PIC18F44K22-I/MV - 16KB Flash 8-bit MCU | Microchip
MPN： PIC18F44K22-I/MV ✓ 啟用中PIC18F44K22-I/MV 概覽
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for deterministic real-time control with modest memory and pin counts. PIC18F-series parts sit at the upper end of Microchip's 8-bit portfolio, combining C-friendly Harvard architecture, hardware multiplier, and rich peripheral integration. Within the broader taxonomy, the PIC18F44K22 belongs to the microcontroller category of integrated circuits, serving embedded control applications ranging from consumer appliances to industrial sensor hubs.
Key features include a wide 2.3V to 5.5V supply range (functional down to 1.8V with internal regulator), an integrated 16 MHz to 64 MHz HFINTOSC with PLL, 36 digital I/O pins, and ultra-low-power sleep currents in the nanoampere range. The K22 series adds CTMU charge-time measurement, multiple PWM channels, and enhanced capture/compare peripherals for motor and lighting control.
Architecturally, the device combines a RISC core with a hardware 8x8 multiplier, enabling efficient C code execution, and provides 256-byte data EEPROM for non-volatile parameter storage. The 32-level hardware stack and 31 interrupt sources make it well-suited to multi-tasking control loops. On-chip debugging is supported via two dedicated ICSP pins, allowing MPLAB X IDE integration without additional emulator hardware.
Typical applications include low-power sensor nodes, IoT edge devices, white-goods motor control, LED lighting controllers, and industrial instrumentation requiring extended battery life. The compact UQFN-40 footprint also supports space-constrained wearables and handheld products.
When designing with this part, select decoupling capacitors close to VDD/AVDD pins and route the 48 MHz HFINTOSC trace away from analog ADC inputs to minimize coupling. Use the internal regulator mode to reduce external components, and verify the UQFN thermal pad is soldered to a sufficient copper pour for reliable operation at high toggle rates.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, giving procurement and design engineers a single reference for evaluating the PIC18F44K22-I/MV against direct substitutes in the PIC18F family.
直接替換替代品，適用於 PIC18F44K22-I/MV — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC18F44K22-I/MV （相同外形與佔位） — 差異在於 Package, ADC, Core, Program Memory (Flash), Timers.
PIC18F43K22-I/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC18F44K22T-I/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC18F44K22-E/MV
✅ 直接替換📋 參考替代品（不在目錄中）
PIC18F44K20-I/MV
✅ 直接替換📋 參考替代品（不在目錄中）
PIC18F44K22-I/P
✅ 直接替換聯絡詢價
查看資料表 →PIC18F44K22-I/MV 最大額定值與電氣特性
| Core | PIC18 8-bit RISC |
| Program Memory (Flash) | 16 KB (8K x 16) |
| RAM | 768 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 64 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V (1.8 V with internal regulator) |
| I/O Pins | 36 |
| ADC | 10-bit, up to 28 channels |
| Timers | 4x 8/16-bit |
| Communication | 2x EUSART, 2x MSSP (SPI/I2C) |
| PWM Channels | Up to 5 |
| Comparators | 2 |
| 封裝 | 40-pin UQFN (5x5 mm) |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40C to +85C (Industrial) |
| RoHS 狀態 | Compliant |
PIC18F44K22-I/MV 腳位配置
| 腳位 1 | RA2 — PORTA bit 2 (analog/digital I/O) |
| 腳位 2 | RA3 — PORTA bit 3 (analog/digital I/O) |
| 腳位 3 | RA4 — PORTA bit 4 (analog/digital I/O) |
| 腳位 4 | RA5 — PORTA bit 5 (analog/digital I/O) |
| 腳位 5 | RA6 — PORTA bit 6 (OSC2/CLKOUT) |
| 腳位 6 | RA7 — PORTA bit 7 (OSC1/CLKIN) |
| 腳位 7 | VDD — Positive supply voltage |
| 腳位 8 | VSS — Ground reference |
| 腳位 9 | RB0 — PORTB bit 0 (interrupt-on-change) |
| 腳位 10 | RB1 — PORTB bit 1 (interrupt-on-change) |
| 腳位 11 | RB2 — PORTB bit 2 (interrupt-on-change) |
| 腳位 12 | RB3 — PORTB bit 3 (interrupt-on-change) |
| 腳位 13 | RB4 — PORTB bit 4 (interrupt-on-change) |
| 腳位 14 | RB5 — PORTB bit 5 (interrupt-on-change) |
| 腳位 15 | RB6 — PORTB bit 6 (ICSP programming clock) |
| 腳位 16 | RB7 — PORTB bit 7 (ICSP programming data) |
| 腳位 17 | RC0 — PORTC bit 0 |
| 腳位 18 | RC1 — PORTC bit 1 |
| 腳位 19 | RC2 — PORTC bit 2 |
| 腳位 20 | RC3 — PORTC bit 3 |
| 腳位 21 | RC4 — PORTC bit 4 |
| 腳位 22 | RC5 — PORTC bit 5 |
| 腳位 23 | RC6 — PORTC bit 6 (TX) |
| 腳位 24 | RC7 — PORTC bit 7 (RX) |
| 腳位 25 | RE3 — PORTE bit 3 (MCLR/VPP) |
| 腳位 26 | RD0 — PORTD bit 0 |
| 腳位 27 | RD1 — PORTD bit 1 |
| 腳位 28 | RD2 — PORTD bit 2 |
| 腳位 29 | RD3 — PORTD bit 3 |
| 腳位 30 | RD4 — PORTD bit 4 |
| 腳位 31 | RD5 — PORTD bit 5 |
| 腳位 32 | RD6 — PORTD bit 6 |
| 腳位 33 | RD7 — PORTD bit 7 |
| 腳位 34 | AVDD — Analog positive supply |
| 腳位 35 | AVSS — Analog ground |
| 腳位 36 | RE0 — PORTE bit 0 |
| 腳位 37 | RE1 — PORTE bit 1 |
| 腳位 38 | RE2 — PORTE bit 2 |
| 腳位 39 | VDD — Positive supply voltage (second) |
| 腳位 40 | VSS — Ground reference (second) |
典型應用
PIC18F44K22-I/MV 適用於 6 應用s: Battery-Powered IoT Sensor Nodes, White-Goods Motor and Appliance Control, LED Lighting Controllers and Dimmers, Industrial Sensor Hubs and Data Loggers, Handheld Consumer Electronics, Automotive Body and Comfort Electronics (non-safety).
Battery-Powered IoT Sensor Nodes
The PIC18F44K22-I/MV is well matched to coin-cell sensor nodes thanks to nanoWatt XLP technology with sub-100 nA sleep retention and roughly 1 uA/MIPS active current. The integrated 16 KB Flash accommodates BLE/Zigbee stack fragments or LoRaWAN drivers, while the 10-bit ADC up to 28 channels reads multiple sensors without external multiplexing. Placed at the heart of a wireless sensor hub, it runs years on a CR2032 cell. Unlike Cortex-M0+ parts, the 8-bit PIC18 delivers deterministic interrupt latency critical for low-power protocols.
推薦
White-Goods Motor and Appliance Control
The PIC18F44K22-I/MV's 5 PWM channels, 2 comparators, and 36 GPIO make it a strong fit for washing-machine motor drives, dishwasher pumps, and refrigerator compressors. The CTMU peripheral supports cap-touch user interfaces for front-panel controls. At 64 MHz, the C-friendly core executes speed-control loops with deterministic cycle time. Compared with discrete 8051 designs, the K22 integrates peripherals and Flash, reducing BOM cost in appliance-grade white goods.
推薦
LED Lighting Controllers and Dimmers
Lighting control demands smooth PWM dimming without flicker, and the PIC18F44K22-I/MV delivers with 5 hardware PWM outputs and configurable dead-band control. The 64 MHz core supports DALI, DMX512, or 0-10 V dimming protocols via the EUSART or MSSP. With 2.3-5.5 V operation, the part can run directly from rectified 5 V or 3.3 V rails. The compact UQFN-40 footprint supports ultra-slim fixture housings. Replacement of legacy 16F-series parts benefits from doubled Flash and nanoWatt sleep.
推薦
Industrial Sensor Hubs and Data Loggers
Industrial data loggers benefit from the PIC18F44K22-I/MV's 10-bit ADC with up to 28 channels, 256-byte EEPROM for non-volatile parameter storage, and industrial -40C to +85C rating. The dual EUSART supports RS-485 or RS-232 host links, while MSSP peripherals drive SPI/I2C sensors. With 16 KB Flash, complex Modbus or proprietary protocol stacks fit on-chip. Compared with smaller PIC16F parts, the K22 adds hardware multiplier and DMA-like peripheral management.
推薦
Handheld Consumer Electronics
The PIC18F44K22-I/MV's compact 5x5 mm UQFN footprint and low active power suit battery-powered toys, remote controls, and personal-care devices. With internal 64 MHz HFINTOSC, no external crystal is required, saving both PCB space and BOM cost. The 36 GPIO easily drives segment LCDs, keypads, and BLE/wireless companion modules via UART. Unlike larger 44-pin TQFP parts, the UQFN-40 enables handheld form factors where every mm counts.
推薦
Automotive Body and Comfort Electronics (non-safety)
For non-safety automotive body modules such as seat controllers, mirror adjusters, or interior lighting, the PIC18F44K22-I/MV's automotive-grade sibling PIC18F44K22T-I/MV is recommended. The same PIC18 core, peripherals, and UQFN-40 footprint simplify migration from industrial to AEC-Q100 qualified parts. With LIN-capable EUSART, the device interfaces to body controllers via the LIN bus. Compared with full automotive MCUs, the K22 offers a cost-effective path for non-safety nodes.
推薦
推薦產品摘要
工程參考資料，適用於 PIC18F44K22-I/MV — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC18F43K22-I/MV | PIC18F44K22T-I/MV | PIC18F44K22-E/MV | PIC18F44K20-I/MV | PIC18F44K22-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin UQFN (5x5) | 40-pin UQFN (5x5) - same | 40-pin UQFN (5x5) - same | 40-pin UQFN (5x5) - same | 40-pin UQFN (5x5) - same | 40-pin PDIP (cross-package) |
| Program Memory (Flash) | 16 KB | 8 KB (-50%) | 16 KB (same) | 16 KB (same) | 8 KB (-50%) | 16 KB (same) |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| RAM | 768 B | 768 B | 768 B | 768 B | 768 B | 768 B |
| Operating Voltage Range | 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 | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +85C |
| I/O Pins | 36 | 36 | 36 | 36 | 36 | 36 |
主要差異化特點
- Larger Flash than lower-tier same-package siblings (對比PIC18F43K22-I/MV)
- Pin-compatible 8 KB migration path available (對比PIC18F44K20-I/MV)
- Extended-temperature variant available in same package (對比PIC18F44K22-E/MV)
設計說明
Estimated: at 5 V VDD and 64 MHz active, the PIC18F44K22-I/MV draws roughly 8-10 mA. In sleep mode with peripherals disabled, current drops below 100 nA thanks to nanoWatt XLP. Use a 100 nF decoupling capacitor as close as possible to each VDD/VSS pair, plus a bulk 10 uF on the main rail. Enable the internal regulator mode when running below 3 V to maintain full 64 MHz operation. Disable unused peripherals in firmware to minimize active current.
The 40-pin UQFN (5x5) package has a central exposed thermal pad that MUST be soldered to a ground-plane copper pour of at least 25 mm^2. Use an array of thermal vias (typically 9-12 vias at 0.3 mm drill) under the pad to connect top and bottom ground layers. Keep high-speed traces (clock, ICSPDAT/ICSPCLK) at least 5 mm away from analog ADC inputs to prevent coupling. Route AVDD/AVSS as a Kelvin pair with a ferrite bead to suppress digital switching noise on the analog reference.
Do not exceed 64 MHz across the full -40C to +85C range without proper decoupling - 64 MHz operation requires the HFINTOSC + PLL path with stable VDD. The MCLR pin is bidirectional on this family and must be pulled high through a 10 kohm resistor; floating MCLR prevents normal startup. When using ICSP, isolate the ICSPCLK/ICSPDAT lines from capacitive loads exceeding 30 pF to avoid programming failures. Always issue a BOR (Brown-Out Reset) configuration fuse for battery applications.
合規資訊
RoHS and lead-free per Microchip product page. Not AEC-Q100 qualified - choose PIC18F45K22-I/PT automotive grade variants if AEC-Q100 is required.
