PIC18F6520-E/PT - 8-Bit 25MHz 32KB Flash MCU 64-TQFP | Microchip
MPN: PIC18F6520-E/PT ✓ פעילPIC18F6520-E/PT סקירה
What is a PIC18F microcontroller? The PIC18F is Microchip's 8-bit Harvard-architecture RISC microcontroller family, sitting in the hierarchy: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. PIC18F devices use a 16-bit instruction word with an 8-bit data path and offer enhanced peripherals, more memory, and richer interrupt handling than the earlier PIC16F baseline. They are upward code-compatible with PIC16 and the broader PIC family, and remain widely used in cost-sensitive embedded applications that don't require 32-bit performance.
The PIC18F6520 is the natural extension of the PIC18F452 device, providing more RAM, more I/Os, a second serial communication port, additional timers, and additional CCP modules on top of the same peripheral set, and is upward software compatible with PIC16. Key features include 32KB Flash with self-programmability, 2KB SRAM, 256 bytes of EEPROM, 52 digital I/O pins, two USART modules, MSSP (SPI/I2C), a 10-bit A/D with up to 16 channels, and dual analog comparators.
Typical applications include industrial control and instrumentation, automotive body electronics and HVAC controls, building automation, consumer white goods, USB peripherals using the second USART, sensor hubs and motor control, and embedded human-machine interface (HMI) boards. Its wide -40C to +125C operating range and AEC-grade temperature option make it suitable for non-safety automotive and harsh industrial environments.
When designing with the PIC18F6520-E/PT, plan oscillator and decoupling layout carefully: place a 0.1uF decoupling cap on every VDD/VSS pair, keep the crystal traces short, and ensure the ICSP/ICD pins are accessible for in-circuit programming. The 64-pin TQFP footprint is large enough that careful ground plane stitching is straightforward; reserve a generous copper pour under the exposed area to help thermal dissipation.
This page synthesizes the Microchip datasheet with current distributor pricing and drop-in same-family Microchip alternatives not consolidated in any single manufacturer document, providing AEO-optimized answers for engineers evaluating this MCU.
חלופות תחליף ישיר עבור PIC18F6520-E/PT — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC18F6520-E/PT (אותו גורם צורה וטביעת רגל) — שונים ב Package, Core Architecture, EEPROM, Operating Temperature, Timers.
PIC18F6520-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F6620-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F6720-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F6520T-E/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F6620-E/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F6620T-E/PT
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC18F6720T-E/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F6520-E/PT דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | 8-bit PIC RISC |
| Family | PIC18F |
| Program Memory (Flash) | 32 KB (16K x 16) |
| RAM | 2 KB |
| EEPROM | 256 bytes |
| תדר שעון מקסימלי | 40 MHz |
| Instruction Throughput | 25 MIPS at 40 MHz |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| טמפרטורת פעולה | -40C to +125C (Extended, "-E") |
| I/O Pins | 52 digital I/O |
| A/D Converter | 10-bit, up to 16 channels |
| Analog Comparators | 2 |
| USART | 2 channels |
| MSSP (SPI / I2C) | Yes |
| Timers | 5 (Timer0/1/2/3 + WDT) |
| CCP Modules | 2 (Capture/Compare/PWM) |
| מארז | 64-pin TQFP (10x10 mm, 1.0 mm height, MS-026) |
| סוג הרכבה | Surface Mount |
| Lead Finish | Lead-free (RoHS-compliant) |
תצורת פינים של PIC18F6520-E/PT
| פין 1 | NC — Not connected (no internal bond) |
| פין 2 | OSC2/CLKO/RA6 — Oscillator output / general I/O |
| פין 3 | OSC1/CLKI/RA7 — Oscillator input / general I/O |
| פין 4 | VDD — Positive supply |
| פין 5 | VSS — Ground |
| פין 6 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| פין 7 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| פין 8 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| פין 9 | RB3/CCP2 — PORTB bit 3 / CCP2 input/output |
| פין 10 | RB4 — PORTB bit 4 |
| פין 11 | RB5/PGM — PORTB bit 5 / LVP programming |
| פין 12 | RB6/PGC — PORTB bit 6 / ICSP clock |
| פין 13 | RB7/PGD — PORTB bit 7 / ICSP data |
| פין 14 | AVDD — Analog supply |
| פין 15 | AVSS — Analog ground |
| פין 16 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| פין 17 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| פין 18 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / VREF- |
| פין 19 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / VREF+ |
| פין 20 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| פין 21 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| פין 22 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator |
| פין 23 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator / CCP2 |
| פין 24 | RC2/CCP1 — PORTC bit 2 / CCP1 |
| פין 25 | RC3/SCK/SCL — PORTC bit 3 / MSSP clock |
| פין 26 | RC4/SDI/SDA — PORTC bit 4 / MSSP data in/out |
| פין 27 | RC5/SDO — PORTC bit 5 / MSSP data out |
| פין 28 | RC6/TX1/CK1 — PORTC bit 6 / USART1 TX |
| פין 29 | RC7/RX1/DT1 — PORTC bit 7 / USART1 RX |
| פין 30 | VSS — Ground |
| פין 31 | VDD — Positive supply |
| פין 32 | RD0/PSP0 — PORTD bit 0 / parallel slave port |
| פין 33 | RD1/PSP1 — PORTD bit 1 / parallel slave port |
| פין 34 | RD2/PSP2 — PORTD bit 2 / parallel slave port |
| פין 35 | RD3/PSP3 — PORTD bit 3 / parallel slave port |
| פין 36 | RD4/PSP4 — PORTD bit 4 / parallel slave port |
| פין 37 | RD5/PSP5/PMD5 — PORTD bit 5 / parallel slave port |
| פין 38 | RD6/PSP6/PMD6 — PORTD bit 6 / parallel slave port |
| פין 39 | RD7/PSP7/PMD7 — PORTD bit 7 / parallel slave port |
| פין 40 | VSS — Ground |
| פין 41 | VDD — Positive supply |
| פין 42 | RE0/RD/AN5 — PORTE bit 0 / read strobe / analog input 5 |
| פין 43 | RE1/WR/AN6 — PORTE bit 1 / write strobe / analog input 6 |
| פין 44 | RE2/CS/AN7 — PORTE bit 2 / chip select / analog input 7 |
| פין 45 | VSS — Ground |
| פין 46 | VDD — Positive supply |
| פין 47 | RF0/AN8 — PORTF bit 0 / analog input 8 |
| פין 48 | RF1/AN9/C2OUT — PORTF bit 1 / analog input 9 / comparator 2 out |
| פין 49 | RF2/AN10/C1OUT — PORTF bit 2 / analog input 10 / comparator 1 out |
| פין 50 | RF3/AN11 — PORTF bit 3 / analog input 11 |
| פין 51 | RF4/AN12 — PORTF bit 4 / analog input 12 |
| פין 52 | RF5/AN13 — PORTF bit 5 / analog input 13 |
| פין 53 | RF6/AN14 — PORTF bit 6 / analog input 14 |
| פין 54 | RF7/AN15 — PORTF bit 7 / analog input 15 |
| פין 55 | RG0 — PORTG bit 0 |
| פין 56 | RG1/TX2/CK2 — PORTG bit 1 / USART2 TX |
| פין 57 | RG2/RX2/DT2 — PORTG bit 2 / USART2 RX |
| פין 58 | RG3/CCP3 — PORTG bit 3 / CCP3 |
| פין 59 | RG4 — PORTG bit 4 |
| פין 60 | MCLR/VPP — Master clear / programming voltage |
| פין 61 | VDD — Positive supply |
| פין 62 | VSS — Ground |
| פין 63 | NC — Not connected (no internal bond) |
| פין 64 | NC — Not connected (no internal bond) |
יישומים טיפוסיים
PIC18F6520-E/PT מתאים עבור 7 יישוםs: Industrial Control and Instrumentation, Automotive Body and HVAC Electronics, Building Automation and HVAC Nodes, Consumer White Goods and Appliances, USB and Dual-Serial Peripheral Hubs, Sensor Hubs and Data Acquisition Front-Ends, Embedded HMI and Keypad/Display Controllers.
Industrial Control and Instrumentation
The PIC18F6520-E/PT's 32KB Flash, 2KB SRAM, 10-bit A/D with up to 16 channels, and 52 digital I/O fit industrial instrumentation boards that read multiple analog sensors and drive displays and actuators. The -40C to +125C extended temperature grade lets it operate in factory-floor cabinets, process-control backplanes, and outdoor instrumentation without derating. Two USARTs plus MSSP provide flexible communication with sensors, RS-485 transceivers, or local HMI panels. Place the MCU with 0.1uF ceramic bypass caps on every VDD/VSS pair and keep analog/digital grounds separated at a single-point tie. The 64-pin TQFP gives plenty of room for clean routing of high-pin-count analog and digital signals.
מומלץ
Automotive Body and HVAC Electronics
The PIC18F6520-E/PT's Extended -40C to +125C temperature range suits non-safety automotive body modules including HVAC controllers, mirror and seat controllers, lighting modules, and instrument clusters. The dual USART and MSSP enable simultaneous communication with CAN/LIN transceivers and local sensors. The 10-bit A/D with up to 16 channels digitizes temperature, position, and pressure sensors common to HVAC systems. The 52 I/O easily drive segment LCDs via external drivers, relays, and FET gates. While not AEC-Q100 qualified at the Q1 designation level, the -E temperature grade is widely accepted for body and HVAC applications; designers needing formal AEC-Q100 should select the Q1 variant of this family.
מומלץ
Building Automation and HVAC Nodes
The PIC18F6520-E/PT is well matched to building-automation controllers such as BACnet or Modbus nodes, smart thermostats, and lighting controllers that need to handle multiple analog inputs and digital outputs. The 32KB Flash accommodates BACnet/Modbus stacks plus user-interface firmware, while 2KB of SRAM handles message buffers. The two USARTs allow simultaneous Modbus RTU on one channel and a debug/console on the other. The MSSP supports I2C sensors and EEPROM for local data logging. The Extended temperature grade supports plenum and outdoor enclosures where ambient may exceed 70C. Plan a single-point ground and isolate the analog A/D traces from switching loads driven by the GPIO-controlled relays.
מומלץ
Consumer White Goods and Appliances
The PIC18F6520-E/PT is a typical main MCU for washing machines, dishwashers, microwave ovens, induction cookers, and air purifiers where the 32KB Flash holds the motor-control and UI state-machine firmware, while 52 I/O drive segment displays, keypads, triac-gate optos, and BLDC/PMSM control signals. The 10-bit A/D with up to 16 channels digitizes thermistor, current-sensor, and level-sensor inputs. The two CCP modules support PWM generation for triac firing or BLDC commutation. Designers should add zero-cross detectors and isolation between the MCU and mains-referenced switching stages, and ensure firmware covers brown-out and watchdog reset for unattended appliance safety.
מומלץ
USB and Dual-Serial Peripheral Hubs
The PIC18F6520-E/PT's dual USARTs enable simultaneous USB-to-UART bridge behavior plus a second debug or RS-485 channel; combined with the MSSP for SPI/I2C peripherals, it acts as a multi-protocol adapter hub. The 32KB Flash stores USB class firmware plus protocol-conversion logic, and 2KB RAM buffers HID or CDC traffic. The 52 I/O provide status LEDs, button inputs, and selectable mode straps. Use external level shifters if 5V GPIO will meet 3.3V peripherals; place a ferrite bead on VUSB to keep bus noise out of the analog supply; the 64-pin TQFP keeps PCB routing simple even with 2+ serial channels.
מומלץ
Sensor Hubs and Data Acquisition Front-Ends
The PIC18F6520-E/PT fits compact multi-sensor data-acquisition front-ends that need to sample many analog channels (temperature, pressure, flow) and forward results over UART or SPI to a host controller or display. The 10-bit A/D with up to 16 channels and 52 I/O handle a dense sensor matrix, while the MSSP provides I2C access to additional digital sensors. The 32KB Flash supports averaging, linearization, and unit-conversion routines, and the EEPROM stores calibration coefficients. Add input-protection RC networks on analog channels and route sensitive traces over a continuous ground plane for best noise performance.
מומלץ
Embedded HMI and Keypad/Display Controllers
The PIC18F6520-E/PT drives segment-LCD or character-LCD front panels, scans keypads, and hosts user-interface state machines. The 52 digital I/O comfortably route to multiplexed key matrices, LED column/row drivers, and serial display peripherals. The 32KB Flash and 2KB RAM support menu hierarchies and event logging. The dual USARTs enable a local RS-485 link to a parent PLC plus a maintenance console. Place ferrite beads and TVS diodes on keypad lines that exit the enclosure, and ensure firmware debounces keys and implements a watchdog to recover from lockups on noisy shop-floor lines.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC18F6520-E/PT — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC18F6520-I/PT | PIC18F6620-I/PT | PIC18F6720-I/PT | PIC18F6520T-E/PT | PIC18F6620-E/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 32 KB | 32 KB | 64 KB | 128 KB | 32 KB | 64 KB |
| RAM | 2 KB | 2 KB | 4 KB | 4 KB | 2 KB | 4 KB |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Max Clock Speed | 40 MHz (25 MIPS) | 40 MHz (25 MIPS) | 40 MHz (25 MIPS) | 40 MHz (25 MIPS) | 40 MHz (25 MIPS) | 40 MHz (25 MIPS) |
| Temperature Grade | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| I/O Pins | 52 | 52 | 52 | 52 | 52 | 52 |
| A/D Channels | 16 (10-bit) | 16 (10-bit) | 16 (10-bit) | 16 (10-bit) | 16 (10-bit) | 16 (10-bit) |
מבדילים עיקריים
- Same-family software compatibility with all TQFP-64 PIC18F65x0/66x0/67x0 variants (לעומתPIC18F6620-I/PT)
- Extended -40C to +125C temperature grade for harsh environments (לעומתPIC18F6520-I/PT)
- Two USARTs plus MSSP for multi-protocol communication (לעומתPIC18F4620-E/PT (40-pin))
הערות תכנון
The PIC18F6520-E/PT requires a stable 4.2V to 5.5V supply. Place a 0.1uF ceramic decoupling capacitor on every VDD/VSS pin pair (there are 4 VDD and 4 VSS pairs on the TQFP-64 package) as close to the IC pins as physically possible, ideally within 3 mm. Add a bulk 10uF tantalum or aluminum polymer cap on the main 5V rail near the MCU. Keep the analog AVDD trace routed separately from digital VDD where possible, and tie AVSS to VSS at a single point near the MCU to avoid ground-loop noise injection into the 10-bit A/D converter.
The PIC18F6520-E/PT is rated for -40C to +125C operation, and the TQFP-64 (10x10 mm) package has a junction-to-ambient thermal resistance around 50-60 C/W depending on PCB layout. Estimated: at 25C ambient and typical 8-bit MCU active current (around 25 mA at 40 MHz / 5V), self-heating is roughly 0.125 W which yields a junction rise of only 6-8 C above ambient, well within the rating. In practice the Extended temperature grade is rarely thermally limited; focus instead on derating for high ambient enclosures (above 85C) or tight sealed boxes without airflow. Spread ground copper on both top and inner layers, and stitch thermal vias under the exposed area if available.
Route the crystal/oscillator traces (OSC1/OSC2 on RA7/RA6) short and symmetric, with ground guarding on both sides, and keep them away from switching signals or high-current traces. Reserve the ICSP pins (RB6/PGC and RB7/PGD) with test pads or a 0.1" header for in-circuit programming and debugging. Place the MCLR pull-up resistor (typically 10 kOhm) close to the MCLR pin and add a small capacitor to filter noise spikes that could trigger unwanted resets.
Do NOT substitute a PIC18F6520-I/PT (Industrial, -40C to +85C) into a design rated above 85C ambient - the silicon may fail or derate unexpectedly. Do NOT rely on the internal RC oscillator for timing-critical UART or USB communication without calibration compensation; use an external crystal or resonator for any baud-rate-sensitive link. Watch for configuration-bit errors: LVP (low-voltage programming) must be enabled or disabled correctly per your ICSP hardware, and the watchdog timer must be enabled in unattended industrial applications to recover from firmware lockups.
מידע על תאימות
Lead-free / RoHS-compliant finish per Microchip product page; -E temperature grade suitable for harsh industrial and non-safety automotive applications but not AEC-Q100 qualified at the Q1 designation level.
