PIC18LF45K22-I/PT Microchip Integrated Circuit (Quad Flat Packages) In Stock
Microchip PIC18LF45K22-I/PT is an 8-bit microcontroller with 32 KB Flash, 1536 B RAM, and XLP low-power technology in a 44-pin TQFP package running up to 64 MHz. It supports 1.8 V minimum supply voltage and offers dual ADC modules with up to 24 channels for versatile analog measurement.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- PIC18LF45K22-I/PT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.4500(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PIC18LF45K22-I/PT?
- 8-bit PIC18 core running at up to 64 MHz for responsive embedded control
- 32 KB Flash program memory with self-write capability for in-field updates
- 1536 bytes of on-chip SRAM supporting data-intensive sensor applications
- XLP ultra-low-power technology with sub-100 nA sleep current
- Operates down to 1.8 V supply at 20 MHz enabling battery-powered designs
- Dual 10-bit ADC modules with up to 24 analog input channels
- Multiple serial interfaces: two I2C, two SPI, two UART for multi-bus connectivity
What is PIC18LF45K22-I/PT used for?
The PIC18LF45K22-I/PT suits portable battery-powered devices such as wireless sensors, handheld meters, and wearable electronics where the 1.8 V operation and sub-microamp sleep current extend runtime significantly. Its 44-pin TQFP footprint and dual ADC modules make it a strong fit for industrial data acquisition front-ends that sample multiple analog channels simultaneously. The combination of 32 KB Flash and rich peripheral set also supports home automation nodes, HVAC controllers, and compact embedded control units.
What are the specifications of PIC18LF45K22-I/PT?
| Pbfree Code | Yes |
| Manufacturer Package Code | TQFP-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-PQFP-G44 |
| 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 | TQFP44,.47SQ,32 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, 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 | GULL WING |
| Terminal Pitch | 0.8mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Philippines, Thailand |
Where can I find the PIC18LF45K22-I/PT datasheet?
PIC18LF45K22-I/PT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC18LF45K22-I/PT?
Compatible alternatives and drop-in replacements for PIC18LF45K22-I/PT:
Microchip Technology Inc 64KB, Flash, 3968bytes-RAM,8-bit Family,nanoWatt XLP
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 64MHz, CMOS, PQFP44
64KB Flash, 4KB RAM, 1KB EE, 10b ADC2, DAC, COMP, PWM, CWG, HLT, WWDT, CRC/Scan,
Frequently Asked Questions
What is the minimum supply voltage for PIC18LF45K22-I/PT and which battery chemistries does it support?
The PIC18LF45K22-I/PT operates from a minimum of 1.8 V at up to 20 MHz clock frequency, making it directly compatible with single-cell lithium-ion batteries near end-of-discharge and two-cell alkaline or NiMH packs. At the full 64 MHz clock rate the device requires at least 3.0 V, covering most 3 V coin-cell and 3.3 V regulated supply designs.
How many analog input channels are available on PIC18LF45K22-I/PT for multi-sensor data acquisition?
The PIC18LF45K22-I/PT provides up to 24 analog input channels connected to its dual 10-bit ADC modules. Each ADC can operate independently, enabling simultaneous measurement of different sensor types—such as temperature via NTC thermistor and pressure via resistive bridge—within a single 44-pin device without external multiplexer ICs.
How does PIC18LF45K22-I/PT compare to PIC18F45K22 for energy-constrained designs?
The PIC18LF45K22-I/PT is the low-voltage XLP variant of PIC18F45K22, rated down to 1.8 V versus 2.3 V for the standard version, and features sub-100 nA deep sleep current compared to the higher sleep current of the non-XLP version. For a coin-cell or energy-harvesting design where the device sleeps for 99% of its lifetime, the XLP variant can extend battery life by months compared to the standard-voltage device at the same duty cycle.
What serial communication peripherals are integrated in PIC18LF45K22-I/PT for multi-bus embedded systems?
The device integrates two independent MSSP modules (each configurable as SPI or I2C master/slave), two EUSART modules for RS-232 or RS-485 communication, and a comparator with optional DAC reference. This allows a 44-pin design to simultaneously drive an I2C sensor network, a SPI display, and a UART debug port at 3.3 V without adding external interface ICs.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
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| 1+ | $2.9660 | $2.97 |
| 100+ | $2.8000 | $280.00 |
| 1000+ | $2.5800 | $2580.00 |
| 5000+ | $2.4500 | $12250.00 |
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