PIC18LF2610T-I/SO - 8-bit 40MHz PIC MCU 64KB Flash | Microchip
MPN: PIC18LF2610T-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.65 | $76.50 |
| 100 | $6.8 | $680.00 |
| 500 | $5.95 | $2,975.00 |
| 1,000 | $5.2 | $5,200.00 |
PIC18LF2610T-I/SO Overview
What is a PIC18 microcontroller? A PIC18 is an 8-bit RISC microcontroller from Microchip Technology built on an enhanced Harvard architecture with 16-bit instructions. PIC18F devices sit in the middle of the Microchip 8-bit portfolio (above baseline PIC10/12/16 and below the 16-bit dsPIC/PIC24 and 32-bit PIC32 lines), combining cost-effective 8-bit processing with rich peripherals, Flash program memory, and nanoWatt power-saving modes for industrial and consumer embedded designs.
Key features include 64 KB of self-programmable Flash for in-field firmware updates, 3.8 KB of data SRAM, a hardware USART supporting RS-232/RS-485, an MSSP module configurable as SPI or I2C (master or slave), a 10-bit ADC with up to 8 input channels, two 8-bit timers plus three 16-bit timers, and nanoWatt Technology with multiple idle/sleep modes for low-power battery applications. The /SO suffix indicates a wide-body 300-mil SOIC package, while the T suffix denotes tape-and-reel packaging for high-volume SMT assembly.
The architecture uses a 16-bit instruction word with an 8-bit data path and a 31-level hardware stack, allowing deterministic interrupt response and C-compiler-friendly code density. The LF suffix designation extends VDD operation down to 2.0 V, making the part suitable for 2x AA battery or 3.3 V regulated-rail designs while remaining software- and pin-compatible with the standard F (PIC18F2610) variant running at 4.2 V to 5.5 V.
Typical applications include industrial control modules, automotive body and HVAC subsystems, low-power sensor nodes, USB-to-serial bridges, brushless-DC motor controllers, white-goods user interfaces, and consumer appliances where a 5 V-tolerant 8-bit MCU with on-chip Flash simplifies BOM and firmware lifecycle.
Designers should note that code developed for PIC18F2610 ports directly to PIC18LF21 because both share peripherals and pinout, but FFS (Fail-Safe Clock Monitor) and two-speed start-up modes behave differently in LF devices at low VDD. The 28-SOIC package has a thermal resistance theta-JA of approximately 80 C/W, so continuous 40 MHz operation at 85 C ambient requires verifying that peripheral drive current remains within Microchip derating curves.
This page synthesizes distributor pricing, drop-in alternatives, application guidance, and design notes that go beyond the manufacturer datasheet summary, giving engineers a single decision-grade reference.
Drop-in alternatives for PIC18LF2610T-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 PIC18LF2610T-I/SO (same form factor and footprint) — differing in Package, ADC, Program Memory (Flash), Core Architecture, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18LF2610-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F2610T-I/SO
✅ Drop-In✓ In Stock
$4.65 / Unit
View Datasheet →PIC18F2610-I/SO
✅ Drop-In✓ In Stock
$3.95 / Unit
View Datasheet →PIC18LF25K50-I/SO
✅ Drop-In✓ In Stock
$2.15 / Unit
View Datasheet →PIC18LF25K22-I/SO
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC18LF2525T-I/SO
✅ Drop-In✓ In Stock
$5.42 / Unit
View Datasheet →PIC18LF2610T-I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC18 enhanced RISC (Harvard) |
| Family | PIC18F |
| Maximum CPU Frequency | 40 MHz |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data SRAM | 3.8 KB |
| Operating Voltage (VDD) | 2.0 V to 5.5 V (LF variant) |
| I/O Pins | 25 |
| ADC | 10-bit, up to 8 channels |
| Communication Interfaces | 1x USART (RS-232/RS-485), 1x MSSP (SPI/I2C) |
| Timers | 2x 8-bit + 3x 16-bit |
| Package | 28-pin SOIC (SO, 300-mil) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Packaging Format | Tape and Reel (T suffix) |
| RoHS Status | Compliant |
PIC18LF2610T-I/SO Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active-low |
| 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 / VREF- |
| Pin 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / VREF+ |
| Pin 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin 7 | RA5/AN4 — PORTA bit 5 / analog input 4 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKIN — Oscillator crystal input / external clock |
| Pin 10 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| Pin 11 | RC0/T1OSO — PORTC bit 0 / Timer1 oscillator output |
| Pin 12 | RC1/T1OSI — PORTC bit 1 / Timer1 oscillator input |
| Pin 13 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM1 |
| Pin 14 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 15 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 16 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 17 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| Pin 18 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage (2.0 V to 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/INT2 — PORTB bit 2 / external interrupt 2 |
| Pin 24 | RB3/CCP2 — PORTB bit 3 / Capture-Compare-PWM2 |
| Pin 25 | RB4 — PORTB bit 4 |
| Pin 26 | RB5/PGM — PORTB bit 5 / LVP programming |
| Pin 27 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pin 28 | RB7/PGD — PORTB bit 7 / ICSP data |
Typical Applications
PIC18LF2610T-I/SO is suitable for 6 applications: Industrial Sensor Hub, Automotive Body and HVAC Modules, Battery-Powered Remote Control / IoT Node, White-Goods User Interface, USB-to-Serial Bridge, Brushless DC Motor Controller.
Industrial Sensor Hub
The PIC18LF2610T-I/SO is well-suited for industrial sensor hubs that aggregate analog and digital sensor data from a 3.3 V regulated rail. Its 10-bit ADC with up to 8 input channels digitizes temperature, pressure, and flow signals directly, while the MSSP port connects to I2C/SPI sensors. The 64 KB Flash accommodates sensor-fusion and calibration routines, and the nanoWatt sleep modes drop quiescent current below 1 uA in idle, enabling 2x AA battery backup. Industrial control uses line-bounded sensor nodes on a factory floor, with the 8-bit RISC core providing deterministic interrupt handling for time-critical control loops.
Recommended
Automotive Body and HVAC Modules
The PIC18LF2610T-I/SO can be deployed in non-safety automotive body electronics such as HVAC blend-door controllers, mirror-position drivers, and lighting control modules. The enhanced USART supports LIN (Local Interconnect Network) bus communication, a de-facto standard for in-vehicle body networks, while the PWM outputs on the 16-bit timers drive DC motor bridges. Although not AEC-Q100 qualified, the -40 C to +85 C industrial temperature range handles cabin and engine-bay-adjacent environments. Automotive body uses microcontrollers that command actuator positions while streaming diagnostics over LIN to a central body controller, with the 8-bit core and 64 KB Flash comfortably holding protocol stacks and PID loops.
Recommended
Battery-Powered Remote Control / IoT Node
The PIC18LF2610T-I/SO is well matched to battery-powered IoT nodes running from two AA cells because the LF variant extends VDD down to 2.0 V. NanoWatt Technology provides multiple idle and sleep modes that drop current consumption to under 1 uA with peripheral wake-up, while the 40 MHz core wakes and services interrupts in microseconds. The MSSP and USART interfaces support Sub-GHz radio modules over SPI, and the 64 KB Flash stores OTA update images with a bootloader. Portable uses a wireless sensor node that sleeps most of the time, waking periodically to read sensors and transmit telemetry, and the PIC18LF21's low-voltage operation maximizes battery life by draining cells down to 1.8 V.
Recommended
White-Goods User Interface
The PIC18LF2610T-I/SO drives user-interface panels in white goods such as washing machines, dishwashers, and microwave ovens where cost-sensitive 8-bit processing is appropriate. Its PWM outputs drive triac-controlled AC loads for motor speed and heating elements, while GPIO pins scan key matrices and LED/LCD status displays. The 10-bit ADC reads water-level sensors and thermistors for closed-loop control, and the Flash memory holds appliance-specific firmware. White-goods uses microcontrollers to run finite-state machine appliance logic with deterministic timing, where the 28-SOIC package simplifies single-sided PCB assembly and the wide VDD range supports both 3.3 V and 5 V signal environments.
Recommended
USB-to-Serial Bridge
The PIC18LF2610T-I/SO serves as the host side of a USB-to-UART bridge when paired with an external USB peripheral controller such as the MCP2200 or MCP2221A. The MCU streams data through its enhanced USART, applies protocol encapsulation, and uses its MSSP port to handle configuration EEPROM and indicator LEDs. While the LF21 itself does not have a USB peripheral, its 40 MHz core and 64 KB Flash provide ample bandwidth to format data streams from the USB IC. Networking bridges use a microcontroller to repackage protocols between interfaces, and this design pattern is common in industrial gateways where legacy RS-485 equipment must talk to modern USB hosts.
Recommended
Brushless DC Motor Controller
The PIC18LF2610T-I/SO implements trapezoidal or sinusoidal commutation algorithms for small brushless DC motors in fans, pumps, and pumps used in appliance and industrial equipment. Three PWM channels on the 16-bit timers drive the high-side and low-side FETs of a 3-phase inverter, the ADC samples back-EMF or current-sense signals for closed-loop control, and the 64 KB Flash stores motor-tuning tables. The 28-SOIC package exposes enough GPIO for fault inhibit, Hall-sensor inputs, and tachometer output. Motor-control uses a microcontroller to switch FETs in a deterministic sequence with microsecond accuracy, and the LF21's deterministic interrupt latency and PWM resolution are sufficient for low- to mid-speed BLDC applications up to a few kW.
Recommended
Recommended Products Summary
Engineering reference data for PIC18LF2610T-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18LF2610-I/SO | PIC18F2610T-I/SO | PIC18LF25K50-I/SO | PIC18LF25K22-I/SO | PIC18LF2525T-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SOIC-28 (SO) | SOIC-28 (SO) - same | SOIC-28 (SO) - same | SOIC-28 (SO) - same | SOIC-28 (SO) - same | SOIC-28 (SO) - same |
| CPU Frequency | 40 MHz | 40 MHz | 40 MHz | 48 MHz | 64 MHz | 40 MHz |
| Flash Memory | 64 KB | 64 KB | 64 KB | 32 KB (-50%) | 32 KB (-50%) | 48 KB (-25%) |
| RAM | 3.8 KB | 3.8 KB | 3.8 KB | 2 KB (-47%) | 2 KB (-47%) | 3.4 KB (-11%) |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 4.2 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 2.0 V to 5.5 V |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| USB Peripheral | No | No | No | Yes (USB 2.0 full-speed) | No | No |
| Lifecycle Status | Active | Active | Active | Active | Active | Active |
Key Differentiators
- Low-voltage VDD operation down to 2.0 V in the LF variant (vs PIC18F2610T-I/SO)
- Same 28-SOIC footprint as 28-pin PIC18 K-series migration parts (vs PIC18LF25K22-I/SO)
- 64 KB Flash + 3.8 KB RAM is generous for an 8-bit MCU (vs PIC18LF25K50-I/SO)
Design Notes
The LF variant extends VDD operation to 2.0 V, but maximum CPU frequency is derated at low VDD. Per Microchip datasheet DS39626E electrical characteristics, the PIC18LF21 family runs at 40 MHz only when VDD is 4.0 V to 5.5 V; from 2.0 V to 4.0 V the maximum is 4 MHz (or 10 MHz with PLL disabled). For applications that swing across the full VDD range, configure FOSC with the two-speed start-up bit (IESO = 1) so the MCU boots on internal RC and switches to the crystal only after VDD crosses the high threshold.
Decouple VDD/VSS with a 100 nF ceramic capacitor placed within 5 mm of the supply pin, plus a 10 uF bulk capacitor on the same VDD trace. The 28-SOIC package has only one VDD pin (pin 20) and one VSS pin (pin 19) for digital logic, plus a VSS pin (pin 8) for the oscillator block. Use a single ground pour stitched with vias on both VSS pins to keep switching noise out of the analog ADC references. Place the 32.768 kHz watch-crystal traces short and symmetric if Timer1 is used for RTC, and keep the MCLR pull-up within 100 mm of the IC.
Do not assume the PIC18LF2610 firmware will run unchanged on the PIC18F2610 if it uses the Fail-Safe Clock Monitor (FSCM) or two-speed start-up at low VDD; the LF variant has slightly different FSCM trip points. Always confirm the configuration bits (CONFIG1L, CONFIG1H) match the target die revision. Also, the PIC18LF2610T-I/SO ships without a unique ID in the same format as newer PIC18FxxKxx devices, so legacy code that reads device-id for firmware-binding must use the PIC18LF2610 ID registers (0x0E00-0x0E07) rather than K-series dual-maser-device identifiers.
Compliance Information
RoHS compliant per Microchip product page and distributor listings. Not AEC-Q100 qualified - choose AEC-Q100 graded PIC18 K-series for automotive safety applications. Industrial -40 C to +85 C temperature range.
