PIC18F2480-I/SO - 8-bit 40MHz MCU 16KB Flash 28-SOIC | Microchip
MPN: PIC18F2480-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.45 | $6.45 |
| 10 | $5.81 | $58.10 |
| 100 | $5.17 | $517.00 |
| 500 | $4.65 | $2,325.00 |
| 1,000 | $4.13 | $4,130.00 |
PIC18F2480-I/SO Overview
An 8-bit MCU is a microcontroller whose datapath, registers, ALU and program memory are organised around an 8-bit data width; the PIC18 family in particular implements an enhanced Harvard architecture with 16-bit opcodes and an 8-bit data bus, placing it in the broader hierarchy of microcontroller -> embedded controller -> semiconductor. The PIC18F2480 sits within the PIC18F2x80 device family alongside the PIC18F2580, PIC18F4480 and PIC18F4580, which differ mainly in pin count (28 vs. 40/44) and CAN peripheral count; this 28-pin member is the smallest-footprint variant of the family.
Key features include 25 digital I/O pins, two analog comparators, a master synchronous serial port (MSSP) configurable as SPI or I2C, hardware ECAN supporting CAN 2.0B active (bit rates up to 1 Mbit/s), a 10-bit 8-channel ADC, four timer modules and nanoWatt Technology for reduced sleep current (as low as sub-1 uA typical). The 40 MHz oscillator yields 10 MIPS throughput, and on-chip in-circuit debug (ICD) plus two Enhanced Capture/Compare/PWM modules make it well-suited for closed-loop control.
Typical applications include industrial CAN nodes such as HVAC controllers, automotive body modules, sensor networks, building-automation gateways, industrial sensors and instrumentation. The industrial temperature grade and ECAN peripheral make the part a strong fit for factory-floor networked equipment where the PCB footprint must remain small. When designing in this MCU, place VDD/VSS bypass capacitors within a few millimetres of the supply pins and avoid routing the high-speed CANH/CANL traces through the oscillator region; reserve pin 1 (MCLR) for an in-circuit debug header unless the application does not require ICD.
Drop-in alternatives for PIC18F2480-I/SO — 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 PIC18F2480-I/SO (same form factor and footprint) — differing in Package, Core Architecture, ADC, MSL Level, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F2480-E/SO
✅ Drop-In✓ In Stock
$9.42 / Unit
View Datasheet →PIC18F2580-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F2431-I/SO
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →PIC18F2455-I/SO
✅ Drop-In✓ In Stock
$6.4 / Unit
View Datasheet →PIC18F2423-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F2480-I/SO Maximum Ratings & Electrical Characteristics
| Architecture | PIC18 8-bit enhanced RISC, Harvard |
| Program Memory (Flash) | 16 KB (8K x 16 instructions) |
| Data RAM | 768 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 40 MHz (10 MIPS) |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| I/O Pins | 25 |
| A/D Converter | 10-bit, up to 8 channels |
| CAN | ECAN (CAN 2.0B Active) |
| USART | 2 |
| MSSP (SPI / I2C) | Yes |
| Timers | 4 (TMR0, TMR1, TMR2, TMR3) |
| Enhanced CCP | 2 ECCP modules |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Package | 28-SOIC (300 mil) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC18F2480-I/SO Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, internal pull-up |
| Pin 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| Pin 4 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| Pin 5 | RA3/AN3 — PORTA bit 3 / Analog input 3 |
| Pin 6 | RA4/T0CKI — PORTA bit 4 / Timer 0 clock input |
| Pin 7 | RA5/AN4 — PORTA bit 5 / Analog input 4 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI — Crystal/Resonator input or external clock in |
| Pin 10 | OSC2/CLKO — Crystal/Resonator output or clock out |
| Pin 11 | RC0/T1OSO — PORTC bit 0 / Timer 1 oscillator output |
| Pin 12 | RC1/T1OSI — PORTC bit 1 / Timer 1 oscillator input |
| Pin 13 | RC2/CCP1 — PORTC bit 2 / Enhanced CCP1 output |
| Pin 14 | RC3/SCK/SCL — PORTC bit 3 / SPI clock or I2C clock |
| Pin 15 | RC4/SDI/SDA — PORTC bit 4 / SPI data in or I2C data |
| Pin 16 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 17 | RC6/TX/CK — PORTC bit 6 / USART async TX or sync clock |
| Pin 18 | RC7/RX/DT — PORTC bit 7 / USART async RX or sync data |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply (4.2-5.5 V) |
| Pin 21 | RB0/INT0 — PORTB bit 0 / External interrupt 0 |
| Pin 22 | RB1/INT1 — PORTB bit 1 / External interrupt 1 |
| Pin 23 | RB2/CANTX — PORTB bit 2 / ECAN TX output |
| Pin 24 | RB3/CANRX — PORTB bit 3 / ECAN RX input |
| Pin 25 | RB4 — PORTB bit 4 (interrupt-on-change) |
| Pin 26 | RB5 — PORTB bit 5 (interrupt-on-change) |
| Pin 27 | RB6/ICSPCLK — PORTB bit 6 / ICSP clock |
| Pin 28 | RB7/ICSPDAT — PORTB bit 7 / ICSP data |
Typical Applications
PIC18F2480-I/SO is suitable for 6 applications: Industrial CAN Node, Automotive Body Electronics, Industrial Sensor Network, Building Automation Gateway, HVAC Climate Controller, Battery-Powered Data Logger.
Industrial CAN Node
The PIC18F2480's ECAN (CAN 2.0B Active) peripheral and industrial temperature grade make it a strong fit for industrial CAN nodes such as HVAC controllers, factory-floor sensor hubs and building-automation gateways. The 16 KB Flash supports substantial protocol stacks including CANopen, while the 768-byte RAM is sufficient for typical PDO/SDO buffering. Placed as the master on the bus alongside an MCP2551 transceiver, the part delivers 1 Mbit/s throughput at 40 MHz for deterministic control loops. Reference design: PIC18F2480 + MCP2551 forms a complete CAN node used in DeviceNet and CANopen slave assemblies.
Recommended
Automotive Body Electronics
The PIC18F2480-I/SO is widely used in automotive aftermarket body-electronics modules such as window controllers, seat modules and lighting drivers thanks to its wide 4.2-5.5 V supply tolerance and the rugged 28-SOIC industrial-temperature package. The on-chip ECAN peripheral integrates the bus controller directly, reducing PCB area versus external CAN controllers, while the 16 KB Flash supports AUTOSAR-style or proprietary body modules. Designers should note this part is industrial-grade and not AEC-Q100 rated; for OEM-grade automotive designs use the automotive-qualified PIC18F2580 family.
Recommended
Industrial Sensor Network
Industrial sensor network nodes benefit from the PIC18F2480's combination of 8-channel 10-bit ADC, USART, MSSP (SPI/I2C) and ECAN bus, all in a single 28-pin IC. The 40 MHz CPU at 10 MIPS easily handles concurrent ADC sampling and CAN message pre-processing for distributed I/O blocks. Reference designs demonstrate its use in 4-20 mA loop-powered sensors where the nanoWatt sleep mode reduces quiescent current to under 1 uA between transmissions, making it well suited to battery or loop-powered field devices.
Recommended
Building Automation Gateway
Building-automation gateways use the PIC18F2480-I/SO to aggregate sensor data on RS-485, I2C or SPI sub-nets and forward it over a CAN backbone to a central controller. The part's two USARTs and MSSP (SPI/I2C) provide three independent serial buses, while the ECAN peripheral transports the aggregated data with hardware acceptance filtering. Its industrial -40C to +85C temperature range and 4.2-5.5 V supply tolerance suit rooftop and basement equipment enclosures.
Recommended
HVAC Climate Controller
HVAC climate controllers leverage the PIC18F2480's 10-bit ADC for temperature/humidity feedback, the two ECCP modules for fan motor PWM control, and the ECAN peripheral for inter-zone communication in multi-zone commercial systems. The 16 KB Flash supports PID control plus MODBUS/CANopen stacks, and the industrial temperature rating handles rooftop-unit environments. Designers pair it with a TRIAC driver to switch heater banks or a brushless DC motor controller for variable-speed blowers.
Recommended
Battery-Powered Data Logger
Industrial data-logger and telemetry modules with battery or solar power take advantage of the PIC18F2480's nanoWatt technology, which drops the sleep current to sub-1 uA typical between ADC sampling intervals. The 256-byte EEPROM can store calibration constants locally, while the 768-byte RAM buffers ADC samples before CAN transmission. With a 40 MHz clock, the part can wake, sample, CAN-publish and return to sleep within hundreds of microseconds, maximising battery life for remote telemetry applications.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F2480-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F2480-E/SO | PIC18F2580-I/SO | PIC18F2431-I/SO | PIC18F2455-I/SO | PIC18F2423-I/SO |
|---|---|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC | 28-SOIC | 28-SOIC | 28-SOIC | 28-SOIC |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 16 KB | 16 KB | 32 KB | 16 KB | 24 KB | 8 KB |
| Data RAM | 768 bytes | 768 bytes | 1.5 KB | 768 bytes | 2 KB | 512 bytes |
| ECAN/CAN Peripheral | Yes (CAN 2.0B Active) | Yes | Yes | No | No (USB instead) | No |
| Maximum CPU Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 48 MHz | 40 MHz |
| A/D Converter | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 10 channels | 12-bit, 8 channels |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
Key Differentiators
- Integrated ECAN peripheral on 28-pin footprint (vs PIC18F2431-I/SO)
- Lower power with nanoWatt technology (vs PIC18F2580-I/SO)
- Industrial temperature grade at -40C to +85C in SOIC (vs PIC18F2480-E/SO)
Design Notes
Place 0.1 uF ceramic decoupling capacitors on both VDD pins and a single 10 uF bulk capacitor within 25 mm of the package. The PIC18F2480 has both digital VDD (pin 20) and per-port VDD/VSS pins; powering all VDD pins is required even if the corresponding port is unused. Use a low-ESR ceramic for the 0.1 uF caps and a tantalum or aluminium polymer for bulk; verify ripple below 50 mVpk under 40 MHz CPU load to avoid ADC error.
Route the ECAN TX/RX pair (RB2/RB3) as a 100-ohm differential pair with 4 mm maximum length mismatch to the MCP2551 transceiver; keep traces well clear of the oscillator (OSC1/OSC2) to avoid coupling noise into the timebase. The 28-SOIC package has reasonable thermal performance but consider a copper pour on the bottom layer under pins 8/19/20 to wick heat; this is especially important if the part will be sourcing large currents through PORTB.
Do not exceed 40 MHz at the OSC1 pin - the Flash read path will corrupt and instructions will be mis-executed. Always configure the Configuration Words (CONFIG1H through CONFIG6H) before any code executes, especially the watchdog (WDT), brown-out reset (BOR) and oscillator (FOSC) bits. Leaving the MCLR pin floating on a 28-SOIC layout will cause intermittent resets: use the internal weak pull-up configuration or a 10 kohm external pull-up.
When using the 10-bit ADC, add a 100 ohm series resistor and a 100 nF capacitor at the analogue input to form a 1 MHz anti-alias filter; the ADC sample-and-hold requires a settling time of about 1.7 us at 40 MHz. For ADC measurements that share a digital I/O pin, configure the digital input buffer as analog via the ANSEL register - failing to do so injects digital switching noise into the ADC result.
Compliance Information
Microchip PIC18F2480-I/SO is RoHS/REACH compliant and lead-free per DigiKey/Mouser distributor listings. The industrial-grade -I temperature variant is not AEC-Q100 qualified; choose PIC18F2580-E/SO or other automotive-grade PIC18 family members for AEC-Q100 applications.
