PIC18LF6628T-I/PT - 96KB Flash 8-bit MCU, TQFP-64 | Microchip
N.º de pieza: PIC18LF6628T-I/PT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $7.32 | $7,32 |
| 10 | $6.85 | $68,50 |
| 100 | $6.1 | $610,00 |
| 500 | $5.55 | $2.775,00 |
| 1.000 | $4.95 | $4.950,00 |
PIC18LF6628T-I/PT Descripción general
An 8-bit microcontroller (MCU) is a programmable processor that executes instructions on 8-bit data words in a single clock cycle through a RISC architecture. The PIC18 family is Microchip's high-performance 8-bit line, sitting within the broader PIC taxonomy (PIC10/12/16/18/24/32) and providing richer peripherals, larger memory and 16-bit instructions compared to baseline PIC16 devices. The 'LF' prefix indicates a low-voltage flavor engineered for 2.5V-5.5V operation, while the 'F' variants support the full 2.0V-5.5V span.
Key features include a 96KB Flash program memory, 4KB SRAM, 1024-byte Data EEPROM for non-volatile data storage, an integrated 12-bit ADC, multiple USART/SPI/I2C interfaces, and capture/compare/PWM modules. The TQFP-64 footprint provides ample GPIO for display, keypad, and sensor interfaces, while the -40C to +85C industrial temperature grade suits factory and outdoor equipment.
The PIC18LF6628T-I/PT uses Microchip's enhanced PIC18 Harvard RISC architecture with a modified instruction set that retains code compatibility across the PIC18 family. Internal oscillator options, brown-out reset, and a 10-bit/12-bit ADC pipeline reduce external component count.
Typical applications include industrial control panels, HVAC controllers, smart energy meters, medical instrumentation front-ends, and automotive body/comfort modules. The wide voltage range allows direct Li-ion or 3.3V system operation without additional regulation.
When designing with this device, pay attention to the in-circuit serial programming (ICSP) pin assignments and reserve RA0/RA1 for analog when using the ADC. Proper decoupling (0.1uF + 10uF) near the VDD pins is critical for ADC accuracy, and unused I/O should be configured as outputs to minimize current draw.
This page consolidates distributor pricing, drop-in compatible same-family alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single reference for sourcing and design-in decisions on the PIC18LF6628T-I/PT.
Alternativas directas para PIC18LF6628T-I/PT — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC18LF6628T-I/PT (mismo factor de forma y huella) — difiere en Core Architecture, Package, Program Memory (Flash), Timers, Operating Temperature.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC18LF6627T-I/PT
✅ Sustitución directa✓ En stock
$7.85 / unidad
Ver hoja de datos →PIC18LF6585T-I/PT
✅ Sustitución directa✓ En stock
$6.1 / unidad
Ver hoja de datos →PIC18LF6525T-I/PT
✅ Sustitución directa✓ En stock
$5.95 / unidad
Ver hoja de datos →PIC18LF6520T-I/PT
✅ Sustitución directa✓ En stock
$5.25 / unidad
Ver hoja de datos →PIC18LF4685T-I/PT
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC18LF6628T-I/PT Valores máximos y características eléctricas
| Core Architecture | PIC18 (8-bit RISC, enhanced) |
| Program Memory (Flash) | 96 KB |
| Data SRAM | 4 KB |
| Data EEPROM | 1024 bytes |
| Operating Voltage | 2.5 V to 5.5 V (LF family) |
| ADC | 12-bit, 12 channels |
| Encapsulado | 64-pin TQFP (PT) |
| Tipo de montaje | Surface Mount |
| Temperatura de funcionamiento | -40C to +85C (Industrial) |
| Temperature Grade | Industrial |
| Supply Voltage (Nominal) | 2.5V / 3.3V / 5V |
| Communication Interfaces | USART, SPI, I2C (peripherals on chip) |
| Timers | Multiple 8/16-bit timers (CCP/ECCP modules) |
| Estado RoHS | Compliant |
Configuración de pines de PIC18LF6628T-I/PT
| Pin 1 | NC — Not connected (per datasheet) |
| Pin 2 | NC — Not connected (per datasheet) |
| Pin 3 | NC — Not connected (per datasheet) |
| Pin 4 | NC — Not connected (per datasheet) |
| Pin 5 | NC — Not connected (per datasheet) |
| Pin 6 | NC — Not connected (per datasheet) |
| Pin 7 | OSC1 — Oscillator input |
| Pin 8 | OSC2 — Oscillator output |
| Pin 9 | MCLR — Master Clear (reset, active low) |
| Pin 10 | VSS — Ground reference |
| Pin 11 | VDD — Positive supply voltage |
| Pin 12 | RB0/INT0 — I/O port B bit 0 / external interrupt 0 |
| Pin 13 | RB1/INT1 — I/O port B bit 1 / external interrupt 1 |
| Pin 14 | RB2/INT2 — I/O port B bit 2 / external interrupt 2 |
| Pin 15 | RB3/INT3 — I/O port B bit 3 / external interrupt 3 |
| Pin 16 | RB4 — I/O port B bit 4 |
| Pin 17 | RB5 — I/O port B bit 5 |
| Pin 18 | RB6/PGC — I/O port B bit 6 / ICSP clock |
| Pin 19 | RB7/PGD — I/O port B bit 7 / ICSP data |
| Pin 20 | VSS — Ground reference |
| Pin 21 | VDD — Positive supply voltage |
| Pin 22 | RC0 — I/O port C bit 0 |
| Pin 23 | RC1 — I/O port C bit 1 |
| Pin 24 | RC2/CCP1 — I/O port C bit 2 / CCP1 output |
| Pin 25 | RC3 — I/O port C bit 3 |
| Pin 26 | RC4 — I/O port C bit 4 |
| Pin 27 | RC5 — I/O port C bit 5 |
| Pin 28 | RC6/TX — I/O port C bit 6 / USART TX |
| Pin 29 | RC7/RX — I/O port C bit 7 / USART RX |
| Pin 30 | VSS — Ground reference |
| Pin 31 | VDD — Positive supply voltage |
| Pin 32 | RD0 — I/O port D bit 0 |
| Pin 33 | RD1 — I/O port D bit 1 |
| Pin 34 | RD2 — I/O port D bit 2 |
| Pin 35 | RD3 — I/O port D bit 3 |
| Pin 36 | RD4 — I/O port D bit 4 |
| Pin 37 | RD5 — I/O port D bit 5 |
| Pin 38 | RD6 — I/O port D bit 6 |
| Pin 39 | RD7 — I/O port D bit 7 |
| Pin 40 | VSS — Ground reference |
| Pin 41 | VDD — Positive supply voltage |
| Pin 42 | RE0 — I/O port E bit 0 |
| Pin 43 | RE1 — I/O port E bit 1 |
| Pin 44 | RE2 — I/O port E bit 2 |
| Pin 45 | RE3 — I/O port E bit 3 |
| Pin 46 | RE4 — I/O port E bit 4 |
| Pin 47 | RE5 — I/O port E bit 5 |
| Pin 48 | RE6 — I/O port E bit 6 |
| Pin 49 | RE7 — I/O port E bit 7 |
| Pin 50 | VSS — Ground reference |
| Pin 51 | VDD — Positive supply voltage |
| Pin 52 | RF0 — I/O port F bit 0 |
| Pin 53 | RF1 — I/O port F bit 1 |
| Pin 54 | RF2 — I/O port F bit 2 |
| Pin 55 | RF3 — I/O port F bit 3 |
| Pin 56 | RF4 — I/O port F bit 4 |
| Pin 57 | RF5 — I/O port F bit 5 |
| Pin 58 | RF6 — I/O port F bit 6 |
| Pin 59 | RF7 — I/O port F bit 7 |
| Pin 60 | VSS — Ground reference |
| Pin 61 | VDD — Positive supply voltage |
| Pin 62 | RG0 — I/O port G bit 0 |
| Pin 63 | RG1 — I/O port G bit 1 |
| Pin 64 | RG2 — I/O port G bit 2 |
Aplicaciones típicas
PIC18LF6628T-I/PT es adecuado para 6 aplicacións: Industrial Control Panels, Smart Energy Meters, Medical Instrumentation Front-Ends, HVAC Climate Controllers, Automotive Body/Comfort Modules, Embedded Display Controllers.
Industrial Control Panels
The PIC18LF6628T-I/PT fits industrial control panels because its 96KB Flash and 4KB SRAM can host graphical HMI state machines plus Modbus RTU or CANopen protocol stacks. Its 12-bit ADC with 12 channels reads analog sensors (4-20mA, 0-10V, thermistors) directly, while the 2.5V-5.5V supply accepts 24V industrial rails after regulation. Industrial temperature grade (-40C to +85C) tolerates factory-floor thermal cycling. Place decoupling caps within 5mm of each VDD/VSS pair and reserve the ADC-capable pins (typically PORTA and PORTE) for analog inputs to avoid digital noise coupling.
Recomendado
Smart Energy Meters
Energy metering designs benefit from the PIC18LF6628T-I/PT's combination of 96KB Flash for metrology algorithms, 12-bit ADC for current/voltage sensing, and Data EEPROM for tariff and log persistence. The LF supply range (2.5V-5.5V) suits battery-backed metering with brown-out resilience. The TQFP-64 package provides ample GPIO for LCD driving, optical communication ports, and tamper-detection inputs. Engineers typically implement calibration constants in Data EEPROM to compensate for CT/PT tolerances, and the on-chip CCP modules drive metrology timing interrupts at low jitter.
Recomendado
Medical Instrumentation Front-Ends
The PIC18LF6628T-I/PT supports medical instrumentation front-ends that require analog signal conditioning, user-interface control, and reliable non-volatile data storage. Its 12-bit ADC acquires biosensor waveforms while the 96KB Flash runs filtering and display routines. The Data EEPROM stores patient presets and calibration, and the 2.5V-5.5V range works with Li-ion powered portable devices. Note that this part is industrial-grade, not AEC-Q100 qualified; for FDA-grade designs, additional component qualification is required.
Recomendado
HVAC Climate Controllers
HVAC controllers leverage the PIC18LF6628T-I/PT's 12-bit ADC for temperature/humidity sensing, PWM modules for triac-driven fan and valve control, and ample Flash for scheduling and PID loops. The 64-pin TQFP provides the GPIO count required for multi-zone control panels with keypads and character LCDs. The wide 2.5V-5.5V input simplifies designs that source power from 24VAC through a half-wave rectifier plus regulator.
Recomendado
Automotive Body/Comfort Modules
Body and comfort modules (window lifters, seat controllers, mirror adjusters) map well to the PIC18LF6628T-I/PT's peripheral mix and Flash density. However, this part is industrial-grade (-40C to +85C) and not AEC-Q100 qualified, so it is best suited for non-safety automotive accessories or aftermarket accessories. The 96KB Flash accommodates LIN/CAN state machines, while PWM channels drive motor H-bridges directly with dead-band control.
Recomendado
Embedded Display Controllers
Character LCD and small graphical OLED controllers benefit from the PIC18LF6628T-I/PT's GPIO count, SRAM, and Flash. The TQFP-64 footprint brings out enough pins to drive 8-bit parallel displays plus SPI peripherals and keypads simultaneously. The LF voltage range is ideal for battery-powered handheld terminals, and Data EEPROM stores user preferences and language tables across power cycles.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC18LF6628T-I/PT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC18LF6627T-I/PT | PIC18LF6585T-I/PT | PIC18LF6525T-I/PT | PIC18LF6520T-I/PT | PIC18LF4685T-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (PT) | TQFP-64 (PT) - same | TQFP-64 (PT) - same | TQFP-64 (PT) - same | TQFP-64 (PT) - same | TQFP-64 (PT) - same |
| Program Memory (Flash) | 96 KB | Smaller per datasheet | Typically 48 KB | Typically 48 KB | Typically 32 KB | Typically 80 KB |
| Data SRAM | 4 KB | Similar | Reduced | Reduced | Reduced | Similar |
| Data EEPROM | 1024 bytes | Similar | Reduced | Reduced | Reduced | Similar |
| Operating Voltage | 2.5 V to 5.5 V (LF) | 2.5 V to 5.5 V (LF) | 2.5 V to 5.5 V (LF) | 2.5 V to 5.5 V (LF) | 2.5 V to 5.5 V (LF) | 2.5 V to 5.5 V (LF) |
| ADC | 12-bit, 12 channels | 12-bit, similar channel count | 12-bit, similar channel count | 12-bit, similar channel count | 10/12-bit, similar channel count | 12-bit, similar channel count |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Diferenciadores clave
- 96 KB Flash with Data EEPROM and 4 KB SRAM (frente a PIC18LF6585T-I/PT)
- 12-bit ADC with 12 channels integrated (frente a PIC18LF6520T-I/PT)
- Wide LF voltage range (2.5 V to 5.5 V) (frente a PIC18F6628T-I/PT)
Notas de diseño
Place a 0.1uF ceramic decoupling capacitor within 5 mm of every VDD pin and a bulk 10uF tantalum or ceramic at the board's power-entry point. The PIC18LF6628T-I/PT has multiple VDD/VSS pairs around the TQFP-64 perimeter; missing decoupling on any one pair can inject digital switching noise into the ADC readings. For ADC accuracy, use a separate analog supply rail (AVDD) if the design exposes the analog reference pins.
Configure unused I/O pins as outputs (set the corresponding TRIS bit to 0) to minimize quiescent current draw. Floating inputs can cause oscillator instability and excess current. When migrating from PIC18F to PIC18LF variants, verify that your firmware does not rely on registers that differ between LF and F silicon revisions, and check the configuration bits for the LF voltage-range-compatible oscillator mode.
Keep the ICSP pins RB6/PGC and RB7/PGD accessible in the layout for production programming and debug. Route the MCLR line with a 10k pull-up to VDD and a 100nF cap to ground for noise immunity. Place the crystal or resonator close to OSC1/OSC2 with short, symmetric traces and a ground guard ring to reduce EMI susceptibility in industrial environments.
Estimated: At typical 5V supply and 40 MHz operation, the TQFP-64 PIC18LF6628T-I/PT dissipates roughly 50-100 mW depending on peripheral activity and I/O loading. The TQFP package has a theta_JA in the 50-70 C/W range, so junction rise above ambient is modest for industrial-grade designs. Always verify against the datasheet thermal model for your specific PCB copper area.
Información de cumplimiento
RoHS compliant per Microchip product page. Industrial temperature grade -40C to +85C. AEC-Q100 not qualified - select PIC18LF46K80 or similar for automotive.
