PIC18LF25K83-E/SS - 32KB Flash 8-bit MCU with CAN | Microchip
MPN: PIC18LF25K83-E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.1 | $4.10 |
| 10 | $3.69 | $36.90 |
| 100 | $3.32 | $332.00 |
| 500 | $2.99 | $1,495.00 |
| 1,000 | $2.7 | $2,700.00 |
PIC18LF25K83-E/SS Overview
An 8-bit microcontroller (MCU) is a single-chip computer based on an 8-bit data bus architecture that integrates a CPU, memory, and peripherals. The PIC18F family uses an enhanced RISC Harvard architecture with 16-bit instructions and 8-bit data paths. Within the broader semiconductor taxonomy, the PIC18LF25K83 belongs to: microcontroller -> 8-bit MCU -> embedded controller -> semiconductor IC. CAN-enabled variants like this one serve as communication hubs in distributed automotive and industrial networks.
Key differentiating features include a 12-bit ADC with Computation (ADC2) that automates Capacitive Voltage Divider (CVD) for advanced touch sensing, averaging, filtering, and oversampling. The device integrates a 5-bit DAC, multiple PWM channels, DMA, and a dedicated CAN module. With 25 general-purpose I/O lines, the 28-SSOP package provides ample connectivity while maintaining a compact 5.30 mm body width.
The PIC18LF25K83 architecture uses a modified Harvard structure with separate program and data buses, allowing simultaneous instruction fetch and data access. XLP technology enables sleep currents down to nanoamps for battery-powered applications. The integrated CAN controller supports CAN 2.0B active protocol at up to 1 Mbps, eliminating external transceiver logic overhead for automotive body and industrial control networks.
Typical applications include automotive body electronics, industrial control nodes with CAN bus, capacitive touch interfaces, low-power sensor nodes, and home appliances. The combination of CAN, ADC2, and XLP makes it well-suited for distributed nodes that must wake, sample, communicate, and sleep efficiently on battery or bus power.
Designers should pair the MCU with a 3.3V LDO, place decoupling capacitors within 3 mm of VDD pins, and route the CANH/CANL traces as a 100-ohm differential pair. Ensure programming pin access (PGC/PGD) is reserved for in-circuit serial programming (ICSP) during PCB layout. Validate ESD and EMI margins per application environment.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a one-stop reference for selection and procurement.
Drop-in alternatives for PIC18LF25K83-E/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-E/SS (same form factor and footprint) — differing in Package, ADC, MSL Level, Program Memory (Flash), Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F25K83-E/SS
✅ Drop-In✓ In Stock
$2.28 / Unit
View Datasheet →PIC18LF25K83-I/SS
✅ Drop-In✓ In Stock
$1.62 / Unit
View Datasheet →PIC18LF26K83-E/SS
✅ Drop-In✓ In Stock
$2.46 / Unit
View Datasheet →PIC18LF25K83-E/SS Maximum Ratings & Electrical Characteristics
| Family | PIC18F K83 |
| Core Size | 8-bit |
| Core Architecture | PIC (RISC Harvard) |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 32 KB (16K x 16) |
| RAM | 2 KB |
| EEPROM | 1 KB |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +125 C |
| I/O Pins | 25 |
| ADC | 12-bit ADC2 with Computation |
| DAC | 5-bit |
| PWM Channels | Multiple (peripheral dependent) |
| Communication | CAN 2.0B Active, UART, SPI, I2C |
| Package | 28-SSOP (5.30 mm body) |
| Mounting Type | Surface Mount |
| MSL Level | 1 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
PIC18LF25K83-E/SS Pin Configuration
| Pin 1 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pin 2 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pin 3 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Pin 4 | RA3/AN3 — PORTA bit 3 / analog input 3 |
| Pin 5 | RA4/AN4 — PORTA bit 4 / analog input 4 |
| Pin 6 | RA5/AN5 — PORTA bit 5 / analog input 5 |
| Pin 7 | RA6/OSC2 — PORTA bit 6 / oscillator output |
| Pin 8 | RA7/OSC1 — PORTA bit 7 / oscillator input |
| Pin 9 | VDD — Positive supply voltage |
| Pin 10 | VSS — Ground reference |
| Pin 11 | RB0/AN12 — PORTB bit 0 / analog input 12 |
| Pin 12 | RB1/AN10 — PORTB bit 1 / analog input 10 |
| Pin 13 | RB2/AN8 — PORTB bit 2 / analog input 8 |
| Pin 14 | RB3/AN9 — PORTB bit 3 / analog input 9 |
| Pin 15 | RB4/AN11 — PORTB bit 4 / analog input 11 |
| Pin 16 | RB5/AN13 — PORTB bit 5 / analog input 13 |
| Pin 17 | RB6/ICSPCLK — PORTB bit 6 / ICSP clock |
| Pin 18 | RB7/ICSPDAT — PORTB bit 7 / ICSP data |
| Pin 19 | RC0 — PORTC bit 0 |
| Pin 20 | RC1 — PORTC bit 1 |
| Pin 21 | RC2 — PORTC bit 2 |
| Pin 22 | RC3 — PORTC bit 3 |
| Pin 23 | RC4 — PORTC bit 4 |
| Pin 24 | RC5 — PORTC bit 5 |
| Pin 25 | RC6 — PORTC bit 6 |
| Pin 26 | RC7 — PORTC bit 7 |
| Pin 27 | VSS — Ground reference |
| Pin 28 | VDD — Positive supply voltage |
Typical Applications
PIC18LF25K83-E/SS is suitable for 6 applications: Automotive Body Electronics with CAN, Capacitive Touch User Interface, Industrial CAN Sensor Nodes, Low-Power IoT Edge Devices, Home Appliance Control Boards, Building Automation Lighting Controllers.
Automotive Body Electronics with CAN
The PIC18LF25K83-E/SS is well-suited for automotive body control modules with CAN bus connectivity. Its integrated CAN 2.0B Active controller operates at up to 1 Mbps, eliminating the need for an external CAN controller and reducing PCB area. The 1.8 V-3.6 V VDD range supports 3.3 V body electronics rails commonly used in modern vehicles. The 12-bit ADC2 with Computation enables analog sensor reading for window position, lighting control, or seat occupancy detection, while the 5-bit DAC supports dimming and analog trim. With 32 KB Flash, the part has ample headroom for CANopen or J1939 protocol stacks, diagnostics, and application firmware. Designers should add a high-ESD protected CAN transceiver such as the MCP2562 to complete the physical layer.
Recommended
Capacitive Touch User Interface
The PIC18LF25K83-E/SS is ideal for capacitive touch buttons, sliders, and proximity sensors. The integrated 12-bit ADC2 with Computation automates Capacitive Voltage Divider (CVD) techniques, providing built-in noise filtering, averaging, and oversampling without CPU intervention. This enables robust touch sensing in the presence of moisture, EMI, or temperature drift. The 25 I/O pins allow multiple touch channels plus indicators, while XLP technology keeps sleep current low for battery-powered remotes. According to the family datasheet, ADC2 reduces firmware complexity and frees the CPU for communication tasks. A typical implementation uses 4-12 touch electrodes scanned in sequence with minimal external components.
Recommended
Industrial CAN Sensor Nodes
The PIC18LF25K83-E/SS fits distributed industrial sensor nodes that communicate over CAN bus. Its 64 MHz core delivers 16 MIPS, providing headroom for sensor processing, calibration, and protocol stack execution in real time. The 32 KB Flash accommodates CANopen, DeviceNet, or proprietary CAN libraries, while 2 KB RAM supports message buffering and application variables. The 1.8 V-3.6 V supply range allows operation from regulated industrial 24 V buses via a small LDO, minimizing power dissipation. Multiple PWM channels drive actuators or indicators, and 25 I/O lines support local sensor interfacing. XLP technology enables nanoamp sleep current for battery-backed nodes that wake periodically to transmit over CAN.
Recommended
Low-Power IoT Edge Devices
The PIC18LF25K83-E/SS is an excellent choice for battery-powered IoT edge devices requiring moderate processing and connectivity. The 'LF' (low-voltage) designation enables eXtreme Low Power operation, with sleep currents measured in nanoamps that extend battery life across multi-year deployments. The 64 MHz core provides enough performance for sensor fusion, threshold detection, and protocol tasks before returning to sleep. The 32 KB Flash stores application firmware and configuration, while 1 KB EEPROM preserves calibration data without battery backup. Designers can wake the MCU via ADC threshold, comparator, or watchdog timer, then transmit over UART, SPI, or I2C before returning to deep sleep, making it ideal for remote sensors.
Recommended
Home Appliance Control Boards
The PIC18LF25K83-E/SS suits home appliance control boards in washing machines, dishwashers, and HVAC systems. The 12-bit ADC2 reads multiple analog sensors (temperature, water level, motor current) with hardware averaging that reduces CPU burden. The PWM channels drive motor controls, valve actuation, and indicator LEDs with precise timing. The integrated CAN or UART interfaces support communication with display panels, inverter boards, or external diagnostic tools. With 32 KB Flash, designers can implement safety routines, fault logging, and energy-efficiency algorithms. The -40 C to +125 C extended temperature grade ensures reliable operation in appliance environments that include heat, humidity, and vibration.
Recommended
Building Automation Lighting Controllers
The PIC18LF25K83-E/SS is well-matched to building automation lighting controllers that require DMX-style or DALI-style dimming with capacitive touch panels. The ADC2 with CVD delivers reliable touch input on glass or plastic overlays, while PWM channels drive LED drivers with 12-bit resolution for smooth dimming. The 32 KB Flash accommodates DALI protocol libraries, scene memory, and adaptive lighting algorithms. Low-voltage operation (1.8 V-3.6 V) supports direct connection to 3.3 V LED driver rails. CAN or UART interfaces enable integration into building management systems for centralized control and monitoring, making this MCU a flexible platform for commercial lighting products.
Recommended
Recommended Products Summary
Engineering reference data for PIC18LF25K83-E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F25K83-E/SS | PIC18LF25K83-I/SS | PIC18LF26K83-E/SS | PIC18LF25K83-E/SO | PIC18LF25K83-E/ML |
|---|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SOIC - different footprint | 28-QFN - different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 32 KB | 64 KB | 32 KB | 32 KB |
| RAM | 2 KB | 2 KB | 2 KB | 4 KB | 2 KB | 2 KB |
| Operating Voltage | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| CAN Module | Yes (CAN 2.0B Active) | Yes (CAN 2.0B Active) | Yes (CAN 2.0B Active) | Yes (CAN 2.0B Active) | Yes (CAN 2.0B Active) | Yes (CAN 2.0B Active) |
| ADC | 12-bit ADC2 with Computation | 12-bit ADC2 with Computation | 12-bit ADC2 with Computation | 12-bit ADC2 with Computation | 12-bit ADC2 with Computation | 12-bit ADC2 with Computation |
| Approx. Unit Price (qty 1000) | USD 2.70 | USD 2.85 | USD 2.55 | USD 3.20 | USD 2.85 | USD 3.10 |
Key Differentiators
- Lowest minimum voltage in 28-SSOP K83 family (vs PIC18F25K83-E/SS)
- Extended temperature grade for harsh environments (vs PIC18LF25K83-I/SS)
- Drop-in pin-compatible memory upgrade option (vs PIC18LF26K83-E/SS)
Design Notes
Estimated: At 64 MHz CPU and active peripherals, the PIC18LF25K83-E/SS typically draws 15-20 mA from VDD. Place a 100 nF ceramic decoupling capacitor within 3 mm of each VDD pin (pins 9 and 28) and a bulk 10 uF tantalum or ceramic capacitor nearby. Use a low-Iq LDO such as MCP1700 (1.6 uA quiescent) to maximize XLP sleep current savings. Ensure VDD rise time meets Microchip specification for proper Power-On Reset behavior.
For CAN applications, route CANH (RC6) and CANL (RC7) as a 100-ohm differential pair with characteristic impedance of 120 ohms, keeping trace length under 50 mm where possible. Place the MCP2562 CAN transceiver adjacent to the MCU with VDD decoupling as close as possible. The 28-SSOP package benefits from a continuous ground plane beneath the IC to improve thermal dissipation and EMI performance. Reserve PGC/PGD test points on the PCB for in-circuit serial programming (ICSP) access during prototyping and field updates.
Do not exceed the maximum VDD of 3.6 V on the LF variant - the higher-rated PIC18F25K83 supports up to 5.5 V but the 'LF' pinout variant is strictly 1.8 V-3.6 V. When migrating from PIC18F25K83 designs, verify VDD regulators do not exceed 3.6 V transient spikes. Also, ensure the ADC2 voltage reference is selected properly (default VDD) to avoid full-scale errors. For touch sensing with CVD, route shield traces between sensor electrodes to prevent crosstalk, and verify touch firmware against moisture tolerance requirements.
Place a guard ring (ground trace) around capacitive touch electrodes, connected to a quiet analog ground. Keep digital switching traces away from analog inputs to minimize ADC noise coupling. For SSOP packages, use solder mask defined (SMD) pads with a 0.4 mm aperture on the 0.65 mm pitch leads to ensure reliable paste release during reflow. The exposed thermal pad on QFN variants must be soldered to a properly plated thermal via array for rated power dissipation.
Compliance Information
Industrial-grade part (-40 C to +125 C); not AEC-Q100 qualified. RoHS and REACH compliant per Microchip product page. Halogen-free per Microchip packaging specifications. For automotive-grade K83 with AEC-Q100, use the automotive-qualified PIC18F25K83-E/SS (not the LF variant).
