PIC18LF8628-I/PT - 96KB Flash 8-bit MCU, 80-pin TQFP | Microchip
MPN: PIC18LF8628-I/PT ✓ فعالPIC18LF8628-I/PT نمای کلی
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.
جایگزین‌های drop-in برای PIC18LF8628-I/PT — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای PIC18LF8628-I/PT (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در ADC, I/O Pins, Package, Program Memory (Flash), Core Architecture.
PIC18LF8723-I/PT
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC18LF6680-I/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18LF8527-I/PT
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC18LF4585-I/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18LF8628-I/PT حداکثر مقادیر مجاز و مشخصات الکتریکی
| 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) |
| بسته‌بندی | 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 |
| وضعیت RoHS | Compliant |
پیکربندی پین PIC18LF8628-I/PT
| پین 1 | OSC1/CLKI/RA7 — Oscillator input / external clock / GPIO port A bit 7 |
| پین 2 | OSC2/CLKO/RA6 — Oscillator output / GPIO port A bit 6 |
| پین 3 | RA0/AN0 — GPIO port A bit 0 / ADC input 0 |
| پین 4 | RA1/AN1 — GPIO port A bit 1 / ADC input 1 |
| پین 5 | RA2/AN2/VREF- — GPIO port A bit 2 / ADC input 2 / ADC negative reference |
| پین 6 | RA3/AN3/VREF+ — GPIO port A bit 3 / ADC input 3 / ADC positive reference |
| پین 7 | RA4/T0CKI — GPIO port A bit 4 / Timer0 clock input |
| پین 8 | RA5/AN4 — GPIO port A bit 5 / ADC input 4 |
| پین 9 | RE0/RD — GPIO port E bit 0 / Parallel Slave Port read strobe |
| پین 10 | RE1/WR — GPIO port E bit 1 / Parallel Slave Port write strobe |
| پین 11 | RE2/CS — GPIO port E bit 2 / Parallel Slave Port chip select |
| پین 12 | VDD — Positive supply voltage (2.0-3.6V) |
| پین 13 | VSS — Ground reference |
| پین 14 | RB0/INT0/FLT0 — GPIO port B bit 0 / External interrupt 0 / PWM fault input |
| پین 15 | RB1/INT1 — GPIO port B bit 1 / External interrupt 1 |
| پین 16 | RB2/INT2 — GPIO port B bit 2 / External interrupt 2 |
| پین 17 | RB3/INT3 — GPIO port B bit 3 / External interrupt 3 |
| پین 18 | RB4/KBI0 — GPIO port B bit 4 / Keyboard interrupt 0 |
| پین 19 | RB5/KBI1 — GPIO port B bit 5 / Keyboard interrupt 1 |
| پین 20 | RB6/KBI2/PGC — GPIO port B bit 6 / Keyboard interrupt 2 / ICSP clock |
| پین 21 | RB7/KBI3/PGD — GPIO port B bit 7 / Keyboard interrupt 3 / ICSP data |
| پین 22 | RC0/T1OSO/T1CKI — GPIO port C bit 0 / Timer1 oscillator output / Timer1 clock |
| پین 23 | RC1/T1OSI/CCP2 — GPIO port C bit 1 / Timer1 oscillator input / CCP2 |
| پین 24 | RC2/CCP1 — GPIO port C bit 2 / CCP1 output |
| پین 25 | RC3/SCK1/SCL1 — GPIO port C bit 3 / MSSP1 SPI clock / I2C clock |
| پین 26 | RC4/SDI1/SDA1 — GPIO port C bit 4 / MSSP1 SPI data in / I2C data |
| پین 27 | RC5/SDO1 — GPIO port C bit 5 / MSSP1 SPI data out |
| پین 28 | RC6/TX1/CK1 — GPIO port C bit 6 / USART1 TX / USART1 clock |
| پین 29 | RC7/RX1/DT1 — GPIO port C bit 7 / USART1 RX / USART1 data |
| پین 30 | RD0/PSP0 — GPIO port D bit 0 / Parallel Slave Port data bit 0 |
| پین 31 | RD1/PSP1 — GPIO port D bit 1 / Parallel Slave Port data bit 1 |
| پین 32 | RD2/PSP2 — GPIO port D bit 2 / Parallel Slave Port data bit 2 |
| پین 33 | RD3/PSP3 — GPIO port D bit 3 / Parallel Slave Port data bit 3 |
| پین 34 | RD4/PSP4 — GPIO port D bit 4 / Parallel Slave Port data bit 4 |
| پین 35 | RD5/PSP5 — GPIO port D bit 5 / Parallel Slave Port data bit 5 |
| پین 36 | RD6/PSP6 — GPIO port D bit 6 / Parallel Slave Port data bit 6 |
| پین 37 | RD7/PSP7 — GPIO port D bit 7 / Parallel Slave Port data bit 7 |
| پین 38 | VSS — Ground reference |
| پین 39 | VDD — Positive supply voltage (2.0-3.6V) |
| پین 40 | RF0/AN5 — GPIO port F bit 0 / ADC input 5 |
| پین 41 | RF1/AN6 — GPIO port F bit 1 / ADC input 6 |
| پین 42 | RF2/AN7 — GPIO port F bit 2 / ADC input 7 |
| پین 43 | RF3/AN8 — GPIO port F bit 3 / ADC input 8 |
| پین 44 | RF4/AN9 — GPIO port F bit 4 / ADC input 9 |
| پین 45 | RF5/AN10/CVREF — GPIO port F bit 5 / ADC input 10 / comparator voltage reference |
| پین 46 | RF6/AN11 — GPIO port F bit 6 / ADC input 11 |
| پین 47 | RF7/AN12/SS1 — GPIO port F bit 7 / ADC input 12 / MSSP1 SPI slave select |
| پین 48 | RG0 — GPIO port G bit 0 |
| پین 49 | RG1 — GPIO port G bit 1 |
| پین 50 | RG2 — GPIO port G bit 2 |
| پین 51 | RG3 — GPIO port G bit 3 |
| پین 52 | RG4 — GPIO port G bit 4 |
| پین 53 | MCLR/VPP — Master clear reset / programming voltage input |
| پین 54 | RH0 — GPIO port H bit 0 |
| پین 55 | RH1 — GPIO port H bit 1 |
| پین 56 | RH2 — GPIO port H bit 2 |
| پین 57 | RH3 — GPIO port H bit 3 |
| پین 58 | RH4 — GPIO port H bit 4 |
| پین 59 | RH5 — GPIO port H bit 5 |
| پین 60 | RH6 — GPIO port H bit 6 |
| پین 61 | RH7 — GPIO port H bit 7 |
| پین 62 | RJ0 — GPIO port J bit 0 |
| پین 63 | RJ1 — GPIO port J bit 1 |
| پین 64 | RJ2 — GPIO port J bit 2 |
| پین 65 | RJ3 — GPIO port J bit 3 |
| پین 66 | RJ4 — GPIO port J bit 4 |
| پین 67 | RJ5 — GPIO port J bit 5 |
| پین 68 | RJ6 — GPIO port J bit 6 |
| پین 69 | RJ7 — GPIO port J bit 7 |
| پین 70 | RK0 — GPIO port K bit 0 |
| پین 71 | RK1 — GPIO port K bit 1 |
| پین 72 | RK2 — GPIO port K bit 2 |
| پین 73 | RK3 — GPIO port K bit 3 |
| پین 74 | RK4 — GPIO port K bit 4 |
| پین 75 | RK5 — GPIO port K bit 5 |
| پین 76 | RK6 — GPIO port K bit 6 |
| پین 77 | RK7 — GPIO port K bit 7 |
| پین 78 | VSS — Ground reference |
| پین 79 | VDD — Positive supply voltage (2.0-3.6V) |
| پین 80 | AVDD — Analog supply voltage (tie to VDD) |
کاربردهای معمول
PIC18LF8628-I/PT مناسب است برای 7 کاربردs: 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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC18LF8628-I/PT — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | 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 |
تفاوت‌های کلیدی
- Lowest-voltage LF variant in 80-pin TQFP family (در مقابلPIC18F8628-I/PT)
- Larger Flash and RAM than PIC18LF6680-I/PT sibling (در مقابلPIC18LF6680-I/PT)
- Smaller Flash than PIC18LF8723-I/PT but same TQFP-80 footprint (در مقابلPIC18LF8723-I/PT)
یادداشت‌های طراحی
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.
اطلاعات انطباق
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.