PIC18F4510-I/P - 8-bit 40MHz 32KB Flash MCU | Microchip
MPN: PIC18F4510-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.2 | $8.20 |
| 10 | $7.38 | $73.80 |
| 100 | $6.55 | $655.00 |
| 500 | $5.91 | $2,955.00 |
| 1,000 | $5.27 | $5,270.00 |
PIC18F4510-I/P Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, peripherals, and interrupt logic on one die. The PIC18F family specifically targets high-performance 8-bit applications using a RISC-style instruction set with 16-bit opcodes, an 8-bit data path, and 31-level hardware stack, positioning it between simple PIC10/12/16 parts and the 16-bit dsPIC/PIC24 family. This hierarchy places the PIC18F4510 within the broader class of microcontrollers, then to embedded controllers, and finally to the larger embedded processing semiconductor category used for system-level design.
Key differentiating features of the PIC18F4510 include nanoWatt technology for dynamic power management with multiple idle and sleep modes, a 10-bit A/D converter with up to 13 channels and auto-acquisition, two Enhanced USART ports supporting RS-232/RS-485, a Master Synchronous Serial Port (MSSP) configurable for SPI or I2C, and 4 timer modules (Timer0 through Timer3). The device also includes a 10-bit Pulse-Width Modulation (PWM) module, parallel slave port, and 13 channels of 10-bit ADC.
The PIC18F4510 is engineered around the enhanced PIC18 core with hardware multiply support and C-compiler friendly architecture. It uses Flash program memory with self-programming capability, allowing in-field firmware updates via ICSP (In-Circuit Serial Programming). The device integrates an internal RC oscillator, a 10-bit ADC, and nanoWatt power management features in a single 40-pin PDIP package, balancing performance with cost-effectiveness for embedded designs.
Typical applications include industrial control systems, automotive body electronics, consumer appliance controllers, HVAC systems, sensor interface modules, and educational/hobbyist projects. The 32 KB Flash and 1536-byte SRAM support C-based firmware using the MPLAB XC8 compiler, while the 36 I/O lines and 13 ADC channels enable interfacing with multiple sensors, switches, and communication peripherals.
When designing with this device, consider the power consumption in sleep modes - the nanoWatt feature provides multiple low-power states. Decoupling capacitors (0.1 uF) should be placed close to VDD/AVDD pins, and the ICSP programming interface requires dedicated RB6/RB7 pin access. The 40-pin PDIP package enables easy prototyping on breadboards and through-hole PCBs.
This page synthesizes distributor pricing, drop-in compatible alternatives within the PIC18F44 family, and practical design notes not commonly found in the manufacturer datasheet, providing engineers with a curated selection guide for new designs and legacy maintenance.
Drop-in alternatives for PIC18F4510-I/P — 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 PIC18F4510-I/P (same form factor and footprint) — differing in Package, Operating Temperature, Timers, Program Memory (Flash), Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F4520-I/P
✅ Drop-In✓ In Stock
$5.35 / Unit
View Datasheet →PIC18F4580-I/P
✅ Drop-In✓ In Stock
$5.1 / Unit
View Datasheet →PIC18F45K22-I/P
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.1 / Unit
View Datasheet →PIC18F4550-I/P
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18F4420-I/P
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18F4455-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.85 / Unit
View Datasheet →PIC18F4510-I/P Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 (8-bit Harvard) |
| Program Memory (Flash) | 32 KB |
| Data SRAM | 1536 bytes |
| Data EEPROM | 256 bytes |
| Maximum Clock Speed | 40 MHz |
| Instruction Cycle Time | 100 ns (4 clocks/instruction) |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit, up to 13 channels |
| Timers | 4 (Timer0-Timer3) |
| CCP Modules | 2 (Capture/Compare/PWM) |
| Enhanced USART | 2 (RS-232/RS-485) |
| MSSP (SPI/I2C) | 1 |
| Parallel Slave Port | Yes |
| Package | PDIP-40 (DIP-40), 0.600 inch, plastic |
| Mounting Type | Through-Hole (THT) |
| Operating Temperature | -40C to +85C (industrial, I grade) |
| nanoWatt Power Management | Yes |
| ICSP Programming | Yes (In-Circuit Serial Programming) |
| RoHS Status | Compliant |
PIC18F4510-I/P Pin Configuration
| Pin 1 | /MCLR/VPP — Master Clear (Reset) input / Programming voltage |
| Pin 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| Pin 4 | RA2/AN2/VREF- — PORTA bit 2 / Analog input 2 / ADC VREF- |
| Pin 5 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC VREF+ |
| Pin 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin 7 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI Slave Select |
| Pin 8 | RE0/RD/AN5 — PORTE bit 0 / Parallel Slave Port read / AN5 |
| Pin 9 | RE1/WR/AN6 — PORTE bit 1 / Parallel Slave Port write / AN6 |
| Pin 10 | RE2/CS/AN7 — PORTE bit 2 / Parallel Slave Port CS / AN7 |
| Pin 11 | VDD — Positive supply voltage |
| Pin 12 | VSS — Ground reference |
| Pin 13 | OSC1/CLKIN — Oscillator crystal input / External clock input |
| Pin 14 | OSC2/CLKOUT — Oscillator crystal output / Clock output |
| Pin 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock |
| Pin 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| Pin 17 | RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM 1 |
| Pin 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
| 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 / CCP2 (alternate) |
| 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 |
| Pin 29 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 30 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 31 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| Pin 32 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| Pin 33 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| Pin 34 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| Pin 35 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| Pin 36 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| Pin 37 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| Pin 38 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| Pin 39 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| Pin 40 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
Typical Applications
PIC18F4510-I/P is suitable for 7 applications: Industrial Control Systems, Consumer Appliance Controllers, HVAC Climate Control Modules, Sensor Interface and Data Acquisition, Educational and Hobbyist Embedded Projects, Motor Control and PWM Drive, Automotive Body Electronics (Non-CAN).
Industrial Control Systems
The PIC18F4510-I/P fits industrial control applications due to its 40 MHz processing, 36 I/O lines for connecting to relays and sensors, and 13-channel 10-bit ADC for analog monitoring. With -40C to +85C industrial temperature range, the MCU operates reliably inside control cabinets. The 32 KB Flash and 1536-byte SRAM support C-based PLC ladder logic replacement. The two USART ports enable Modbus RTU master/slave communications while MSSP supports SPI sensors. Place decoupling capacitors within 5 mm of VDD/AVDD pins and route oscillator traces away from high-current switching lines. The PIC18F4510's nanoWatt sleep modes below 1 uA reduce idle panel power.
Recommended
Consumer Appliance Controllers
In consumer appliances such as washing machines, dishwashers, and microwave ovens, the PIC18F4510-I/P delivers 40 MIPS performance for keypad scanning, LED/LCD driving, and motor control via its 2 CCP/PWM modules. The 36 I/O lines interface with membrane keypads, 7-segment displays, and triac drivers. The 10-bit ADC with 13 channels reads temperature sensors (NTC), water level detectors, and motor current. The MSSP drives SPI displays or I2C EEPROM for user settings. nanoWatt modes reduce standby power below energy-star limits. Compared to lower-pin PIC16 parts, the 40-pin PDIP simplifies layout with grouped peripheral pins.
Recommended
HVAC Climate Control Modules
The PIC18F4510-I/P serves HVAC thermostat and zone controller designs through its 13 ADC channels for reading multiple temperature sensors (10K NTC thermistors), 2 PWM outputs for damper and valve actuators, and USART for communicating with indoor/outdoor units. With 32 KB Flash, the MCU runs PID control loops at 100 Hz sampling while supporting user-interface LCDs via SPI. The industrial -40C to +85C temperature range handles attic and basement installations. Compared to PIC24 alternatives, the PIC18F4510 cuts cost while delivering adequate performance for residential HVAC systems. The 36 I/O lines drive relays, triacs, and status LEDs.
Recommended
Sensor Interface and Data Acquisition
Data acquisition front-ends use the PIC18F4510-I/P for its 13-channel 10-bit ADC sampling at up to 30 ksps aggregate rate, suitable for low-frequency sensors in process monitoring. The 32 KB Flash buffers acquired data via MSSP to external SPI Flash, while the 2 USART ports forward aggregated packets to a central controller. The 4 timer modules trigger periodic sampling at sub-millisecond intervals. Unlike dedicated ADC chips, the integrated MCU pre-processes data (averaging, thresholding) before transmission. Industrial temperature rating suits factory floor deployments and outdoor instrumentation.
Recommended
Educational and Hobbyist Embedded Projects
The PIC18F4510-I/P is a popular choice for university embedded systems courses and hobbyist projects due to its 40-pin PDIP through-hole package that drops into breadboards and protoboards without SMD soldering. The 40 MHz speed and 32 KB Flash support introductory C programming using the free MPLAB XC8 compiler, with the PICkit 5 debugger providing one-click programming via ICSP. Compared to PIC16F877A, the PIC18F4510 provides enhanced instructions and C-compiler optimization, easing the transition to professional 8-bit development. The 36 I/O pins enable robotics and mechatronics projects with motor drivers and sensor arrays.
Recommended
Motor Control and PWM Drive
The PIC18F4510-I/P supports brushed DC motor and small BLDC motor control through its 2 CCP/PWM modules generating complementary or independent PWM outputs at up to 40 MHz timebase resolution. Quadrature encoder feedback is read via Timer0/Timer1 in counter mode, closing velocity loops in firmware. The 36 I/O lines drive H-bridge gate signals, current-sense amplifiers, and brake relays. The 10-bit ADC reads back motor current and back-EMF for sensorless applications. nanoWatt modes cut idle power between motion commands. For higher-performance FOC algorithms, dsPIC33 parts are recommended; the PIC18F4510 covers trapezoidal commutation adequately.
Recommended
Automotive Body Electronics (Non-CAN)
Non-safety automotive applications such as interior lighting controllers, seat adjustment modules, and accessory multiplexers leverage the PIC18F4510-I/P's 32 KB Flash for multi-zone lighting patterns and 36 I/O lines for switch inputs and LED drivers. The industrial temperature range handles cabin environments, though AEC-Q100 qualification is not present on this standard part. The two USARTs enable LIN bus via external transceiver ICs. For CAN bus body modules, migrate to PIC18F4580-I/P, which shares the same 40-pin PDIP footprint. Compared to PIC16F alternatives, the PIC18F4510 simplifies CAN stack migration paths.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F4510-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F4520-I/P | PIC18F4580-I/P | PIC18F45K22-I/P | PIC18F4550-I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-40 (DIP-40) | PDIP-40 - same | PDIP-40 - same | PDIP-40 - same | PDIP-40 - same |
| Flash Memory | 32 KB | 32 KB | 32 KB | 64 KB | 32 KB |
| SRAM | 1536 bytes | 1536 bytes | 1536 bytes | 3864 bytes | 2048 bytes |
| Maximum Clock Speed | 40 MHz | 40 MHz | 40 MHz | 64 MHz | 48 MHz |
| I/O Pins | 36 | 36 | 36 | 36 | 35 |
| USB Peripheral | No | No | No | No | Yes (USB 2.0 FS OTG) |
| CAN Peripheral | No | No | Yes (ECAN) | No | No |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Supply Voltage | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 1.8 V to 5.5 V | 4.2 V to 5.5 V |
Key Differentiators
- Mechanical drop-in compatibility with the PIC18F45xx family (vs PIC18F4520-I/P)
- Optional CAN bus support via same-package upgrade (vs PIC18F4580-I/P)
- nanoWatt XLP low-power performance vs standard nanoWatt (vs PIC18F45K22-I/P)
- Optional USB 2.0 Full-Speed support via same-package upgrade (vs PIC18F4550-I/P)
Design Notes
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of each VDD pin (pins 11 and 20) and one on AVDD if used for ADC reference. Add a bulk 10 uF tantalum or aluminum electrolytic capacitor on the supply rail near the MCU. The PIC18F4510 supply voltage range is 4.2 V to 5.5 V; do not operate below 4.2 V as Flash programming and ADC accuracy become unreliable. nanoWatt sleep modes can drop current below 1 uA typical when peripherals are disabled.
Route the 40 MHz crystal traces (OSC1 pin 13, OSC2 pin 14) as short as possible with ground guard ring or ground pour on both sides. Keep crystal traces away from high-current switching nodes (PWM outputs, relay drivers). The ICSP programming pins (RB6/PGC pin 27, RB7/PGD pin 28) must be accessible via a 2x3 or 1x6 header for in-circuit programming - do not place blocking components in series. Add a 10 kohm pull-up on /MCLR (pin 1).
Do not confuse the I-suffix (industrial -40C to +85C) with E-suffix (extended -40C to +125C) - the PIC18F4510-E/P variant exists and is NOT the same part. Configuration bits must be programmed correctly: enable the internal oscillator block (INTIO2) only if external crystal is absent, and disable the watchdog timer (WDT) for normal operation or enable it with a long prescaler for safety-critical applications. The ADC requires acquisition time setting in ADCON2 corresponding to source impedance; 4 uS minimum is typical for 10 kohm source impedance.
The PIC18F4510-I/P in PDIP-40 package has a typical thermal resistance of approximately 50 C/W junction-to-ambient, sufficient for industrial applications up to 40 MHz with moderate I/O switching. At maximum clock speed and all 36 I/O pins driving 20 mA loads (which exceeds absolute maximum), junction temperature could exceed ratings; in practice outputs source/sink 25 mA each with a total package dissipation budget of 800 mW. Provide copper pour area if high I/O drive duty is expected.
When using the Parallel Slave Port (PSP) on PORTD pins 33-40, route PSP data lines as a matched-length bus within 5 mm of each other to preserve timing margins. For ADC accuracy, separate analog signals (AN0-AN7 on PORTA and PORTE) from digital switching traces by at least 3 mm or use guard traces tied to ground. The AVSS pin (if used as separate analog ground) should connect to the digital ground at a single point near the MCU.
Compliance Information
RoHS and REACH compliant per Microchip product page. Lead-free finish. Not AEC-Q100 qualified - for automotive safety applications, contact Microchip for AEC-qualified variants. Halogen-free molding compound per Microchip material declaration.
