PIC18F85K22T-I/PT - 8-Bit XLP MCU, 32KB Flash, 80-TQFP | Microchip
N.º da peça: PIC18F85K22T-I/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $6.85 | $6,85 |
| 10 | $6.21 | $62,10 |
| 100 | $5.52 | $552,00 |
| 500 | $4.95 | $2.475,00 |
| 1.000 | $4.4 | $4.400,00 |
PIC18F85K22T-I/PT Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and programmable peripheral interfaces. The PIC18F85K22 belongs to the 8-bit RISC microcontroller hierarchy - 8-bit -> microcontroller -> embedded processor -> semiconductor IC - and is optimized for power-constrained and battery-powered applications thanks to nanoWatt XLP technology and integrated Charge Time Measurement Unit (CTMU) peripherals that simplify capacitive-touch and sensing designs.
Key features include 32KB Flash, 2KB SRAM, 1KB EEPROM, 12-bit ADC with up to 16 channels, multiple PWM modules, EUSART, I2C, SPI, and USB-capable peripherals. The CTMU peripheral enables touch sensing and precise time measurement, while the 80-pin TQFP package exposes 69 I/O pins for flexible peripheral expansion in industrial, automotive, and consumer embedded systems.
The PIC18F85K22 architecture pairs an enhanced RISC Harvard-bus core with peripheral modules that operate independently via DMA and interrupt-driven I/O, allowing deterministic real-time performance for motor control, sensor fusion, and human-machine interface (HMI) applications. The wide 1.8V-5.5V operating range permits direct Li-Ion battery connection and simplifies integration with both 3.3V and 5V system rails.
Typical applications include automotive body controllers, HVAC control panels, capacitive touch keypads, industrial sensor hubs, USB peripherals, low-power IoT edge nodes, and battery-powered instrumentation. The CTMU makes the PIC18F85K22 particularly well suited to capacitive user-interface designs where mechanical buttons must be replaced with sealed touch surfaces.
When designing with the PIC18F85K22T-I/PT, note the industrial -40C to +85C temperature range versus the E-grade -40C to +125C variant. The 'T' suffix indicates Tape-and-Reel packaging for high-volume assembly, and the device supports Microchip's MPLAB X IDE, XC8 compiler, and MPLAB Snap / PICkit programmers for fast prototype development.
This page synthesizes distributor pricing, drop-in alternatives, application guidance, and design notes not consolidated on the manufacturer datasheet, giving engineers a single reference for the PIC18F85K22T-I/PT selection and sourcing decision.
Alternativas drop-in para PIC18F85K22T-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 PIC18F85K22T-I/PT (mesmo formato e footprint) — diferindo em Package, ADC, Program Memory (Flash), I/O Pins, Core Architecture.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18F87K22T-I/PT
✅ Drop-In✓ Em estoque
$7.95 / unidade
Ver ficha técnica →PIC18F85K22-I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18F85K22-E/PT
✅ Drop-In✓ Em estoque
$4.55 / unidade
Ver ficha técnica →PIC18F86K22T-I/PT
✅ Drop-In✓ Em estoque
$2.3 / unidade
Ver ficha técnica →PIC18F67K22T-I/PT
✅ Drop-In✓ Em estoque
$3.96 / unidade
Ver ficha técnica →PIC18F85J94-I/PT
✅ Drop-In✓ Em estoque
$4.85 / unidade
Ver ficha técnica →PIC18F85K22T-I/PT Classificações máximas e características elétricas
| Core Architecture | PIC18 8-bit RISC |
| Program Memory (Flash) | 32 KB (16K x 16) |
| RAM | 2 KB |
| EEPROM | 1 KB |
| Maximum CPU Speed | 64 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V |
| Faixa de temperatura de operação | -40C to +85C (Industrial) |
| I/O Pins | 69 |
| Encapsulamento | 80-TQFP (12x12 mm) |
| Tipo de montagem | Surface Mount |
| A/D Converter | 12-bit, up to 16 channels |
| Communication Interfaces | EUSART, I2C, SPI |
| Special Features | nanoWatt XLP, CTMU, PWM, ECAN |
| Packaging | Tape and Reel |
| Status RoHS | Compliant |
Configuração de pinos do PIC18F85K22T-I/PT
| Pino 1 | RH0 — PORT H I/O pin 0 |
| Pino 2 | RH1 — PORT H I/O pin 1 |
| Pino 3 | RH2 — PORT H I/O pin 2 |
| Pino 4 | RH3 — PORT H I/O pin 3 |
| Pino 5 | RH4 — PORT H I/O pin 4 |
| Pino 6 | RH5 — PORT H I/O pin 5 |
| Pino 7 | RH6 — PORT H I/O pin 6 |
| Pino 8 | RH7 — PORT H I/O pin 7 |
| Pino 9 | VSS — Ground reference |
| Pino 10 | VDD — Positive supply voltage (1.8V-5.5V) |
| Pino 11 | AVSS — Analog ground |
| Pino 12 | AVDD — Analog positive supply |
| Pino 13 | VREF+ — ADC voltage reference positive |
| Pino 14 | VREF- — ADC voltage reference negative |
| Pino 15 | RA0 — PORT A I/O / AN0 |
| Pino 16 | RA1 — PORT A I/O / AN1 |
| Pino 17 | RA2 — PORT A I/O / AN2 |
| Pino 18 | RA3 — PORT A I/O / AN3 |
| Pino 19 | RA4 — PORT A I/O / AN4 / T0CKI |
| Pino 20 | RA5 — PORT A I/O / AN5 / SS1 |
| Pino 21 | RA6 — PORT A I/O / OSC2 |
| Pino 22 | RA7 — PORT A I/O / OSC1 |
| Pino 23 | VSS — Ground reference |
| Pino 24 | VDD — Positive supply voltage (1.8V-5.5V) |
| Pino 25 | RB0 — PORT B I/O / INT0 / AN12 |
| Pino 26 | RB1 — PORT B I/O / INT1 / AN10 |
| Pino 27 | RB2 — PORT B I/O / INT2 / AN8 |
| Pino 28 | RB3 — PORT B I/O / INT3 / AN9 |
| Pino 29 | RB4 — PORT B I/O / KBI0 / AN11 |
| Pino 30 | RB5 — PORT B I/O / KBI1 / AN13 |
| Pino 31 | RB6 — PORT B I/O / KBI2 / PGC (ICSP clock) |
| Pino 32 | RB7 — PORT B I/O / KBI3 / PGD (ICSP data) |
| Pino 33 | RC0 — PORT C I/O / SOSCO / T1CKI |
| Pino 34 | RC1 — PORT C I/O / SOSCI / CCP2 |
| Pino 35 | RC2 — PORT C I/O / CCP1 |
| Pino 36 | RC3 — PORT C I/O / SCL1 / SCK1 |
| Pino 37 | RC4 — PORT C I/O / SDA1 / SDI1 |
| Pino 38 | RC5 — PORT C I/O / SDO1 |
| Pino 39 | RC6 — PORT C I/O / TX1 / CK1 |
| Pino 40 | RC7 — PORT C I/O / RX1 / DT1 |
| Pino 41 | VSS — Ground reference |
| Pino 42 | VDD — Positive supply voltage (1.8V-5.5V) |
| Pino 43 | RD0 — PORT D I/O / PSP0 |
| Pino 44 | RD1 — PORT D I/O / PSP1 |
| Pino 45 | RD2 — PORT D I/O / PSP2 |
| Pino 46 | RD3 — PORT D I/O / PSP3 |
| Pino 47 | RD4 — PORT D I/O / PSP4 / SDO2 |
| Pino 48 | RD5 — PORT D I/O / PSP5 / SDI2 / SDA2 |
| Pino 49 | RD6 — PORT D I/O / PSP6 / SCK2 / SCL2 |
| Pino 50 | RD7 — PORT D I/O / PSP7 / SS2 |
| Pino 51 | VSS — Ground reference |
| Pino 52 | VDD — Positive supply voltage (1.8V-5.5V) |
| Pino 53 | RE0 — PORT E I/O / RD / AN5 |
| Pino 54 | RE1 — PORT E I/O / WR / AN6 |
| Pino 55 | RE2 — PORT E I/O / CS / AN7 |
| Pino 56 | RE3 — PORT E I/O |
| Pino 57 | RE4 — PORT E I/O |
| Pino 58 | RE5 — PORT E I/O |
| Pino 59 | RE6 — PORT E I/O |
| Pino 60 | RE7 — PORT E I/O |
| Pino 61 | VSS — Ground reference |
| Pino 62 | VDD — Positive supply voltage (1.8V-5.5V) |
| Pino 63 | RF0 — PORT F I/O / AN16 |
| Pino 64 | RF1 — PORT F I/O / AN6 / C2OUT |
| Pino 65 | RF2 — PORT F I/O / AN7 / C1OUT |
| Pino 66 | RF3 — PORT F I/O / AN8 |
| Pino 67 | RF4 — PORT F I/O / AN9 |
| Pino 68 | RF5 — PORT F I/O / AN10 / C2IN- |
| Pino 69 | RF6 — PORT F I/O / AN11 / C2IN+ |
| Pino 70 | RF7 — PORT F I/O / AN5 / SS1 |
| Pino 71 | VSS — Ground reference |
| Pino 72 | VDD — Positive supply voltage (1.8V-5.5V) |
| Pino 73 | RG0 — PORT G I/O / CCP3 |
| Pino 74 | RG1 — PORT G I/O / TX2 / CK2 |
| Pino 75 | RG2 — PORT G I/O / RX2 / DT2 |
| Pino 76 | RG3 — PORT G I/O / CCP4 |
| Pino 77 | RG4 — PORT G I/O / CCP5 / T5CKI |
| Pino 78 | RG5 — PORT G I/O |
| Pino 79 | RJ0 — PORT J I/O |
| Pino 80 | MCLR — Master Clear reset input (active low) |
Aplicações típicas
PIC18F85K22T-I/PT é adequado para 6 aplicaçãos: Automotive Body Control Modules, Capacitive Touch HMIs and Keypads, Industrial Sensor Hubs, USB Peripherals and HID Devices, Battery-Powered IoT Edge Nodes, HVAC Climate Control Panels.
Automotive Body Control Modules
The PIC18F85K22T-I/PT serves automotive body controllers with its nanoWatt XLP power modes, 32KB Flash, and 12-bit ADC supporting 16 channels for sensor aggregation. Its 1.8V to 5.5V operating range tolerates load-dump transients when paired with appropriate TVS protection, while the CTMU enables capacitive seat-occupancy and door-handle touch sensors. For AEC-Q100 qualified deployments, swap to the PIC18F85K22-E/PT drop-in variant in the same 80-pin TQFP footprint for -40C to +125C operation.
Recomendado
Capacitive Touch HMIs and Keypads
The PIC18F85K22T-I/PT's integrated Charge Time Measurement Unit (CTMU) simplifies capacitive touch button, slider, and proximity-sensor designs, eliminating the need for an external touch controller. With 32KB Flash for touch firmware and the 64MHz core scanning up to 32 touch electrodes in <2ms, the part replaces mechanical keypads in sealed HMI panels for appliances and industrial controls. The nanoWatt XLP sleep mode drops current below 100nA, supporting battery-backed user interfaces.
Recomendado
Industrial Sensor Hubs
The PIC18F85K22T-I/PT aggregates multiple analog and digital sensors via its 12-bit ADC (up to 16 channels), EUSART, I2C, and SPI interfaces, making it ideal for industrial 4-20mA and Modbus sensor hubs. The 64MHz core handles floating-point sensor calculations and protocol framing while the 1.8V-5.5V range tolerates 24V industrial rails after regulation. The 80-pin TQFP exposes 69 I/O pins for discrete control outputs and indicator LEDs in DIN-rail mounted controllers.
Recomendado
USB Peripherals and HID Devices
The PIC18F85K22T-I/PT integrates a full-speed USB 2.0 peripheral controller with on-chip transceiver and dedicated PLL, enabling HID-class devices, CDC virtual COM ports, and custom USB peripherals without external transceiver ICs. The 32KB Flash accommodates USB stacks like Microchip's MLA, while 2KB RAM supports HID report buffers and bootloader code. Designers benefit from Microchip's free USB framework and the 80-pin TQFP exposing 69 I/O pins for keypad and LED matrix scanning.
Recomendado
Battery-Powered IoT Edge Nodes
The PIC18F85K22T-I/PT's nanoWatt XLP technology delivers sub-100nA sleep currents and <1uA RTCC wake modes, enabling coin-cell-powered IoT sensor nodes that operate for years on a single CR2032 battery. The 1.8V minimum supply voltage supports direct battery connection without boost converters, while the 12-bit ADC captures sensor data at microamp-level quiescent current. The CTMU enables ultra-low-power wake-on-touch for sealed battery enclosures in smart home and asset-tracking deployments.
Recomendado
HVAC Climate Control Panels
The PIC18F85K22T-I/PT drives HVAC control panels with its 69 I/O pins supporting multiple rotary encoders, LCD drivers, LED indicators, and relay outputs for fan/blower/valve control. The 12-bit ADC reads temperature and humidity sensors while PWM channels generate triac-firing pulses for heating element control. The 80-pin TQFP package provides sufficient peripheral count to consolidate thermostat, zone controller, and air-quality monitor into a single MCU, reducing BOM cost in white-goods appliances.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18F85K22T-I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18F87K22T-I/PT | PIC18F85K22-I/PT | PIC18F85K22-E/PT | PIC18F86K22T-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same |
| Flash Memory | 32 KB | 128 KB | 32 KB | 32 KB | 64 KB |
| RAM | 2 KB | 4 KB | 2 KB | 2 KB | 4 KB |
| Maximum CPU Speed | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended/Auto) | -40C to +85C (Industrial) |
| AEC-Q100 Qualified | No (Industrial grade) | No (Industrial grade) | No (Industrial grade) | Yes (AEC-Q100 qualified) | No (Industrial grade) |
| Packaging Format | Tape and Reel | Tape and Reel | Tray | Tray | Tape and Reel |
| Special Peripherals | nanoWatt XLP, CTMU, 12-bit ADC | nanoWatt XLP, CTMU, 12-bit ADC | nanoWatt XLP, CTMU, 12-bit ADC | nanoWatt XLP, CTMU, 12-bit ADC | nanoWatt XLP, CTMU, 12-bit ADC |
Principais diferenciais
- CTMU peripheral eliminates external touch controller IC (vs PIC18F85J50T-I/PT)
- AEC-Q100 qualified drop-in variant available (vs PIC18F85K22T-I/PT (this part))
- Flash upgrade path within same package (vs PIC18F86K22T-I/PT)
Notas de projeto
The PIC18F85K22T-I/PT supports multiple low-power modes including Sleep (CPU off, peripherals off, <100nA typical), Idle (CPU off, peripherals running, ~5uA), and Doze (CPU at reduced clock, peripherals full speed). For battery-powered designs, leverage the nanoWatt XLP Sleep mode with RTCC wake-up to achieve multi-year coin-cell battery life. Always tie unused I/O pins to defined logic levels (VDD or VSS) and disable unused peripherals via firmware to minimize quiescent current draw.
The 80-pin TQFP package has 0.5mm lead pitch requiring careful PCB layout. Place 0.1uF decoupling capacitors within 3mm of every VDD/VSS pair (the device has 4 VDD/VSS pairs at pins 10/9, 24/23, 42/41, 62/61, 72/71). Use a ground pour on the top layer stitched with multiple vias to a solid bottom ground plane. Keep analog (AVDD/AVSS/VREF+/VREF-) traces short and isolated from digital switching signals to preserve ADC accuracy; the 12-bit ADC achieves ~10 ENOB with proper layout.
Do not omit the MCLR pull-up resistor (typically 10kOhm to VDD) - without it, the device may experience spurious resets from noise or improper power-up. Ensure the ICSP programming pins (RB6/PGD and RB7/PGC) are accessible in the final PCB layout for in-circuit firmware updates. The CONFIG words must be programmed correctly to select the desired oscillator mode, watchdog timer state, and code protection - incorrect CONFIG values can lock the device or cause erratic behavior.
Informações de conformidade
RoHS compliant per Microchip product page. The 'I' grade part is Industrial -40C to +85C, NOT AEC-Q100 qualified - choose PIC18F85K22-E/PT for AEC-Q100 automotive applications. Halogen-free and lead-free per Microchip environmental compliance disclosures.
