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PIC16F18446 Product Overview
PIC16F18446 Product OverviewThe PIC16F18446 is a full-featured 20-pin 8-bit microcontroller with 28 KB program Flash, 2 KB SRAM, data EEPROM and a rich set of analog and digital peripherals.
Its 12-bit ADC with Computation, comparator, DAC, PWM/control resources, CLC, NCO, CWG and serial interfaces support compact mixed-signal control designs. Connectivity options include EUSART and SPI/I2C, with LIN-compatible use cases identified in available ordering information.
Microchip identifies Focus, Functional Safety Support and automotive-oriented positioning for the device family. Buyers must still verify the exact grade and orderable suffix required by the project.
Technical source and publishing notes |
PIC16F18446 Key Specifications
Parameter | PIC16F Device Summary |
Architecture | 8-bit enhanced mid-range PIC MCU |
Maximum CPU speed | Up to 32 MHz |
Program Flash | 28 KB |
Data SRAM | 2,048 bytes |
Data EEPROM | 256 bytes |
I/O capability | Up to 18 general-purpose I/O pins |
Analog | 12-bit ADCC, comparator and DAC resources |
Control peripherals | PWM/CCP, CLC, NCO, CWG and timers |
Serial interfaces | EUSART, SPI and I2C; LIN-compatible applications |
Typical package class | 20-pin PDIP and surface-mount options; verify suffix |
Manufacturer positioning | Focus product with Functional Safety Support and automotive options |
Official status | In Production as checked on the Microchip product page |
Specifications can vary by package, device revision and full ordering code. Engineers should validate pinout, electrical limits, programming requirements and errata against the latest Microchip documentation before releasing a design.
Why This Device Attracts Buyer and Engineer Interest
Rich peripherals in a compact footprint
The combination of 28 KB Flash, 12-bit ADCC and multiple control peripherals is commercially attractive for space-constrained boards.
Broad package and prototyping utility
Through-hole and surface-mount options can support development, low-volume industrial builds and production designs, subject to availability.
Safety and automotive content potential
Manufacturer support indicators allow targeted content for documented design processes without implying end-system certification.
Typical Applications
Compact industrial controllers
Supports sensing, local decisions, communication and actuator control on a small board.
Automotive auxiliary modules
Potentially suitable for LIN-linked or local body/sensor functions when the correct automotive grade is selected and qualified.
Smart sensors and instrumentation
The 12-bit ADCC can perform acquisition and post-processing for measurement-oriented products.
Power, lighting and appliance control
PWM, NCO, CWG and CLC resources support waveform and event-handling functions.
Design and Procurement Advantages
• 28 KB Flash and 2 KB SRAM provide useful code and data headroom.
• 12-bit ADCC improves measurement-oriented positioning.
• 20-pin packages suit compact products and established prototyping workflows.
• Focus, Functional Safety Support and automotive options strengthen design-in relevance.
Package and Ordering-Code Guidance
The base name PIC16F18446 is not a complete purchasing code. Package, temperature grade, qualification level and packing method can change the orderable suffix and commercial availability.
1. Quote the complete manufacturer orderable part number, not only the base device name.
2. Confirm package, temperature grade, packing method and required compliance documentation.
3. For migration projects, verify pin functions, configuration bits, voltage behavior, peripherals and firmware changes.
4. Agree acceptable lot/date-code range and traceability requirements before order confirmation.
Lifecycle and Market Position
Microchip displayed PIC16F18446 as In Production and as a Focus product on the review date. Exact package, temperature and automotive suffixes must be confirmed before the device is advertised as available.
Alternative and Migration Options
Migration note |
• PIC16F18426 for a smaller related member when fewer resources are sufficient.
• PIC16F18456 when a 28-pin related device is required.
• PIC16F17146 when an integrated op amp is central to the analog front end.
• PIC16F18146 for another compact functional-safety-oriented control option.
Alternative devices are comparison starting points only. They are not automatically pin-compatible or firmware-compatible. The final choice must be validated against electrical, mechanical, software, safety and regulatory requirements.
Sourcing and Quality Checklist
• Confirm manufacturer, complete ordering code, requested quantity and annual usage.
• Review current product status, PCNs, errata and customer-specific qualification requirements.
• Specify package condition, moisture-sensitivity handling, packing and labeling requirements.
• Request lot/date-code information and traceability documentation appropriate to the transaction.
• Use incoming inspection, programming verification or functional testing proportionate to application risk.
• Avoid approving substitutes solely on price; conduct engineering and quality review first.
Frequently Asked Questions
What is the main advantage of PIC16F18446?
It combines a 20-pin footprint with 28 KB Flash, 2 KB SRAM, 12-bit ADCC and a broad set of control and communication peripherals.
Can PIC16F18446 be used in LIN applications?
The device supports EUSART-based communication and LIN-compatible use cases, but the full transceiver and system requirements must be engineered separately.
Is PIC16F18446 in production?
Yes. Microchip displayed the base device as In Production on 14 September 2026.
Does Functional Safety Support mean the MCU is automatically certified?
No. It provides manufacturer support resources; system architecture, validation and certification remain project responsibilities.
