PIC18F8620-E/PT - 8-bit 25MHz 64KB Flash MCU | Microchip | 80-TQFP
Référence : PIC18F8620-E/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $9.95 | $9,95 |
| 10 | $8.96 | $89,60 |
| 100 | $7.97 | $797,00 |
| 500 | $7.12 | $3 560,00 |
| 1 000 | $6.55 | $6 550,00 |
PIC18F8620-E/PT Présentation
What is a PIC18 Microcontroller? PIC18F microcontrollers are 8-bit CMOS flash-based MCUs from Microchip built on an enhanced RISC Harvard architecture. They sit in the hierarchy: microcontroller -> embedded controller -> 8-bit MCU -> PIC18 family -> PIC18F sub-family -> flash-programmable MCU. PIC18F parts are positioned between baseline PIC10/12/16 and 16-bit dsPIC/PIC24 devices, optimized for C-compiler-friendly development with linear memory maps, hardware multiply, and self-programming support.
Key features include 16 channels of 10-bit Analog-to-Digital conversion, two analog comparators, five capture/compare/PWM modules, two MSSP ports configurable as SPI or I2C, an additional timer, external memory bus addressing up to 2 MB, self-programming flash, ICD (In-Circuit Debug), and 68 digital I/O pins. Operating voltage spans 4.2 V to 5.5 V with the extended -40C to +125C temperature grade.
The PIC18F8620 uses an enhanced Harvard architecture with separate program and data buses, a 16-bit instruction word, hardware 8x8 multiplier, and a 32-level hardware stack. Self-programming allows field firmware upgrades via bootloader code, while the ICD interface permits in-circuit debug with breakpoints and watchpoints. The 80-TQFP package exposes extensive I/O and peripheral pin functions for high-pin-count embedded designs.
Typical applications include industrial automation controllers, HVAC and building control, automotive body and instrument cluster electronics (extended temp), consumer appliance interfaces, security and alarm panels, and USB/HID-class embedded peripherals using the MSSP ports.
When designing with this part, ensure decoupling on VDD/VSS pairs and follow Microchip AN869 application note guidelines for analog and digital supply layout. The 'E' suffix denotes the extended -40C to +125C operating range, suitable for harsh industrial and automotive under-hood environments.
This page synthesizes distributor pricing, drop-in same-package alternatives from the same PIC18F family, and practical design notes not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour PIC18F8620-E/PT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC18F8620-E/PT (même facteur de forme et même empreinte) — différant par Package, Timers, ADC, Core Architecture, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18F8720-E/PT
✅ Remplacement direct✓ En stock
$9.3 / unité
Voir la fiche technique →PIC18F8520-I/PT
✅ Remplacement direct✓ En stock
$5.1586 / unité
Voir la fiche technique →PIC18F8585-E/PT
✅ Remplacement direct✓ En stock
$9.55 / unité
Voir la fiche technique →PIC18F85K22-E/PT
✅ Remplacement direct✓ En stock
$4.55 / unité
Voir la fiche technique →PIC18F85K90-E/PT
✅ Remplacement direct✓ En stock
$3.62 / unité
Voir la fiche technique →PIC18F8620-E/PT Valeurs maximales et caractéristiques électriques
| Family | PIC18F |
| Core | 8-bit PIC RISC (Harvard) |
| Maximum CPU Speed | 25 MHz (10 MIPS) |
| Program Memory | 64 KB (32K x 16) Enhanced Flash |
| RAM | 3840 bytes |
| EEPROM | 1024 bytes |
| I/O Pins | 68 |
| ADC | 10-bit, 16 channels |
| Comparators | 2 |
| CCP/PWM Modules | 5 |
| MSSP (SPI/I2C) Ports | 2 |
| Timers | 5 (TMR0-TMR4) |
| Operating Voltage | 4.2 V to 5.5 V |
| Température de fonctionnement | -40C to +125C (Extended, 'E' suffix) |
| Boîtier | 80-pin TQFP (12x12 mm) |
| Type de montage | Surface Mount |
| Self-Programming | Yes |
| In-Circuit Debug (ICD) | Yes |
| External Memory Bus | Yes (up to 2 MB) |
| Hardware Multiplier | 8 x 8 |
| Instruction Set | PIC18 enhanced (16-bit instructions, 75 instructions) |
| Statut RoHS | Compliant |
Configuration des broches de PIC18F8620-E/PT
| Broche 1 | MCLR — Master Clear (Reset) input, programming voltage input |
| Broche 2 | RA0/AN0 — Port A bit 0 / Analog input 0 |
| Broche 3 | RA1/AN1 — Port A bit 1 / Analog input 1 |
| Broche 4 | RA2/AN2/VREF- — Port A bit 2 / Analog input 2 / ADC VREF- |
| Broche 5 | RA3/AN3/VREF+ — Port A bit 3 / Analog input 3 / ADC VREF+ |
| Broche 6 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| Broche 7 | RA5/AN4/SS1 — Port A bit 5 / Analog input 4 / MSSP1 slave select |
| Broche 8 | RE0/RD/AN5 — Port E bit 0 / Read signal for external memory / Analog input 5 |
| Broche 9 | RE1/WR/AN6 — Port E bit 1 / Write signal for external memory / Analog input 6 |
| Broche 10 | RE2/CS/AN7 — Port E bit 2 / Chip select for external memory / Analog input 7 |
| Broche 11 | VDD — Positive supply voltage (4.2V to 5.5V) |
| Broche 12 | VSS — Ground reference |
| Broche 13 | OSC1/CLKI/RA7 — Crystal oscillator input / External clock input / Port A bit 7 |
| Broche 14 | OSC2/CLKO/RA6 — Crystal oscillator output / Clock output / Port A bit 6 |
| Broche 15 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator output / Timer1 clock input |
| Broche 16 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer1 oscillator input / CCP2 output |
| Broche 17 | RC2/CCP1 — Port C bit 2 / CCP1 output |
| Broche 18 | RC3/SCK1/SCL1 — Port C bit 3 / MSSP1 SPI clock / I2C clock |
| Broche 19 | RD0/PSP0 — Port D bit 0 / Parallel Slave Port bit 0 |
| Broche 20 | RD1/PSP1 — Port D bit 1 / Parallel Slave Port bit 1 |
| Broche 21 | RD2/PSP2 — Port D bit 2 / Parallel Slave Port bit 2 |
| Broche 22 | RD3/PSP3 — Port D bit 3 / Parallel Slave Port bit 3 |
| Broche 23 | RC4/SDI1/SDA1 — Port C bit 4 / MSSP1 SPI data in / I2C data |
| Broche 24 | RC5/SDO1 — Port C bit 5 / MSSP1 SPI data out |
| Broche 25 | RC6/TX1/CK1 — Port C bit 6 / EUSART1 transmit / clock |
| Broche 26 | RC7/RX1/DT1 — Port C bit 7 / EUSART1 receive / data |
| Broche 27 | RD4/PSP4 — Port D bit 4 / Parallel Slave Port bit 4 |
| Broche 28 | RD5/PSP5 — Port D bit 5 / Parallel Slave Port bit 5 |
| Broche 29 | RD6/PSP6/TX2 — Port D bit 6 / Parallel Slave Port bit 6 / EUSART2 transmit |
| Broche 30 | RD7/PSP7/RX2 — Port D bit 7 / Parallel Slave Port bit 7 / EUSART2 receive |
| Broche 31 | VSS — Ground reference |
| Broche 32 | VDD — Positive supply voltage (4.2V to 5.5V) |
| Broche 33 | RB0/INT0/FLT0 — Port B bit 0 / External interrupt 0 / PWM fault input |
| Broche 34 | RB1/INT1 — Port B bit 1 / External interrupt 1 |
| Broche 35 | RB2/INT2 — Port B bit 2 / External interrupt 2 |
| Broche 36 | RB3/INT3/CCP2A — Port B bit 3 / External interrupt 3 / CCP2 alternate |
| Broche 37 | RB4/KBI0 — Port B bit 4 / Interrupt-on-change bit 0 |
| Broche 38 | RB5/KBI1 — Port B bit 5 / Interrupt-on-change bit 1 |
| Broche 39 | RB6/KBI2/PGC — Port B bit 6 / Interrupt-on-change bit 2 / ICSP clock |
| Broche 40 | RB7/KBI3/PGD — Port B bit 7 / Interrupt-on-change bit 3 / ICSP data |
| Broche 41 | RF0 — Port F bit 0 |
| Broche 42 | RF1 — Port F bit 1 |
| Broche 43 | RF2 — Port F bit 2 |
| Broche 44 | RF3 — Port F bit 3 |
| Broche 45 | RF4 — Port F bit 4 |
| Broche 46 | RF5 — Port F bit 5 |
| Broche 47 | RF6 — Port F bit 6 |
| Broche 48 | RF7 — Port F bit 7 |
| Broche 49 | RG0 — Port G bit 0 |
| Broche 50 | RG1 — Port G bit 1 |
| Broche 51 | RG2 — Port G bit 2 |
| Broche 52 | RG3 — Port G bit 3 |
| Broche 53 | RG4 — Port G bit 4 |
| Broche 54 | RG5 — Port G bit 5 |
| Broche 55 | AVDD — Analog positive supply voltage |
| Broche 56 | AVSS — Analog ground reference |
| Broche 57 | RA0/AN0 — Port A bit 0 / Analog input 0 (secondary pin) |
| Broche 58 | RA1/AN1 — Port A bit 1 / Analog input 1 (secondary pin) |
| Broche 59 | RA2/AN2/VREF- — Port A bit 2 / Analog input 2 / ADC VREF- |
| Broche 60 | RA3/AN3/VREF+ — Port A bit 3 / Analog input 3 / ADC VREF+ |
| Broche 61 | RA5/AN4/SS1 — Port A bit 5 / Analog input 4 / MSSP1 slave select |
| Broche 62 | RE3 — Port E bit 3 |
| Broche 63 | RH0 — Port H bit 0 |
| Broche 64 | RH1 — Port H bit 1 |
| Broche 65 | RH2 — Port H bit 2 |
| Broche 66 | RH3 — Port H bit 3 |
| Broche 67 | RH4 — Port H bit 4 |
| Broche 68 | RH5 — Port H bit 5 |
| Broche 69 | RH6 — Port H bit 6 |
| Broche 70 | RH7 — Port H bit 7 |
| Broche 71 | RJ0 — Port J bit 0 |
| Broche 72 | RJ1 — Port J bit 1 |
| Broche 73 | RJ2 — Port J bit 2 |
| Broche 74 | RJ3 — Port J bit 3 |
| Broche 75 | RJ4 — Port J bit 4 |
| Broche 76 | RJ5 — Port J bit 5 |
| Broche 77 | RJ6 — Port J bit 6 |
| Broche 78 | RJ7 — Port J bit 7 |
| Broche 79 | VDD — Positive supply voltage (4.2V to 5.5V) |
| Broche 80 | VSS — Ground reference |
Applications typiques
PIC18F8620-E/PT convient pour 7 applications: Industrial Automation Controller, HVAC and Building Control System, Automotive Body Electronics, Security and Alarm Panel Controller, Consumer Appliance Control Board, Point-of-Sale Terminal and Kiosk Controller, USB HID / Human Interface Device.
Industrial Automation Controller
The PIC18F8620-E/PT fits industrial PLC and machine controller applications due to its 16-channel 10-bit ADC for sensor acquisition, 5 CCP/PWM modules for motor and actuator control, 2 MSSP ports for SPI/I2C sensor networks, and 68 I/O pins for switch and relay interfacing. Its -40C to +125C extended temperature range supports harsh factory-floor environments. The 64 KB flash and 3840 bytes RAM allow Modbus RTU or CANopen-style stack integration, while self-programming enables field firmware updates. Compared to discrete logic controllers, this single-chip solution reduces BOM and PCB area in motor control and process automation systems.
Recommandé
HVAC and Building Control System
The PIC18F8620-E/PT is well suited for HVAC control panels, thermostats, and building automation controllers that must aggregate inputs from temperature, airflow, and occupancy sensors. Its 16 ADC channels handle multiple analog sensor inputs simultaneously, while the 5 PWM channels drive fan speed, damper motors, and valve actuators. The 80-pin TQFP package supports displays, keypads, and communication interfaces (MSSP for SPI displays, UART for Modbus). Extended -40C to +125C temperature grade permits rooftop and plant-room deployment. Self-programming flash allows remote firmware updates for energy management algorithm improvements over the equipment lifecycle.
Recommandé
Automotive Body Electronics
The PIC18F8620-E/PT with extended -40C to +125C temperature grade targets automotive body control modules, instrument clusters, and central body computers. Its 68 I/O pins drive window lifters, mirror adjusters, lighting relays, and door lock actuators via PWM control. The 16-channel ADC reads multiple analog sensors (battery voltage, temperature, fluid levels), and the 2 MSSP ports connect to SPI-controlled LED drivers or I2C ambient light sensors. For full AEC-Q100 automotive qualification, designers should verify status with Microchip's automotive selector, but the 'E' temp grade is widely used in non-safety body electronics.
Recommandé
Security and Alarm Panel Controller
The PIC18F8620-E/PT serves as the main controller in commercial security and fire alarm panels, where it monitors dozens of sensor loops via its 16 ADC channels and 68 I/O pins. The EEPROM (1024 bytes) stores user codes, zone configurations, and event logs with non-volatile retention. Two MSSP ports connect to peripheral keypads, RFID readers, and GSM/Ethernet modules via SPI or I2C. Self-programming allows remote firmware upgrades for new sensor protocols and cybersecurity patches. Extended temperature operation supports unheated warehouses and outdoor equipment enclosures.
Recommandé
Consumer Appliance Control Board
The PIC18F8620-E/PT integrates washing machine, dishwasher, and oven controller functionality with its combination of 16 ADC channels (for temperature, water level, motor current sensing), 5 PWM outputs (for motor drive, valve control, buzzer), and 2 serial ports (for display panel and wireless module). The 64 KB flash holds sophisticated wash-cycle algorithms, error diagnostic logic, and user interface state machines. Its TQFP-80 package fits compact appliance control boards, and the extended temperature grade supports under-counter and garage installations where ambient temperatures vary widely.
Recommandé
Point-of-Sale Terminal and Kiosk Controller
The PIC18F8620-E/PT serves as the main processor in POS terminals, vending machines, and self-service kiosks where reliability and code maturity are critical. Its 64 KB flash stores payment flow state machines, and the 3840-byte RAM handles transaction buffers. Two MSSP ports connect to NFC readers and SPI displays, while the 5 PWM channels drive receipt printer stepper motors and audio feedback. Extended temperature range supports outdoor kiosks and refrigerated vending. Self-programming enables secure firmware updates for new payment standards and regulatory compliance.
Recommandé
USB HID / Human Interface Device
The PIC18F8620-E/PT implements USB Human Interface Devices such as custom keyboards, industrial input panels, and barcode scanners by interfacing an external USB transceiver to the MSSP ports and using software USB on general I/O. The 64 KB flash and 3840-byte RAM comfortably hold USB HID class drivers, HID report descriptors, and user firmware. The 68 I/O pins support matrix-scanned keypads up to 8x8 plus indicator LEDs. Extended temperature grade and self-programming support field firmware updates for new HID usage pages without hardware recall.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18F8620-E/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18F8720-E/PT | PIC18F8520-I/PT | PIC18F8585-E/PT | PIC18F85K22-E/PT | PIC18F85K90-E/PT |
|---|---|---|---|---|---|---|
| Package | 80-pin TQFP (12x12 mm) | 80-pin TQFP - same | 80-pin TQFP - same | 80-pin TQFP - same | 80-pin TQFP - same | 80-pin TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 64 KB (32K x 16) | 128 KB | 32 KB | 48 KB | 32 KB | 32 KB |
| RAM | 3840 bytes | 3936 bytes | 2304 bytes | 3328 bytes | 2048 bytes | 2048 bytes |
| EEPROM | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes |
| Max CPU Speed | 25 MHz (10 MIPS) | 25 MHz | 40 MHz | 40 MHz | 64 MHz | 64 MHz |
| Operating 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 | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| I/O Pins | 68 | 68 | 68 | 68 | 68 | 68 |
| ADC Channels | 16 x 10-bit | 16 x 10-bit | 16 x 10-bit | 12 x 12-bit | 24 x 10-bit | 24 x 12-bit |
| Operating Temperature | -40C to +125C (E grade) | -40C to +125C | -40C to +85C (I grade) | -40C to +125C | -40C to +125C | -40C to +125C |
Principaux différenciateurs
- Most flash memory in 80-TQFP PIC18F85xx family tier (vs PIC18F8520-I/PT)
- Wider operating voltage and proven design maturity (vs PIC18F85K22-E/PT)
- Higher CPU throughput vs older legacy 25 MHz F-series (vs PIC18F8585-E/PT)
Notes de conception
The PIC18F8620-E/PT requires a single 5V supply on VDD (4.2V to 5.5V range) and separate AVDD/AVSS for the ADC reference. Place 100 nF decoupling capacitors on each VDD/VSS pair as close to the pins as possible, plus a bulk 10 uF tantalum near the device. A ferrite bead plus 10 ohm resistor between VDD and AVDD reduces digital switching noise coupling into the ADC. An external low-dropout regulator (e.g., MCP1700) is recommended if the supply rail is shared with motors or relays.
Layout the 80-TQFP package with a continuous ground plane on the top or bottom layer directly under the device to provide thermal dissipation and a low-impedance return path. Keep analog and digital signal traces separated where possible, and route the analog inputs (AN0-AN15) away from switching signals such as PWM outputs. The TQFP exposed pad is not present on this package; thermal performance relies on copper pour connected to VSS pins. Recommended footprint is per Microchip package specification TB-008.
Two critical pitfalls to avoid: (1) Forgetting the MCLR pull-up resistor (typically 10 kohm to VDD) - if left floating, the device can randomly reset or fail to start. (2) Configuring the PGC/PGD pins (RB6/RB7) as outputs in firmware before disabling ICD - this prevents in-circuit debugging and may require high-voltage programming to recover. Additionally, the ADC's acquisition time must be set correctly per the source impedance of the analog input; failing to do so causes significant ADC conversion errors.
When using the external memory bus (RE0/RE1/RE2 as RD/WR/CS plus the parallel slave port on PORTD), add 33 ohm series damping resistors near the microcontroller to limit overshoot and ringing on the bus. Match trace lengths for the address and data bus within 1 cm to avoid setup/hold violations at high bus speeds. If the external memory is not used, leave RE0-RE2 as standard digital I/O by clearing the EBDIS fuse.
Informations de conformité
RoHS compliant per Microchip product page. 'E' temperature suffix indicates extended -40C to +125C operation. AEC-Q100 automotive qualification status is NOT explicitly stated for this part - confirm with Microchip automotive selector for safety-critical designs.