PIC18F26K22-E/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip PIC18F26K22-E/SO is an 8-bit PIC18 microcontroller running at up to 64 MHz with 64KB Flash, 12-bit ADC, and dual enhanced USART in a 28-pin SOIC package. It operates from 2.3V at 16 MHz for low-power battery applications, or 5V at full 64 MHz speed. Available in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F26K22-E/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.8900(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 64 MHz operation at 5V supply delivering up to 16 MIPS for responsive 8-bit sensor and control tasks
- Wide supply range from 2.3V at 16 MHz to 5V at 64 MHz enabling use across battery-powered and mains-powered designs without hardware changes
- 64KB Flash with in-circuit self-programming (ICSP) supports field-updatable firmware in deployed industrial equipment
- Dual enhanced EUSART modules with hardware auto-baud detection simplify RS-232 and RS-485 multi-drop communication without external rate circuitry
Applications
The PIC18F26K22-E/SO is used in industrial sensor nodes, HVAC control boards, and home automation controllers that require an 8-bit MCU with both serial communication ports and a 12-bit ADC for environmental sensing. Its wide supply range from 2.3V to 5V makes it suitable for battery-operated handheld instruments such as digital thermostats and portable data loggers where supply voltage sags as batteries discharge. The 28-pin SOIC footprint and extended -40°C to +125°C E-grade temperature range also suit automotive interior climate control modules and remote keyless entry systems.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 5Weeks |
| YTEOL | 9 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES 2.3V MINIMUM SUPPLY AT 16 MHZ |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC18 |
| Clock Frequency-Max | 64MHz |
| DAC Channels | YES |
| 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 DMA Channels | 3 |
| Number of I/O Lines | 25 |
| 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 | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 250 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 3896 |
| RAM (words) | 3896 |
| ROM (words) | 65536 |
| ROM Programmability | FLASH |
| Speed | 48MHz |
| Supply Current-Max | 12mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.7V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| 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 | 8542.31.00.15 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC18F26K22-E/SO:
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 64MHz, CMOS, PDSO28
Frequently Asked Questions
How does the PIC18F26K22-E/SO achieve low-power operation in battery-powered sensor applications?
The PIC18F26K22-E/SO operates at a minimum supply voltage of 2.3V at 16 MHz core clock, reducing dynamic power consumption compared to full-speed 5V operation. In sleep mode the device draws less than 1 µA from the 2.3V rail, with the watchdog timer running from the internal LFINTOSC oscillator at 31 kHz. Wakeup sources include pin change interrupts, the comparator module, or a Timer1 alarm, allowing the 8-bit CPU to remain in deep sleep between sensor sample intervals measured in seconds while conserving battery capacity.
What ADC resolution and channel count does the PIC18F26K22-E/SO provide for analog sensor interfacing?
The PIC18F26K22-E/SO includes a 12-bit successive-approximation ADC with up to 12 external analog input channels multiplexed through a single ADC core. At 64 MHz system clock the ADC achieves a maximum sampling rate of approximately 100 kSPS with a minimum acquisition time of 2.4 µs per channel. A programmable voltage reference allows the ADC full-scale input to be set by an external VREF+ pin or tied to the supply rail, accommodating ratiometric sensors like potentiometers and resistive bridges alongside absolute-voltage sensors.
Can the PIC18F26K22-E/SO drive an RS-485 multi-drop network directly for industrial SCADA communication?
The PIC18F26K22-E/SO includes 2 enhanced EUSART modules each supporting RS-485 mode with automatic hardware DE (driver enable) assertion on transmit and automatic line-turn-around on receive. The EUSART supports asynchronous operation at up to 1 Mbps baud rate at 64 MHz, sufficient for MODBUS RTU at 115200 bps on a multi-drop RS-485 bus. An external RS-485 transceiver such as the MAX485 is still required, but the hardware DE pin eliminates the GPIO toggle firmware typically needed to control the driver enable signal in software-managed half-duplex RS-485.
How does the 28-pin SOIC package of the PIC18F26K22-E/SO fit into a compact 8-bit control board compared to a DIP alternative?
The 28-pin SOIC package has a body width of 7.5 mm and a pin pitch of 1.27 mm, occupying roughly 40% less PCB area than a 28-pin DIP package with 2.54 mm through-hole pitch and 13.5 mm row-to-row spacing. The SOIC surface-mount footprint also eliminates drilling costs for through-hole pads and enables placement on the component side of double-sided boards, increasing routing flexibility for the 64KB Flash firmware download header and ADC analog routing away from digital switching noise.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.8100 | $3.81 |
| 5+ | $3.7300 | $18.65 |
| 25+ | $3.6000 | $90.00 |
| 81+ | $3.4100 | $276.21 |
| 100+ | $3.1500 | $315.00 |
| 1000+ | $2.8900 | $2890.00 |
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