PIC18LF8525T-I/PT - 8-bit 40MHz MCU, 48KB Flash, TQFP-80 | Microchip
Référence : PIC18LF8525T-I/PT ✓ Actif| Qté | Prix unitaire | 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 Présentation
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.
Alternatives de remplacement direct pour PIC18LF8525T-I/PT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC18LF8525T-I/PT (même facteur de forme et même empreinte) — différant par ADC, Operating Temperature, Package, Core, Supply Voltage (VDD).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18LF8525-I/PT
✅ Remplacement direct✓ En stock
$5.48 / unité
Voir la fiche technique →PIC18LF8522T-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18LF6722T-I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC18F8525-I/PT
✅ Remplacement direct✓ En stock
$8.45 / unité
Voir la fiche technique →PIC18F8722-I/PT
✅ Remplacement direct✓ En stock
$6.5 / unité
Voir la fiche technique →PIC18LF8525T-I/PT Valeurs maximales et caractéristiques électriques
| 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 |
| Boîtier | TQFP-80 (PT), 12x12 mm |
| Type de montage | Surface Mount |
| Température de fonctionnement | -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 |
| Niveau MSL | 3 (per JEDEC J-STD-020) |
| Statut RoHS | Compliant |
| Packaging Format | Tape and Reel |
Configuration des broches de PIC18LF8525T-I/PT
| Broche 1 | MCLR — Master Clear (reset) input, active low; tie to VDD through 10 kOhm |
| Broche 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Broche 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Broche 4 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / ADC VREF- |
| Broche 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC VREF+ |
| Broche 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Broche 7 | RA5/AN4 — PORTA bit 5 / analog input 4 |
| Broche 8 | RE0/RD — PORTE bit 0 / parallel-port read strobe |
| Broche 9 | RE1/WR — PORTE bit 1 / parallel-port write strobe |
| Broche 10 | RE2/CS — PORTE bit 2 / parallel-port chip-select |
| Broche 11 | VDD — Positive supply (2.0 V to 5.5 V) |
| Broche 12 | VSS — Ground reference |
| Broche 13 | OSC1/CLKIN — Crystal oscillator input / external clock in |
| Broche 14 | OSC2/CLKOUT — Crystal oscillator output / clock out |
| Broche 15 | RC0/T1OSO/T13CKI — PORTC bit 0 / Timer1 oscillator output |
| Broche 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| Broche 17 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM 1 |
| Broche 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Broche 19 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Broche 20 | RC5/SDO — PORTC bit 5 / SPI data out |
| Broche 21 | RC6/TX/CK — PORTC bit 6 / USART async TX / sync clock |
| Broche 22 | RC7/RX/DT — PORTC bit 7 / USART async RX / sync data |
| Broche 23 | RD0/PSP0 — PORTD bit 0 / parallel slave port data |
| Broche 24 | RD1/PSP1 — PORTD bit 1 / parallel slave port data |
| Broche 25 | RD2/PSP2 — PORTD bit 2 / parallel slave port data |
| Broche 26 | RD3/PSP3 — PORTD bit 3 / parallel slave port data |
| Broche 27 | RD4/PSP4 — PORTD bit 4 / parallel slave port data |
| Broche 28 | RD5/PSP5 — PORTD bit 5 / parallel slave port data |
| Broche 29 | RD6/PSP6 — PORTD bit 6 / parallel slave port data |
| Broche 30 | RD7/PSP7 — PORTD bit 7 / parallel slave port data |
| Broche 31 | VSS — Ground reference |
| Broche 32 | VDD — Positive supply (2.0 V to 5.5 V) |
| Broche 33 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| Broche 34 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Broche 35 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| Broche 36 | RB3/INT3 — PORTB bit 3 / external interrupt 3 |
| Broche 37 | RB4 — PORTB bit 4 / IOC |
| Broche 38 | RB5 — PORTB bit 5 / IOC |
| Broche 39 | RB6/PGC — PORTB bit 6 / ICSP clock / IOC |
| Broche 40 | RB7/PGD — PORTB bit 7 / ICSP data / IOC |
| Broche 41 | AVDD — Analog supply (tie to VDD) |
| Broche 42 | AVSS — Analog ground (tie to VSS) |
| Broche 43 | RF0/AN5 — PORTF bit 0 / analog input 5 |
| Broche 44 | RF1/AN6 — PORTF bit 1 / analog input 6 |
| Broche 45 | RF2/AN7 — PORTF bit 2 / analog input 7 |
| Broche 46 | RF3/AN8 — PORTF bit 3 / analog input 8 |
| Broche 47 | RF4/AN9 — PORTF bit 4 / analog input 9 |
| Broche 48 | RF5/AN10/CVREF — PORTF bit 5 / analog input 10 / comparator VREF |
| Broche 49 | RF6/AN11 — PORTF bit 6 / analog input 11 |
| Broche 50 | RF7 — PORTF bit 7 |
| Broche 51 | RG0 — PORTG bit 0 |
| Broche 52 | RG1 — PORTG bit 1 |
| Broche 53 | RG2 — PORTG bit 2 |
| Broche 54 | RG3 — PORTG bit 3 |
| Broche 55 | RG4 — PORTG bit 4 |
| Broche 56 | RG5 — PORTG bit 5 |
| Broche 57 | RG6 — PORTG bit 6 |
| Broche 58 | RG7 — PORTG bit 7 |
| Broche 59 | RH0 — PORTH bit 0 |
| Broche 60 | RH1 — PORTH bit 1 |
| Broche 61 | RH2 — PORTH bit 2 |
| Broche 62 | RH3 — PORTH bit 3 |
| Broche 63 | RH4 — PORTH bit 4 |
| Broche 64 | RH5 — PORTH bit 5 |
| Broche 65 | RH6 — PORTH bit 6 |
| Broche 66 | RH7 — PORTH bit 7 |
| Broche 67 | RJ0 — PORTJ bit 0 |
| Broche 68 | RJ1 — PORTJ bit 1 |
| Broche 69 | RJ2 — PORTJ bit 2 |
| Broche 70 | RJ3 — PORTJ bit 3 |
| Broche 71 | RJ4 — PORTJ bit 4 |
| Broche 72 | RJ5 — PORTJ bit 5 |
| Broche 73 | RJ6 — PORTJ bit 6 |
| Broche 74 | RJ7 — PORTJ bit 7 |
| Broche 75 | VDD — Positive supply (2.0 V to 5.5 V) |
| Broche 76 | VSS — Ground reference |
| Broche 77 | RK0 — PORTK bit 0 |
| Broche 78 | RK1 — PORTK bit 1 |
| Broche 79 | RK2 — PORTK bit 2 |
| Broche 80 | RK3 — PORTK bit 3 |
Applications typiques
PIC18LF8525T-I/PT convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18LF8525T-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- 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))
Notes de conception
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.
Informations de conformité
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.