PIC18F2685-I/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip PIC18F2685-I/SO is an 8-bit PIC18 microcontroller with 96 KB Flash, running at up to 40 MHz with integrated ADC, housed in a lead-free SOIC-28 package. Available from global distributors with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F2685-I/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $11.0000(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
- 8-bit PIC18 architecture with up to 40 MHz clock delivering 10 MIPS for real-time embedded control
- 96 KB Flash program memory supporting large firmware images with in-circuit serial programming (ICSP)
- Integrated multi-channel ADC enabling direct analog sensor acquisition without external conversion hardware
- Lead-free SOIC-28 package in a 7.5 mm body width, compatible with standard 28-pin SOIC PCB footprints
Applications
The PIC18F2685-I/SO is suited for industrial monitoring, building automation, and consumer appliance control where a mid-range 8-bit microcontroller with generous Flash capacity is needed. Its 40 MHz operation and ADC integration enable concurrent data acquisition from multiple sensors alongside serial communication tasks over UART, SPI, or I2C. The SOIC-28 package provides sufficient I/O pins for interfacing displays, keypads, and actuators in compact control panel designs.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 11Weeks |
| YTEOL | 9 |
| Has ADC | YES |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC18 |
| Clock Frequency-Max | 40MHz |
| 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 | NO |
| Number of External Interrupts | 3 |
| Number of I/O Lines | 28 |
| Number of Serial I/Os | 1 |
| Number of Timers | 4 |
| 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) | 3328 |
| ROM (words) | 98304 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 40MHz |
| Supply Current-Max | 44mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2V |
| Supply Voltage-Nom | 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 |
| ## PIC18F2685-I/SO Alternates Showing results | Image |
| 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
Compatible alternatives and drop-in replacements for PIC18F2685-I/SO:
suggested
suggested
suggested
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PDSO28
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PDSO28
Frequently Asked Questions
How much Flash memory does the PIC18F2685-I/SO include and how does this compare to smaller PIC18 variants?
The PIC18F2685-I/SO includes 96 KB of Flash program memory, which is significantly larger than the 8 KB or 32 KB found on smaller PIC18 variants. This allows designers to store complex firmware with multiple communication stacks, lookup tables, and bootloaders without external memory, while still running at 40 MHz for responsive real-time control.
For a building automation sensor node, how does the PIC18F2685-I/SO's ADC support multiple sensor inputs?
The PIC18F2685-I/SO integrates an ADC with multiple input channels, allowing simultaneous connection of temperature, humidity, and pressure sensors on a single 28-pin device. Operating at 40 MHz, the microcontroller can sample each channel at rates exceeding 100 kHz, providing low-latency environmental monitoring with direct digital output to a host controller via UART or I2C.
When is the SOIC-28 package of the PIC18F2685-I/SO a better PCB choice than a QFN alternative?
The SOIC-28 package is preferred when manual soldering or rework in the field is required, as its 1.27 mm pin pitch and gull-wing leads are accessible to standard soldering irons without reflow ovens. Its 7.5 mm body width fits standard DIP-28 padapted footprints on prototype boards, reducing development time compared to a QFN that demands precise stencil printing.
What interface options does the PIC18F2685-I/SO offer for connecting to external sensors and actuators?
The PIC18F2685-I/SO provides UART, SPI, and I2C hardware peripherals alongside multiple PWM output channels and the integrated multi-channel ADC. This peripheral set covers 2-wire or 4-wire serial communication with sensors, motor drivers, and display modules, eliminating the need for separate interface ICs in most embedded designs and keeping system BOM cost and board area minimal.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $11.2800 | $11.28 |
| 27+ | $11.1790 | $301.83 |
| 432+ | $11.0000 | $4752.00 |
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