PIC18LF25K83-I/SS - 8-bit 64MHz 32KB Flash MCU w/ CAN | Microchip
MPN: PIC18LF25K83-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.2 | $3.20 |
| 10 | $2.86 | $28.60 |
| 100 | $2.45 | $245.00 |
| 500 | $2.1 | $1,050.00 |
| 1,000 | $1.85 | $1,850.00 |
| 3,000 | $1.62 | $4,860.00 |
PIC18LF25K83-I/SS Overview
A PIC microcontroller is a compact programmable logic device based on Harvard architecture, integrating a CPU, non-volatile Flash, volatile SRAM, EEPROM, and rich peripherals on a single CMOS die. Within the broader semiconductor hierarchy, it belongs to the microcontroller (MCU) class under microcontrollers and processors, sitting below microprocessors in complexity but above bare logic ICs in capability. PIC18 devices add 16-bit-wide instructions and a linear program/data memory map, making them a mainstream choice for embedded control in industrial, automotive, medical, and consumer products.
The PIC18LF25K83 emphasizes Core Independent Peripherals (CIPs) - 15 hardware blocks that operate without CPU intervention. Highlights include the 12-bit ADC2 with automated averaging/filtering/oversampling, the Complementary Waveform Generator (CWG), Configurable Logic Cells (CLC), Zero-Cross Detect (ZCD), and a 32-bit CRC engine. These CIPs free the core for higher-level tasks and reduce firmware size. The integrated CAN 2.0B controllers with device net filtering support robust industrial and automotive networking at bit rates up to 1 Mbps.
Designed for low-power operation, the device supports XLP (eXtreme Low Power) modes including Sleep currents down to the sub-microamp range, making it ideal for always-on battery-powered sensors. The 64MHz internal oscillator eliminates the need for external crystals in many designs. The 28-SSOP package (5.30mm body width, 0.65mm pitch) is compatible with hand-soldering and standard pick-and-place assembly.
Typical applications include automotive body and comfort modules, industrial CAN nodes (sensor hubs, motor controllers), medical handheld instruments, capacitive touch user interfaces, and battery-powered IoT edge nodes where CAN connectivity and low standby current are simultaneously required.
For design, prioritize the SSOP exposed pad soldering profile per JEDEC J-STD-020 and use the MPLAB X IDE with MCC (MPLAB Code Configurator) to configure CIPs graphically. Decouple VDD with at least 100nF ceramic near each supply pin and add a 10uF bulk capacitor for ADC reference stability.
This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC18LF25K83-I/SS — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC18LF25K83-I/SS (same form factor and footprint) — differing in ADC, Package, Core Architecture, Program Memory (Flash), Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F25K83-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF25K83T-I/SS
✅ Drop-In✓ In Stock
$1.97 / Unit
View Datasheet →PIC18LF25K83-E/SS
✅ Drop-In✓ In Stock
$2.7 / Unit
View Datasheet →PIC18LF26K83-I/SS
✅ Drop-In✓ In Stock
$2.78 / Unit
View Datasheet →PIC18LF25K80-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF25K50-I/SS
✅ Drop-In✓ In Stock
$1.75 / Unit
View Datasheet →PIC18LF25K83-I/SS Maximum Ratings & Electrical Characteristics
| Core | PIC18 8-bit RISC |
| Program Memory Type | Flash |
| Program Memory Size | 32 KB (16K x 16) |
| RAM Size | 2 KB |
| EEPROM Size | 1 KB |
| Maximum CPU Speed | 64 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| CAN Controllers | 2 (CAN 2.0B) |
| ADC | 12-bit ADC2 with Computation |
| I2C Modules | 2 |
| SPI Modules | 2 |
| DMA Channels | 2 |
| Package | 28-pin SSOP (5.30 mm body, 0.65 mm pitch) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| RoHS Status | Compliant |
| MSL Level | 1 |
PIC18LF25K83-I/SS Pin Configuration
| Pin 1 | RA0/ANA0 — Bidirectional I/O / ADC analog input |
| Pin 2 | RA1/ANA1 — Bidirectional I/O / ADC analog input |
| Pin 3 | RA2/ANA2 — Bidirectional I/O / ADC analog input |
| Pin 4 | RA3/ANA3 — Bidirectional I/O / ADC analog input |
| Pin 5 | RA4/ANA4 — Bidirectional I/O / ADC analog input |
| Pin 6 | RA5/ANA5 — Bidirectional I/O / ADC analog input |
| Pin 7 | RA6/OSC2 — I/O / oscillator output |
| Pin 8 | RA7/OSC1 — I/O / oscillator input |
| Pin 9 | VDD — Positive supply (1.8V-3.6V) |
| Pin 10 | VSS — Ground reference |
| Pin 11 | RB0/INT0 — I/O / external interrupt 0 |
| Pin 12 | RB1/INT1 — I/O / external interrupt 1 |
| Pin 13 | RB2/INT2 — I/O / external interrupt 2 |
| Pin 14 | RB3/INT3 — I/O / external interrupt 3 |
| Pin 15 | RB4/CCP4 — I/O / capture/compare PWM 4 |
| Pin 16 | RB5/CCP5 — I/O / capture/compare PWM 5 |
| Pin 17 | RB6/PGC — I/O / ICSP clock |
| Pin 18 | RB7/PGD — I/O / ICSP data |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply (1.8V-3.6V) |
| Pin 21 | RC0/SOSCO — I/O / secondary oscillator output |
| Pin 22 | RC1/SOSCI — I/O / secondary oscillator input |
| Pin 23 | RC2/CCP1 — I/O / capture/compare PWM 1 |
| Pin 24 | RC3/CCP2 — I/O / capture/compare PWM 2 |
| Pin 25 | RC4/CCP3 — I/O / capture/compare PWM 3 |
| Pin 26 | RC5 — Bidirectional I/O |
| Pin 27 | RC6/CANTX — I/O / CAN transmit |
| Pin 28 | RC7/CANRX — I/O / CAN receive |
Typical Applications
PIC18LF25K83-I/SS is suitable for 6 applications: Automotive CAN Node, Industrial Sensor Hub, Capacitive Touch User Interface, Battery-Powered IoT Edge Node, Medical Handheld Instrument, Motor Control and PWM Drive.
Automotive CAN Node
The PIC18LF25K83-I/SS's dual integrated CAN 2.0B controllers and 1.8V-3.6V operation make it well suited for 12V automotive body and comfort modules regulated down to 3.3V. With 32 KB Flash and 2 KB SRAM the device can run a CANopen or J1939 lightweight stack while still leaving room for diagnostics and EEPROM-backed fault history. The 12-bit ADC2 with computation automates sensor conditioning for temperature and pressure inputs, and the XLP Sleep mode below 1 uA supports quiescent current budgets on parked vehicles.
Recommended
Industrial Sensor Hub
Industrial 4-20 mA and 0-10V sensor hubs benefit from the PIC18LF25K83-I/SS's 12-bit ADC2, dual I2C/SPI, and CIP peripherals that offload measurement tasks from the CPU. The Core Independent Peripherals (CLC, CWG, ZCD, SMT) enable hardware zero-cross detection for AC line measurements and PWM generation for actuator drive without CPU intervention. Two DMA channels keep ADC readings flowing into memory while the core handles Modbus RTU over UART or CAN, supporting deterministic response in noisy industrial environments.
Recommended
Capacitive Touch User Interface
The PIC18LF25K83-I/SS integrates ADC2 with built-in Capacitive Voltage Divider (CVD) automation, dramatically simplifying matrix touch key and slider implementation. The CIP-based hardware averaging and oversampling eliminate firmware loops for noise-robust touch detection, freeing CPU cycles for backlight control and user feedback. With 32 KB Flash, designers can implement multiple touch zones plus an LED ring driver via the CWG peripheral in a single 28-SSOP chip, reducing BOM and PCB area.
Recommended
Battery-Powered IoT Edge Node
For battery-powered IoT edge nodes, the PIC18LF25K83-I/SS's XLP Sleep current under 1 uA and 1.8V minimum operation enable multi-year coin-cell operation. The 64 MHz performance allows brief wake-burst measurements and CAN or SPI comms before returning to Sleep. Core Independent Peripherals (SMT for timing, CLC for event-driven wake) minimize the awake-time energy budget. The 28-SSOP package supports hand assembly for low-volume industrial IoT deployments.
Recommended
Medical Handheld Instrument
Medical handheld instruments such as point-of-care diagnostics and portable monitors benefit from the PIC18LF25K83-I/SS's low-power PIC18 core, dual CAN for connection to bedside CAN networks, and 12-bit ADC2 for precise analog sensor readout. The eXtreme Low Power modes extend battery life across shifts, while the 28-SSOP package supports compact handheld enclosures. CIP peripherals like the CRC engine ensure data integrity for clinical measurements without burdening the CPU.
Recommended
Motor Control and PWM Drive
Brushless DC and stepper motor control designs leverage the PIC18LF25K83-I/SS's Complementary Waveform Generator (CWG), Configurable Logic Cells (CLC), and 32-bit PWM resolution to produce center-aligned PWM with dead-band control. The high-speed ADC2 with computation can sample back-EMF and current shunt signals synchronously with the PWM, while DMA channels move samples without CPU intervention. Two CAN controllers support CAN-based motion-control feedback loops and multi-axis coordination in industrial machinery.
Recommended
Recommended Products Summary
Engineering reference data for PIC18LF25K83-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F25K83-I/SS | PIC18LF25K83T-I/SS | PIC18LF25K83-E/SS | PIC18LF26K83-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 64 KB |
| Operating Voltage | 1.8V-3.6V | 2.3V-5.5V | 1.8V-3.6V | 1.8V-3.6V | 1.8V-3.6V |
| CAN Controllers | 2 | 2 | 2 | 2 | 2 |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C |
| ADC | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 |
| RAM Size | 2 KB | 2 KB | 2 KB | 2 KB | 4 KB |
| EEPROM Size | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
Key Differentiators
- Dual CAN 2.0B controllers with extended acceptance filters (vs PIC18LF25K50-I/SS)
- 12-bit ADC2 with computation automation (vs PIC18LF25K80-I/SS)
- XLP Sleep current below 1 uA with RAM retention (vs PIC18F25K83-I/SS)
- 15 Core Independent Peripherals (CIPs) operating without CPU (vs PIC18LF26K83-I/SS)
Design Notes
Decouple both VDD pins (9 and 20) with a 100 nF ceramic capacitor placed within 3 mm of each pin, and add a single shared 10 uF bulk capacitor near the MCU. The PIC18LF25K83 has two VDD/VSS pairs to reduce digital switching noise on analog references; route them as star-ground topology with the analog ground return for ADC reference decoupling. For Sleep-current-sensitive designs, disable unused peripherals via PMD registers before entering Sleep.
Route the 28-SSOP package on a 2-layer FR4 with continuous ground pour under the device to minimize digital switching noise coupling into ADC inputs. Place the MCP2551 CAN transceiver and its bypass capacitors within 25 mm of the CANTX/CANRX pins (RC6/RC7) to keep the CAN bus differential pair short. Use Microchip's AN1078 and AN216 for CAN bus layout guidance including 120 ohm termination resistor placement at the bus ends.
Do not confuse the LF (1.8V-3.6V) and F (2.3V-5.5V) variants when sourcing - the LF will latch up if exposed to 5V signals on any pin. Also remember the 28-SSOP pinout differs from 28-SOIC mechanically even though the electrical pinout matches - PCB land patterns are NOT interchangeable. When migrating from PIC18F25K80 to PIC18LF25K83, verify firmware peripheral headers because the K83 family adds ADC2 CIP automation not present on K80.
Compliance Information
RoHS and REACH compliant per Microchip product page. The 'E' temperature-grade variant PIC18LF25K83-E/SS is automotive-temperature qualified; the standard 'I' industrial-grade part is not AEC-Q100 qualified. Use the /Q-graded variants for AEC-Q100 requirements.
