PIC18F66K80-I/MR - 8-bit 64MHz 64KB Flash MCU w/ ECAN | Microchip
料号： PIC18F66K80-I/MR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.47 | $6.47 |
| 10 | $5.83 | $58.30 |
| 100 | $5.18 | $518.00 |
| 500 | $4.66 | $2,330.00 |
| 1,000 | $4.14 | $4,140.00 |
PIC18F66K80-I/MR 概述
A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, peripherals, and I/O. The PIC18 family uses a RISC-based 8-bit core with hardware multiplier, 16-bit instructions, and a Harvard bus that separates program and data paths. The PIC18F66K80 sits in Microchip's "K" mid-range tier, balancing high-performance peripherals (ECAN, 12-bit ADC, CTMU) with the XLP power-saving feature set.
Key features include integrated ECAN 2.0B for industrial and automotive networking, a 12-bit A/D converter with up to 16 channels, mTouch capacitive-touch via CTMU, 64 KB self-programming Flash, 1 KB EEPROM, four 8-bit timers plus multiple 16-bit timers, two MSSP (SPI/I2C) ports, and two enhanced USART modules. nanoWatt XLP modes include deep sleep with RTC and WDT operation typically under 1 uA.
Typical applications include automotive body and cluster networks (ECAN nodes), building-control and HVAC equipment, elevator control panels, industrial sensor hubs, and low-power remote sensor modules. The wide 1.8-5.5 V range and low sleep current make it well suited to battery-backed or energy-harvesting designs.
When designing with this part, ensure decoupling is placed near each power pin, leave the no-connect (NC) pins per the pinout, and configure the CONFIG words for oscillator, watchdog, and code protection. Use MPLAB X IDE with the XC8 compiler for code development and debugging.
直接替换替代料： PIC18F66K80-I/MR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC18F66K80-I/MR （相同外形与封装尺寸） ——差异在于 ADC, Package, Operating Temperature Range, Communication Interfaces, Core.
快速对比工具——选择替代料号进行并排对比：
PIC18F66K80-H/MR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.94 / 个
查看数据手册 →PIC18F66K80-E/MR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC18F65K90-I/MR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.02 / 个
查看数据手册 →PIC18F65K80-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.62 / 个
查看数据手册 →PIC18F66K40T-I/MR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.46 / 个
查看数据手册 →PIC18F66K80-I/MR 最大额定值与电气特性
| Core Architecture | PIC18 8-bit RISC |
| CPU Speed | 64 MHz (16 MIPS) |
| Program Memory | 64 KB Flash |
| RAM | 4 KB |
| EEPROM | 1 KB |
| Operating Voltage | 1.8 V to 5.5 V |
| ADC | 12-bit, up to 16 channels |
| Communication | ECAN 2.0B, 2x EUSART, 2x MSSP (SPI/I2C) |
| Timers | 4x 8-bit, 4x 16-bit |
| CTMU | Yes (mTouch capacitive touch) |
| XLP nanoWatt | Yes (deep sleep < 1 uA typical) |
| 封装 | 64-pin VQFN (9x9 mm) |
| 工作温度 | -40 C to +85 C (Industrial) |
| RoHS | Compliant |
PIC18F66K80-I/MR 引脚配置
| 引脚 1 | NC — Not connected (per datasheet) |
| 引脚 2 | RA0 — PORTA digital I/O / AN0 analog input |
| 引脚 3 | RA1 — PORTA digital I/O / AN1 analog input |
| 引脚 4 | RA2 — PORTA digital I/O / AN2 analog input |
| 引脚 5 | RA3 — PORTA digital I/O / AN3 analog input / VREF+ |
| 引脚 6 | RA4 — PORTA digital I/O / AN4 analog input |
| 引脚 7 | RA5 — PORTA digital I/O / AN5 / VREF- |
| 引脚 8 | RA6 — PORTA digital I/O / OSC2 |
| 引脚 9 | RA7 — PORTA digital I/O / OSC1 |
| 引脚 10 | VSS — Ground reference |
| 引脚 11 | VDD — Positive power supply |
| 引脚 12 | RB0 — PORTB digital I/O / INT0 / ECCP1 |
| 引脚 13 | RB1 — PORTB digital I/O / INT1 |
| 引脚 14 | RB2 — PORTB digital I/O / INT2 / CTED1 |
| 引脚 15 | RB3 — PORTB digital I/O / INT3 / CTED2 |
| 引脚 16 | RB4 — PORTB digital I/O / KBI0 |
| 引脚 17 | RB5 — PORTB digital I/O / KBI1 / CANTX |
| 引脚 18 | RB6 — PORTB digital I/O / KBI2 / PGC (ICSP clock) |
| 引脚 19 | RB7 — PORTB digital I/O / KBI3 / PGD (ICSP data) |
| 引脚 20 | VSS — Ground reference |
| 引脚 21 | VDD — Positive power supply |
| 引脚 22 | RC0 — PORTC digital I/O / SOSCO / T1OSO |
| 引脚 23 | RC1 — PORTC digital I/O / SOSCI / T1OSI |
| 引脚 24 | RC2 — PORTC digital I/O / CCP1 |
| 引脚 25 | RC3 — PORTC digital I/O / SCL1 |
| 引脚 26 | RC4 — PORTC digital I/O / SDA1 |
| 引脚 27 | RC5 — PORTC digital I/O / SDO1 |
| 引脚 28 | RC6 — PORTC digital I/O / TX1/CK1 |
| 引脚 29 | RC7 — PORTC digital I/O / RX1/DT1 |
| 引脚 30 | VSS — Ground reference |
| 引脚 31 | VDD — Positive power supply |
| 引脚 32 | RD0 — PORTD digital I/O / ECI |
| 引脚 33 | RD1 — PORTD digital I/O / CCP4 |
| 引脚 34 | RD2 — PORTD digital I/O / CCP5 |
| 引脚 35 | RD3 — PORTD digital I/O / CTMUI |
| 引脚 36 | RD4 — PORTD digital I/O / CANRX |
| 引脚 37 | RD5 — PORTD digital I/O |
| 引脚 38 | RD6 — PORTD digital I/O |
| 引脚 39 | RD7 — PORTD digital I/O |
| 引脚 40 | VSS — Ground reference |
| 引脚 41 | VDD — Positive power supply |
| 引脚 42 | RE0 — PORTE digital I/O / AN8 |
| 引脚 43 | RE1 — PORTE digital I/O / AN9 |
| 引脚 44 | RE2 — PORTE digital I/O / AN10 |
| 引脚 45 | RE3 — PORTE digital I/O / AN11 |
| 引脚 46 | RF0 — PORTF digital I/O / AN5 alt |
| 引脚 47 | RF1 — PORTF digital I/O / AN6 / C2OUT |
| 引脚 48 | RF2 — PORTF digital I/O / AN7 / C1OUT |
| 引脚 49 | RF3 — PORTF digital I/O / AN8 alt |
| 引脚 50 | RF4 — PORTF digital I/O / AN9 alt |
| 引脚 51 | RF5 — PORTF digital I/O / AN10 alt |
| 引脚 52 | RF6 — PORTF digital I/O / AN11 alt |
| 引脚 53 | RF7 — PORTF digital I/O / AN12 |
| 引脚 54 | VSS — Ground reference |
| 引脚 55 | VDD — Positive power supply |
| 引脚 56 | RG0 — PORTG digital I/O / CCP3 |
| 引脚 57 | RG1 — PORTG digital I/O / CANTX2 |
| 引脚 58 | RG2 — PORTG digital I/O / CANRX2 |
| 引脚 59 | RG3 — PORTG digital I/O / CCP4 alt |
| 引脚 60 | RG4 — PORTG digital I/O / CCP5 alt |
| 引脚 61 | AVDD — Analog positive supply |
| 引脚 62 | AVSS — Analog ground reference |
| 引脚 63 | MCLR — Master Clear reset input (active low) |
| 引脚 64 | NC — Not connected (per datasheet) |
典型应用
PIC18F66K80-I/MR 适用于 6 应用s: Automotive ECAN Body Control Module, Building Control and HVAC Equipment, Industrial Sensor Hub with CANopen, Elevator Control Panel, Battery-Backed Data Logger, Capacitive Touch User Interface.
Automotive ECAN Body Control Module
The PIC18F66K80-I/MR's integrated ECAN 2.0B module and 64 KB Flash make it a strong fit for automotive body control nodes. The hardware CAN engine offloads bit timing, acceptance filtering, and bus arbitration from the CPU, freeing cycles for body-domain logic such as lighting, door modules, and seat control. The 1.8-5.5 V supply range handles crank-voltage transients when paired with external TVS protection, and the XLP sleep mode keeps quiescent draw below 100 uA in parked-vehicle modes for weeks-long standby. ECAN bit rates up to 1 Mbps support modern vehicle networks including CAN-FD gateways.
推荐
Building Control and HVAC Equipment
HVAC and building-automation controllers benefit from the PIC18F66K80-I/MR's combination of 12-bit ADC for analog sensor reading, CTMU for capacitive user interfaces, and 16 MIPS performance for control loops. The wide operating voltage lets the part run directly from 24 VAC rectified supplies with simple regulators. The dual MSSP (SPI/I2C) and dual EUSART ports support daisy-chained sensor buses, BACnet gateways, and Modbus RTU connections. XLP deep-sleep mode below 1 uA enables battery-backed thermostats that survive outages while still polling schedules and maintaining RTC accuracy.
推荐
Industrial Sensor Hub with CANopen
Industrial sensor hubs require deterministic communication, robust peripherals, and extended temperature operation - all delivered by the PIC18F66K80-I/MR. The integrated ECAN module supports CANopen and DeviceNet stacks, while the 12-bit ADC and CTMU allow direct connection to analog sensors and capacitive proximity elements. The 64 KB Flash provides ample headroom for CANopen stack libraries plus custom application code. The -40 C to +85 C industrial temperature grade suits factory-floor deployments without derating.
推荐
Elevator Control Panel
Elevator control panels require reliable operation across many switching cycles, multi-language display support, and clean button-debounce logic. The PIC18F66K80-I/MR provides 64 KB Flash for state machines and menu handling, 4 KB RAM for display buffers, and CTMU for capacitive floor-selection buttons without mechanical wear. The hardware ECAN allows the panel to network with the elevator controller for floor-status synchronization. The 16 MIPS throughput ensures responsive button-press handling and display refresh even with simultaneous CAN traffic.
推荐
Battery-Backed Data Logger
Battery-powered data loggers running from 2x AA cells or Li-ion packs require microamp-range quiescent current and reliable non-volatile storage. The PIC18F66K80-I/MR's nanoWatt XLP deep-sleep mode drops below 1 uA with RTC active, and its 1 KB EEPROM allows parameter storage without external memory. The 12-bit ADC samples slow analog signals (temperature, pressure, flow) without an external front end. The 64 KB Flash accommodates months of circular log buffering, and the wide 1.8-5.5 V range supports battery chemistries from alkaline to Li-primary.
推荐
Capacitive Touch User Interface
The PIC18F66K80-I/MR's CTMU (Charge Time Measurement Unit) provides hardware-driven capacitive touch sensing for buttons, sliders, and wheels without an external touch controller IC. Combined with the 12-bit ADC for proximity detection and 64 KB Flash for gesture-recognition firmware, the part enables compact sealed-keypad designs that survive water and dust ingress. The XLP sleep mode keeps battery-powered touch remotes in standby for months between charges, waking only on proximity interrupt.
推荐
推荐产品汇总
工程参考数据： PIC18F66K80-I/MR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC18F66K80-H/MR | PIC18F66K80-E/MR | PIC18F65K90-I/MR | PIC18F65K80-I/PT | PIC18F66K40T-I/MR |
|---|---|---|---|---|---|---|
| Package | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | TQFP-64 - same pin count different package | 64-VQFN (9x9 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 64 KB | 64 KB | 32 KB (-50%) | 32 KB (-50%) | 32 KB (-50%) |
| ECAN Module | Yes (ECAN 2.0B) | Yes | Yes | No | Yes | No |
| Operating Frequency | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Temperature Grade | Industrial -40 C to +85 C | High -40 C to +150 C | Extended -40 C to +125 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C |
| CTMU Touch Sensing | Yes | Yes | Yes | Yes | Yes | Yes |
关键差异点
- Integrated ECAN 2.0B with hardware filtering （对比 PIC18F66K40T-I/MR)
- 64 KB Flash vs 32 KB in similar K-series parts （对比 PIC18F65K80-I/PT)
- Same package across K-series K80 family （对比 PIC18F66K80-E/MR)
设计说明
Place a 100 nF decoupling capacitor within 5 mm of each VDD/VDDCORE pin and a bulk 4.7-10 uF tantalum or ceramic capacitor near the package. The PIC18F66K80-I/MR has multiple VDD/VSS pin pairs (pins 11/10, 21/20, 31/30, 41/40, 55/54); all must be bypassed. AVDD/AVSS (pins 61/62) require separate decoupling with an LC or ferrite-bead-isolated analog supply for best ADC performance.
Route the ECAN CANH/CANL differential pair as impedance-matched (~120 ohm) traces with ground reference plane on the layer below, keeping pair length mismatch under 5 mm. Place the MCP2551 or similar CAN transceiver within 50 mm of the PIC18F66K80-I/MR's CANRX/CANTX pins (RB5/RD4). Keep crystal traces short and surrounded by ground pour to minimize EMI coupling into the high-impedance ADC inputs.
Do not leave MCLR floating - it must be pulled up to VDD through a 10-47 kohm resistor, optionally with a 100 nF capacitor for noise filtering. Configure CONFIG1L, CONFIG1H, CONFIG2L, CONFIG2H, CONFIG3L, CONFIG3H, CONFIG4L, CONFIG4H, CONFIG5L, CONFIG5H, CONFIG6L, CONFIG6H, CONFIG7L, and CONFIG7H in MPLAB X IDE to match the oscillator, watchdog, brown-out, and code-protection requirements for your design. Failure to lock CONFIG bits properly is the most common firmware brick.
The 9x9 mm VQFN package has a thermal pad (EPAD) on its underside that must be soldered to a copper pour with multiple thermal vias to the ground plane(s) to dissipate the ~500 mW max power dissipation. Estimated: at 64 MHz / 5 V / full peripheral activity, core current can reach 25 mA; without proper PCB thermal management, junction-to-ambient thermal resistance (theta_JA) can exceed 30 C/W, causing thermal throttling in high-ambient environments.
合规信息
PIC18F66K80-I/MR is the industrial temperature grade and is not AEC-Q100 qualified; choose PIC18F66K80-E/MR for AEC-Q100 automotive. RoHS and REACH compliance per Microchip product declaration. Conflict-minerals statement per Microchip CMRT filings.
