PIC18F45J11-I/PT Microchip Integrated Circuit (Quad Flat Packages) In Stock
PIC18F45J11-I/PT is an 8-bit PIC18 microcontroller with 32 KB Flash, eXtreme Low Power (XLP) technology, and an onboard ADC running at up to 48 MHz. It operates in a 44-pin TQFP package and supports multiple communication peripherals for compact embedded designs. Available from Microchip with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F45J11-I/PT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9100(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 enables standby currents below 20 nA, making it ideal for coin-cell and energy-harvesting applications
- 8-bit PIC18 CPU at 48 MHz with 32 KB Flash provides a fast, code-dense platform for real-time control tasks
- Onboard ADC with multiple channels eliminates external analog-to-digital converters in sensor acquisition designs
- 44-pin TQFP package maximizes I/O pin density in space-constrained boards while maintaining industry-standard 0.8 mm pitch for reliable hand and reflow soldering
Applications
PIC18F45J11-I/PT is well suited for battery-operated consumer devices such as remote controls, wearable sensors, and portable medical monitors that demand ultra-low standby power below 20 nA between events. Its 48 MHz clock and onboard ADC support real-time control loops in HVAC controllers, smart-lighting dimmers, and home automation nodes where an 8-bit core with moderate code density is sufficient. The 44-pin TQFP footprint also fits industrial sensor transmitters and motor pre-drivers where pin count and PCB area must be minimized.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TQFP-44 |
| Factory Lead Time | 8Weeks |
| YTEOL | 8 |
| Has ADC | YES |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC18 |
| Clock Frequency-Max | 48MHz |
| DAC Channels | NO |
| 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 External Interrupts | 4 |
| Number of I/O Lines | 38 |
| Number of Serial I/Os | 1 |
| Number of Timers | 5 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 16 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TQFP44,.39SQ,31 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 3776 |
| ROM (words) | 16384 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 48MHz |
| Supply Current-Max | 24.1mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 2.15V |
| 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 |
| 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 1 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Philippines, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the XLP technology in PIC18F45J11-I/PT extend battery life in a coin-cell powered remote control?
PIC18F45J11-I/PT's eXtreme Low Power technology achieves Sleep mode currents as low as 20 nA, allowing a 225 mAh CR2032 coin cell to power the MCU through years of standby waiting for a key press. Even at 48 MHz active mode the core draws only a few milliamps, so a 1% duty cycle of button-scan wakeups keeps average current well below 100 µA, translating to over 2 years of operation on a single battery.
For an HVAC controller requiring multiple analog sensor inputs, how does PIC18F45J11-I/PT reduce external component count?
The onboard multi-channel ADC accepts temperature, humidity, and pressure sensor outputs directly, eliminating the need for a discrete ADC IC such as an MCP3204. With 44 I/O pins in the TQFP-44 package, designers can connect up to 8 or more analog channels alongside I2C, SPI, and UART peripherals on the same device, cutting the HVAC controller BOM by 2 to 3 components and reducing PCB area by roughly 20%.
When would PIC18F45J11-I/PT be a better fit than a PIC16 device for a mid-complexity embedded application?
PIC18F45J11-I/PT is preferred when the application requires more than 14 KB of program memory or needs 48 MHz clock speed for real-time PWM or communication tasks that a PIC16 at 32 MHz struggles with. The PIC18 instruction set is more efficient for C-compiled code, reducing compiled code size by up to 30% compared to equivalent PIC16 programs, which directly lowers Flash usage and allows more features to fit within the 32 KB budget of this device.
What communication peripherals are available on PIC18F45J11-I/PT for connecting to sensors and host systems?
PIC18F45J11-I/PT includes UART, SPI master/slave, and I2C interfaces, enabling connection to RS-232/RS-485 transceivers, SPI-connected displays or memory chips, and I2C sensors such as temperature or pressure modules — all simultaneously on a single 44-pin TQFP device running at 48 MHz. This multi-peripheral capability lets a single MCU manage a sensor hub with 3 to 4 different bus protocols without external I/O expanders, simplifying firmware architecture in embedded designs.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.9100 | $0.91 |
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