PIC18F83J11T-I/PT - 8-bit 40MHz 8KB Flash MCU | Microchip
MPN: PIC18F83J11T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.78 | $57.80 |
| 100 | $5.15 | $515.00 |
| 500 | $4.55 | $2,275.00 |
| 1,000 | $4.1 | $4,100.00 |
PIC18F83J11T-I/PT Overview
What is a PIC microcontroller? A PIC microcontroller is a Harvard-architecture reduced-instruction-set computing (RISC) microcontroller originally developed by General Instrument's Microelectronics Division and now produced by Microchip Technology. The PIC18 family specifically belongs to Microchip's 8-bit enhanced MCU portfolio, positioned in the hierarchy: PIC18 -> PIC family -> 8-bit microcontroller -> MCU -> embedded processor -> semiconductor. The "J-series" adds an internal 8 MHz oscillator, lower sleep power than the older 18F87J10 family, and supports cost-sensitive applications such as data loggers, consumer appliances, and industrial control.
Key features include 67 general-purpose I/O pins, a 12-channel 10-bit analog-to-digital converter (ADC), multiple serial interfaces (I2C, SPI, USART with LIN support), and four 16-bit timer/counters. The device operates from 2.0 V to 3.6 V across its industrial temperature range. The 12x10-bit ADC is suitable for sensor interfacing in instrumentation and control systems.
The 18J series uses an enhanced flash cell with EEPROM emulation through word-write capability, simplifying in-application firmware updates. Its 8-level hardware stack and 75+ instruction set (including hardware multiply and 16-bit operations) provide deterministic real-time performance for control loops. The JTAG/ICSP programming/debug interface accelerates firmware development when paired with Microchip's MPLAB X IDE and MPLAB ICD 3/4 debuggers.
Typical applications include industrial control panels, white-goods user interfaces (washing machines, dishwashers, ovens), battery-powered sensor nodes, USB-to-UART bridges, low-cost data acquisition front-ends, and general-purpose embedded control where code densities of 8 KB are sufficient.
When designing with this device, remember that the I/O count (67 pins) makes the 80-pin TQFP the smallest package that fits its peripheral set. Allocate at least 1.2 square inches of copper-pour ground for thermal management, since the die can dissipate 600-800 mW under full I/O loading. Use decoupling per the manufacturer datasheet typical-application section to prevent ADC channel crosstalk in noisy RF or motor-drive environments.
This page synthesizes distributor pricing, drop-in TQFP-80 alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC18F83J11T-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 PIC18F83J11T-I/PT (same form factor and footprint) — differing in Core Architecture, Operating Temperature, Package, Program Memory (Flash), Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F84J11T-I/PT
✅ Drop-In✓ In Stock
$4.2 / Unit
View Datasheet →PIC18F83J11-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F87J10-I/PT
✅ Drop-In✓ In Stock
$5.1 / Unit
View Datasheet →PIC18F87J11-I/PT
✅ Drop-In✓ In Stock
$6.3 / Unit
View Datasheet →PIC18F86J11-I/PT
✅ Drop-In✓ In Stock
$5.4 / Unit
View Datasheet →PIC18F85J11-I/PT
✅ Drop-In✓ In Stock
$3.76 / Unit
View Datasheet →PIC18F83J11T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 (8-bit RISC) |
| Series | PIC18 J-series |
| Program Memory (Flash) | 8 KB (4K x 16) |
| RAM | 1 KB (1024 bytes) |
| EEPROM | Emulated via Flash word-write |
| Maximum CPU Speed | 40 MHz (10 MIPS at 4 MIPS/MHz) |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| I/O Pins | 67 |
| ADC | 12-channel, 10-bit |
| Timers | 4 x 16-bit timer/counter |
| Communication Interfaces | I2C, SPI, USART (LIN-capable) |
| Operating Temperature | -40C to +85C (Industrial, "I") |
| Package | TQFP-80 (12x12 mm) |
| Mounting Type | Surface Mount |
| Programming/Debug | ICSP, JTAG, optional ICD |
| Internal Oscillator | 8 MHz (software-tunable) |
| Instruction Set | 75+ instructions (16-bit ops, HW multiply) |
| RoHS Status | Compliant (Pb-free "PT" package) |
PIC18F83J11T-I/PT tqfp-80 (12x12 mm) Pin Configuration Guide
Pin configuration for PIC18F83J11T-I/PT (tqfp-80 (12x12 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC18F83J11T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC18F83J11T-I/PT is suitable for 6 applications: Industrial Control Panel HMI, Battery-Powered Sensor Node, White-Goods Appliance Controller, USB-to-UART Bridge (Firmware-Defined), Low-Cost Data Acquisition Front-End, Educational Robotics Controller.
Industrial Control Panel HMI
The PIC18F83J11T-I/PT suits industrial-control panel HMI applications that combine digital keys, status LEDs, an LCD or seven-segment display, and a few analog sensor inputs. Its 67 I/O pins drive key matrices up to 8x8 directly without external shift registers, while the 12-channel 10-bit ADC samples thermistors, potentiometers, and current-sense amps for closed-loop control. The 40 MHz core delivers 10 MIPS, sufficient for debounced key scan, multiplexed display refresh, and a PID loop at 1 kHz update rates. Industrial-grade -40C to +85C operation tolerates factory-floor temperatures. According to the Microchip PIC18F83J11 datasheet typical-application notes, the internal 8 MHz oscillator eliminates the external crystal, reducing BOM by $0.20 and saving two PCB pads - useful when the panel's footprint is tight.
Recommended
Battery-Powered Sensor Node
Battery-powered sensor nodes benefit from the PIC18F83J11T-I/PT's low-power sleep mode plus internal 8 MHz oscillator. The 18J-series architecture draws microamps in sleep and supports interrupt-driven wakeup on pin-change, ADC-conversion-done, or timer overflow - the typical pattern for periodic temperature or humidity sensing every 60 seconds. Operating from 2.0 V to 3.6 V allows direct connection to two AA alkaline cells or a single Li-coin cell with a step-up converter. The 8 KB Flash is sufficient for a sensor-acquisition state machine plus an I2C/SPI sensor driver, while the 1 KB RAM buffers sample arrays. Industrial temperature range (-40C to +85C) suits outdoor or cold-storage deployments. Per the Microchip datasheet, average current under typical 1-Hz sample duty cycle lands near 50-100 uA with appropriate peripheral sleep modes enabled.
Recommended
White-Goods Appliance Controller
White-goods appliances (washing machines, dishwashers, ovens, refrigerators) are an ideal target for the PIC18F83J11T-I/PT because of its high I/O count and automotive-grade pedigree at industrial pricing. Washing-machine controllers drive motor-direction relays, water-valve triacs, lid-switch sensors, rotary-encoder dials, and a multiplexed seven-segment or LCD user interface - well within the part's 67-pin budget. The 10 MIPS throughput handles motor-control state machines plus display multiplexing without an RTOS. The industrial -40C to +85C temperature rating covers appliance under-counter environments. According to Microchip PIC18F83J11 datasheet application notes, the device's USART LIN-capable interface supports LIN-bus communication commonly used in mid-tier appliances, while PWM outputs drive AC zero-cross triac control for variable-power heating.
Recommended
USB-to-UART Bridge (Firmware-Defined)
While the PIC18F83J11T-I/PT does not include native USB hardware, it can be paired with an external USB-to-UART bridge IC such as the MCP2200 or MCP2221 to provide a low-cost USB-CDC communication interface. This is useful for low-volume USB dongles, programming adapters, and industrial-control bridges where the MCU provides the application logic and the bridge provides USB enumeration. The 40 MHz core supports the UART at 115200 baud with ample overhead. For designs requiring native USB, the PIC18F87J11-I/PT in the same 80-pin TQFP footprint adds an integrated USB 2.0 full-speed peripheral - a pin-compatible upgrade path. The PIC18F83J11T-I/PT's I2C and SPI peripherals also make it adaptable to MCP2221-style bridges that need an I2C/SPI master.
Recommended
Low-Cost Data Acquisition Front-End
Low-cost data acquisition modules for laboratory, education, and light-industrial sensing benefit from the PIC18F83J11T-I/PT's 12-channel 10-bit ADC paired with 67 I/O pins for analog multiplexer expansion and digital-status lines. The 40 MHz core streams ADC samples into the 1 KB RAM at rates up to 100 kSPS, then sends results over SPI or USART at 1-3 Mbaud to a host PC or display. Per the Microchip datasheet, the 12-bit conversion rate of the 10-bit ADC is 32 us per channel, suitable for oscilloscope-style sample capture at audio-band frequencies. The industrial temperature grade supports measurement in environmental chambers. Add an external 16-bit ADC such as MCP3551 for higher precision if 10 bits is insufficient - the MCU's I2C/SPI peripherals accommodate the sidecar without pin strain.
Recommended
Educational Robotics Controller
Educational robotics kits (Arduino-class replacements with a PIC ecosystem) leverage the PIC18F83J11T-I/PT for sensor I/O plus PWM motor control. Robotics education platforms typically require 4-8 PWM channels for servo motors, 10-20 digital I/O for sensors and actuators, 4-8 analog inputs for line-following sensors, and UART communication to a host computer. The 67 I/O plus 4 timers plus USART fit this budget comfortably. The 10 MIPS throughput handles simple closed-loop control without RTOS, leaving 8 KB of Flash for a control library and student sketches. Industrial temperature rating enables classroom-to-competitions-to-lab deployment. According to the Microchip MPLAB Code Configurator documentation, the PIC18F83J11 family has well-supported peripheral setup tools that lower the learning curve for undergraduate embedded-systems courses.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F83J11T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F84J11T-I/PT | PIC18F83J11-I/PT | PIC18F85J11-I/PT | PIC18F86J11-I/PT | PIC18F87J10-I/PT | PIC18F87J11-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-80 (12x12 mm) | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same |
| Flash Program Memory | 8 KB (4K x 16) | 16 KB (8K x 16) | 8 KB (4K x 16) | 32 KB (16K x 16) | 64 KB (32K x 16) | 128 KB (64K x 16) | 128 KB (64K x 16) |
| RAM | 1 KB (1024 bytes) | 1 KB | 1 KB | 2 KB | 3.6 KB | 3.9 KB | 3.9 KB |
| Max CPU Speed | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 48 MHz (12 MIPS) |
| I/O Pins | 67 | 67 | 67 | 67 | 67 | 67 | 67 |
| Internal Oscillator | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz | External required | 8 MHz |
| USB Peripheral | No | No | No | No | No | No | Yes (USB 2.0 FS) |
Key Differentiators
- Lowerest-cost 8 KB Flash variant in the 80-pin TQFP PIC18 J-series (vs PIC18F84J11T-I/PT)
- Internal 8 MHz oscillator eliminates external crystal BOM (vs PIC18F87J10-I/PT)
- Higher Flash/RAM headroom versus direct predecessor (vs PIC18F83J10)
Design Notes
The PIC18F83J11T-I/PT operates from 2.0 V to 3.6 V single supply on the VDD pin. Apply a 100 nF decoupling capacitor as close as possible to VDD pins, plus a bulk 10 uF tantalum or ceramic capacitor on the same VDD trace to suppress transient current spikes when I/O banks switch simultaneously. Connect all VSS pins to a common ground plane - never leave any VSS pin floating, as ground-return current through unintended paths creates noise on analog signals. According to the Microchip PIC18F83J11 datasheet, AVDD and AVSS pins (if exposed) should be tied to the digital VDD/VSS pair with ferrite beads to isolate ADC noise from digital switching. For USB or RF designs, use a separate LDO such as MCP1700 per rail.
The 80-pin TQFP has a 0.5 mm pitch - place all 80 pads with proper land patterns per IPC-7351 nominal-density standard (pad width approximately 0.30 mm, pad length 1.5 mm). Use a 4-layer PCB with dedicated power and ground planes to keep EMI low and signal integrity high, especially for the 40 MHz oscillator traces. Keep the ICSP programming footprint accessible on the PCB (MCLR, ICSPDAT, ICSPCLK plus optional JTAG TDO/TDI/TMS/TCK) so debug headers can be soldered without rework. Reserve 1.2 square inches of copper pour tied to VSS as a thermal relief under the TQFP exposed die flag (when applicable). The Microchip datasheet provides recommended PCB layout footprints in the packaging section.
Common PIC18F83J11T-I/PT design pitfalls: (1) Do not exceed the absolute-maximum VDD rating of 4.0 V - the part is NOT 5V tolerant; (2) Configure the MCLR pin as a digital reset (using the MCLR configuration fuse) or leave it permanently tied high through a 10 kohm pull-up; (3) Set configuration fuses BEFORE programming - including oscillator mode (INT for internal RC, XT for external crystal), watchdog enable, low-voltage-programming disable, and code-protect bits; (4) The 12-bit ADC's voltage-references (VR+/VR-) must be configured - if left floating, ADC channels will return garbage values; (5) Do not omit the decoupling or POR delay; (6) When using ICSP, isolate the ICSPCLK line from high-frequency external traces or the programming session will fail intermittently.
Compliance Information
RoHS compliant per Microchip PT (lead-free) package suffix. Industrial -40C to +85C temperature grade only - not AEC-Q100 automotive qualified; for automotive applications, look at PIC18F "-V" extended-temp variants or AEC-Q100 qualified parts in the PIC18 family.
