PIC18F66J11-I/PT Microchip Integrated Circuit (Quad Flat Packages) In Stock
The PIC18F66J11-I/PT is an 8-bit PIC18 microcontroller with 64 KB of Flash, 48 MHz maximum clock, integrated ADC, and a rich peripheral set in a 64-pin TQFP package, designed for complex embedded control and communication applications. Available from stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 64
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F66J11-I/PT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.9430(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit PIC18 core clocked at up to 48 MHz with 64 KB of on-chip Flash program memory
- Integrated multi-channel ADC for direct analog sensor measurement without external converters
- 64-pin TQFP package providing ample I/O count for multi-peripheral embedded system designs
- Full peripheral set including multiple UARTs, SPI, I2C, and PWM channels on a single chip
- RoHS-compliant Pb-free package with standard SMT TQFP footprint for automated assembly
- Low-power modes enabling sleep and idle states for reduced average current in duty-cycled systems
- Self-programmable Flash supporting field firmware updates via bootloader for deployed products
Applications
The PIC18F66J11-I/PT is suited for sophisticated embedded systems requiring high I/O count and multiple communication interfaces, such as building automation controllers, industrial PLC modules, and smart energy metering units. Its 64 KB of Flash provides room for complex multi-protocol stacks including Modbus RTU, BACnet MS/TP, or proprietary wireless protocol adapters alongside application firmware. The 64-pin TQFP package supports simultaneous use of UART, SPI, and I2C peripherals for connecting displays, sensors, and radio modules without pin contention.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TQFP-64 |
| Factory Lead Time | 18Weeks |
| YTEOL | 8 |
| Has ADC | YES |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC18 |
| Clock Frequency-Max | 48MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQFP-G64 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 4 |
| Number of I/O Lines | 52 |
| Number of Serial I/Os | 2 |
| Number of Timers | 5 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TQFP64,.47SQ |
| Package Shape | SQUARE |
| Package Style | FLATPACK, THIN PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 3904 |
| ROM (words) | 65536 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 48MHz |
| Supply Current-Max | 23.2mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 2V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How much Flash memory does the PIC18F66J11-I/PT offer and how does that compare to smaller PIC18 variants?
The PIC18F66J11-I/PT provides 64 KB of Flash program memory, which is 4x the 16 KB found in smaller PIC18F variants, allowing it to host multi-protocol communication stacks such as Modbus RTU, USB HID firmware, or a proprietary OTA bootloader alongside the main application logic at up to 48 MHz clock speed.
What I/O pin count does the 64-pin TQFP package provide and why does that matter for complex boards?
The 64-pin TQFP package exposes up to approximately 50 general-purpose I/O pins depending on peripheral configuration, sufficient to simultaneously drive a multiplexed 4-digit 7-segment display, read a 4x4 keypad matrix, communicate over UART and I2C, and interface 8 analog ADC channels without GPIO expanders. This pin count simplifies PCB routing and reduces bill-of-materials cost in building automation and industrial control designs.
How does the PIC18F66J11's self-programmable Flash support over-the-air firmware updates?
The PIC18F66J11-I/PT's self-programmable Flash allows the running bootloader code to erase and rewrite application sections at 48 MHz, enabling field updates delivered over UART, I2C, SPI, or RF radio links without removing the device from the target board. This capability is essential for deployed building automation nodes and smart meters where on-site firmware servicing would be prohibitively expensive.
Which communication peripherals does the PIC18F66J11-I/PT integrate and how do they serve multi-sensor systems?
The PIC18F66J11-I/PT integrates multiple UART ports, hardware SPI, I2C, and multi-channel PWM outputs in a single 64-pin chip. This allows a single MCU to simultaneously manage a Modbus RS-485 sensor network over UART, read a real-time clock and EEPROM over I2C, control a SPI display, and drive up to 8 PWM-controlled actuators at 48 MHz without requiring co-processors or external communication ICs.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.0150 | $2.02 |
| 3+ | $1.9820 | $5.95 |
| 100+ | $1.9430 | $194.30 |
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