PIC18LF2580-I/SO - 8-Bit 40MHz 32KB Flash MCU 28-SOIC | Microchip
MPN： PIC18LF2580-I/SO ✓ 啟用中PIC18LF2580-I/SO 概覽
A PIC microcontroller is a self-contained 8-bit RISC computer on a single CMOS die, integrating CPU core, program memory, RAM, peripherals, and I/O on one chip. PIC18F-family parts use a 16-bit instruction word and a 16-bit data path, achieving up to 10 MIPS at 40 MHz while preserving the byte-oriented programming model. They sit higher than the PIC16 and PIC10/12/16 families and below the dsPIC and PIC32 families, occupying the mid-range of Microchip's 8-bit portfolio. The PIC18LF2580 in particular extends the family with industrial-grade CAN connectivity, making it a common drop-in for 12V automotive-bus and factory-floor nodes.
Key features of the PIC18LF2580-I/SO include 25 digital I/O pins across two ports, an integrated CAN 2.0B controller with ECAN support, a 10-bit ADC with up to 8 channels, two analog comparators, two 8-bit and three 16-bit timers, an Enhanced USART, MSSP for SPI/I2C, a 10-bit PWM, and a nanoWatt power management set with idle, sleep, and low-power modes. The integrated CAN module eliminates an external transceiver-less controller and simplifies bus-isolated hardware.
Typical applications include industrial automation controllers, automotive CAN nodes (body, chassis, and diagnostic ECUs), HVAC controllers, sensor hubs with local intelligence, and low-power remote monitoring devices. The wide operating voltage (2.0 V to 5.5 V) and CAN bus support also suit it to battery-backed nodes on industrial 24V buses.
When designing, ensure the CAN TX/RX pins route through a TJA1050 or similar transceiver, and place a 100 nF decoupling capacitor within 5 mm of VDD. The industrial temperature grade and 40 MHz MIPS make this part a strong choice for cost-sensitive CAN-attached nodes where reliability over commercial grade is required.
直接替換替代品，適用於 PIC18LF2580-I/SO — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC18LF2580-I/SO （相同外形與佔位） — 差異在於 Package, ADC, Operating Temperature, I/O Pins, Timers.
PIC18LF2580T-I/SO
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC18LF2580-I/SP
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC18F2580-I/SO
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC18F2480-I/SO
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC18F2580-E/SO
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC18F2510-I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC18LF2580-I/SO 最大額定值與電氣特性
| Product Family | PIC18 LF |
| Core | PIC18F (8-bit RISC, 16-bit instruction word) |
| Program Memory | 32 KB Flash (16K x 16 words) |
| Data SRAM | 1.5 KB |
| Data EEPROM | 256 bytes |
| 最大時脈頻率 | 40 MHz |
| Operating Voltage Range | 2.0 V to 5.5 V |
| 工作溫度範圍 | -40 C to +85 C (Industrial) |
| I/O Pins | 25 |
| 封裝 | 28-SOIC (7.50 mm body width) |
| 安裝類型 | Surface Mount |
| CAN Module | CAN 2.0B active / ECAN |
| ADC | 10-bit, up to 8 channels |
| Timers | 2 x 8-bit, 3 x 16-bit |
| Communication Interfaces | EUSART, MSSP (SPI / I2C), CAN |
| MSL 等級 | 1 (unlimited floor life) |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
PIC18LF2580-I/SO 腳位配置
| 腳位 1 | MCLR — Master Clear (reset) input, active low |
| 腳位 2 | RA0/AN0 — Port A bit 0 / analog input 0 |
| 腳位 3 | RA1/AN1 — Port A bit 1 / analog input 1 |
| 腳位 4 | RA2/AN2/VREF- — Port A bit 2 / analog input 2 / ADC VREF- |
| 腳位 5 | RA3/AN3/VREF+ — Port A bit 3 / analog input 3 / ADC VREF+ |
| 腳位 6 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| 腳位 7 | RA5/AN4/SS — Port A bit 5 / analog input 4 / SPI slave select |
| 腳位 8 | OSC1/CLKI/RA7 — Oscillator input / external clock in |
| 腳位 9 | OSC2/CLKO/RA6 — Oscillator output / clock out |
| 腳位 10 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator out / Timer1 clock in |
| 腳位 11 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer1 oscillator in / CCP2 |
| 腳位 12 | RC2/CCP1 — Port C bit 2 / CCP1 PWM |
| 腳位 13 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| 腳位 14 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| 腳位 15 | RC5/SDO — Port C bit 5 / SPI data out |
| 腳位 16 | RC6/TX/CK — Port C bit 6 / EUSART TX / clock |
| 腳位 17 | RC7/RX/DT — Port C bit 7 / EUSART RX / data |
| 腳位 18 | VSS — Ground |
| 腳位 19 | VDD — Positive supply voltage |
| 腳位 20 | RB0/INT0 — Port B bit 0 / external interrupt 0 |
| 腳位 21 | RB1/INT1 — Port B bit 1 / external interrupt 1 |
| 腳位 22 | RB2/INT2 — Port B bit 2 / external interrupt 2 |
| 腳位 23 | RB3/INT3 — Port B bit 3 / external interrupt 3 |
| 腳位 24 | RB4 — Port B bit 4 |
| 腳位 25 | RB5 — Port B bit 5 |
| 腳位 26 | RB6/PGC — Port B bit 6 / ICSP clock |
| 腳位 27 | RB7/PGD — Port B bit 7 / ICSP data |
| 腳位 28 | VSS — Ground |
典型應用
PIC18LF2580-I/SO 適用於 6 應用s: Industrial CAN Node Controller, Automotive Body and Diagnostic ECU, HVAC Controller Board, Sensor Hub with Local Intelligence, Battery-Backed Remote Monitor, Industrial 24V Bus Interface Module.
Industrial CAN Node Controller
The PIC18LF2580-I/SO is engineered for industrial CAN 2.0B/ECAN nodes because it integrates both an Enhanced CAN controller and the standard PIC18 peripheral set in a 28-SOIC package. With 32 KB Flash and 1.5 KB SRAM it can run a full CANopen or DeviceNet slave stack with room for application-specific logic. The wide 2.0-5.5 V VDD supports both 3.3 V logic and 5 V industrial backplanes, while the -40 C to +85 C industrial temperature range suits cabinet and field installations. Place the IC next to a TJA1050 or MCP2551 transceiver, route CANH/CANL as a 120-ohm terminated differential pair, and add a 100 nF decoupling capacitor within 5 mm of VDD for EMI-robust operation.
推薦
Automotive Body and Diagnostic ECU
The PIC18LF2580-I/SO serves cost-sensitive automotive body and diagnostic ECUs because its integrated CAN 2.0B controller removes the need for an external stand-alone CAN chip. Its 32 KB Flash supports UDS/KWP2000 diagnostic stacks plus basic body-control firmware (lighting, mirror, seat modules). The 10-bit ADC handles sensor inputs for temperature and battery monitoring, while the EUSART supports LIN bus for sub-networks. Although this -I industrial grade spans -40 C to +85 C, automotive applications above 85 C require the PIC18LF2580-E/SO (extended temperature) variant instead. The 28-SOIC is suitable for hand-solder rework and high-volume SMT assembly.
推薦
HVAC Controller Board
The PIC18LF2580-I/SO fits HVAC controller boards because it offers 25 digital I/O for relay triac and fan control, plus a 10-bit ADC for temperature and pressure sensing. The wide 2.0-5.5 V VDD tolerates 24 V rectified supplies dropped via a small LDO, and the 32 KB Flash is ample for PID loop control plus a small display driver. The MSSP SPI/I2C ports can drive an EEPROM and an OLED or character display. NanoWatt power-management modes reduce standby consumption when the system idles. Add ESD protection on keypad inputs and ensure PCB separation between mains-side triac traces and the digital ground pour to pass surge tests.
推薦
Sensor Hub with Local Intelligence
The PIC18LF2580-I/SO is well-matched to industrial sensor hubs that aggregate analog and digital inputs and publish on CAN. Its 10-bit ADC with up to 8 channels handles multiple transducer inputs (temperature, pressure, flow) at reasonable resolution, and the hardware EUSART + MSSP allow daisy-chaining additional digital sensors. The 32 KB Flash and 1.5 KB SRAM enable on-board filtering, calibration, and statistical aggregation before transmitting on CAN, reducing bus traffic. The wide operating voltage allows the part to share a 3.3 V rail with modern digital sensors without a separate regulator. The 28-SOIC package is well-suited to compact IP65 sensor housings.
推薦
Battery-Backed Remote Monitor
The PIC18LF2580-I/SO suits battery-backed remote monitoring because its 2.0 V minimum VDD lets it run directly from two nearly-depleted AA cells. NanoWatt sleep currents extend standby life into the multi-year range, while the integrated CAN or EUSART allows low-duty-cycle wake-and-report cycles. The 32 KB Flash provides ample room for sensor drivers, a small RTOS or scheduler, and a stack-friendly data logger. Add a low-Iq LDO such as MCP1700 for clean rails and a TPL5110 nano-power system timer to handle long deep-sleep intervals. Note: industrial temperature grade is rated -40 C to +85 C; for outdoor arctic/desert conditions upgrade to the E (extended) variant.
推薦
Industrial 24V Bus Interface Module
The PIC18LF2580-I/SO works in 24V industrial-rail interface modules because its wide 2.0-5.5 V VDD supports a small buck regulator that drops the 24 V rail to 5 V or 3.3 V. The integrated CAN controller eliminates the need for an external CAN ASIC, while the EUSART and MSSP add RS-485 or RS-232 support for legacy fieldbus. The 32 KB Flash fits standard field-device firmware plus a custom protocol stack. Use a TPS3823 or equivalent voltage supervisor to drive MCLR for clean resets on noisy 24 V rails, and add TVS diodes on the bus pins for surge protection.
推薦
推薦產品摘要
工程參考資料，適用於 PIC18LF2580-I/SO — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC18LF2580T-I/SO | PIC18F2580-I/SO | PIC18F2480-I/SO | PIC18F2580-E/SO | PIC18F2510-I/SO |
|---|---|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC (tape and reel) | 28-SOIC | 28-SOIC | 28-SOIC | 28-SOIC |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 32 KB Flash | 32 KB Flash | 32 KB Flash | 16 KB Flash | 32 KB Flash | 32 KB Flash |
| Operating Voltage Range | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V |
| Maximum Clock Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| CAN Module | CAN 2.0B / ECAN | CAN 2.0B / ECAN | CAN 2.0B / ECAN | CAN 2.0B / ECAN | CAN 2.0B / ECAN | None (no CAN module) |
| Data SRAM | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB |
| Operating Temperature Range | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C (Extended) | -40 C to +85 C |
| Price (qty 1, USD) | 5.95 | 5.95 | 5.45 | 5.20 | 6.50 | 5.05 |
主要差異化特點
- Lowest VDD range in the PIC18F2580 family (對比PIC18F2580-I/SO)
- Integrated ECAN controller eliminates external CAN ASIC (對比PIC18F2510-I/SO)
- 32 KB Flash at lower VDD than PIC18F2480 (對比PIC18F2480-I/SO)
設計說明
Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of the VDD pin, plus a bulk 10 uF tantalum or ceramic capacitor on the same rail. The PIC18LF2580-I/SO draws brief high-current pulses during Flash writes that can cause VDD droop if decoupling is inadequate. For battery-powered designs the 2.0 V minimum VDD requires low-dropout regulation from cells, otherwise use a low-Iq LDO such as MCP1700.
Route CANH and CANL as a 120-ohm-impedance matched differential pair with no stubs. Place a 60-ohm split termination (two 120-ohm resistors with a 10 nF to ground at the centre tap) at each end of the bus for EMC compliance. Keep the MCP2551 / TJA1050 transceiver within 25 mm of the PIC18LF2580-I/SO CANRX and CANTX pins and provide a separate analog ground island if the MCU also handles analog sensor inputs.
Do not assume the LF variant and the standard variant are drop-in compatible at 3.3 V. The PIC18F2580-I/SO and PIC18F2580-E/SO require a minimum of 4.2 V and will not operate from a 3.3 V rail. Also, the /SP package (28-PDIP) has the same pinout but a different footprint, so PCB designs for /SO cannot directly accept /SP without a footprint change. Verify the exact MPN on the PCB silkscreen before volume assembly.
When using the internal oscillator at 40 MHz for CAN, ensure the CAN module is configured for the correct baud-rate prescaler and SJW. The PIC18LF2580-I/SO CAN bit-quantum error must be less than 1 percent for reliable CAN communication. For long bus stubs use a lower baud (125 kbps instead of 1 Mbps) and verify with an oscilloscope that the CANH/CANL differential signal stays within the ISO 11898 recessive and dominant windows.
合規資訊
RoHS compliant and lead-free per Microchip product page. Not AEC-Q100 qualified; the -E temperature grade does not constitute automotive qualification. Halogen-free status not explicitly published.
