PIC16LF18446-I/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
Microchip PIC16LF18446-I/P is an 8-bit PIC MCU with 28 KB flash, 2 KB RAM, 32 MHz clock, 12-bit ADCC, dual PWMs, DAC, CWG, EUSART, and SPI/I2C in a 20-pin DIP package. Operates from 1.8 V at 16 MHz for ultra-low-power designs. Available worldwide for fast delivery.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- PIC16LF18446-I/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.6800(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
- 12-bit ADCC (ADC with computation) enabling hardware averaging and threshold comparison without CPU overhead
- Ultra-low-voltage operation from 1.8 V at 16 MHz, ideal for coin-cell and energy-harvesting applications
- Integrated CWG (Complementary Waveform Generator) and dual PWMs for direct motor and power-converter control
Applications
The PIC16LF18446-I/P is designed for low-power embedded control applications including smart home sensors, battery-powered IoT nodes, and motor speed controllers. Its 12-bit ADCC with hardware computation reduces software overhead in analog signal acquisition tasks such as temperature sensing, current monitoring, and capacitive touch interfaces. The 20-pin DIP format is ideal for prototyping, educational projects, and through-hole industrial control boards.
Specifications
| Manufacturer Package Code | PDIP-20 |
| Factory Lead Time | 5Weeks |
| Date Of Intro | 2017-12-21 |
| YTEOL | 19 |
| Has ADC | YES |
| Additional Feature | IT ALSO OPERATES AT 1.8V MIN AT 16 MHZ |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC16 |
| Clock Frequency-Max | 32MHz |
| DAC Channels | YES |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | R-PDIP-T20 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 1 |
| Number of I/O Lines | 18 |
| Number of Serial I/Os | 1 |
| Number of Timers | 9 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 14 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Peak Reflow Temperature (Cel) | 260 |
| RAM (bytes) | 2048 |
| ROM (words) | 16384 |
| ROM Programmability | FLASH |
| Speed | 32MHz |
| Supply Current-Max | 4.8mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 2.5V |
| Supply Voltage-Nom | 3V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 3A991.a.2 |
| HTS Code | 8542.31.00.15 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16LF18446-I/P:
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 32MHz, CMOS, PDIP20
Frequently Asked Questions
What is the maximum clock speed of the PIC16LF18446-I/P, and how low can the operating voltage go?
The PIC16LF18446-I/P runs up to 32 MHz maximum clock frequency. It also supports 1.8 V minimum supply operation at 16 MHz, enabling coin-cell or energy-harvesting designs where supply voltage is limited. Full 32 MHz operation requires higher supply voltage typical of 2.3 V to 5.5 V systems.
How does the 12-bit ADCC in the PIC16LF18446-I/P differ from a standard ADC, and what benefit does it provide?
The ADCC (ADC with Computation) includes a hardware accumulator, averaging, and threshold comparison engine integrated alongside the 12-bit converter. This offloads repetitive averaging and limit-checking tasks from the CPU core, reducing interrupt latency and allowing the microcontroller to stay in sleep mode longer, cutting average current consumption in sensor polling applications.
Which communication peripherals are built into the PIC16LF18446-I/P for connecting to sensors and displays?
The device integrates EUSART (enhanced UART), SPI, and I2C serial interfaces. This combination covers the vast majority of sensor, display, and memory devices: EUSART handles RS-232 and RS-485 links, SPI connects high-speed ADCs and flash memories, and I2C supports multi-device buses with up to 127 addressable peripherals on 2 wires.
For a compact motor-drive design, what advantages does the PIC16LF18446-I/P's CWG peripheral provide over software PWM generation?
The Complementary Waveform Generator (CWG) produces complementary PWM outputs with programmable dead-band timing without CPU intervention, preventing shoot-through in half-bridge and H-bridge motor drivers. Hardware-generated dead-band can be as fine as nanosecond resolution, far more precise than software-toggled GPIO, and the dual PWM modules add up to 4 independent drive channels for multi-phase control.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.2800 | $2.28 |
| 5+ | $2.2000 | $11.00 |
| 22+ | $2.0800 | $45.76 |
| 100+ | $1.9200 | $192.00 |
| 1000+ | $1.7600 | $1760.00 |
| 5000+ | $1.6800 | $8400.00 |
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