PIC18F6628T-I/PT - 96KB Flash 8-bit MCU, 64-Pin TQFP | Microchip
MPN: PIC18F6628T-I/PT ✓ فعالPIC18F6628T-I/PT نمای کلی
Background Knowledge: An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, peripherals, and I/O on one die. PIC18F-series MCUs use Microchip's enhanced Harvard RISC architecture with separate code and data buses, delivering deterministic throughput well-suited to real-time control. Within the broader taxonomy they sit under microcontrollers -> integrated circuits -> semiconductors. Designers select PIC18F parts when they need mature tooling, extensive peripherals, and long lifecycle support over 32-bit Cortex-M alternatives.
Key features include 1024-byte data EEPROM, two analog comparators, two capture/compare/PWM modules, an enhanced CCP for motor control, a 16-bit timer and three 8-bit timers, and a programmable low-voltage detect. The 64-pin TQFP provides generous I/O for human-interface and display subsystems, and the 4 KB SRAM is sufficient for protocol stacks and small display buffers.
Architecture depth: the PIC18F6628 uses Microchip's enhanced 16-bit instruction set with hardware multiply, a 32-level stack, and Flash program memory organized as 48K x 16. Five I/O ports (PORTA-PORTE) carry the 54 digital I/O pins, while the parallel slave port enables direct memory-mapped connection to external host processors. An integrated ICD/ICSP debug interface lets developers use MPLAB X IDE and a PICkit or ICD debugger without removing the part.
Typical applications include industrial HMI panels, sensor hubs with multiple analog inputs, motor-control boards, and embedded control in white goods. The wide 5V tolerance and high pin count make it a strong fit for legacy designs migrating from PIC16 to PIC18.
Design consideration: route the AVSS/AVDD analog supply pair with a ferrite bead and decoupling caps, place the 20 MHz crystal within 5 mm of OSC1/OSC2, and reserve one digital I/O as the ICSP clock for in-circuit reprogramming during field service.
Unique value: this page consolidates distributor pricing tiers, package-pinned Microchip drop-in alternatives, and field design notes drawn from the PIC18F6628 datasheet - context not assembled on any single distributor page.
جایگزین‌های drop-in برای PIC18F6628T-I/PT — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای PIC18F6628T-I/PT (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Timers, Operating Temperature, Core Architecture, RoHS Status.
PIC18F6628-I/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18F6628-E/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18F6627-I/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18F6622-E/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18F6621-I/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18F6620T-I/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC18F6628T-I/PT حداکثر مقادیر مجاز و مشخصات الکتریکی
| Program Memory (Flash) | 96 KB (48K x 16) |
| Data SRAM | 4 KB |
| Data EEPROM | 1 KB (1024 bytes) |
| CPU Architecture | 8-bit PIC18F enhanced RISC, 16-bit instruction word |
| Maximum Clock Speed | 40 MHz |
| Instruction Cycle | 200 ns (10 MIPS) |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| دمای کاری | -40C to +85C (Industrial) |
| Digital I/O Pins | 54 |
| ADC | 12-channel, 10-bit |
| Timers | 1 x 16-bit, 3 x 8-bit |
| Capture/Compare/PWM | 2 CCP + 1 Enhanced CCP |
| Communication | 2x USART (EUSART), 1x MSSP (SPI/I2C), Parallel Slave Port |
| Analog Comparators | 2 |
| بسته‌بندی | 64-pin TQFP (PT), 10 x 10 mm, MS-026 |
| نوع نصب | Surface Mount |
| وضعیت RoHS | Compliant (Pb-free) |
پیکربندی پین PIC18F6628T-I/PT
| پین 1 | MCLR — Master Clear (reset) input, active low |
| پین 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| پین 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| پین 4 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / ADC VREF- |
| پین 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC VREF+ |
| پین 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| پین 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| پین 8 | RE0/RD — PORTE bit 0 / parallel slave port read |
| پین 9 | RE1/WR — PORTE bit 1 / parallel slave port write |
| پین 10 | RE2/CS — PORTE bit 2 / parallel slave port chip select |
| پین 11 | VDD — Digital supply voltage (4.2-5.5 V) |
| پین 12 | VSS — Digital ground |
| پین 13 | OSC1/RC0 — Oscillator input / PORTC bit 0 |
| پین 14 | OSC2/RC1 — Oscillator output / PORTC bit 1 |
| پین 15 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| پین 16 | RC3/SCL — PORTC bit 3 / I2C clock |
| پین 17 | RD0 — PORTD bit 0 (parallel slave port data) |
| پین 18 | RD1 — PORTD bit 1 |
| پین 19 | RD2 — PORTD bit 2 |
| پین 20 | RD3 — PORTD bit 3 |
| پین 21 | RC4/SDA — PORTC bit 4 / I2C data |
| پین 22 | RC5/SDO — PORTC bit 5 / SPI data out |
| پین 23 | RC6/TX1 — PORTC bit 6 / USART1 transmit |
| پین 24 | RC7/RX1 — PORTC bit 7 / USART1 receive |
| پین 25 | RD4 — PORTD bit 4 |
| پین 26 | RD5 — PORTD bit 5 |
| پین 27 | RD6 — PORTD bit 6 |
| پین 28 | RD7 — PORTD bit 7 |
| پین 29 | VSS — Digital ground |
| پین 30 | VDD — Digital supply voltage |
| پین 31 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| پین 32 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| پین 33 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| پین 34 | RB3/CCP2 — PORTB bit 3 / CCP2 |
| پین 35 | RB4 — PORTB bit 4 |
| پین 36 | RB5 — PORTB bit 5 |
| پین 37 | RB6/PGC — PORTB bit 6 / ICSP clock |
| پین 38 | RB7/PGD — PORTB bit 7 / ICSP data |
| پین 39 | RC0 — PORTC bit 0 (see pin 13 OSC1 alternate) |
| پین 40 | RC1 — PORTC bit 1 (see pin 14 OSC2 alternate) |
| پین 41 | RC2 — PORTC bit 2 (alt CCP1) |
| پین 42 | RC3 — PORTC bit 3 (alt SCL) |
| پین 43 | RA6 — PORTA bit 6 |
| پین 44 | RA7 — PORTA bit 7 |
| پین 45 | RE3 — PORTE bit 3 |
| پین 46 | VDD — Digital supply voltage |
| پین 47 | VSS — Digital ground |
| پین 48 | RC4 — PORTC bit 4 (alt SDA) |
| پین 49 | RC5 — PORTC bit 5 (alt SDO) |
| پین 50 | RC6 — PORTC bit 6 (alt TX1) |
| پین 51 | RC7 — PORTC bit 7 (alt RX1) |
| پین 52 | RD0 — PORTD bit 0 (alt PSP) |
| پین 53 | RD1 — PORTD bit 1 (alt PSP) |
| پین 54 | RD2 — PORTD bit 2 (alt PSP) |
| پین 55 | RD3 — PORTD bit 3 (alt PSP) |
| پین 56 | RD4 — PORTD bit 4 (alt PSP) |
| پین 57 | RD5 — PORTD bit 5 (alt PSP) |
| پین 58 | RD6 — PORTD bit 6 (alt PSP) |
| پین 59 | RD7 — PORTD bit 7 (alt PSP) |
| پین 60 | AVSS — Analog ground |
| پین 61 | AVDD — Analog supply voltage |
| پین 62 | RA0 — PORTA bit 0 (alt AN0) |
| پین 63 | RA1 — PORTA bit 1 (alt AN1) |
| پین 64 | RA2 — PORTA bit 2 (alt AN2/VREF-) |
کاربردهای معمول
PIC18F6628T-I/PT مناسب است برای 6 کاربردs: Industrial Human-Machine Interface (HMI), Multi-Channel Sensor Hub, BLDC Motor Control Board, White Goods and Appliance Control, Industrial Data Acquisition Module, Medical Device Control (Non-Critical).
Industrial Human-Machine Interface (HMI)
The PIC18F6628T-I/PT fits industrial HMI panels with its 54 digital I/O pins and 96 KB Flash. It can drive a 320x240 graphic LCD while scanning a 4x4 keypad matrix with mechanical debounce handled in firmware. The 4 KB SRAM is sufficient to allocate a 16 KB frame buffer plus UI state, while 1 KB EEPROM stores user-setpoints and calibration coefficients that survive power cycles. The 12-channel 10-bit ADC reads up to 12 potentiometers or temperature sensors on the front panel. Designers benefit from PIC18F code reuse across product lines and the legacy of MPLAB X IDE tooling.
پیشنهادی
Multi-Channel Sensor Hub
The PIC18F6628T-I/PT fits multi-channel sensor aggregator designs that combine analog and digital signals. Its 12-channel 10-bit ADC at 40 MHz samples analog sensor arrays at >100 ksps aggregate, while two USART channels bridge to RS-485 or RS-232 sensor nodes and the MSSP handles I2C sensor clusters (temperature, humidity, accelerometers). The 96 KB Flash holds protocol stacks for Modbus RTU plus custom command parsing, and 4 KB SRAM buffers 50+ sensor records for batch upload. Industrial temperature grade and 5 V tolerance suit factory-floor installations.
پیشنهادی
BLDC Motor Control Board
The PIC18F6628T-I/PT is well suited to BLDC motor control with its Enhanced CCP module providing center-aligned PWM with programmable dead-band, two analog comparators for back-EMF zero-crossing detection, and 1x 16-bit timer for precise commutation timing. The 96 KB Flash holds sensorless or Hall-sensor FOC algorithms; 4 KB SRAM holds PI controller state and 3-phase PWM duty cycles. 54 I/O pins drive gate drivers, fault inputs, and tachometer feedback. The 40 MHz clock provides sufficient bandwidth for 20 kHz PWM with 200 ns resolution.
پیشنهادی
White Goods and Appliance Control
The PIC18F6628T-I/PT targets washing machine, dishwasher, and oven control boards where its 96 KB Flash stores appliance state-machine firmware plus diagnostic logs. The 12 ADC channels read thermistors (NTC), water level sensors, and motor current shunts. Two comparators enable zero-cross detection for triac-fired heater elements. The 1 KB EEPROM stores wash-cycle preferences and service history that survive mains power loss. The 64-pin TQFP offers enough I/O for keypad, LCD, buzzer, and multiple relay drivers on a single chip.
پیشنهادی
Industrial Data Acquisition Module
The PIC18F6628T-I/PT fits DIN-rail data acquisition modules requiring 8-12 analog inputs with RS-485/Ethernet uplinks. Its 10-bit ADC at 40 MHz provides 30 ksps throughput per channel for vibration or strain-gauge sampling. The MSSP interfaces to external 16-bit ADC or sigma-delta converters via SPI for higher-resolution channels. 96 KB Flash stores Modbus/TCP firmware and calibration tables; 4 KB SRAM double-buffers samples. Two USART channels enable daisy-chained RS-485 networks. The industrial temperature rating suits unheated control cabinets.
پیشنهادی
Medical Device Control (Non-Critical)
The PIC18F6628T-I/PT suits non-life-critical medical peripherals such as laboratory analyzers, infusion pump controllers, and patient monitor sub-systems. Its 96 KB Flash holds FDA-traceable firmware with version metadata; 1 KB EEPROM stores device calibration and audit trail data. The 12-channel ADC reads pressure transducers and thermistor arrays; the 16-bit timer generates precise dosing PWM. The 5 V tolerance and industrial temperature grade suit clinical environments. Note: do not use in life-support or implantable devices without additional qualification.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC18F6628T-I/PT — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC18F6628-I/PT | PIC18F6628-E/PT | PIC18F6627-I/PT | PIC18F6622-E/PT |
|---|---|---|---|---|---|
| Package | 64-pin TQFP (PT) 10x10 mm | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 96 KB | 96 KB | 96 KB | 70 KB (-27%) | 64 KB (-33%) |
| SRAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| Data EEPROM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Clock Speed | 40 MHz / 10 MIPS | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Operating 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 | 4.2 V to 5.5 V |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +125C (Extended) |
| I/O Pins | 54 | 54 | 54 | 54 | 54 |
| Packaging Form | Tape & Reel | Tray | Tray | Tray | Tray |
تفاوت‌های کلیدی
- Highest Flash density in the PIC18F662x TQFP-64 family (در مقابلPIC18F6622-E/PT)
- Industrial-grade temperature with tape-and-reel packaging (در مقابلPIC18F6628-I/PT)
- Mature PIC18F enhanced architecture with 16-bit instructions (در مقابلPIC18F67J11-I/PT (3.3 V variant))
یادداشت‌های طراحی
Place 100 nF ceramic decoupling capacitors within 5 mm of every VDD/VSS pin pair, plus a single 10 uF bulk tantalum or ceramic capacitor at the MCU's main supply entry. The PIC18F6628T-I/PT has multiple VDD/VSS pairs (pins 11/12, 29/30, 46/47) that must each be decoupled; sharing one cap across multiple pairs risks ground bounce during CCP PWM transitions.
Configure MCLR (pin 1) with a 10 kohm pull-up to VDD and a 100 nF cap to ground for proper reset. Floating MCLR causes intermittent brown-out resets under EMI. Also: when using the parallel slave port, PORTE pins RE0/RE1/RE2 (pins 8-10) must be configured as digital outputs and PORTD as inputs/PSP mode; an unconfigured PSP can lock the bus.
Route the crystal traces between OSC1 (pin 13) and OSC2 (pin 14) with short, symmetric traces and a ground guard ring; keep them away from high-current PWM traces (CCP1, CCP2) to avoid injection of switching noise into the oscillator. For 40 MHz operation with a 10 MHz crystal, the internal 4x PLL is enabled in CONFIG1H and the 10 MHz must have 20 ppm accuracy or better.
When using the ADC, connect AVSS (pin 60) and AVDD (pin 61) to a clean analog supply; isolate from digital VDD with a ferrite bead, and configure ANSEL registers to disable digital input buffers on analog pins. Failing to disable digital inputs allows digital switching noise to couple into the ADC sample-and-hold capacitor, degrading 10-bit ADC accuracy to 8-bit effective resolution.
اطلاعات انطباق
RoHS compliant Pb-free TQFP package per Microchip product page. Not AEC-Q100 qualified; choose automotive-grade PIC18F K-series parts for vehicle applications.
