PIC18F8628-E/PT - 96KB Flash 8-bit MCU | Microchip 80-TQFP
N.º da peça: PIC18F8628-E/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $11.2 | $11,20 |
| 10 | $10.58 | $105,80 |
| 100 | $9.42 | $942,00 |
| 500 | $8.55 | $4.275,00 |
| 1.000 | $7.89 | $7.890,00 |
PIC18F8628-E/PT Visão geral
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, a Harvard architecture with separate program and data buses, and on-chip memory plus peripherals. MCUs sit at the base of the embedded computing hierarchy: MCU -> microcontroller -> embedded processor -> semiconductor. The PIC18F family is positioned for high-pin-count, mixed-signal embedded control and competes with the STMicroelectronics STM8 and the larger-pin Atmel AVR families.
Key features include 96 KB self-programmable Flash, 1 KB EEPROM emulation through Flash, 10-bit ADC up to 12 channels, two capture/compare/PWM modules, two comparators, and a 32 kHz secondary oscillator for real-time-clock operation. The extended (-E) temperature grade spans -40C to +125C.
The device is built on Microchip's enhanced Harvard architecture with a 16-bit instruction word, 8-bit data path, hardware multiply, and a priority interrupt controller supporting vectored interrupts, providing deterministic real-time response while keeping C-language compilation efficient. The wide I/O count and dual serial ports suit complex user interfaces and connectivity bridges.
Typical applications include industrial control panels, building automation gateways, automotive body and HVAC controllers, point-of-sale terminals, and graphical LCD human-machine interfaces (HMI). The large RAM buffer is well suited to USB stacks and protocol bridging when paired with a USB transceiver.
When designing with this part, validate that your PCB thermal envelope stays within the extended temperature grade if the application sits near heat sources, and place a 0.1 uF decoupling capacitor within 5 mm of every VDD/VSS pair. For new designs consider the newer PIC18F67K22 family for lower power.
This page synthesizes distributor pricing, drop-in PIC18F alternatives in the same 80-TQFP footprint, and practical design notes not found in the manufacturer datasheet.
Alternativas drop-in para PIC18F8628-E/PT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC18F8628-E/PT (mesmo formato e footprint) — diferindo em Package, Operating Temperature, ADC, Core, Timers.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18F8627-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$9.05 / unidade
Ver ficha técnica →PIC18F8622-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$5.4 / unidade
Ver ficha técnica →PIC18F8722-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$6.5 / unidade
Ver ficha técnica →PIC18F8620-E/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$6.55 / unidade
Ver ficha técnica →PIC18F8585-E/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$9.55 / unidade
Ver ficha técnica →PIC18F67K22-I/PT
✅ Drop-In✓ Em estoque
$4.6 / unidade
Ver ficha técnica →PIC18F8628-E/PT Classificações máximas e características elétricas
| Core | PIC18F (8-bit Harvard) |
| Instruction Set | 16-bit instructions, 8-bit data |
| Program Memory (Flash) | 96 KB (48K x 16) |
| RAM | 4 KB |
| Data EEPROM | 1 KB |
| Maximum CPU Speed | 40 MHz (10 MIPS) |
| Operating Voltage (VDD) | 4.2 V to 5.5 V |
| I/O Pins | 70 |
| ADC | 10-bit, 12 channels |
| Comparators | 2 |
| CCP/PWM Modules | 2 |
| EUSART | 2 (LIN-capable) |
| MSSP (I2C/SPI) | 2 |
| Encapsulamento | 80-TQFP (12 x 12 mm, 1 mm height) |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40C to +125C (Extended) |
| Temperature Grade | Extended (-E) |
| Nível MSL | 3 |
| Status RoHS | Compliant |
| Lead-Free | Yes |
Configuração de pinos do PIC18F8628-E/PT
| Pino 1 | RC0/T1OSO/T1CKI — I/O port C0 / Timer1 oscillator output / Timer1 clock input |
| Pino 2 | RC1/T1OSI/CCP2 — I/O port C1 / Timer1 oscillator input / Capture-Compare-PWM 2 |
| Pino 3 | RC2/CCP1 — I/O port C2 / Capture-Compare-PWM 1 |
| Pino 4 | RC3/SCK1/SCL1 — I/O port C3 / SPI1 clock / I2C1 clock |
| Pino 5 | RC4/SDI1/SDA1 — I/O port C4 / SPI1 data in / I2C1 data |
| Pino 6 | RC5/SDO1 — I/O port C5 / SPI1 data out |
| Pino 7 | RC6/TX1/CK1 — I/O port C6 / EUSART1 transmit / clock |
| Pino 8 | RC7/RX1/DT1 — I/O port C7 / EUSART1 receive / data |
| Pino 9 | RC8/SDO2 — I/O port C8 / SPI2 data out |
| Pino 10 | RC9/SDI2/SDA2 — I/O port C9 / SPI2 data in / I2C2 data |
| Pino 11 | VSS — Ground reference |
| Pino 12 | VDD — Positive supply voltage (4.2-5.5 V) |
| Pino 13 | RA0/AN0 — I/O port A0 / analog input 0 |
| Pino 14 | RA1/AN1 — I/O port A1 / analog input 1 |
| Pino 15 | RA2/AN2/VREF- — I/O port A2 / analog input 2 / ADC VREF- |
| Pino 16 | RA3/AN3/VREF+ — I/O port A3 / analog input 3 / ADC VREF+ |
| Pino 17 | RA4/T0CKI — I/O port A4 / Timer0 clock input |
| Pino 18 | RA5/AN4/SS1 — I/O port A5 / analog input 4 / SPI1 slave select |
| Pino 19 | RA6/OSC2/CLKO — I/O port A6 / crystal oscillator output / clock out |
| Pino 20 | RA7/OSC1/CLKI — I/O port A7 / crystal oscillator input / clock in |
| Pino 21 | VSS — Ground reference |
| Pino 22 | VDD — Positive supply voltage (4.2-5.5 V) |
| Pino 23 | RB0/INT0 — I/O port B0 / external interrupt 0 |
| Pino 24 | RB1/INT1 — I/O port B1 / external interrupt 1 |
| Pino 25 | RB2/INT2 — I/O port B2 / external interrupt 2 |
| Pino 26 | RB3/INT3/CCP2 — I/O port B3 / external interrupt 3 / CCP2 |
| Pino 27 | RB4/KBI0 — I/O port B4 / keyboard interrupt 0 |
| Pino 28 | RB5/KBI1 — I/O port B5 / keyboard interrupt 1 |
| Pino 29 | RB6/KBI2/PGC — I/O port B6 / keyboard interrupt 2 / ICSP clock |
| Pino 30 | RB7/KBI3/PGD — I/O port B7 / keyboard interrupt 3 / ICSP data |
| Pino 31 | VSS — Ground reference |
| Pino 32 | VDD — Positive supply voltage (4.2-5.5 V) |
| Pino 33 | RD0/PSP0 — I/O port D0 / parallel slave port data 0 |
| Pino 34 | RD1/PSP1 — I/O port D1 / parallel slave port data 1 |
| Pino 35 | RD2/PSP2 — I/O port D2 / parallel slave port data 2 |
| Pino 36 | RD3/PSP3 — I/O port D3 / parallel slave port data 3 |
| Pino 37 | RD4/PSP4 — I/O port D4 / parallel slave port data 4 |
| Pino 38 | RD5/PSP5 — I/O port D5 / parallel slave port data 5 |
| Pino 39 | RD6/PSP6 — I/O port D6 / parallel slave port data 6 |
| Pino 40 | RD7/PSP7 — I/O port D7 / parallel slave port data 7 |
| Pino 41 | VSS — Ground reference |
| Pino 42 | VDD — Positive supply voltage (4.2-5.5 V) |
| Pino 43 | RE0/RD/AN5 — I/O port E0 / parallel port read / analog input 5 |
| Pino 44 | RE1/WR/AN6 — I/O port E1 / parallel port write / analog input 6 |
| Pino 45 | RE2/CS/AN7 — I/O port E2 / parallel port chip select / analog input 7 |
| Pino 46 | RE3 — I/O port E3 (input only on PORTE) |
| Pino 47 | RF0/AN8 — I/O port F0 / analog input 8 |
| Pino 48 | RF1/AN9/C2OUT — I/O port F1 / analog input 9 / comparator 2 output |
| Pino 49 | RF2/AN10/C1OUT — I/O port F2 / analog input 10 / comparator 1 output |
| Pino 50 | RF3/AN11 — I/O port F3 / analog input 11 |
| Pino 51 | RF4 — I/O port F4 |
| Pino 52 | RF5 — I/O port F5 |
| Pino 53 | RF6 — I/O port F6 |
| Pino 54 | RF7 — I/O port F7 |
| Pino 55 | VSS — Ground reference |
| Pino 56 | VDD — Positive supply voltage (4.2-5.5 V) |
| Pino 57 | RG0/ECCP3 — I/O port G0 / Enhanced CCP3 |
| Pino 58 | RG1/TX2/CK2 — I/O port G1 / EUSART2 transmit / clock |
| Pino 59 | RG2/RX2/DT2 — I/O port G2 / EUSART2 receive / data |
| Pino 60 | RG3/CCP4 — I/O port G3 / CCP4 |
| Pino 61 | RG4 — I/O port G4 |
| Pino 62 | RG5 — I/O port G5 |
| Pino 63 | RG6 — I/O port G6 |
| Pino 64 | RG7 — I/O port G7 |
| Pino 65 | VSS — Ground reference |
| Pino 66 | VDD — Positive supply voltage (4.2-5.5 V) |
| Pino 67 | RH0 — I/O port H0 |
| Pino 68 | RH1 — I/O port H1 |
| Pino 69 | RH2 — I/O port H2 |
| Pino 70 | RH3 — I/O port H3 |
| Pino 71 | RH4 — I/O port H4 |
| Pino 72 | RH5 — I/O port H5 |
| Pino 73 | RH6 — I/O port H6 |
| Pino 74 | RH7 — I/O port H7 |
| Pino 75 | VSS — Ground reference |
| Pino 76 | VDD — Positive supply voltage (4.2-5.5 V) |
| Pino 77 | RJ0 — I/O port J0 |
| Pino 78 | RJ1 — I/O port J1 |
| Pino 79 | RJ2 — I/O port J2 |
| Pino 80 | RJ3/MCLR — I/O port J3 / master clear (reset) input |
Aplicações típicas
PIC18F8628-E/PT é adequado para 7 aplicaçãos: Industrial Control Panels, Building Automation Gateways, Automotive Body and HVAC Controllers, Point-of-Sale Terminals, Graphical LCD HMI Displays, Energy Metering and Monitoring, Medical Monitoring Peripherals.
Industrial Control Panels
The PIC18F8628-E/PT suits industrial control panels that need a large number of discrete I/O, multiple serial buses, and an extended temperature grade. With 70 GPIO pins the device can directly drive 7-segment displays, keypad matrices, indicator LEDs, and relay drivers without external logic. The two EUSARTs handle RS-232/RS-485 to a host PLC, while the two MSSP peripherals run I2C sensors and SPI ADC chips concurrently. The 96 KB Flash accommodates large state-machine firmware and Modbus RTU stacks, while the 4 KB RAM buffers incoming telegrams without overflow at 115200 baud. Operating up to +125C, the part tolerates cabinet temperatures adjacent to motor drives and switching power stages.
Recomendado
Building Automation Gateways
For building automation gateways that bridge BACnet, KNX, Modbus, and proprietary sensor networks, the PIC18F8628-E/PT provides four serial ports plus abundant I/O. Two MSSP peripherals run I2C sensor backbones (temperature, humidity, CO2) while two LIN-capable EUSARTs link to HVAC actuator nodes. The 96 KB Flash hosts the gateway firmware and a small TLS or DTLS helper, while the 1 KB EEPROM stores configuration parameters that survive power cycles and field updates. The 4 KB RAM accommodates inbound Modbus frames plus concurrent sensor polling buffers. Extended -40 to +125C operation allows rooftop or boiler-room deployment without additional thermal protection.
Recomendado
Automotive Body and HVAC Controllers
The PIC18F8628-E/PT fits automotive body and HVAC modules where the -E temperature grade covers under-hood and cabin head-load profiles, and 70 I/O pins support multi-zone climate and lighting control. The two LIN-capable EUSARTs link to seat controllers and mirror modules using the LIN bus, while MSSP peripherals drive I2C temperature probes and SPI DAC chips for damper actuation. The 96 KB Flash supports AUTOSAR-compatible or proprietary HVAC control firmware plus diagnostics, and the 1 KB EEPROM stores user-set temperatures and fault counters. Note: for AEC-Q100 qualification, migrate to the PIC18F66K22-Q1 or PIC18F67K22-Q1 family in production.
Recomendado
Point-of-Sale Terminals
Point-of-sale (POS) terminals benefit from the PIC18F8628-E/PT's large Flash and RAM to run graphical LCD drivers, secure keypad scan, and protocol stacks. The 70 GPIO pins can directly scan 8x8 key matrices, drive a 320x240 graphical LCD, and control receipt-printer stepper motors via PWM CCP modules. Two EUSARTs link to magnetic-stripe readers and external contactless card bridges, while MSSP peripherals run SPI displays and I2C real-time clocks. The 4 KB RAM stores encrypted PIN-entry buffers and transaction state, and the 96 KB Flash holds the application plus a secure bootloader. -40 to +125C operation tolerates enclosed retail kiosk environments.
Recomendado
Graphical LCD HMI Displays
For graphical LCD human-machine interfaces (HMI), the PIC18F8628-E/PT drives monochrome or color TFT panels via SPI/parallel interfaces and provides the computational headroom for menu rendering and touch input processing. The 96 KB Flash holds font tables, multilingual strings, and screen assets, while the 4 KB RAM serves as the framebuffer for small 128x64 OLEDs or character LCDs. The two MSSP peripherals run SPI LCDs and I2C touch controllers in parallel, and the CCP modules generate backlight PWM and buzzer tones. The 12-channel ADC reads rotary encoders and analog buttons without external multiplexer ICs.
Recomendado
Energy Metering and Monitoring
Single-phase and three-phase energy meters leverage the PIC18F8628-E/PT's 12-channel 10-bit ADC, four serial ports, and 96 KB Flash for metrology firmware and communication stacks. The ADC samples voltage and current channels simultaneously for true-RMS and reactive-power calculations; the two EUSARTs handle DLMS/COSEM or Modbus to data concentrators, while MSSP peripherals drive I2C EEPROM calibration storage and SPI displays. The 1 KB EEPROM stores calibration coefficients and tamper logs that must persist through power outages. Extended -40 to +125C operation suits outdoor meter enclosures.
Recomendado
Medical Monitoring Peripherals
Non-patient-contact medical peripherals (lab analyzers, sample handlers, monitoring hubs) can leverage the PIC18F8628-E/PT's large Flash and RAM to run communication stacks and user-interface firmware. The 70 GPIO pins drive barcode readers, stepper motors, and indicator arrays, while the four serial ports link to analyzers, host PCs, and LIS gateways. The 96 KB Flash supports proprietary assay protocols plus USB-CDC firmware, and the 4 KB RAM buffers sample data before forwarding. Note: This part is NOT a Medical Device (IEC 60601) component and is for peripheral use only - select approved modules for patient-contact applications.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18F8628-E/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18F8627-I/PT | PIC18F8622-I/PT | PIC18F8722-I/PT | PIC18F8620-E/PT | PIC18F67K22-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-TQFP (12x12 mm) | 80-TQFP - same | 80-TQFP - same | 80-TQFP - same | 80-TQFP - same | 80-TQFP - same |
| Flash Memory | 96 KB | 96 KB - same | 64 KB (-33%) | 128 KB (+33%) | 64 KB (-33%) | 128 KB (+33%) |
| RAM | 4 KB | 4 KB - same | 4 KB - same | 4 KB - same | 4 KB - same | 4 KB - same |
| Data EEPROM | 1 KB | 1 KB - same | 1 KB - same | 1 KB - same | 1 KB - same | 1 KB - same |
| Maximum CPU Speed | 40 MHz / 10 MIPS | 40 MHz - same | 40 MHz - same | 40 MHz - same | 40 MHz - same | 64 MHz (16 MIPS) +60% |
| Operating Voltage | 4.2 V to 5.5 V | 4.2 V to 5.5 V - same | 4.2 V to 5.5 V - same | 4.2 V to 5.5 V - same | 4.2 V to 5.5 V - same | 1.8 V to 5.5 V (wider) |
| Temperature Grade | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| I/O Pins | 70 | 70 - same | 70 - same | 70 - same | 70 - same | 70 - same |
Principais diferenciais
- Extended temperature grade to +125C (vs PIC18F8627-I/PT)
- Larger program memory for full-featured firmware (vs PIC18F8620-E/PT)
- Faster ADC and lower power than legacy 862x family (vs PIC18F67K22-I/PT)
- Two LIN-capable EUSARTs and dual MSSP (vs PIC18F8722-I/PT)
Notas de projeto
PIC18F8628-E/PT operates from 4.2 V to 5.5 V. Place a 0.1 uF ceramic decoupling capacitor within 5 mm of every VDD/VSS pin pair (the 80-TQFP has 7 VDD/VSS pairs). Add a bulk 10 uF tantalum or aluminum-polymer capacitor at the supply entry to handle switching transients from connected loads. For sleep-mode designs, use the nanoWatt features (Timer1 32 kHz crystal, internal low-power RC) to drop current below 1 uA typical; verify with the datasheet DC characteristics table.
At maximum 40 MHz operation the device dissipates under 200 mW; no heatsink is required. However, the -E temperature grade reaches +125C junction, so for enclosed industrial cabinets near heat sources calculate theta_JA from the 80-TQFP land pattern and ensure the PCB copper pour keeps the junction below the rating. Provide at least 1 square inch of ground plane copper under the IC to spread heat.
Route the crystal traces (OSC1/OSC2 pins 19-20) short and guarded by a ground ring to avoid crosstalk from switching signals. Keep ADC traces (PORTA analog inputs) away from switching nodes and digital outputs to preserve 10-bit ADC accuracy. Place the MCLR pull-up (typically 10 kOhm) close to pin 80 to avoid spurious resets during in-circuit programming.
Do not assume a 3.3 V supply works - the 8628 family is 4.2-5.5 V only. For 3.3 V designs, migrate to the PIC18F66J series. Do not exceed 70 GPIO simultaneously; PORTE pins 4-7 are input-only. Do not skip the CONFIG bits configuration - leaving the watchdog disabled at startup can mask hardware faults in motor-control applications.
The MSSP peripheral shares pins with PORTC, so when using SPI or I2C, disable the unused EUSART on those pins. For EUSART1 TX/RX at high baud rates above 115200, add series termination if the trace length exceeds 50 mm to prevent ringing. The two comparators can be configured to trigger a CCP interrupt; if used, set the comparator output to a pin (C1OUT/C2OUT) only if no other interrupt latency budget is needed.
Informações de conformidade
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - migrate to PIC18F66K22-Q1 or PIC18F67K22-Q1 family for automotive designs. Halogen-free status not explicitly listed in the verified distributor data.
