PIC18F8622-I/PT - 8-Bit MCU 40MHz 64KB Flash 70 I/O TQFP-80 | Microchip
MPN： PIC18F8622-I/PT ✓ 啟用中PIC18F8622-I/PT 概覽
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.
直接替換替代品，適用於 PIC18F8622-I/PT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC18F8622-I/PT （相同外形與佔位） — 差異在於 Package, Core Architecture, Operating Temperature, Timers, Program Memory (Flash).
PIC18F8722-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC18F8622-E/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC18F8622T-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC18LF8622-I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
PIC18F8622-I/PT 最大額定值與電氣特性
| 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 |
| 封裝 | 80-pin TQFP (12x12 mm) |
| 工作溫度 | -40C to +85C (industrial) |
| 供應電壓 | 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 |
PIC18F8622-I/PT 腳位配置
| 腳位 1 | MCLR — Master Clear (reset) input, internal pull-up |
| 腳位 2 | RA0 — PORTA bit 0 / analog AN0 |
| 腳位 3 | RA1 — PORTA bit 1 / analog AN1 |
| 腳位 4 | RA2 — PORTA bit 2 / analog AN2 |
| 腳位 5 | RA3 — PORTA bit 3 / analog AN3 |
| 腳位 6 | RA4 — PORTA bit 4 / analog AN4 / T0CKI |
| 腳位 7 | RA5 — PORTA bit 5 / analog AN5 |
| 腳位 8 | RE0 — PORTE bit 0 / analog AN6 / RD |
| 腳位 9 | RE1 — PORTE bit 1 / analog AN7 / WR |
| 腳位 10 | RE2 — PORTE bit 2 / analog AN8 / CS |
| 腳位 11 | VDD — Positive supply voltage |
| 腳位 12 | VSS — Ground reference |
| 腳位 13 | OSC1 — Crystal/oscillator input (HS mode) |
| 腳位 14 | OSC2 — Crystal/oscillator output (HS mode) |
| 腳位 15 | RC0 — PORTC bit 0 / T1OSO/T1CKI |
| 腳位 16 | RC1 — PORTC bit 1 / T1OSI |
| 腳位 17 | RC2 — PORTC bit 2 / CCP1 |
| 腳位 18 | RC3 — PORTC bit 3 / SCL1 (I2C1 clock) |
| 腳位 19 | RC4 — PORTC bit 4 / SDA1 (I2C1 data) |
| 腳位 20 | RC5 — PORTC bit 5 / SDO1 |
| 腳位 21 | RC6 — PORTC bit 6 / TX1 / CK1 |
| 腳位 22 | RC7 — PORTC bit 7 / RX1 / DT1 |
| 腳位 23 | RD0 — PORTD bit 0 / PSP0 / SEG0 |
| 腳位 24 | RD1 — PORTD bit 1 / PSP1 / SEG1 |
| 腳位 25 | RD2 — PORTD bit 2 / PSP2 / SEG2 |
| 腳位 26 | RD3 — PORTD bit 3 / PSP3 / SEG3 |
| 腳位 27 | RD4 — PORTD bit 4 / PSP4 / SEG4 |
| 腳位 28 | RD5 — PORTD bit 5 / PSP5 / SEG5 |
| 腳位 29 | RD6 — PORTD bit 6 / PSP6 / SEG6 |
| 腳位 30 | RD7 — PORTD bit 7 / PSP7 / SEG7 |
| 腳位 31 | VSS — Ground reference |
| 腳位 32 | VDD — Positive supply voltage |
| 腳位 33 | RB0 — PORTB bit 0 / INT0 / FLT0 |
| 腳位 34 | RB1 — PORTB bit 1 / INT1 |
| 腳位 35 | RB2 — PORTB bit 2 / INT2 / CCP2 |
| 腳位 36 | RB3 — PORTB bit 3 / INT3 / CCP2 |
| 腳位 37 | RB4 — PORTB bit 4 / KBI0 |
| 腳位 38 | RB5 — PORTB bit 5 / KBI1 / PGM |
| 腳位 39 | RB6 — PORTB bit 6 / KBI2 / PGC (ICSP clock) |
| 腳位 40 | RB7 — PORTB bit 7 / KBI3 / PGD (ICSP data) |
| 腳位 41 | AVDD — Analog supply voltage |
| 腳位 42 | AVSS — Analog ground reference |
| 腳位 43 | RF0 — PORTF bit 0 / analog AN10 |
| 腳位 44 | RF1 — PORTF bit 1 / analog AN11 |
| 腳位 45 | RF2 — PORTF bit 2 / analog AN12 |
| 腳位 46 | RF3 — PORTF bit 3 / analog AN13 |
| 腳位 47 | RF4 — PORTF bit 4 / analog AN14 |
| 腳位 48 | RF5 — PORTF bit 5 / analog AN15 |
| 腳位 49 | RF6 — PORTF bit 6 |
| 腳位 50 | RF7 — PORTF bit 7 |
| 腳位 51 | RG0 — PORTG bit 0 / ECCP3 |
| 腳位 52 | RG1 — PORTG bit 1 / TX2 / CK2 |
| 腳位 53 | RG2 — PORTG bit 2 / RX2 / DT2 |
| 腳位 54 | RG3 — PORTG bit 3 / CCP4 / SDA2 |
| 腳位 55 | RG4 — PORTG bit 4 / CCP5 / SCL2 |
| 腳位 56 | RG5 — PORTG bit 5 / SDO2 |
| 腳位 57 | RH0 — PORTH bit 0 |
| 腳位 58 | RH1 — PORTH bit 1 |
| 腳位 59 | RH2 — PORTH bit 2 |
| 腳位 60 | RH3 — PORTH bit 3 |
| 腳位 61 | RH4 — PORTH bit 4 |
| 腳位 62 | RH5 — PORTH bit 5 |
| 腳位 63 | RH6 — PORTH bit 6 |
| 腳位 64 | RH7 — PORTH bit 7 |
| 腳位 65 | RJ0 — PORTJ bit 0 |
| 腳位 66 | RJ1 — PORTJ bit 1 |
| 腳位 67 | RJ2 — PORTJ bit 2 |
| 腳位 68 | RJ3 — PORTJ bit 3 |
| 腳位 69 | RJ4 — PORTJ bit 4 |
| 腳位 70 | RJ5 — PORTJ bit 5 |
| 腳位 71 | RJ6 — PORTJ bit 6 |
| 腳位 72 | RJ7 — PORTJ bit 7 |
| 腳位 73 | RK0 — PORTK bit 0 / PSP0 |
| 腳位 74 | RK1 — PORTK bit 1 / PSP1 |
| 腳位 75 | RK2 — PORTK bit 2 / PSP2 |
| 腳位 76 | RK3 — PORTK bit 3 / PSP3 |
| 腳位 77 | RK4 — PORTK bit 4 / PSP4 |
| 腳位 78 | RK5 — PORTK bit 5 / PSP5 |
| 腳位 79 | RK6 — PORTK bit 6 / PSP6 |
| 腳位 80 | RK7 — PORTK bit 7 / PSP7 |
典型應用
PIC18F8622-I/PT 適用於 6 應用s: 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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 PIC18F8622-I/PT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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) |
主要差異化特點
- Highest pin count in the legacy PIC18F family at 80-pin TQFP (對比PIC18F6622-I/PT)
- Upgradable flash path to PIC18F8722 (128 KB) (對比PIC18F8722-I/PT)
- Industrial and extended temperature variants in same footprint (對比PIC18F8622-E/PT)
設計說明
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.
合規資訊
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.