PIC18F6525-E/PT - 48KB Flash 8-bit MCU 64-TQFP | Microchip
MPN: PIC18F6525-E/PT ✓ فعالPIC18F6525-E/PT جائزہ
A PIC18F microcontroller is a member of Microchip's PIC18 family of 8-bit RISC microcontrollers - the architectural evolution of the PIC16 line that adds a 16-bit instruction word, hardware multiply, and C-optimized architecture while retaining the classic PIC register model. PIC18 devices sit above PIC16/12 in the 8-bit MCU hierarchy (PIC10/12/16/18 -> 8-bit MCU -> microcontroller -> embedded IC) and are widely used where deterministic interrupt response and small code size matter more than raw MHz.
Key features include 52 digital I/O pins, a 12-channel 10-bit ADC with 16K sample-and-hold, two USART modules, one MSSP (SPI/I2C), two CCP/ECCP modules, two 8-bit timers plus three 16-bit timers, a 16-bit wide instruction set, and ICD (In-Circuit Debug) support. The 64-TQFP (10x10 mm) package exposes more I/O than 40/44-pin siblings while keeping a familiar PIC18 peripheral set.
Architecturally, the PIC18F6525 uses a 16-bit modified Harvard core with separate program and data paths, allowing the CPU to fetch a 16-bit instruction while reading a data byte in the same cycle. The 'enhanced' flash supports >100k erase/write cycles typical and is self-programmable under firmware control, enabling field updates via bootloader.
Typical applications include industrial control (PLCs, sensor hubs, motor drivers), automotive body/chassis ECUs (with -E temp grade), home appliances (white goods, HVAC), embedded HMI with character LCD or graphic panels, USB/serial converter bridges using the USART/MSSP, and CAN/lin gateways (paired with external transceivers).
When designing with this part, reserve pin RE3/MCLR as a true reset input with the standard 10k pull-up; on the PIC18F65xx family RE3 is input-only on most parts. Also confirm VDDCORE decoupling - the device has separate AVdd/Vdd pairs that should each have a 0.1uF + bulk cap.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers shorten the BOM-selection cycle from days to minutes.
کے لیے ڈراپ اِن متبادل PIC18F6525-E/PT — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC18F6525-E/PT (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Core Architecture, Operating Temperature, Package, Timers, ADC.
PIC18F6621-I/PT
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC18F6520-I/PT
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC18F6525-E/PT زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC18 8-bit RISC (16-bit instruction word) |
| Program Memory (Flash) | 48 KB (24K x 16) |
| Data RAM | 3840 bytes |
| Max CPU Speed | 40 MHz (10 MIPS) |
| Operating Voltage (Vdd) | 4.2 V to 5.5 V |
| I/O Pins | 52 |
| ADC | 10-bit, 12 channels (approximately - confirm datasheet) |
| Timers | 2x 8-bit + 3x 16-bit |
| Capture/Compare/PWM | 2 CCP + 1 ECCP |
| Serial Interfaces | 2x USART (EUSART), 1x MSSP (SPI/I2C) |
| پیکیج | 64-pin TQFP (PT) 10x10 mm |
| آپریٹنگ درجہ حرارت | -40C to +125C (extended, -E suffix) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| In-Circuit Debug | ICSP / ICD 2/3 |
| RoHS اسٹیٹس | Compliant |
PIC18F6525-E/PT پن کنفیگریشن
| پن 1 | MCLR/RE3 — Master Clear (reset) input / PORTE bit 3 (input only on most variants) |
| پن 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| پن 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| پن 4 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / ADC VREF- |
| پن 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC VREF+ |
| پن 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| پن 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| پن 8 | RE0/RD/AN5 — PORTE bit 0 / parallel port read / AN5 |
| پن 9 | RE1/WR/AN6 — PORTE bit 1 / parallel port write / AN6 |
| پن 10 | RE2/CS/AN7 — PORTE bit 2 / parallel port chip select / AN7 |
| پن 11 | VDD — Digital supply (4.2V to 5.5V) |
| پن 12 | VSS — Digital ground |
| پن 13 | OSC1/CLKI/RA7 — Crystal input / external clock / PORTA bit 7 |
| پن 14 | OSC2/CLKO/RA6 — Crystal output / clock output / PORTA bit 6 |
| پن 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock |
| پن 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| پن 17 | RC2/CCP1 — PORTC bit 2 / CCP1 |
| پن 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| پن 19 | RD0/PSP0/C1IN+ — PORTD bit 0 / parallel slave port / comparator 1 input |
| پن 20 | RD1/PSP1/C1IN- — PORTD bit 1 / parallel slave port / comparator 1 input |
| پن 21 | RD2/PSP2/C2IN+ — PORTD bit 2 / parallel slave port / comparator 2 input |
| پن 22 | RD3/PSP3/C2IN- — PORTD bit 3 / parallel slave port / comparator 2 input |
| پن 23 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| پن 24 | RC5/SDO — PORTC bit 5 / SPI data out |
| پن 25 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| پن 26 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| پن 27 | RD4/PSP4/ECCP1/P1A — PORTD bit 4 / parallel slave port / ECCP1 / PWM output A |
| پن 28 | RD5/PSP5/P1B — PORTD bit 5 / parallel slave port / ECCP1 PWM output B |
| پن 29 | RD6/PSP6/P1C — PORTD bit 6 / parallel slave port / ECCP1 PWM output C |
| پن 30 | RD7/PSP7/P1D — PORTD bit 7 / parallel slave port / ECCP1 PWM output D |
| پن 31 | VSS — Digital ground |
| پن 32 | VDD — Digital supply (4.2V to 5.5V) |
| پن 33 | RB0/INT0/FLT0 — PORTB bit 0 / external interrupt 0 / ECCP fault input |
| پن 34 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| پن 35 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| پن 36 | RB3/INT3/CCP2A — PORTB bit 3 / external interrupt 3 / CCP2 alternate |
| پن 37 | RB4/KBI0 — PORTB bit 4 / interrupt-on-change bit 0 |
| پن 38 | RB5/KBI1 — PORTB bit 5 / interrupt-on-change bit 1 |
| پن 39 | RB6/KBI2/PGC — PORTB bit 6 / interrupt-on-change bit 2 / ICD clock |
| پن 40 | RB7/KBI3/PGD — PORTB bit 7 / interrupt-on-change bit 3 / ICD data |
| پن 41 | AVDD — Analog supply (tie to VDD via ferrite) |
| پن 42 | AVSS — Analog ground |
| پن 43 | RF0/AN8 — PORTF bit 0 / analog input 8 |
| پن 44 | RF1/AN9/C2OUT — PORTF bit 1 / analog input 9 / comparator 2 output |
| پن 45 | RF2/AN10/C1OUT — PORTF bit 2 / analog input 10 / comparator 1 output |
| پن 46 | RF3/AN11 — PORTF bit 3 / analog input 11 |
| پن 47 | RF4/AN12 — PORTF bit 4 / analog input 12 |
| پن 48 | RF5/AN13 — PORTF bit 5 / analog input 13 |
| پن 49 | RF6/AN14 — PORTF bit 6 / analog input 14 |
| پن 50 | RF7/AN15 — PORTF bit 7 / analog input 15 |
| پن 51 | RG0 — PORTG bit 0 |
| پن 52 | RG1 — PORTG bit 1 |
| پن 53 | RG2 — PORTG bit 2 |
| پن 54 | RG3 — PORTG bit 3 |
| پن 55 | RG4 — PORTG bit 4 |
| پن 56 | RG5 — PORTG bit 5 (no connect on 64-pin variant) |
| پن 57 | RH0 — PORTH bit 0 (no connect on 64-pin variant) |
| پن 58 | RH1 — PORTH bit 1 (no connect on 64-pin variant) |
| پن 59 | RH2 — PORTH bit 2 (no connect on 64-pin variant) |
| پن 60 | RH3 — PORTH bit 3 (no connect on 64-pin variant) |
| پن 61 | RH4 — PORTH bit 4 (no connect on 64-pin variant) |
| پن 62 | RH5 — PORTH bit 5 (no connect on 64-pin variant) |
| پن 63 | RH6 — PORTH bit 6 (no connect on 64-pin variant) |
| پن 64 | RH7 — PORTH bit 7 (no connect on 64-pin variant) |
عام استعمالات
PIC18F6525-E/PT کے لیے موزوں ہے 7 ایپلیکیشنs: Industrial Control / PLC Module, Automotive Body Electronics ECU, Home Appliance / White Goods Control, Embedded HMI / LCD Terminal, Sensor Hub / Data Logger, USB/Serial Bridge and Protocol Converter, Motor Control / Stepper Driver.
Industrial Control / PLC Module
The PIC18F6525-E/PT fits industrial PLC and sensor-hub modules because of its 52 I/O on a 64-TQFP footprint, 10 MIPS throughput at 40 MHz, and extended -40C to +125C temperature rating. Its 3840 bytes RAM is enough to host a Modbus RTU slave buffer (256-byte PDU plus framing) alongside a 4x20 character LCD driver and a 1 kHz PID loop tick without DMA contention. The 12-channel 10-bit ADC reads thermocouple amplifiers or 4-20 mA loops through external shunt resistors with simultaneous sampling via CCP-triggered conversions, while the two EUSARTs bridge RS-485 to a HMI panel and RS-232 to a configuration port. Use the MSSP in SPI mode to drive isolated digital outputs (e.g., CPC5001 solid-state relays) for actuator switching. Recommended: pair with MAX485 for RS-485 and MCP1700 for 3V3 sensor rail.
تجویز کردہ
Automotive Body Electronics ECU
The PIC18F6525-E/PT is widely deployed in automotive body and chassis ECUs (window lifters, seat controllers, HVAC flaps, lighting modules) thanks to its 5V-native I/O tolerant of 12V battery transients via external TVS clamps and the extended -40C to +125C temperature grade matching cabin and underhood thermal envelopes. Its 2 EUSARTs implement LIN bus via a LIN SBC such as TJA1027 or MCP2021, while the 1 MSSP drives an SPI-controlled stepper driver for HVAC damper motors. PWM via the ECCP module generates brushed DC motor speed control with hardware dead-band insertion. Note: -E grade is NOT AEC-Q100 - for safety-critical designs (airbag, ABS, EPS) use the AEC-Q100-qualified PIC18F K-series or dsPIC33 variants. Recommended companion parts: MCP2021 LIN SBC, TLE4271 5V LDO.
تجویز کردہ
Home Appliance / White Goods Control
The PIC18F6525-E/PT is a strong fit for white-goods controllers (washing machines, dishwashers, refrigerators, induction cooktops) where 5V-tolerant I/O drives triac optocouplers directly and the 64-TQFP exposes enough I/O for keypad scanning, LCD/LED display multiplexing, and motor encoder feedback. Its 3840 RAM buffers wash-cycle state machines, while 48 KB flash holds state-flow firmware plus a bootloader for OTA field updates. Hardware CCP modules generate zero-crossing synchronized triac pulses for heater banks and motor phase control. The PIC18F6525-E/PT's nanoWatt technology provides sleep currents under 1 uA for battery-backed appliance clocks. Pair with MOC3021 triac drivers and a character LCD module for user interface. Recommended companion parts: MOC3021, ULN2003, character LCD.
تجویز کردہ
Embedded HMI / LCD Terminal
The PIC18F6525-E/PT drives character LCDs (16x2 to 40x4) and small graphic panels (128x64 KS0108) directly via its 52 I/O and 3840 RAM, providing 8-bit data bus plus 6 control lines plus 4-8 keypad matrix rows. Its 40 MHz throughput keeps redraw latencies under 16 ms for 128x64 panels at 50% screen refresh, sufficient for menu navigation. The 2 CCP/ECCP modules can generate audio tones or backlight PWM dimming simultaneously with LCD refresh, sharing CPU time without contention thanks to the PIC18's deterministic 2-cycle interrupt latency. Use the MSSP in SPI mode to drive an external SD card for font/log storage; 48 KB flash is enough for menu tree plus custom font tables. Pair with HD44780 LCD or KS0108 graphic controller.
تجویز کردہ
Sensor Hub / Data Logger
The PIC18F6525-E/PT is well-suited as a sensor-hub or data-logger controller in environmental monitoring, building automation, and industrial telemetry. Its 12-channel 10-bit ADC reads thermocouples, RTDs, and 4-20 mA loops via external signal conditioning, while the MSSP in I2C mode scans a digital sensor bus (SHT31 humidity, BMP280 pressure, MAX31855 thermocouple) at 400 kHz. The 3840 RAM buffers sample frames (typically 64 bytes per sample x 30 samples per burst) before flushing to SPI flash or SD card. The 2 EUSARTs publish data over RS-485 Modbus and a debug console simultaneously. Use ECCP to generate a 1-second RTC tick from a 32.768 kHz crystal, eliminating an external RTC chip. Pair with MAX31855 thermocouple ADC and SHT31 humidity sensor.
تجویز کردہ
USB/Serial Bridge and Protocol Converter
The PIC18F6525-E/PT serves as a USB-to-UART, USB-to-I2C, or USB-to-SPI bridge when paired with a USB3300 ULPI PHY or - more commonly - the MCP2200 USB-to-UART chip. Its 48 KB flash easily hosts CDC ACM USB stacks, vendor-class firmware, or custom protocols (Modbus, NMEA 0183, DMX-512) at 12 Mbps full-speed USB. The 2 EUSARTs enable dual-bus protocol conversion (e.g., RS-485 to SPI gateway), and the MSSP handles I2C/SPI master duties for downstream peripherals. The -E temperature grade supports industrial cabinets. Note: the PIC18F6525 does NOT have native USB - for true single-chip USB consider PIC18F4455/4550 with integrated USB 2.0 FS. Recommended companion parts: MCP2200 (USB-UART bridge), FT230X (USB-UART alternative).
تجویز کردہ
Motor Control / Stepper Driver
The PIC18F6525-E/PT controls stepper motors (via external DRV8825 or A4988 drivers), brushed DC motors (via H-bridge drivers like L298N or DRV8871), and BLDC motors (with external 3-phase gate drivers). Its 3x 16-bit timers and 2 CCP + 1 ECCP generate precise step pulses up to 200 kHz with hardware acceleration/deceleration ramps stored in RAM. The 52 I/O accommodate encoder inputs (A/B/index), enable signals, fault feedback, and current sensing via the 10-bit ADC. The extended -40C to +125C temperature range suits industrial motor enclosures. Pair with DRV8825 stepper driver, A4988 alternative, or DRV8871 brushed DC driver for closed-loop current control with the ADC.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC18F6525-E/PT — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC18F6621-I/PT | PIC18F6520-I/PT |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (PT) 10x10 mm | 64-TQFP (PT) 10x10 mm | 64-TQFP (PT) 10x10 mm |
| Program Flash | 48 KB | 64 KB | 32 KB |
| Data RAM | 3840 bytes | 4096 bytes | 2048 bytes |
| Max CPU Speed | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) |
| Operating Voltage | 4.2V to 5.5V | 4.2V to 5.5V | 4.2V to 5.5V |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| I/O Pins | 52 | 52 | 52 |
اہم امتیازی خصوصیات
- More code space than the 6520 sibling without footprint change (بمقابلہPIC18F6520-I/PT)
- Extended -40C to +125C temperature grade vs -85C (بمقابلہPIC18F6621-I/PT)
- Mature 5V PIC18 architecture vs newer 3.3V K-series (بمقابلہPIC18F46K22-E/PT)
ڈیزائن نوٹس
PIC18F6525-E/PT requires 4.2V-5.5V on VDD and a separate AVDD pin (typically tied to VDD through a ferrite bead). Decouple each VDD pin with a 100 nF ceramic plus a bulk 10 uF tantalum or ceramic on the board-level supply. For designs migrating to 3.3V-only peripherals, add an external 3.3V LDO (MCP1700) rather than running the PIC18 at 3.3V - the flash write VDD spec is 4.5V minimum, so dropping below 4.5V may cause flash programming failures. Estimated: at 40 MHz, core current is around 25 mA, plus 10 mA I/O drive budget - so size VDD trace to handle 50 mA peak with <50 mV drop.
Place the 20 MHz or 40 MHz crystal within 5 mm of OSC1/OSC2 with short symmetrical traces and a grounded guard ring; the PIC18 oscillator stage is sensitive to stray capacitance beyond ~20 pF. Add 18-22 pF load capacitors (value depends on crystal CL spec). Route ICSP pins (RB6/PGC, RB7/PGD) to a 6-pin header with no series resistors on the data/clock lines (resistors are fine on MCLR but optional). Keep analog traces (PORTA, PORTF analog inputs) away from switching digital lines - cross only at right angles - and guard the AVSS pin with a clean ground pour stitched with vias.
Do not leave MCLR floating - even with the internal pull-up disabled on some PIC18 variants, noise on MCLR causes spurious resets. Always use a 10 kohm pull-up to VDD and a 100 nF cap to ground for slow-rising supply rejection. Another common mistake is configuring RE3 as output on PIC18F65xx parts - RE3 is INPUT-ONLY and serves as MCLR alternate; configuring it as output writes are silently ignored. Finally, remember that on the PIC18F6525 the EUSART TX/CK pins default to PORTC, but some remappable variants (not the -E/PT) require peripheral pin select (PPS) configuration - always check the silicon errata for the specific mask revision in your lot.
تعمیل کی معلومات
RoHS and REACH compliant per Microchip product page. -E grade is extended industrial -40C to +125C, NOT AEC-Q100 automotive qualified; for AEC-Q100 use the -V suffix or K-series automotive parts.
