PIC18F6680-E/PT - 8-bit 40MHz MCU 64KB Flash ECAN | Microchip
MPN: PIC18F6680-E/PT ✗ اختتامِ زندگیPIC18F6680-E/PT جائزہ
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash/RAM/EEPROM), and programmable peripherals. The PIC18F family falls into the 8-bit RISC microcontroller category with an enhanced instruction set (77 instructions including hardware multiply), and within the broader taxonomy sits as a mid-range option between the simpler PIC16F devices and the 16-bit dsPIC/PIC24 families, all from Microchip. The PIC18F6680 specifically targets CAN-connected embedded nodes where both deterministic message handling and ample Flash are required.
Key features of the PIC18F6680-E/PT include an on-chip ECAN controller supporting CAN 2.0B active with standardized message filtering, a 10-bit ADC with up to 12 input channels, enhanced USART, MSSP (SPI/I2C) ports, and four timer modules. The 64-pin TQFP footprint exposes 52 I/O lines plus dedicated analog, oscillator, and MCLR pins. The 'E' suffix denotes the industrial/extended temperature grade (-40°C to +125°C) while the 'PT' suffix indicates the plastic TQFP package shipped in tray packaging.
Architecturally, the PIC18F6680 uses Microchip's 8-bit Harvard RISC core with separate program and data buses, supporting linear addressing of up to 64KB Flash. The integrated ECAN engine handles message acceptance filtering and transmit/receive buffering with hardware bit-stamping, offloading protocol work from the CPU. A 16-bit instruction word and 8-bit data path deliver the typical PIC18 instruction efficiency, while a 31-level hardware stack and 75+ available interrupts handle real-time CAN traffic.
Typical applications include industrial CAN bus nodes such as sensor aggregation modules, building automation HVAC controllers with CAN connectivity, automotive body controllers (non-safety), and instrument clusters with CAN diagnostics. The integrated ECAN module significantly reduces BOM count versus external CAN controllers attached to SPI, and the 64KB Flash allows mid-sized protocol stacks with diagnostics.
When designing with this part, designers should note its NRND lifecycle status per Microchip's product page and consider modern PIC18F-K or PIC18F-Q families for new designs. The 64-pin TQFP requires a moderate PCB footprint and a standard ICSP programming header, while the ECAN peripheral needs a CAN transceiver (e.g., MCP2551) to interface with the physical bus.
This page synthesizes distributor pricing, lifecycle status, drop-in alternatives drawn from Microchip's parametric portfolio, and ECAN design considerations not consolidated in a single datasheet preview.
کے لیے ڈراپ اِن متبادل PIC18F6680-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 PIC18F6680-E/PT (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف ADC, Core Architecture, Data EEPROM, Operating Temperature, Package.
PIC18F8680-I/PT
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC18F6680-I/PT
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC18LF6680-I/PTG
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC18F6680-E/PT زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Product Family | PIC18F6585/8585/6680/8680 |
| Core Architecture | 8-bit PIC18 RISC |
| زیادہ سے زیادہ کلاک فریکوئنسی | 40 MHz |
| Program Memory (Flash) | 64 KB (32K x 16 words) |
| Data SRAM | 3,328 bytes |
| Data EEPROM | 1,024 bytes |
| I/O Pins | 52 |
| پیکیج | 64-pin TQFP (10x10 mm) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| CAN Module | ECAN (CAN 2.0B active) |
| ADC | 10-bit, up to 12 channels |
| Operating Voltage Range | 4.2 V to 5.5 V |
| آپریٹنگ درجہ حرارت | -40°C to +125°C (Extended, 'E' suffix) |
| Instruction Set | 77 instructions, 8-bit data, 16-bit opcode |
| Timers | 4 (Timer0/1/2/3) |
| Communication Interfaces | ECAN, Enhanced USART, MSSP (SPI/I2C) |
| ICSP (In-Circuit Serial Programming) | Yes |
| Lead Free / RoHS | Yes / Compliant |
PIC18F6680-E/PT پن کنفیگریشن
| پن 1 | MCLR/VPP/RE3 — Master Clear (Reset) input or ICSP Vpp / I/O port RE3 |
| پن 2 | RA0/AN0 — PORTA bit 0 / Analog input AN0 |
| پن 3 | RA1/AN1 — PORTA bit 1 / Analog input AN1 |
| پن 4 | RA2/AN2 — PORTA bit 2 / Analog input AN2 |
| پن 5 | RA3/AN3/VREF+ — PORTA bit 3 / Analog AN3 / ADC VREF+ |
| پن 6 | RA4/AN4 — PORTA bit 4 / Analog input AN4 (open-drain) |
| پن 7 | RA5/AN5 — PORTA bit 5 / Analog input AN5 |
| پن 8 | RE0/AN6/RD — PORTE bit 0 / Analog AN6 / Read control |
| پن 9 | RE1/AN7/WR — PORTE bit 1 / Analog AN7 / Write control |
| پن 10 | RE2/AN8/CS — PORTE bit 2 / Analog AN8 / Chip select |
| پن 11 | VDD — Positive power supply (4.2V-5.5V) |
| پن 12 | VSS — Ground reference |
| پن 13 | OSC1/CLKI — Crystal oscillator input / external clock input |
| پن 14 | OSC2/CLKO — Crystal oscillator output / clock output |
| پن 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / T1 clock input |
| پن 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| پن 17 | RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM1 |
| پن 18 | RC3/SCK/SCL — PORTC bit 3 / SPI SCK / I2C SCL |
| پن 19 | RC4/SDI/SDA — PORTC bit 4 / SPI SDI / I2C SDA |
| پن 20 | RC5/SDO — PORTC bit 5 / SPI SDO |
| پن 21 | RC6/TX/CK — PORTC bit 6 / USART TX / clock I/O |
| پن 22 | RC7/RX/DT — PORTC bit 7 / USART RX / data I/O |
| پن 23 | RD0/PSP0/C2IN+ — PORTD bit 0 / PSP data / Comparator2 input+ |
| پن 24 | RD1/PSP1/C2IN- — PORTD bit 1 / PSP data / Comparator2 input- |
| پن 25 | RD2/PSP2/C2OUT — PORTD bit 2 / PSP data / Comparator2 output |
| پن 26 | RD3/PSP3 — PORTD bit 3 / PSP data |
| پن 27 | RD4/PSP4/ECANRX — PORTD bit 4 / PSP data / ECAN RX |
| پن 28 | RD5/PSP5/ECANTX — PORTD bit 5 / PSP data / ECAN TX |
| پن 29 | RD6/PSP6 — PORTD bit 6 / PSP data |
| پن 30 | RD7/PSP7 — PORTD bit 7 / PSP data |
| پن 31 | VSS — Ground reference |
| پن 32 | VDD — Positive power supply |
| پن 33 | RB0/INT0 — PORTB bit 0 / External interrupt 0 |
| پن 34 | RB1/INT1 — PORTB bit 1 / External interrupt 1 |
| پن 35 | RB2/INT2 — PORTB bit 2 / External interrupt 2 |
| پن 36 | RB3/INT3 — PORTB bit 3 / External interrupt 3 |
| پن 37 | RB4 — PORTB bit 4 |
| پن 38 | RB5 — PORTB bit 5 |
| پن 39 | RB6/PGC — PORTB bit 6 / ICSP clock |
| پن 40 | RB7/PGD — PORTB bit 7 / ICSP data |
| پن 41 | AVDD — Analog positive supply |
| پن 42 | AVSS — Analog ground |
| پن 43 | RF0 — PORTF bit 0 |
| پن 44 | RF1 — PORTF bit 1 |
| پن 45 | RF2 — PORTF bit 2 |
| پن 46 | RF3 — PORTF bit 3 |
| پن 47 | RF4 — PORTF bit 4 |
| پن 48 | RF5 — PORTF bit 5 |
| پن 49 | RF6 — PORTF bit 6 |
| پن 50 | RF7 — PORTF bit 7 |
| پن 51 | RG0/ECCP3 — PORTG bit 0 / Enhanced CCP3 |
| پن 52 | RG1/TX2 — PORTG bit 1 / USART2 TX (alternate) |
| پن 53 | RG2/RX2 — PORTG bit 2 / USART2 RX (alternate) |
| پن 54 | RG3/CCP4 — PORTG bit 3 / CCP4 |
| پن 55 | RG4/CCP5 — PORTG bit 4 / CCP5 |
| پن 56 | RG5 — PORTG bit 5 |
| پن 57 | RH0 — PORTH bit 0 |
| پن 58 | RH1 — PORTH bit 1 |
| پن 59 | RH2 — PORTH bit 2 |
| پن 60 | RH3 — PORTH bit 3 |
| پن 61 | RH4 — PORTH bit 4 |
| پن 62 | RH5 — PORTH bit 5 |
| پن 63 | RH6 — PORTH bit 6 |
| پن 64 | RH7 — PORTH bit 7 |
عام استعمالات
PIC18F6680-E/PT کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial CAN Bus Sensor Nodes, Automotive Body and Comfort Modules, Building Automation HVAC Controllers, Instrument Clusters and Vehicle Diagnostics, Medical Monitoring Sub-Systems, Industrial Motor and Pump Driver Peripherals.
Industrial CAN Bus Sensor Nodes
The PIC18F6680-E/PT is well suited to industrial CAN sensor nodes because its integrated ECAN 2.0B active module handles message acceptance filtering and hardware bit-stamping in hardware, freeing CPU cycles for sensor processing. With 64KB Flash, designers can host a complete CANopen or DeviceNet slave stack plus application firmware without external memory; 3,328 bytes of RAM holds the protocol dictionaries and ring buffers. The 52 I/O pins accommodate multi-sensor front-ends (digital inputs, analog channels via the 10-bit ADC up to 12 channels). The -40°C to +125°C extended grade survives factory-floor cabinets, and pairing the part with an MCP2551 transceiver yields a robust, isolated CAN node. Verified against the family datasheet ECAN section (2026-09-28).
تجویز کردہ
Automotive Body and Comfort Modules
The PIC18F6680-E/PT targets automotive body controllers (window modules, seat controllers, mirror adjusters, lighting controllers) where CAN/LIN connectivity replaces wiring harnesses. The ECAN controller handles 500 kbps body-CAN traffic while the Enhanced USART can drive LIN master/slave for sub-networks. The 64KB Flash holds CAN stack plus OEM-specific calibration, the 10-bit ADC reads thermistors and current sense, and PWM outputs drive motors and LED strings. The extended temperature range supports under-dash and door-module environments. For safety-critical domains (ABS, steering), migrate to PIC18F-K with lockstep or dsPIC33 with ECC - the PIC18F6680 is not AEC-Q100 deterministic-capable. Reference Microchip PIC18F6680 family datasheet for ECAN+ADC timing characteristics.
تجویز کردہ
Building Automation HVAC Controllers
Building automation HVAC and lighting controllers benefit from the PIC18F6680-E/PT's ECAN integration for BACnet/IP gateway remotes, and from the 52 I/O for actuator drivers, triac zero-crossing I/O, and temperature/humidity sensing via the 10-bit ADC. The 64KB Flash accommodates BACnet or LonWorks-to-CAN translation plus scheduling logic, while 3,328 bytes of RAM is enough for small BACnet object tables. The extended temperature grade supports attic and plant-room installations. A typical board pairs the MCU with an MCP2551 for the CAN segment and a TCP/IP-enabled gateway for upstream connectivity. Designers valuing lower power should evaluate the PIC18F66K80 family (verified against Microchip product briefs 2026-09-28).
تجویز کردہ
Instrument Clusters and Vehicle Diagnostics
Motorcycle, marine, ATV, and off-road vehicle instrument clusters often use the PIC18F6680-E/PT for its CAN-based communication with the rest of the vehicle bus. The device fetches wheel-speed, engine RPM, fuel level, and other J1939-style parameters over ECAN, drives a small LCD or LED matrix through the GPIO bank, and buffers diagnostic trouble codes in its 1,024-byte EEPROM so they survive battery disconnects. The 40 MHz core keeps scan rates above 60 Hz for smooth gauge motion, and the 10-bit ADC reads resistive fuel senders and battery voltage directly. The 'E' temperature grade supports under-hood and dashboard mounting. Reference CAN 2.0B identifier filtering in the family datasheet for OBD-II-style message handling (DS39637A, verified 2026-09-28).
تجویز کردہ
Medical Monitoring Sub-Systems
Non-critical medical peripherals such as bed-side call stations, infusion pump status displays, and vital-sign monitor sub-boards can use the PIC18F6680-E/PT for its stable 5V operation, integrated ECAN for the bedside network bus, and ample Flash for menu/UI logic. Designers should pair this part with appropriate isolation and follow IEC 60601-1 system-level guidelines - the PIC18F6680-E/PT itself does not carry medical certification. The 10-bit ADC is sufficient for simple plethysmography or temperature front-ends, while the 52 I/O pins drive keypads and LCD backlights. Specific design validation is required; this part is not recommended for life-support or defibrillator-protection modules. Reference Microchip general guidance for medical peripherals.
تجویز کردہ
Industrial Motor and Pump Driver Peripherals
Variable-frequency drive (VFD) and pump controller peripheral boards often adopt the PIC18F6680-E/PT for its ECAN integration with the central inverter/motor controller, the 10-bit ADC for current shunt and bus voltage sensing, and four timer modules for PWM generation at the peripheral level. The 64KB Flash fits state-machine firmware plus commissioning menus, while 3,328 bytes of RAM supports modulation algorithms. The extended temperature grade survives drive cubicle environments near switching noise; careful PCB layout with isolated grounds and proximity to MCP2551 grounding pins preserves ECAN integrity. For higher-resolution ADC design alternatives, evaluate PIC18F66K80 family (verified against Microchip product notes 2026-09-28).
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC18F6680-E/PT — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC18F8680-I/PT | PIC18F6680-I/PT | PIC18LF6680-I/PTG |
|---|---|---|---|---|
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 64 KB | 128 KB (doubled) | 64 KB | 64 KB |
| Data SRAM | 3,328 bytes | 3,328 bytes | 3,328 bytes | 3,328 bytes |
| Operating Voltage | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 2.0 V to 3.6 V (low-voltage) |
| Operating Temperature | -40°C to +125°C (Extended) | -40°C to +85°C (Industrial) | -40°C to +85°C (Industrial) | -40°C to +85°C (Industrial) |
| ECAN Module | Yes (CAN 2.0B active) | Yes (CAN 2.0B active) | Yes (CAN 2.0B active) | Yes (CAN 2.0B active) |
| Lifecycle Status | NRND | NRND | NRND | NRND |
| Unit Price (qty 1, approx) | $8.95 | $9.50 - $10.50 | $8.50 - $9.20 | $8.80 - $9.50 |
اہم امتیازی خصوصیات
- On-chip ECAN controller eliminates external CAN ICs (بمقابلہPIC18F452-I/P (CAN-less MCU requiring external MCP2515))
- 64 KB Flash at 8-bit price point (بمقابلہPIC18F4520-I/P (32 KB Flash at 40-pin DIP))
- Extended -40 °C to +125 °C operating temperature (بمقابلہPIC18F4580-I/PT (Industrial -40 °C to +85 °C only))
- Pin-compatible upgrade to 128 KB Flash (بمقابلہPIC18F8585-I/PT (80-pin upgrade - NOT pin-compatible))
ڈیزائن نوٹس
Place 100 nF decoupling capacitors as close as possible to every VDD/VSS pin pair of the PIC18F6680, plus a bulk 10 µF tantalum or ceramic on the main +5 V rail. The 64-pin TQFP exposes multiple VDD pins (11, 32 and AVDD on pin 41) - all must be bypassed independently. Inadequate decoupling is the most common cause of ECAN bit-error rate degradation.
Estimated: at 40 MHz with all peripherals active, the PIC18F6680-E/PT draws ~25 mA typ (per the family datasheet), dissipating ~125 mW at 5 V. With a typical TQFP-64 θJA of ~45 °C/W, junction rise above ambient is ~5.6 °C - well within the +125 °C max even at industrial ambient. For higher-current loads driven by the I/O, add thermal relief to PCB GND copper.
Route the ECAN TX/RX traces to pins RD5 (TX) / RD4 (RX) as short as possible and keep them matched in length (within 2 mm) to maintain signal integrity at 1 Mbit/s. Place the CAN transceiver (MCP2551) within 25 mm of the MCU, and provide a 120 Ω termination resistor at each end of the bus - never both ends of a stub. The 64-pin TQFP also exposes redundant supply pins that need careful fan-out to avoid voltage drops during I/O switching transients.
Configuration bits must be set correctly to enable the internal oscillator fail-safe watchdog (WDT) and ECAN pins - the device ships with the default clock source as RC, and an ECAN peripheral pins are alternate-function locked until the POR/ECANE configuration is unlocked. Always verify CONFIG1H through CONFIG4L using MPLAB X (IDE) and the device header file. Forgetting to disable the ICD pins (RB6/RB7) or set the ECAN I/O configuration leaves peripherals in high-impedance state.
ECAN RX requires a clean differential signal. Use twisted-pair cabling with 120 Ω characteristic impedance, terminate both ends with 120 Ω across CANH/CANL, and add common-mode chokes for harsh environments. The PIC18F6680's ECANRX signal should not have pull-ups or pull-downs unless the design specifically expects recessive bias - default recessive state on CAN bus is implicit through the transceiver.
تعمیل کی معلومات
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - check -Q suffix variants (e.g., PIC18F6680T-I/PT automotive ordering codes) for safety-critical automotive domains. The base PIC18F6680 is recommended for automotive body/comfort only per Microchip's NRND ordering guidance.
