PIC18F14K50-I/MQ Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
PIC18F14K50-I/MQ is an 8-bit PIC18 microcontroller from Microchip with 16 KB Flash, USB 2.0 full-speed interface, 10-bit ADC, and a 20-pin QFN package operating down to 1.8 V at 20 MHz. It supports up to 48 MHz with its internal oscillator and includes 15 I/O pins for compact USB-connected embedded designs. Available from stock worldwide with competitive pricing and fast shipping options.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F14K50-I/MQ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.0900(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
- Integrated USB 2.0 full-speed interface eliminates external USB bridge ICs for direct PC connectivity
- 10-bit ADC with multiple channels enables precise sensor measurements at 1.8 V minimum supply
- 48 MHz maximum clock with 16 KB Flash supports complex USB HID and CDC firmware in a 20-pin QFN footprint
Applications
The PIC18F14K50-I/MQ targets USB-connected HID devices, CDC virtual COM ports, and low-speed USB data loggers where a compact 20-pin QFN eliminates the need for an external USB bridge chip. Its 1.8 V minimum operation and 10-bit ADC make it suitable for battery-powered USB accessories and wearable diagnostic equipment. The 16 KB Flash provides enough capacity for Microchip USB Framework firmware stacks, reducing development time for custom USB peripherals.
Specifications
| Manufacturer Package Code | QFN-20 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Has ADC | YES |
| Additional Feature | OPERATES AT 1.8 V MINIMUM SUPPLY AT 20 MHZ |
| Bit Size | 8 |
| Boundary Scan | YES |
| CPU Family | PIC |
| Clock Frequency-Max | 48MHz |
| DAC Channels | YES |
| DMA Channels | NO |
| JESD-30 Code | S-PQCC-N20 |
| JESD-609 Code | e3 |
| Number of I/O Lines | 17 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC20,.20SQ,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) | 768 |
| ROM (words) | 16384 |
| ROM Programmability | FLASH |
| Speed | 48MHz |
| Supply Current-Max | 15mA |
| Supply Voltage-Max | 5.5V |
| 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
What USB specification does PIC18F14K50-I/MQ support and what data rate does it achieve on a USB bus?
The PIC18F14K50-I/MQ integrates a USB 2.0 full-speed interface operating at 12 Mbps, with on-chip USB transceiver and 1 KB USB RAM for endpoint buffering. This eliminates the need for an external USB bridge IC such as an FT232 or CP2102, saving approximately 2 USD to 3 USD per unit in BOM cost on high-volume USB HID or CDC designs.
How does the 10-bit ADC on PIC18F14K50-I/MQ perform when operating at the 1.8 V minimum supply?
At 1.8 V supply, the 10-bit ADC on PIC18F14K50-I/MQ resolves signals to approximately 1.76 mV per LSB, suitable for reading resistive sensors, thermistors, and potentiometers. The ADC supports up to 8 input channels with an internal reference, making it practical for multi-axis joystick, battery-monitoring, or multi-sensor data-logger applications without external reference ICs.
For a USB HID game controller design, why choose PIC18F14K50-I/MQ over a lower-cost 8-bit MCU without USB?
Adding USB capability to a non-USB 8-bit MCU requires an external USB bridge costing 1.50 USD to 4 USD plus routing complexity for differential D+ and D- traces. The PIC18F14K50-I/MQ integrates USB 2.0 full-speed at 12 Mbps on-chip in a 20-pin QFN measuring 4 mm × 4 mm, consolidating the design into a single IC and reducing board area by 40% to 60% compared to a dual-chip solution.
What clock frequency options does PIC18F14K50-I/MQ support and how does the internal oscillator compare to an external crystal?
The PIC18F14K50-I/MQ supports an internal oscillator up to 48 MHz and can also use a 4 MHz to 20 MHz external crystal via FOSC. The internal oscillator at 48 MHz has a tolerance of ±1%, which is sufficient for USB full-speed operation since USB timing is managed by the hardware PLL. Eliminating the external crystal saves 0.10 USD to 0.30 USD per unit and frees 2 PCB pins for additional I/O.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.4917 | $2.49 |
| 100+ | $2.3900 | $239.00 |
| 1000+ | $2.1800 | $2180.00 |
| 5000+ | $2.0900 | $10450.00 |
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