PIC18LF4580T-I/ML - 8-bit 40MHz 32KB Flash MCU w/ CAN | Microchip
料号： PIC18LF4580T-I/ML ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $9.2 | $92.00 |
| 100 | $8.5 | $850.00 |
| 500 | $7.65 | $3,825.00 |
| 1,000 | $6.95 | $6,950.00 |
PIC18LF4580T-I/ML 概述
Key specifications include 32 KB of Flash program memory (16K x 16 words), 1.5 KB of SRAM data memory, and 256 bytes of EEPROM. The device integrates a 10-bit ADC with up to 13 channels, two CCP modules, an Enhanced USART, MSSP for SPI and I2C, and a CAN 2.0B controller compliant with ISO 11898.
A PIC microcontroller is an 8-bit Harvard-architecture RISC device built around a small instruction set and separate program/data buses, designed for deterministic embedded control. PIC18 family devices add 16-bit instructions, linear memory, and richer peripherals while retaining the small footprint and low power consumption that made the family popular. The PIC18LF4580 specifically targets CAN-enabled industrial nodes such as automotive body controllers, sensor gateways, and factory automation peripherals.
The LF prefix indicates a wide VDD operating range of 2.0 V to 5.5 V, allowing direct battery and 3.3 V regulator operation. Ten oscillator modes including internal RC and PLL support flexible clocking. The CAN 2.0B module, ECAN with DeviceNet configuration, and three maskable interrupt sources enable deterministic real-time response for time-critical industrial networks. NanoWatt power management provides idle, sleep, and Run mode current profiles suitable for battery-backed nodes.
Typical applications include CAN node endpoints in vehicle body and chassis networks, industrial sensor hubs, HVAC controllers, building automation nodes, and low-power telemetry with CAN interface. The 44-pin QFN (8x8 mm) package supports compact PCB layouts where a TQFP footprint is undesirable.
Design consideration: when migrating PIC18F4580 to LF, verify that peripheral driver stack supports the lower 2.0 V rail and confirm CAN bus transceiver selection matches the LF VDD range. Compared with newer PIC18 K-series, this LF4580 offers simpler peripherals and wider ecosystem code support but draws more active current.
This page synthesizes distributor pricing, verified drop-in alternatives from Microchip's PIC18 family, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： PIC18LF4580T-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： PIC18LF4580T-I/ML （相同外形与封装尺寸） ——差异在于 Package, Timers, Program Memory (Flash), RoHS Status, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
PIC18LF4580-I/ML
✅ 直接替换📋 参考替代料（不在目录中）
PIC18LF4580T-I/PT
✅ 直接替换✓ 有现货
$4.32 / 个
查看数据手册 →PIC18F4580T-I/ML
✅ 直接替换✓ 有现货
$5.1 / 个
查看数据手册 →PIC18LF4585T-I/ML
✅ 直接替换✓ 有现货
$5.83 / 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 →PIC18LF4553-I/ML
✅ 直接替换✓ 有现货
$5.1 / 个
查看数据手册 →PIC18LF4580T-I/ML 最大额定值与电气特性
| Core | PIC18 8-bit RISC |
| Program Memory | 32 KB Flash (16K x 16) |
| Data RAM | 1.5 KB |
| EEPROM | 256 bytes |
| 最大时钟频率 | 40 MHz |
| Operating Voltage (VDD) | 2.0 V to 5.5 V |
| Supply Voltage Range (LF) | 2.0 V to 5.5 V |
| ADC | 10-bit, up to 13 channels |
| 封装 | 44-pin QFN (8x8 mm) |
| 安装类型 | Surface Mount |
| 工作温度 | -40C to +85C (Industrial) |
| Connectivity | CAN 2.0B, I2C, SPI, UART/USART (Enhanced) |
| CAN Module | ECAN, ISO 11898-1 compliant |
| I/O Pins | 36 |
| CCP Modules | 2 (Capture/Compare/PWM) |
| Timers | 4 (Timer0-Timer3) |
| RoHS 状态 | Compliant |
PIC18LF4580T-I/ML 引脚配置
| 引脚 1 | RC1/T1OSI/CCP2 — I/O port / Timer1 oscillator input / CCP2 output |
| 引脚 2 | RC2/CCP1 — I/O port / CCP1 output |
| 引脚 3 | RC3/SCK/SCL — I/O port / SPI clock / I2C clock |
| 引脚 4 | RC4/SDI/SDA — I/O port / SPI data in / I2C data |
| 引脚 5 | RC5/SDO — I/O port / SPI data out |
| 引脚 6 | RC6/TX/CK — I/O port / USART async transmit / sync clock |
| 引脚 7 | RC7/RX/DT — I/O port / USART async receive / sync data |
| 引脚 8 | RD0/C1IN+ — I/O port / Comparator 1 input+ |
| 引脚 9 | RD1/C1IN- — I/O port / Comparator 1 input- |
| 引脚 10 | RD2/C2IN+ — I/O port / Comparator 2 input+ |
| 引脚 11 | RD3/C2IN- — I/O port / Comparator 2 input- |
| 引脚 12 | RB0/INT0 — I/O port / External interrupt 0 |
| 引脚 13 | RB1/INT1 — I/O port / External interrupt 1 |
| 引脚 14 | RB2/INT2 — I/O port / External interrupt 2 |
| 引脚 15 | RB3/INT3 — I/O port / External interrupt 3 |
| 引脚 16 | RB4 — I/O port |
| 引脚 17 | RB5 — I/O port |
| 引脚 18 | RB6/PGC — I/O port / ICSP clock |
| 引脚 19 | RB7/PGD — I/O port / ICSP data |
| 引脚 20 | VDD — Positive supply voltage (2.0-5.5 V) |
| 引脚 21 | VSS — Ground reference |
| 引脚 22 | RA0/AN0 — I/O port / ADC input 0 |
| 引脚 23 | RA1/AN1 — I/O port / ADC input 1 |
| 引脚 24 | RA2/AN2/VREF- — I/O port / ADC input 2 / ADC VREF- |
| 引脚 25 | RA3/AN3/VREF+ — I/O port / ADC input 3 / ADC VREF+ |
| 引脚 26 | RA4/T0CKI — I/O port / Timer0 clock input |
| 引脚 27 | RA5/AN4/SS — I/O port / ADC input 4 / SPI slave select |
| 引脚 28 | RE0/RD/AN5 — I/O port / Read control for parallel port / ADC input 5 |
| 引脚 29 | RE1/WR/AN6 — I/O port / Write control for parallel port / ADC input 6 |
| 引脚 30 | RE2/CS/AN7 — I/O port / Chip select for parallel port / ADC input 7 |
| 引脚 31 | VDD — Positive supply voltage (2.0-5.5 V) |
| 引脚 32 | VSS — Ground reference |
| 引脚 33 | OSC1/CLKI/RA7 — Oscillator input / External clock input / I/O port |
| 引脚 34 | OSC2/CLKO/RA6 — Oscillator output / Clock output / I/O port |
| 引脚 35 | RC0/T1OSO/T13CKI — I/O port / Timer1 oscillator output / Timer1/Timer3 clock |
| 引脚 36 | C1OUT — Comparator 1 output |
| 引脚 37 | C2OUT — Comparator 2 output |
| 引脚 38 | RF0/CANRX — I/O port / CAN bus receive |
| 引脚 39 | RF1/CANTX — I/O port / CAN bus transmit |
| 引脚 40 | RF2 — I/O port |
| 引脚 41 | RF3 — I/O port |
| 引脚 42 | RF4 — I/O port |
| 引脚 43 | RF5 — I/O port |
| 引脚 44 | RF6 — I/O port |
典型应用
PIC18LF4580T-I/ML 适用于 6 应用s: CAN Node in Automotive Body Network, Industrial Sensor Hub with CAN Interface, Building Automation Controller, Low-Power Telemetry Node, Medical Device Communication Interface, HVAC Network Bridge.
CAN Node in Automotive Body Network
The PIC18LF4580T-I/ML serves as a CAN endpoint microcontroller in automotive body controller modules, with ECAN 2.0B compliant to ISO 11898-1. The integrated CAN module supports standard 11-bit and extended 29-bit identifiers plus three transmit buffers, allowing deterministic message arbitration for door modules, seat controllers, and lighting nodes. With 32 KB Flash and 1.5 KB RAM, the LF4580 holds a typical CAN stack plus body-control application code; the 2.0-5.5 V range lets the device run from 12 V battery via an LDO. The QFN-44 footprint allows compact PCB placement inside distributed body modules where board area is at a premium.
推荐
Industrial Sensor Hub with CAN Interface
In factory automation, the PIC18LF4580T-I/ML aggregates analog sensor inputs via its 10-bit ADC (up to 13 channels) and broadcasts readings over CAN to a PLC or gateway. The 40 MHz core provides ample MIPS for filter algorithms and CAN message composition in the same loop. The industrial -40C to +85C rating and 2.0-5.5 V supply allow direct deployment on 24 V-bus powered sensor modules after a simple buck regulator. The QFN-44 package supports reflow-compatible surface mount on standard FR4, and the wide voltage range simplifies integration with both legacy 5 V and modern 3.3 V sensor signal chains.
推荐
Building Automation Controller
The PIC18LF4580T-I/ML fits HVAC and building-automation controllers that require deterministic CAN or UART communication with multiple sensor inputs. The Enhanced USART and MSSP (SPI/I2C) enable redundant communications to thermostats, damper actuators, and air-quality sensors. NanoWatt power management provides sleep currents suitable for battery-backed thermostats, while the 32 KB Flash accommodates HVAC state machines and schedule firmware. The 44-QFN package supports slim thermostat backplates where component height is constrained, and the 2.0-5.5 V range permits direct operation from backup battery rails during power-loss events.
推荐
Low-Power Telemetry Node
Battery-powered remote telemetry nodes benefit from the PIC18LF4580T-I/ML's NanoWatt sleep modes and 2.0-5.5 V operating range, which allows direct Li-ion or 2xAA battery operation. The 10-bit ADC samples environmental or asset-tracking sensors while the ECAN module wakes the node on a CAN bus event to transmit telemetry. The wide voltage range enables operation down to the cutoff voltage of common primary battery chemistries without boost conversion, and the 32 KB Flash fits small TCP-style or proprietary CAN telemetry stacks. The QFN-44 package suits compact remote enclosures where PCB real estate is critical.
推荐
Medical Device Communication Interface
In medical instrumentation, the PIC18LF4580T-I/ML acts as a CAN-bridged communication controller between sensors (temperature, pressure, flow) and a central monitor. The 32 KB Flash holds deterministic IEC 62304-class B firmware for simple bedside modules, while the ECAN module ensures error-detected data transport. The industrial temperature range supports clinical environment operation, and the LF variant's 2.0 V minimum allows battery-backed operation during patient transport. The QFN-44 footprint enables miniaturized PCBs inside portable monitoring equipment.
推荐
HVAC Network Bridge
Commercial HVAC systems use the PIC18LF4580T-I/ML as a bridging controller between BACnet/Modbus RTU field networks and CAN-equipped damper and compressor modules. The Enhanced USART and MSSP peripherals handle multiple serial protocols simultaneously, while the ECAN module drives deterministic control of variable-speed compressor drives. The 32 KB Flash holds bridging protocol stacks plus scheduling logic, and the 2.0-5.5 V range supports 24 V AC-bus powered controller boards. The QFN-44 package fits inside compact rooftop unit control enclosures.
推荐
推荐产品汇总
工程参考数据： PIC18LF4580T-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 | PIC18LF4580-I/ML | PIC18LF4580T-I/PT | PIC18F4580T-I/ML | PIC18LF4585T-I/ML |
|---|---|---|---|---|---|
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-TQFP (10x10 mm) - different | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 48 KB |
| RAM | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB | 3.3 KB |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 4.2 V to 5.5 V | 2.0 V to 5.5 V |
| CAN Module | ECAN 2.0B | ECAN 2.0B | ECAN 2.0B | ECAN 2.0B | ECAN 2.0B |
| Max Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| ADC | 10-bit, 13 ch | 10-bit, 13 ch | 10-bit, 13 ch | 10-bit, 13 ch | 10-bit, 13 ch |
| Temperature Range | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
关键差异点
- Wide 2.0 V to 5.5 V operating range (LF variant) （对比 PIC18F4580T-I/ML)
- Compact 44-QFN (8x8 mm) package option （对比 PIC18LF4580T-I/PT (TQFP-44))
- On-chip ECAN 2.0B controller with DeviceNet configuration （对比 PIC18LF4553-I/ML)
设计说明
The PIC18LF4580T-I/ML accepts 2.0 V to 5.5 V on VDD, allowing direct operation from 3.3 V LDOs or 2xAA cells. Place a 100 nF decoupling capacitor as close as possible to each VDD pin (pins 20 and 31), and a bulk 10 uF tantalum or ceramic near the supply pin. For noise-sensitive ADC sampling, add a ferrite bead between digital VDD and AVDD if the design separates analog and digital rails.
Route the CANRX/CANTX pins (RF0/RF1) as a short differential pair to the MCP2551 or similar transceiver, keeping the trace length under 30 mm and matched within 5 mm. Keep the OSC1/OSC2 traces short and surround them with a ground pour to minimize EMI coupling into the CAN bus. Place the 44-QFN exposed pad (EP) with a thermal via array (4-9 vias to internal ground plane) for heat dissipation.
Do not exceed 5.5 V on any VDD pin even when the device is in reset - voltage transients from the CAN bus can latch-up the part. Configure the Configuration Words (CONFIG1L through CONFIG5L/H) to enable the brown-out reset (BOR) at the appropriate VDD threshold for your application. The LF4580 requires the Fosc configuration to match the crystal or oscillator mode selected; using an external clock without proper CONFIG settings can prevent startup.
The CAN bus must be terminated with 120 ohm resistors at each end of the bus segment. The MCP2551 or similar transceiver connects between the PIC18LF4580's CANTX/CANRX pins and the bus, providing differential drive and dominant-recessive arbitration. For long bus segments (>10 m), use twisted-pair cabling and verify the bit timing configuration (BRP, PropSeg, PhaseSeg1, PhaseSeg2) matches the bus length per the CAN 2.0B bit timing rules.
合规信息
RoHS compliant per Microchip product page; not AEC-Q100 qualified (industrial grade only). Lead-free (Pb-free) reflow-compatible.