PIC18LF45K22-I/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
Microchip PIC18LF45K22-I/ML is an 8-bit PIC18 microcontroller with 32 KB Flash, 1536 bytes RAM, and up to 64 MHz clock, operating from as low as 1.8 V with eXtreme Low Power (XLP) technology. Features integrated ADC, multiple communication peripherals, and a compact 44-pin QFN package for space-efficient designs. In stock worldwide for battery-powered and embedded control applications.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- PIC18LF45K22-I/ML Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.6900(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
- eXtreme Low Power (XLP) technology supports 1.8 V minimum supply at 20 MHz and sleep currents below 20 nA for long battery life
- 32 KB Flash and 1536 bytes RAM with up to 64 MHz clock frequency enable complex embedded firmware execution in an 8-bit architecture
- 44-pin QFN package (7x7 mm) integrates ADC, UART, SPI, I2C, and PWM peripherals for versatile embedded control in compact PCB layouts
Applications
The PIC18LF45K22-I/ML is well suited for battery-powered embedded control applications such as smart meters, home automation controllers, and portable medical devices where operation from 1.8 V to 3.6 V minimizes power consumption. Its 32 KB Flash and 64 MHz clock support moderately complex firmware with real-time control loops, multi-protocol communication stacks, and sensor fusion algorithms. The compact 44-pin QFN package fits within space-constrained PCB designs in IoT edge nodes, industrial sensor modules, and consumer electronics.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | QFN-44 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES 1.8 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 | 16 |
| 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) | 16384 |
| ROM Programmability | FLASH |
| Speed | 64MHz |
| Supply Current-Max | 12mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3V |
| 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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
At what minimum supply voltage can PIC18LF45K22-I/ML operate and what clock speed does it achieve at that voltage?
The PIC18LF45K22-I/ML can operate at a minimum supply voltage of 1.8 V while maintaining up to 20 MHz clock frequency. At higher supply voltages between 2.7 V and 3.6 V, it scales up to the full 64 MHz maximum clock rate, giving designers flexibility to trade speed for lower supply voltage and reduced power consumption in battery-operated systems.
How does PIC18LF45K22-I/ML compare to PIC18F45K22 for a 3.3 V IoT sensor node?
Both share the same 32 KB Flash, 1536 bytes RAM, and 44-pin QFN package, but the LF variant supports 1.8 V minimum supply and its XLP sleep modes can drop below 20 nA standby current. For a 3.3 V sensor node with duty-cycled wireless transmission, the LF model's lower sleep current extends battery life by 20–40% compared to the standard F version operating in deep sleep, making it the preferred choice for coin-cell or single-AA powered designs.
What communication peripherals are integrated in PIC18LF45K22-I/ML for sensor data acquisition?
The PIC18LF45K22-I/ML integrates multiple serial communication modules including 2 EUSART (UART), MSSP modules supporting SPI and I2C, and a 10-bit ADC with up to 13 input channels. This allows simultaneous connection to RS-232 host interfaces, SPI sensors, I2C EEPROMs, and analog transducers on a single chip, reducing external component count in sensor acquisition designs operating at up to 64 MHz.
Which embedded control applications are best served by the 44-pin QFN package of PIC18LF45K22-I/ML?
The 44-pin QFN (7x7 mm, 0.8 mm pitch) of PIC18LF45K22-I/ML provides 36 or more GPIO pins in a compact footprint ideal for motor control, HVAC controller boards, and industrial I/O expanders where pin count exceeds what 28-pin packages can offer but board area is still constrained. The exposed pad also improves thermal dissipation, supporting continuous operation across the full -40°C to +85°C industrial temperature range.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.5400 | $3.54 |
| 5+ | $3.4800 | $17.40 |
| 25+ | $3.2200 | $80.50 |
| 90+ | $3.1200 | $280.80 |
| 100+ | $2.9300 | $293.00 |
| 1000+ | $2.6900 | $2690.00 |
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