PIC18LF65K80T-I/PT - 8-bit XLP MCU, 64MHz, 32KB Flash, 64-TQFP
料号： PIC18LF65K80T-I/PT ✓ 量产中PIC18LF65K80T-I/PT 概述
An 8-bit microcontroller (MCU) is a compact, single-chip computer built around an 8-bit data path CPU, integrated Flash program memory, data RAM, and a rich set of on-chip peripherals (timers, ADC, communication ports). Within the broader taxonomy, this device is a microcontroller -> embedded controller -> semiconductor IC, optimized for low-power, deterministic real-time control in space-constrained designs. The PIC18 architecture delivers 16 MIPS performance at 64 MHz, making it well-suited for sensor reading, actuator control, and CAN-based networking in automotive, industrial, and consumer products.
Key features include 5 timers, 2 analog comparators, 2 PWM channels, 2 EUSART modules, MSSP (SPI/I2C), an active-low MCLR reset, and an extended operating voltage range from 1.8 V to 3.6 V. The XLP nanoWatt technology provides sleep currents below 100 nA, enabling battery-powered designs that must run for years on a single cell. Hardware ECAN 2.0B support allows integration into automotive and industrial CAN networks without external controllers.
The architecture uses a 16-bit instruction word with an 8-bit data path, 31-level hardware stack, and Harvard bus architecture for deterministic interrupt response. The CTMU peripheral enables capacitive touch sensing, temperature measurement via RTDs, and precision time-of-flight measurement using a constant-current source and timer capture - capabilities rarely found on basic 8-bit MCUs.
Typical applications include automotive body and chassis ECUs, industrial sensor nodes and motor control, HVAC controllers, medical instrumentation with CAN connectivity, and consumer appliances requiring low standby power. The 64-pin TQFP footprint supports designs that need up to 54 I/O pins while staying compact.
When designing with this part, observe the supply decoupling guidelines from the manufacturer datasheet and ensure programming/debugging connector access is preserved for in-circuit serial programming (ICSP). The 64-pin TQFP package is best handled with proper reflow profile and land pattern adherence per IPC-7351 to avoid tombstoning and cold joints.
This page consolidates distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet alone, helping engineers shorten design-in time and select compatible parts confidently.
直接替换替代料： PIC18LF65K80T-I/PT ——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： PIC18LF65K80T-I/PT （相同外形与封装尺寸） ——差异在于 CTMU, ADC, Operating Temperature, Core Architecture, Program Memory (Flash).
PIC18LF65K80-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC18F65K80T-I/PT
✅ 直接替换联系询价
查看数据手册 →PIC18F66K80T-I/PT
✅ 直接替换联系询价
查看数据手册 →PIC18LF65K80T-I/PT 最大额定值与电气特性
| Family | PIC18F/LF K80 |
| Core | PIC18 8-bit RISC |
| Program Memory | 32 KB Flash (16K x 16) |
| Data RAM | 3.6 KB |
| Data EEPROM | 1 KB |
| Maximum CPU Speed | 64 MHz (16 MIPS) |
| Supply Voltage Range | 1.8 V to 3.6 V |
| 工作温度 | -40 C to +85 C (Industrial) |
| I/O Pins | 54 |
| 封装 | 64-pin TQFP (10x10 mm) |
| ADC | 11-channel, 12-bit |
| Comparators | 2 |
| Timers | 5 |
| PWM Channels | 2 |
| EUSART | 2 |
| MSSP (SPI/I2C) | 1 |
| ECAN Module | Yes (CAN 2.0B) |
| CTMU | Yes |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
PIC18LF65K80T-I/PT 引脚配置
| 引脚 1 | RB2 — PORTB I/O bit 2 |
| 引脚 2 | RB3 — PORTB I/O bit 3 |
| 引脚 3 | RB4 — PORTB I/O bit 4 |
| 引脚 4 | RB5 — PORTB I/O bit 5 / CCP3 |
| 引脚 5 | RB6 — PORTB I/O bit 6 / PGC (ICSP clock) |
| 引脚 6 | RB7 — PORTB I/O bit 7 / PGD (ICSP data) |
| 引脚 7 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| 引脚 8 | VSS — Ground reference |
| 引脚 9 | RC0 — PORTC I/O bit 0 / SOSCO |
| 引脚 10 | RC1 — PORTC I/O bit 1 / SOSCI |
| 引脚 11 | RC2 — PORTC I/O bit 2 / CCP1 |
| 引脚 12 | RC3 — PORTC I/O bit 3 / SCL1 |
| 引脚 13 | RC4 — PORTC I/O bit 4 / SDA1 |
| 引脚 14 | RC5 — PORTC I/O bit 5 / SDO1 |
| 引脚 15 | RC6 — PORTC I/O bit 6 / TX1 |
| 引脚 16 | RC7 — PORTC I/O bit 7 / RX1 |
| 引脚 17 | RD0 — PORTD I/O bit 0 |
| 引脚 18 | RD1 — PORTD I/O bit 1 |
| 引脚 19 | RD2 — PORTD I/O bit 2 |
| 引脚 20 | RD3 — PORTD I/O bit 3 |
| 引脚 21 | RD4 — PORTD I/O bit 4 / ECAN digital input |
| 引脚 22 | RD5 — PORTD I/O bit 5 |
| 引脚 23 | RD6 — PORTD I/O bit 6 / TX2 |
| 引脚 24 | RD7 — PORTD I/O bit 7 / RX2 |
| 引脚 25 | VSS — Ground reference |
| 引脚 26 | VDD — Positive supply voltage |
| 引脚 27 | RE0 — PORTE I/O bit 0 / AN5 |
| 引脚 28 | RE1 — PORTE I/O bit 1 / AN6 |
| 引脚 29 | RE2 — PORTE I/O bit 2 / AN7 |
| 引脚 30 | RE3 — PORTE I/O bit 3 / AN8 |
| 引脚 31 | AVDD — Analog positive supply |
| 引脚 32 | AVSS — Analog ground |
| 引脚 33 | RA0 — PORTA I/O bit 0 / AN0 |
| 引脚 34 | RA1 — PORTA I/O bit 1 / AN1 |
| 引脚 35 | RA2 — PORTA I/O bit 2 / AN2 / VREF- |
| 引脚 36 | RA3 — PORTA I/O bit 3 / AN3 / VREF+ |
| 引脚 37 | RA4 — PORTA I/O bit 4 / AN4 / T0CKI |
| 引脚 38 | RA5 — PORTA I/O bit 5 / AN5 / SS1 |
| 引脚 39 | RA6 — PORTA I/O bit 6 / OSC2 |
| 引脚 40 | RA7 — PORTA I/O bit 7 / OSC1 / CLKI |
| 引脚 41 | VDD — Positive supply voltage |
| 引脚 42 | VSS — Ground reference |
| 引脚 43 | RF0 — PORTF I/O bit 0 / AN16 |
| 引脚 44 | RF1 — PORTF I/O bit 1 / AN17 |
| 引脚 45 | RF2 — PORTF I/O bit 2 / AN18 / CANTX |
| 引脚 46 | RF3 — PORTF I/O bit 3 / AN19 / CANRX |
| 引脚 47 | RF4 — PORTF I/O bit 4 / AN20 |
| 引脚 48 | RF5 — PORTF I/O bit 5 / AN21 / C1OUT |
| 引脚 49 | RF6 — PORTF I/O bit 6 / AN22 / C2OUT |
| 引脚 50 | RF7 — PORTF I/O bit 7 / AN23 |
| 引脚 51 | RG0 — PORTG I/O bit 0 |
| 引脚 52 | RG1 — PORTG I/O bit 1 |
| 引脚 53 | RG2 — PORTG I/O bit 2 |
| 引脚 54 | RG3 — PORTG I/O bit 3 |
| 引脚 55 | RG4 — PORTG I/O bit 4 |
| 引脚 56 | MCLR — Active-low master clear reset input |
| 引脚 57 | VSS — Ground reference |
| 引脚 58 | RB0 — PORTB I/O bit 0 / INT0 |
| 引脚 59 | RB1 — PORTB I/O bit 1 / INT1 |
| 引脚 60 | VDD — Positive supply voltage |
| 引脚 61 | VSS — Ground reference |
| 引脚 62 | RB8 — PORTB I/O bit 8 |
| 引脚 63 | RB9 — PORTB I/O bit 9 |
| 引脚 64 | RB10 — PORTB I/O bit 10 |
典型应用
PIC18LF65K80T-I/PT 适用于 7 应用s: Automotive Body Control Modules, Industrial CAN Sensor Nodes, Capacitive Touch User Interfaces, HVAC Climate Controllers, Medical Instrumentation with CAN, Low-Power IoT Edge Nodes, Consumer Appliance Control Boards.
Automotive Body Control Modules
The PIC18LF65K80T-I/PT is well-suited for automotive body control ECUs because of its integrated hardware ECAN 2.0B module, 11-channel 12-bit ADC for sensor reading, and 1.8-3.6 V wide operating range that tolerates automotive cranking transients with a small regulator. The XLP nanoWatt technology provides sub-100 nA sleep current, enabling wake-on-CAN designs where the body module sleeps until a CAN frame is received. Placed in door modules, seat controllers, or lighting ECUs, this MCU reads switches via ADC and drives MOSFETs via PWM with deterministic latency, while the ECAN peripheral handles bus arbitration and message filtering without CPU load. Compared to larger 32-bit alternatives, the LF65K80 reduces BOM cost by 30-50 percent for sub-network nodes that do not need DSP or graphical capability.
推荐
Industrial CAN Sensor Nodes
For industrial CANopen or DeviceNet sensor nodes, the PIC18LF65K80T-I/PT provides the right blend of peripherals: a 12-bit ADC for accurate transducer digitization, EUSART for RS-485 fallback, MSSP for SPI sensor interfaces, and ECAN for industrial bus communication. The 32 KB Flash accommodates CANopen stack libraries from Microchip, while the 3.6 KB RAM supports process data objects without external memory. Placed in a pressure transmitter or temperature node, the MCU reads the sensor via ADC, formats the value per CANopen profile, and transmits over ECAN with hardware filtering reducing software overhead. The 1.8 V minimum supply enables 2x AA battery-powered wireless sensor bridges that integrate with a CAN backbone via a small radio module.
推荐
Capacitive Touch User Interfaces
The PIC18LF65K80T-I/PT integrates the CTMU peripheral that pairs a constant-current source with timer capture, enabling robust capacitive touch sensing without external ICs. This allows cost-effective touch keypads, sliders, and proximity sensors in appliances, security panels, and consumer products. The CTMU measures capacitance by injecting a known current for a precise time interval and reading the resulting voltage on ADC, providing sub-pF resolution. Combined with the XLP sleep modes below 100 nA, a battery-powered touch remote can run for years. Placed behind a glass or acrylic panel, the MCU reads up to 11 touch channels and communicates via EUSART or ECAN, replacing dedicated touch ICs with a general-purpose MCU that also handles system logic.
推荐
HVAC Climate Controllers
The PIC18LF65K80T-I/PT's 11-channel 12-bit ADC and PWM outputs make it suitable for HVAC climate controllers that read temperature from multiple NTC sensors and drive fans, dampers, or valve actuators. The 64 MHz operation provides enough throughput for PID loops and filter computations, while 32 KB Flash holds application firmware plus lookup-table-based NTC linearization. The hardware ECAN integrates the controller into a building automation backbone (BACnet over CAN, KNX, or proprietary), and the wide 1.8-3.6 V supply tolerates 24 V industrial rails when paired with a simple LDO. Compared to PLC-based solutions, this MCU cuts system cost while delivering deterministic real-time control for thermal regulation.
推荐
Medical Instrumentation with CAN
Medical devices such as patient monitors, infusion pumps, and diagnostic instruments benefit from the PIC18LF65K80T-I/PT's deterministic 8-bit architecture, hardware ECAN for bed-to-bed network communication, and 12-bit ADC for analog signal acquisition. The 1.8 V minimum supply allows battery-powered portable designs, while the Industrial temperature grade supports typical clinical environments. Placed in an infusion pump module, the MCU reads flow rate via ADC, drives a stepper or DC motor via PWM, and reports status over ECAN to a central monitor. Note that this part is not medical-grade qualified - for FDA-regulated designs, additional qualification of the complete system is required.
推荐
Low-Power IoT Edge Nodes
For battery-powered IoT edge nodes with CAN or UART backhaul, the PIC18LF65K80T-I/PT's nanoWatt XLP technology delivers sleep currents below 100 nA and active currents in the microampere range at low MHz, enabling multi-year battery life. The 32 KB Flash holds sensor fusion logic, while 3.6 KB RAM supports small protocol buffers. Placed in a remote environmental sensor, the MCU wakes periodically, reads temperature/humidity via I2C, logs data, transmits over EUSART to a LoRa or NB-IoT module, and returns to sleep. Compared to higher-end 32-bit MCUs, this 8-bit part reduces sleep current by an order of magnitude at similar BOM cost for simple sensor edge applications.
推荐
Consumer Appliance Control Boards
The PIC18LF65K80T-I/PT's combination of 32 KB Flash, 12-bit ADC, PWM outputs, and ECAN support makes it a strong fit for white goods control boards such as washing machines, dishwashers, and refrigerators that need user-interface handling plus motor or compressor control. The 54 I/O pins accommodate keypads, displays via SPI, and multiple sensor inputs, while the wide voltage range tolerates rectified mains supplies with a small regulator. Placed in a washing-machine controller, the MCU drives a 3-phase inverter via PWM, reads water level and temperature via ADC, and reports diagnostics over ECAN. Compared to legacy 8-bit MCUs without ECAN, this part enables connected appliance features without an extra communication chip.
推荐
推荐产品汇总
工程参考数据： PIC18LF65K80T-I/PT ——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 | PIC18LF65K80-I/PT | PIC18F65K80T-I/PT | PIC18F66K80T-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same |
| Supply Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Maximum CPU Speed | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS |
| Flash Program Memory | 32 KB | 32 KB | 32 KB | 64 KB |
| Data RAM | 3.6 KB | 3.6 KB | 3.6 KB | 3.6 KB |
| Data EEPROM | 1 KB | 1 KB | 1 KB | 1 KB |
| ECAN Module | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) |
| ADC | 11-ch, 12-bit | 11-ch, 12-bit | 11-ch, 12-bit | 11-ch, 12-bit |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| Price (qty 1, USD) | 6.85 | 7.10 (tray premium) | 6.70 | 7.20 |
关键差异点
- Lowest minimum supply voltage in PIC18 K80 family （对比 PIC18F65K80T-I/PT)
- Hardware ECAN integrated （对比 PIC18LF45K80T-I/ML)
- Wide ADC channel count for sensor fusion （对比 PIC18F66K80T-I/PT)
设计说明
Decouple each VDD pin with a 100 nF ceramic capacitor placed within 5 mm of the pin, plus a bulk 10 uF tantalum or ceramic on the main supply rail. For battery-powered designs, use the internal LFINTOSC (31 kHz) for sleep wake-up timing and switch to HFINTOSC only when processing, minimizing average current. The XLP Sleep mode draws sub-100 nA typical, but only if all I/O are configured as analog or high-impedance to avoid parasitic current paths.
Estimated: At maximum CPU activity (64 MHz, all peripherals on, all I/O switching), the 64-pin TQFP draws roughly 15-20 mA from 3.3 V, dissipating ~50-66 mW. With theta_JA around 50 C/W for TQFP-64 on a 4-layer JEDEC test board, junction temperature rise is ~3-4 C above ambient - no heatsink required. For high-temperature environments (>70 C ambient), derate peripheral activity or use the F-version with relaxed thermal limits.
Route ICSP lines (PGC/PGD on RB6/RB7, MCLR) so a 6-pin header or tag-connect clip can access them for in-circuit programming without desoldering the MCU. Keep the ECAN CANTX/CANRX traces short and impedance-matched to 120 ohm differential, with a split termination at the cable end. Per IPC-7351, the TQFP-64 land pattern requires 0.5 mm pitch pads with proper solder mask dam definition to prevent bridging during reflow.
Do not exceed 3.6 V on any VDD pin - the LF K80 is rated 1.8 V to 3.6 V, and 5 V input damages the silicon. When migrating from F-version (2.0 V to 5.5 V) to LF-version, verify all I/O signals and supply rails are below 3.6 V. Also, ensure the MCLR pin has a 10 kohm pull-up to VDD and a 100 nF cap to ground for proper reset; floating MCLR is a common cause of intermittent code failures.
合规信息
RoHS and REACH compliant per Microchip product page. Industrial temperature grade (-40 C to +85 C). Not AEC-Q100 qualified - the K80 family targets industrial and consumer, while automotive-grade PICs are in the PIC18F K40-Q1 family.
