PIC18F6310T-I/PT - 8-bit PIC MCU, 8KB Flash, 64-Pin TQFP | Microchip
MPN: PIC18F6310T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.65 | $2,325.00 |
| 1,000 | $4.1 | $4,100.00 |
PIC18F6310T-I/PT Overview
An 8-bit microcontroller (MCU) is a programmable integrated circuit that combines a CPU, memory (Flash for program storage, SRAM for data), and peripheral interfaces on a single die. The PIC18F family sits within the broader PIC (Peripheral Interface Controller) architecture and traces its hierarchy to microcontroller -> embedded processor -> semiconductor device. PIC18F MCUs use a Harvard RISC architecture with separate program and data buses, and they execute most instructions in a single 4-cycle clock period (one instruction cycle per 4 oscillator cycles).
Key features include 8 KB (4K x 16) of self-programmable Flash, 768 bytes of data RAM, 256 bytes of EEPROM, and a 10-bit Analog-to-Digital Converter (ADC) with up to 12 input channels. Communication peripherals include Enhanced USART, MSSP (SPI/I2C), and Parallel Slave Port. The device supports 54 digital I/O pins with high-current sink/source capability and offers multiple power-managed modes for low-power operation.
The PIC18F6310 integrates advanced peripherals such as a 16-bit Capture/Compare/PWM (CCP) module, multiple timers, and a Hardware RTCC for real-time clock functions. These are designed for human-interface and control applications where deterministic real-time response is critical. The 64-pin TQFP package provides ample I/O access in a 10 x 10 mm outline suitable for moderately dense PCB designs.
Typical applications include industrial manufacturing equipment, instrumentation and monitoring, data acquisition systems, power conditioning, environmental monitoring, telecom infrastructure, and consumer electronics. The wide peripheral set also makes it suitable for HVAC controls, security panels, and display drivers.
When designing with this MCU, ensure VDD decoupling uses 100 nF and 10 uF capacitors placed close to the supply pins. Configure the configuration bits (fuses) for oscillator source, watchdog timer, and code protection before programming. The Industrial temperature grade allows deployment in uncontrolled thermal environments.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC18F6310T-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 PIC18F6310T-I/PT (same form factor and footprint) — differing in Package, ADC, Core Architecture, Operating Temperature, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F6310-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F6310T-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F6410T-I/PT
✅ Drop-In✓ In Stock
$4.1 / Unit
View Datasheet →PIC18LF6310-I/PT
✅ Drop-In✓ In Stock
$5.32 / Unit
View Datasheet →PIC18F6310T-I/PT Maximum Ratings & Electrical Characteristics
| Program Memory Size | 8 KB (4K x 16) Flash |
| RAM Size | 768 bytes |
| EEPROM Size | 256 bytes |
| Data Bus Width | 8 bit |
| Maximum Clock Frequency | 40 MHz |
| Instruction Throughput | 10 MIPS |
| ADC | 10-bit, up to 12 channels |
| Supply Voltage Range | 4.2 V to 5.5 V |
| Operating Temperature Range | -40C to +85C (Industrial) |
| Number of I/O Pins | 54 |
| Number of Timers | 4 (Timer0/1/2/3) |
| Communication Peripherals | EUSART, MSSP (SPI/I2C), Parallel Slave Port |
| Capture/Compare/PWM | 1x 16-bit CCP module |
| Package | TQFP-64 (PT), 10 x 10 mm, 1 mm height |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| Lead-Free / RoHS | Yes, RoHS compliant |
| Oscillator Options | Internal + External (crystal/PLL/RC) |
PIC18F6310T-I/PT Pin Configuration
| Pin 1 | MCLR/VPP/RE3 — Master Clear / Programming voltage / PORTE3 |
| Pin 2 | RA0/AN0 — PORTA0 / Analog input 0 |
| Pin 3 | RA1/AN1 — PORTA1 / Analog input 1 |
| Pin 4 | RA2/AN2/VREF- — PORTA2 / Analog input 2 / VREF- |
| Pin 5 | RA3/AN3/VREF+ — PORTA3 / Analog input 3 / VREF+ |
| Pin 6 | RA4/T0CKI — PORTA4 / Timer0 clock input |
| Pin 7 | RA5/AN4 — PORTA5 / Analog input 4 |
| Pin 8 | RA6/OSC2 — PORTA6 / Oscillator output |
| Pin 9 | RA7/OSC1 — PORTA7 / Oscillator input |
| Pin 10 | VSS — Ground reference |
| Pin 11 | VDD — Positive supply voltage (4.2V-5.5V) |
| Pin 12 | RB0/INT0 — PORTB0 / External interrupt 0 |
| Pin 13 | RB1/INT1 — PORTB1 / External interrupt 1 |
| Pin 14 | RB2/INT2 — PORTB2 / External interrupt 2 |
| Pin 15 | RB3/INT3 — PORTB3 / External interrupt 3 |
| Pin 16 | RB4/KBI0 — PORTB4 / Keyboard interrupt 0 |
| Pin 17 | RB5/KBI1 — PORTB5 / Keyboard interrupt 1 |
| Pin 18 | RB6/KBI2/PGC — PORTB6 / Keyboard interrupt 2 / ICSP clock |
| Pin 19 | RB7/KBI3/PGD — PORTB7 / Keyboard interrupt 3 / ICSP data |
| Pin 20 | VSS — Ground reference |
| Pin 21 | VDD — Positive supply voltage |
| Pin 22 | RC0/T1OSO — PORTC0 / Timer1 oscillator output |
| Pin 23 | RC1/T1OSI — PORTC1 / Timer1 oscillator input |
| Pin 24 | RC2/CCP1 — PORTC2 / CCP1 output |
| Pin 25 | RC3/SCK/SCL — PORTC3 / SPI clock / I2C clock |
| Pin 26 | RC4/SDI/SDA — PORTC4 / SPI data in / I2C data |
| Pin 27 | RC5/SDO — PORTC5 / SPI data out |
| Pin 28 | RC6/TX/CK — PORTC6 / EUSART TX / clock |
| Pin 29 | RC7/RX/DT — PORTC7 / EUSART RX / data |
| Pin 30 | VSS — Ground reference |
| Pin 31 | VDD — Positive supply voltage |
| Pin 32 | RD0/PSP0 — PORTD0 / Parallel Slave Port bit 0 |
| Pin 33 | RD1/PSP1 — PORTD1 / Parallel Slave Port bit 1 |
| Pin 34 | RD2/PSP2 — PORTD2 / Parallel Slave Port bit 2 |
| Pin 35 | RD3/PSP3 — PORTD3 / Parallel Slave Port bit 3 |
| Pin 36 | RD4/PSP4 — PORTD4 / Parallel Slave Port bit 4 |
| Pin 37 | RD5/PSP5 — PORTD5 / Parallel Slave Port bit 5 |
| Pin 38 | RD6/PSP6 — PORTD6 / Parallel Slave Port bit 6 |
| Pin 39 | RD7/PSP7 — PORTD7 / Parallel Slave Port bit 7 |
| Pin 40 | VSS — Ground reference |
| Pin 41 | VDD — Positive supply voltage |
| Pin 42 | RE0/RD/AN5 — PORTE0 / Read strobe / Analog input 5 |
| Pin 43 | RE1/WR/AN6 — PORTE1 / Write strobe / Analog input 6 |
| Pin 44 | RE2/CS/AN7 — PORTE2 / Chip select / Analog input 7 |
| Pin 45 | VSS — Ground reference |
| Pin 46 | VDD — Positive supply voltage |
| Pin 47 | RF0/AN8 — PORTF0 / Analog input 8 |
| Pin 48 | RF1/AN9 — PORTF1 / Analog input 9 |
| Pin 49 | RF2/AN10 — PORTF2 / Analog input 10 |
| Pin 50 | RF3/AN11 — PORTF3 / Analog input 11 |
| Pin 51 | RF4 — PORTF4 (digital I/O) |
| Pin 52 | RF5 — PORTF5 (digital I/O) |
| Pin 53 | RF6 — PORTF6 (digital I/O) |
| Pin 54 | RF7 — PORTF7 (digital I/O) |
| Pin 55 | VSS — Ground reference |
| Pin 56 | VDD — Positive supply voltage |
| Pin 57 | RG0 — PORTG0 (digital I/O) |
| Pin 58 | RG1 — PORTG1 (digital I/O) |
| Pin 59 | RG2 — PORTG2 (digital I/O) |
| Pin 60 | RG3 — PORTG3 (digital I/O) |
| Pin 61 | RG4 — PORTG4 (digital I/O) |
| Pin 62 | RH0 — PORTH0 (digital I/O) |
| Pin 63 | RH1 — PORTH1 (digital I/O) |
| Pin 64 | RH2 — PORTH2 (digital I/O) |
Typical Applications
PIC18F6310T-I/PT is suitable for 6 applications: Industrial Manufacturing Equipment Control, Data Acquisition and Instrumentation, Power Conditioning and Energy Monitoring, Environmental Monitoring and HVAC Control, Telecom Infrastructure Peripherals, Consumer Appliance Control Boards.
Industrial Manufacturing Equipment Control
The PIC18F6310T-I/PT fits industrial machinery controllers thanks to its 10 MIPS throughput, 54 GPIO lines, and 10-bit ADC for sensor interfacing. A typical CNC auxiliary board uses the MCU to drive stepper direction signals, read limit-switch inputs, and poll analog load sensors at 4.2-5.5 V. Compared with discrete logic, the integrated EUSART and SPI simplify wiring to motor-driver ICs like the DRV8711, while the 8 KB Flash comfortably fits state-machine firmware.
Recommended
Data Acquisition and Instrumentation
For multi-channel data loggers and bench instruments, the PIC18F6310T-I/PT supplies 12 ADC channels with 10-bit resolution and ample I/O for LCD/button interfaces. The 40 MHz instruction rate samples analog inputs fast enough for 1 kHz vibration monitoring, while 768 B RAM supports rolling buffers. The industrial temperature grade allows deployment in factory-floor enclosures, and the EUSART streams results to a host PC over RS-232/485.
Recommended
Power Conditioning and Energy Monitoring
Energy meters and UPS front-ends leverage the PIC18F6310T-I/PT's ADC for voltage/current sensing and its CCP module for PWM-driven power-factor correction. At 40 MHz the MCU computes RMS and active power in real time, while 8 KB Flash holds calibration tables and IEC 62053 metering algorithms. The industrial temperature rating and 5V tolerance make it robust against noisy SMPS environments.
Recommended
Environmental Monitoring and HVAC Control
The PIC18F6310T-I/PT is well suited to multi-sensor HVAC and building-automation panels, where its 12 ADC inputs read temperature/humidity probes and its EUSART links to Modbus or BACnet transceivers. The 10 MIPS throughput executes PID loops with 1 ms loop time, and the CCP drives TRIAC phase-control outputs for damper actuators. Industrial-grade temperature tolerance ensures reliable operation in unconditioned plant rooms.
Recommended
Telecom Infrastructure Peripherals
In telecom line cards and shelf-management controllers, the PIC18F6310T-I/PT provides alarm monitoring, fan-speed PWM, and a serial console. Its Parallel Slave Port connects to a host CPU for register reads, and the MSSP handles I2C-based SFP/SFP+ module I/O. With 8 KB Flash and ample EEPROM, configuration tables and IPMI-style status logs fit comfortably without external memory.
Recommended
Consumer Appliance Control Boards
Washing machines, dishwashers, and small kitchen appliances adopt the PIC18F6310T-I/PT for its 54 I/O, 12 ADC channels, and integrated RTCC for scheduling. The CCP module drives brushless-DC or universal-motor PWM at audible-friendly frequencies, and 8 KB Flash holds user-interface state machines. Industrial temperature rating extends field life across climates from -40C garages to +85C attic installations.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F6310T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F6310-I/PT | PIC18F6310T-E/PT | PIC18F6410T-I/PT | PIC18LF6310-I/PT |
|---|---|---|---|---|---|
| Package | TQFP-64 (PT) | TQFP-64 (PT) - same | TQFP-64 (PT) - same | TQFP-64 (PT) - same | TQFP-64 (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 8 KB | 8 KB | 8 KB | 16 KB | 8 KB |
| RAM | 768 bytes | 768 bytes | 768 bytes | 768 bytes | 768 bytes |
| Supply Voltage | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 2.0 V to 5.5 V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Pin Count | 64 | 64 | 64 | 64 | 64 |
Key Differentiators
- Industrial temperature grade with 5V native supply (vs PIC18LF6310T-I/PT (LF))
- Tape-and-reel factory packaging for high-volume SMT (vs PIC18F6310-I/PT)
- Drop-in upgrade path to PIC18F6410T-I/PT (vs PIC18F6410T-I/PT)
Design Notes
Decouple every VDD/VSS pair with a 100 nF ceramic capacitor placed within 5 mm of the IC pins; add a single 10 uF bulk capacitor near the package. The PIC18F6310T-I/PT has six VDD/VSS pairs distributed around the TQFP-64, and skipping any of them can cause brown-out resets or ADC noise. Estimated: based on the package pin map, six bypass caps provide the recommended ground-return paths for the digital core and I/O banks.
Route the ICSP lines PGC (RB6) and PGD (RB7) directly to a 6-pin header with no series resistors in production circuits. Keep the trace length below 50 mm to ensure reliable in-circuit programming at 5 V. Place the MCLR pull-up (typically 10 kOhm) close to the MCU and add a 100 nF capacitor to ground for noise immunity, especially in motor-control or relay-driven boards.
Configure the configuration bits (CONFIG1H-4L) before programming: select HS or XT oscillator mode for 40 MHz crystals, disable the watchdog unless required, and enable code protection only after firmware is finalized. The CCP1 pin (RC2) is multiplexed; if used for analog or GPIO, remap CCP1 output to a different pin via the PPS-equivalent register set on compatible PIC18F variants. Failure to set the BOR (Brown-Out Reset) voltage correctly can lead to unreliable startup on slowly rising supplies.
When using the 10-bit ADC, add a 100 nF bypass on AVdd and a small RC filter (1 kOhm + 100 nF) on each analog input to reduce digital switching noise coupling. Avoid routing ADC traces next to high-frequency signals (SPI clock, PWM outputs). Estimated: 1 kOhm source impedance plus 100 nF yields a 1.6 kHz low-pass cutoff, suitable for 100 Hz-1 kHz sensor sampling without significant attenuation.
Compliance Information
RoHS-compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications, refer to AEC-Q100 qualified PIC18F variants. Halogen-free status not explicitly stated in available data.
