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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.9660 | $2.97 |
| 100+ | $2.8000 | $280.00 |
| 1000+ | $2.5800 | $2580.00 |
| 5000+ | $2.4500 | $12250.00 |
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