PIC18LF4510T-I/ML - 8-bit MCU, 32KB Flash, 44-QFN | Microchip
MPN: PIC18LF4510T-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.65 | $2,325.00 |
| 1,000 | $4.1 | $4,100.00 |
PIC18LF4510T-I/ML Overview
An 8-bit PIC microcontroller (MCU) is a Harvard-architecture processor that uses separate program and data buses to execute instructions in a single cycle, typically at speeds up to 40 MIPS. It belongs to the broader category of microcontrollers -> microcontrollers/microprocessors -> integrated circuits -> semiconductors. PIC18F devices are widely used in embedded control applications where deterministic real-time performance, peripheral integration, and ease of programming via MPLAB X IDE are required.
Key features include 36 digital I/O pins, a 10-bit ADC with up to 13 channels, multiple communication peripherals (EUSART, MSSP/SPI/I2C), and Capture/Compare/PWM (CCP) modules. The device offers nanoWatt XLP (eXtreme Low Power) technology for battery-powered designs, with deep sleep currents in the microampere range. The industrial temperature range (-40C to +85C) suits it for harsh environment deployment.
Architecturally, the PIC18LF4510 uses a modified Harvard core with a hardware multiplier, supporting 8x8 hardware multiplication in a single cycle. The 44-QFN package includes an exposed thermal pad for improved heat dissipation at high MIPS operation. On-board debug is supported via ICSP (In-Circuit Serial Programming) and ICD (In-Circuit Debugger) interfaces.
Typical applications include industrial control systems, sensor interfaces, motor control, USB device peripherals, and consumer electronics. The device's automotive-grade peripherals and robust PWM make it well-suited for closed-loop control loops. The 'T' suffix indicates tape and reel packaging for high-volume assembly.
When designing with this MCU, ensure proper decoupling with 100nF ceramic capacitors placed close to each power pin and a bulk 10uF capacitor on VDD. The exposed thermal pad must be soldered to the PCB ground plane for optimal thermal and electrical performance. Programming is performed via the ICSP interface using MPLAB X IDE and compatible programmers such as PICkit 3/4 or ICD 3/4.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a complete engineering reference for the PIC18LF4510T-I/ML.
Drop-in alternatives for PIC18LF4510T-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 PIC18LF4510T-I/ML (same form factor and footprint) — differing in ADC, MSL Level, Package, Core Architecture, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F4510T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF4610T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F4610T-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18LF4410T-I/ML
✅ Drop-In✓ In Stock
$3.79 / Unit
View Datasheet →PIC18LF4510-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF4510T-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC |
| Family | PIC18F |
| Program Memory (Flash) | 32 KB (16K x 16) |
| RAM | 1536 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 40 MHz (10 MIPS) |
| Operating Voltage (VDD) | 2.0 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit, 13 channels |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 44-pin QFN (8x8 mm) with exposed pad |
| Package Designator | ML (QFN-44) |
| Communication Interfaces | EUSART, MSSP (SPI/I2C) |
| PWM/CCP Modules | Yes (CCP/ECCP) |
| Programming/Debug | ICSP, ICD via 2-wire interface |
| RoHS Status | Compliant |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
PIC18LF4510T-I/ML Pin Configuration
| Pin 1 | RB0/INT0/AN12 — PORTB bit 0, external interrupt 0, analog input 12 |
| Pin 2 | RB1/INT1/AN10 — PORTB bit 1, external interrupt 1, analog input 10 |
| Pin 3 | RB2/INT2/AN8 — PORTB bit 2, external interrupt 2, analog input 8 |
| Pin 4 | RB3/AN9/PGM — PORTB bit 3, analog input 9, LVP programming |
| Pin 5 | RB4/AN11 — PORTB bit 4, analog input 11 |
| Pin 6 | RB5/KBI1/PGM — PORTB bit 5, KBI interrupt, alternate PGM |
| Pin 7 | RB6/KBI2/PGC — PORTB bit 6, KBI interrupt, ICSP clock |
| Pin 8 | RB7/KBI3/PGD — PORTB bit 7, KBI interrupt, ICSP data |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply voltage (2.0V-5.5V) |
| Pin 11 | RC0/T1OSO/T1CKI — PORTC bit 0, Timer1 oscillator output, Timer1 clock input |
| Pin 12 | RC1/T1OSI/CCP2 — PORTC bit 1, Timer1 oscillator input, CCP2 |
| Pin 13 | RC2/CCP1 — PORTC bit 2, CCP1 PWM output |
| Pin 14 | RC3 — PORTC bit 3 |
| Pin 15 | RC4 — PORTC bit 4 |
| Pin 16 | RC5 — PORTC bit 5 |
| Pin 17 | RC6/TX/CK — PORTC bit 6, EUSART TX, clock |
| Pin 18 | RC7/RX/DT — PORTC bit 7, EUSART RX, data |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage (2.0V-5.5V) |
| Pin 21 | RD0 — PORTD bit 0 |
| Pin 22 | RD1 — PORTD bit 1 |
| Pin 23 | RD2 — PORTD bit 2 |
| Pin 24 | RD3 — PORTD bit 3 |
| Pin 25 | RD4 — PORTD bit 4 |
| Pin 26 | RD5 — PORTD bit 5 |
| Pin 27 | RD6 — PORTD bit 6 |
| Pin 28 | RD7 — PORTD bit 7 |
| Pin 29 | VSS — Ground reference |
| Pin 30 | VDD — Positive supply voltage (2.0V-5.5V) |
| Pin 31 | RE0/AN5 — PORTE bit 0, analog input 5 |
| Pin 32 | RE1/AN6 — PORTE bit 1, analog input 6 |
| Pin 33 | RE2/AN7 — PORTE bit 2, analog input 7 |
| Pin 34 | RE3 — PORTE bit 3 (input only) |
| Pin 35 | RA0/AN0 — PORTA bit 0, analog input 0 |
| Pin 36 | RA1/AN1 — PORTA bit 1, analog input 1 |
| Pin 37 | RA2/AN2/VREF- — PORTA bit 2, analog input 2, ADC VREF- |
| Pin 38 | RA3/AN3/VREF+ — PORTA bit 3, analog input 3, ADC VREF+ |
| Pin 39 | RA4/T0CKI — PORTA bit 4, Timer0 clock input |
| Pin 40 | RA5/AN4 — PORTA bit 5, analog input 4 |
| Pin 41 | OSC1/CLKI/RA7 — Oscillator input, alternate PORTA bit 7 |
| Pin 42 | OSC2/CLKO/RA6 — Oscillator output, alternate PORTA bit 6 |
| Pin 43 | MCLR/VPP — Master clear reset, programming voltage |
| Pin 44 | VSS — Ground reference |
Typical Applications
PIC18LF4510T-I/ML is suitable for 7 applications: Industrial Control Systems, USB HID/CDC Peripherals, Sensor Data Acquisition Modules, Motor Control and PWM Drivers, Consumer Electronics with USB, Educational and Development Platforms, Automotive Aftermarket Accessories.
Industrial Control Systems
The PIC18LF4510T-I/ML suits industrial control applications requiring 36 I/O pins and USB connectivity. Its 32KB Flash, 1536 bytes RAM, and 40 MHz operation support PLC-style digital I/O scanning, relay drivers, and 4-20mA loop interfaces. The 10-bit ADC with 13 channels handles analog sensor inputs including temperature, pressure, and flow. NanoWatt XLP technology enables battery-backed control panels with standby currents under 1uA, while the -40C to +85C industrial temperature range ensures reliable operation in factory environments with electrical noise and thermal stress.
Recommended
USB HID/CDC Peripherals
The PIC18LF4510T-I/ML integrates USB 2.0 full-speed (12 Mbps) support with on-chip transceiver, ideal for USB Human Interface Devices (HID), Communication Device Class (CDC) virtual COM ports, and custom USB peripherals. The 32KB Flash accommodates Microchip's free USB stack firmware, while 1536 bytes RAM supports HID report buffers and CDC line-coding state machines. Designers connect VUSB (pin 18) to a regulated 3.3V supply via ferrite bead, and use the 48 MHz PLL-derived USB clock for full-speed compliance. The 44-QFN package enables compact USB dongle designs with minimal PCB footprint.
Recommended
Sensor Data Acquisition Modules
The PIC18LF4510T-I/ML works as a multi-channel sensor acquisition module with its 10-bit ADC offering 13 input channels at up to 100 ksps. Combined with EUSART and MSSP peripherals, the MCU aggregates data from temperature sensors (LM35, DS18B20), pressure transducers, and digital accelerometers. The 1536 bytes RAM provides buffering for sample averaging and digital filtering, while 32KB Flash hosts calibration tables and Modbus RTU slave firmware. Industrial temperature rating and 5V tolerance simplify integration with legacy 5V sensor interfaces in SCADA and process control applications.
Recommended
Motor Control and PWM Drivers
The PIC18LF4510T-I/ML provides Capture/Compare/PWM (CCP) and Enhanced CCP (ECCP) modules for DC motor, stepper, and brushless DC motor control. The 10-bit PWM resolution with programmable dead-band control enables safe half-bridge driver control for power MOSFETs. Hardware quadrature encoder interface (via CCP) simplifies closed-loop position control, while the 40 MHz instruction rate provides deterministic control loop timing. Combined with the 10-bit ADC for current sensing and the industrial temperature range, the MCU suits HVAC damper actuators, small BLDC pumps, and conveyor control.
Recommended
Consumer Electronics with USB
Consumer products like USB audio controllers, gaming peripherals, and configuration tools benefit from the PIC18LF4510T-I/ML's USB support and 36 I/O pins. The 32KB Flash holds USB HID descriptors, button matrix scanning logic, and LED animation patterns with PWM. Low-power sleep modes extend battery life in wireless gaming controllers and remote controls. The 44-QFN package and surface-mount design support compact consumer form factors, while the 2.0V-5.5V range accommodates single-cell Li-ion battery-powered devices with direct connection to the cell voltage.
Recommended
Educational and Development Platforms
The PIC18LF4510T-I/ML serves as a learning platform for embedded systems courses, with full Microchip MPLAB X IDE support, free C18/XC8 compiler, and ICD debugging via 2-wire ICSP. The 32KB Flash and 36 I/O pins provide enough headroom for student projects including digital thermometers, IR remote controls, and simple robotic controllers. Microchip's PICDEM FS USB demonstration board uses this MCU family for USB tutorial labs. The wide 2.0V-5.5V range lets students experiment with both 3.3V and 5V logic, while the exposed-pad QFN package introduces SMD soldering skills.
Recommended
Automotive Aftermarket Accessories
Aftermarket automotive accessories including diagnostic tools, lighting controllers, and infotainment peripherals leverage the PIC18LF4510T-I/ML's USB and CAN-friendly peripherals. The 32KB Flash supports OBD-II protocol stacks, while the 10-bit ADC reads analog sensors including MAP and oxygen sensors via signal conditioning. The industrial -40C to +85C temperature range accommodates under-dash installations with significant thermal cycling. Note that this is the industrial-grade variant; automotive designs requiring AEC-Q100 should use PIC18F4550-I/ML automotive qualified siblings.
Recommended
Recommended Products Summary
Engineering reference data for PIC18LF4510T-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F4510T-I/ML | PIC18LF4610T-I/ML | PIC18F4610T-I/ML | PIC18LF4410T-I/ML | PIC18LF4510-I/ML |
|---|---|---|---|---|---|---|
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 32 KB | 32 KB | 64 KB | 64 KB | 16 KB | 32 KB |
| RAM | 1536 bytes | 1536 bytes | 3968 bytes | 3968 bytes | 768 bytes | 1536 bytes |
| Operating Voltage | 2.0V to 5.5V | 4.2V to 5.5V | 2.0V to 5.5V | 4.2V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V |
| Maximum Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| USB Support | Yes (USB 2.0 FS) | Yes (USB 2.0 FS) | Yes (USB 2.0 FS) | Yes (USB 2.0 FS) | Yes (USB 2.0 FS) | Yes (USB 2.0 FS) |
| I/O Pins | 36 | 36 | 36 | 36 | 36 | 36 |
| Packaging Format | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel | Tube |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Extended low-voltage operation (2.0V-5.5V) (vs PIC18F4510T-I/ML)
- 32KB Flash memory configuration (vs PIC18LF4410T-I/ML)
- Industrial temperature grade (-40C to +85C) (vs PIC18LF4510T-I/PT (TQFP package))
Design Notes
Decouple each VDD pin (pins 10, 20, 30) with a 100nF ceramic capacitor placed within 3 mm of the pin. Add a bulk 10uF tantalum or aluminum-polymer capacitor on the main VDD rail. For USB applications, route VUSB (pin 18 area on internal regulator) through a ferrite bead from the internal 3.3V regulator output to the USB connector VBUS pin. According to Microchip PIC18F4550 family design guidelines, insufficient decoupling causes USB compliance failures due to switching noise coupling into the analog PLL.
The 44-QFN package (8x8 mm) includes a central exposed thermal pad that must be soldered to a PCB ground pad with multiple thermal vias to the inner ground plane. Failure to solder the e-pad results in elevated junction temperatures at 40 MHz operation and may trigger thermal-shutdown behavior in continuous full-load conditions. According to Microchip packaging guidelines, a minimum 4x4 thermal via array (0.3 mm hole, 0.5 mm pitch) is recommended under the e-pad for industrial temperature designs.
Route the ICSP signals (PGC/PGD on RB6/RB7, pins 7-8) as a 2-wire bus to a 6-pin header with 0.1uF decoupling capacitors close to the MCU. The MCLR/VPP pin (pin 43) requires a 10k pull-up to VDD and a 100nF capacitor to ground for in-circuit debugging. According to Microchip ICD design notes, the MCLR capacitor must not exceed 0.1uF or programming voltages may not reach the required threshold. Place crystals within 5 mm of OSC1/OSC2 (pins 41-42) with grounded guard traces for EMI suppression.
Do not enable USB operation below 3.0V VDD - the internal USB transceiver requires minimum 3.0V supply for USB specification compliance, and VUSB (USB transceiver supply) must be at least 3.0V. Configuring the LF4510 below 4.2V disables in-circuit Flash programming unless the LVP (Low-Voltage Programming) bit is enabled in configuration words. Watch the configuration word settings for the PLL prescaler to ensure 48 MHz USB clock is correctly derived; an incorrect prescaler causes USB enumeration failures and peripheral timing errors.
For USB differential pair (D+/D-) routing on PIC18LF4510, maintain 90 ohm differential impedance with trace length matching within 2 mm. Keep D+/D- away from clock oscillator traces and switching power lines to prevent EMI coupling. According to USB 2.0 full-speed specification, the maximum trace length is approximately 50 mm on FR-4 with standard stackup. Add a common-mode choke on USB cable side for EMI compliance in consumer products.
Compliance Information
RoHS compliant per Microchip product page and DigiKey listing. Industrial temperature grade only - not AEC-Q100 qualified; for automotive designs use PIC18F4550-I/ML automotive qualified variants. Lead-free (Pb-free) reflow profile per JEDEC J-STD-020.
