PIC16F18055-I/STX Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
The PIC16F18055-I/STX is an 8-bit PIC microcontroller with 14 KB Flash, 1 KB RAM, 10-bit ADCC, 8-bit DAC, 32 MHz clock, and a 28-pin VQFN package for cost-sensitive embedded control and sensor applications.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC16F18055-I/STX Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5600(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
- 32 MHz 8-bit PIC16 core with 14 KB Flash and 1 KB RAM covering a wide range of embedded control tasks
- 10-bit ADCC with hardware computation including averaging and threshold comparison for autonomous analog monitoring
- 8-bit DAC output enabling analog signal generation for reference voltages and waveform synthesis without external DAC ICs
- Core-Independent Peripherals (CIPs) allow hardware-timed I/O events without CPU intervention, reducing software latency
- 28-pin VQFN package supporting 1.8 V operation at 16 MHz for ultra-low-power battery applications
Applications
The PIC16F18055-I/STX is ideal for home appliance controllers, HVAC sensors, and smart lighting dimmers where an 8-bit core with integrated ADC and DAC eliminates external analog ICs. Its Core-Independent Peripherals enable hardware-driven PWM and logic events independent of software execution, making it well suited for real-time motor commutation and capacitive touch sensing. Low-power IoT edge nodes and battery-powered wireless sensor motes also benefit from its ability to run at 16 MHz on a 1.8 V supply while maintaining full peripheral functionality.
Specifications
| Manufacturer Package Code | VQFN-28 |
| Factory Lead Time | 7Weeks |
| YTEOL | 23 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES AT 16MHZ WITH SUPPLY OF 1.8 V |
| 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 | S-PQCC-N28 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 1 |
| Number of I/O Lines | 25 |
| Number of Serial I/Os | 2 |
| Number of Timers | 7 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC28,.16SQ,16 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| RAM (bytes) | 1024 |
| ROM (words) | 14336 |
| ROM Programmability | FLASH |
| Speed | 32MHz |
| Supply Current-Max | 4.3mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.4mm |
| Terminal Position | QUAD |
| 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 | 8542.31.00.15 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16F18055-I/STX:
56KB Flash, 4KB RAM, 256B EE, ADCC, Analog, PWM, CWG, SMT, HLT, WWDT, SCAN/CRC
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 32MHz, CMOS, PQCC28
Frequently Asked Questions
What makes the 10-bit ADCC in the PIC16F18055-I/STX different from a standard ADC in simpler 8-bit MCUs?
The ADCC in the PIC16F18055-I/STX adds hardware-based computation including oversampling, averaging, and threshold-comparison, allowing autonomous analog monitoring without CPU wakeup. For example, it can accumulate 16 samples and interrupt only when the averaged result crosses a programmable threshold, reducing active duty cycle in battery-powered sensor nodes operating at 3.3 V by over 50% compared to polling-based designs.
How does the PIC16F18055-I/STX achieve low-power operation for battery-powered applications?
The device operates at 1.8 V supply with a 16 MHz clock, and its Core-Independent Peripherals continue running while the CPU is in sleep mode. Typical sleep current is below 1 µA, and wake-on-ADCC-threshold or UART event can resume full 32 MHz operation in under 1 µs, making it practical for coin-cell or AA-battery sensor nodes with multi-year operational lifetimes.
Which communication interfaces does the PIC16F18055-I/STX support, and do they cover common I2C sensor protocols?
The PIC16F18055-I/STX includes MSSP-based I2C (up to 400 kHz Fast Mode) and SPI interfaces, plus a UART for RS-232 or RS-485 links. These cover the vast majority of sensor ICs—temperature sensors, humidity sensors, accelerometers—that use I2C at 100 kHz or 400 kHz, and the UART supports Modbus RTU at baud rates from 1200 baud to 115,200 baud for industrial field devices.
For a 28-pin count, how does the PIC16F18055-I/STX VQFN footprint compare to a DIP-28 alternative in terms of PCB space?
The 28-pin VQFN package measures approximately 4 mm × 4 mm, occupying roughly 16 mm² of PCB area. A standard DIP-28 package measures 35.6 mm × 13.5 mm, consuming about 480 mm². The VQFN therefore saves more than 95% of board space, enabling compact module designs where the same 28-pin functionality fits within a coin-sized area alongside SMD passives.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.6600 | $0.66 |
| 10+ | $0.6530 | $6.53 |
| 100+ | $0.5800 | $58.00 |
| 1000+ | $0.5700 | $570.00 |
| 5000+ | $0.5600 | $2800.00 |
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