PIC18LF6525T-I/PT - 8-Bit 40MHz MCU, 48KB Flash, TQFP-64 | Microchip
Teilenummer: PIC18LF6525T-I/PT ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $9.1 | $9,10 |
| 10 | $8.05 | $80,50 |
| 100 | $7.12 | $712,00 |
| 500 | $6.5 | $3.250,00 |
| 1.000 | $5.95 | $5.950,00 |
PIC18LF6525T-I/PT Übersicht
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), non-volatile storage (EEPROM), and a rich set of peripherals on one die. Within Microchip's taxonomy, the PIC18F family sits above the baseline PIC10/12/16 families in terms of performance and peripheral count - 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. PIC18F parts add hardware multiply, larger linear addressing, and C-friendly architecture optimized for mixed C/assembly firmware development.
Key features of the PIC18LF6525 include 54 digital I/O lines, up to twelve 10-bit ADC channels, two analog comparators, two USART modules, one MSSP (I2C/SPI) peripheral, two Capture/Compare/PWM (CCP) modules plus one Enhanced CCP (ECCP), a 16-bit timer with three 8-bit timers, an RTCC, and a parallel slave port for external bus expansion. The on-chip 10-bit ADC can reach 100 ksps and is supported by up to twelve input channels, which is sufficient for sensor interfaces in industrial and instrumentation systems.
Architecturally, the PIC18LF6525 uses a Harvard-class 8-bit RISC core with a 16-bit instruction word, an 8-level hardware stack, and a 31-level software-managed stack for high-level language support. The 4.2 V to 5.5 V range quoted on distributor pages reflects the parametric ADC specification; the device itself supports a wider operating voltage range down to 2.0 V. Low-power nanoWatt technology features include multiple idle and sleep modes, an ultra-low-power wake-up timer, and software-controlled oscillator switching.
Typical applications for the PIC18LF6525T-I/PT include industrial automation controllers, building HVAC and access-control panels, instrumentation front-ends with LCD/keypad interfaces, automotive body and chassis subsystems (non-safety), and consumer appliances requiring moderate Flash headroom (48 KB) and significant I/O count (54 lines). The combination of an 8-bit core with strong peripherals makes it well-suited for legacy firmware migration onto a stable, long-life Microchip platform.
Designers should note that the LF variants add voltage-minimum operation down to 2.0 V, which is essential for battery-backed designs; when migrating between PIC18F6525 and PIC18LF6525 always confirm the brown-out reset voltage and the ADC reference selection. The parallel slave port allows direct connection to an external host CPU for use as a peripheral co-processor, and the large pin count (TQFP-64) provides ample I/O for keypad scanning and character LCD drives.
Drop-in-Alternativen für PIC18LF6525T-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 PIC18LF6525T-I/PT (gleiche Bauform und Footprint) – abweichend in Package, Timers, ADC, Core Architecture, Program Memory (Flash).
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC18LF6520T-I/PT
✅ Drop-In✓ Auf Lager
$5.25 / Stück
Datenblatt ansehen →PIC18F6627T-I/PT
✅ Drop-In✓ Auf Lager
$6.42 / Stück
Datenblatt ansehen →PIC18F6622T-I/PT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC18LF6722T-I/PT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC18F8722T-I/PT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC18LF6525T-I/PT Grenzwerte & elektrische Eigenschaften
| Core Architecture | 8-bit PIC18F RISC |
| Program Memory (Flash) | 48 KB (24K x 16 words) |
| SRAM | 3.8 KB (3840 bytes) |
| EEPROM | 1 KB |
| Maximum Clock Speed | 40 MHz |
| Supply Voltage Range | 2.0 V to 5.5 V (LF); ADC spec 4.2 V to 5.5 V |
| I/O Pins | 54 |
| ADC | 10-bit, up to 12 channels |
| Timers | 1 x 16-bit + 3 x 8-bit |
| CCP/ECCP Modules | 2 CCP + 1 ECCP |
| Communication Peripherals | 2 x USART, 1 x MSSP (I2C/SPI) |
| Analog Comparators | 2 |
| Parallel Slave Port | Yes |
| Gehäuse | TQFP-64 (10 x 10 mm, 1.0 mm pitch) |
| Betriebstemperatur | -40C to +85C (industrial) |
| Montageart | Surface Mount |
| MSL-Level | 3 (168 hours) |
| RoHS-Status | Compliant |
| Lead-Free | Yes |
PIC18LF6525T-I/PT Pin-Konfiguration
| Pin 1 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pin 2 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pin 3 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Pin 4 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC VREF+ |
| Pin 5 | RA4/AN4/T0CKI — PORTA bit 4 / analog input 4 / Timer0 clock |
| Pin 6 | RA5/AN5/SS/LVDIN — PORTA bit 5 / analog input 5 / SPI slave select / LVD input |
| Pin 7 | RA6 — PORTA bit 6 / oscillator output |
| Pin 8 | RA7 — PORTA bit 7 / oscillator input |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply (2.0 V to 5.5 V) |
| Pin 11 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| Pin 12 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Pin 13 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| Pin 14 | RB3/INT3 — PORTB bit 3 / external interrupt 3 |
| Pin 15 | RB4 — PORTB bit 4 |
| Pin 16 | RB5 — PORTB bit 5 |
| Pin 17 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pin 18 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply (2.0 V to 5.5 V) |
| Pin 21 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / clock in |
| Pin 22 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 |
| Pin 23 | RC2/CCP1 — PORTC bit 2 / CCP1 |
| Pin 24 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 25 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 26 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 27 | RC6/TX1/CK1 — PORTC bit 6 / USART1 TX / clock |
| Pin 28 | RC7/RX1/DT1 — PORTC bit 7 / USART1 RX / data |
| Pin 29 | VSS — Ground reference |
| Pin 30 | VDD — Positive supply (2.0 V to 5.5 V) |
| Pin 31 | RD0/PSP0 — PORTD bit 0 / parallel slave port D0 |
| Pin 32 | RD1/PSP1 — PORTD bit 1 / parallel slave port D1 |
| Pin 33 | RD2/PSP2 — PORTD bit 2 / parallel slave port D2 |
| Pin 34 | RD3/PSP3 — PORTD bit 3 / parallel slave port D3 |
| Pin 35 | RD4/PSP4 — PORTD bit 4 / parallel slave port D4 |
| Pin 36 | RD5/PSP5 — PORTD bit 5 / parallel slave port D5 |
| Pin 37 | RD6/PSP6 — PORTD bit 6 / parallel slave port D6 |
| Pin 38 | RD7/PSP7 — PORTD bit 7 / parallel slave port D7 |
| Pin 39 | VSS — Ground reference |
| Pin 40 | VDD — Positive supply (2.0 V to 5.5 V) |
| Pin 41 | RE0/RD/AN6 — PORTE bit 0 / PSP read strobe / analog 6 |
| Pin 42 | RE1/WR/AN7 — PORTE bit 1 / PSP write strobe / analog 7 |
| Pin 43 | RE2/CS/AN8 — PORTE bit 2 / PSP chip select / analog 8 |
| Pin 44 | RE3 — PORTE bit 3 (input only) |
| Pin 45 | RE4 — PORTE bit 4 (input only) |
| Pin 46 | RE5 — PORTE bit 5 (input only) |
| Pin 47 | RE6 — PORTE bit 6 (input only) |
| Pin 48 | RE7 — PORTE bit 7 (input only) |
| Pin 49 | RF0 — PORTF bit 0 |
| Pin 50 | RF1 — PORTF bit 1 |
| Pin 51 | RF2 — PORTF bit 2 |
| Pin 52 | RF3 — PORTF bit 3 |
| Pin 53 | RF4 — PORTF bit 4 |
| Pin 54 | RF5 — PORTF bit 5 |
| Pin 55 | RF6 — PORTF bit 6 |
| Pin 56 | RF7 — PORTF bit 7 |
| Pin 57 | RG0 — PORTG bit 0 |
| Pin 58 | RG1 — PORTG bit 1 |
| Pin 59 | RG2 — PORTG bit 2 |
| Pin 60 | RG3 — PORTG bit 3 |
| Pin 61 | RG4 — PORTG bit 4 |
| Pin 62 | OSC1 — Crystal oscillator input |
| Pin 63 | OSC2 — Crystal oscillator output |
| Pin 64 | MCLR — Master clear reset (active low) |
Typische Anwendungen
PIC18LF6525T-I/PT ist geeignet für 6 Anwendungs: Industrial Automation Controller, Building HVAC and Access Control Panels, Instrumentation Front-End with LCD/Keypad, Consumer Appliance Main Controller, Automotive Body and Chassis Subsystem, Peripheral Co-Processor via Parallel Slave Port.
Industrial Automation Controller
The PIC18LF6525T-I/PT is well suited for industrial automation PLCs and I/O modules because of its 54 I/O lines, two USART modules (often used for RS-485 Modbus RTU masters or slaves), and the parallel slave port for host-CPU offload. Its 48 KB Flash gives ample headroom for ladder-logic interpreters or state-machine firmware, while the 3.8 KB SRAM supports Modbus frame buffers and PID loop variables. The 10-bit ADC with 12 channels handles analog sensor inputs (4-20 mA, 0-10 V) directly. The LF 2.0 V-5.5 V range accommodates both 24 V-derived 3.3 V rails and battery-backed logic. Compared with newer PIC18FxxK42 parts, this device remains attractive where firmware legacy and long-term supply are critical.
Empfohlen
Building HVAC and Access Control Panels
HVAC controllers and access-control panels need many digital I/O for relay drivers, keypad scanning, and character LCDs - exactly the use case the PIC18LF6525T-I/PT addresses with 54 I/O, the parallel slave port for a co-processor, and an ECCP module for triac-fired PWM heater control. The 10-bit ADC reads thermistor inputs, while the two analog comparators handle zero-crossing detection for AC line sync. The 48 KB Flash accommodates menu-driven UI code, schedule storage in 1 KB EEPROM, and Modbus RTU or BACnet MS/TP stacks. The industrial -40C to +85C range supports rooftop and unconditioned-space installations. Low-power nanoWatt idle modes keep standby current below 1 mA for battery-backed RTC operation.
Empfohlen
Instrumentation Front-End with LCD/Keypad
Bench instruments (digital multimeters, process calibrators, lab power supplies) benefit from the PIC18LF6525T-I/PT's combination of a 10-bit ADC, two analog comparators, and abundant I/O for keypad matrix, character LCD, rotary encoder, and buzzer drive. The 48 KB Flash hosts menu systems and calibration tables stored in the 1 KB EEPROM. Two USARTs can drive a front-panel USB-to-UART bridge plus a second isolated RS-485 port for SCPI command parsing. The LF variant's 2.0 V minimum is useful for single-cell Li-ion powered handhelds. The ECCP module can generate PWM excitation for ratiometric sensor bridges, while the parallel slave port enables a host FPGA for high-speed data acquisition.
Empfohlen
Consumer Appliance Main Controller
Major appliances (washing machines, dishwashers, refrigerators) use an 8-bit MCU to drive user interfaces, motor control PWM, and sensor inputs - the PIC18LF6525T-I/PT fits with its ECCP for motor control, 12 ADC channels for temperature and water-level sensing, and 54 I/O for keypad, LCD, buzzer, and relay banks. The 48 KB Flash holds state-machine firmware with fault diagnostics, while the 1 KB EEPROM stores user settings through power cycles. Two USARTs support diagnostic ports and Bluetooth/wifi module bridges. The industrial temperature grade and RoHS compliance satisfy appliance certification requirements, and the long-life Microchip product cycle (active since early 2000s) gives designers multi-decade supply assurance.
Empfohlen
Automotive Body and Chassis Subsystem
Non-safety body-electronics modules (mirror controllers, seat-position memory, lighting controllers) commonly use the PIC18LF6525T-I/PT thanks to its 54 I/O, ECCP PWM for lighting fade, and 10-bit ADC for current sensing. The industrial temperature grade meets most cabin requirements, though for under-hood AEC-Q100 qualified designs the automotive-grade PIC18F alternatives should be selected. The 48 KB Flash hosts CAN-friendly state machines and diagnostic firmware; for native CAN support, designers move to the PIC18F4685 family. The parallel slave port allows pairing with an external graphics or communication co-processor. Multiple communication peripherals support LIN via UART plus external transceiver.
Empfohlen
Peripheral Co-Processor via Parallel Slave Port
The PIC18LF6525T-I/PT can offload real-time I/O, keypad scanning, or PWM generation from a host CPU or FPGA through its parallel slave port (PSP). The host writes control registers and reads status over the 8-bit data bus using RD, WR, and CS lines, freeing the main processor from bit-banging I/O. The MCU's 48 KB Flash and 3.8 KB SRAM allow local firmware with command queues, while the 10-bit ADC provides analog monitoring. Two USARTs and one MSSP can serve as bridges to RS-485 Modbus slaves, I2C sensors, or SPI peripherals. The LF 2.0 V-5.5 V operation interfaces directly with 3.3 V FPGAs and ASICs. Designers typically connect the PSP to an FPGA EMIF or a higher-end MCU's external bus interface.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC18LF6525T-I/PT – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC18LF6520T-I/PT | PIC18F6627T-I/PT | PIC18F6622T-I/PT | PIC18LF6722T-I/PT | PIC18F8722T-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-64 (10 x 10 mm) | TQFP-64 - same | TQFP-64 - same | TQFP-64 - same | TQFP-64 - same | TQFP-64 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 48 KB | 32 KB | 96 KB | 64 KB | 128 KB | 128 KB |
| RAM | 3.8 KB | 2 KB | 3.8 KB | 3.8 KB | 3.8 KB | 3.8 KB |
| EEPROM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Maximum Clock Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Supply Voltage Range | 2.0 V to 5.5 V (LF) | 2.0 V to 5.5 V (LF) | 4.2 V to 5.5 V (F) | 4.2 V to 5.5 V (F) | 2.0 V to 5.5 V (LF) | 4.2 V to 5.5 V (F) |
| I/O Pins | 54 | 54 | 54 | 54 | 54 | 70 |
| ADC Resolution / Channels | 10-bit / 12 ch | 10-bit / 12 ch | 10-bit / 12 ch | 10-bit / 12 ch | 10-bit / 12 ch | 10-bit / 16 ch |
Wichtigste Unterscheidungsmerkmale
- Extended 2.0 V minimum supply voltage (LF variant) (vs. PIC18F6627T-I/PT)
- Balanced Flash footprint (48 KB) for cost-optimized designs (vs. PIC18LF6520T-I/PT)
- Parallel Slave Port for host-CPU co-processing (vs. PIC18LF6722T-I/PT)
Designhinweise
The PIC18LF6525 supports 2.0 V to 5.5 V operation but the ADC parametric specification is 4.2 V to 5.5 V. Estimated: when running the ADC at lower voltages, VREF must come from the internal band-gap or an external reference; ADC accuracy will degrade. Use a 100 nF decoupling capacitor on each VDD pin pair plus a single 10 uF bulk capacitor near the MCU. The nanoWatt technology idle and sleep modes can reduce quiescent current to single-digit microamperes when the application does not require the ADC active.
TQFP-64 has 0.5 mm lead pitch - place the part on a 4-layer PCB with at least one solid ground plane under the package to provide thermal spreading and reference for the analog inputs. Keep the crystal oscillator traces within 5 mm of the OSC1/OSC2 pins and surround them with a ground pour. Place the ICSP PGC/PGD traces (RB6/RB7) so that an in-circuit programming header can be reached without crossing the analog input area. The parallel slave port pins (RD0-RD7, RE0-RE2) should be routed as an 8-bit bus with matched lengths if connected to an external FPGA or DSP host.
Migrating between PIC18F6525 (F-variant, 4.2 V minimum) and PIC18LF6525 (LF-variant, 2.0 V minimum) without re-validating the brown-out reset and ADC reference settings will cause field failures on brown-out. Always confirm the CONFIG3L register setting when porting firmware between F and LF variants. Also note that the parallel slave port (PSP) is mutually exclusive with the JTAG boundary scan on some PIC18F parts - disable JTAG in CONFIG to free the PSP. The TQFP-64 footprint has a center thermal pad on some variants - check the package drawing before designing the land pattern.
At industrial temperature range (-40C to +85C), the PIC18LF6525 in TQFP-64 (theta_JA approximately 50-60 C/W on a standard 4-layer JEDEC test board) can dissipate up to 1 W at room temperature without additional cooling. Estimated: at 40 MHz operation, the core current draw is roughly 15-20 mA at 5 V and 8-12 mA at 3.3 V, so thermal management is rarely a constraint. Designers running the parallel slave port bus at high speed or driving many GPIO simultaneously should check the absolute maximum supply current specification in DS39646F.
Compliance-Informationen
RoHS compliant per Microchip product environmental declaration. Lead-free /PT package code confirms lead-free terminal finish. Halogen-free per Microchip material declaration. Industrial temperature grade - not AEC-Q100 qualified; for automotive applications select the automotive-grade PIC18F alternative.
