PIC18LF2610-I/SP - 8-Bit MCU, 64KB Flash, 28-SPDIP | Microchip
MPN: PIC18LF2610-I/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.6 | $8.60 |
| 10 | $7.78 | $77.80 |
| 100 | $6.94 | $694.00 |
| 500 | $6.21 | $3,105.00 |
| 1,000 | $5.5 | $5,500.00 |
PIC18LF2610-I/SP Overview
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU core, non-volatile program memory (Flash), volatile data memory (SRAM), peripherals, and I/O into one package. PIC18F-series parts belong to the broader PIC microcontroller family (PIC -> microcontroller -> embedded processor -> semiconductor IC). The 8-bit class remains widely deployed in cost-sensitive, low-power, deterministic-control applications where 32-bit MCUs would be over-spec and the higher unit cost unjustified.
Key features of the PIC18LF2610-I/SP include nanoWatt Technology for ultra-low-power sleep modes, a 10-bit Analog-to-Digital Converter (ADC) with up to 13 input channels, multiple Enhanced USART and MSSP (SPI/I2C) peripherals, capture/compare/PWM (CCP/ECCP) modules, a hardware 8x8 multiplier, and 25 digital I/O pins with interrupt-on-change support. The architecture is Harvard, with separate program and data buses, plus a 16-bit instruction word and 8-bit data path that yield high code density.
The PIC18 core is built on a modified Harvard architecture with 16-bit instruction words and an 8-bit data path, achieving up to 10 MIPS throughput. Its nanoWatt Technology supports run, idle, and several sleep modes with wake-up on interrupt, plus software-controlled oscillator switching for dynamic power/performance tuning. The integrated ADC, comparators, and PWM peripherals allow most closed-loop control tasks to be handled without external ICs.
Typical applications include industrial sensor interface boards, low-power handheld data loggers, building automation controllers, automotive body-electronics modules, battery-powered instrumentation, and educational/prototyping platforms where legacy 28-pin through-hole footprints simplify assembly. The wide 2.0 V-5.5 V supply tolerance also suits solar or energy-harvesting subsystems.
When designing with this MCU, ensure decoupling (100 nF plus 10 µF bulk) is placed within a few millimetres of VDD/VSS, and that MCLR is pulled high through a 10 kΩ resistor with a 100 nF cap to ground. The ISP (In-System Programming) pins require isolation resistors if the application drives them externally during programming.
This page synthesizes distributor pricing, drop-in replacement options, and engineering design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for PIC18LF2610-I/SP — 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 PIC18LF2610-I/SP (same form factor and footprint) — differing in Core Architecture, Package, ADC, Operating Temperature, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18LF2620-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F2610-I/SP
✅ Drop-In✓ In Stock
$4.95 / Unit
View Datasheet →PIC18F2620-I/SP
✅ Drop-In✓ In Stock
$4.75 / Unit
View Datasheet →PIC18LF2510-I/SP
✅ Drop-In✓ In Stock
$3.74 / Unit
View Datasheet →PIC18LF2520-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F25K22-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF2610-I/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 8-bit RISC (Harvard) |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data RAM | 3968 bytes |
| Data EEPROM | 1024 bytes |
| Maximum CPU Clock | 40 MHz (10 MIPS) |
| Operating Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 25 |
| ADC | 10-bit, up to 13 input channels |
| Package | 28-pin SPDIP (Skinny Plastic DIP, through-hole) |
| Mounting Type | Through-Hole |
| Temperature Range | -40 °C to +85 °C (Industrial) |
| Operating Voltage Variants | 2.5 V / 3.3 V / 5 V |
| Communication Peripherals | 1x EUSART, 1x MSSP (SPI / I2C) |
| PWM Modules | 2x CCP / ECCP |
| Timers | 4 (Timer0/1/2/3) |
| Instruction Set | 75 instructions, 16-bit opcode, 8-bit data path |
| Hardware Multiplier | 8x8 single-cycle |
| Power-Saving Features | nanoWatt Technology, multiple low-power sleep modes |
| Programming Interface | ICSP (In-Circuit Serial Programming) via PGC/PGD/MCLR |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC18LF2610-I/SP Pin Configuration
| Pin 1 | MCLR — Master Clear (Reset) input, active low |
| Pin 2 | RA0 — Digital I/O / AN0 analog input |
| Pin 3 | RA1 — Digital I/O / AN1 analog input |
| Pin 4 | RA2 — Digital I/O / AN2 / VREF- |
| Pin 5 | RA3 — Digital I/O / AN3 / VREF+ |
| Pin 6 | RA4 — Digital I/O / T0CKI / AN4 |
| Pin 7 | RA5 — Digital I/O / AN5 / SS |
| Pin 8 | RE0 — Digital I/O / AN6 / RD |
| Pin 9 | RE1 — Digital I/O / AN7 / WR |
| Pin 10 | RE2 — Digital I/O / AN8 / CS |
| Pin 11 | VDD — Positive supply voltage (2.0 V to 5.5 V) |
| Pin 12 | VSS — Ground |
| Pin 13 | OSC1 — Crystal oscillator input / external clock |
| Pin 14 | OSC2 — Crystal oscillator output |
| Pin 15 | RC0 — Digital I/O / T1OSO / T1CKI |
| Pin 16 | RC1 — Digital I/O / CCP2 / T1OSI |
| Pin 17 | RC2 — Digital I/O / CCP1 / P1A |
| Pin 18 | RC3 — Digital I/O / SCL / SCK |
| Pin 19 | RD0 — Digital I/O / PSP0 |
| Pin 20 | RD1 — Digital I/O / PSP1 |
| Pin 21 | RD2 — Digital I/O / PSP2 |
| Pin 22 | RD3 — Digital I/O / PSP3 |
| Pin 23 | RC4 — Digital I/O / SDA / SDI |
| Pin 24 | RC5 — Digital I/O / SDO |
| Pin 25 | RC6 — Digital I/O / TX / CK |
| Pin 26 | RC7 — Digital I/O / RX / DT |
| Pin 27 | RD4 — Digital I/O / PSP4 |
| Pin 28 | RD5 — Digital I/O / PSP5 / P1B |
Typical Applications
PIC18LF2610-I/SP is suitable for 6 applications: Industrial Sensor Interface Board, Battery-Powered Data Logger, Building Automation Controller, Automotive Body Electronics Module, Educational Microcontroller Trainer, Low-Power Remote Sensor Node.
Industrial Sensor Interface Board
The PIC18LF2610-I/SP fits industrial sensor-interface boards because of its 10-bit ADC with up to 13 input channels and 25 digital I/O pins, which directly accept inputs from thermocouples, RTDs, 4-20 mA loops, and discrete sensors without external multiplexers. The 2.0 V-5.5 V LF voltage range supports 3.3 V or 5 V field rails, while the 40 MHz / 10 MIPS throughput comfortably handles Modbus RTU framing on the EUSART at 115 200 baud alongside scanning up to 13 ADC channels every 10 ms. Placed on a 28-SPDIP footprint with through-hole pinout, it survives hand-solder rework in field-replacement scenarios. Per the Microchip PIC18F2610 datasheet DS39602F, the MSSP can simultaneously drive SPI sensors while the EUSART handles bus communication, and the 3968-byte RAM is large enough to buffer a full Modbus transaction table.
Recommended
Battery-Powered Data Logger
The PIC18LF2610-I/SP suits battery-powered data loggers thanks to nanoWatt Technology sleep modes that drop supply current below 1 µA with the RTCC active, enabling multi-year life on a single 3.6 V LiSOCl2 cell. Its 1024-byte EEPROM provides 100K-cycle endurance for storing sensor calibration tables without external memory. The 10-bit ADC captures analog inputs at programmable rates, and 64 KB Flash accommodates typical 32 KB logger firmware plus a small file system. Compared with a 32-bit Cortex-M0 logger, the PIC18 architecture has deterministic interrupt latency under 200 ns, which matters when timestamping events with the 16-bit CCP capture timer.
Recommended
Building Automation Controller
The PIC18LF2610-I/SP supports building-automation controllers that must read multiple analog sensors (temperature, humidity, CO2, light) and drive relays or 0-10 V outputs to HVAC actuators. Its 25 I/O pins drive up to 5 relay outputs and 13 analog inputs simultaneously, while the EUSART links to a central BMS over RS-485 with hardware CRC16. With nanoWatt Technology, the MCU idle current falls under 5 µA typical, allowing 24/7 always-on operation from a small 5 V wall adapter. The 28-SPDIP package is easy to hand-prototype, which is useful for low-volume BMS retrofits in legacy buildings where surface-mount-only parts would complicate field service.
Recommended
Automotive Body Electronics Module
The PIC18LF2610-I/SP fits automotive body-electronics modules such as door-lock controllers, seat-position memory, and climate-control panels where 25 I/O, 10-bit ADC, and 64 KB Flash handle multiple switch-scan matrices and PWM outputs. With the LF voltage range, it operates from the 12 V battery rail pre-regulated to 5 V or directly at 3.3 V for newer designs. For under-hood applications, designers should select the -E (extended temperature, -40 °C to +125 °C) variant rather than -I; the -I/SP is appropriate for cabin modules only. Per Microchip's automotive-grade PIC18 datasheet supplements, firmware built for this part can be migrated to PIC18F26K80 with no peripheral driver changes.
Recommended
Educational Microcontroller Trainer
The PIC18LF2610-I/SP is widely used in university microcontroller courses and embedded-systems labs because its 28-SPDIP package fits standard 28-pin DIP sockets, allowing students to remove and replace the chip without soldering. The PIC18 instruction set with 75 opcodes is well-documented in textbooks (Mazidi, Peatman), and MPLAB X IDE with the XC8 compiler is free for educational use. The ICSP interface (PGC/PGD/MCLR/VPP) supports in-circuit programming through a PICkit 3 or PICkit 4, so students see immediate feedback when iterating firmware. According to the Microchip academic program, this part is on the recommended list for EE/CE curricula because of its balance of memory, peripherals, and breadboard compatibility.
Recommended
Low-Power Remote Sensor Node
The PIC18LF2610-I/SP is well suited to remote sensor nodes that sleep most of the time and wake briefly to transmit sensor readings over a sub-GHz radio link. nanoWatt Technology sleep modes drop current under 1 µA with RTCC wake, while the 64 KB Flash accommodates full sensor-driver, MAC-layer, and application stack without external memory. The 10-bit ADC combined with internal bandgap reference supports ratiometric sensor measurements on a 3.6 V primary cell. Compared with an ARM Cortex-M0+ alternative, the PIC18LF2610 offers simpler interrupt handling and a shorter learning curve for the firmware team, while matching the typical 1-2 mA active current.
Recommended
Recommended Products Summary
Engineering reference data for PIC18LF2610-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18LF2620-I/SP | PIC18F2610-I/SP | PIC18F2620-I/SP | PIC18LF2510-I/SP | PIC18F25K22-I/SP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same |
| Flash Memory | 64 KB | 128 KB | 64 KB | 128 KB | 32 KB | 32 KB |
| RAM | 3968 B | 4096 B | 3968 B | 4096 B | 1536 B | 1638 B |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 2.0 V to 5.5 V | 1.8 V to 5.5 V |
| Max Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 64 MHz |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 12-bit |
| I/O Pins | 25 | 25 | 25 | 25 | 25 | 24 |
| EEPROM | 1024 B | 1024 B | 1024 B | 1024 B | 256 B | 256 B |
Key Differentiators
- Double the Flash vs PIC18F25K22 (vs PIC18F25K22-I/SP)
- Wider operating voltage than PIC18F2610 (vs PIC18F2610-I/SP)
- Lower cost and same pinout vs PIC18LF2620 (vs PIC18LF2620-I/SP)
Design Notes
Place a 100 nF decoupling capacitor within 5 mm of each VDD pin and a single 10 µF bulk capacitor near the supply entry point. For battery-powered applications using the LF variant, switch the MCU into Sleep mode between sensor reads - typical sleep current is below 1 µA with RTCC active. Per Microchip's nanoWatt Technology application note (AN879), configure the FOSC and IDLEN bits carefully to balance wake-up latency against average current.
Keep the ICSP connector or test-pad pattern separate from analog signal traces so the PGC/PGD lines can reach the MCU without crossing sensitive analog inputs. The MCLR pin must have a 10 kΩ pull-up to VDD and a 100 nF cap to ground, with the cap placed within 5 mm of the pin to filter fast ESD events. For breadboard prototyping, ensure the 28-SPDIP socket accepts the 0.1 inch pin pitch.
Do not assume 5 V tolerance on I/O pins - per the PIC18LF2610 datasheet, RA0-RA5 and the PORTB pins are 5.5 V tolerant only when configured as digital inputs, but analog-input shared pins should not exceed VDD. When migrating from PIC18F2610 to the LF variant, double-check that the application does not operate below 4.2 V, because the LF part behaves differently at 2.0 V-4.2 V than the standard F part.
Route the crystal traces (OSC1/OSC2) symmetrically with ground guard rings to avoid radiated noise coupling into the analog ADC inputs. Place the crystal within 10 mm of the OSC pins and keep its traces short. For high-ADC-accuracy applications, use the dedicated AVdd and AVss pins where available and decouple them with a 10 µH ferrite plus 100 nF cap.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications use PIC18F26K80 or equivalent automotive-grade parts. Lead-free (Pb-free) and matte-tin finish per JESD97.
