PIC18F44K22-I/P - 8-bit 64MHz XLP MCU 16KB Flash 40-PDIP | Microchip
MPN: PIC18F44K22-I/P ✓ نشطPIC18F44K22-I/P نظرة عامة
A PIC18 microcontroller is an 8-bit Harvard-architecture MCU built around a RISC core with hardware accumulator, hardware multiply, and a peripheral set optimized for low-power mixed-signal embedded designs. PIC18 sits at the top of Microchip's 8-bit PIC portfolio and shares a common instruction set across 28/40/44-pin packages, enabling firmware portability within the family. Within the power-management IC hierarchy it belongs to the broader "microcontroller -> MCU -> embedded controller -> semiconductor" taxonomy.
Key features include 16KB self-programmable Flash, hardware CCP/ECCP modules, multiple Enhanced USART, SPI, I2C interfaces, a 10-bit ADC with up to 28 input channels, mTouch capacitive touch peripherals, nanoWatt XLP sleep currents as low as 20 nA, and 5 CCP PWM channels for motor and lighting control. The -I/P suffix denotes the industrial temperature grade (-40C to +85C) and PDIP-40 package.
The architecture combines an 8-bit data path with a 16-bit instruction word, an 8-level hardware stack, and C-optimized architecture, which simplifies compiler output while preserving deterministic interrupt response. The peripheral set (ADC, comparators, CTMU, mTouch, EUSART, MSSP, ECCP) supports sensing, communication, and actuation without external logic.
Typical applications include low-power sensor nodes, home-automation appliances, industrial control panels, capacitive touch user interfaces, motor control, and USB/serial bridging in cost-sensitive embedded designs.
When designing with this MCU, leave headroom on Vdd for ADC accuracy and add a 100 nF decoupling cap adjacent to every supply pin. For firmware migration to newer families, validate the SFR map because newer Q-series parts reorganize peripheral registers.
بدائل مباشرة لـ PIC18F44K22-I/P — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC18F44K22-I/P (نفس عامل الشكل والبصمة) — يختلف في ADC, Core, Package, Timers, Mounting Type.
PIC18F45K22-I/P
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F43K22-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F44K22-E/P
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F442-I/P
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F4410-I/P
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F44K22-I/P الحدود القصوى والخصائص الكهربائية
| Family | PIC18F K22 |
| Core | 8-bit PIC18 Harvard RISC |
| Program Memory | 16 KB Flash |
| RAM | 768 bytes |
| EEPROM | 256 bytes |
| Max CPU Frequency | 64 MHz (16 MIPS) |
| جهد التغذية | 2.3 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit, up to 28 channels |
| العلبة | 40-pin PDIP (0.600") |
| درجة حرارة التشغيل | -40C to +85C (industrial) |
| نوع التركيب | Through-Hole |
| ROM Type | Flash |
| مستوى MSL | 1 (unlimited) |
| حالة RoHS | Compliant |
تكوين أطراف PIC18F44K22-I/P
| دبوس 1 | MCLR/RE3 — Master Clear (reset) input / digital I/O pin RE3 |
| دبوس 2 | RA0/AN0 — PORTA bit 0 / ADC input AN0 |
| دبوس 3 | RA1/AN1 — PORTA bit 1 / ADC input AN1 |
| دبوس 4 | RA2/AN2 — PORTA bit 2 / ADC input AN2 |
| دبوس 5 | RA3/AN3 — PORTA bit 3 / ADC input AN3 |
| دبوس 6 | RA4 — PORTA bit 4 |
| دبوس 7 | RA5/AN4 — PORTA bit 5 / ADC input AN4 |
| دبوس 8 | RE0/AN5 — PORTE bit 0 / ADC input AN5 |
| دبوس 9 | RE1/AN6 — PORTE bit 1 / ADC input AN6 |
| دبوس 10 | RE2/AN7 — PORTE bit 2 / ADC input AN7 |
| دبوس 11 | VDD — Positive supply voltage |
| دبوس 12 | VSS — Ground reference |
| دبوس 13 | OSC1/CLKI — Crystal oscillator input or external clock |
| دبوس 14 | OSC2/CLKO — Crystal oscillator output or clock out |
| دبوس 15 | RC0/SOSO — PORTC bit 0 / SOSC secondary oscillator output |
| دبوس 16 | RC1/SOSI — PORTC bit 1 / SOSC secondary oscillator input |
| دبوس 17 | RC2 — PORTC bit 2 |
| دبوس 18 | RC3 — PORTC bit 3 |
| دبوس 19 | RD0 — PORTD bit 0 |
| دبوس 20 | RD1 — PORTD bit 1 |
| دبوس 21 | RD2 — PORTD bit 2 |
| دبوس 22 | RD3 — PORTD bit 3 |
| دبوس 23 | RC4 — PORTC bit 4 |
| دبوس 24 | RC5 — PORTC bit 5 |
| دبوس 25 | RC6 — PORTC bit 6 |
| دبوس 26 | RC7 — PORTC bit 7 |
| دبوس 27 | RD4 — PORTD bit 4 |
| دبوس 28 | RD5/CCP1 — PORTD bit 5 / Capture/Compare/PWM 1 |
| دبوس 29 | RD6/CCP2 — PORTD bit 6 / Capture/Compare/PWM 2 |
| دبوس 30 | RD7/CCP3 — PORTD bit 7 / Capture/Compare/PWM 3 |
| دبوس 31 | VSS — Ground reference |
| دبوس 32 | VDD — Positive supply voltage |
| دبوس 33 | RB0 — PORTB bit 0 / interrupt-on-change |
| دبوس 34 | RB1 — PORTB bit 1 / interrupt-on-change |
| دبوس 35 | RB2 — PORTB bit 2 / interrupt-on-change |
| دبوس 36 | RB3 — PORTB bit 3 / interrupt-on-change |
| دبوس 37 | RB4 — PORTB bit 4 / interrupt-on-change |
| دبوس 38 | RB5 — PORTB bit 5 / interrupt-on-change |
| دبوس 39 | RB6/PGC — PORTB bit 6 / ICSP clock |
| دبوس 40 | RB7/PGD — PORTB bit 7 / ICSP data |
التطبيقات النموذجية
PIC18F44K22-I/P مناسب لـ 7 التطبيقs: Low-Power Sensor Nodes, Home Appliance Control, Industrial Control Panels, Capacitive Touch User Interfaces, Motor Control and PWM Drive, USB/Serial Bridging, Automotive Body Electronics.
Low-Power Sensor Nodes
The PIC18F44K22-I/P's nanoWatt XLP sleep current and 2.3V-5.5V supply range make it a strong fit for battery-driven sensor nodes such as wireless thermostats, utility meters, and environmental monitors. At 64 MHz / 16 MIPS the device can service sensor reads and transmit bursts within tight active windows, while pulling micro-amps during sleep to extend coin-cell life into the multi-year range. The 28-channel 10-bit ADC is sufficient for multi-element sensor front-ends.
موصى به
Home Appliance Control
The PIC18F44K22-I/P serves as the main controller for white-goods appliances (washing machines, dishwashers, induction cookers) where it sequences motors, reads user panels, and drives displays. The 5 ECCP PWM channels simplify BLDC and triac-based load control, while the 28-channel ADC handles NTC temperature sensing and current monitoring. Its 5V tolerance and industrial -40C to +85C grade suit harsh kitchen and laundry environments.
موصى به
Industrial Control Panels
The PIC18F44K22-I/P suits industrial HMI panels, PLC expansion modules, and process-control front-ends where deterministic 8-bit performance and an extensive peripheral set are needed without the cost of a Cortex-M0. Its EUSART supports RS-485 Modbus links, while the MSSP block enables SPI/I2C peripherals. The 36 I/O pins and 10-bit ADC allow direct interfacing with industrial sensors and actuator drivers.
موصى به
Capacitive Touch User Interfaces
With the integrated mTouch peripheral and CTMU charge-time measurement unit, the PIC18F44K22-I/P supports robust capacitive touch buttons, sliders, and proximity sensors without external ICs. The 64 MHz core can debounce and report touch events within 1 ms, while the XLP sleep modes keep idle touch scan power under 100 uA. This suits kitchen appliances, medical user interfaces, and consumer remote controls.
موصى به
Motor Control and PWM Drive
The PIC18F44K22-I/P's 5 Enhanced CCP modules deliver flexible PWM generation for BLDC, stepper, and triac-driven AC motors. With 16 MIPS throughput and dedicated timers, it can implement field-oriented control loops for sub-kW motors or simple V/Hz scalar control for fans and pumps. The same ADC samples back-EMF and current, simplifying hardware and BOM cost.
موصى به
USB/Serial Bridging
The PIC18F44K22-I/P, paired with its on-chip EUSART and MSSP, commonly serves as a UART-to-SPI/I2C bridge or as a CDC virtual COM port device when paired with an external USB transceiver. The 64 MHz core and 16 MIPS handle USB 2.0 full-speed interrupt and bulk transactions with low protocol overhead. This suits industrial configuration tools, IoT gateways, and legacy equipment modernization.
موصى به
Automotive Body Electronics
The PIC18F44K22-I/P's industrial temperature grade and robust peripheral set suit non-safety automotive body applications such as door modules, seat controllers, and ambient lighting. For AEC-Q100-qualified projects, the -E/P extended-temperature variant in the same 40-pin PDIP is also available. The 36 I/O pins drive LEDs, relays, and LIN slaves, while the 10-bit ADC reads sensors across the cabin.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC18F44K22-I/P — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC18F45K22-I/P | PIC18F43K22-I/P | PIC18F44K22-E/P | PIC18F442-I/P | PIC18F4410-I/P |
|---|---|---|---|---|---|---|
| Package | 40-pin PDIP (0.600") | 40-pin PDIP (0.600") - same | 40-pin PDIP (0.600") - same | 40-pin PDIP (0.600") - same | 40-pin PDIP (0.600") - same | 40-pin PDIP (0.600") - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 16 KB | 32 KB (+100%) | 8 KB (-50%) | 16 KB (same) | 16 KB (same) | 16 KB (same) |
| RAM | 768 bytes | 1024 bytes (+33%) | 512 bytes (-33%) | 768 bytes (same) | 768 bytes (same) | 768 bytes (same) |
| Max CPU Frequency | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +125C (extended) | -40C to +85C | -40C to +85C |
| Supply Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 4.2 V to 5.5 V (older spec) | 2.0 V to 5.5 V |
| I/O Pins | 36 | 36 | 36 | 36 | 36 | 36 |
أبرز الفروقات
- nanoWatt XLP extreme-low-power technology with sub-microamp sleep currents (مقابلPIC18F442-I/P)
- Higher 64 MHz / 16 MIPS throughput vs legacy F442 40 MHz / 10 MIPS (مقابلPIC18F442-I/P)
- Drop-in upgrade path with 32 KB Flash and 1024 B RAM (مقابلPIC18F43K22-I/P)
ملاحظات التصميم
Place a 100 nF decoupling capacitor within 5 mm of every Vdd/Vss pin pair (pins 11/12 and 31/32 on the 40-pin PDIP). For battery applications drawing <100 uA average, also add a 10 uF bulk capacitor on the Vdd rail to absorb inrush during transmit bursts. Use a ferrite bead on Vdd if the MCU shares a rail with a noisy motor driver.
Route the crystal traces (OSC1/OSC2, pins 13/14) short and symmetric, with a ground guard ring, and keep them away from PWM edges. For mTouch capacitive sensing, dedicate adjacent ground pour and avoid nearby traces that inject noise into the CTMU charge measurement. Ensure MCLR (pin 1) has a 10 kohm pull-up and a 100 nF cap to ground for in-circuit serial programming (ICSP) robustness.
Do not assume SFR compatibility when porting PIC18F44K22 firmware to PIC18F442 - the legacy F442 family uses different peripheral register layouts and runs at 40 MHz max (10 MIPS), not 64 MHz. Always validate the configuration bits against the new part's header file before production programming. Also confirm ICD/debugger tool chain support: MPLAB X IDE with PICkit 5 is recommended for K22 family.
معلومات الامتثال
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; for AEC-Q100 automotive-grade applications, choose PIC18F44K22-E/P (extended temp) or migrate to a Q-series AEC-Q100 part. Industrial temp grade (-40C to +85C) per -I/P suffix.
