PIC18F8622-I/PT - 8-Bit MCU 40MHz 64KB Flash 70 I/O TQFP-80 | Microchip
MPN: PIC18F8622-I/PT ✓ פעילPIC18F8622-I/PT סקירה
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.
חלופות תחליף ישיר עבור PIC18F8622-I/PT — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC18F8622-I/PT (אותו גורם צורה וטביעת רגל) — שונים ב Package, Core Architecture, Operating Temperature, Timers, Program Memory (Flash).
PIC18F8722-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F8622-E/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F8622T-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18LF8622-I/PT
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC18F8622-I/PT דירוגים מרביים ומאפיינים חשמליים
| 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 |
| מארז | 80-pin TQFP (12x12 mm) |
| טמפרטורת פעולה | -40C to +85C (industrial) |
| מתח אספקה | 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 |
תצורת פינים של PIC18F8622-I/PT
| פין 1 | MCLR — Master Clear (reset) input, internal pull-up |
| פין 2 | RA0 — PORTA bit 0 / analog AN0 |
| פין 3 | RA1 — PORTA bit 1 / analog AN1 |
| פין 4 | RA2 — PORTA bit 2 / analog AN2 |
| פין 5 | RA3 — PORTA bit 3 / analog AN3 |
| פין 6 | RA4 — PORTA bit 4 / analog AN4 / T0CKI |
| פין 7 | RA5 — PORTA bit 5 / analog AN5 |
| פין 8 | RE0 — PORTE bit 0 / analog AN6 / RD |
| פין 9 | RE1 — PORTE bit 1 / analog AN7 / WR |
| פין 10 | RE2 — PORTE bit 2 / analog AN8 / CS |
| פין 11 | VDD — Positive supply voltage |
| פין 12 | VSS — Ground reference |
| פין 13 | OSC1 — Crystal/oscillator input (HS mode) |
| פין 14 | OSC2 — Crystal/oscillator output (HS mode) |
| פין 15 | RC0 — PORTC bit 0 / T1OSO/T1CKI |
| פין 16 | RC1 — PORTC bit 1 / T1OSI |
| פין 17 | RC2 — PORTC bit 2 / CCP1 |
| פין 18 | RC3 — PORTC bit 3 / SCL1 (I2C1 clock) |
| פין 19 | RC4 — PORTC bit 4 / SDA1 (I2C1 data) |
| פין 20 | RC5 — PORTC bit 5 / SDO1 |
| פין 21 | RC6 — PORTC bit 6 / TX1 / CK1 |
| פין 22 | RC7 — PORTC bit 7 / RX1 / DT1 |
| פין 23 | RD0 — PORTD bit 0 / PSP0 / SEG0 |
| פין 24 | RD1 — PORTD bit 1 / PSP1 / SEG1 |
| פין 25 | RD2 — PORTD bit 2 / PSP2 / SEG2 |
| פין 26 | RD3 — PORTD bit 3 / PSP3 / SEG3 |
| פין 27 | RD4 — PORTD bit 4 / PSP4 / SEG4 |
| פין 28 | RD5 — PORTD bit 5 / PSP5 / SEG5 |
| פין 29 | RD6 — PORTD bit 6 / PSP6 / SEG6 |
| פין 30 | RD7 — PORTD bit 7 / PSP7 / SEG7 |
| פין 31 | VSS — Ground reference |
| פין 32 | VDD — Positive supply voltage |
| פין 33 | RB0 — PORTB bit 0 / INT0 / FLT0 |
| פין 34 | RB1 — PORTB bit 1 / INT1 |
| פין 35 | RB2 — PORTB bit 2 / INT2 / CCP2 |
| פין 36 | RB3 — PORTB bit 3 / INT3 / CCP2 |
| פין 37 | RB4 — PORTB bit 4 / KBI0 |
| פין 38 | RB5 — PORTB bit 5 / KBI1 / PGM |
| פין 39 | RB6 — PORTB bit 6 / KBI2 / PGC (ICSP clock) |
| פין 40 | RB7 — PORTB bit 7 / KBI3 / PGD (ICSP data) |
| פין 41 | AVDD — Analog supply voltage |
| פין 42 | AVSS — Analog ground reference |
| פין 43 | RF0 — PORTF bit 0 / analog AN10 |
| פין 44 | RF1 — PORTF bit 1 / analog AN11 |
| פין 45 | RF2 — PORTF bit 2 / analog AN12 |
| פין 46 | RF3 — PORTF bit 3 / analog AN13 |
| פין 47 | RF4 — PORTF bit 4 / analog AN14 |
| פין 48 | RF5 — PORTF bit 5 / analog AN15 |
| פין 49 | RF6 — PORTF bit 6 |
| פין 50 | RF7 — PORTF bit 7 |
| פין 51 | RG0 — PORTG bit 0 / ECCP3 |
| פין 52 | RG1 — PORTG bit 1 / TX2 / CK2 |
| פין 53 | RG2 — PORTG bit 2 / RX2 / DT2 |
| פין 54 | RG3 — PORTG bit 3 / CCP4 / SDA2 |
| פין 55 | RG4 — PORTG bit 4 / CCP5 / SCL2 |
| פין 56 | RG5 — PORTG bit 5 / SDO2 |
| פין 57 | RH0 — PORTH bit 0 |
| פין 58 | RH1 — PORTH bit 1 |
| פין 59 | RH2 — PORTH bit 2 |
| פין 60 | RH3 — PORTH bit 3 |
| פין 61 | RH4 — PORTH bit 4 |
| פין 62 | RH5 — PORTH bit 5 |
| פין 63 | RH6 — PORTH bit 6 |
| פין 64 | RH7 — PORTH bit 7 |
| פין 65 | RJ0 — PORTJ bit 0 |
| פין 66 | RJ1 — PORTJ bit 1 |
| פין 67 | RJ2 — PORTJ bit 2 |
| פין 68 | RJ3 — PORTJ bit 3 |
| פין 69 | RJ4 — PORTJ bit 4 |
| פין 70 | RJ5 — PORTJ bit 5 |
| פין 71 | RJ6 — PORTJ bit 6 |
| פין 72 | RJ7 — PORTJ bit 7 |
| פין 73 | RK0 — PORTK bit 0 / PSP0 |
| פין 74 | RK1 — PORTK bit 1 / PSP1 |
| פין 75 | RK2 — PORTK bit 2 / PSP2 |
| פין 76 | RK3 — PORTK bit 3 / PSP3 |
| פין 77 | RK4 — PORTK bit 4 / PSP4 |
| פין 78 | RK5 — PORTK bit 5 / PSP5 |
| פין 79 | RK6 — PORTK bit 6 / PSP6 |
| פין 80 | RK7 — PORTK bit 7 / PSP7 |
יישומים טיפוסיים
PIC18F8622-I/PT מתאים עבור 6 יישוםs: 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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC18F8622-I/PT — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | 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) |
מבדילים עיקריים
- Highest pin count in the legacy PIC18F family at 80-pin TQFP (לעומתPIC18F6622-I/PT)
- Upgradable flash path to PIC18F8722 (128 KB) (לעומתPIC18F8722-I/PT)
- Industrial and extended temperature variants in same footprint (לעומתPIC18F8622-E/PT)
הערות תכנון
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.
מידע על תאימות
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.