PIC18F8620T-E/PT - 8-Bit 25MHz 64KB Flash MCU 80-TQFP | Microchip
MPN: PIC18F8620T-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $16.95 | $16.95 |
| 10 | $15.25 | $152.50 |
| 100 | $13.65 | $1,365.00 |
| 500 | $12.4 | $6,200.00 |
| 1,000 | $11.1 | $11,100.00 |
PIC18F8620T-E/PT Overview
An 8-bit microcontroller is a single-chip computer built around an 8-bit data path that executes instructions in one to four clock cycles. The PIC18F family extends Microchip's mid-range architecture with a RISC-based CPU, integrated peripherals, and Harvard bus organization that separates program and data memory to allow simultaneous fetch and execute operations. PIC microcontrollers sit in the broader hierarchy of microcontrollers -> microcomputers -> embedded processors -> semiconductors.
Key features include 70 I/O pins, 16 channels of 10-bit Analog-to-Digital conversion, 5 capture/compare/PWM modules, two analog comparators, two USART modules, a synchronous serial port configurable as SPI or I2C, an additional timer, external memory addressing up to 2MB, and self-programming support with In-Circuit Debug (ICD). The C-compiler-friendly instruction set and peripheral-rich architecture allow designers to implement complex control loops in a single chip.
The PIC18F8620 uses an enhanced Harvard architecture with separate program and data buses plus a 16-bit instruction word. Flash program memory supports self-write, enabling non-volatile parameter storage and bootloader operation without external EEPROM. An ICD interface allows in-system debugging through dedicated pins, simplifying firmware development and field updates.
Typical applications include automotive body and HVAC controllers, industrial automation PLCs, white-goods and appliance controls, and home-automation gateways. The 70 I/O and large package pin count enable direct connection to keypads, display panels, sensor arrays, and motor drivers without external glue logic.
When designing with the PIC18F8620T-E/PT, verify the power supply decoupling network (typically 100nF plus 10uF bulk) is placed within 5mm of VDD pins, and add a 10kΩ pull-up on MCLR to ensure a clean reset during power-up. The automotive temperature grade permits continuous operation across -40°C to +125°C without derating.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes from real-time distributor data not found on any single manufacturer page.
Drop-in alternatives for PIC18F8620T-E/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 PIC18F8620T-E/PT (same form factor and footprint) — differing in Package, ADC, Core Architecture, Timers, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F8620T-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F8620-E/PT
✅ Drop-In✓ In Stock
$6.55 / Unit
View Datasheet →PIC18F8520T-E/PT
✅ Drop-In✓ In Stock
$5.52 / Unit
View Datasheet →PIC18F85K22-E/PT
✅ Drop-In✓ In Stock
$4.55 / Unit
View Datasheet →PIC18F85K90-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.62 / Unit
View Datasheet →PIC18F8520-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.1586 / Unit
View Datasheet →PIC18F8620T-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 (8-bit RISC, enhanced Harvard) |
| Program Memory (Flash) | 64 KB (32K x 16 words) |
| Data EEPROM | 1024 bytes |
| RAM | 3840 bytes |
| Maximum Operating Frequency | 40 MHz |
| Instruction Execution Rate | 25 MIPS at 40 MHz clock |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| Operating Temperature (E suffix) | -40 °C to +125 °C |
| I/O Pins | 70 |
| ADC | 10-bit, 16 channels |
| Capture/Compare/PWM Modules | 5 |
| Comparators | 2 analog |
| USART | 2 |
| Serial Interfaces | SPI / I2C (SSP module) |
| Timers | 5 (TMR0/1/2/3 + extra) |
| Package | 80-pin TQFP (TFQFP, 12x12 mm) |
| External Memory Interface | Yes, up to 2 MB |
| In-Circuit Debug (ICD) | Yes |
| Self-Programming | Yes |
| Temperature Grade (E suffix) | Automotive / Extended |
| Mounting Type | Surface Mount, Gull-wing |
| RoHS Status | Compliant |
PIC18F8620T-E/PT 80-pin tqfp (tfqfp, 12x12 mm) Pin Configuration Guide
Pin configuration for PIC18F8620T-E/PT (80-pin tqfp (tfqfp, 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 PIC18F8620T-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC18F8620T-E/PT is suitable for 7 applications: Automotive Body Control Module, Industrial PLC and I/O Controller, White-Goods and Appliance Controller, Home-Automation Gateway, HVAC Control Board, Medical Instrument Front Panel, Marine Display and NMEA Interface.
Automotive Body Control Module
The PIC18F8620T-E/PT is a strong fit for automotive body control modules (BCMs) thanks to its 80-TQFP automotive-grade package (-40°C to +125°C), 70 I/O pins for direct door/window/lamp switch matrix wiring, and 16 channels of 10-bit ADC for analog sensor multiplexing. Five CCP/PWM modules can drive LED dimming, mirror-fold motors, and HVAC flap actuation in one chip without external logic. The 64KB self-programmable flash supports field firmware updates via CAN/UART bootloader. Place the MCU near the load-driver ICs to minimize harness traces, and use internal oscillators (INTOSC) with PLL for cost-sensitive body controllers. Compared to automotive-grade 32-bit alternatives the PIC18F8620 cuts per-unit cost while leaving 70 pins free for body wiring. The same PartStack cross-reference data confirms this MCU is selected for factory-fit BCMs.
Recommended
Industrial PLC and I/O Controller
For industrial PLC digital-input/output modules the PIC18F8620T-E/PT provides 70 I/O which can map directly to 8-10 isolated digital inputs and 8 outputs per module without external muxing. The PIC18F RISC engine at 25 MIPS comfortably executes ladder-logic-decoded scan loops in <1 ms. Dual USART plus SPI/I2C peripherals handle inter-module backplane communication and HMI panel updates. Design-tip: configure all 70 I/O as digital inputs with TTL Schmitt triggers; use the 16-channel 10-bit ADC for analog sensor channels (RTD, pressure transducers, 4-20 mA loops). The extended -40°C to +125°C temperature grade (E suffix) lets the module live in enclosed cabinets. Pair with the PIC18F85K90-E/PT family member for nanoWatt XLP low-power sleep modes between scans.
Recommended
White-Goods and Appliance Controller
The PIC18F8620T-E/PT drives washing-machine, dishwasher, and induction-cooktop control boards with a single chip: 5 CCP/PWM modules can drive BLDC motor commutation, induction-coil PWM, and the triac-fired heating element, while 16 ADC channels read NTC temperature sensors, water-level probes, and motor current. The 64KB flash holds a real-time operating system (RTOS) plus state-machine firmware for multiple appliance SKUs. Design-tip: opt for an external 16 MHz crystal plus PLL to derive the 40 MHz clock, giving accurate ADC timing for motor current sensing. Use the In-Circuit Debug (ICD) interface to flash and trace firmware during the production line. The automotive-grade -40°C to +125°C junction range handles cooking-zone heat soak reliably.
Recommended
Home-Automation Gateway
Home-automation gateways benefit from the PIC18F8620T-E/PT's dual USART (one to RS-485 wired bus, one to the wireless module), SPI/I2C peripherals for the radio (LoRa, sub-GHz, or Wi-Fi) and the user-display, plus 70 I/O for keypad/LED annunciator. The 3840 bytes of SRAM handle small protocol stacks (Modbus, BACnet) and 1024 bytes of EEPROM stores gateway configuration including pairing credentials. The 64KB flash supports full networking stack plus web/HTTP UI. Design-tip: connect the radio module via SPI for sub-GHz mesh; expose ICD for service technicians. The wide temperature range (-40°C to +125°C) suits outdoor enclosures and unheated garage rooms. For product variants requiring Wi-Fi, an external module (MRF24WG0MA) keeps the 80-TQFP PIC MCU footprint reusable.
Recommended
HVAC Control Board
In HVAC control boards the PIC18F8620T-E/PT handles analog thermistor reading (16-channel ADC), triac-driven blower motor (PWM + zero-cross comparator), modulating gas-valve control, and the LCD user interface. Five CCP/PWM outputs drive variable-speed fans, stepper-actuated dampers (via stepper controller), and the inverter-driven compressor reference. The extended -40°C to +125°C E-grade covers attic and basement installations. Use the analog comparators for zero-cross detection of the 24 VAC line to phase-angle fire triacs cleanly. The 64KB flash can store a full Modbus/Invensys-firmware image. Stack the device with an MCP8026 motor controller or a discrete triac+optocoupler chain. The same package alternative PIC18F8585-E/PT offers similar capabilities at a comparable price point.
Recommended
Medical Instrument Front Panel
Although not AEC-Q100 medical specifically, the PIC18F8620T-E/PT's -40°C to +125°C junction range suits regulated medical-device front panels such as infusion-pumps, point-of-care analyzers, and bench-top centrifuges. The 70 I/O drives a graphical LCD, matrix keypad, alarm LEDs, and stepper/brushless motor drivers without external glue logic. Two analog comparators + 16-channel ADC monitor temperature, pressure, and bubble-detect sensors. Design-tip: put the PIC18F8620 in the user-facing enclosure with the LCD; route SPI to a daughter-board for the transducer analog front-end. 1024 bytes EEPROM stores calibration data with a 200-year retention rating per Microchip datasheet. For cost-down replacement designs the PIC18F8520T-E/PT (32KB) covers entry-tier analyzers while keeping the same 80-TQFP footprint.
Recommended
Marine Display and NMEA Interface
Marine chart-plotters and multi-function displays use the PIC18F8620T-E/PT for NMEA 0183 / NMEA 2000 NMEA parsing and the user-interface MCU. Dual USART serves NMEA-0183 input (4800 baud) and the high-speed NMEA-2000 backbone bridge; SPI drives the LCD controller; 16 ADC channels read barometric, fluid-level, and battery-voltage sensors. The automotive-grade temperature range handles marine environments. Design-tip: use the external memory interface for SDRAM-backed display buffer if integrating the chart-plotter; the PIC18F8620's external-memory addressing up to 2 MB supports this. The on-chip ICD is invaluable during PCB bring-up. The same family member PIC18F8722-I/PT (128KB) provides more flash for richer chart-rendering firmware at the same 80-TQFP footprint.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F8620T-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F8620T-I/PT | PIC18F8620-E/PT | PIC18F8520T-E/PT | PIC18F85K22-E/PT |
|---|---|---|---|---|---|
| Package | 80-TQFP (PT, 12x12 mm) | 80-TQFP (PT, 12x12 mm) - same | 80-TQFP (PT, 12x12 mm) - same | 80-TQFP (PT, 12x12 mm) - same | 80-TQFP (PT, 12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Program Flash | 64 KB (32K x 16) | 64 KB - same | 64 KB - same | 32 KB (-50%) | 32 KB (-50%) |
| Data EEPROM | 1024 bytes | 1024 bytes - same | 1024 bytes - same | 1024 bytes - same | 1024 bytes - same |
| Maximum CPU Speed | 25 MIPS (40 MHz) | 25 MIPS - same | 25 MIPS - same | 25 MIPS - same | 25 MIPS - same (K-series newer peripherals) |
| Operating Temperature (E or I grade) | -40 °C to +125 °C (E grade, automotive) | -40 °C to +85 °C (I grade, industrial) | -40 °C to +125 °C - same | -40 °C to +125 °C - same | -40 °C to +125 °C - same |
| I/O Pins | 70 | 70 - same | 70 - same | 70 - same | 70 - same |
| CCP/PWM Modules | 5 | 5 - same | 5 - same | 5 - same | 5-6 (K-series different mapping) |
| ADC (10-bit) | 16 channels | 16 channels - same | 16 channels - same | 16 channels - same | Up to 16 channels - similar |
| External Memory Bus | Yes (up to 2 MB) | Yes - same | Yes - same | Yes - same | Yes - same |
Key Differentiators
- Automotive temperature grade E (-40°C to +125°C) in mainstream 64KB-flash PIC (vs PIC18F8620T-I/PT)
- Tape-and-reel packaging format for high-volume SMT lines (vs PIC18F8620-E/PT)
- 64KB flash versus the older 32KB PIC18F8520 in identical 80-TQFP (vs PIC18F8520T-E/PT)
- True 70 I/O pins plus external memory interface in 80-pin TQFP (vs PIC18F46K80-I/PT)
Design Notes
Power-supply decoupling for the PIC18F8620T-E/PT should include a 100nF ceramic bypass capacitor within 5mm of every VDD/VSS pair (the 80-pin TQFP exposes multiple VDD pins). Add a single 10uF tantalum or ceramic bulk capacitor on the main 5V rail close to the IC. Estimated: with all 70 I/O switching at full DC load, the transient current demand on the VDD rail can reach 100mA peaks; a low-ESR 10uF bulk keeps the rail within ±50mV during toggling. For battery-powered variants, add a TC650/TC651 thermal switch to shut the system down at >85°C.
Place the ICKL/oscillator crystal (or ceramic resonator) within 5-7mm of OSC1/OSC2 and route the traces as a guarded pair over a continuous ground plane. The 80-pin TQFP needs a 12x12 mm copper pad with 0.5 mm pitch gull-wing lands and a center thermal pad (typical 0.5mm thermal via spacing in a 7x7 grid). Leave the MCLR pin disconnected from any I/O-driver traces and route a 10kΩ pull-up to VDD independently. The MPLAB ICD 4 debugger interface requires dedicated PGD (RB7) and PGC (RB6) routing on the top layer for high-speed in-system programming.
Three common pitfalls: (1) Forgetting to enable the watchdog timer for fail-safe operation - the PIC18F88620 ships with WDT disabled in configuration words, so always set WDTE = ON in __CONFIG fuses. (2) Enabling internal brown-out reset (BOR) at 4.5V rather than 2.0V which can trap the MCU in POR loop during slow-rising supplies; use BOREN = PBODEN-HV only if supply rise time exceeds 5ms. (3) Treating the analog comparators as independent of the ADC - sharing the CVREF pin requires explicit configuration (CVRCON); do not assume both can coexist on the same pin without re-configuration.
When the PIC18F8620T-E/PT connects to off-board industrial bus drivers (RS-485/CAN), add a 100Ω series termination at the bus pin and a 10kΩ fail-safe bias resistor. The automotive/industrial noise environment (per ISO 7637-2) demands TVS diodes (PESD5V0L1BA or similar) on bus pins, and decoupling capacitors up to 100nF Y-rated on VDD/VSS pairs that cross the isolation barrier. Estimated: a properly TVS-protected CAN interface will withstand ±8 kV ESD contact discharge and ±15 kV air discharge, per Microchip EMC application note.
Compliance Information
RoHS compliant per Microchip material declaration; AEC-Q100 qualification N/A but automotive E-grade temperature is rated. Halogen-free and lead-free per distributor material declarations. MSL-3 moisture sensitivity per JEDEC J-STD-020 (handling required pre-reflow).
