PIC18LF8622T-I/PT - 8-Bit MCU, 64KB Flash, 40MHz, 80-TQFP | Microchip
N.º da peça: PIC18LF8622T-I/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $9.5 | $9,50 |
| 10 | $8.78 | $87,80 |
| 100 | $7.45 | $745,00 |
| 500 | $6.62 | $3.310,00 |
| 1.000 | $6.05 | $6.050,00 |
PIC18LF8622T-I/PT Visão geral
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.
Alternativas drop-in para PIC18LF8622T-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 PIC18LF8622T-I/PT (mesmo formato e footprint) — diferindo em Package, RoHS Status, Maximum CPU Speed, Program Memory (Flash), Core.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18LF8622-I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18LF8722T-I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18LF8627T-I/PT
✅ Drop-In✓ Em estoque
$7.1 / unidade
Ver ficha técnica →PIC18F8622T-I/PT
✅ Drop-In✓ Em estoque
$5.3 / unidade
Ver ficha técnica →PIC18F8722T-I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18F8627T-I/PT
✅ Drop-In✓ Em estoque
$7.32 / unidade
Ver ficha técnica →PIC18LF8622T-I/PT Classificações máximas e características elétricas
| 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 |
| Encapsulamento | 80-pin TQFP (12 x 12 mm, 0.5 mm pitch) |
| Temperatura de operação | -40 C to +85 C (Industrial) |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant (Pb-Free) |
| Packaging Format | Tape & Reel (T suffix) |
Configuração de pinos do PIC18LF8622T-I/PT
| Pino 1 | RF2 — Port F bit 2 (digital I/O) |
| Pino 2 | RF3 — Port F bit 3 (digital I/O) |
| Pino 3 | RF4 — Port F bit 4 (digital I/O) |
| Pino 4 | RF5 — Port F bit 5 (digital I/O) |
| Pino 5 | RF6 — Port F bit 6 (digital I/O) |
| Pino 6 | RF7 — Port F bit 7 (digital I/O) |
| Pino 7 | AVDD — Analog supply voltage |
| Pino 8 | AVSS — Analog ground |
| Pino 9 | RA0/AN0 — Port A bit 0 / Analog input 0 |
| Pino 10 | RA1/AN1 — Port A bit 1 / Analog input 1 |
| Pino 11 | VDD — Digital supply voltage |
| Pino 12 | VSS — Digital ground |
| Pino 13 | RA2/AN2/VREF- — Port A bit 2 / Analog input 2 / VREF- |
| Pino 14 | RA3/AN3/VREF+ — Port A bit 3 / Analog input 3 / VREF+ |
| Pino 15 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| Pino 16 | RA5/AN4/SS/HLVDIN — Port A bit 5 / Analog input 4 / SPI SS / HLVD input |
| Pino 17 | RA6 — Port A bit 6 (digital I/O) |
| Pino 18 | OSC1/CLKIN — Crystal oscillator input / external clock in |
| Pino 19 | OSC2/CLKOUT — Crystal oscillator output / clock out |
| Pino 20 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator output / Timer1 clock in |
| Pino 21 | RC1/T1OSI — Port C bit 1 / Timer1 oscillator input |
| Pino 22 | RC2/CCP1 — Port C bit 2 / CCP1 PWM output |
| Pino 23 | RC3/SCK/SCL — Port C bit 3 / SPI SCK / I2C SCL |
| Pino 24 | RC4/SDI/SDA — Port C bit 4 / SPI SDI / I2C SDA |
| Pino 25 | RC5/SDO — Port C bit 5 / SPI SDO |
| Pino 26 | RC6/TX/CK — Port C bit 6 / USART TX / USART clock |
| Pino 27 | RC7/RX/DT — Port C bit 7 / USART RX / USART data |
| Pino 28 | RD0/PSP0 — Port D bit 0 / Parallel Slave Port bit 0 |
| Pino 29 | RD1/PSP1 — Port D bit 1 / Parallel Slave Port bit 1 |
| Pino 30 | RD2/PSP2 — Port D bit 2 / Parallel Slave Port bit 2 |
| Pino 31 | VSS — Digital ground |
| Pino 32 | VDD — Digital supply voltage |
| Pino 33 | RD3/PSP3 — Port D bit 3 / Parallel Slave Port bit 3 |
| Pino 34 | RD4/PSP4 — Port D bit 4 / Parallel Slave Port bit 4 |
| Pino 35 | RD5/PSP5 — Port D bit 5 / Parallel Slave Port bit 5 |
| Pino 36 | RD6/PSP6 — Port D bit 6 / Parallel Slave Port bit 6 |
| Pino 37 | RD7/PSP7 — Port D bit 7 / Parallel Slave Port bit 7 |
| Pino 38 | VSS — Digital ground (PT package) |
| Pino 39 | RE0/RD/AN5 — Port E bit 0 / RD control / Analog input 5 |
| Pino 40 | RE1/WR/AN6 — Port E bit 1 / WR control / Analog input 6 |
| Pino 41 | RE2/CS/AN7 — Port E bit 2 / CS control / Analog input 7 |
| Pino 42 | RE3 — Port E bit 3 (digital I/O) |
| Pino 43 | MCLR — Master Clear (reset) input |
| Pino 44 | RG0 — Port G bit 0 (digital I/O) |
| Pino 45 | RG1 — Port G bit 1 (digital I/O) |
| Pino 46 | RG2 — Port G bit 2 (digital I/O) |
| Pino 47 | RG3 — Port G bit 3 (digital I/O) |
| Pino 48 | RG4 — Port G bit 4 (digital I/O) |
| Pino 49 | RG5 — Port G bit 5 (digital I/O) |
| Pino 50 | VDD — Digital supply voltage |
| Pino 51 | VSS — Digital ground |
| Pino 52 | RG6 — Port G bit 6 (digital I/O) |
| Pino 53 | RG7 — Port G bit 7 (digital I/O) |
| Pino 54 | VDD — Digital supply voltage |
| Pino 55 | VSS — Digital ground |
| Pino 56 | RH0 — Port H bit 0 (digital I/O) |
| Pino 57 | RH1 — Port H bit 1 (digital I/O) |
| Pino 58 | RH2 — Port H bit 2 (digital I/O) |
| Pino 59 | RH3 — Port H bit 3 (digital I/O) |
| Pino 60 | RH4 — Port H bit 4 (digital I/O) |
| Pino 61 | RH5 — Port H bit 5 (digital I/O) |
| Pino 62 | RH6 — Port H bit 6 (digital I/O) |
| Pino 63 | RH7 — Port H bit 7 (digital I/O) |
| Pino 64 | RJ0 — Port J bit 0 (digital I/O) |
| Pino 65 | RJ1 — Port J bit 1 (digital I/O) |
| Pino 66 | RJ2 — Port J bit 2 (digital I/O) |
| Pino 67 | RJ3 — Port J bit 3 (digital I/O) |
| Pino 68 | RJ4 — Port J bit 4 (digital I/O) |
| Pino 69 | RJ5 — Port J bit 5 (digital I/O) |
| Pino 70 | RJ6 — Port J bit 6 (digital I/O) |
| Pino 71 | RJ7 — Port J bit 7 (digital I/O) |
| Pino 72 | RB0/INT0 — Port B bit 0 / External interrupt 0 |
| Pino 73 | RB1/INT1 — Port B bit 1 / External interrupt 1 |
| Pino 74 | RB2/INT2 — Port B bit 2 / External interrupt 2 |
| Pino 75 | RB3/INT3/CCP2 — Port B bit 3 / External interrupt 3 / CCP2 |
| Pino 76 | RB4 — Port B bit 4 (digital I/O / interrupt-on-change) |
| Pino 77 | RB5 — Port B bit 5 (digital I/O / interrupt-on-change) |
| Pino 78 | RB6/PGC — Port B bit 6 / In-Circuit Debugger clock |
| Pino 79 | VDD — Digital supply voltage |
| Pino 80 | RB7/PGD — Port B bit 7 / In-Circuit Debugger data |
Aplicações típicas
PIC18LF8622T-I/PT é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18LF8622T-I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- Wide operating voltage range 2.0 V to 5.5 V (vs PIC18F8622T-I/PT)
- Same TQFP-80 footprint with pin-to-pin compatibility across Flash densities (vs PIC18LF8627T-I/PT)
- Highest Flash density drop-in option (vs PIC18LF8722T-I/PT)
Notas de projeto
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.
Informações de conformidade
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.
