PIC18LF4410T-I/ML - 8-bit PIC MCU, 16KB Flash, 40MHz, 44-QFN | Microchip
MPN: PIC18LF4410T-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.9 | $5.90 |
| 10 | $5.32 | $53.20 |
| 100 | $4.74 | $474.00 |
| 500 | $4.25 | $2,125.00 |
| 1,000 | $3.79 | $3,790.00 |
PIC18LF4410T-I/ML Overview
An 8-bit PIC microcontroller is a Harvard-architecture RISC processor widely used in embedded control. PIC microcontrollers (MCU -> microcontroller -> embedded controller -> semiconductor) integrate CPU, Flash, RAM, peripherals, and interrupt logic on a single die, enabling compact BOMs in motor control, sensor interfaces, and consumer appliances. The 'LF' in the part number designates the extended low-voltage family, which retains full speed down to 2.0 V versus the standard F family that runs at 4.2 V minimum.
Key features include 16 KB Flash (8K x 16 instructions), 768 bytes RAM, 256 bytes EEPROM, a 13-channel 10-bit ADC, two analog comparators, two CCP/ECCP modules, a 16-bit timer/counter, and three 8-bit timers. NanoWatt power management provides Idle and Sleep modes with on-the-fly oscillator switching. The device also includes a programmable brown-out reset, a watchdog timer with its own on-chip RC oscillator, and an ICD/ICSP in-circuit debug interface accessible through dedicated RB6/RB7 pins.
The 44-QFN (ML) package offers a compact 8x8 mm footprint with an exposed thermal pad that reduces junction-to-board thermal resistance and improves high-current GPIO performance. Microchip's PIC18 instruction set provides single-cycle execution for most instructions and a linear code space with hardware multiply, easing migration from smaller PIC16 designs. The 'T' suffix in the MPN denotes tape-and-reel packaging for high-volume assembly, while 'I/ML' indicates the industrial temperature range (-40 °C to +85 °C) and the QFN package code.
Typical applications include industrial sensor nodes, low-power IoT edge devices, consumer white goods, HVAC fan and blower control, lighting ballasts, and human-machine interface (HMI) panels. The combination of analog-rich peripherals (10-bit ADC, comparators) and low-voltage operation makes the PIC18LF4410 particularly suited to battery-powered or 3.3 V regulated systems that previously required the 5 V-only F variant.
When designing with this MCU, place decoupling capacitors (100 nF + 10 uF) within 5 mm of each VDD/VSS pair and bond the exposed pad (EP) to a continuous ground plane to meet the QFN thermal and electrical requirements. The PIC18LF4410 is pin-compatible with the PIC18LF4610 (96 KB Flash) and PIC18LF4510 (32 KB Flash) for footprint-conservative memory upgrades.
This page synthesizes distributor pricing, drop-in alternatives from the PIC18LF family, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC18LF4410T-I/ML — 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 PIC18LF4410T-I/ML (same form factor and footprint) — differing in ADC, Core Architecture, Operating Temperature, Program Memory (Flash), Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18LF4410-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF4510-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.62 / Unit
View Datasheet →PIC18LF4610-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.12 / Unit
View Datasheet →PIC18LF4620-I/ML
✅ Drop-In✓ In Stock
$8.65 / Unit
View Datasheet →PIC18F4410-I/ML
✅ Drop-In✓ In Stock
$4.36 / Unit
View Datasheet →PIC18LF4410T-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC (Harvard) |
| Family | PIC18LF (low-voltage, 2.0 V to 5.5 V) |
| Program Memory (Flash) | 16 KB (8K x 16 words) |
| Data RAM | 768 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Clock | 40 MHz |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 13-channel, 10-bit |
| Analog Comparators | 2 |
| CCP / ECCP Modules | 1 CCP + 1 ECCP |
| Timers | 1 x 16-bit + 3 x 8-bit |
| Communication Peripherals | 1 x USART, 1 x MSSP (I2C/SPI), 1 x AUSART (sync) |
| Package | 44-pin QFN (ML), 8 x 8 mm, with exposed pad |
| Operating Temperature | -40 °C to +85 °C (industrial) |
| Mounting Type | Surface Mount (Tape & Reel) |
| MSL Level | 3 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
| In-Circuit Debug | ICD / ICSP (RB6/RB7) |
PIC18LF4410T-I/ML Pin Configuration
| Pin 1 | RA2 — PORTA digital I/O / analog AN2 |
| Pin 2 | RA3 — PORTA digital I/O / analog AN3 / VREF+ |
| Pin 3 | RA4 — PORTA digital I/O / analog AN4 |
| Pin 4 | RA5 — PORTA digital I/O / analog AN5 / SS |
| Pin 5 | VSS — Digital ground |
| Pin 6 | OSC1 — Crystal/oscillator input |
| Pin 7 | OSC2 — Crystal/oscillator output |
| Pin 8 | RA6 — PORTA digital I/O / oscillator output |
| Pin 9 | RA7 — PORTA digital I/O / oscillator input |
| Pin 10 | RC0 — PORTC digital I/O / T1CKI / CCP2 |
| Pin 11 | RC1 — PORTC digital I/O / CCP2 / ECCP2 |
| Pin 12 | RC2 — PORTC digital I/O / CCP1 / PWM1 |
| Pin 13 | RC3 — PORTC digital I/O / SCL / SCK |
| Pin 14 | RC4 — PORTC digital I/O / SDA / SDI |
| Pin 15 | RC5 — PORTC digital I/O / SDO |
| Pin 16 | RC6 — PORTC digital I/O / TX / CK |
| Pin 17 | RC7 — PORTC digital I/O / RX / DT |
| Pin 18 | VSS — Digital ground |
| Pin 19 | VDD — Positive digital supply |
| Pin 20 | RB0 — PORTB digital I/O / INT0 / AN12 |
| Pin 21 | RB1 — PORTB digital I/O / INT1 / AN10 |
| Pin 22 | RB2 — PORTB digital I/O / INT2 / AN8 |
| Pin 23 | RB3 — PORTB digital I/O / CCP2 / AN9 |
| Pin 24 | RB4 — PORTB digital I/O / AN11 |
| Pin 25 | RB5 — PORTB digital I/O / PGM |
| Pin 26 | RB6 — PORTB digital I/O / PGC (ICD clock) |
| Pin 27 | RB7 — PORTB digital I/O / PGD (ICD data) |
| Pin 28 | MCLR/VPP — Master clear / ICSP programming voltage |
| Pin 29 | AVSS — Analog ground |
| Pin 30 | AVDD — Analog positive supply |
| Pin 31 | RA1 — PORTA digital I/O / analog AN1 |
| Pin 32 | RA0 — PORTA digital I/O / analog AN0 |
| Pin 33 | RD0 — PORTD digital I/O / PSP0 |
| Pin 34 | RD1 — PORTD digital I/O / PSP1 |
| Pin 35 | RD2 — PORTD digital I/O / PSP2 |
| Pin 36 | RD3 — PORTD digital I/O / PSP3 |
| Pin 37 | RD4 — PORTD digital I/O / PSP4 |
| Pin 38 | RD5 — PORTD digital I/O / PSP5 |
| Pin 39 | RD6 — PORTD digital I/O / PSP6 / TX2 |
| Pin 40 | RD7 — PORTD digital I/O / PSP7 / RX2 |
| Pin 41 | RE0 — PORTE digital I/O / AN5 / RD |
| Pin 42 | RE1 — PORTE digital I/O / AN6 / WR |
| Pin 43 | RE2 — PORTE digital I/O / AN7 / CS |
| Pin 44 | VSS — Digital ground |
| Pin EP | EP — Exposed thermal pad - must be soldered to ground plane |
Typical Applications
PIC18LF4410T-I/ML is suitable for 6 applications: Industrial Sensor Interface Nodes, Battery-Powered IoT Edge Devices, HVAC Fan and Blower Motor Control, Consumer White Goods Control Boards, Lighting Ballasts and Dimmable LED Drivers, Human-Machine Interface (HMI) Panels.
Industrial Sensor Interface Nodes
The PIC18LF4410T-I/ML's 13-channel 10-bit ADC and 36 digital I/O lines provide enough analog and digital channels for multi-sensor interface boards reading 4-20 mA loops, thermistors, and digital switches. Its 2.0 V to 5.5 V supply range allows direct connection to 24 V industrial rails via a 3.3 V LDO downstream, while the 40 MHz core handles up to 10 MIPS for real-time filtering. The exposed thermal pad improves reliability in sealed industrial enclosures, and the -40 to +85 °C industrial temperature range tolerates factory-floor thermal stress. NanoWatt Sleep currents below 1 uA also suit remote sensor nodes that wake briefly to sample and transmit.
Recommended
Battery-Powered IoT Edge Devices
The PIC18LF4410T-I/ML is well-matched to battery-powered IoT edge nodes because the LF low-voltage family operates down to 2.0 V, enabling direct use of single-cell Li-ion or two-AA chemistries without a boost converter. NanoWatt Sleep plus on-the-fly oscillator switching between the 31 kHz internal LP oscillator and the 40 MHz primary lets the device wake, sample, transmit over UART/SPI, and return to sub-1 uA sleep within milliseconds. The 16 KB Flash accommodates over-the-air bootloader fragments plus application logic for BLE bridge or LoRaWAN stacks. The 44-QFN's 8x8 mm footprint plus exposed pad keeps PCB area minimal, supporting coin-cell or small Li-ion form factors.
Recommended
HVAC Fan and Blower Motor Control
The PIC18LF4410T-I/ML's Enhanced CCP (ECCP) module, 16-bit timer/counter, and 10-bit ADC make it suitable for closed-loop fan and blower motor control. The ECCP can drive PWM into a MOSFET bridge at frequencies up to 40 MHz instruction clock, while the ADC samples back-EMF or tachometer feedback for closed-loop RPM regulation. The 768-byte RAM accommodates a small speed-control state machine without taxing the Flash. Industrial temperature grade and surface-mount 44-QFN packaging also fit motor-control PCBAs behind the blower housing where airflow keeps the part within its thermal envelope.
Recommended
Consumer White Goods Control Boards
The PIC18LF4410T-I/ML targets appliance main-control boards in washing machines, dishwashers, refrigerators, and microwave ovens where its 36 I/O lines drive relays, triacs, keypads, and 7-segment or character LCDs. The PIC18 instruction set, single-cycle execution, and 10 MIPS performance run PID wash-cycle logic, pump timing, and user-interface scanning concurrently. Integrated 10-bit ADC simplifies water-level and temperature sensing, while NanoWatt Sleep drops the standby consumption below 1 uA, helping meet ENERGY STAR idle-loss budgets. The 44-QFN's compact 8 x 8 mm footprint leaves PCB area for power-supply and relay-driver circuitry.
Recommended
Lighting Ballasts and Dimmable LED Drivers
The PIC18LF4410T-I/ML integrates the CCP/ECCP, 10-bit ADC, and USART needed for digital dimming in fluorescent ballasts or constant-current LED drivers. Its 40 MHz instruction cycle supports mixed-frequency PWM dimming down to sub-1 % duty without flicker, while the ADC monitors LED current feedback for closed-loop brightness regulation. The 2.0-5.5 V supply range simplifies start-up from rectified mains via an inexpensive linear or buck converter. Programmable brown-out reset and watchdog timer with on-chip RC oscillator add the fault tolerance required by IEC 61347 and UL 8750 luminaire safety regulations.
Recommended
Human-Machine Interface (HMI) Panels
The PIC18LF4410T-I/ML drives small HMI panels with character LCDs, matrix keypads, status LEDs, and rotary encoders. Its 36 I/O pins handle a 4 x 4 keypad, 4-digit 7-segment display, and an SPI-driven graphical or character LCD without external I/O expanders. The USART provides debug printf or field-upgrade bootloader, while the MSSP (I2C/SPI) connects to capacitive-touch controllers and EEPROMs. The industrial -40 to +85 °C range supports factory-floor HMIs, and the 44-QFN's compact footprint keeps the front-panel PCB shallow behind the mounting bezel.
Recommended
Recommended Products Summary
Engineering reference data for PIC18LF4410T-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18LF4410-I/ML | PIC18LF4510-I/ML | PIC18LF4610-I/ML | PIC18LF4620-I/ML | PIC18F4410-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (ML) 8x8 mm | 44-QFN (ML) - same | 44-QFN (ML) - same | 44-QFN (ML) - same | 44-QFN (ML) - same | 44-QFN (ML) - same |
| Flash Memory | 16 KB | 16 KB | 32 KB (+100%) | 96 KB (+500%) | 64 KB (+300%) | 16 KB |
| Data RAM | 768 bytes | 768 bytes | 1536 bytes (+100%) | 3968 bytes (+417%) | 3968 bytes (+417%) | 768 bytes |
| Data EEPROM | 256 bytes | 256 bytes | 256 bytes | 1024 bytes (+300%) | 1024 bytes (+300%) | 256 bytes |
| Supply Voltage | 2.0 V to 5.5 V (LF) | 2.0 V to 5.5 V (LF) | 2.0 V to 5.5 V (LF) | 2.0 V to 5.5 V (LF) | 2.0 V to 5.5 V (LF) | 4.2 V to 5.5 V (F) |
| Max CPU Clock | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS |
| ADC | 13-channel 10-bit | 13-channel 10-bit | 13-channel 10-bit | 13-channel 10-bit | 13-channel 10-bit | 13-channel 10-bit |
| I/O Pins | 36 | 36 | 36 | 36 | 36 | 36 |
| Industrial Temp (-40 to +85 °C) | Yes | Yes | Yes | Yes | Yes | Yes |
| 1 pc Price (USD, ~) | 5.90 | ~5.85 | ~6.20 | ~7.10 | ~6.65 | ~5.50 |
Key Differentiators
- Extended low-voltage LF family - operates down to 2.0 V versus 4.2 V for PIC18F4410 (vs PIC18F4410-I/ML)
- Doubles Flash headroom with the same 44-QFN footprint (vs PIC18LF4510-I/ML)
- Largest Flash option in the QFN-44 family (vs PIC18LF4610-I/ML)
- Tape-and-reel (T) carrier for high-volume automated assembly (vs PIC18LF4410-I/ML (tray))
Design Notes
The PIC18LF4410T-I/ML requires a bulk 10 uF + 100 nF ceramic decoupling pair within 5 mm of each VDD/VSS pair, plus a separate 100 nF + 10 uF pair on AVDD/AVSS to keep ADC noise below 1 LSB. Brown-out reset must be enabled in CONFIG2L for battery-powered operation - the BOR sets VDD minimum to ~2.0 V and prevents Flash corruption during voltage dips. Estimated: at 40 MHz CPU and all peripherals enabled, VDD current reaches ~15 mA; verify regulator headroom with worst-case 24 V industrial rails stepping down to 3.3 V via an LDO.
The 44-QFN (ML) package has a central exposed pad (EP) that MUST be soldered to a continuous ground plane covering at least 80% of the package footprint. Per the Microchip QFN layout application note (AN1255), place 4 thermal vias (0.3 mm drill, 0.6 mm pad) directly under the EP to drop theta_JA from ~40 C/W to ~28 C/W. Estimated: with 4 vias and 1 sq-in copper pour, junction-to-ambient drops ~12 C/W at 100 mA GPIO load. Keep digital traces > 0.5 mm away from the EP perimeter to avoid solder wicking voids.
Common pitfalls include: (1) leaving the MCLR pin floating - tie to VDD through 10 kohm with optional 100 nF for hardware reset; (2) forgetting CONFIG bits for the LF 2.0 V minimum - leaving the default PIC18F4410 4.2 V minimum prevents LF operation on 3.3 V rails; (3) using the internal 31 kHz LP oscillator for time-critical UART without calibration - run OSCTUNE once and store the trim in EEPROM; (4) sharing RB6/RB7 with PGC/PGD - leave those pins reserved in firmware even when ICD is not in use, otherwise in-circuit debug breaks; (5) skipping ICDR register config before Sleep entry - causes higher than expected Sleep current.
Route the analog AVSS/AVDD pair as a star ground back to the regulator, isolating them from digital switching currents. Place the ADC reference decoupling (1 nF + 10 uF) at the AVDD pin, not at the regulator output. Per the Microchip PIC18F4xxx QFN layout guide, place the 4 EP vias in a 1.6 mm grid matching the package center pad and flood the top layer under the part with GND copper. For long SPI/I2C runs (> 50 mm), add a 4.7 kohm pull-up on SDA/SCL even with internal weak pull-ups enabled, otherwise rise times violate I2C spec.
Compliance Information
RoHS and REACH compliant per Microchip product page; industrial temperature grade -40 to +85 °C; not AEC-Q100 qualified - choose PIC18F family automotive variants for vehicle applications. Halogen-free per Microchip green-compound declarations.
