PIC18LF4510T-I/PT - 8-bit 40MHz 32KB Flash MCU | Microchip TQFP-44
MPN: PIC18LF4510T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 10 | $6.17 | $61.70 |
| 100 | $5.48 | $548.00 |
| 500 | $4.93 | $2,465.00 |
| 1,000 | $4.39 | $4,390.00 |
PIC18LF4510T-I/PT Overview
A PIC microcontroller is a compact, self-contained computer-on-a-chip built around a Harvard-architecture RISC core with on-board Flash, RAM, EEPROM, and a rich set of peripherals (ADC, timers, UART, I2C, SPI, PWM, etc.). Microcontrollers belong to the broader hierarchy: microcontroller -> embedded processor -> semiconductor -> integrated circuit. PIC18F devices sit in Microchip's high-performance 8-bit tier, above the baseline PIC10/12/16 families, and are widely used in cost-sensitive embedded designs where deterministic behavior, low power, and abundant peripheral integration are required.
Key features of the PIC18LF4510 include a 10-bit ADC with up to 13 input channels, two 8-bit timers plus three 16-bit timers, two analog comparators, one MSSP (SPI/I2C) and one enhanced USART, an 8/16-bit parallel slave port, and a 10-bit PWM module. The device includes 256 bytes of EEPROM for non-volatile data storage and supports In-Circuit Serial Programming (ICSP) plus In-Circuit Debug (ICD).
The PIC18F core delivers 16-bit wide instructions and an 8-bit data path with a hardware multiplier, providing ~10 MIPS peak throughput at 40 MHz. The 'LF' extended voltage range (2.0V-5.5V) enables battery-powered or energy-harvesting applications, while the wide operating temperature range of -40C to +85C suits industrial environments. Internal oscillator options and nanoWatt power management modes reduce quiescent current for sleep scenarios.
Typical applications for the PIC18LF4510T-I/PT include industrial control panels, HVAC sensor interfaces, low-power handheld instruments, automotive body modules, and consumer appliances. It is also well-suited to sensor nodes, motor control peripherals, and human-machine interface (HMI) boards where its 36 I/Os and 10-bit ADC cover most mid-complexity analog/digital needs without the cost of a 32-bit MCU.
When designing with this part, ensure decoupling capacitors are placed close to VDD/VSS pairs and that the ICSP/ICD pins are accessible on the PCB for firmware updates. The wide 2.0V-5.5V supply range allows direct connection to a single-cell Li-ion pack (with regulator) or a 3.3V regulated rail, simplifying power tree design.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone. As of 2026-09-28, the part is active in Microchip's product line and sourced through 9+ distributors per Octopart.
Drop-in alternatives for PIC18LF4510T-I/PT — 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/PT (same form factor and footprint) — differing in Package, Operating Temperature, Timers, Mounting Type, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18LF4510-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF4510-I/P
✅ Drop-In✓ In Stock
$5.34 / Unit
View Datasheet →PIC18LF4610-I/PT
✅ Drop-In✓ In Stock
$5.2 / Unit
View Datasheet →PIC18LF4515-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF4410-I/PT
✅ Drop-In✓ In Stock
$4.18 / Unit
View Datasheet →PIC18LF4420-I/PT
✅ Drop-In✓ In Stock
$5.71 / Unit
View Datasheet →PIC18LF4510T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 (8-bit RISC, Harvard) |
| Program Memory (Flash) | 32 KB (16K x 16) |
| Data RAM | 1.5 KB (1536 bytes) |
| Data EEPROM | 256 bytes |
| Maximum Clock Frequency | 40 MHz |
| Operating Voltage Range | 2.0 V to 5.5 V |
| Number of I/O Pins | 36 |
| ADC Resolution | 10-bit |
| Timers | 2 x 8-bit + 3 x 16-bit |
| Communication Interfaces | 1x MSSP (SPI/I2C), 1x EUSART |
| Analog Comparators | 2 |
| Parallel Slave Port | Yes (8/16-bit) |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 44-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount (Tape & Reel) |
| Programming/Debug | ICSP + ICD |
| RoHS Status | Compliant |
PIC18LF4510T-I/PT Pin Configuration
| Pin 1 | OSC1/CLKI/RA7 — Crystal oscillator input / external clock input / digital I/O RA7 |
| Pin 2 | OSC2/CLKO/RA6 — Crystal oscillator output / clock output / digital I/O RA6 |
| Pin 3 | MCLR/VPP/RE3 — Master clear reset (active low) / programming voltage / digital input RE3 |
| Pin 4 | RA0/AN0 — Digital I/O RA0 / analog input AN0 |
| Pin 5 | RA1/AN1 — Digital I/O RA1 / analog input AN1 |
| Pin 6 | RA2/AN2/VREF- — Digital I/O RA2 / analog input AN2 / ADC VREF- |
| Pin 7 | RA3/AN3/VREF+ — Digital I/O RA3 / analog input AN3 / ADC VREF+ |
| Pin 8 | RA4/T0CKI — Digital I/O RA4 / Timer0 clock input |
| Pin 9 | RA5/AN4/SS — Digital I/O RA5 / analog input AN4 / SPI slave select |
| Pin 10 | VSS — Ground reference |
| Pin 11 | VDD — Positive supply (2.0V to 5.5V) |
| Pin 12 | RB0/INT0/FLT0 — Digital I/O RB0 / external interrupt 0 / PWM fault input |
| Pin 13 | RB1/INT1 — Digital I/O RB1 / external interrupt 1 |
| Pin 14 | RB2/INT2 — Digital I/O RB2 / external interrupt 2 |
| Pin 15 | RB3/INT3/CCP2A — Digital I/O RB3 / external interrupt 3 / CCP2 output A |
| Pin 16 | RB4/KBI0 — Digital I/O RB4 / keyboard interrupt 0 |
| Pin 17 | RB5/KBI1/PGM — Digital I/O RB5 / keyboard interrupt 1 / LVP programming |
| Pin 18 | RB6/KBI2/PGC — Digital I/O RB6 / keyboard interrupt 2 / ICSP clock |
| Pin 19 | RB7/KBI3/PGD — Digital I/O RB7 / keyboard interrupt 3 / ICSP data |
| Pin 20 | VSS — Ground reference |
| Pin 21 | VDD — Positive supply (2.0V to 5.5V) |
| Pin 22 | RC0/T1OSO/T1CKI — Digital I/O RC0 / Timer1 oscillator output / Timer1 clock input |
| Pin 23 | RC1/T1OSI/CCP2B — Digital I/O RC1 / Timer1 oscillator input / CCP2 output B |
| Pin 24 | RC2/CCP1 — Digital I/O RC2 / CCP1 PWM output |
| Pin 25 | RC3/SCK/SCL — Digital I/O RC3 / SPI clock / I2C clock |
| Pin 26 | RC4/SDI/SDA — Digital I/O RC4 / SPI data in / I2C data |
| Pin 27 | RC5/SDO — Digital I/O RC5 / SPI data out |
| Pin 28 | RC6/TX/CK — Digital I/O RC6 / EUSART TX / EUSART clock |
| Pin 29 | RC7/RX/DT — Digital I/O RC7 / EUSART RX / EUSART data |
| Pin 30 | VSS — Ground reference |
| Pin 31 | VDD — Positive supply (2.0V to 5.5V) |
| Pin 32 | RD0/PSP0 — Digital I/O RD0 / parallel slave port data bit 0 |
| Pin 33 | RD1/PSP1 — Digital I/O RD1 / parallel slave port data bit 1 |
| Pin 34 | RD2/PSP2 — Digital I/O RD2 / parallel slave port data bit 2 |
| Pin 35 | RD3/PSP3 — Digital I/O RD3 / parallel slave port data bit 3 |
| Pin 36 | RD4/PSP4 — Digital I/O RD4 / parallel slave port data bit 4 |
| Pin 37 | RD5/PSP5/P1B — Digital I/O RD5 / parallel slave port data bit 5 / PWM output 1B |
| Pin 38 | RD6/PSP6/P1C — Digital I/O RD6 / parallel slave port data bit 6 / PWM output 1C |
| Pin 39 | RD7/PSP7/P1D — Digital I/O RD7 / parallel slave port data bit 7 / PWM output 1D |
| Pin 40 | VSS — Ground reference |
| Pin 41 | VDD — Positive supply (2.0V to 5.5V) |
| Pin 42 | RE0/RD/AN5 — Digital I/O RE0 / parallel slave port read / analog input AN5 |
| Pin 43 | RE1/WR/AN6 — Digital I/O RE1 / parallel slave port write / analog input AN6 |
| Pin 44 | RE2/CS/AN7 — Digital I/O RE2 / parallel slave port chip select / analog input AN7 |
Typical Applications
PIC18LF4510T-I/PT is suitable for 6 applications: Industrial Control Panels, HVAC Sensor Interfaces, Low-Power Handheld Instruments, Automotive Body Modules, Consumer Appliance Controllers, Sensor Hubs and Data Loggers.
Industrial Control Panels
The PIC18LF4510T-I/PT fits industrial control panel applications because its 36 I/Os can drive multiple relays, keypads, and 7-segment displays while the 10-bit ADC handles analog sensor inputs. With 32 KB Flash and 1.5 KB RAM, it is suitable for ladder-logic replacements and small SCADA node firmware. The wide 2.0V-5.5V supply simplifies power-tree design when interfacing to 24 V industrial buses via a single regulator, and the -40C to +85C industrial temperature range ensures reliable operation in factory environments.
Recommended
HVAC Sensor Interfaces
For HVAC sensor interface boards, the PIC18LF4510T-I/PT provides multiple ADC channels for thermistors, pressure transducers, and humidity sensors. Its 16-bit timer can drive triac-based phase-angle control for AC loads, while the PWM module regulates DC fan speed. The 256-byte EEPROM stores calibration constants across power cycles. The wide operating voltage (2.0V-5.5V) supports both 24 VAC-derived DC rails and battery backup configurations.
Recommended
Low-Power Handheld Instruments
The PIC18LF4510T-I/PT is well-suited to low-power handheld instruments because its nanoWatt power-managed modes reduce quiescent current below 1 uA in sleep, and the 2.0V-5.5V LF voltage range enables direct operation from a single 3.7 V Li-ion cell. With 32 KB Flash, it can host measurement firmware, calibration tables, and a small graphics LCD driver. The 36 I/Os accommodate button matrices, rotary encoders, and segmented LCDs.
Recommended
Automotive Body Modules
For automotive body modules like seat controllers, mirror adjusters, and lighting drivers, the PIC18LF4510T-I/PT provides sufficient I/O for H-bridge drivers and switch matrixes. Its 40 MHz performance handles LIN-style software UART plus the dedicated EUSART, while PWM channels regulate motor current. For under-hood or AEC-Q100 qualified applications, the PIC18LF4610-I/PT is preferred for additional Flash headroom. Note: this part is industrial-grade (-40 to +85C), not AEC-Q100 qualified.
Recommended
Consumer Appliance Controllers
The PIC18LF4510T-I/PT fits consumer appliance controllers (small kitchen appliances, washing machine sub-modules, vacuum robot sensor hubs) due to its low BOM cost, integrated peripherals, and Flash firmware upgradeability via ICSP. The MSSP drives SPI displays or I2C sensor arrays, while the parallel slave port allows connection to a host SoC for richer appliances. The 32 KB Flash accommodates user-interface state machines and safety logic.
Recommended
Sensor Hubs and Data Loggers
For multi-sensor data loggers, the PIC18LF4510T-I/PT aggregates data from I2C/SPI sensors, runs basic filtering, and stores samples to external EEPROM via MSSP. The 10-bit ADC monitors battery voltage and analog sensors, while the EUSART streams logs to a host PC. With 1.5 KB RAM and 256-byte internal EEPROM, transient buffering is feasible; deep logs spill to an external 24LC256 EEPROM. The 40 MHz clock enables real-time sensor fusion at 100+ Hz.
Recommended
Recommended Products Summary
Engineering reference data for PIC18LF4510T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18LF4510-I/PT | PIC18LF4610-I/PT | PIC18LF4515-I/PT | |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | |
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Flash Memory | 32 KB | 32 KB | 48 KB (+50%) | 24 KB (-25%) | 16 KB (-50%) |
| Data RAM | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB |
| Operating Voltage | 2.0 V to 5.5 V (LF) | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Maximum Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Number of I/Os | 36 | 36 | 36 | 36 | 36 |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Drop-in memory upgrade path within same package (vs PIC18LF4610-I/PT)
- Wide LF operating voltage range (vs PIC18F4510-I/PT)
- 36 I/Os with parallel slave port (vs PIC18LF4410-I/PT (same 44-TQFP))
Design Notes
Decouple each VDD/VSS pair with a 100 nF ceramic capacitor placed within 3 mm of the MCU pins; add a bulk 10 uF tantalum or ceramic at the regulator output. The LF part tolerates 2.0V-5.5V so you can run from a single Li-ion cell + boost regulator or a 3.3V LDO. Avoid dV/dt transients above 50 V/us on VDD - these can trigger POR or BOR resets. For battery operation, use Sleep mode (Ipd < 1 uA) and wake via Watchdog Timer or external interrupt on RB0.
Estimated: The 44-TQFP has 0.8 mm pin pitch; route all signals on inner layers or use fine-pitch escape. Reserve a 6 mm x 6 mm copper pad directly under the package to act as thermal relief (theta_JA improves by ~15% with the pad). Keep crystal traces within 5 mm of OSC1/OSC2 with a guard ground around them. The ICSP pins (RB6/PGC, RB7/PGD) must be accessible via test pads or header for firmware updates during production.
Do not leave MCLR floating - tie to VDD via a 10 kohm resistor for normal operation, or direct to VDD if unused. The LF prefix means 2.0V minimum - going below this (e.g. 1.8V brownout) triggers BOR. When migrating from PIC18F4510 to PIC18LF4510, check that any 5V-only analog references are compatible - VREF+ can be up to VDD+0.3V only. Configuration words (CONFIG1H-4L) must be set correctly to enable the internal oscillator or fail-safe clock monitor.
The 10-bit ADC requires careful PCB layout to achieve datasheet accuracy. Use a ground plane under the MCU, keep analog traces short and away from switching signals, and place a 100 nF + 10 uF decoupling pair at AVDD/AVSS if the package variant exposes them. Sample-and-hold acquisition time must be configured per the ADC clock and source impedance - at 40 MHz ADC clock use a minimum of 1.2 us acquisition for sources under 10 kohm.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified (industrial grade only, -40C to +85C). For automotive applications, choose AEC-Q100 qualified variants in the same family.