PIC18LF8622T-I/PT - 8-Bit MCU, 64KB Flash, 40MHz, 80-TQFP | Microchip
MPN: PIC18LF8622T-I/PT ✓ Hoạt độngPIC18LF8622T-I/PT Tóm tắt
A PIC18F microcontroller belongs to the 8-bit RISC microcontroller category, designed around Microchip's enhanced PIC18 architecture that delivers up to 10 MIPS at 40 MHz. The PIC18 family sits within the broader hierarchy of microcontroller -> embedded MCU -> semiconductor, and is widely deployed in industrial, automotive aftermarket, and consumer applications requiring deterministic real-time performance and rich peripheral integration.
Key features include 64 KB (32K x 16 words) of self-programmable Flash program memory, 4 KB of general-purpose SRAM, an integrated 10-bit ADC with up to 16 channels, multiple USART, SPI, and I2C peripherals, and a 16-bit timer/counter array. The 70 available I/O pins support a wide range of mixed-signal interfacing tasks, while on-chip EEPROM emulation through Flash self-write enables robust non-volatile data storage without external memory.
The 'LF' prefix in PIC18LF8622 denotes the low-voltage full-Vdd operating range variant that supports 2.0V-5.5V supplies, in contrast to the 'F' variant which requires 4.2V-5.5V. The PIC18LF8622T-I/PT specifically is the tape-and-reel (-T) industrial-grade (-I/PT) packaging, where /PT identifies the 80-pin TQFP package. The device integrates Microchip's nanoWatt Technology power management with multiple Idle and Sleep modes to extend battery life in energy-conscious designs.
Typical applications include industrial control panels, HVAC controllers, motor drive front-ends, instrumentation, and human-machine interface (HMI) terminals where the combination of 70 I/O pins, large Flash capacity, and CAN/USB/Ethernet-friendly peripheral set is advantageous. The wide operating voltage also makes it suitable for 5V industrial bus architectures.
When designing with this part, ensure the PCB layout provides adequate 0.1 uF decoupling on every Vdd/Vss pair and a low-impedance ground plane beneath the TQFP thermal pad. Programmer/debugger selection should target MPLAB ICD 3 or MPLAB PICkit 3/4 with the ICSP interface, and unused I/O pins must be configured as outputs low to minimize quiescent current.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found on the manufacturer datasheet cover page.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF8622T-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 PIC18LF8622T-I/PT (cùng hình factor và footprint) — khác nhau ở Package, RoHS Status, Maximum CPU Speed, Program Memory (Flash), Core.
PIC18LF8622-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF8722T-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF8627T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F8622T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F8722T-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F8627T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF8622T-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18 (8-bit RISC, enhanced) |
| Program Memory (Flash) | 64 KB (32K x 16 words) |
| RAM | 4 KB |
| Maximum CPU Speed | 40 MHz (10 MIPS) |
| Supply Voltage (VDD) | 2.0 V to 5.5 V (LF full Vdd range) |
| I/O Pins | 70 |
| Hộp | 80-pin TQFP (12 x 12 mm, 0.5 mm pitch) |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant (Pb-Free) |
| Packaging Format | Tape & Reel (T suffix) |
Cấu hình chân PIC18LF8622T-I/PT
| Chân 1 | RF2 — Port F bit 2 (digital I/O) |
| Chân 2 | RF3 — Port F bit 3 (digital I/O) |
| Chân 3 | RF4 — Port F bit 4 (digital I/O) |
| Chân 4 | RF5 — Port F bit 5 (digital I/O) |
| Chân 5 | RF6 — Port F bit 6 (digital I/O) |
| Chân 6 | RF7 — Port F bit 7 (digital I/O) |
| Chân 7 | AVDD — Analog supply voltage |
| Chân 8 | AVSS — Analog ground |
| Chân 9 | RA0/AN0 — Port A bit 0 / Analog input 0 |
| Chân 10 | RA1/AN1 — Port A bit 1 / Analog input 1 |
| Chân 11 | VDD — Digital supply voltage |
| Chân 12 | VSS — Digital ground |
| Chân 13 | RA2/AN2/VREF- — Port A bit 2 / Analog input 2 / VREF- |
| Chân 14 | RA3/AN3/VREF+ — Port A bit 3 / Analog input 3 / VREF+ |
| Chân 15 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| Chân 16 | RA5/AN4/SS/HLVDIN — Port A bit 5 / Analog input 4 / SPI SS / HLVD input |
| Chân 17 | RA6 — Port A bit 6 (digital I/O) |
| Chân 18 | OSC1/CLKIN — Crystal oscillator input / external clock in |
| Chân 19 | OSC2/CLKOUT — Crystal oscillator output / clock out |
| Chân 20 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator output / Timer1 clock in |
| Chân 21 | RC1/T1OSI — Port C bit 1 / Timer1 oscillator input |
| Chân 22 | RC2/CCP1 — Port C bit 2 / CCP1 PWM output |
| Chân 23 | RC3/SCK/SCL — Port C bit 3 / SPI SCK / I2C SCL |
| Chân 24 | RC4/SDI/SDA — Port C bit 4 / SPI SDI / I2C SDA |
| Chân 25 | RC5/SDO — Port C bit 5 / SPI SDO |
| Chân 26 | RC6/TX/CK — Port C bit 6 / USART TX / USART clock |
| Chân 27 | RC7/RX/DT — Port C bit 7 / USART RX / USART data |
| Chân 28 | RD0/PSP0 — Port D bit 0 / Parallel Slave Port bit 0 |
| Chân 29 | RD1/PSP1 — Port D bit 1 / Parallel Slave Port bit 1 |
| Chân 30 | RD2/PSP2 — Port D bit 2 / Parallel Slave Port bit 2 |
| Chân 31 | VSS — Digital ground |
| Chân 32 | VDD — Digital supply voltage |
| Chân 33 | RD3/PSP3 — Port D bit 3 / Parallel Slave Port bit 3 |
| Chân 34 | RD4/PSP4 — Port D bit 4 / Parallel Slave Port bit 4 |
| Chân 35 | RD5/PSP5 — Port D bit 5 / Parallel Slave Port bit 5 |
| Chân 36 | RD6/PSP6 — Port D bit 6 / Parallel Slave Port bit 6 |
| Chân 37 | RD7/PSP7 — Port D bit 7 / Parallel Slave Port bit 7 |
| Chân 38 | VSS — Digital ground (PT package) |
| Chân 39 | RE0/RD/AN5 — Port E bit 0 / RD control / Analog input 5 |
| Chân 40 | RE1/WR/AN6 — Port E bit 1 / WR control / Analog input 6 |
| Chân 41 | RE2/CS/AN7 — Port E bit 2 / CS control / Analog input 7 |
| Chân 42 | RE3 — Port E bit 3 (digital I/O) |
| Chân 43 | MCLR — Master Clear (reset) input |
| Chân 44 | RG0 — Port G bit 0 (digital I/O) |
| Chân 45 | RG1 — Port G bit 1 (digital I/O) |
| Chân 46 | RG2 — Port G bit 2 (digital I/O) |
| Chân 47 | RG3 — Port G bit 3 (digital I/O) |
| Chân 48 | RG4 — Port G bit 4 (digital I/O) |
| Chân 49 | RG5 — Port G bit 5 (digital I/O) |
| Chân 50 | VDD — Digital supply voltage |
| Chân 51 | VSS — Digital ground |
| Chân 52 | RG6 — Port G bit 6 (digital I/O) |
| Chân 53 | RG7 — Port G bit 7 (digital I/O) |
| Chân 54 | VDD — Digital supply voltage |
| Chân 55 | VSS — Digital ground |
| Chân 56 | RH0 — Port H bit 0 (digital I/O) |
| Chân 57 | RH1 — Port H bit 1 (digital I/O) |
| Chân 58 | RH2 — Port H bit 2 (digital I/O) |
| Chân 59 | RH3 — Port H bit 3 (digital I/O) |
| Chân 60 | RH4 — Port H bit 4 (digital I/O) |
| Chân 61 | RH5 — Port H bit 5 (digital I/O) |
| Chân 62 | RH6 — Port H bit 6 (digital I/O) |
| Chân 63 | RH7 — Port H bit 7 (digital I/O) |
| Chân 64 | RJ0 — Port J bit 0 (digital I/O) |
| Chân 65 | RJ1 — Port J bit 1 (digital I/O) |
| Chân 66 | RJ2 — Port J bit 2 (digital I/O) |
| Chân 67 | RJ3 — Port J bit 3 (digital I/O) |
| Chân 68 | RJ4 — Port J bit 4 (digital I/O) |
| Chân 69 | RJ5 — Port J bit 5 (digital I/O) |
| Chân 70 | RJ6 — Port J bit 6 (digital I/O) |
| Chân 71 | RJ7 — Port J bit 7 (digital I/O) |
| Chân 72 | RB0/INT0 — Port B bit 0 / External interrupt 0 |
| Chân 73 | RB1/INT1 — Port B bit 1 / External interrupt 1 |
| Chân 74 | RB2/INT2 — Port B bit 2 / External interrupt 2 |
| Chân 75 | RB3/INT3/CCP2 — Port B bit 3 / External interrupt 3 / CCP2 |
| Chân 76 | RB4 — Port B bit 4 (digital I/O / interrupt-on-change) |
| Chân 77 | RB5 — Port B bit 5 (digital I/O / interrupt-on-change) |
| Chân 78 | RB6/PGC — Port B bit 6 / In-Circuit Debugger clock |
| Chân 79 | VDD — Digital supply voltage |
| Chân 80 | RB7/PGD — Port B bit 7 / In-Circuit Debugger data |
Ứng dụng tiêu biểu
PIC18LF8622T-I/PT phù hợp cho 6 Áp dụngs: Industrial Control Panels, HVAC Climate Controllers, Motor Drive Front-Ends, Human-Machine Interface (HMI) Terminals, Instrumentation and Data Loggers, Point-of-Sale Terminals and Printers.
Industrial Control Panels
The PIC18LF8622T-I/PT suits industrial control panels with its 70 I/O pins for driving 7-segment displays, key matrices, and 24V opto-isolated inputs. The 2.0-5.5V wide-voltage range lets designers integrate it directly on 3.3V logic rails with 5V signal conditioning, while the 10 MIPS throughput runs ladder-logic and Modbus RTU state machines without timing pressure.
Được đề xuất
HVAC Climate Controllers
The PIC18LF8622T-I/PT drives HVAC climate controllers with its 10-bit ADC for temperature/humidity sensor conditioning and PWM/CCP channels for fan speed and damper control. The nanoWatt Sleep modes reduce standby power below 1 uA for thermostats meeting EnergyStar requirements, and the 70 I/Os handle LCD glass, keypad, and relay outputs on a single chip without external glue logic.
Được đề xuất
Motor Drive Front-Ends
The PIC18LF8622T-I/PT functions as a motor drive front-end controller, generating PWM signals for three-phase inverters and reading back current/voltage feedback through its ADC. The 40 MHz clock and 10 MIPS throughput support sensorless FOC algorithms for low-RPM BLDC pumps and fans, while 70 I/Os handle multiple motor channels plus CAN-based communication with a supervisory controller.
Được đề xuất
Human-Machine Interface (HMI) Terminals
The PIC18LF8622T-I/PT powers HMI terminals with its 64 KB Flash holding graphical menus, the 4 KB RAM buffering LCD frame data, and 70 I/Os scanning matrix keypads and driving character or graphic LCDs. The wide 2.0-5.5V supply accepts 3.3V from PoE or 5V from USB rails, simplifying power tree design in wall-mounted operator panels.
Được đề xuất
Instrumentation and Data Loggers
The PIC18LF8622T-I/PT suits instrumentation data loggers thanks to 64 KB Flash for storing configuration profiles and 4 KB RAM buffering sample arrays before SD-card flush. The 10-bit ADC with 16 channels multiplexes thermocouples, pressure transducers, and 4-20 mA loop inputs, while the RTC-style Timer1 with external 32.768 kHz crystal provides timestamping during low-power sleep cycles.
Được đề xuất
Point-of-Sale Terminals and Printers
The PIC18LF8622T-I/PT drives POS terminals and receipt printers using its USART for fiscal printer communication, SPI for SD-card storage of transactions, and I2C for thermal printhead control. The 70 I/Os handle keypad, customer display, cash drawer, and barcode scanner interfaces simultaneously, while the 40 MHz performance encrypts transactions without throughput bottlenecks.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF8622T-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 | PIC18LF8622-I/PT | PIC18LF8722T-I/PT | PIC18LF8627T-I/PT | PIC18F8622T-I/PT | PIC18F8722T-I/PT | PIC18F8627T-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-80 (12x12 mm) | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same |
| Program Memory (Flash) | 64 KB | 64 KB | 128 KB | 96 KB | 64 KB | 128 KB | 96 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| Operating Voltage | 2.0 V to 5.5 V | 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 | 4.2 V to 5.5 V | 4.2 V to 5.5 V |
| Maximum Clock Speed | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) |
| I/O Pins | 70 | 70 | 70 | 70 | 70 | 70 | 70 |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| Packaging Format | Tape & Reel | Tray | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
| Pin Match (Drop-in) | Reference | Yes - 100% pin-to-pin | Yes - 100% pin-to-pin | Yes - 100% pin-to-pin | Yes - 100% pin-to-pin | Yes - 100% pin-to-pin | Yes - 100% pin-to-pin |
Bảo phân biệt quan trọng
- Wide operating voltage range 2.0 V to 5.5 V (vsPIC18F8622T-I/PT)
- Same TQFP-80 footprint with pin-to-pin compatibility across Flash densities (vsPIC18LF8627T-I/PT)
- Highest Flash density drop-in option (vsPIC18LF8722T-I/PT)
Ghi chú thiết kế
Place one 0.1 uF decoupling capacitor on every VDD pin (11, 32, 50, 54, 79) and one bulk 10 uF tantalum on the supply rail feeding the device. The PIC18LF8622T-I/PT has five VDD pins; each must see a low-impedance path to the supply within 5 mm trace length. AVDD (pin 7) should be filtered with a ferrite bead from VDD, and AVSS (pin 8) tied directly to the ground plane to keep ADC readings within datasheet accuracy at 10-bit resolution.
Configure all unused I/O pins as digital outputs driven low, never leave them floating - floating inputs toggle randomly and consume up to 100 uA per pin in deep Sleep mode. Configure the MCLR pin (pin 43) with a 10 kohm pull-up to VDD and a 100 nF capacitor to ground for noise immunity. The oscillator must use a crystal or resonator within 20 pF load capacitance per the datasheet, otherwise HS mode may fail to start at -40 C.
Route the ICSP signals PGC (RB6, pin 78) and PGD (RB7, pin 80) with short, parallel traces less than 50 mm in length to ensure reliable in-circuit debugging. Place the ICSP connector on the same PCB edge as the MCU with a 100-ohm series termination on PGD for noise rejection. Avoid routing digital switching signals (PWM, USART) within 5 mm of the AVDD/AVSS analog pair to minimize ADC crosstalk at full 10 ksps sampling rates.
Estimated: At 40 MHz operation with 5.5 V VDD and 70 I/Os at full swing, the PIC18LF8622T-I/PT consumes approximately 80 mA (typical 60 mA). For the TQFP-80 package with theta-JA of approximately 50 C/W on a 4-layer JEDEC test board, this translates to a 4 C temperature rise. In enclosed industrial cabinets at +70 C ambient, junction temperature remains well below the +125 C maximum. For sealed enclosures above +85 C ambient, derate the clock speed or add thermal vias beneath the TQFP thermal pad.
Thông tin tuân thủ
RoHS and lead-free per Microchip product page. Not AEC-Q100 qualified - this is a commercial/industrial grade part. For automotive applications choose PIC18F8622-I/PT or PIC18F8622-E/PT extended-temperature variants.
