PIC18F63J11-I/PT - 8-Bit 40MHz MCU, 8KB Flash, 64-TQFP | Microchip
MPN: PIC18F63J11-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.55 | $6.55 |
| 10 | $5.94 | $59.40 |
| 100 | $5.3 | $530.00 |
| 500 | $4.78 | $2,390.00 |
| 1,000 | $4.25 | $4,250.00 |
PIC18F63J11-I/PT Overview
What is a PIC18J-series microcontroller? The PIC18J family is Microchip's low-voltage, nanoWatt-oriented branch of the 8-bit PIC18 architecture, integrating a Harvard RISC core with peripheral-rich analog and digital blocks, configurable I/O, and Flash program memory in a single CMOS die. Within Microchip's taxonomy, PIC18J sits below the enhanced PIC18K (XLP) and the PIC24/dsPIC 16-bit families but above the baseline PIC16 mid-range parts.
Key features include a 10-bit ADC, multiple timers, enhanced CCP/ECCP, two USARTs, SPI/I2C, an 8 MHz internal oscillator (with PLL up to 40 MHz), and nanoWatt power-saving modes. The 51 I/O pins are 5V-tolerant and capable of interrupt-on-change. The Flash supports self-programming and ICD (in-circuit debug) via two dedicated pins.
Architecturally, the part uses a 16-bit instruction word with an 8-bit data path, a hardware multiplier, and a vectored interrupt controller. A dedicated ICD port allows real-time debug without probe removal, and the internal oscillator with 4x PLL eliminates the external crystal in many designs, reducing BOM cost.
Typical applications include industrial control panels, HVAC fan/pump controllers, USB/HID human-interface devices, sensor hubs, and low-cost data acquisition front ends. The wide 4.2-5.5V supply range suits 5V legacy system retrofits.
When designing, allocate the ICD/PGD/PGC pins early since they double as digital I/O only when debugging is disabled. Place a 100 nF decoupling capacitor within 3 mm of each VDD/VSS pair, and reserve the MCLR pin with its proper 10 kohm pull-up configuration.
This page consolidates distributor pricing, package-compatible drop-in alternatives from Microchip's own portfolio, application guidance, and design notes not duplicated on the manufacturer's marketing page.
Drop-in alternatives for PIC18F63J11-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 PIC18F63J11-I/PT (same form factor and footprint) — differing in ADC, I/O Pins, Internal Oscillator, Package, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F63J11T-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F64J11-I/PT
✅ Drop-In✓ In Stock
$3.25 / Unit
View Datasheet →PIC18F65J11-I/PT
✅ Drop-In✓ In Stock
$4.35 / Unit
View Datasheet →PIC18F66J11-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F67J11-I/PT
✅ Drop-In✓ In Stock
$5.4 / Unit
View Datasheet →PIC18F63J11-I/PT Maximum Ratings & Electrical Characteristics
| Architecture | PIC18J, 8-bit RISC |
| CPU Core | PIC18 Harvard, 16-bit instructions |
| Maximum Clock Frequency | 40 MHz (10 MIPS) |
| Internal Oscillator | 8 MHz with 4x PLL (to 32 MHz), software tunable |
| Program Memory (Flash) | 8 KB (4K x 16 words), self-programmable |
| Data Memory (SRAM) | 1 KB (1024 bytes) |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| I/O Pins | 51 digital I/O |
| ADC | 10-bit successive approximation |
| Communication Peripherals | 2x USART (RS-232/RS-485), SPI, I2C |
| Timers | Timer0/Timer1/Timer2/Timer3 |
| Capture/Compare/PWM | CCP + Enhanced ECCP |
| Package | 64-pin TQFP (10x10 mm, 1 mm height, MS-026) |
| Operating Temperature | -40C to +85C (industrial, 'I' suffix) |
| Mounting Type | Surface Mount |
PIC18F63J11-I/PT Pin Configuration
| Pin 1 | RC2/CCP1 — I/O port C bit 2 / Capture-Compare-PWM 1 output |
| Pin 2 | RC3 — I/O port C bit 3 |
| Pin 3 | RC4 — I/O port C bit 4 |
| Pin 4 | RC5 — I/O port C bit 5 |
| Pin 5 | RC6/TX1 — I/O port C bit 6 / USART1 transmit |
| Pin 6 | RC7/RX1 — I/O port C bit 7 / USART1 receive |
| Pin 7 | RD0 — I/O port D bit 0 |
| Pin 8 | RD1 — I/O port D bit 1 |
| Pin 9 | RD2 — I/O port D bit 2 |
| Pin 10 | RD3 — I/O port D bit 3 |
| Pin 11 | RD4 — I/O port D bit 4 |
| Pin 12 | RD5 — I/O port D bit 5 |
| Pin 13 | RD6 — I/O port D bit 6 |
| Pin 14 | RD7 — I/O port D bit 7 |
| Pin 15 | VSS — Ground reference |
| Pin 16 | VDD — Positive supply (4.2-5.5 V) |
| Pin 17 | RE0 — I/O port E bit 0 |
| Pin 18 | RE1 — I/O port E bit 1 |
| Pin 19 | RE2 — I/O port E bit 2 |
| Pin 20 | RE3/MCLR — I/O port E bit 3 / Master Clear (reset) input |
| Pin 21 | RA0/AN0 — I/O port A bit 0 / Analog input 0 |
| Pin 22 | RA1/AN1 — I/O port A bit 1 / Analog input 1 |
| Pin 23 | RA2/AN2 — I/O port A bit 2 / Analog input 2 |
| Pin 24 | RA3/AN3/VREF+ — I/O port A bit 3 / Analog input 3 / ADC positive reference |
| Pin 25 | RA4/AN4 — I/O port A bit 4 / Analog input 4 |
| Pin 26 | RA5/AN5 — I/O port A bit 5 / Analog input 5 |
| Pin 27 | RA6 — I/O port A bit 6 (OSC2 on some parts) |
| Pin 28 | RA7 — I/O port A bit 7 (OSC1 on some parts) |
| Pin 29 | VSS — Ground reference |
| Pin 30 | VDD — Positive supply (4.2-5.5 V) |
| Pin 31 | OSC1/CLKI — External clock input / crystal connection |
| Pin 32 | OSC2/CLKO — External clock output / crystal connection |
| Pin 33 | RB0/INT0 — I/O port B bit 0 / External interrupt 0 |
| Pin 34 | RB1/INT1 — I/O port B bit 1 / External interrupt 1 |
| Pin 35 | RB2/INT2 — I/O port B bit 2 / External interrupt 2 |
| Pin 36 | RB3 — I/O port B bit 3 |
| Pin 37 | RB4 — I/O port B bit 4 |
| Pin 38 | RB5 — I/O port B bit 5 |
| Pin 39 | RB6/PGC — I/O port B bit 6 / ICSP clock (debug) |
| Pin 40 | RB7/PGD — I/O port B bit 7 / ICSP data (debug) |
| Pin 41 | VSS — Ground reference |
| Pin 42 | VDD — Positive supply (4.2-5.5 V) |
| Pin 43 | RF0 — I/O port F bit 0 |
| Pin 44 | RF1 — I/O port F bit 1 |
| Pin 45 | RF2 — I/O port F bit 2 |
| Pin 46 | RF3 — I/O port F bit 3 |
| Pin 47 | RF4 — I/O port F bit 4 |
| Pin 48 | RF5 — I/O port F bit 5 |
| Pin 49 | RF6 — I/O port F bit 6 |
| Pin 50 | RF7 — I/O port F bit 7 |
| Pin 51 | RG0 — I/O port G bit 0 |
| Pin 52 | RG1 — I/O port G bit 1 |
| Pin 53 | RG2 — I/O port G bit 2 |
| Pin 54 | RG3 — I/O port G bit 3 |
| Pin 55 | RG4 — I/O port G bit 4 |
| Pin 56 | RH0/AN6 — I/O port H bit 0 / Analog input 6 |
| Pin 57 | RH1/AN7 — I/O port H bit 1 / Analog input 7 |
| Pin 58 | RH2/AN8 — I/O port H bit 2 / Analog input 8 |
| Pin 59 | RH3/AN9 — I/O port H bit 3 / Analog input 9 |
| Pin 60 | RH4/AN10 — I/O port H bit 4 / Analog input 10 |
| Pin 61 | RH5/AN11 — I/O port H bit 5 / Analog input 11 |
| Pin 62 | RH6/AN12 — I/O port H bit 6 / Analog input 12 |
| Pin 63 | RH7/AN13 — I/O port H bit 7 / Analog input 13 |
| Pin 64 | AVSS — Analog ground reference |
Typical Applications
PIC18F63J11-I/PT is suitable for 6 applications: Industrial Control Panels, HVAC Fan and Pump Controllers, Data Logger Front End, Sensor Hub / Aggregator, Consumer Appliance Controller, RS-232/RS-485 Field Devices.
Industrial Control Panels
The PIC18F63J11-I/PT fits industrial control panels thanks to its 51 digital I/O pins and 5V supply tolerance, which simplify direct drive of 24V-signal opto-isolators after dropping resistors. Its 40 MHz / 10 MIPS core comfortably scans matrix keypads, multiplexed seven-segment displays, and PWM-controlled relays within tight millisecond update budgets. The 8 KB Flash holds typical 4-6 kB state-machine firmware with margin for in-field updates over ICSP. NanoWatt idle modes reduce quiescent draw below 1 µA when the panel is in standby, important for thermally-constrained enclosures.
Recommended
HVAC Fan and Pump Controllers
Variable-speed HVAC systems use the PIC18F63J11-I/PT to read NTC thermistor inputs through the 10-bit ADC and generate the ECCP PWM waveform that drives a triac or BLDC commutation stage. The 8 MHz internal oscillator with 4x PLL eliminates the external crystal in space-constrained fan housings, reducing BOM by ~$0.20. The 1 KB SRAM is sufficient for PI loop state, EEPROM emulation tables, and the Modbus RTU receive buffer used by building-management systems. Industrial -40C to +85C operation tolerates plenum temperatures near heat exchangers.
Recommended
Data Logger Front End
Cost-sensitive multi-channel data loggers leverage the PIC18F63J11-I/PT's 12-channel 10-bit ADC, generous Flash for command parsing, and 51 I/O for SD-card and RTC chip-select signals. With self-programmable Flash and >10k erase cycles the device can store configuration profiles or compressed telemetry locally without an external EEPROM. SPI clocking up to 10 MHz interfaces to standard SD cards, while the I2C bus hosts an MCP79410 RTC and an MCP9808 sensor. At 4 mA/MIPS active, a 2000 mAh battery sustains a year of hourly wake-and-log cycles.
Recommended
Sensor Hub / Aggregator
Industrial sensor hubs aggregate readings from SPI/I2C sensor arrays and forward them via RS-485 to a host PLC. The PIC18F63J11-I/PT's two USARTs allow simultaneous RS-485 host comms and a debug console, while the SSP serves as the I2C master to temperature, humidity, and pressure sensors. The 8 KB Flash accommodates a small RTOS or state-machine scheduler plus the Modbus application layer. The wide 4.2-5.5V supply lets the same PCB work on industrial 5V rails without an LDO, reducing BOM and improving MTBF in field-deployed units.
Recommended
Consumer Appliance Controller
White-goods controllers in washing machines, dishwashers, and small kitchen appliances use the PIC18F63J11-I/PT to drive seven-segment or dot-matrix displays via SPI while reading capacitive touch through the ADC channels. The 8 MHz internal oscillator with PLL simplifies EMC certification by removing the external crystal that often couples into nearby motor harnesses. The 64-pin TQFP at 10x10 mm is small enough to fit beneath the display PCB but offers enough I/O to drive triac outputs, motor relays, and door-lock solenoids directly through Darlington drivers.
Recommended
RS-232/RS-485 Field Devices
Industrial Modbus RTU slaves built around the PIC18F63J11-I/PT benefit from its two USARTs (one for the field bus, one for local diagnostics) and 5V supply tolerance that interfaces directly to legacy RS-485 transceivers without a level shifter. The 51 I/O drive status LEDs, keypads, and 4-20 mA loop references without external mux logic. Industrial -40C to +85C operation covers outdoor enclosures, and the Flash's endurance allows in-field firmware patches for protocol updates over the very same bus.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F63J11-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F63J11T-I/PT | PIC18F64J11-I/PT | PIC18F65J11-I/PT | PIC18F66J11-I/PT | PIC18F67J11-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-64 (10x10 mm) | TQFP-64 (10x10) - same | TQFP-64 (10x10) - same | TQFP-64 (10x10) - same | TQFP-64 (10x10) - same | TQFP-64 (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 8 KB | 8 KB | 16 KB | 32 KB | 48 KB | 64 KB |
| Data SRAM | 1 KB | 1 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Maximum 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 |
| Supply Voltage | 4.2 - 5.5 V | 4.2 - 5.5 V | 4.2 - 5.5 V | 4.2 - 5.5 V | 4.2 - 5.5 V | 4.2 - 5.5 V |
| I/O Pins | 51 | 51 | 51 | 51 | 51 | 51 |
| Packaging Format | Tray | Tape & Reel | Tray | Tray | Tray | Tray |
Key Differentiators
- Direct drop-in upgrade to 32 KB Flash on same 64-pin TQFP footprint (vs PIC18F65J11-I/PT)
- Industrial temperature range (-40C to +85C) standard on this part (vs PIC18F63J11-E/PT (extended grade))
- Tray packaging format with same silicon as the reel variant (vs PIC18F63J11T-I/PT)
Design Notes
Place a 100 nF ceramic decoupling capacitor within 3 mm of every VDD/VSS pair on the PIC18F63J11-I/PT. The 64-pin TQFP exposes four VDD/VSS pairs distributed around the package (pins 15-16, 29-30, 41-42, plus analog AVSS on pin 64). Adding a bulk 10 µF tantalum or aluminum-polymer capacitor near the IC supply pin reduces digital-switching transients that couple into the 10-bit ADC. The ADC also benefits from a clean AVSS return routed separately from noisy digital ground.
Reserve PGC (RB6) and PGD (RB7) as the ICSP/ICD debug pins even if you do not intend to debug in production. Microchip's PICkit 3 and ICD 3 require these pins in their default function; reassigning them to GPIO via CONFIG bits disables in-circuit debug and forces you to use a high-voltage programmer for any future firmware updates. Also configure the MCLR pin (RE3) with a 10 kohm pull-up to VDD; floating MCLR causes spurious resets and unreliable startup.
Route the 8 MHz crystal traces (OSC1/OSC2) short and symmetric, with the load capacitors within 2-3 mm of the IC. If you use the internal 8 MHz oscillator with 4x PLL instead of an external crystal, configure OSCCON correctly and add a short ground trace under the package for thermal relief. Keep analog input traces (AN0-AN13) away from digital switching lines (PWM, oscillator) to minimize ADC crosstalk; a ground guard ring around the analog pin footprint is recommended for high-impedance sources.
Compliance Information
Compliance certifications were not present in the verified distributor data; full compliance data should be requested from Microchip directly. AEC-Q100 is not applicable to standard PIC18F63J11-I/PT (industrial grade only).
