PIC18LF8622T-I/PT - 8-Bit MCU, 64KB Flash, 40MHz, 80-TQFP | Microchip
MPN: PIC18LF8622T-I/PT ✓ نشطPIC18LF8622T-I/PT نظرة عامة
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.
بدائل مباشرة لـ PIC18LF8622T-I/PT — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC18LF8622T-I/PT (نفس عامل الشكل والبصمة) — يختلف في Package, RoHS Status, Maximum CPU Speed, Program Memory (Flash), Core.
PIC18LF8622-I/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC18LF8722T-I/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC18LF8627T-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F8622T-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F8722T-I/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC18F8627T-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18LF8622T-I/PT الحدود القصوى والخصائص الكهربائية
| 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 |
| العلبة | 80-pin TQFP (12 x 12 mm, 0.5 mm pitch) |
| درجة حرارة التشغيل | -40 C to +85 C (Industrial) |
| نوع التركيب | Surface Mount |
| حالة RoHS | Compliant (Pb-Free) |
| Packaging Format | Tape & Reel (T suffix) |
تكوين أطراف PIC18LF8622T-I/PT
| دبوس 1 | RF2 — Port F bit 2 (digital I/O) |
| دبوس 2 | RF3 — Port F bit 3 (digital I/O) |
| دبوس 3 | RF4 — Port F bit 4 (digital I/O) |
| دبوس 4 | RF5 — Port F bit 5 (digital I/O) |
| دبوس 5 | RF6 — Port F bit 6 (digital I/O) |
| دبوس 6 | RF7 — Port F bit 7 (digital I/O) |
| دبوس 7 | AVDD — Analog supply voltage |
| دبوس 8 | AVSS — Analog ground |
| دبوس 9 | RA0/AN0 — Port A bit 0 / Analog input 0 |
| دبوس 10 | RA1/AN1 — Port A bit 1 / Analog input 1 |
| دبوس 11 | VDD — Digital supply voltage |
| دبوس 12 | VSS — Digital ground |
| دبوس 13 | RA2/AN2/VREF- — Port A bit 2 / Analog input 2 / VREF- |
| دبوس 14 | RA3/AN3/VREF+ — Port A bit 3 / Analog input 3 / VREF+ |
| دبوس 15 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| دبوس 16 | RA5/AN4/SS/HLVDIN — Port A bit 5 / Analog input 4 / SPI SS / HLVD input |
| دبوس 17 | RA6 — Port A bit 6 (digital I/O) |
| دبوس 18 | OSC1/CLKIN — Crystal oscillator input / external clock in |
| دبوس 19 | OSC2/CLKOUT — Crystal oscillator output / clock out |
| دبوس 20 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator output / Timer1 clock in |
| دبوس 21 | RC1/T1OSI — Port C bit 1 / Timer1 oscillator input |
| دبوس 22 | RC2/CCP1 — Port C bit 2 / CCP1 PWM output |
| دبوس 23 | RC3/SCK/SCL — Port C bit 3 / SPI SCK / I2C SCL |
| دبوس 24 | RC4/SDI/SDA — Port C bit 4 / SPI SDI / I2C SDA |
| دبوس 25 | RC5/SDO — Port C bit 5 / SPI SDO |
| دبوس 26 | RC6/TX/CK — Port C bit 6 / USART TX / USART clock |
| دبوس 27 | RC7/RX/DT — Port C bit 7 / USART RX / USART data |
| دبوس 28 | RD0/PSP0 — Port D bit 0 / Parallel Slave Port bit 0 |
| دبوس 29 | RD1/PSP1 — Port D bit 1 / Parallel Slave Port bit 1 |
| دبوس 30 | RD2/PSP2 — Port D bit 2 / Parallel Slave Port bit 2 |
| دبوس 31 | VSS — Digital ground |
| دبوس 32 | VDD — Digital supply voltage |
| دبوس 33 | RD3/PSP3 — Port D bit 3 / Parallel Slave Port bit 3 |
| دبوس 34 | RD4/PSP4 — Port D bit 4 / Parallel Slave Port bit 4 |
| دبوس 35 | RD5/PSP5 — Port D bit 5 / Parallel Slave Port bit 5 |
| دبوس 36 | RD6/PSP6 — Port D bit 6 / Parallel Slave Port bit 6 |
| دبوس 37 | RD7/PSP7 — Port D bit 7 / Parallel Slave Port bit 7 |
| دبوس 38 | VSS — Digital ground (PT package) |
| دبوس 39 | RE0/RD/AN5 — Port E bit 0 / RD control / Analog input 5 |
| دبوس 40 | RE1/WR/AN6 — Port E bit 1 / WR control / Analog input 6 |
| دبوس 41 | RE2/CS/AN7 — Port E bit 2 / CS control / Analog input 7 |
| دبوس 42 | RE3 — Port E bit 3 (digital I/O) |
| دبوس 43 | MCLR — Master Clear (reset) input |
| دبوس 44 | RG0 — Port G bit 0 (digital I/O) |
| دبوس 45 | RG1 — Port G bit 1 (digital I/O) |
| دبوس 46 | RG2 — Port G bit 2 (digital I/O) |
| دبوس 47 | RG3 — Port G bit 3 (digital I/O) |
| دبوس 48 | RG4 — Port G bit 4 (digital I/O) |
| دبوس 49 | RG5 — Port G bit 5 (digital I/O) |
| دبوس 50 | VDD — Digital supply voltage |
| دبوس 51 | VSS — Digital ground |
| دبوس 52 | RG6 — Port G bit 6 (digital I/O) |
| دبوس 53 | RG7 — Port G bit 7 (digital I/O) |
| دبوس 54 | VDD — Digital supply voltage |
| دبوس 55 | VSS — Digital ground |
| دبوس 56 | RH0 — Port H bit 0 (digital I/O) |
| دبوس 57 | RH1 — Port H bit 1 (digital I/O) |
| دبوس 58 | RH2 — Port H bit 2 (digital I/O) |
| دبوس 59 | RH3 — Port H bit 3 (digital I/O) |
| دبوس 60 | RH4 — Port H bit 4 (digital I/O) |
| دبوس 61 | RH5 — Port H bit 5 (digital I/O) |
| دبوس 62 | RH6 — Port H bit 6 (digital I/O) |
| دبوس 63 | RH7 — Port H bit 7 (digital I/O) |
| دبوس 64 | RJ0 — Port J bit 0 (digital I/O) |
| دبوس 65 | RJ1 — Port J bit 1 (digital I/O) |
| دبوس 66 | RJ2 — Port J bit 2 (digital I/O) |
| دبوس 67 | RJ3 — Port J bit 3 (digital I/O) |
| دبوس 68 | RJ4 — Port J bit 4 (digital I/O) |
| دبوس 69 | RJ5 — Port J bit 5 (digital I/O) |
| دبوس 70 | RJ6 — Port J bit 6 (digital I/O) |
| دبوس 71 | RJ7 — Port J bit 7 (digital I/O) |
| دبوس 72 | RB0/INT0 — Port B bit 0 / External interrupt 0 |
| دبوس 73 | RB1/INT1 — Port B bit 1 / External interrupt 1 |
| دبوس 74 | RB2/INT2 — Port B bit 2 / External interrupt 2 |
| دبوس 75 | RB3/INT3/CCP2 — Port B bit 3 / External interrupt 3 / CCP2 |
| دبوس 76 | RB4 — Port B bit 4 (digital I/O / interrupt-on-change) |
| دبوس 77 | RB5 — Port B bit 5 (digital I/O / interrupt-on-change) |
| دبوس 78 | RB6/PGC — Port B bit 6 / In-Circuit Debugger clock |
| دبوس 79 | VDD — Digital supply voltage |
| دبوس 80 | RB7/PGD — Port B bit 7 / In-Circuit Debugger data |
التطبيقات النموذجية
PIC18LF8622T-I/PT مناسب لـ 6 التطبيقs: 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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC18LF8622T-I/PT — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | 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 |
أبرز الفروقات
- Wide operating voltage range 2.0 V to 5.5 V (مقابلPIC18F8622T-I/PT)
- Same TQFP-80 footprint with pin-to-pin compatibility across Flash densities (مقابلPIC18LF8627T-I/PT)
- Highest Flash density drop-in option (مقابلPIC18LF8722T-I/PT)
ملاحظات التصميم
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.
معلومات الامتثال
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.
