PIC18LF4580T-I/PT - 8-bit PIC MCU, 32KB Flash, 40MHz, 44-TQFP
料号： PIC18LF4580T-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.45 | $64.50 |
| 100 | $5.71 | $571.00 |
| 500 | $4.95 | $2,475.00 |
| 1,000 | $4.32 | $4,320.00 |
PIC18LF4580T-I/PT 概述
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and configurable peripherals. The PIC18 family is Microchip's high-performance 8-bit architecture, positioned between the cost-optimized PIC16 family and the 16-bit dsPIC/PIC24 families. PIC18 MCUs typically include a hardware multiplier, prioritized interrupt controller, and a modified Harvard bus that lets the CPU read program memory as data through a table-read mechanism. They target embedded control applications that need deterministic response, low power, and a rich peripheral set without the cost of an ARM Cortex-M part.
Key features of the PIC18LF4580T-I/PT include 36 digital I/O pins, dual USART, MSSP (SPI/I2C), a parallel slave port, CTMU for capacitive touch or general current-source measurement, and nanoWatt Technology modes (Idle, Sleep, Low-Power Sleep, and Deep Sleep) that drop quiescent current below 1 uA in deep sleep. The 'LF' variant targets low-voltage 2.0V operation, whereas the standard PIC18F4580 requires 4.2V minimum VDD; both share the same instruction set, peripheral set, and pinout, simplifying migration.
The ECAN controller implements CAN 2.0B active with hardware acceptance filters, time-stamping, and multiple buffers, which is unusual at this price point and makes the part a strong fit for industrial networking. The 10-bit ADC supports up to 13 input channels with automatic acquisition and a 100 ks/s aggregate throughput, while CTMU enables capacitive-touch keypads, temperature measurement with a thermistor, or precision timing.
Typical applications include CAN-based industrial automation, automotive body and chassis ECUs, building automation nodes, HVAC controllers, and small embedded control boards where 32KB of Flash and ECAN communication outweigh the need for a 32-bit core. The TQFP-44 package suits hand-solderable prototypes and surface-mount production lines alike.
When designing with this part, configure the CONFIG words in MPLAB X IDE for the target oscillator and required peripherals, and always hold MCLR high through a 10 kohm pull-up. Decouple VDD/VSS with a 100 nF ceramic capacitor placed within 5 mm of each pin pair.
This page synthesizes distributor pricing, drop-in alternatives, and design notes not found on any single manufacturer or distributor page, giving engineers and buyers a single reference for the PIC18LF4580T-I/PT.
直接替换替代料： PIC18LF4580T-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： PIC18LF4580T-I/PT （相同外形与封装尺寸） ——差异在于 Package, Timers, Core Architecture, ADC, I/O Pins.
快速对比工具——选择替代料号进行并排对比：
PIC18LF4580-I/PT
✅ 直接替换✓ 有现货
$5.65 / 个
查看数据手册 →PIC18LF4480T-I/PT
✅ 直接替换✓ 有现货
$4.1 / 个
查看数据手册 →PIC18LF4520T-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC18LF4523T-I/PT
✅ 直接替换✓ 有现货
$4.3 / 个
查看数据手册 →PIC18LF4525T-I/PT
✅ 直接替换✓ 有现货
$4.78 / 个
查看数据手册 →PIC18LF4580T-I/PT 最大额定值与电气特性
| Core | PIC18 (8-bit RISC) |
| Program Memory (Flash) | 32 KB (16K x 16) |
| RAM | 1536 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 40 MHz (10 MIPS) |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| 工作温度 | -40 C to +85 C (industrial) |
| I/O Pins | 36 |
| ADC | 10-bit, up to 13 channels |
| CAN | ECAN 2.0B active |
| UART | 2x USART (Enhanced) |
| SPI / I2C | 1x MSSP (SPI / I2C master-slave) |
| Timers | Timer0/1/2/3 + WDT |
| 封装 | 44-pin TQFP (10x10 mm) |
| 安装类型 | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| MSL 等级 | 3 |
| RoHS 状态 | Compliant |
PIC18LF4580T-I/PT 引脚配置
| 引脚 1 | MCLR — Master Clear (reset) input, active low |
| 引脚 2 | RA0/AN0 — Port A bit 0 / analog input 0 |
| 引脚 3 | RA1/AN1 — Port A bit 1 / analog input 1 |
| 引脚 4 | RA2/AN2/VREF- — Port A bit 2 / analog input 2 / ADC reference minus |
| 引脚 5 | RA3/AN3/VREF+ — Port A bit 3 / analog input 3 / ADC reference plus |
| 引脚 6 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| 引脚 7 | RA5/AN4 — Port A bit 5 / analog input 4 |
| 引脚 8 | RE0/RD — Port E bit 0 / parallel slave port read |
| 引脚 9 | RE1/WR — Port E bit 1 / parallel slave port write |
| 引脚 10 | RE2/CS — Port E bit 2 / parallel slave port chip select |
| 引脚 11 | VDD — Positive supply voltage |
| 引脚 12 | VSS — Ground reference |
| 引脚 13 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| 引脚 14 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| 引脚 15 | RC0/T1OSO — Port C bit 0 / Timer1 oscillator output |
| 引脚 16 | RC1/T1OSI — Port C bit 1 / Timer1 oscillator input |
| 引脚 17 | RC2/CCP1 — Port C bit 2 / Capture/Compare/PWM 1 |
| 引脚 18 | RC3 — Port C bit 3 / I2C SCL (MSSP) |
| 引脚 19 | RD0 — Port D bit 0 |
| 引脚 20 | RD1 — Port D bit 1 |
| 引脚 21 | RD2 — Port D bit 2 |
| 引脚 22 | RD3 — Port D bit 3 |
| 引脚 23 | RC4 — Port C bit 4 / I2C SDA (MSSP) |
| 引脚 24 | RC5 — Port C bit 5 / SPI SDO (MSSP) |
| 引脚 25 | RC6/TX — Port C bit 6 / USART TX |
| 引脚 26 | RC7/RX — Port C bit 7 / USART RX |
| 引脚 27 | RD4 — Port D bit 4 |
| 引脚 28 | RD5 — Port D bit 5 |
| 引脚 29 | RD6 — Port D bit 6 |
| 引脚 30 | RD7 — Port D bit 7 |
| 引脚 31 | VSS — Ground reference |
| 引脚 32 | VDD — Positive supply voltage |
| 引脚 33 | RB0/INT0 — Port B bit 0 / external interrupt 0 |
| 引脚 34 | RB1/INT1 — Port B bit 1 / external interrupt 1 |
| 引脚 35 | RB2/INT2 — Port B bit 2 / external interrupt 2 |
| 引脚 36 | RB3/CCP2 — Port B bit 3 / Capture/Compare/PWM 2 |
| 引脚 37 | RB4 — Port B bit 4 |
| 引脚 38 | RB5/PGM — Port B bit 5 / LVP programming |
| 引脚 39 | RB6/PGC — Port B bit 6 / ICSP clock |
| 引脚 40 | RB7/PGD — Port B bit 7 / ICSP data |
| 引脚 41 | AVSS — Analog ground |
| 引脚 42 | AVDD — Analog positive supply |
| 引脚 43 | C1OUT — Comparator 1 output (per datasheet) |
| 引脚 44 | C2OUT — Comparator 2 output (per datasheet) |
典型应用
PIC18LF4580T-I/PT 适用于 6 应用s: CAN-based Industrial Automation Nodes, Automotive Body and Chassis ECUs, Building Automation and HVAC Controllers, Industrial Sensor Signal Conditioners, USB-to-CAN Gateway Bridges, Embedded Control with Capacitive Touch UI.
CAN-based Industrial Automation Nodes
The PIC18LF4580T-I/PT is ideal for CAN 2.0B industrial automation nodes because its integrated ECAN controller provides hardware acceptance filters, multiple transmit/receive buffers, and time-stamping without burdening the CPU with bit-banging. With 32 KB Flash and 1536 bytes RAM, the MCU fits complete CANopen or DeviceNet slave stacks for sensors, motor starters, and I/O modules. Its 2.0 V to 5.5 V supply range supports both 24 V industrial bus drops regulated to 3.3 V and legacy 5 V PLC backplanes. The 36 digital I/O pins and 10-bit ADC with 13 channels handle digital sensor reads, PWM control, and analog feedback in a single chip, reducing BOM cost and PCB area compared with discrete CAN solutions.
推荐
Automotive Body and Chassis ECUs
In non-safety automotive body controllers such as door modules, lighting nodes, HVAC controls, and seat controllers, the PIC18LF4580T-I/PT provides the CAN connectivity, GPIO, and ADC performance needed at low cost. Its 40 MHz CPU delivers 10 MIPS, sufficient for CAN stack processing plus body control logic at 1 ms task rates. The industrial -40 C to +85 C temperature range covers cabin environments; for under-hood use, designers should select the automotive-grade PIC18 K-series instead. The 44-TQFP package is hand-solderable for prototype runs while also being compatible with high-volume SMT lines, making it a flexible choice for low-to-mid volume ECU programs.
推荐
Building Automation and HVAC Controllers
Building automation controllers for VAV boxes, damper actuators, and BACnet/Modbus gateway nodes can leverage the PIC18LF4580T-I/PT's combination of ECAN, dual USART, and 10-bit ADC. The dual USART allows simultaneous Modbus RTU master communication on one port and a debug or sensor port on the other. The 32 KB Flash fits BACnet MS/TP or Modbus protocol stacks plus custom application logic; the 1536 bytes RAM is sufficient for typical frame buffers. nanoWatt Technology modes such as Deep Sleep reduce quiescent current below 1 uA, satisfying battery-backed wireless thermostat designs and energy-harvesting sensor nodes that spend most of their time idle.
推荐
Industrial Sensor Signal Conditioners
Industrial 4-20 mA loop-powered transmitters and bridge sensor signal conditioners benefit from the PIC18LF4580T-I/PT's 10-bit ADC with 13 channels, sufficient for strain-gauge bridge readout, RTD linearization, or thermistor temperature sensing. The CTMU peripheral enables precision time measurement for ratiometric capacitive sensing, while the MSSP supports SPI or I2C communication with external ADCs or DACs. Industrial -40 C to +85 C operation and nanoWatt low-power modes support remote, battery-powered field instruments. The 32 KB Flash allows on-chip calibration tables and PID control loops, eliminating an external processor in many loop-powered designs.
推荐
USB-to-CAN Gateway Bridges
USB-to-CAN bridge dongles for laptop-based CAN diagnostics and flashing can use the PIC18LF4580T-I/PT together with an external USB-UART bridge such as the MCP2200 or MCP2221. The PIC18 handles CAN 2.0B frame buffering and protocol translation, while the USB bridge enumerates as a virtual COM port on the host. The 32 KB Flash fits slcan or LAWICEL protocol firmware plus a small command interpreter. The 2.0 V minimum VDD allows operation from USB 5 V with a simple LDO; the 44-TQFP package accommodates hand-soldered prototypes and SMT production alike, ideal for low-volume diagnostic tool manufacturers.
推荐
Embedded Control with Capacitive Touch UI
Appliance and consumer products with capacitive touch keypads, sliders, or proximity wake-up can use the PIC18LF4580T-I/PT's CTMU peripheral for ratiometric capacitive measurement without an external touch controller. The 10-bit ADC with 13 channels supports slider and wheel decoding, while 36 GPIO drive LEDs, relays, and buzzer outputs directly. The 32 KB Flash accommodates Microchip's free mTouch library plus custom UI logic. nanoWatt Deep Sleep keeps standby current below 1 uA, extending battery life in portable appliances and battery-backed thermostats. Industrial temperature range supports refrigerator, oven, and washing machine environments.
推荐
推荐产品汇总
工程参考数据： PIC18LF4580T-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 | PIC18LF4580-I/PT | PIC18LF4480T-I/PT | PIC18LF4520T-I/PT | PIC18LF4523T-I/PT | PIC18LF4525T-I/PT |
|---|---|---|---|---|---|---|
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash | 32 KB | 32 KB | 16 KB (-50%) | 32 KB | 32 KB | 48 KB (+50%) |
| RAM | 1536 B | 1536 B | 768 B (-50%) | 1536 B | 1536 B | 2560 B (+67%) |
| ECAN 2.0B | Yes | Yes | Yes | No | No | No |
| Operating Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Max CPU Speed | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS |
| ADC Channels | 13 x 10-bit | 13 x 10-bit | 13 x 10-bit | 13 x 10-bit | 12 x 10-bit | 13 x 10-bit |
关键差异点
- Integrated ECAN 2.0B controller with hardware acceptance filters （对比 PIC18LF4520T-I/PT)
- 32 KB Flash vs 16 KB on lower-tier variants （对比 PIC18LF4480T-I/PT)
- Industrial -40 C to +85 C operation down to 2.0 V （对比 PIC18F4580-I/PT)
设计说明
The PIC18LF4580T-I/PT has separate analog (AVDD/AVSS) and digital (VDD/VSS) supply pairs. Decouple each pair with a 100 nF ceramic capacitor placed within 5 mm of the corresponding pins, and add a 10 uF bulk capacitor near the regulator output. According to the Microchip datasheet, AVDD must not exceed VDD by more than 0.3 V at any time, including during power-up; route the analog rail through a small ferrite bead for best ADC performance.
Route the high-speed ECAN signals (CANTX/CANRX) as a short differential pair matched to 60 ohm impedance, keep them at least 2 mm away from the oscillator traces, and place the MCP2551/MCP2562 transceiver close to the bus connector. The 40 MHz crystal traces must be short and guarded with a ground pour on both sides to avoid injecting noise into the CAN bus or ADC. Keep ICSP pins PGC/PGD accessible for in-circuit debugging.
The 'LF' suffix indicates low-voltage 2.0 V operation; do not program the CONFIG words with the standard F4580 .hex file because the LF variant has different BOR and LVD thresholds that can cause spurious resets. Always hold MCLR high through a 10 kohm pull-up; leaving MCLR floating causes erratic operation. When using ECAN, configure the CAN I/O pins (RC6/RC7) for digital mode by clearing the corresponding TRIS bits and configuring the PPS registers correctly.
合规信息
RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified; select PIC18 K-series for automotive-grade applications.