PIC18LF8525T-I/PT - 8-bit 40MHz MCU, 48KB Flash, TQFP-80 | Microchip
Teilenummer: PIC18LF8525T-I/PT ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 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 Übersicht
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.
Drop-in-Alternativen für PIC18LF8525T-I/PT – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC18LF8525T-I/PT (gleiche Bauform und Footprint) – abweichend in ADC, Operating Temperature, Package, Core, Supply Voltage (VDD).
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC18LF8525-I/PT
✅ Drop-In✓ Auf Lager
$5.48 / Stück
Datenblatt ansehen →PIC18LF8522T-I/PT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC18LF6722T-I/PT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC18F8525-I/PT
✅ Drop-In✓ Auf Lager
$8.45 / Stück
Datenblatt ansehen →PIC18F8722-I/PT
✅ Drop-In✓ Auf Lager
$6.5 / Stück
Datenblatt ansehen →PIC18LF8525T-I/PT Grenzwerte & elektrische Eigenschaften
| 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 |
| Gehäuse | TQFP-80 (PT), 12x12 mm |
| Montageart | Surface Mount |
| Betriebstemperatur | -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 |
| MSL-Level | 3 (per JEDEC J-STD-020) |
| RoHS-Status | Compliant |
| Packaging Format | Tape and Reel |
PIC18LF8525T-I/PT Pin-Konfiguration
| Pin 1 | MCLR — Master Clear (reset) input, active low; tie to VDD through 10 kOhm |
| Pin 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pin 4 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / ADC VREF- |
| Pin 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC VREF+ |
| Pin 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin 7 | RA5/AN4 — PORTA bit 5 / analog input 4 |
| Pin 8 | RE0/RD — PORTE bit 0 / parallel-port read strobe |
| Pin 9 | RE1/WR — PORTE bit 1 / parallel-port write strobe |
| Pin 10 | RE2/CS — PORTE bit 2 / parallel-port chip-select |
| Pin 11 | VDD — Positive supply (2.0 V to 5.5 V) |
| Pin 12 | VSS — Ground reference |
| Pin 13 | OSC1/CLKIN — Crystal oscillator input / external clock in |
| Pin 14 | OSC2/CLKOUT — Crystal oscillator output / clock out |
| Pin 15 | RC0/T1OSO/T13CKI — PORTC bit 0 / Timer1 oscillator output |
| Pin 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| Pin 17 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM 1 |
| Pin 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 19 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 20 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 21 | RC6/TX/CK — PORTC bit 6 / USART async TX / sync clock |
| Pin 22 | RC7/RX/DT — PORTC bit 7 / USART async RX / sync data |
| Pin 23 | RD0/PSP0 — PORTD bit 0 / parallel slave port data |
| Pin 24 | RD1/PSP1 — PORTD bit 1 / parallel slave port data |
| Pin 25 | RD2/PSP2 — PORTD bit 2 / parallel slave port data |
| Pin 26 | RD3/PSP3 — PORTD bit 3 / parallel slave port data |
| Pin 27 | RD4/PSP4 — PORTD bit 4 / parallel slave port data |
| Pin 28 | RD5/PSP5 — PORTD bit 5 / parallel slave port data |
| Pin 29 | RD6/PSP6 — PORTD bit 6 / parallel slave port data |
| Pin 30 | RD7/PSP7 — PORTD bit 7 / parallel slave port data |
| Pin 31 | VSS — Ground reference |
| Pin 32 | VDD — Positive supply (2.0 V to 5.5 V) |
| Pin 33 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| Pin 34 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Pin 35 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| Pin 36 | RB3/INT3 — PORTB bit 3 / external interrupt 3 |
| Pin 37 | RB4 — PORTB bit 4 / IOC |
| Pin 38 | RB5 — PORTB bit 5 / IOC |
| Pin 39 | RB6/PGC — PORTB bit 6 / ICSP clock / IOC |
| Pin 40 | RB7/PGD — PORTB bit 7 / ICSP data / IOC |
| Pin 41 | AVDD — Analog supply (tie to VDD) |
| Pin 42 | AVSS — Analog ground (tie to VSS) |
| Pin 43 | RF0/AN5 — PORTF bit 0 / analog input 5 |
| Pin 44 | RF1/AN6 — PORTF bit 1 / analog input 6 |
| Pin 45 | RF2/AN7 — PORTF bit 2 / analog input 7 |
| Pin 46 | RF3/AN8 — PORTF bit 3 / analog input 8 |
| Pin 47 | RF4/AN9 — PORTF bit 4 / analog input 9 |
| Pin 48 | RF5/AN10/CVREF — PORTF bit 5 / analog input 10 / comparator VREF |
| Pin 49 | RF6/AN11 — PORTF bit 6 / analog input 11 |
| Pin 50 | RF7 — PORTF bit 7 |
| Pin 51 | RG0 — PORTG bit 0 |
| Pin 52 | RG1 — PORTG bit 1 |
| Pin 53 | RG2 — PORTG bit 2 |
| Pin 54 | RG3 — PORTG bit 3 |
| Pin 55 | RG4 — PORTG bit 4 |
| Pin 56 | RG5 — PORTG bit 5 |
| Pin 57 | RG6 — PORTG bit 6 |
| Pin 58 | RG7 — PORTG bit 7 |
| Pin 59 | RH0 — PORTH bit 0 |
| Pin 60 | RH1 — PORTH bit 1 |
| Pin 61 | RH2 — PORTH bit 2 |
| Pin 62 | RH3 — PORTH bit 3 |
| Pin 63 | RH4 — PORTH bit 4 |
| Pin 64 | RH5 — PORTH bit 5 |
| Pin 65 | RH6 — PORTH bit 6 |
| Pin 66 | RH7 — PORTH bit 7 |
| Pin 67 | RJ0 — PORTJ bit 0 |
| Pin 68 | RJ1 — PORTJ bit 1 |
| Pin 69 | RJ2 — PORTJ bit 2 |
| Pin 70 | RJ3 — PORTJ bit 3 |
| Pin 71 | RJ4 — PORTJ bit 4 |
| Pin 72 | RJ5 — PORTJ bit 5 |
| Pin 73 | RJ6 — PORTJ bit 6 |
| Pin 74 | RJ7 — PORTJ bit 7 |
| Pin 75 | VDD — Positive supply (2.0 V to 5.5 V) |
| Pin 76 | VSS — Ground reference |
| Pin 77 | RK0 — PORTK bit 0 |
| Pin 78 | RK1 — PORTK bit 1 |
| Pin 79 | RK2 — PORTK bit 2 |
| Pin 80 | RK3 — PORTK bit 3 |
Typische Anwendungen
PIC18LF8525T-I/PT ist geeignet für 6 Anwendungs: 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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC18LF8525T-I/PT – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | 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 |
Wichtigste Unterscheidungsmerkmale
- 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))
Designhinweise
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.
Compliance-Informationen
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.