI debug interfaces. With 16 KB Flash, custom firmware can implement vendor-specific commands, GPIO bit-banging for JTAG/SWD pin control, and interrupt-on-change pin events. The 1.8-5.5 V VDD range matches USB-powered designs directly without level translation. ICSP allows the MCU itself to be reprogrammed in the field via the same USB port, simplifying test fixtures.
추천
Small Appliance User Interface
Small appliance user interfaces (coffee makers, washing machines, microwave ovens) benefit from the PIC18F14K22-I/SO because it integrates all required peripherals: PWM for motor and buzzer drive, ADC for thermistor and weight-sensor reading, GPIO for keypad matrix and LED matrix scan, and EUSART for communication with an inverter board. The 16 KB Flash easily accommodates menu state machines, multi-language strings, and EEPROM-backed user preferences. ICSP enables factory-line programming via a 2-wire interface, and the SOIC-20 footprint fits on a small PCB alongside a 7-segment or TFT display.
추천
Industrial Sensor Conditioning Module
Industrial sensor conditioning modules use the PIC18F14K22-I/SO to bridge 4-20 mA analog loops, strain-gauge bridges, and RTDs into digital outputs. The dual analog comparators handle window-comparator thresholds, while the 10-bit ADC with 12 channels samples multiple sensors sequentially. The MSSP in I2C mode reads digital sensors concurrently, and EUSART drives RS-485 fieldbus at 250 kbaud. Industrial -40C to +85C operation plus brown-out reset provides reliability in factory-floor installations, and the small SOIC-20 footprint fits inside a DIN-rail terminal-block enclosure.
추천
Remote Control / Energy Harvesting Device
Remote control units, garage-door openers, and energy-harvesting wireless switches use the PIC18F14K22-I/SO for its sub-microamp sleep current and self-programmable Flash. The 31 kHz LFINTOSC maintains millisecond-accurate wake timing without an external crystal, the 18 I/O pins drive key-scan plus decoder reading and actuators, and PWM generates infrared carrier modulation for RC protocols. The 1.8 V VDD minimum allows direct operation from a single photovoltaic cell or vibration harvester through a supercapacitor. ICSP allows post-assembly firmware personalization via the test fixture without a separate bootloader.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC18F14K22-I/SO — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC18F13K22-I/SO | PIC18F14K22-E/SO | PIC18LF14K22-I/SO |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SOIC | 20-SOIC | 20-SOIC | 20-SOIC |
| Flash Memory | 16 KB | 8 KB | 16 KB | 16 KB |
| SRAM | 512 bytes | 512 bytes | 512 bytes | 512 bytes |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| CPU Speed | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V |
| Temperature Grade | I grade -40C to +85C | I grade -40C to +85C | E grade -40C to +125C | I grade -40C to +85C |
주요 차별점
- Largest Flash in the 20-pin PIC18F1XK22 family (vs PIC18F13K22-I/SO)
- Highest temperature grade available in this family (vs PIC18F14K22-I/SO)
- Full VDD range for 3.3 V and 5 V designs (vs PIC18LF14K22-I/SO)
설계 노트
Place a 100 nF ceramic decoupling capacitor within 5 mm of VDD (pin 7) and VSS (pin 8), plus a 10 uF bulk capacitor for transient loads. Estimated: at 64 MHz CPU active, current peaks approach 12 mA - the bulk capacitor must source this without excessive droop. Brown-out reset must be enabled in CONFIG1 to avoid Flash corruption during power-down. For battery operation, configure the LFINTOSC source and avoid driving any I/O pin at high current.
Route the ICSP connector traces (PGC pin 18, PGD pin 17, MCLR pin 4) directly to a 6-pin header at the board edge. Estimate: a 10 kohm pull-up on MCLR is required; the ICSP connector must include an isolation resistor or a jumper to allow in-circuit programming without disrupting downstream reset circuitry. Keep analog and digital grounds separated and join at a single point at the MCU VSS pin to avoid ground loops.
Do not drive the I/O current beyond the 25 mA per-pin / 200 mA per-port ratings or you may damage the part. Configure unused I/O as outputs driving low rather than inputs to avoid floating-pin current leakage (potentially 1-2 mA per pin). When migrating code from PIC16, verify extended instruction availability since PIC18 supports a richer C-set-by-default instruction set with single-cycle multiply. The LFINTOSC and HFINTOSC must be tuned via OSCTUNE for accurate UART baud rates.
규정 준수 정보
RoHS and REACH compliant per Microchip product page. Lead-free SOIC-20 package. AEC-Q100 qualified variants available under separate part numbers (e.g., PIC18F14K22T-I/SO automotive grade). Halogen-free.
