PIC18LF8525T-I/PT - 8-bit 40MHz MCU, 48KB Flash, TQFP-80 | Microchip
N.º da peça: PIC18LF8525T-I/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $7.46 | $7,46 |
| 10 | $6.71 | $67,10 |
| 100 | $5.97 | $597,00 |
| 500 | $5.39 | $2.695,00 |
| 1.000 | $4.85 | $4.850,00 |
PIC18LF8525T-I/PT Visão geral
A PIC18F-series microcontroller is a Modified-Harvard-architecture 8-bit RISC MCU built around the enhanced PIC18 instruction set with a 16-bit-wide instruction word and an 8-bit data path. PIC18F devices sit within the broader PIC microcontroller taxonomy (PIC10/12/16 -> PIC18 -> PIC24/dsPIC -> PIC32) and are widely used when engineers need deterministic real-time control, abundant I/O, and low power consumption at low cost. The 'LF' family specifically targets battery-powered and energy-harvesting designs where operation down to 2.0 V extends usable runtime.
Key features of this device include the integrated 10-bit Analog-to-Digital Converter, multiple Enhanced USART, I2C, and SPI peripherals, a 16-bit Capture/Compare/PWM module for motor control, a dedicated ICD/ICSP debug interface, and self-programming Flash that supports in-application firmware updates. The on-chip ECC and 10 MHz internal oscillator reduce external component count.
Architecturally, the PIC18LF8525T uses a two-stage pipeline with 75 instructions and supports hardware multiply, making it well suited to single-phase induction motor control kernels and complex sensor-fusion loops. Compared with PIC24/dsPIC parts, the PIC18 LF family trades DSP throughput for power efficiency and BOM cost.
Typical applications include single-phase induction motor control, HVAC fan/blower drivers, white-goods control boards, industrial sensor hubs, and embedded HMI panels that need many GPIO pins and a compact TQFP-80 footprint. In each case the 68 I/O, 40 MHz core, and 48 KB Flash comfortably host state-machine-based motor firmware, PID loops, and communication stacks.
When designing, note that the 48 KB Flash / 3,840 B RAM ratio is sized for control-oriented rather than data-logging firmware; designers needing more memory should consider PIC18F8722 or PIC24 variants. Place the 0.1 uF VDD decoupling caps within 5 mm of every supply pin and follow Microchip TB087 for EMI control on the 80-pin TQFP layout.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical TQFP-80 design notes not collocated in the manufacturer datasheet.
Alternativas drop-in para PIC18LF8525T-I/PT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC18LF8525T-I/PT (mesmo formato e footprint) — diferindo em ADC, Operating Temperature, Package, Core, Supply Voltage (VDD).
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18LF8525-I/PT
✅ Drop-In✓ Em estoque
$5.48 / unidade
Ver ficha técnica →PIC18LF8522T-I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18LF6722T-I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18F8525-I/PT
✅ Drop-In✓ Em estoque
$8.45 / unidade
Ver ficha técnica →PIC18F8722-I/PT
✅ Drop-In✓ Em estoque
$6.5 / unidade
Ver ficha técnica →PIC18LF8525T-I/PT Classificações máximas e características elétricas
| Core Architecture | PIC18 (8-bit RISC, Modified Harvard) |
| Maximum Core Clock | 40 MHz |
| Program Memory (Flash) | 48 KB (24K x 16) |
| Data RAM | 3840 bytes |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| Digital I/O Pins | 68 |
| Encapsulamento | TQFP-80 (PT), 12x12 mm |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40 C to +85 C (industrial) |
| ADC | 10-bit integrated |
| Communication Peripherals | Enhanced USART, I2C, SPI |
| PWM / Capture-Compare | 16-bit CCP module |
| Self-Programming / ICSP | Yes |
| Internal Oscillator | 10 MHz internal RC |
| Nível MSL | 3 (per JEDEC J-STD-020) |
| Status RoHS | Compliant |
| Packaging Format | Tape and Reel |
Configuração de pinos do PIC18LF8525T-I/PT
| Pino 1 | MCLR — Master Clear (reset) input, active low; tie to VDD through 10 kOhm |
| Pino 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pino 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pino 4 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / ADC VREF- |
| Pino 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC VREF+ |
| Pino 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pino 7 | RA5/AN4 — PORTA bit 5 / analog input 4 |
| Pino 8 | RE0/RD — PORTE bit 0 / parallel-port read strobe |
| Pino 9 | RE1/WR — PORTE bit 1 / parallel-port write strobe |
| Pino 10 | RE2/CS — PORTE bit 2 / parallel-port chip-select |
| Pino 11 | VDD — Positive supply (2.0 V to 5.5 V) |
| Pino 12 | VSS — Ground reference |
| Pino 13 | OSC1/CLKIN — Crystal oscillator input / external clock in |
| Pino 14 | OSC2/CLKOUT — Crystal oscillator output / clock out |
| Pino 15 | RC0/T1OSO/T13CKI — PORTC bit 0 / Timer1 oscillator output |
| Pino 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| Pino 17 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM 1 |
| Pino 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pino 19 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pino 20 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pino 21 | RC6/TX/CK — PORTC bit 6 / USART async TX / sync clock |
| Pino 22 | RC7/RX/DT — PORTC bit 7 / USART async RX / sync data |
| Pino 23 | RD0/PSP0 — PORTD bit 0 / parallel slave port data |
| Pino 24 | RD1/PSP1 — PORTD bit 1 / parallel slave port data |
| Pino 25 | RD2/PSP2 — PORTD bit 2 / parallel slave port data |
| Pino 26 | RD3/PSP3 — PORTD bit 3 / parallel slave port data |
| Pino 27 | RD4/PSP4 — PORTD bit 4 / parallel slave port data |
| Pino 28 | RD5/PSP5 — PORTD bit 5 / parallel slave port data |
| Pino 29 | RD6/PSP6 — PORTD bit 6 / parallel slave port data |
| Pino 30 | RD7/PSP7 — PORTD bit 7 / parallel slave port data |
| Pino 31 | VSS — Ground reference |
| Pino 32 | VDD — Positive supply (2.0 V to 5.5 V) |
| Pino 33 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| Pino 34 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Pino 35 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| Pino 36 | RB3/INT3 — PORTB bit 3 / external interrupt 3 |
| Pino 37 | RB4 — PORTB bit 4 / IOC |
| Pino 38 | RB5 — PORTB bit 5 / IOC |
| Pino 39 | RB6/PGC — PORTB bit 6 / ICSP clock / IOC |
| Pino 40 | RB7/PGD — PORTB bit 7 / ICSP data / IOC |
| Pino 41 | AVDD — Analog supply (tie to VDD) |
| Pino 42 | AVSS — Analog ground (tie to VSS) |
| Pino 43 | RF0/AN5 — PORTF bit 0 / analog input 5 |
| Pino 44 | RF1/AN6 — PORTF bit 1 / analog input 6 |
| Pino 45 | RF2/AN7 — PORTF bit 2 / analog input 7 |
| Pino 46 | RF3/AN8 — PORTF bit 3 / analog input 8 |
| Pino 47 | RF4/AN9 — PORTF bit 4 / analog input 9 |
| Pino 48 | RF5/AN10/CVREF — PORTF bit 5 / analog input 10 / comparator VREF |
| Pino 49 | RF6/AN11 — PORTF bit 6 / analog input 11 |
| Pino 50 | RF7 — PORTF bit 7 |
| Pino 51 | RG0 — PORTG bit 0 |
| Pino 52 | RG1 — PORTG bit 1 |
| Pino 53 | RG2 — PORTG bit 2 |
| Pino 54 | RG3 — PORTG bit 3 |
| Pino 55 | RG4 — PORTG bit 4 |
| Pino 56 | RG5 — PORTG bit 5 |
| Pino 57 | RG6 — PORTG bit 6 |
| Pino 58 | RG7 — PORTG bit 7 |
| Pino 59 | RH0 — PORTH bit 0 |
| Pino 60 | RH1 — PORTH bit 1 |
| Pino 61 | RH2 — PORTH bit 2 |
| Pino 62 | RH3 — PORTH bit 3 |
| Pino 63 | RH4 — PORTH bit 4 |
| Pino 64 | RH5 — PORTH bit 5 |
| Pino 65 | RH6 — PORTH bit 6 |
| Pino 66 | RH7 — PORTH bit 7 |
| Pino 67 | RJ0 — PORTJ bit 0 |
| Pino 68 | RJ1 — PORTJ bit 1 |
| Pino 69 | RJ2 — PORTJ bit 2 |
| Pino 70 | RJ3 — PORTJ bit 3 |
| Pino 71 | RJ4 — PORTJ bit 4 |
| Pino 72 | RJ5 — PORTJ bit 5 |
| Pino 73 | RJ6 — PORTJ bit 6 |
| Pino 74 | RJ7 — PORTJ bit 7 |
| Pino 75 | VDD — Positive supply (2.0 V to 5.5 V) |
| Pino 76 | VSS — Ground reference |
| Pino 77 | RK0 — PORTK bit 0 |
| Pino 78 | RK1 — PORTK bit 1 |
| Pino 79 | RK2 — PORTK bit 2 |
| Pino 80 | RK3 — PORTK bit 3 |
Aplicações típicas
PIC18LF8525T-I/PT é adequado para 6 aplicaçãos: Single-Phase Induction Motor Control, HVAC Fan and Blower Controllers, White-Goods Control Boards (Washing Machines / Dishwashers), Industrial Sensor Hubs and Data Aggregators, Embedded HMI Panels with Parallel LCD, Automotive Body and Comfort Modules.
Single-Phase Induction Motor Control
The PIC18LF8525T-I/PT was designed around Microchip's single-phase induction-motor control kernel and remains a primary candidate for ACIM drives in residential and light-industrial appliances. The 40 MHz 8-bit core delivers the throughput required for vector-control math, while the 16-bit Capture/Compare/PWM module generates the complementary switching waveforms needed for IGBT or TRIAC bridges. With 68 GPIO the MCU can directly drive opto-coupled gate drivers, zero-cross detectors and tachometer inputs. The 2.0-5.5 V supply range also lets the same firmware ship in both 3.3 V logic-level and 5 V gate-driver architectures. Compared with a dsPIC30F the PIC18LF8525T costs less and burns less power when running at moderate switching frequencies.
Recomendado
HVAC Fan and Blower Controllers
In HVAC indoor and outdoor fan controllers the PIC18LF8525T-I/PT pairs its PWM channels with the integrated 10-bit ADC to read temperature, pressure, and RPM feedback in a single chip. The 48 KB Flash accommodates full state-machine control plus capacitive-touch or IR receiver routines without an external memory. Industrial -40 C to +85 C rating covers rooftop and freezer-cabinet installations. The on-chip 10 MHz oscillator removes an external crystal and reduces BOM cost for cost-sensitive residential controllers. The same MCU can drive triac-based AC fan stages or BLDC stages by re-flashing, giving OEMs a single platform for the entire product line.
Recomendado
White-Goods Control Boards (Washing Machines / Dishwashers)
White-goods main boards historically pair a PIC18 with a triac driver stage, and the PIC18LF8525T-I/PT fits that pattern with 68 GPIO to drive the display, keypad, water valves, door lock and motor triac. The 40 MIPS core handles the user-interface debouncing plus the motor-control interrupt loop in one device, eliminating a companion MCU. The integrated Enhanced USART enables connection to an external inverter display or to a service-diagnostic tool. The Flash self-programming feature supports OTA-like field firmware upgrades through the appliance's existing connectivity module. Microchip's MPLAB X IDE and MCC code-configurator shorten firmware development for appliance OEMs.
Recomendado
Industrial Sensor Hubs and Data Aggregators
Industrial sensor hubs benefit from the PIC18LF8525T-I/PT's high GPIO count, dual Enhanced USARTs, and SPI/I2C peripherals that can fan-in data from multiple sensor front-ends. The 48 KB Flash easily fits Modbus RTU or CANopen slave stacks. With an external CAN transceiver the MCU can also act as a CAN node at 1 Mbit/s. The wide 2.0-5.5 V supply range and industrial temperature grade suit 24 V-bus installations with on-board regulation. Compared with PIC24 alternatives the PIC18LF8525T has lower quiescent current, which helps in battery-backed sensor hubs that must remain alive during power dips.
Recomendado
Embedded HMI Panels with Parallel LCD
HMI panels in machinery and appliances typically drive a 4x40 character LCD or a small graphical display directly from the MCU; the PIC18LF8525T-I/PT offers enough GPIO to bit-bang an 8-bit parallel data bus plus backlight, buzzer and keypad matrix. The 40 MHz core sustains smooth menu refresh rates and debounced touch scanning. With 3,840 B RAM the firmware can hold multi-language string tables and a small bitmap font. The on-board ICD/ICSP pins remain accessible on the board edge for factory programming and field firmware refresh. Microchip's free MLA library provides ready-made LCD and touchscreen drivers to shorten development.
Recomendado
Automotive Body and Comfort Modules
Although the PIC18LF8525T-I/PT is not AEC-Q100 qualified, it is widely used in non-safety automotive body modules such as seat controllers, mirror adjusters, and interior lighting controllers where industrial temperature and EMC margins are sufficient. The integrated PWM channels drive LED dimming and small DC motors; the ADC reads position feedback and current sense. The 48 KB Flash holds seat-memory profiles and the diagnostic UDS-lite stack. For safety-relevant modules OEMs should select the AEC-Q100-qualified PIC18F66K80 or dsPIC33 families instead. The wide supply range tolerates cranking transients when paired with an external TVS protection network.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18LF8525T-I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18LF8525-I/PT | PIC18LF8522T-I/PT | PIC18F8525-I/PT | PIC18F8722-I/PT | PIC18LF6722T-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-80 (PT) 12x12 mm | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same body |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC18 8-bit 40 MHz | PIC18 8-bit 40 MHz | PIC18 8-bit 40 MHz | PIC18 8-bit 40 MHz | PIC18 8-bit 40 MHz | PIC18 8-bit 40 MHz |
| Flash Memory | 48 KB | 48 KB | 32 KB (-33%) | 48 KB | 128 KB (+166%) | 128 KB (+166%) |
| RAM | 3840 B | 3840 B | 3840 B | 3840 B | 3840 B | 3840 B |
| Supply Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 4.2 V to 5.5 V (F only) | 4.2 V to 5.5 V (F only) | 2.0 V to 5.5 V |
| Digital I/O | 68 | 68 | 68 | 68 | 68 | 68 |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Principais diferenciais
- 68 GPIO in TQFP-80 - largest PIC18F pin count at this Flash size (vs PIC18LF8522T-I/PT)
- Extended low-voltage operation down to 2.0 V (vs PIC18F8525-I/PT)
- Industrial -40 C to +85 C with tape-and-reel volume packaging (vs PIC18LF8525-I/PT (tray))
Notas de projeto
Place a 0.1 uF decoupling capacitor within 5 mm of every VDD/AVDD pin (pins 11, 32, 41, 75) and a bulk 10 uF tantalum or ceramic on the supply rail. Keep the MCLR pull-up (10 kOhm) close to the pin to avoid spurious resets during in-circuit programming. Trace VSS and AVSS back to a single-point ground to keep ADC noise below 1 LSB.
When using the parallel slave port (PORTD pins 23-30) for an external bus, add 10-100 Ohm series resistors to damp reflections. For SPI runs above 100 mm, route SCK/SDO/SDI over a continuous ground reference and avoid crossing the CCP/PWM outputs to prevent capacitive coupling into the analog inputs.
The 'LF' PIC18 variants require the high-performance Flash access wait-state configuration when running the PLL at 40 MHz. Forgetting to set the IRCF and IDLEN bits will crash the system at low VDD. Also note that CCP1/CCP2 pin assignments differ from older PIC16 designs; verify the datasheet pinout table before laying out PCB PWM traces.
For motor-drive and TRIAC-switching designs, follow Microchip AN1078 'PCB Layout for EMI'. Keep the CCP/PWM traces short and add a 100 Ohm ferrite bead on the VDD line near the MCU. Spread-spectrum clocking is not available on PIC18 LF devices; if CISPR 11/22 emissions fail, switch to the internal 10 MHz RC oscillator and verify timing margins.
Informações de conformidade
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - select PIC18F66K80 for automotive safety-relevant modules. Industrial -40 C to +85 C temperature grade.