PIC18LF8628T-I/PT - 8-Bit PIC MCU 96KB Flash 40MHz TQFP-80 | Microchip
MPN: PIC18LF8628T-I/PT ✓ Hoạt độngPIC18LF8628T-I/PT Tóm tắt
An 8-bit microcontroller (MCU) is a programmable computing IC built around a fixed-width data path, on-chip Flash for code storage, and a peripheral set matched to embedded control tasks such as motor drives, user interfaces, and sensor aggregation. Within the broader taxonomy, an 8-bit MCU belongs to the microcontroller family, which itself falls under embedded processors, then integrated circuits, then semiconductors. PIC18F devices specifically use Microchip's enhanced Harvard architecture with 16-bit instructions and 8-bit data, giving higher code density than legacy 8051 cores.
Key features of the PIC18LF8628T-I/PT include a 40 MHz maximum CPU clock, 10 MIPS instruction throughput at 40 MHz, an enhanced 16-bit instruction set with hardware multiply, an internal oscillator block, an integrated 12-bit ADC with up to 16 channels, two analog comparators, a 10-bit PWM module, two USART modules, an MSSP (SPI/I2C) module, and 70 I/O pins. The 80-pin TQFP package provides ample I/O for parallel buses and segmented LCD driving.
The PIC18LF8628 silicon uses an enhanced Harvard architecture that separates program and data buses so the CPU can fetch an instruction and read a data operand in the same cycle. With 96 KB of self-programmable Flash, the LF8628 supports in-application reprogramming via bootloader, and the 1024-byte data EEPROM allows non-volatile storage of calibration data without external serial memory. Internal oscillator trimming and a wide analog front-end reduce bill-of-materials cost.
Typical applications include industrial automation controllers, HVAC control boards, automotive body and instrument clusters, point-of-sale terminals, building automation, and embedded graphical user interfaces that require large pin count and A/D-rich front ends. The wide operating temperature range (-40C to +85C industrial grade) supports outdoor and factory deployments.
When designing with the PIC18LF8628T-I/PT, place 100 nF decoupling capacitors adjacent to every VDD/VSS pair and add a 10 uF bulk capacitor near the regulator output. The 80-pin TQFP requires a 12 mm x 12 mm land pattern with 0.5 mm pitch traces routed on inner PCB layers for signal integrity. Reserve MCLR pin pull-up and ICSP programming pads if in-circuit debugging is needed.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, accelerating your component selection process.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF8628T-I/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC18LF8628T-I/PT (cùng hình factor và footprint) — khác nhau ở Package, I/O Pins, ADC, Core Architecture, Program Memory (Flash).
PIC18LF8722T-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF8628-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F8628T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF8680T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF8722-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF8585-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF8628T-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18F Enhanced Harvard, 8-bit data / 16-bit instruction |
| CPU Speed | 40 MHz maximum, 10 MIPS |
| Program Memory (Flash) | 96 KB (48K x 16 words) |
| Data SRAM | 4 KB |
| Data EEPROM | 1024 bytes |
| Operating Voltage Range | 2.0 V to 5.5 V (LF variant) |
| I/O Pins | 70 |
| ADC | 12-bit, up to 16 channels |
| Hộp | 80-pin TQFP (12 x 12 x 1 mm) |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Serial Interfaces | 2x USART, MSSP (SPI / I2C) |
| PWM Modules | 10-bit resolution, multiple channels |
| Timers | Multiple 8-bit and 16-bit timers |
| Comparators | 2 analog comparators |
| Kiểu lắp đặt | Surface Mount (Tape & Reel) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18LF8628T-I/PT
| Chân 1 | MCLR — Master Clear (reset) input, active low |
| Chân 2 | RA0 — Digital I/O / analog AN0 |
| Chân 3 | RA1 — Digital I/O / analog AN1 |
| Chân 4 | RA2 — Digital I/O / analog AN2 |
| Chân 5 | RA3 — Digital I/O / analog AN3 |
| Chân 6 | RA4 — Digital I/O / analog AN4 / T0CKI |
| Chân 7 | RA5 — Digital I/O / analog AN5 / SS |
| Chân 8 | RE0 — Digital I/O / analog AN6 / RD |
| Chân 9 | RE1 — Digital I/O / analog AN7 / WR |
| Chân 10 | RE2 — Digital I/O / analog AN8 / CS |
| Chân 11 | VDD — Positive supply (2.0 V to 5.5 V) |
| Chân 12 | VSS — Ground |
| Chân 13 | OSC1 — Crystal / external clock input |
| Chân 14 | OSC2 — Crystal / clock output |
| Chân 15 | RC0 — Digital I/O / T1OSO / T1CKI |
| Chân 16 | RC1 — Digital I/O / T1OSI / CCP2 |
| Chân 17 | RC2 — Digital I/O / CCP1 |
| Chân 18 | RC3 — Digital I/O / SCL / SCK |
| Chân 19 | RD0 — Digital I/O / PSP0 |
| Chân 20 | RD1 — Digital I/O / PSP1 |
| Chân 21 | RD2 — Digital I/O / PSP2 |
| Chân 22 | RD3 — Digital I/O / PSP3 |
| Chân 23 | RC4 — Digital I/O / SDA / SDI |
| Chân 24 | RC5 — Digital I/O / SDO |
| Chân 25 | RC6 — Digital I/O / TX / CK |
| Chân 26 | RC7 — Digital I/O / RX / DT |
| Chân 27 | RD4 — Digital I/O / PSP4 |
| Chân 28 | RD5 — Digital I/O / PSP5 / P1B |
| Chân 29 | RD6 — Digital I/O / PSP6 / P1C |
| Chân 30 | RD7 — Digital I/O / PSP7 / P1D |
| Chân 31 | VSS — Ground |
| Chân 32 | VDD — Positive supply |
| Chân 33 | RB0 — Digital I/O / INT0 / FLT0 |
| Chân 34 | RB1 — Digital I/O / INT1 |
| Chân 35 | RB2 — Digital I/O / INT2 |
| Chân 36 | RB3 — Digital I/O / INT3 / CCP2 |
| Chân 37 | RB4 — Digital I/O / KBI0 |
| Chân 38 | RB5 — Digital I/O / KBI1 / PGM |
| Chân 39 | RB6 — Digital I/O / KBI2 / PGC |
| Chân 40 | RB7 — Digital I/O / KBI3 / PGD |
| Chân 41 | AVDD — Analog positive supply |
| Chân 42 | AVSS — Analog ground |
| Chân 43 | RF1 — Digital I/O / analog AN11 / C2OUT |
| Chân 44 | RF2 — Digital I/O / analog AN12 |
| Chân 45 | RF3 — Digital I/O / analog AN13 |
| Chân 46 | RF4 — Digital I/O / analog AN14 |
| Chân 47 | RF5 — Digital I/O / analog AN15 |
| Chân 48 | RF6 — Digital I/O |
| Chân 49 | RF7 — Digital I/O |
| Chân 50 | RG0 — Digital I/O / CCP3 / P3A |
| Chân 51 | RG1 — Digital I/O / TX2 / CK2 |
| Chân 52 | RG2 — Digital I/O / RX2 / DT2 |
| Chân 53 | RG3 — Digital I/O / CCP4 / P3D |
| Chân 54 | RG4 — Digital I/O / CCP5 / P1E |
| Chân 55 | RH0 — Digital I/O / analog AN16 |
| Chân 56 | RH1 — Digital I/O / analog AN17 |
| Chân 57 | RH2 — Digital I/O / analog AN18 |
| Chân 58 | RH3 — Digital I/O / analog AN19 |
| Chân 59 | RH4 — Digital I/O |
| Chân 60 | RH5 — Digital I/O |
| Chân 61 | RH6 — Digital I/O |
| Chân 62 | RH7 — Digital I/O |
| Chân 63 | RJ0 — Digital I/O |
| Chân 64 | RJ1 — Digital I/O |
| Chân 65 | RJ2 — Digital I/O |
| Chân 66 | RJ3 — Digital I/O |
| Chân 67 | RJ4 — Digital I/O |
| Chân 68 | RJ5 — Digital I/O |
| Chân 69 | RJ6 — Digital I/O |
| Chân 70 | RJ7 — Digital I/O |
| Chân 71 | RK0 — Digital I/O / PSP8 |
| Chân 72 | RK1 — Digital I/O / PSP9 |
| Chân 73 | RK2 — Digital I/O / PSP10 |
| Chân 74 | RK3 — Digital I/O / PSP11 |
| Chân 75 | RK4 — Digital I/O / PSP12 |
| Chân 76 | RK5 — Digital I/O / PSP13 |
| Chân 77 | RK6 — Digital I/O / PSP14 |
| Chân 78 | RK7 — Digital I/O / PSP15 |
| Chân 79 | VDD — Positive supply |
| Chân 80 | VSS — Ground |
Ứng dụng tiêu biểu
PIC18LF8628T-I/PT phù hợp cho 7 Áp dụngs: Industrial Automation Controllers, HVAC Control Boards, Automotive Body and Instrument Clusters, Point-of-Sale Terminals, Building Automation Gateways, Embedded Graphical User Interfaces, Test and Measurement Front Panels.
Industrial Automation Controllers
The PIC18LF8628T-I/PT fits industrial automation because its 96 KB Flash, 4 KB SRAM, 16-channel 12-bit ADC, and 70 I/O pins can directly drive stepper drivers, read multi-zone thermocouples through external amplifiers, and multiplex 7-segment displays. The wide 2.0 V to 5.5 V supply lets a single MCU accept a 24 V industrial rail stepped down to 5 V or 3.3 V. Its 40 MHz / 10 MIPS throughput is sufficient for PID loop execution at 1 kHz update rate. The -40 C to +85 C industrial temperature range supports factory-floor deployments.
Được đề xuất
HVAC Control Boards
In HVAC controllers, the PIC18LF8628T-I/PT benefits from its 16 ADC channels (multiple temperature sensors, pressure transducers, humidity probes), 70 I/O pins (relay triac drivers, keypad scan, LCD bus), and low-voltage operation suitable for 3.3 V regulator rails. The 10 MIPS throughput can manage PID fan/blower loops and communicate with thermostats via UART or SPI. The 1024-byte data EEPROM is ideal for storing calibration constants and user-set schedules. The PIC18LF8680T-I/PT downgrades memory if cost is the priority.
Được đề xuất
Automotive Body and Instrument Clusters
Although the PIC18LF8628T-I/PT is not AEC-Q100 qualified, it is widely used in non-safety automotive body electronics such as door modules, mirror controllers, instrument cluster displays, and HVAC user interfaces. Its 16-channel 12-bit ADC samples multiple sensor inputs simultaneously, and the 70 I/O pins drive TFT displays, keypads, and LED matrices. Engineers typically pair it with CAN or LIN transceivers for in-vehicle networking. For AEC-Q100 automotive safety applications, designers must choose an automotive-qualified variant.
Được đề xuất
Point-of-Sale Terminals
Point-of-sale terminals benefit from the PIC18LF8628T-I/PT's 96 KB Flash (sufficient for USB stack, display rendering, and keypad handling), 4 KB SRAM (transaction buffers), and 70 I/O pins (thermal printer drive, keypad scan, LCD, magnetic-stripe reader). The MSSP SPI/I2C module connects to external secure element chips and EEPROM for cryptographic keys. The 1024-byte internal data EEPROM stores merchant configuration without external storage. Cost-effective 80-pin TQFP enables compact POS board layouts.
Được đề xuất
Building Automation Gateways
Building automation gateways rely on the PIC18LF8628T-I/PT to bridge sensor networks (Modbus, BACnet, KNX) with cloud uplinks. The 16 ADC channels aggregate analog sensors (CO2, light, occupancy), while the dual USARTs handle RS-485 bus arbitration. The 70 I/O drive relays, dimmers, and LCD status panels. With 4 KB SRAM, the MCU can buffer network frames before forwarding to higher-level processors. The wide 2.0 V to 5.5 V supply tolerates long cable-derived rail noise.
Được đề xuất
Embedded Graphical User Interfaces
Embedded GUIs with TFT or OLED panels choose the PIC18LF8628T-I/PT because 96 KB Flash holds frame-buffer descriptors, font tables, and screen flows; 4 KB SRAM holds temporary draw buffers; and 70 I/O drive the parallel display bus, touch controller, and backlight PWM. The 10 MIPS throughput is adequate for low-color-depth UIs at 30 Hz refresh when paired with an external display controller. The 1024-byte data EEPROM stores user preferences across reboots.
Được đề xuất
Test and Measurement Front Panels
Bench instruments and test fixtures use the PIC18LF8628T-I/PT for front-panel control: rotary encoder, keypad, function buttons, OLED display, and USB-to-host link. The 16 ADC channels read internal sensor data such as board temperature or fan tachometer, while the dual USARTs communicate with the main DSP or FPGA. The 1024-byte data EEPROM stores calibration certificates. The 80-pin TQFP footprint integrates seamlessly into 4-layer PCBs alongside precision analog front ends.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF8628T-I/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC18LF8722T-I/PT | PIC18LF8628-I/PT | PIC18F8628T-I/PT | PIC18LF8680T-I/PT | PIC18LF8585-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-80 (12x12) | TQFP-80 (12x12) - same | TQFP-80 (12x12) - same | TQFP-80 (12x12) - same | TQFP-80 (12x12) - same | TQFP-80 (12x12) - same |
| Program Flash | 96 KB | 128 KB (+33%) | 96 KB (same) | 96 KB (same) | 64 KB (-33%) | 48 KB (-50%) |
| SRAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 3 KB |
| EEPROM | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 4.2 V to 5.5 V (non-LF) | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| I/O Pins | 70 | 70 | 70 | 70 | 70 | 70 |
| ADC Channels | 16 channels x 12-bit | 16 channels x 12-bit | 16 channels x 12-bit | 16 channels x 12-bit | 12 channels x 12-bit | 12 channels x 12-bit |
| AEC-Q100 | Not qualified | Not qualified | Not qualified | Not qualified | Not qualified | Not qualified |
Bảo phân biệt quan trọng
- Larger Flash than the LF8680 (vsPIC18LF8680T-I/PT)
- More ADC channels than LF8585 (vsPIC18LF8585-I/PT)
- Lower-voltage operation than PIC18F8628 (vsPIC18F8628T-I/PT)
Ghi chú thiết kế
Place a 100 nF ceramic decoupling capacitor adjacent to every VDD/VSS pair on the PIC18LF8628T-I/PT and add a single 10 uF bulk capacitor near the regulator output. The 80-pin TQFP has multiple VDD/VSS pins distributed across the package, and failing to decouple each pair can cause brownouts under high-frequency switching loads. Analog supply AVDD should be filtered with a ferrite bead and 100 nF cap to keep ADC readings stable.
The 80-pin TQFP uses a 0.5 mm pitch footprint (12 mm x 12 mm body). Route signal traces on inner PCB layers for signal integrity, and keep a continuous ground plane beneath the device. Reserve MCLR pull-up, ICSP PGC/PGD test pads, and OSC1/OSC2 crystal traces short and symmetric. A 4-layer PCB is recommended for mixed-signal designs because the analog front end is sensitive to digital switching noise.
Do not operate the PIC18LF8628T-I/PT above 5.5 V - this is the LF variant with a 2.0 V to 5.5 V supply range. Substituting the non-LF PIC18F8628T-I/PT on the same board without confirming the 4.2 V minimum supply can latch up or damage the device at lower voltages. Also note that pins RE3, RG3, RG4, RH7, RJ7, and RK7 may be remapped as alternate functions; verify your configuration bits against the datasheet before locking the design.
When driving long cables or high-speed peripherals, add source-series termination on outputs driving more than 50 mm of trace to prevent ringing. The MSSP SPI bus can run up to FOSC/4 (10 MHz at 40 MHz clock) but signal integrity deteriorates above 5 MHz without careful layout. For 12-bit ADC accuracy, place analog traces away from switching digital lines and use a guarded analog ground plane.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - for automotive safety applications, choose an automotive-qualified PIC18 derivative.
