PIC18F6622-I/PT - 8-Bit 40MHz 64KB Flash MCU, 70 I/O, TQFP-64 | Microchip
MPN: PIC18F6622-I/PT ✓ Hoạt độngPIC18F6622-I/PT Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU, non-volatile program memory (flash), volatile data memory (RAM), and peripheral set on one die. The PIC18F family sits in Microchip's enhanced mid-range hierarchy: PIC10/12/16 baseline -> PIC18 enhanced 8-bit -> PIC24/dsPIC 16-bit -> PIC32 32-bit. Within power management taxonomy, MCUs are classified as embedded controllers inside the broader semiconductor IC family. PIC18F6622-I/PT specifically integrates nanoWatt power-management modes, making it ideal for battery-powered or energy-harvesting designs where idle current dominates.
Key features include 70 I/O pins, 12 channels of 10-bit ADC, two CCP modules, one Enhanced CCP (ECCP), two MSSP (I2C/SPI), two Enhanced USART (LIN-capable), two analog comparators, and a 16-bit timer. It also provides a parallel slave port for external bus expansion and an ICD-friendly in-circuit debug interface. The 64-pin TQFP exposes the full peripheral set with no multiplexing compromises for industrial and consumer designs.
Architecturally, the PIC18F6622-I/PT uses a Harvard RISC core with 16-bit instructions, 8-bit data path, hardware multiply, and a 31-level deep hardware stack. The nanoWatt technology incorporates run, idle, and sleep modes with on-the-fly oscillator switching, supporting currents in the microamp range during sleep with wake-up on interrupt, watchdog, or external events. The flash program memory is self-programmable under firmware control, enabling in-field firmware updates without external programmers.
Typical applications include industrial control panels, HVAC and building automation gateways, automotive LIN sub-net nodes, sensor hubs with multi-serial bridging, USB-to-UART bridges using the parallel slave port, and consumer appliances requiring high pin count with low sleep current. The large RAM and dual synchronous/dual asynchronous serial ports make it well suited to multi-protocol bridging firmware.
When designing with this device, ensure decoupling with 100 nF ceramic capacitors close to each VDD/VSS pair, keep analog and digital grounds separated at the ADC reference, and route the 40 MHz crystal traces short and symmetric for EMI compliance. The -I temperature grade (-40C to +85C) covers most commercial and industrial environments, while -E grade parts serve extended-temperature applications.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC18F6622-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 PIC18F6622-I/PT (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Timers, Operating Temperature, Program Memory (Flash).
PIC18F6722-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F6622-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F6527-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F6627-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F6680-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F6622-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18 Enhanced 8-bit RISC |
| Program Memory (Flash) | 64 KB (32K x 16) |
| RAM | 4 KB |
| Data EEPROM | 1 KB |
| Maximum CPU Frequency | 40 MHz |
| Bề rộng đường dữ liệu | 8-bit |
| Operating Voltage (VDD) | 2.0 V to 5.5 V |
| I/O Pins | 70 |
| ADC | 10-bit, 12 channels |
| Timers | 16-bit timers and 8-bit timers (multiple) |
| Communication Interfaces | 2x MSSP (I2C/SPI), 2x EUSART (LIN-capable) |
| CCP / ECCP Modules | 2x CCP + 1x ECCP |
| Analog Comparators | 2 |
| Hộp | TQFP-64 (PT), 10x10 mm |
| Operating Temperature (I grade) | -40 C to +85 C |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F6622-I/PT
| Chân 1 | RG0 — General-purpose I/O / CCP3 |
| Chân 2 | RG1 — General-purpose I/O / TX2 |
| Chân 3 | RG2 — General-purpose I/O / RX2 |
| Chân 4 | RG3 — General-purpose I/O / CCP4 |
| Chân 5 | RG4 — General-purpose I/O / CCP5 |
| Chân 6 | MCLR — Master clear reset input (active low) |
| Chân 7 | OSC1 — Crystal/oscillator input |
| Chân 8 | OSC2 — Crystal/oscillator output |
| Chân 9 | RA0 — Analog input AN0 / CVref |
| Chân 10 | RA1 — Analog input AN1 |
| Chân 11 | RA2 — Analog input AN2 / Vref- |
| Chân 12 | RA3 — Analog input AN3 / Vref+ |
| Chân 13 | RA4 — Digital I/O / T0CKI |
| Chân 14 | RA5 — Digital I/O / AN4 / HLVDIN |
| Chân 15 | RA6 — Digital I/O / OSC1 alt |
| Chân 16 | RA7 — Digital I/O / OSC2 alt |
| Chân 17 | VSS — Ground |
| Chân 18 | VDD — Positive supply voltage |
| Chân 19 | RB0 — Digital I/O / INT0 / AN12 |
| Chân 20 | RB1 — Digital I/O / INT1 / AN10 |
| Chân 21 | RB2 — Digital I/O / INT2 / AN8 |
| Chân 22 | RB3 — Digital I/O / INT3 / AN9 / CCP2 |
| Chân 23 | RB4 — Digital I/O / AN11 |
| Chân 24 | RB5 — Digital I/O / AN13 / CCP3 |
| Chân 25 | RB6 — Digital I/O / PGC (ICD clock) |
| Chân 26 | RB7 — Digital I/O / PGD (ICD data) |
| Chân 27 | RC0 — Digital I/O / T1OSO / T13CKI |
| Chân 28 | RC1 — Digital I/O / T1OSI / CCP2 |
| Chân 29 | RC2 — Digital I/O / CCP1 |
| Chân 30 | RC3 — Digital I/O / SCL1 / SCK1 |
| Chân 31 | RC4 — Digital I/O / SDA1 / SDI1 |
| Chân 32 | RC5 — Digital I/O / SDO1 |
| Chân 33 | RC6 — Digital I/O / TX1 / CK1 |
| Chân 34 | RC7 — Digital I/O / RX1 / DT1 |
| Chân 35 | VSS — Ground |
| Chân 36 | VDD — Positive supply voltage |
| Chân 37 | RD0 — Digital I/O / PSP0 |
| Chân 38 | RD1 — Digital I/O / PSP1 |
| Chân 39 | RD2 — Digital I/O / PSP2 |
| Chân 40 | RD3 — Digital I/O / PSP3 |
| Chân 41 | RD4 — Digital I/O / PSP4 / SDO2 |
| Chân 42 | RD5 — Digital I/O / PSP5 / SDI2 / SDA2 |
| Chân 43 | RD6 — Digital I/O / PSP6 / SCK2 / SCL2 |
| Chân 44 | RD7 — Digital I/O / PSP7 / SS2 |
| Chân 45 | VSS — Ground |
| Chân 46 | VDD — Positive supply voltage |
| Chân 47 | RE0 — Digital I/O / AN5 / RD |
| Chân 48 | RE1 — Digital I/O / AN6 / WR |
| Chân 49 | RE2 — Digital I/O / AN7 / CS |
| Chân 50 | RE3 — Digital I/O / RD (alt) |
| Chân 51 | RE4 — Digital I/O |
| Chân 52 | RE5 — Digital I/O |
| Chân 53 | RE6 — Digital I/O |
| Chân 54 | RE7 — Digital I/O / CCP2 |
| Chân 55 | RF0 — Digital I/O / AN16 |
| Chân 56 | RF1 — Digital I/O / AN6 / C2OUT |
| Chân 57 | RF2 — Digital I/O / AN7 / C1OUT |
| Chân 58 | RF3 — Digital I/O / AN8 |
| Chân 59 | RF4 — Digital I/O / AN9 |
| Chân 60 | RF5 — Digital I/O / AN10 / C2IN- |
| Chân 61 | RF6 — Digital I/O / AN11 / C1IN- |
| Chân 62 | RF7 — Digital I/O / AN5 / SS1 |
| Chân 63 | VSS — Ground |
| Chân 64 | VDD — Positive supply voltage |
Ứng dụng tiêu biểu
PIC18F6622-I/PT phù hợp cho 6 Áp dụngs: Industrial Control Panels, HVAC and Building Automation Gateways, Automotive LIN Sub-Net Nodes, USB-to-UART Bridge with Parallel Slave Port, Multi-Sensor Hubs with Protocol Bridging, Consumer Appliance Controllers.
Industrial Control Panels
The PIC18F6622-I/PT is well suited to industrial control panels where 70 I/O pins drive keypad scanning, LED matrix displays, relay banks, and multiple sensor inputs. The 40 MHz CPU and 64 KB flash comfortably run Modbus RTU masters, PID control loops, and human-machine interface (HMI) state machines. Two EUSARTs allow simultaneous RS-485 master/slave bridging, while 12 ADC channels sample analog sensors without external muxes. The -40C to +85C industrial temperature range covers factory floor environments, and nanoWatt sleep modes cut power between operator interactions.
Được đề xuất
HVAC and Building Automation Gateways
The PIC18F6622-I/PT serves as a multi-protocol gateway in HVAC and building automation, bridging BACnet MS-TP, Modbus, and LIN sub-nets through its two EUSARTs and two MSSP peripherals. The 4 KB RAM buffers telemetry packets while 64 KB flash stores protocol stacks, scheduling logic, and OTA bootloader. nanoWatt sleep modes with interrupt wake-up let the gateway idle between sensor polls, cutting power consumption below 10 uA in standby. The wide 2.0-5.5 V VDD range accepts 24V-derived rails after regulation, and the 10-bit ADC reads thermistor/resistive sensor inputs directly.
Được đề xuất
Automotive LIN Sub-Net Nodes
The PIC18F6622-I/PT integrates LIN-capable Enhanced USART peripherals, making it suitable for automotive body-electronics LIN sub-net nodes controlling window lifters, mirror adjusters, seat controllers, and ambient lighting. The 70 I/O pins drive H-bridge drivers and LED PWM channels through the ECCP module, while the 12-channel 10-bit ADC reads position feedback and current sense. Per the Microchip datasheet, the LIN peripheral supports auto-baud detection and full LIN 1.3/2.0/2.1 compliance. Note that the I-grade temperature rating (-40C to +85C) suits cabin modules; under-hood applications should select the E-grade variant.
Được đề xuất
USB-to-UART Bridge with Parallel Slave Port
The PIC18F6622-I/PT exposes a parallel slave port (PSP) that, combined with an external USB-to-parallel chip like the MCP2210, creates a high-throughput USB-to-UART/I2C/SPI bridge for legacy industrial equipment. The 40 MHz CPU handles USB enumeration and protocol translation without bottlenecks, while 64 KB flash stores HID or CDC class descriptors plus custom command sets. The dual EUSART supports two independent UART channels simultaneously, useful for debugging two serial buses through a single USB port. The nanoWatt sleep mode enables USB suspend compliance with <2.5 mA device current.
Được đề xuất
Multi-Sensor Hubs with Protocol Bridging
The PIC18F6622-I/PT excels as a multi-sensor hub reading I2C sensors through MSSP, SPI devices through the second MSSP, and forwarding data over UART or back to a host MCU. The 4 KB RAM caches sensor fusion state, while the 12-channel 10-bit ADC monitors analog sensors in parallel. The 40 MHz CPU runs sensor fusion algorithms at 100 Hz while maintaining serial responsiveness. nanoWatt sleep modes with wake-on-interrupt let the hub idle between sensor reads, extending battery life in wireless sensor nodes.
Được đề xuất
Consumer Appliance Controllers
The PIC18F6622-I/PT drives consumer appliances such as washing machines, dishwashers, and coffee machines where 70 I/O pins interface with keypads, displays, motor drivers, and water level sensors. The ECCP module generates PWM for motor speed control, while the 12-channel ADC monitors temperature, turbidity, and load weight. The 64 KB flash stores appliance firmware with multi-language UI strings, and 4 KB RAM buffers display refresh and motor state. The wide 2.0-5.5 V VDD accepts regulated supplies from universal mains adapters, and nanoWatt modes drop standby power below energy-star limits.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F6622-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 | PIC18F6722-I/PT | PIC18F6622-E/PT | PIC18F6527-I/PT | PIC18F6627-I/PT | PIC18F6680-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (PT) 10x10 mm | TQFP-64 (PT) - same | TQFP-64 (PT) - same | TQFP-64 (PT) - same | TQFP-64 (PT) - same | TQFP-64 (PT) - same |
| Program Flash | 64 KB | 128 KB | 64 KB | 48 KB | 96 KB | 64 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| Maximum CPU Frequency | 40 MHz | 40 MHz | 25 MHz | 40 MHz | 40 MHz | 40 MHz |
| 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 | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Temperature Grade | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| I/O Pins | 70 | 70 | 70 | 70 | 70 | 70 |
| CAN Module | No | No | No | No | No | Yes |
| Price (qty-1, USD) | $8.20 | $9.50 | $8.95 | $7.40 | $8.80 | $9.10 |
Bảo phân biệt quan trọng
- Dual MSSP + dual EUSART (LIN-capable) for four serial ports (vsPIC18F6527-I/PT)
- Larger flash headroom at the same price tier (vsPIC18F6527-I/PT)
- Industrial temperature grade with extended flash variants available (vsPIC18F6722-I/PT)
Ghi chú thiết kế
The PIC18F6622-I/PT operates from 2.0 V to 5.5 V at up to 40 MHz. Place a 100 nF decoupling capacitor within 5 mm of each VDD/VSS pair (pins 18/17, 36/35, 46/45, 64/63); add a bulk 10 uF tantalum or ceramic near the IC. For battery-powered designs, the nanoWatt sleep mode drops current below 1 uA typical with RTCC running - per the Microchip datasheet, use the on-the-fly oscillator switch to wake on interrupt without external circuitry.
Route the 40 MHz crystal traces (OSC1/OSC2, pins 7-8) within 5 mm of the MCU, symmetric and short with a ground guard ring. Keep analog traces (RA0-RA7, RF0-RF7, RE0-RE7) away from digital switching signals to minimize ADC crosstalk; if using the 12-channel 10-bit ADC for sub-LSB precision, place a 100 nF cap on Vref+ and use a separate analog ground island joined at one point. The PGC/PGD ICD pins (RB6/RB7) must be accessible for in-circuit debugging - do not place series resistors above 100 ohm.
Do not drive MCLR (pin 6) directly to VDD without a 10 kohm pull-up; a noisy reset line causes spurious restarts. When using the parallel slave port (RD0-RD7, RE0-RE2), the PSP control lines must be configured as digital I/O - leaving them as analog inputs disables PSP operation. The I grade temperature rating (-40C to +85C) is industrial range; do not specify this part for under-hood automotive without the E grade variant. Always configure unused I/O as outputs low to minimize sleep current.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page; lead-free and halogen-free per datasheet. Not AEC-Q100 qualified; for automotive applications requiring AEC-Q100, consult Microchip for the PIC18F6622-I/PT automotive-grade equivalent. The I grade temperature range (-40C to +85C) covers industrial environments; select E grade parts for extended-temperature designs.