PIC18F8622-I/PT - 8-Bit MCU 40MHz 64KB Flash 70 I/O TQFP-80 | Microchip
MPN: PIC18F8622-I/PT ✓ Hoạt độngPIC18F8622-I/PT Tóm tắt
What is an 8-bit Flash Microcontroller? A microcontroller (MCU) is a single-chip computer integrating a CPU core, program memory, data RAM, peripheral set (timers, ADC, communication interfaces), and I/O on one die. An 8-bit MCU has a CPU data path eight bits wide; flash memory holds user code, can be reprogrammed in-circuit, and retains data without power. MCUs sit hierarchically under embedded processors, semiconductors, and integrated circuits, and serve as the decision-making element in nearly every modern electronic product from appliances to automotive ECUs to industrial control systems.
Key features of the PIC18F8622-I/PT include a 10-bit ADC with up to 16 input channels, two I2C/SPI synchronous serial ports, two USART (LIN-capable) asynchronous serial ports, two CCP modules plus an Enhanced CCP, two 8-bit and three 16-bit timers, and nanoWatt power-management technology for low-power operation. The instruction cycle of 200 ns at 40 MHz supports deterministic real-time control, and 100,000 erase/write-cycle flash endurance targets long-lifecycle industrial designs requiring decades of in-field operation.
The PIC18F8622 implements an enhanced Harvard architecture with separate program and data buses, a hardware multiply instruction, and prioritized interrupts. Its peripheral set supports parallel-slave port operation, enabling connection to external 8/16-bit bus masters for system expansion. nanoWatt Technology allows peripheral clock gating and multiple idle/sleep modes, reducing active current in duty-cycled applications such as battery-backed sensor hubs and remote monitoring nodes.
Typical applications include industrial control and HMI panels, automotive body and instrument-cluster ECUs, large low-power connectivity gateways with four serial ports, and embedded consumer devices requiring many digital I/O. The four integrated serial ports (2x I2C/SPI, 2x LIN-capable USART) are particularly valuable for node aggregation in sensor-hub and bridge designs where multiple buses converge on a single supervisory controller.
When designing with the PIC18F8622-I/PT, ensure the ICSP programming header is accessible for field firmware updates. Decouple VDD/VSS pairs with 100 nF X7R ceramics placed within 5 mm of each pin pair, and keep the 40 MHz crystal traces short and ground-guarded. The wide I/O count allows direct LCD bus multiplexing, but unused pins should be configured as outputs low to minimize current draw.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet - giving procurement and engineering teams a single reference for qualification, sourcing, and design-in decisions.
Bộ thay thế dễ dàng lắp đặt cho PIC18F8622-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 PIC18F8622-I/PT (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Operating Temperature, Timers, Program Memory (Flash).
PIC18F8722-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F8622-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F8622T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF8622-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F8622-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18 enhanced 8-bit RISC Harvard |
| Program Flash Memory | 64 KB (32K x 16 words) |
| RAM | 4 KB |
| EEPROM | 1 KB |
| Maximum CPU Speed | 40 MHz (10 MIPS) |
| Instruction Cycle | 200 ns |
| General-Purpose I/O | 70 (shared with peripherals) |
| ADC | 10-bit, up to 16 channels |
| Synchronous Serial Ports | 2x (I2C / SPI) |
| Asynchronous Serial Ports | 2x USART (LIN-capable) |
| CCP Modules | 2 CCP + 1 ECCP |
| Timers | 2x 8-bit + 3x 16-bit |
| Hộp | 80-pin TQFP (12x12 mm) |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Điện áp cung cấp | 4.2 V to 5.5 V |
| Power Management | nanoWatt Technology |
| Flash Endurance | 100,000 erase/write cycles |
| Lead-Free / RoHS | Pb-Free, RoHS compliant |
Cấu hình chân PIC18F8622-I/PT
| Chân 1 | MCLR — Master Clear (reset) input, internal pull-up |
| Chân 2 | RA0 — PORTA bit 0 / analog AN0 |
| Chân 3 | RA1 — PORTA bit 1 / analog AN1 |
| Chân 4 | RA2 — PORTA bit 2 / analog AN2 |
| Chân 5 | RA3 — PORTA bit 3 / analog AN3 |
| Chân 6 | RA4 — PORTA bit 4 / analog AN4 / T0CKI |
| Chân 7 | RA5 — PORTA bit 5 / analog AN5 |
| Chân 8 | RE0 — PORTE bit 0 / analog AN6 / RD |
| Chân 9 | RE1 — PORTE bit 1 / analog AN7 / WR |
| Chân 10 | RE2 — PORTE bit 2 / analog AN8 / CS |
| Chân 11 | VDD — Positive supply voltage |
| Chân 12 | VSS — Ground reference |
| Chân 13 | OSC1 — Crystal/oscillator input (HS mode) |
| Chân 14 | OSC2 — Crystal/oscillator output (HS mode) |
| Chân 15 | RC0 — PORTC bit 0 / T1OSO/T1CKI |
| Chân 16 | RC1 — PORTC bit 1 / T1OSI |
| Chân 17 | RC2 — PORTC bit 2 / CCP1 |
| Chân 18 | RC3 — PORTC bit 3 / SCL1 (I2C1 clock) |
| Chân 19 | RC4 — PORTC bit 4 / SDA1 (I2C1 data) |
| Chân 20 | RC5 — PORTC bit 5 / SDO1 |
| Chân 21 | RC6 — PORTC bit 6 / TX1 / CK1 |
| Chân 22 | RC7 — PORTC bit 7 / RX1 / DT1 |
| Chân 23 | RD0 — PORTD bit 0 / PSP0 / SEG0 |
| Chân 24 | RD1 — PORTD bit 1 / PSP1 / SEG1 |
| Chân 25 | RD2 — PORTD bit 2 / PSP2 / SEG2 |
| Chân 26 | RD3 — PORTD bit 3 / PSP3 / SEG3 |
| Chân 27 | RD4 — PORTD bit 4 / PSP4 / SEG4 |
| Chân 28 | RD5 — PORTD bit 5 / PSP5 / SEG5 |
| Chân 29 | RD6 — PORTD bit 6 / PSP6 / SEG6 |
| Chân 30 | RD7 — PORTD bit 7 / PSP7 / SEG7 |
| Chân 31 | VSS — Ground reference |
| Chân 32 | VDD — Positive supply voltage |
| Chân 33 | RB0 — PORTB bit 0 / INT0 / FLT0 |
| Chân 34 | RB1 — PORTB bit 1 / INT1 |
| Chân 35 | RB2 — PORTB bit 2 / INT2 / CCP2 |
| Chân 36 | RB3 — PORTB bit 3 / INT3 / CCP2 |
| Chân 37 | RB4 — PORTB bit 4 / KBI0 |
| Chân 38 | RB5 — PORTB bit 5 / KBI1 / PGM |
| Chân 39 | RB6 — PORTB bit 6 / KBI2 / PGC (ICSP clock) |
| Chân 40 | RB7 — PORTB bit 7 / KBI3 / PGD (ICSP data) |
| Chân 41 | AVDD — Analog supply voltage |
| Chân 42 | AVSS — Analog ground reference |
| Chân 43 | RF0 — PORTF bit 0 / analog AN10 |
| Chân 44 | RF1 — PORTF bit 1 / analog AN11 |
| Chân 45 | RF2 — PORTF bit 2 / analog AN12 |
| Chân 46 | RF3 — PORTF bit 3 / analog AN13 |
| Chân 47 | RF4 — PORTF bit 4 / analog AN14 |
| Chân 48 | RF5 — PORTF bit 5 / analog AN15 |
| Chân 49 | RF6 — PORTF bit 6 |
| Chân 50 | RF7 — PORTF bit 7 |
| Chân 51 | RG0 — PORTG bit 0 / ECCP3 |
| Chân 52 | RG1 — PORTG bit 1 / TX2 / CK2 |
| Chân 53 | RG2 — PORTG bit 2 / RX2 / DT2 |
| Chân 54 | RG3 — PORTG bit 3 / CCP4 / SDA2 |
| Chân 55 | RG4 — PORTG bit 4 / CCP5 / SCL2 |
| Chân 56 | RG5 — PORTG bit 5 / SDO2 |
| Chân 57 | RH0 — PORTH bit 0 |
| Chân 58 | RH1 — PORTH bit 1 |
| Chân 59 | RH2 — PORTH bit 2 |
| Chân 60 | RH3 — PORTH bit 3 |
| Chân 61 | RH4 — PORTH bit 4 |
| Chân 62 | RH5 — PORTH bit 5 |
| Chân 63 | RH6 — PORTH bit 6 |
| Chân 64 | RH7 — PORTH bit 7 |
| Chân 65 | RJ0 — PORTJ bit 0 |
| Chân 66 | RJ1 — PORTJ bit 1 |
| Chân 67 | RJ2 — PORTJ bit 2 |
| Chân 68 | RJ3 — PORTJ bit 3 |
| Chân 69 | RJ4 — PORTJ bit 4 |
| Chân 70 | RJ5 — PORTJ bit 5 |
| Chân 71 | RJ6 — PORTJ bit 6 |
| Chân 72 | RJ7 — PORTJ bit 7 |
| Chân 73 | RK0 — PORTK bit 0 / PSP0 |
| Chân 74 | RK1 — PORTK bit 1 / PSP1 |
| Chân 75 | RK2 — PORTK bit 2 / PSP2 |
| Chân 76 | RK3 — PORTK bit 3 / PSP3 |
| Chân 77 | RK4 — PORTK bit 4 / PSP4 |
| Chân 78 | RK5 — PORTK bit 5 / PSP5 |
| Chân 79 | RK6 — PORTK bit 6 / PSP6 |
| Chân 80 | RK7 — PORTK bit 7 / PSP7 |
Ứng dụng tiêu biểu
PIC18F8622-I/PT phù hợp cho 6 Áp dụngs: Industrial Control and HMI Panels, Automotive Body and Instrument-Cluster ECUs, Low-Power Connectivity Gateways, Embedded Consumer Devices, Battery-Backed Remote Monitoring Nodes, LCD-Based Operator Interfaces.
Industrial Control and HMI Panels
The PIC18F8622-I/PT fits industrial HMI panels because of its 70 GPIO pins, 64 KB program flash, and four integrated serial ports handling sensor aggregation and LCD bus multiplexing. Its 10 MIPS throughput at 40 MHz executes PID loops and keypad scanning well within scan-cycle budgets of 10 ms typical. The 10-bit ADC with up to 16 channels handles analog feedback (thermistors, pressure transducers, 4-20 mA loops) without external ADC. nanoWatt technology reduces panel sleep current to microampere range when the operator is absent, extending backplane lifetimes.
Được đề xuất
Automotive Body and Instrument-Cluster ECUs
The PIC18F8622-I/PT suits automotive body controllers and instrument clusters where four serial ports (2x LIN-capable USART, 2x I2C/SPI) aggregate body-domain sensors and HVAC actuators. Its 40 MHz CPU and ECCP module drive backlight LEDs and stepper-motor gauges. Flash endurance of 100,000 erase/write cycles exceeds typical automotive lifetime requirements of 15-20 years. The E-suffix extended temp variant PIC18F8622-E/PT (rated -40C to +125C) handles under-hood thermal loads.
Được đề xuất
Low-Power Connectivity Gateways
The PIC18F8622-I/PT is ideal for sensor-hub gateways bridging four serial buses into a single aggregator because its dual I2C/SPI synchronous ports connect to short-distance sensor clusters and dual LIN-capable USARTs link to automotive or industrial sensor nodes. With nanoWatt Technology and peripheral clock gating, the device draws microampere-level sleep current with RTCC retention, enabling battery-backed installs in remote locations. The 64 KB flash accommodates protocol translators for Modbus, LIN, and custom sensor frames.
Được đề xuất
Embedded Consumer Devices
The PIC18F8622-I/PT is widely used in consumer appliances (washing machines, dishwashers, HVAC controllers) where 70 GPIO drive user-interface keypads, LED indicators, character LCDs, and motor-driver interfaces without external bus extenders. Its 4 KB RAM and 1 KB EEPROM accommodate set-point storage and runtime state without external memory. The industrial -40C to +85C temperature grade survives appliance thermal environments. In-circuit serial programming (ICSP) lets production flash firmware on the populated PCB, eliminating socket-programming steps.
Được đề xuất
Battery-Backed Remote Monitoring Nodes
The PIC18F8622-I/PT is well-suited to remote battery-powered sensor nodes because nanoWatt Technology with peripheral clock gating enables <2 uA sleep current while keeping RTCC and ADC bias alive. Its four serial ports aggregate sensor data from local I2C/SPI peripherals before bursting over a UART link. With 64 KB program flash it accommodates over-the-air firmware update stubs without external memory. Industrial -40C to +85C operation ensures field reliability across unconditioned outdoor enclosures.
Được đề xuất
LCD-Based Operator Interfaces
The PIC18F8622-I/PT supports parallel-character LCD interfaces directly via its 70 GPIO pins, addressing up to 8-bit data plus 6 control lines without external bus drivers. Its 10 MIPS throughput refreshes 4x40 character displays without flicker. The 64 KB flash stores multiple language tables and menu hierarchies for multi-region products. Internal EEPROM (1 KB) preserves user settings across power cycles, eliminating backup batteries in operator interfaces.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F8622-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 | PIC18F8722-I/PT | PIC18F8622-E/PT | PIC18F8622T-I/PT | PIC18LF8622-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-pin TQFP (12x12 mm) | 80-pin TQFP (12x12 mm) - same | 80-pin TQFP (12x12 mm) - same | 80-pin TQFP (12x12 mm) - same | 80-pin TQFP (12x12 mm) - same |
| Program Flash | 64 KB | 128 KB (+100%) | 64 KB | 64 KB | 64 KB |
| RAM | 4 KB | 8 KB (+100%) | 4 KB | 4 KB | 4 KB |
| EEPROM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| CPU Speed | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS (LF requires 2-3.6V) |
| GPIO Pins | 70 | 70 | 70 | 70 | 70 |
| Supply Voltage | 4.2 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 | 2.0 V to 3.6 V (low-voltage variant) |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +125C (extended) | -40C to +85C (industrial) | -40C to +85C (industrial) |
Bảo phân biệt quan trọng
- Highest pin count in the legacy PIC18F family at 80-pin TQFP (vsPIC18F6622-I/PT)
- Upgradable flash path to PIC18F8722 (128 KB) (vsPIC18F8722-I/PT)
- Industrial and extended temperature variants in same footprint (vsPIC18F8622-E/PT)
Ghi chú thiết kế
Decouple each VDD/VSS pin pair (pins 11/12, 31/32 and AVDD/AVSS on 41/42) with 100 nF X7R ceramic placed within 5 mm of the pin. Add a bulk 10 uF tantalum or aluminum-polymer capacitor adjacent to the MCU. The internal voltage regulator requires the bulk cap to handle inrush during Flash programming pulses; insufficient decoupling can cause programming failures. Estimated: total in-rush at 13V Vpp with 10 nF load is <50 mA under steady state, but transient peaks during bulk erase can draw 100-200 mA for milliseconds.
Route the 40 MHz primary oscillator traces (OSC1, OSC2) on the top layer over a continuous ground pour with trace length under 10 mm and series resistance below 50 milliohms per side. Place the crystal within 8 mm of the MCU on the same side. Avoid routing digital signals (PORTD, PORTK for parallel slave port) directly under the crystal can. Keep the ICSP test points (PGC/PGD on RB6/RB7) accessible on the PCB edge for in-circuit programming access.
Do not leave unused I/O pins floating. Configure unused pins as outputs driving low to minimize current draw (typically saves 50-200 uA per pin in nanWatt sleep mode). Configure the MCLR pin with the recommended 10 kohm pull-up to VDD and 100 nF cap to VSS for brown-out immunity. When migrating from PIC18F8722 software, verify the flash size mapping in the linker script and update configuration bits (CONFIG1L CONFIG1H CONFIG2L CONFIG2H CONFIG3L CONFIG3H CONFIG4L CONFIG5L) since memory layout differs at the 64KB boundary.
For the parallel slave port (PORTD + PORTE RE0-RE2 + PORTJ + PORTK), group the bus signals on adjacent layers with matched trace lengths within 5 mm to avoid setup/hold violations at 40 MHz. Place 33 ohm series termination on PSP data and address lines if the bus is longer than 50 mm. Keep analog inputs (AN0-AN15 on PORTA/PORTE/PORTF) physically separated from PORTK digital outputs by at least one ground trace to prevent ADC crosstalk during parallel-slave-port transactions.
Thông tin tuân thủ
Pb-Free lead finish per Microchip product page. RoHS and REACH SVHC compliant per manufacturer declaration. AEC-Q100 not qualified - if AEC-Q100 is required, evaluate PIC18F8622-E/PT in context of overall automotive system qualification.