PIC18F45K22-I/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
The PIC18F45K22-I/ML is an 8-bit PIC18 microcontroller with 32 KB Flash, 1536 B RAM, and up to 64 MHz clock in a QFN-44 package. It features XLP low-power technology, integrated ADC, and can operate down to 2.3 V at 20 MHz for battery-powered applications.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F45K22-I/ML Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1880(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit PIC18 core running up to 64 MHz for responsive embedded control
- 32 KB Flash program memory and 1536 B SRAM for compact firmware
- XLP (eXtreme Low Power) technology for ultra-low sleep and run currents
- Operates down to 2.3 V supply at 20 MHz for battery-powered designs
- Integrated 10-bit ADC with multiple input channels
- QFN-44 package for space-constrained PCB designs
Applications
The PIC18F45K22-I/ML is well suited for battery-operated consumer devices, smart home sensors, and portable industrial instruments where ultra-low power consumption and 8-bit processing efficiency are priorities. Its XLP technology allows designs to achieve microamp-level sleep currents, extending battery life in IoT nodes and remote monitoring applications. The integrated ADC and broad peripheral set also make it effective for HVAC controls, motor drivers, and energy metering designs.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | QFN-44 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES 2.3 V MINIMUM SUPPLY AT 20 MHZ |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC18 |
| Clock Frequency-Max | 64MHz |
| DAC Channels | YES |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQCC-N44 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of DMA Channels | 3 |
| Number of I/O Lines | 36 |
| Number of Timers | 7 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC44,.32SQ,25 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 1536 |
| RAM (words) | 1536 |
| ROM (words) | 32768 |
| ROM Programmability | FLASH |
| Speed | 64MHz |
| Supply Current-Max | 12mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC18F45K22-I/ML:
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 48MHz, CMOS, PQCC44
Frequently Asked Questions
How low can the PIC18F45K22-I/ML supply voltage go, and what clock rate is achievable at minimum voltage?
The PIC18F45K22-I/ML can operate from a supply voltage as low as 2.3 V while running at up to 20 MHz. At the full 5 V supply, the clock can reach 64 MHz. This flexibility makes it practical for designs that transition between battery-backed low-voltage standby and mains-powered full-speed operation.
What does XLP technology in PIC18F45K22-I/ML mean for IoT battery life estimates?
XLP (eXtreme Low Power) technology in the PIC18F45K22-I/ML delivers very low sleep-mode current, which can be under 100 nA in deep sleep, and reduced run current at low clock frequencies. For an IoT sensor that wakes once per minute to take a reading, this translates to coin-cell battery life measured in years rather than months.
How does the QFN-44 package of PIC18F45K22-I/ML compare to a DIP package for a small wearable design?
The QFN-44 package of PIC18F45K22-I/ML measures approximately 8 x 8 mm, offering 44 pins in a surface-mount footprint far smaller than a 40-pin DIP. For compact wearable or portable designs, the QFN eliminates through-hole drilling and allows routing on both PCB sides, directly reducing board area by a factor of 3 or more compared to DIP alternatives.
What memory capacity does PIC18F45K22-I/ML offer, and is it sufficient for wireless stack firmware?
PIC18F45K22-I/ML provides 32 KB of Flash program memory and 1536 bytes of SRAM. Simple wireless protocol layers such as a lightweight Bluetooth Low Energy or ZigBee stack can fit within 32 KB Flash, though designs requiring large lookup tables or multi-protocol stacks should evaluate higher-density PIC18 variants with 64 KB or more Flash.
Related Guides
150141RS73100 Red LED Indicator and Current-Resistor Design Guide
Design a reliable 150141RS73100 red LED indicator with worst-case resistor sizing, GPIO checks, PWM drive, layout, and production validation.
Jul 11, 2026
742792651 Ferrite Bead EMI Filter and Power Integrity Design Guide
Practical guidance for using 742792651 in ferrite-bead EMI filters, including bias, DCR, damping, layout, and validation.
Jul 11, 2026
How to Choose a Ferrite Bead for EMI Suppression Rails: Selection Guide
Compare 742792651 and related ferrite beads by impedance, current rating, DCR, package, layout, and EMI test context.
Jul 10, 2026
150141BS73100 Design Guide for 3528 Status Indicator LED Circuits
Design 3528 status indicator LED circuits with 150141BS73100: current setting, resistor sizing, polarity, optics, and sourcing checks.
Jul 10, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.1880 | $1.19 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”