PIC18F26K20-I/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
PIC18F26K20-I/SO is an 8-bit PIC18 microcontroller from Microchip offering 64 KB Flash, 25 I/O pins, and up to 64 MHz clock in a 28-pin SOIC package with nanoWatt technology for low-power operation. It integrates an ADC and supports 1.8 V minimum supply for 16 MHz operation. RoHS-compliant and in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F26K20-I/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0800(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
- 64 KB Flash program memory with 8-bit PIC18 core running up to 64 MHz, enabling complex firmware in a compact SOIC-28 package
- nanoWatt XLP technology supports 1.8 V operation at 16 MHz and 2 V at 20 MHz, ideal for battery-powered and energy-harvesting designs
- Integrated ADC and 25 general-purpose I/O pins provide versatile analogue and digital interfacing for sensor-rich embedded applications
Applications
PIC18F26K20-I/SO targets embedded control applications where 64 KB Flash and 25 I/O pins are needed in a low-cost SOIC-28 form factor. Its nanoWatt XLP technology suits battery-operated devices such as portable meters, data loggers, and wireless sensor nodes that must retain state through deep-sleep intervals. The 64 MHz clock and integrated ADC also support real-time signal processing in industrial control panels and home automation gateways.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 5Weeks |
| YTEOL | 8 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES AT 1.8V MIN SUPPLY FOR 16 MHZ AND OPERATES AT 2V FOR 20 MHZ |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC18 |
| Clock Frequency-Max | 64MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 3 |
| Number of I/O Lines | 25 |
| Number of Serial I/Os | 1 |
| Number of Timers | 6 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 3936 |
| ROM (words) | 65536 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 64MHz |
| Supply Current-Max | 15mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Small Outline Packages |
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 is the maximum clock frequency of PIC18F26K20-I/SO, and at what supply voltage is it achievable?
PIC18F26K20-I/SO reaches its peak of 64 MHz when powered from a 3.3 V or 5 V supply. For lower-power designs, it operates at 16 MHz from a 1.8 V supply or 20 MHz from 2 V. This flexibility lets designers trade speed for supply voltage to match the available battery chemistry without changing the MCU.
How much Flash memory does PIC18F26K20-I/SO include, and what size of application firmware can it hold?
The device contains 64 KB of Flash program memory, which is enough to store a full RTOS kernel plus application code for typical embedded control tasks. At a conservative 4 bytes per instruction, this accommodates roughly 16,000 PIC18 instructions, more than sufficient for USB communication stacks, sensor fusion algorithms, and motor control loops on a single chip.
Which low-power modes does PIC18F26K20-I/SO offer for extending battery life in portable data loggers?
PIC18F26K20-I/SO uses Microchip's nanoWatt XLP technology, which delivers deep-sleep current below 100 nA in Sleep mode with the watchdog timer running. Combined with the ability to wake on pin change or timer overflow, this allows a data logger sampling once per minute to operate for years on a pair of AA batteries depending on active-mode duty cycle.
How does PIC18F26K20-I/SO compare to PIC18F25K20 for designs that need more program storage?
PIC18F26K20-I/SO doubles the Flash to 64 KB compared to the PIC18F25K20's 32 KB, while both share the same 28-pin SOIC footprint and peripheral set. If the application firmware exceeds 30 KB—common when integrating a bootloader plus a FAT file-system driver—PIC18F26K20 avoids a costly re-spin to a larger package. Pin compatibility makes the drop-in upgrade straightforward with no PCB changes.
What ADC resolution and how many channels does PIC18F26K20-I/SO provide for analogue sensor interfacing?
PIC18F26K20-I/SO integrates a 10-bit ADC with up to 13 multiplexed input channels, resolving voltages to approximately 4.9 mV per LSB at a 5 V reference. This precision is adequate for temperature sensors (e.g., LM35 at 10 mV/°C), current shunts, and resistive dividers used in battery-state monitoring or HVAC control applications.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.7220 | $2.72 |
| 10+ | $1.0800 | $10.80 |
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