PIC18LF4480-I/ML - 8-bit MCU 16KB Flash ECAN 44-QFN | Microchip
料号： PIC18LF4480-I/ML ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.55 | $65.50 |
| 100 | $5.88 | $588.00 |
| 500 | $5.3 | $2,650.00 |
| 1,000 | $4.78 | $4,780.00 |
PIC18LF4480-I/ML 概述
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU core, program and data memory, digital I/O, and a set of on-chip peripherals such as timers, ADC, and communication controllers. Within the PIC taxonomy it sits as PIC18 -> 8-bit MCU -> microcontroller -> embedded IC -> semiconductor. The PIC18LF4480 belongs to the PIC18F4480 family, which was designed to bring cost-effective ECAN connectivity to industrial and automotive CAN nodes while keeping the developer-friendly PIC18 instruction set.
Key features include 16 KB Flash program memory with self-programmability, 768 bytes SRAM, 256 bytes EEPROM, an Enhanced CAN module supporting CAN 2.0B, a 10-bit ADC with up to 11 channels, two Enhanced USART modules, one MSSP (SPI/I2C) module, and nanoWatt power-saving modes that drop Iq to below 1 uA in sleep. The part supports an internal 8 MHz oscillator and an external clock up to 40 MHz, yielding 10 MIPS execution.
Typical applications include CAN nodes on the CAN bus, automotive CAN nodes with body/comfort/chassis networking, industrial CAN nodes in PLCs, sensor and actuator networks using ECAN. The wide operating voltage and industrial temperature grade (-40C to +85C) also suit process-control and building-automation CAN nodes.
When designing with this device, ensure your programmer/debugger supports the ICSP interface and that you budget for the 44-QFN thermal pad soldering to the PCB ground plane for proper heat sinking and electrical reference.
直接替换替代料： PIC18LF4480-I/ML ——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： PIC18LF4480-I/ML （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, Timers, Program Memory (Flash), ADC.
快速对比工具——选择替代料号进行并排对比：
PIC18F4480-I/ML
✅ 直接替换✓ 有现货
$4.89 / 个
查看数据手册 →PIC18LF4480T-I/ML
✅ 直接替换✓ 有现货
$4.72 / 个
查看数据手册 →PIC18LF4580-I/ML
✅ 直接替换📋 参考替代料（不在目录中）
PIC18LF46K80T-I/ML
✅ 直接替换📋 参考替代料（不在目录中）
PIC18F4580-I/ML
✅ 直接替换📋 参考替代料（不在目录中）
PIC18LF4480-I/ML 最大额定值与电气特性
| Core | PIC18 (8-bit RISC) |
| Program Memory | 16 KB Flash |
| RAM | 768 bytes |
| EEPROM | 256 bytes |
| Supply Voltage (Vdd) | 2.0 V to 5.5 V |
| Typical Operating Voltages | 2.5 V / 3.3 V / 5 V |
| Maximum CPU Clock | 40 MHz (10 MIPS) |
| I/O Pins | 36 |
| ADC | 10-bit, up to 11 channels |
| CAN | 1x Enhanced CAN (ECAN, CAN 2.0B) |
| UART | 2x Enhanced USART |
| SPI / I2C | 1x MSSP (SPI / I2C) |
| Timers | 4 (Timer0/1/2/3) |
| 封装 | 44-pin QFN (ML) with exposed pad |
| 工作温度 | -40 C to +85 C (Industrial) |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 (168 hours) |
| RoHS 状态 | Compliant |
| Lead-Free / Halogen-Free | Yes / Yes |
PIC18LF4480-I/ML 引脚配置
| 引脚 1 | RA0/AN0 — Port A bit 0 / ADC input channel 0 |
| 引脚 2 | RA1/AN1 — Port A bit 1 / ADC input channel 1 |
| 引脚 3 | RA2/AN2/VREF- — Port A bit 2 / ADC input / ADC VREF- |
| 引脚 4 | RA3/AN3/VREF+ — Port A bit 3 / ADC input / ADC VREF+ |
| 引脚 5 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| 引脚 6 | RA5/AN4/SS — Port A bit 5 / ADC input / SPI slave select |
| 引脚 7 | RA6 — Port A bit 6 / oscillator pin |
| 引脚 8 | RA7 — Port A bit 7 / oscillator pin |
| 引脚 9 | Vss — Ground reference |
| 引脚 10 | Vdd — Positive supply (2.0-5.5V) |
| 引脚 11 | RB0/INT0 — Port B bit 0 / external interrupt 0 |
| 引脚 12 | RB1/INT1 — Port B bit 1 / external interrupt 1 |
| 引脚 13 | RB2/INT2 — Port B bit 2 / external interrupt 2 |
| 引脚 14 | RB3/CCP2 — Port B bit 3 / CCP2 PWM/capture |
| 引脚 15 | RB4 — Port B bit 4 |
| 引脚 16 | RB5 — Port B bit 5 |
| 引脚 17 | RB6/ICSPCLK — Port B bit 6 / ICSP clock |
| 引脚 18 | RB7/ICSPDAT — Port B bit 7 / ICSP data |
| 引脚 19 | Vss — Ground reference |
| 引脚 20 | Vdd — Positive supply (2.0-5.5V) |
| 引脚 21 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator out / clock in |
| 引脚 22 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer1 oscillator in / CCP2 |
| 引脚 23 | RC2/CCP1 — Port C bit 2 / CCP1 PWM/capture |
| 引脚 24 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| 引脚 25 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| 引脚 26 | RC5/SDO — Port C bit 5 / SPI data out |
| 引脚 27 | RC6/TX1/CK1 — Port C bit 6 / USART1 TX / clock |
| 引脚 28 | RC7/RX1/DT1 — Port C bit 7 / USART1 RX / data |
| 引脚 29 | Vss — Ground reference |
| 引脚 30 | Vdd — Positive supply (2.0-5.5V) |
| 引脚 31 | RD0 — Port D bit 0 |
| 引脚 32 | RD1 — Port D bit 1 |
| 引脚 33 | RD2 — Port D bit 2 |
| 引脚 34 | RD3 — Port D bit 3 |
| 引脚 35 | RD4 — Port D bit 4 |
| 引脚 36 | RD5 — Port D bit 5 |
| 引脚 37 | RD6 — Port D bit 6 |
| 引脚 38 | RD7 — Port D bit 7 |
| 引脚 39 | Vss — Ground reference |
| 引脚 40 | Vdd — Positive supply (2.0-5.5V) |
| 引脚 41 | RE0/RD/AN5 — Port E bit 0 / CAN RX / ADC input |
| 引脚 42 | RE1/WR/AN6 — Port E bit 1 / CAN TX / ADC input |
| 引脚 43 | RE2/CS/AN7 — Port E bit 2 / CAN CS / ADC input |
| 引脚 44 | RE3/MCLR — Port E bit 3 / Master Clear (reset, active-low) |
| 引脚 45 | EP (Thermal Pad) — Exposed thermal pad - solder to PCB ground for thermal dissipation |
典型应用
PIC18LF4480-I/ML 适用于 6 应用s: Industrial CAN Node, Automotive Body Electronics, Building Automation Sensor Network, Process Control and Instrumentation, Medical Device CAN Interface, Industrial Sensor and Actuator Networks.
Industrial CAN Node
The PIC18LF4480-I/ML is a classic choice for industrial CAN nodes on a CAN bus, where its integrated Enhanced CAN module implements CAN 2.0B active protocol with standard and extended identifiers. With 16 KB Flash for application logic, 768 bytes of RAM for protocol buffers, and 36 I/O for sensor/actuator interfacing, the device handles a single CAN node with adequate headroom. Operate from 3.3 V to keep noise margins clean on long CAN trunks.
推荐
Automotive Body Electronics
For automotive CAN nodes in body and comfort domains, the PIC18LF4480-I/ML offers ECAN connectivity, 10-bit ADC for sensor reading, and industrial -40 C to +85 C temperature range. Use it to drive seat controllers, HVAC blend doors, mirror modules, and lighting controllers where a small 44-QFN footprint saves PCB space. For under-hood or safety-critical systems, migrate to the AEC-Q100 qualified variants.
推荐
Building Automation Sensor Network
In building automation CAN nodes (HVAC, lighting, access control), the PIC18LF4480-I/ML supports wide-Vdd operation down to 2.0 V, enabling battery-backed sensor nodes that wake on CAN traffic. The 16 KB Flash stores protocol stacks (CANopen, DeviceNet slave) plus application code, and 36 I/O handle keypads, displays, and relays. nanoWatt sleep modes drop Iq to <1 uA for energy-harvested nodes.
推荐
Process Control and Instrumentation
For process control and instrumentation CAN nodes, the PIC18LF4480-I/ML brings deterministic 10 MIPS performance, a 10-bit ADC with up to 11 channels, and ECAN for backplane networking in PLC racks. Industrial temperature grade and wide-Vdd tolerance handle 24V industrial bus systems with simple linear regulation. The 44-QFN exposed pad aids thermal dissipation in enclosed cabinets.
推荐
Medical Device CAN Interface
In medical device CAN nodes (patient monitors, infusion pumps, lab analyzers), the PIC18LF4480-I/ML offers a reliable 8-bit core for sensor data acquisition with ECAN backhaul to a central station. Its wide-Vdd range simplifies battery-management designs, while the 10-bit ADC is sufficient for vital-sign analog front-ends. For higher-performance signal paths, pair with external 16-bit ADCs over the MSSP SPI port.
推荐
Industrial Sensor and Actuator Networks
The PIC18LF4480-I/ML anchors distributed CAN nodes in industrial sensor and actuator networks, where each node reads local sensors via the 10-bit ADC, drives actuators via PWM/CCP, and reports over ECAN. With 36 I/O and four 16-bit timers, a single MCU can multiplex multiple sensing channels. The exposed-pad QFN package keeps the board footprint under 7x7 mm.
推荐
推荐产品汇总
工程参考数据： PIC18LF4480-I/ML ——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 | PIC18F4480-I/ML | PIC18LF4480T-I/ML | PIC18LF4580-I/ML | PIC18LF46K80T-I/ML | PIC18F4580-I/ML |
|---|---|---|---|---|---|---|
| Package | 44-pin QFN (ML) | 44-pin QFN (ML) - same | 44-pin QFN (ML) - same | 44-pin QFN (ML) - same | 44-pin QFN (ML) - same | 44-pin QFN (ML) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 16 KB Flash | 16 KB Flash | 16 KB Flash | 32 KB Flash | 64 KB Flash | 32 KB Flash |
| RAM | 768 bytes | 768 bytes | 768 bytes | 1536 bytes | 3648 bytes | 1536 bytes |
| Supply Voltage | 2.0 V to 5.5 V | 4.2 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 1.8 V to 3.6 V | 4.2 V to 5.5 V |
| CAN Module | ECAN (CAN 2.0B) | ECAN (CAN 2.0B) | ECAN (CAN 2.0B) | ECAN (CAN 2.0B) | ECAN (CAN 2.0B) | ECAN (CAN 2.0B) |
| Max CPU Clock | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 64 MHz (16 MIPS) | 40 MHz (10 MIPS) |
| ADC | 10-bit, 11 channels | 10-bit, 11 channels | 10-bit, 11 channels | 10-bit, 11 channels | 12-bit, 11 channels | 10-bit, 11 channels |
| Packaging | Tube (industrial) | Tube (industrial) | Tape & Reel (industrial) | Tube (industrial) | Tape & Reel (industrial) | Tube (industrial) |
关键差异点
- Wide-Vdd operation down to 2.0 V vs 4.2 V on F variant （对比 PIC18F4480-I/ML)
- Same 44-QFN footprint across the entire LF/F 4480/4580 family （对比 PIC18LF4580-I/ML)
- Industrial temperature grade standard (no AEC-Q100) （对比 PIC18F4580-I/ML)
设计说明
The 44-pin QFN (ML) package has an exposed thermal pad (pin 45) that MUST be soldered to the PCB ground plane for both thermal dissipation and electrical reference. Use an array of thermal vias under the pad to conduct heat into inner copper layers. Inadequate soldering will cause erratic operation, overheating, and reduced ADC accuracy due to ground bounce.
Decouple every Vdd/Vss pair (pins 10/9, 20/19, 30/29, 40/39) with a 100 nF ceramic capacitor placed within 3 mm of the pin. Add a single 10 uF bulk tantalum or ceramic capacitor near the MCU to handle peak current transients when the ECAN module and timers switch simultaneously. The 'LF' variant operates down to 2.0 V but still requires stable Vdd for ADC accuracy.
Do not confuse the PIC18LF4480 (wide-Vdd 2.0-5.5 V) with the PIC18F4480 (4.2-5.5 V) - using the F variant on a 3.3 V rail will cause undefined behavior. Also verify that your ICSP programmer (PICkit 3, MPLAB ICD 4) is configured for the correct Vdd; the 'LF' part needs the low-voltage programming entry sequence enabled in the configuration bits.
Keep the CANRX (RE0/RA5 alt) and CANTX (RE1/RA5 alt) traces short and route them away from switching converter nodes. Use a 120-ohm termination resistor at each end of the CAN bus and place the MCP2551 transceiver within 20 mm of the MCU. Implement a TVS diode (e.g., SMAJ24CA) on the bus for transient protection in industrial environments.
合规信息
RoHS compliant per Microchip product page. Industrial temperature grade only; not AEC-Q100 qualified. Use automotive-grade PIC18F4580-I/ML variants for AEC-Q100 applications.
