PIC18F65J10T-I/PT - 8-bit 40MHz 32KB Flash MCU TQFP-64 | Microchip
MPN: PIC18F65J10T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.18 | $5.18 |
| 10 | $4.72 | $47.20 |
| 100 | $4.2 | $420.00 |
| 500 | $3.78 | $1,890.00 |
| 1,000 | $3.35 | $3,350.00 |
PIC18F65J10T-I/PT Overview
An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, memory, and I/O peripherals onto a single silicon die, executing one byte-wide instruction per cycle. Within the broader taxonomy, the PIC18F65J10 belongs to Microchip's PIC18 family -> 8-bit PIC MCU category -> Microcontroller -> Microprocessor Unit -> Semiconductor. PIC18 devices sit above baseline PIC10/12/16 MCUs in register width, instruction throughput (16-bit wide opcode with 8-bit data path), and peripheral integration, but below the dsPIC/PIC32 32-bit families in raw computational performance.
Key differentiating features of this part include Microchip's nanoWatt XLP deep-sleep current of approximately 1 nA, self-programmability under firmware control via ICSP, and CIP (Core Independent Peripherals) such as the mTouch capacitive touch engine that offload sensing tasks from the CPU. The device also implements a wide operating voltage window of 2.0V to 3.6V (with 4.2V-5.5V noted on the digchip summary indicating legacy 5V-tolerance on digital inputs), enabling direct interfacing with 5V peripherals. Five programmable timer modules (Timer0-Timer4 variants and capture/compare) and two analog comparators round out the analog/mixed-signal capability.
Typical applications include industrial automation controllers, automotive body and comfort electronics (LIN nodes), USB/HID human-interface devices, low-cost graphic LCD panels, sensor hub nodes, and consumer appliances. The combination of large RAM relative to Flash and dual I2C/SPI interfaces makes the PIC18F65J10 well suited to multi-protocol gateway designs bridging RS-232, LIN, and I2C sensor clusters. The 64-pin TQFP package also exposes enough I/O to drive small TFT or segment LCD panels directly without external drivers.
When designing with this device, ensure VDD decoupling uses a 100 nF ceramic capacitor placed within 5 mm of the package power pin, and use the ICSP programming header per Microchip application note DS51519E for reliable in-circuit programming. Source MCLR through the recommended 10 kohm pull-up with a 100 nF cap for noise immunity, especially in electrically noisy industrial environments.
Drop-in alternatives for PIC18F65J10T-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 PIC18F65J10T-I/PT (same form factor and footprint) — differing in ADC, Package, I/O Pins, Supply Voltage (VDD), Timers.
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View Datasheet →PIC18F65J10T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 (8-bit, RISC) |
| Program Memory (Flash) | 32 KB (16K x 16) |
| RAM | 2 KB |
| Maximum CPU Frequency | 40 MHz |
| Supply Voltage (VDD) | 2.0 V to 3.6 V (3.3V nominal) |
| I/O Pins | 54 |
| ADC | 11 channels x 10-bit |
| Analog Comparators | 2 |
| Timers | 5 (8-bit and 16-bit) |
| Serial Interfaces | 2x I2C/SPI, 2x UART (LIN-capable) |
| Operating Temperature | -40C to +85C (Industrial, "I") |
| Package | 64-pin TQFP (10x10 mm, 1.0 mm height) |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 hours) |
| RoHS Status | Compliant |
PIC18F65J10T-I/PT Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active low |
| 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 — PORTA bit 5 / Analog input 4 |
| Pin 8 | VDD — Positive supply voltage (3.3V nominal) |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RA6/OSC2 — PORTA bit 6 / Oscillator output |
| Pin 11 | RA7/OSC1 — PORTA bit 7 / Oscillator input |
| Pin 12 | RB0/INT0 — PORTB bit 0 / External interrupt 0 |
| Pin 13 | RB1/INT1 — PORTB bit 1 / External interrupt 1 |
| Pin 14 | RB2/INT2 — PORTB bit 2 / External interrupt 2 |
| Pin 15 | RB3/INT3 — PORTB bit 3 / External interrupt 3 |
| Pin 16 | RB4/KBI0 — PORTB bit 4 / Keyboard interrupt 0 |
| Pin 17 | RB5/KBI1 — PORTB bit 5 / Keyboard interrupt 1 |
| Pin 18 | RB6/KBI2/PGC — PORTB bit 6 / KBI2 / ICSP clock |
| Pin 19 | RB7/KBI3/PGD — PORTB bit 7 / KBI3 / ICSP data |
| Pin 20 | VSS — Ground reference |
| Pin 21 | VDD — Positive supply voltage (3.3V nominal) |
| Pin 22 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / clock input |
| Pin 23 | RC1/T1OSI — PORTC bit 1 / Timer1 oscillator input |
| Pin 24 | RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM 1 |
| Pin 25 | RC3/SCK1/SCL1 — PORTC bit 3 / SPI1 clock / I2C1 clock |
| Pin 26 | RC4/SDI1/SDA1 — PORTC bit 4 / SPI1 data in / I2C1 data |
| Pin 27 | RC5/SDO1 — PORTC bit 5 / SPI1 data out |
| Pin 28 | RC6/TX1/CK1 — PORTC bit 6 / UART1 transmit / clock |
| Pin 29 | RC7/RX1/DT1 — PORTC bit 7 / UART1 receive / data |
| Pin 30 | VSS — Ground reference |
| Pin 31 | VDD — Positive supply voltage (3.3V nominal) |
| Pin 32 | RD0 — PORTD bit 0 |
| Pin 33 | RD1 — PORTD bit 1 |
| Pin 34 | RD2 — PORTD bit 2 |
| Pin 35 | RD3 — PORTD bit 3 |
| Pin 36 | RD4 — PORTD bit 4 |
| Pin 37 | RD5 — PORTD bit 5 |
| Pin 38 | RD6 — PORTD bit 6 |
| Pin 39 | RD7 — PORTD bit 7 |
| Pin 40 | VSS — Ground reference |
| Pin 41 | VDD — Positive supply voltage (3.3V nominal) |
| Pin 42 | RE0/RD — PORTE bit 0 / Parallel slave port read |
| Pin 43 | RE1/WR — PORTE bit 1 / Parallel slave port write |
| Pin 44 | RE2/CS — PORTE bit 2 / Parallel slave port chip select |
| Pin 45 | VSS — Ground reference |
| Pin 46 | VDD — Positive supply voltage (3.3V nominal) |
| Pin 47 | RF0 — PORTF bit 0 / Analog input 5 |
| Pin 48 | RF1 — PORTF bit 1 / Analog input 6 |
| Pin 49 | RF2 — PORTF bit 2 / Analog input 7 |
| Pin 50 | RF3 — PORTF bit 3 / Analog input 8 |
| Pin 51 | RF4 — PORTF bit 4 / Analog input 9 |
| Pin 52 | RF5 — PORTF bit 5 / Analog input 10 |
| Pin 53 | RF6 — PORTF bit 6 |
| Pin 54 | RF7 — PORTF bit 7 |
| Pin 55 | VSS — Ground reference |
| Pin 56 | RG0 — PORTG bit 0 |
| Pin 57 | RG1 — PORTG bit 1 |
| Pin 58 | RG2 — PORTG bit 2 |
| Pin 59 | RG3 — PORTG bit 3 |
| Pin 60 | RG4 — PORTG bit 4 |
| Pin 61 | RG5 — PORTG bit 5 / CCP2 |
| Pin 62 | RG6 — PORTG bit 6 |
| Pin 63 | RG7 — PORTG bit 7 |
| Pin 64 | AVDD — Analog positive supply (connect to VDD) |
Typical Applications
PIC18F65J10T-I/PT is suitable for 6 applications: Industrial Automation Controller, Automotive LIN Body Electronics, USB HID Human Interface Device, Graphic LCD / Segment Display Controller, IoT Sensor Hub Node, Consumer Appliance Control Board.
Industrial Automation Controller
The PIC18F65J10T-I/PT's 40 MHz PIC18 core delivering 10 MIPS, 54 GPIO, dual I2C/SPI interfaces, and dual UART with LIN support make it well suited to industrial PLCs, sensor aggregation nodes, and small motor drivers. The 11-channel 10-bit ADC handles multiple 4-20 mA or 0-10V sensor inputs through external signal conditioning, while the 2 KB RAM is adequate for typical SCADA-style telemetry buffers. The 3.3V core reduces power dissipation versus 5V designs, important in DIN-rail mounted enclosures with limited thermal headroom. Its -40C to +85C industrial temperature rating supports factory-floor deployment. Pair with the MCP2515 CAN controller (PIC18F65J10 lacks native CAN) or the MCP23017 I/O expander when more than 54 I/O are needed for distributed I/O modules.
Recommended
Automotive LIN Body Electronics
The PIC18F65J10T-I/PT's dual UART peripherals include LIN 1.3 / 2.0 hardware support, eliminating the need for an external LIN transceiver's protocol overhead on the MCU side. The 32 KB Flash holds typical LIN node firmware including LIN descriptor file (LDF) tables and basic UDS diagnostics, while 2 KB RAM is adequate for short message buffers. The 3.3V core operates directly from a 12V battery via a 3.3V LDO with minimal quiescent current, important for always-on body modules. The 64-pin TQFP exposes enough GPIO for door/window/seat switch matrix scanning and LED driver control. For AEC-Q100 qualified variants, Microchip offers the same die in automotive grade with extended qualification testing.
Recommended
USB HID Human Interface Device
The PIC18F65J10T-I/PT can be paired with the Microchip PIC18F14K50 USB 2.0 full-speed controller, or used standalone with bit-banged USB for low-speed HID class devices such as keyboards, mice, and custom HID peripherals. The 40 MHz core provides sufficient bandwidth for USB polling at 1 ms intervals with concurrent scanning of up to 54 matrix keys or capacitive touch sensors. The 32 KB Flash accommodates USB stack, HID report descriptors, and application logic, while 2 KB RAM handles HID report buffers and protocol stack scratch space. The 11-channel 10-bit ADC is ideal for analog joystick or potentiometer input alongside digital button scanning in gaming peripherals.
Recommended
Graphic LCD / Segment Display Controller
The PIC18F65J10T-I/PT's 54 GPIO pins provide sufficient drive to control small TFT LCDs (up to 320x240 QVGA via parallel interface) or large segment LCDs (up to 256 segments with external charge-pump drivers). The 2 KB RAM serves as a framebuffer for smaller displays or a page buffer for partial TFT updates. The dual SPI interfaces allow simultaneous connection to a TFT controller (e.g., ILI9341) and an external Flash memory for image storage, while I2C drives touch panel controllers like the FT6336. The 32 KB Flash holds graphics libraries, font tables, and UI state machines for appliances, instruments, and consumer devices.
Recommended
IoT Sensor Hub Node
The PIC18F65J10T-I/PT's nanoWatt XLP deep-sleep current of approximately 1 nA enables multi-year battery life in wireless sensor nodes when combined with sub-GHz transceivers like the MRF89XA or LoRa modules. The 11-channel ADC multiplexes multiple analog sensors (temperature, light, humidity) using a single MCU pin set, while dual I2C buses support multiple digital sensors (accelerometer, pressure, gas) on a shared bus. The 54 GPIO allow LED indicator control, push-button user input, and SPI connection to radio modules. The 32 KB Flash accommodates sensor fusion libraries, RF protocol stacks (e.g., custom or Wireless M-Bus), and OTA bootloader space for field-upgradable firmware.
Recommended
Consumer Appliance Control Board
The PIC18F65J10T-I/PT is well matched to white-goods and small-appliance control boards where 32 KB Flash holds the user-interface state machine, motor control routines (washer cycles, dishwasher programs), and safety monitoring logic. The dual UART supports simultaneous connection to a user-interface display module and a sensor board or diagnostic port, while 11 ADC channels handle temperature, water level, and motor current sensing. The 3.3V core with 2.0V-3.6V tolerance operates from a small switching supply with wide input range (90-265 VAC). The 64-pin TQFP provides sufficient I/O for relay drivers, triac interfaces, and keypad scanning in mid-complexity appliance designs.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F65J10T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F65J10-I/PT | PIC18F66J10-I/PT | PIC18F67J10-I/PT | PIC18F65J11-I/PT | PIC18F65J15-I/PT | PIC18F85J10-I/PT |
|---|---|---|---|---|---|---|---|
| Package | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-80 (12x12 mm) - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 64 KB | 64 KB | 32 KB | 48 KB | 32 KB |
| RAM | 2 KB | 2 KB | 4 KB | 4 KB | 4 KB | 4 KB | 2 KB |
| CPU Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| I/O Pins | 54 | 54 | 54 | 54 | 54 | 54 | 69 |
| ADC Channels | 11 x 10-bit | 11 x 10-bit | 11 x 10-bit | 11 x 10-bit | 11 x 10-bit | 11 x 10-bit | 12 x 10-bit |
| Packaging | Tape & Reel | Tray | Tray | Tray | Tray | Tray | Tray |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Industrial temperature grade and tape-and-reel packaging (vs PIC18F65J10-I/PT (tray))
- Same 64-pin TQFP footprint as 67J10 upgrade path (vs PIC18F67J10-I/PT)
- Dual I2C/SPI plus dual UART with LIN hardware (vs PIC18F65J11-I/PT)
Design Notes
The PIC18F65J10T-I/PT requires a 3.3V nominal VDD supply with decoupling capacitors: a 100 nF ceramic X7R placed within 5 mm of each VDD/VSS pair (8 pairs across the package), plus a single 10 uF bulk tantalum or ceramic capacitor near the package. Per Microchip datasheet DS39774, the core draws approximately 15 mA at 40 MHz active and 1 nA in deep sleep (nanoWatt XLP). Avoid noisy switching regulators on the same supply rail - use a dedicated linear LDO like MCP1700 for noise-sensitive analog sections, and place a ferrite bead between digital and analog AVDD/AVSS if separating the supply domains.
Place the 40 MHz primary oscillator or external crystal within 10 mm of OSC1/OSC2 (pins 11/10) with load capacitors sized per the crystal ESR (typically 15-33 pF for 10-40 MHz crystals). Keep trace lengths to the ICSP header PGC/PGD (pins 18/19) under 50 mm and route away from high-current switching traces to prevent programming interference. The 64-pin TQFP land pattern should follow IPC-7351 nominal density with 0.5 mm pitch pads and 0.15 mm solder mask expansion for reliable reflow.
Do not connect MCLR (pin 1) directly to VDD without the recommended 10 kohm pull-up and 100 nF decoupling cap; this risks brownout reset glitches in noisy environments. When using the parallel slave port on PORTE, set CONFIG3H bit PSPDIS high to disable PSP and free RE0-RE2 as digital GPIO, otherwise unexpected bus contention can occur. Watch for Flash endurance limits of 1,000 erase/write cycles typical and 100,000 for EEPROM - implement wear leveling if storing frequently-updated variables to EEPROM. Lastly, do not exceed 5.5V on any digital input even though core VDD is 3.3V; use the internal 5V-tolerant input structure as documented, but verify absolute maximums before design sign-off.
Compliance Information
RoHS and REACH compliant per Microchip product page; lead-free reflow profile per JEDEC J-STD-020. Industrial temperature grade (I suffix, -40C to +85C) only - not AEC-Q100 qualified. For AEC-Q100 automotive applications, request PIC18F65J10-I/PT automotive grade from Microchip.
