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PIC16F18346 Product Overview
The PIC16F18346 is a full-featured low-pin-count 8-bit microcontroller with 28 KB program Flash, 2 KB SRAM, 256 bytes of data EEPROM and up to 18 I/O pins.
The device belongs to an XLP family designed for general-purpose and low-power applications. Its analog, configurable-logic, communication and waveform peripherals support compact products that need more memory than entry-level 20-pin MCUs.
Microchip identifies Functional Safety Support and automotive-oriented variants for the family. Those indicators must be matched to the exact orderable code and do not replace end-product qualification.
Technical source and publishing notes |
PIC16F18346 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 | Computation-assisted ADC and mixed-signal peripherals; verify exact channel count |
Digital peripherals | CLC, waveform/timing resources and Peripheral Pin Select |
Serial interfaces | EUSART plus SPI/I2C resources |
Power features | eXtreme Low-Power (XLP) family positioning |
Typical package class | 20-pin packages; verify suffix |
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
High memory density for a 20-pin device
28 KB Flash and 2 KB SRAM give designers more firmware room than many small 8-bit alternatives.
EEPROM and low-power positioning
On-chip data EEPROM and XLP features are attractive for settings, calibration data and battery-aware products.
Targeted safety and automotive messaging
Manufacturer support indicators make the device suitable for application-specific campaigns that require disciplined sourcing and documentation.
Typical Applications
Portable and battery-powered equipment
XLP features support duty-cycled measurement, user-interface and monitoring functions.
Smart sensors and calibration modules
EEPROM can store calibration or configuration values, while integrated analog and serial resources handle sensing and communications.
Compact industrial control
Useful for local control, alarms, small actuators and interface modules with limited board area.
Automotive auxiliary electronics
Potentially relevant where the correct automotive grade is selected and the system is fully qualified.
Design and Procurement Advantages
• 28 KB Flash and 2 KB SRAM in a 20-pin class.
• 256-byte data EEPROM supports configuration and calibration storage.
• XLP family positioning supports low-power product messaging.
• Functional Safety Support and automotive options add qualified-market relevance.
Package and Ordering-Code Guidance
The base name PIC16F18346 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 PIC16F18346 as In Production and as a Focus product on the review date. Package, temperature and automotive variants should be checked separately before committing stock.
Alternative and Migration Options
Migration note |
• PIC16F18326 when lower memory capacity meets the application.
• PIC16F18446 for a compact 20-pin device with 12-bit ADCC and strong current design-in positioning.
• PIC16F18146 for another 20-pin functional-safety-oriented control option.
• PIC16F17146 when an integrated op amp is required.
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
Why is PIC16F18346 useful in compact products?
It combines 28 KB Flash, 2 KB SRAM, EEPROM and a broad peripheral set in a 20-pin class.
Does PIC16F18346 support low-power applications?
Yes. It belongs to Microchip’s XLP family, but final current consumption depends on configuration, voltage, clock and peripherals.
Is PIC16F18346 in production?
Yes. Microchip displayed the device as In Production on 14 September 2026.
Can PIC16F18446 replace PIC16F18346 directly?
Do not assume a drop-in replacement. Compare pinout, ADC, peripherals, configuration and firmware in detail.
