PIC18F6525-I/PT - 48KB Flash, 40MHz 8-bit MCU | Microchip
Référence : PIC18F6525-I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $9.5 | $9,50 |
| 10 | $8.55 | $85,50 |
| 100 | $7.6 | $760,00 |
| 500 | $6.85 | $3 425,00 |
| 1 000 | $6.1 | $6 100,00 |
PIC18F6525-I/PT Présentation
What is a PIC18 microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, peripheral interfaces (ADC, timers, UART, I2C, SPI), and general-purpose I/O onto one die. The PIC18 family is Microchip's high-performance 8-bit line, adding a 16-bit instruction word, hardware multiplier, C-friendly architecture, and enhanced flash with self-programmability on top of the baseline PIC16. PIC18F6525 sits in the upper memory tier of the 64/80-pin PIC18F6x2x/8x2x family, designed for embedded applications that need abundant I/O and A/D channels alongside sizeable code space.
Key features include 48KB of in-application self-programmable flash, 3840 bytes of data SRAM, 1024 bytes of EEPROM, a 10-bit A/D converter with up to 12 input channels, two analog comparators, two capture/compare/PWM modules, two USART modules, an SPI port, an I2C module (Master/Slave with 7-bit or 10-bit addressing), and a master SSP. The device supports ICD via two I/O pins and has four timer modules, including Timer1/Timer3 with optional external real-time clock operation.
Architecturally, the PIC18F6525 uses a Harvard architecture with a 16-bit instruction path fed from flash, paired with an 8-bit data path. The enhanced 16-bit instruction set targets efficient C compilation. With a 40 MHz oscillator (10 MIPS throughput), the core executes most instructions in one cycle and supports multiply and direct bit manipulation, making it well-suited to real-time control loops, sensor interfacing, and human-machine interface tasks.
Typical applications include industrial control panels, building automation, HVAC controllers, motor control front-ends, automotive body/comfort modules, security alarm panels, medical instrumentation, and general-purpose embedded systems requiring abundant I/O with on-chip A/D. The 64-pin TQFP footprint also makes it suitable for production designs where a smaller pin count MCU cannot provide the required connectivity.
When designing with the PIC18F6525, allocate the MCLR pin with a proper pull-up, provide adequate bulk and decoupling capacitance (typically 100 nF per supply pin and 10 uF at the regulator), and keep analog and digital traces separated for clean ADC readings. Programming is supported by MPLAB X IDE with the PICkit 5 in-circuit debugger or the MPLAB ICD programmers.
This page synthesizes distributor pricing, verified drop-in alternatives, application guidance, and parametric comparisons not consolidated on any single distributor page.
Alternatives de remplacement direct pour PIC18F6525-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 PIC18F6525-I/PT (même facteur de forme et même empreinte) — différant par Package, Timers, Operating Temperature, ADC, I/O Pins.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC18F6621-I/PT
✅ Remplacement direct✓ En stock
$8.15 / unité
Voir la fiche technique →PIC18F8525-I/PT
✅ Remplacement direct✓ En stock
$8.45 / unité
Voir la fiche technique →PIC18F4525-I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$4.18 / unité
Voir la fiche technique →PIC18F6520-I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$6.1 / unité
Voir la fiche technique →PIC18F8621-I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$12.4 / unité
Voir la fiche technique →PIC18F6525-I/PT Valeurs maximales et caractéristiques électriques
| Core | PIC18 8-bit RISC |
| Program Memory (Flash) | 48 KB (24K x 16) |
| Data SRAM | 3840 bytes |
| Data EEPROM | 1024 bytes |
| Fréquence d'horloge maximale | 40 MHz |
| Instruction Throughput | 10 MIPS |
| Tension d'alimentation | 4.2 V to 5.5 V |
| I/O Pins | 52 (digital) |
| ADC | 10-bit, 12 channels |
| Boîtier | TQFP-64 (10x10 mm, PT suffix) |
| Type de montage | Surface Mount |
| Température de fonctionnement | -40C to +85C (Industrial) |
| Temperature Grade | Industrial |
| Communication Interfaces | 2x USART, 1x SPI, 1x I2C (MSSP) |
| Timers | 4 (Timer0/1/2/3) |
| PWM Modules | 2 (CCP) |
| Comparators | 2 analog comparators |
| Statut RoHS | Compliant |
Guide de configuration des broches du PIC18F6525-I/PT tqfp-64 (10x10 mm, pt suffix)
Configuration des broches du PIC18F6525-I/PT (boîtier tqfp-64 (10x10 mm, pt suffix)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour PIC18F6525-I/PT.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
PIC18F6525-I/PT convient pour 6 applications: Industrial Control Panels, Building Automation / HVAC Controllers, Automotive Body / Comfort Modules, Security and Alarm Panels, Medical Instrumentation, Human-Machine Interface (HMI) Front-Ends.
Industrial Control Panels
The PIC18F6525-I/PT's 48 KB flash, 52 I/O pins, and 12-channel 10-bit ADC make it a strong fit for industrial control panels that aggregate digital inputs (limit switches, push-buttons), analog inputs (4-20 mA transducers via external conditioning), and relay/MOSFET outputs. Running at 40 MHz (10 MIPS), the MCU sustains real-time scan loops for ladder-logic runtimes or IEC 61131-3 style interpreters. The dual USART enables RS-485 multi-drop networks to remote I/O slices, while the MSSP drives I2C-based keypads, LED drivers, and EEPROM parameter storage. Industrial -40C to +85C temperature grade covers factory-floor deployment.
Recommandé
Building Automation / HVAC Controllers
The PIC18F6525-I/PT fits HVAC and building automation controllers that must monitor multiple temperature sensors, humidity probes, and pressure transducers while driving TRIAC-controlled fans, dampers, and compressor stages. Its 12 ADC channels read thermistor/4-20 mA loops directly, the dual USART bridges to BACnet or Modbus gateways, and the 48 KB flash accommodates scheduling logic and PID control loops. The industrial temperature grade handles rooftop equipment enclosures, while the 64-pin TQFP package leaves room for future feature additions (additional relays, sensors) within the same PCB footprint.
Recommandé
Automotive Body / Comfort Modules
The PIC18F6525-I/PT works well in automotive body and comfort modules (window lifters, seat controllers, mirror adjusters) where abundant I/O and modest computational load are required. With 52 digital I/O driving relays, H-bridges, and LED matrices, plus 12 ADC channels for current sensing, the MCU centralizes the comfort-domain logic. Dual USART interfaces to LIN/CAN transceivers or body controllers, while the MSSP manages SPI-based motor drivers. Designers should pair this part with automotive-grade peripherals and external watchdog supervisors, since PIC18F6525 is industrial-grade (-40C to +85C) rather than AEC-Q100 qualified.
Recommandé
Security and Alarm Panels
The PIC18F6525-I/PT is well-suited to multi-zone security and alarm panels that aggregate PIR motion sensors, magnetic door/window contacts, smoke detectors, and keypad/keyfob interfaces. Its 52 I/O scan the zone loops, the 12 ADC channels verify analog sensor health (smoke chamber baselines, PIR signal levels), and the 48 KB flash holds event logging, dialer protocols (Contact ID, SIA), and encrypted keyfob authentication routines. Dual USART bridges to GSM/4G modules or central monitoring receivers, while the MSSP drives I2C keypads and OLED displays. The 1024-byte EEPROM retains zone configuration and event history across power cycles.
Recommandé
Medical Instrumentation
The PIC18F6525-I/PT supports portable medical instrumentation such as blood-pressure monitors, pulse oximeters, and patient-bedside displays where reliable embedded control and modest signal processing are required. The 12-channel 10-bit ADC reads pulse-oximeter photodiode signals, pressure-sensor bridges, and battery monitoring channels, while the dual USART bridges to Bluetooth or USB-CDC bridges for clinician data export. The 48 KB flash runs main measurement algorithms and display state machines, and the industrial temperature grade handles clinical-environment operation. Note that medical designs still require IEC 60601-1 compliance at the system level, which the MCU alone does not provide.
Recommandé
Human-Machine Interface (HMI) Front-Ends
The PIC18F6525-I/PT drives HMI front-ends that combine a TFT/graphical LCD, multi-function keypad, and status LEDs in appliances, vending machines, or industrial operator panels. Its 52 I/O connect directly to key-scan matrices and LED drivers, the MSSP pushes pixel data to SPI-controlled TFT controllers, and 48 KB flash accommodates menu hierarchies and multi-language strings. The dual USART provides field-service debug port plus a host interface to the main controller. Industrial temperature grade and the 64-pin TQFP footprint make it a dependable UI brain for production runs of 5k+ units per year.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC18F6525-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC18F6621-I/PT | PIC18F8525-I/PT | PIC18F4525-I/PT | PIC18F6520-I/PT | PIC18F8621-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) - same | TQFP-80 - upgrade | TQFP-44 - downgrade | TQFP-64 (10x10 mm) - same | TQFP-80 - upgrade |
| Program Flash | 48 KB | 64 KB (+33%) | 48 KB (0%) | 48 KB (0%) | 32 KB (-33%) | 64 KB (+33%) |
| Data SRAM | 3840 bytes | 4096 bytes (+7%) | 3840 bytes (0%) | 3840 bytes (0%) | 2048 bytes (-47%) | 4096 bytes (+7%) |
| Data EEPROM | 1024 bytes | 1024 bytes (0%) | 1024 bytes (0%) | 1024 bytes (0%) | 1024 bytes (0%) | 1024 bytes (0%) |
| Maximum Clock | 40 MHz | 40 MHz (0%) | 40 MHz (0%) | 40 MHz (0%) | 40 MHz (0%) | 40 MHz (0%) |
| Digital I/O | 52 | 52 (0%) | 70 (+35%) | 36 (-31%) | 52 (0%) | 70 (+35%) |
| ADC Channels | 12 | 12 (0%) | 16 (+33%) | 13 (+8%) | 12 (0%) | 16 (+33%) |
| Supply 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 | 4.2 V to 5.5 V |
| Industrial Temp Grade | Yes (-40C to +85C) | Yes | Yes | Yes | Yes | Yes |
Principaux différenciateurs
- 52 I/O pins versus only 36 on PIC18F4525 (vs PIC18F4525-I/PT)
- 48 KB flash vs 32 KB on PIC18F6520 (vs PIC18F6520-I/PT)
- Industrial temperature grade -40C to +85C (vs PIC18F6621-E/PT (Extended grade))
- 12-channel 10-bit ADC integrated (vs PIC18F4525-I/PT (8-channel))
Notes de conception
Decouple VDD with a 100 nF ceramic capacitor on every supply pin pair and a single 10 uF bulk tantalum or ceramic cap near the MCU. The PIC18F6525-I/PT draws up to ~250 mA peak at 40 MHz with all peripherals active; ensure the 5V regulator has at least 1 A headroom. AVDD and AVSS should be tied to VDD/VSS with their own ferrite bead and 100 nF cap if ADC accuracy matters, and place the cap as close to pin 18/19 (AVDD/AVSS) as the layout allows.
MCLR must be pulled up to VDD through a 10 kohm resistor and decoupled with a 100 nF cap to VSS; floating MCLR causes erratic reset behavior and ICD programming failures. Configuration bits must be set explicitly in code (CONFIG1H through CONFIG4L) to avoid oscillator-source ambiguity. For ADC accuracy, ensure analog inputs have source impedance below 2.5 kohm and use the acquisition delay specified in the datasheet (typically 20 us for 10-bit mode at 40 MHz).
Route the 40 MHz crystal traces short and symmetric with a guard ground to minimize EMI and stray capacitance; for HS-mode crystals, add 22-33 pF loading caps to GND on each side of XTAL1/XTAL2. Place analog and digital sections on separate copper regions with a single-point ground tie at the MCU AVSS pin to prevent digital return currents from corrupting ADC readings. The 64-pin TQFP thermal pad (if used) should be soldered to a copper pour connected to GND for thermal relief at 40 MHz.
Reserve RB6 and RB7 (PGC/PGD) for in-circuit serial programming (ICSP) and route them to a 6-pin header with no series resistors in the signal path, since the PICkit 5 drives these lines directly. Provide a dedicated ICP or ICSP header on every board revision - even production units - because field firmware updates are nearly always required. Keep the trace lengths to RB6/RB7 under 50 mm and avoid stubs; otherwise, add 4.7 kohm pull-downs to keep the lines quiet in noisy environments.
Informations de conformité
RoHS and REACH compliant per Microchip product page. PIC18F6525-I/PT is industrial-grade (-40C to +85C) and not AEC-Q100 qualified; for AEC-Q100 automotive duty, select PIC18F6525 with -E (Extended) or -VAO suffixes only after confirming Microchip's automotive part list.
