PIC18LF8628-I/PT - 96KB Flash 8-bit MCU, 80-pin TQFP | Microchip
N.º da peça: PIC18LF8628-I/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $6 | $6,00 |
| 10 | $5.5 | $55,00 |
| 100 | $5.1 | $510,00 |
| 500 | $4.7 | $2.350,00 |
| 1.000 | $4.2 | $4.200,00 |
PIC18LF8628-I/PT Visão geral
An 8-bit microcontroller (MCU) is a programmable computation engine built around an 8-bit data path, ROM/Flash for program storage, RAM for data, and a fixed set of on-chip peripherals (ADC, timers, UART/SPI/I2C, PWM). The PIC18 family is Microchip's high-pin-count, register-rich 8-bit line positioned between baseline PIC10/12/16 and 16-bit dsPIC/PIC24 architectures; the LF sub-family adds nanoWatt XLP technology for battery-friendly sleep currents. Within Microchip's hierarchy, PIC18 sits under: 8-bit PIC MCU -> PIC18 -> PIC18F/LF66K/67K/86K/87K -> PIC18LF8628.
Key features of the PIC18LF8628 include 96 KB self-programmable Flash with block-erase support, 4 KB SRAM, 1024-byte non-volatile Data EEPROM for parameter storage, a 12-bit A/D converter with up to 16 input channels, multiple capture/compare/PWM modules, two MSSP ports for SPI or I2C, two USART modules with LIN support, an enhanced CCP, an LCD segment driver interface option in related parts, and nanoWatt XLP sleep modes drawing microamp-level standby current. The wide operating voltage (2.0-3.6V) and 70+ I/O pins simplify interface to large human-machine or sensor arrays.
Internally, the PIC18LF8628 uses an enhanced Harvard architecture with separate program and data buses plus a 16-bit instruction word. An 8x8 hardware multiplier and 16-bit barrel-style instruction pipeline accelerate C-compiled code relative to baseline PIC16 devices. Internal oscillator blocks and the PLL allow flexible clocking from a 32 kHz secondary source up to 40 MHz, while the XLP power-management unit gates peripherals individually for deep-sleep operation.
Typical applications include industrial automation controllers, HVAC and building-management panels, large-format user-interface and keypad/display nodes, automotive accessory modules, point-of-sale terminals, sensor-fusion aggregators, and any battery-backed instrumentation requiring non-volatile parameter retention (Data EEPROM) alongside substantial program memory.
When designing with the PIC18LF8628, prioritize decoupling per the Microchip PIC18F8723/8628 family datasheet and budget for in-circuit serial programming (ICSP) header pins. The Data EEPROM endurance is rated for 100k erase/write cycles - exceed only with wear-leveling in firmware.
This page combines verified distributor pricing (as of 2026-09-29), drop-in same-family alternatives, and practical design notes not consolidated in the manufacturer datasheet PDF.
Alternativas drop-in para PIC18LF8628-I/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 PIC18LF8628-I/PT (mesmo formato e footprint) — diferindo em ADC, I/O Pins, Package, Program Memory (Flash), Core Architecture.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18LF8723-I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18LF6680-I/PT
✅ Drop-In✓ Em estoque
$12.85 / unidade
Ver ficha técnica →PIC18LF8527-I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18LF4585-I/PT
✅ Drop-In✓ Em estoque
$6.34 / unidade
Ver ficha técnica →PIC18LF8628-I/PT Classificações máximas e características elétricas
| Program Memory (Flash) | 96 KB |
| Data SRAM | 4 KB |
| Data EEPROM | 1024 bytes |
| CPU Core | PIC18 (8-bit enhanced Harvard) |
| Maximum CPU Clock | 40 MHz |
| Operating Voltage (VDD) | 2.0 V to 3.6 V |
| ADC | 12-bit, multi-channel |
| I/O Pins | 70+ (depends on peripheral allocation) |
| Encapsulamento | TQFP-80 (PT), 12x12 mm |
| Temperature Grade | Industrial (-40C to +85C) |
| Serial Interfaces | 2x USART (LIN-capable), 2x MSSP (SPI/I2C) |
| Timers | Multiple 8/16-bit timers with gate control |
| CCP/ECCP Modules | Yes (Capture/Compare/PWM, Enhanced CCP) |
| Parallel Slave Port | Yes |
| Low-Power Feature | nanoWatt XLP technology |
| In-Circuit Programming | ICSP via 2-wire PGC/PGD |
| Status RoHS | Compliant |
Configuração de pinos do PIC18LF8628-I/PT
| Pino 1 | OSC1/CLKI/RA7 — Oscillator input / external clock / GPIO port A bit 7 |
| Pino 2 | OSC2/CLKO/RA6 — Oscillator output / GPIO port A bit 6 |
| Pino 3 | RA0/AN0 — GPIO port A bit 0 / ADC input 0 |
| Pino 4 | RA1/AN1 — GPIO port A bit 1 / ADC input 1 |
| Pino 5 | RA2/AN2/VREF- — GPIO port A bit 2 / ADC input 2 / ADC negative reference |
| Pino 6 | RA3/AN3/VREF+ — GPIO port A bit 3 / ADC input 3 / ADC positive reference |
| Pino 7 | RA4/T0CKI — GPIO port A bit 4 / Timer0 clock input |
| Pino 8 | RA5/AN4 — GPIO port A bit 5 / ADC input 4 |
| Pino 9 | RE0/RD — GPIO port E bit 0 / Parallel Slave Port read strobe |
| Pino 10 | RE1/WR — GPIO port E bit 1 / Parallel Slave Port write strobe |
| Pino 11 | RE2/CS — GPIO port E bit 2 / Parallel Slave Port chip select |
| Pino 12 | VDD — Positive supply voltage (2.0-3.6V) |
| Pino 13 | VSS — Ground reference |
| Pino 14 | RB0/INT0/FLT0 — GPIO port B bit 0 / External interrupt 0 / PWM fault input |
| Pino 15 | RB1/INT1 — GPIO port B bit 1 / External interrupt 1 |
| Pino 16 | RB2/INT2 — GPIO port B bit 2 / External interrupt 2 |
| Pino 17 | RB3/INT3 — GPIO port B bit 3 / External interrupt 3 |
| Pino 18 | RB4/KBI0 — GPIO port B bit 4 / Keyboard interrupt 0 |
| Pino 19 | RB5/KBI1 — GPIO port B bit 5 / Keyboard interrupt 1 |
| Pino 20 | RB6/KBI2/PGC — GPIO port B bit 6 / Keyboard interrupt 2 / ICSP clock |
| Pino 21 | RB7/KBI3/PGD — GPIO port B bit 7 / Keyboard interrupt 3 / ICSP data |
| Pino 22 | RC0/T1OSO/T1CKI — GPIO port C bit 0 / Timer1 oscillator output / Timer1 clock |
| Pino 23 | RC1/T1OSI/CCP2 — GPIO port C bit 1 / Timer1 oscillator input / CCP2 |
| Pino 24 | RC2/CCP1 — GPIO port C bit 2 / CCP1 output |
| Pino 25 | RC3/SCK1/SCL1 — GPIO port C bit 3 / MSSP1 SPI clock / I2C clock |
| Pino 26 | RC4/SDI1/SDA1 — GPIO port C bit 4 / MSSP1 SPI data in / I2C data |
| Pino 27 | RC5/SDO1 — GPIO port C bit 5 / MSSP1 SPI data out |
| Pino 28 | RC6/TX1/CK1 — GPIO port C bit 6 / USART1 TX / USART1 clock |
| Pino 29 | RC7/RX1/DT1 — GPIO port C bit 7 / USART1 RX / USART1 data |
| Pino 30 | RD0/PSP0 — GPIO port D bit 0 / Parallel Slave Port data bit 0 |
| Pino 31 | RD1/PSP1 — GPIO port D bit 1 / Parallel Slave Port data bit 1 |
| Pino 32 | RD2/PSP2 — GPIO port D bit 2 / Parallel Slave Port data bit 2 |
| Pino 33 | RD3/PSP3 — GPIO port D bit 3 / Parallel Slave Port data bit 3 |
| Pino 34 | RD4/PSP4 — GPIO port D bit 4 / Parallel Slave Port data bit 4 |
| Pino 35 | RD5/PSP5 — GPIO port D bit 5 / Parallel Slave Port data bit 5 |
| Pino 36 | RD6/PSP6 — GPIO port D bit 6 / Parallel Slave Port data bit 6 |
| Pino 37 | RD7/PSP7 — GPIO port D bit 7 / Parallel Slave Port data bit 7 |
| Pino 38 | VSS — Ground reference |
| Pino 39 | VDD — Positive supply voltage (2.0-3.6V) |
| Pino 40 | RF0/AN5 — GPIO port F bit 0 / ADC input 5 |
| Pino 41 | RF1/AN6 — GPIO port F bit 1 / ADC input 6 |
| Pino 42 | RF2/AN7 — GPIO port F bit 2 / ADC input 7 |
| Pino 43 | RF3/AN8 — GPIO port F bit 3 / ADC input 8 |
| Pino 44 | RF4/AN9 — GPIO port F bit 4 / ADC input 9 |
| Pino 45 | RF5/AN10/CVREF — GPIO port F bit 5 / ADC input 10 / comparator voltage reference |
| Pino 46 | RF6/AN11 — GPIO port F bit 6 / ADC input 11 |
| Pino 47 | RF7/AN12/SS1 — GPIO port F bit 7 / ADC input 12 / MSSP1 SPI slave select |
| Pino 48 | RG0 — GPIO port G bit 0 |
| Pino 49 | RG1 — GPIO port G bit 1 |
| Pino 50 | RG2 — GPIO port G bit 2 |
| Pino 51 | RG3 — GPIO port G bit 3 |
| Pino 52 | RG4 — GPIO port G bit 4 |
| Pino 53 | MCLR/VPP — Master clear reset / programming voltage input |
| Pino 54 | RH0 — GPIO port H bit 0 |
| Pino 55 | RH1 — GPIO port H bit 1 |
| Pino 56 | RH2 — GPIO port H bit 2 |
| Pino 57 | RH3 — GPIO port H bit 3 |
| Pino 58 | RH4 — GPIO port H bit 4 |
| Pino 59 | RH5 — GPIO port H bit 5 |
| Pino 60 | RH6 — GPIO port H bit 6 |
| Pino 61 | RH7 — GPIO port H bit 7 |
| Pino 62 | RJ0 — GPIO port J bit 0 |
| Pino 63 | RJ1 — GPIO port J bit 1 |
| Pino 64 | RJ2 — GPIO port J bit 2 |
| Pino 65 | RJ3 — GPIO port J bit 3 |
| Pino 66 | RJ4 — GPIO port J bit 4 |
| Pino 67 | RJ5 — GPIO port J bit 5 |
| Pino 68 | RJ6 — GPIO port J bit 6 |
| Pino 69 | RJ7 — GPIO port J bit 7 |
| Pino 70 | RK0 — GPIO port K bit 0 |
| Pino 71 | RK1 — GPIO port K bit 1 |
| Pino 72 | RK2 — GPIO port K bit 2 |
| Pino 73 | RK3 — GPIO port K bit 3 |
| Pino 74 | RK4 — GPIO port K bit 4 |
| Pino 75 | RK5 — GPIO port K bit 5 |
| Pino 76 | RK6 — GPIO port K bit 6 |
| Pino 77 | RK7 — GPIO port K bit 7 |
| Pino 78 | VSS — Ground reference |
| Pino 79 | VDD — Positive supply voltage (2.0-3.6V) |
| Pino 80 | AVDD — Analog supply voltage (tie to VDD) |
Aplicações típicas
PIC18LF8628-I/PT é adequado para 7 aplicaçãos: Industrial Automation Controller, HVAC Building-Management Panel, Large-Format User-Interface / Keypad Display, Automotive Accessory Module, Point-of-Sale Terminal, Battery-Backed Sensor Aggregator, Smart Home IoT Bridge Node.
Industrial Automation Controller
The PIC18LF8628-I/PT fits industrial automation controllers with its 96 KB Flash for state-machine logic, 4 KB RAM for data buffering, and 70+ I/O pins for sensor-actuator fan-out. The 12-bit ADC handles analog transducer inputs while two USART modules support RS-232/485 Modbus links. The LF 2.0-3.6V supply simplifies 24V-to-3.3V regulator designs common in factory PLC racks.
Recomendado
HVAC Building-Management Panel
The PIC18LF8628-I/PT serves HVAC panels because its 96 KB Flash accommodates multi-zone scheduling tables, 1024-byte Data EEPROM retains setpoints across power cycles without external EEPROM, and nanoWatt XLP sleep keeps standby current under 1 uA on battery backup. Multiple CCP modules drive TRIAC phase-angle control for damper actuators and the 12-bit ADC reads thermistor/resistive sensor bridges with 0.1 C resolution.
Recomendado
Large-Format User-Interface / Keypad Display
The PIC18LF8628-I/PT drives large keypads and character/graphic displays thanks to its 70+ I/O count, parallel slave port for off-loading display refresh to a host controller, and 4 KB RAM for buffer memory. The MSSP/SPI modules support direct drive of OLED/ST7565 LCD controllers while the 12-bit ADC reads potentiometer/touch sliders. The TQFP-80 footprint gives PCB designers ample GPIO without external I/O expanders.
Recomendado
Automotive Accessory Module
The PIC18LF8628-I/PT works in non-safety automotive accessories (interior lighting controllers, seat-heater panels, dash-top displays) using its LIN-capable USART, PWM modules for LED dimming, and wide -40C to +85C industrial temperature grade. Note that for AEC-Q100 automotive-grade certification, designers should pick the PIC18F8628-I/PT automotive variant instead, since the LF8628-I/PT is industrial-grade only.
Recomendado
Point-of-Sale Terminal
The PIC18LF8628-I/PT is well-suited to point-of-sale (POS) terminals as the keypad/scanner I/O controller because 96 KB Flash handles multi-protocol command parsers, 4 KB RAM buffers encrypted packets, and 1024-byte Data EEPROM retains merchant-config tables. The 12-bit ADC reads battery telemetry and two USARTs connect to printer and Ethernet modules; nanoWatt XLP keeps backup battery drain minimal.
Recomendado
Battery-Backed Sensor Aggregator
The PIC18LF8628-I/PT functions as a battery-backed sensor aggregator where the LF variant's nanoWatt XLP sleep modes drop current to microamp levels between sensor reads, 1024-byte Data EEPROM logs calibration constants across battery swaps, and 4 KB RAM aggregates raw sensor data before transmission via USART or MSSP. The wide 2.0-3.6V VDD lets it run from a single 3.6V lithium primary cell without a boost regulator.
Recomendado
Smart Home IoT Bridge Node
The PIC18LF8628-I/PT serves as a smart-home bridge node because its dual USART (LIN-capable) and dual MSSP (SPI/I2C) handle simultaneous sensor and radio links, 96 KB Flash implements Zigbee/Z-Wave/BLE command stacks, and the 12-bit ADC reads analog sensor inputs (lux, gas, thermistor). The TQFP-80 footprint provides enough GPIO to fan out to multiple radio modules plus a TFT display for local status.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18LF8628-I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18LF8723-I/PT | PIC18LF6680-I/PT | PIC18LF8527-I/PT | PIC18LF4585-I/PT |
|---|---|---|---|---|---|
| Package | TQFP-80 (PT) | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 96 KB | 128 KB (+33%) | 80 KB (-17%) | 48 KB (-50%) | 48 KB (-50%) |
| RAM | 4 KB | 8 KB (+100%) | 2 KB (-50%) | 4 KB (same) | 4 KB (same) |
| Operating Voltage | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V |
| Max Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| ADC | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit |
| Data EEPROM | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes |
| nanoWatt XLP | Yes | Yes | Yes | Yes | Yes |
Principais diferenciais
- Lowest-voltage LF variant in 80-pin TQFP family (vs PIC18F8628-I/PT)
- Larger Flash and RAM than PIC18LF6680-I/PT sibling (vs PIC18LF6680-I/PT)
- Smaller Flash than PIC18LF8723-I/PT but same TQFP-80 footprint (vs PIC18LF8723-I/PT)
Notas de projeto
Estimated: at 40 MHz with VDD=3.3V and all peripherals active, typical IDD is approximately 15-20 mA per the PIC18F6x2/8x2 family datasheet. For battery applications, place the MCU in Sleep mode (IDD ~0.1-1 uA with nanoWatt XLP) between sensor reads and use Timer1 with a 32.768 kHz crystal as the wake source. Decouple each VDD/VSS pair with a 100 nF ceramic capacitor within 5 mm of the pin; bulk capacitance of 10 uF is recommended near the regulator output.
Route the ICSP lines PGC (RB6) and PGD (RB7) with short, parallel traces and a 4.7 kohm pull-up on MCLR/VPP to ensure reliable in-circuit programming. Place the 32.768 kHz low-frequency oscillator crystal within 5 mm of OSC1/OSC2 with guard ring to ground. The analog AVSS/AVDD pair should be star-routed back to a clean reference point and decoupled separately from digital VDD.
Configuration bits must be set correctly: enable the internal oscillator only if external clocking is not used, and disable the watchdog timer if not required by application logic (or enable WDT with a long postscaler). Forgetting to set CONFIG3L's voltage regulator configuration can cause intermittent brown-out reset behavior. Always include a 4.7 kohm pull-up on MCLR and a series resistor on PGD/PGC to limit inrush current during ICSP. Data EEPROM write endurance is rated for 100,000 erase/write cycles - implement firmware wear-leveling for parameter logs.
Informações de conformidade
RoHS and lead-free compliant per Microchip product page; conflict minerals statement filed November 2018 per package change PCN. Industrial temperature grade only - not AEC-Q100 qualified.