PIC18LF25K80-I/MM - 8-bit 64MHz MCU, 32KB Flash, ECAN | Microchip
MPN: PIC18LF25K80-I/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.47 | $6.47 |
| 10 | $5.83 | $58.30 |
| 100 | $5.18 | $518.00 |
| 500 | $4.62 | $2,310.00 |
| 1,000 | $4.05 | $4,050.00 |
PIC18LF25K80-I/MM Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, program and data memory, peripheral I/O, and timers into one package. The PIC18 family is built on an enhanced 8-bit Harvard RISC architecture widely used in automotive, industrial, and consumer embedded designs. XLP (eXtreme Low Power) technology is Microchip's branding for sub-uA sleep currents, making LF (low-voltage F) parts popular in battery-powered and energy-harvesting applications.
Key features include one ECAN module (CAN 2.0B active) for in-vehicle networking, an integrated 12-bit ADC with up to 8 analog channels, a CTMU peripheral for touch sensing and temperature conversion, four 16-bit timers/capture/compare modules, two UART, two SPI, and one I2C. The NanoWatt XLP modes drop quiescent current to nanoampere levels, enabling years of operation from a single coin cell.
In the architecture, an 8-bit data path feeds 16-bit instructions with a hardware multiplier, and the in-circuit serial programming (ICSP) and in-circuit debug (ICD) interfaces remain accessible on the QFN pins, simplifying prototyping. The dual oscillator block supports crystal, resonator, or internal HF/LF oscillator with PLL.
Typical applications include CAN-based automotive body and chassis modules, building automation sensor nodes, industrial sensor hubs, and low-power IoT edge devices using ECAN as the fieldbus. The wide 1.8-5.5V input range also suits battery-backed metering. The CTMU enables capacitive touch keys and proximity sensing without an external timer IC.
When designing with this device, allocate the exposed thermal pad to a continuous copper pour for thermal and electrical grounding. Ensure the ECAN bus transceiver (e.g., MCP2561) is paired with proper bus termination. The 28-QFN footprint rules out legacy through-hole boards; use a 4-layer PCB with a continuous ground plane below the part for EMI control.
This page synthesizes datasheet specifications, distributor availability, drop-in compatible PIC MCU alternatives, and practical hardware design notes not assembled on any single OEM page.
Drop-in alternatives for PIC18LF25K80-I/MM — 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 PIC18LF25K80-I/MM (same form factor and footprint) — differing in Package, ADC, Core Architecture, Operating Temperature, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F26K80-I/MM
✅ Drop-In✓ In Stock
$2.86 / Unit
View Datasheet →PIC18LF26K80-I/MM
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F25K80-I/MM
✅ Drop-In✓ In Stock
$1.8 / Unit
View Datasheet →PIC18LF25K80T-I/MM
✅ Drop-In✓ In Stock
$2.1 / Unit
View Datasheet →PIC18F25K80-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.45 / Unit
View Datasheet →PIC18LF25K80-I/MM Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC18 Harvard RISC (enhanced) |
| Program Memory (Flash) | 32 KB (16K x 16) |
| RAM | 3.6 KB (3648 B) |
| EEPROM | 1 KB (data EEPROM) |
| Maximum CPU Speed | 64 MHz (16 MIPS) |
| Supply Voltage Range (LF) | 1.8 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial, "I") |
| ADC | 12-bit, up to 8 channels |
| CTMU | Yes (Charge Time Measurement Unit) |
| CAN Interface | ECAN 2.0B active, 1 module |
| UART | 2 |
| SPI | 2 |
| I2C | 1 (MSSP) |
| Timers | 4 x 16-bit Timer/Capture/Compare |
| Package | 28-pin QFN-S (6x6 mm) with exposed pad |
| Mounting Type | Surface Mount |
| MSL Level | 1 (per JEDEC J-STD-020) |
| Power Technology | NanoWatt XLP (extreme low power) |
| RoHS Status | Compliant |
| Lead Free | Yes |
PIC18LF25K80-I/MM Pin Configuration
| Pin 1 | VDD — Positive supply (1.8-5.5V) |
| Pin 2 | RA5/AN4/CPS13 — Port A bit 5; analog input 4; CTMU CPS |
| Pin 3 | RA4/AN3/CPS12 — Port A bit 4; analog input 3; CTMU CPS |
| Pin 4 | RA3/AN2/VREF- — Port A bit 3; analog input 2; negative reference |
| Pin 5 | RA2/AN1/VREF+ — Port A bit 2; analog input 1; positive reference |
| Pin 6 | RA1/AN0/CPS6 — Port A bit 1; analog input 0; CTMU CPS |
| Pin 7 | RA0/CPS0 — Port A bit 0; CTMU CPS |
| Pin 8 | VSS — Ground |
| Pin 9 | OSC1/CLKI/RA7 — Crystal oscillator input or external clock |
| Pin 10 | OSC2/CLKO/RA6 — Crystal oscillator output; or FOSC/4 clock out |
| Pin 11 | RC0/SOSCO — Port C bit 0; secondary oscillator output |
| Pin 12 | RC1/SOSCI — Port C bit 1; secondary oscillator input |
| Pin 13 | RC2/CCP1 — Port C bit 2; Capture/Compare/PWM 1 |
| Pin 14 | RC3/REFO/SCL1 — Port C bit 3; reference clock out; I2C clock |
| Pin 15 | RC4/SDA1/SDI1 — Port C bit 4; I2C data; SPI data in |
| Pin 16 | RC5/SDO1 — Port C bit 5; SPI data out |
| Pin 17 | RC6/TX1/CK1 — Port C bit 6; UART1 TX; clock out |
| Pin 18 | RC7/RX1/DT1 — Port C bit 7; UART1 RX; data |
| Pin 19 | VSS — Ground |
| Pin 20 | VDD — Positive supply |
| Pin 21 | RB7/ECANRX — Port B bit 7; ECAN receive input |
| Pin 22 | RB6/ECANTX — Port B bit 6; ECAN transmit output |
| Pin 23 | RB5/AN11/CPS5 — Port B bit 5; analog input; CTMU CPS |
| Pin 24 | RB4/AN10/CPS4 — Port B bit 4; analog input; CTMU CPS |
| Pin 25 | RB3/CCP2/AN9 — Port B bit 3; Capture/Compare/PWM 2; analog input |
| Pin 26 | RB2/INT2/CANTX2 — Port B bit 2; external interrupt 2; alt CAN TX |
| Pin 27 | RB1/INT1/CANRX2 — Port B bit 1; external interrupt 1; alt CAN RX |
| Pin 28 | RB0/INT0 — Port B bit 0; external interrupt 0 |
Typical Applications
PIC18LF25K80-I/MM is suitable for 6 applications: Automotive CAN Body and Chassis Modules, Building Automation Sensor Nodes, Industrial Sensor Hubs and Field Instruments, Low-Power IoT Edge Nodes, Capacitive Touch Human-Machine Interfaces, Battery-Backed Smart Meters and Data Loggers.
Automotive CAN Body and Chassis Modules
The PIC18LF25K80-I/MM is engineered for AEC-grade CAN networks where its integrated ECAN 2.0B controller (with 6 hardware acceptance masks and 16-bit timestamps) handles up to 1 Mbit/s bus traffic without CPU intervention. The wide 1.8-5.5V range survives cranking transients when paired with a 5V regulator, while the NanoWatt XLP sleep currents (sub-uA) keep quiescent draw within automotive parasitic budgets. The exposed thermal pad and 28-QFN footprint suit compact body controllers behind dashboards.
Recommended
Building Automation Sensor Nodes
For HVAC and lighting-control fieldbus nodes the device's LF 1.8V minimum supply enables long-life battery or energy-harvesting designs (solar, Pelty, thermal). The 12-bit ADC with CTMU drives capacitive touch and humidity interfaces without an external timer IC, while the ECAN module provides robust wiring-bus connectivity for building automation. Designers commonly pair the chip with a Microchip MCP2515 or on-chip ECAN over twisted-pair copper, achieving <1 mA average current in duty-cycled sensor mode.
Recommended
Industrial Sensor Hubs and Field Instruments
In 4-20 mA loop-powered transmitters and RS-485/CAN-modbus gateways, the PIC18LF25K80-I/MM serves as the local intelligence hub. Its 64 MHz/16 MIPS performance lets the chip run calibration, linearization, and HART-style protocol stacks in software, while the 12-bit ADC quantizes sensor inputs at high conversion rates. Industrial EMI immunity is reinforced by the QFN ground paddle tied to a continuous PCB ground plane on layer 2.
Recommended
Low-Power IoT Edge Nodes
Battery-powered IoT edge devices leverage the NanoWant XLP technology for sleep currents under 100 nA (typical 20 nA in RTCC mode), letting coin-cell deployments run for years. The integrated ECAN supports sub-GHz or wired IoT fieldbuses in industrial settings, while software UART/SPI/I2C handle short-range radio modules (BLE, LoRa, Sub-GHz). The PIC18 LF voltage range supports energy-harvesting rails from thermoelectric or photovoltaic cells directly into VDD.
Recommended
Capacitive Touch Human-Machine Interfaces
The integrated CTMU peripheral provides constant current to capacitive electrodes whose discharge time is measured by the 12-bit ADC. This makes the PIC18LF25K80-I/MM a single-chip touch controller for white-good front panels, medical device keypads, and industrial HMIs. The CTMU supports both self-capacitance (touch buttons) and mutual-capacitance (sliders/proximity) topologies with wake-on-touch capability, perfect for home appliances and consumer products.
Recommended
Battery-Backed Smart Meters and Data Loggers
For utility meters, water/gas metering, and remote data loggers, the LF 1.8V minimum supply allows direct operation from a single Li coin cell. The microcontroller's 1 KB EEPROM holds calibration constants and tamper counters across decades, while ECAN or SPI gives backhaul to a concentrator. With duty-cycled ADC sampling the MCU can run from a 220 mAh coin cell for 10+ years, paired with a Microchip MCP79410 RTCC for timekeeping.
Recommended
Recommended Products Summary
Engineering reference data for PIC18LF25K80-I/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F26K80-I/MM | PIC18LF26K80-I/MM | PIC18F25K80-I/MM | PIC18LF25K80T-I/MM | PIC18F25K80-I/SS |
|---|---|---|---|---|---|---|
| Package | 28-QFN-S (6x6 mm) | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | SSOP-28 - same logical pinout, different PCB footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 64 KB (+100%) | 64 KB (+100%) | 32 KB (same) | 32 KB (same) | 32 KB (same) |
| RAM | 3.6 KB | 4 KB (+11%) | 4 KB (+11%) | 3.6 KB (same) | 3.6 KB (same) | 3.6 KB (same) |
| Supply Voltage Range | 1.8 V to 5.5 V (LF) | 2.0 V to 5.5 V (F) | 1.8 V to 5.5 V (LF - same) | 2.0 V to 5.5 V (F) | 1.8 V to 5.5 V (LF - same) | 2.0 V to 5.5 V (F) |
| Maximum Frequency | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS |
| ECAN Module | 1 x ECAN 2.0B | 1 x ECAN 2.0B | 1 x ECAN 2.0B | 1 x ECAN 2.0B | 1 x ECAN 2.0B | 1 x ECAN 2.0B |
| 12-bit ADC Channels | 8 | 8 (same) | 8 (same) | 8 (same) | 8 (same) | 8 (same) |
| AEC-Q100 Qualified | No (Industrial grade) | No (Industrial grade) | No (Industrial grade) | No (Industrial grade) | No (Industrial grade) | No (Industrial grade) |
Key Differentiators
- Lowest voltage range in the K80 family (vs PIC18F25K80-I/MM (F variant))
- Standard 32 KB Flash at lower supply voltage (vs PIC18LF26K80-I/MM (64 KB))
- Integrated CTMU supports capacitive touch without external timer (vs PIC18F25K80-I/SS (SSOP package))
Design Notes
Estimated: VDD decoupling must include both a 100 nF ceramic (high-frequency) and a 1 uF bulk ceramic located within 3 mm of pins 1 and 20. NanoWatt XLP sleep currents drop below 100 nA when configured for RTCC-only retention; remember that each enabled peripheral contributes bias current and disable unused modules via PMD registers. When powered from a switching regulator, place the LDO close to VDD to bypass switching noise that disrupts ADC accuracy.
The 28-QFN package exposes a center thermal pad that must be soldered to a continuous PCB copper pour. With 6x6 mm area and 4-layer 2 oz copper, theta_JA reaches approximately 36 C/W (per Microchip package outline) - sufficient for the device's modest 100 mW dissipation. For full industrial -40 C to +85 C operation above 50 MHz, ensure adequate copper area on the top and bottom layers stitched with thermal vias.
Do not skip configuration word programming: the PIC18LF25K80-I/MM ships with internal oscillator disabled by default, and unprogrammed CW1/CW2 leaves the part running at 4 MHz FRC. Configure WDT, code protection, and ICSP pins via CONFIG registers before locking the Flash. When migrating from older PIC18F devices, note the LF voltage minimum: running below 1.8 V requires F variant.
Route ECANTX/ECANRX differential pair to the CAN transceiver with 100 ohm controlled impedance and equal trace lengths within 50 mil. Keep clock traces (OSC1/OSC2) short and surrounded by a ground guard ring. Place the 28-QFN ground paddle on the same net as VSS pin 8 and 19, with at least 4 thermal vias stitching to inner ground plane.
Compliance Information
RoHS and REACH compliant per Microchip product declaration. Industrial grade -40 C to +85 C; not AEC-Q100 qualified - choose AEC-Q100 K22/K40 grades for automotive.
