PIC18LF4580-I/PT - 8-bit 40MHz MCU, 32KB Flash, ECAN | Microchip
MPN: PIC18LF4580-I/PT ✓ Hoạt độngPIC18LF4580-I/PT Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, on-chip program memory, RAM, peripherals and interrupt logic, designed to sense, decide and act in embedded systems. Within the broader semiconductor taxonomy, an MCU sits under microcontrollers -> embedded processors -> digital ICs -> integrated circuits, while PIC18F-family parts target cost-sensitive deterministic control where 8-bit simplicity and a mature toolchain outweigh the raw throughput of 16-/32-bit Cortex-M parts.
Key features include an integrated ECAN (Enhanced Controller Area Network) module supporting CAN 2.0B active, a 10-bit Analog-to-Digital Converter with 11 input channels, two analog comparators, two Capture/Compare/PWM (ECCP) modules, two UART/USART ports, one SPI bus and one I2C/Master-Sync-Serial-Port bus. The device exposes 36 programmable digital I/O lines, supports In-Circuit Serial Programming (ICSP) and In-Circuit Debug (ICD), and includes nanoWatt power-management modes such as idle, sleep and a real-time clock with on-chip low-power Timer1 oscillator.
Architecturally, the PIC18LF4580-I/PT uses a 16-bit instruction word with 8-bit data, eight-level hardware stack and 32 interrupt sources, giving deterministic response times suitable for real-time control. The ECAN controller handles bus arbitration, acceptance filtering (16 masks / 16 filters) and message buffering in hardware, offloading what would otherwise be CPU-intensive bit-banging from the application core.
Typical applications include automotive body and chassis networks (CAN nodes), industrial CANopen and DeviceNet slave devices, building-automation controllers, sensor-hub designs and low-power battery-powered instruments. The wide 2.0-5.5 V operating range makes it well-suited to mixed 3.3 V / 5 V rails.
When designing with this part, place a 100 nF decoupling capacitor on every VDD/VSS pair and a bulk 10 uF on the main rail, keep the 40 MHz crystal traces short with a guarded ground plane, and use the on-chip ECAN rather than an external controller wherever PCB area or BOM cost is critical.
This page synthesizes distributor pricing, drop-in same-package alternatives and practical design notes not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF4580-I/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC18LF4580-I/PT (cùng hình factor và footprint) — khác nhau ở Package, ADC, Timers, Operating Temperature, RAM.
PIC18F4580-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF4580-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F4580-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F458-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F2480-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F4480-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF4580-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18, 8-bit Harvard |
| Program Memory (Flash) | 32 KB (16K x 16) |
| SRAM | 1536 bytes |
| Data EEPROM | 256 bytes |
| Max CPU Clock | 40 MHz |
| Instruction Throughput | 10 MIPS |
| Operating Voltage | 2.0 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit, 11 channels |
| Comparators | 2 |
| ECCP/PWM Modules | 2 |
| Timers | 6 |
| UART/USART | 2 |
| SPI | 1 |
| I2C/MSSP | 1 |
| CAN | ECAN 2.0B active |
| Hộp | 44-TQFP (PT), 10x10 mm |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18LF4580-I/PT
| Chân 1 | RG0/CANTX — I/O port RG0 / ECAN transmit output |
| Chân 2 | RG1/CANRX — I/O port RG1 / ECAN receive input |
| Chân 3 | RE0/RD — I/O port RE0 / parallel-SSP read strobe |
| Chân 4 | RE1/WR — I/O port RE1 / parallel-SSP write strobe |
| Chân 5 | RE2/CS — I/O port RE2 / parallel-SSP chip select |
| Chân 6 | VDD — Positive supply (digital) |
| Chân 7 | AVDD — Positive supply (analog, ADC reference) |
| Chân 8 | AVSS — Analog ground reference |
| Chân 9 | OSC1/RA7 — Crystal oscillator input / I/O RA7 |
| Chân 10 | OSC2/RA6 — Crystal oscillator output / I/O RA6 |
| Chân 11 | RC0/T1OSO/T1CKI — I/O RC0 / Timer1 oscillator / clock input |
| Chân 12 | RC1/T1OSI/CCP2 — I/O RC1 / Timer1 oscillator / ECCP2 |
| Chân 13 | RC2/CCP1 — I/O RC2 / ECCP1 output |
| Chân 14 | RC3/SCK/SCL — I/O RC3 / SPI clock / I2C clock |
| Chân 15 | RC4/SDI/SDA — I/O RC4 / SPI data in / I2C data |
| Chân 16 | RC5/SDO — I/O RC5 / SPI data out |
| Chân 17 | RC6/TX1/CK1 — I/O RC6 / UART1 TX / clock |
| Chân 18 | RC7/RX1/DT1 — I/O RC7 / UART1 RX / data |
| Chân 19 | VSS — Ground (digital) |
| Chân 20 | VDD — Positive supply (digital) |
| Chân 21 | RB0/INT0 — I/O RB0 / external interrupt 0 |
| Chân 22 | RB1/INT1 — I/O RB1 / external interrupt 1 |
| Chân 23 | RB2/INT2 — I/O RB2 / external interrupt 2 |
| Chân 24 | RB3/INT3 — I/O RB3 / external interrupt 3 |
| Chân 25 | RB4/KBI0 — I/O RB4 / interrupt-on-change |
| Chân 26 | RB5/KBI1 — I/O RB5 / interrupt-on-change |
| Chân 27 | RB6/KBI2/PGC — I/O RB6 / ICSP clock / debug |
| Chân 28 | RB7/KBI3/PGD — I/O RB7 / ICSP data / debug |
| Chân 29 | RD0/PSP0 — I/O RD0 / parallel-SSP data 0 |
| Chân 30 | RD1/PSP1 — I/O RD1 / parallel-SSP data 1 |
| Chân 31 | RD2/PSP2 — I/O RD2 / parallel-SSP data 2 |
| Chân 32 | RD3/PSP3 — I/O RD3 / parallel-SSP data 3 |
| Chân 33 | RD4/PSP4 — I/O RD4 / parallel-SSP data 4 |
| Chân 34 | RD5/PSP5 — I/O RD5 / parallel-SSP data 5 |
| Chân 35 | RD6/PSP6 — I/O RD6 / parallel-SSP data 6 |
| Chân 36 | RD7/PSP7 — I/O RD7 / parallel-SSP data 7 |
| Chân 37 | RA0/AN0 — I/O RA0 / analog input 0 |
| Chân 38 | RA1/AN1 — I/O RA1 / analog input 1 |
| Chân 39 | RA2/AN2/VREF- — I/O RA2 / analog input 2 / ADC Vref- |
| Chân 40 | RA3/AN3/VREF+ — I/O RA3 / analog input 3 / ADC Vref+ |
| Chân 41 | RA4/T0CKI — I/O RA4 / Timer0 clock input |
| Chân 42 | RA5/AN4 — I/O RA5 / analog input 4 |
| Chân 43 | VSS — Ground (digital) |
| Chân 44 | VDD — Positive supply (digital) |
Ứng dụng tiêu biểu
PIC18LF4580-I/PT phù hợp cho 6 Áp dụngs: Industrial CAN Bus Sensor Node, Automotive Body and Chassis Network, Building Automation Controller, Low-Power Battery-Powered Instrument, USB-to-CAN Adapter Bridge, Industrial Sensor Hub with RS-485 Backbone.
Industrial CAN Bus Sensor Node
The PIC18LF4580-I/PT is a strong fit for industrial CAN bus sensor nodes because its integrated ECAN 2.0B module provides hardware acceptance filtering (16 masks / 16 filters) and message buffering (8 buffers) that offload CAN-protocol handling from the 40 MHz / 10 MIPS PIC18 core. The 11-channel 10-bit ADC simultaneously reads thermistor, pressure and flow-sensor analog signals, while two UARTs route RS-485 or RS-232 debug traffic. Pin savings versus a discrete CAN controller plus external MCU shrink the BOM, and the 2.0-5.5 V rail range supports both 24 V industrial backplanes (with a buck regulator) and 3.3 V battery-backed cabinets.
Được đề xuất
Automotive Body and Chassis Network
The PIC18LF4580-I/PT serves as a body-control slave in automotive CAN networks where the integrated ECAN module, 32 KB Flash (large enough for CANopen or J1939 stacks) and 36 I/O lines simplify door-module, lighting-controller or HVAC-ECU designs. The two ECCP/PWM modules drive LED drivers or small DC-motor H-bridges directly, while the analog comparators provide over-current/over-voltage protection on actuator outputs. The -40C to +85C industrial window covers cabin electronics, and the LF process tolerates 12 V automotive cranking transients when paired with a 5 V regulator. The 44-TQFP footprint is shared with PIC18F4580-I/PT, easing second sourcing.
Được đề xuất
Building Automation Controller
In building-automation networks (BACnet, Modbus, CANopen), the PIC18LF4580-I/PT acts as a 44-TQFP zone controller that aggregates HVAC sensors (via the 10-bit ADC), drives triac-fired dampers (via ECCP/PWM) and exposes the ECAN bus for backbone traffic to a central BMS. Its 1536-byte SRAM holds BACnet MS/TP frame buffers, while 32 KB Flash accommodates the full protocol stack with room for application firmware. The wide 2.0-5.5 V input allows operation from 24 VAC rectified-rail supplies or 5 V USB power during commissioning. Industrial -40C to +85C operation tolerates rooftop plant-room environments.
Được đề xuất
Low-Power Battery-Powered Instrument
Battery-powered instruments benefit from the PIC18LF4580-I/PT's nanoWatt Technology features: idle, sleep and a real-time-clock mode where Timer1 runs from a low-power 32 kHz crystal, keeping the ECAN module inactive until a wake-up CAN frame arrives. The LF process allows full 40 MHz operation down to 2.0 V, so two alkaline cells or a single Li-coin cell can run the entire system. The 10-bit ADC can be duty-cycled to reduce average current to single-digit microamps while still monitoring a sensor at 1 Hz. The 256-byte EEPROM stores calibration constants without external non-volatile memory.
Được đề xuất
USB-to-CAN Adapter Bridge
The PIC18LF4480-I/PT (a pin-compatible variant with on-chip USB 2.0 full-speed) and the PIC18LF4580-I/PT form a natural pairing for USB-to-CAN adapter bridges: the 44-TQFP die exposes CAN, USB, SPI and I2C simultaneously, allowing a single MCU to bridge a PC USB host to a CAN bus without an external protocol controller. The 32 KB Flash holds both the USB CDC class driver and a CANopen or DeviceNet slave stack, while 1536-byte SRAM buffers peak traffic. The 2.0-5.5 V input tolerates bus-powered USB 5 V or self-powered 3.3 V operation without level shifters.
Được đề xuất
Industrial Sensor Hub with RS-485 Backbone
The PIC18LF4580-I/PT serves as a sensor-hub MCU in industrial networks where two UARTs (one for RS-485 Modbus-RTU backhaul, one for local debug or a second RS-485 link) plus ECAN provide redundant fieldbus connectivity. Its 36 I/O lines fan out to multiple digital sensors, while the 11-channel ADC aggregates analog 4-20 mA or 0-10 V field signals. The 32 KB Flash holds a Modbus-RTU slave plus a small CANopen gateway, and the 44-TQFP footprint keeps the PCB small enough to fit in a DIN-rail enclosure. The LF voltage range covers 3.3 V sensor rails and 5 V PLC backplanes alike.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF4580-I/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC18F4580-I/PT | PIC18LF4580-I/P | PIC18F4580-E/PT | PIC18F458-I/PT | PIC18F2480-I/PT | PIC18F4480-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (PT) 10x10 mm | 44-TQFP (PT) 10x10 mm | 44-TQFP (PT) 10x10 mm | 44-TQFP (PT) 10x10 mm | 44-TQFP (PT) 10x10 mm | 44-TQFP (PT) 10x10 mm | 44-TQFP (PT) 10x10 mm |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 16 KB | 16 KB | 32 KB |
| Operating Voltage | 2.0 V to 5.5 V | 4.2 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 | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Max CPU Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| CAN Module | ECAN 2.0B active | ECAN 2.0B active | ECAN 2.0B active | ECAN 2.0B active | ECAN 2.0B active | ECAN 2.0B active | ECAN 2.0B active |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| USB Module | No | No | No | No | No | No | USB 2.0 full-speed |
Bảo phân biệt quan trọng
- Lowest operating voltage window in the PIC18F4580 family (vsPIC18F4580-I/PT)
- Larger Flash than PIC18F458 generation (vsPIC18F458-I/PT)
- USB-free variant within the same die family (vsPIC18F4480-I/PT)
- Industrial temperature window meets most cabinet-grade designs (vsPIC18F4580-E/PT)
Ghi chú thiết kế
Place one 100 nF (0.1 uF) decoupling capacitor on each VDD/VSS pair (pins 6, 20, 44) and one 10 uF bulk capacitor on the main VDD rail close to the device. A dedicated 100 nF plus 10 uF combination on AVDD (pin 7) with AVSS (pin 8) tied to a clean analog ground island is required for the 10-bit ADC to achieve rated linearity; otherwise switching noise on the analog rail couples into the ADC result. The PIC18LF4580-I/PT's wide 2.0-5.5 V input means a single-cell Li-coin or 2-cell alkaline stack can power the part directly, but a low-dropout regulator is still recommended for noise-sensitive CAN lines.
Keep the 40 MHz crystal traces (OSC1 pin 9 and OSC2 pin 10) shorter than 5 mm and route them over a continuous ground pour to avoid radiated EMI and crystal overdrive. Place the crystal load capacitors (typically 22-33 pF for 40 MHz fundamental-mode) within 3 mm of the OSC1/OSC2 pins. For ECAN signalling, route CANTX (pin 1) and CANRX (pin 2) as a matched differential pair to the MCP2551/MCP2561 transceiver, keep the bus stubs under 25 mm, and terminate both ends with 120 ohm resistors to prevent reflections at 1 Mbit/s. The PGEC/PGED pair (pins 27, 28) for ICSP must be accessible without removing the device from the PCB.
Estimated: at 40 MHz with VDD = 5.0 V, typical active current is approximately 16 mA per the Microchip datasheet DC characteristics, so power dissipation is roughly 80 mW - well within the 44-TQFP 31 C/W theta_JA thermal limit. Do not, however, drive all 36 I/O lines at 20 mA simultaneously: the absolute maximum per pin is 25 mA sink, and the aggregate I/O current is clamped at 200 mA to avoid CMOS latch-up. A common pitfall is forgetting to clear the CAN module's REQOP bits before entering Sleep - the ECAN state machine must be set to Configuration mode (REQOP2:0 = 100) before the CPU switches the oscillator to a low-power mode, otherwise wake-up will not occur on CAN activity.
The CAN bus differential pair should be a 100-ohm impedance controlled trace on the PCB (not 120 ohm as some legacy designs assume) because the MCP2551/MCP2561 transceivers drive into a 120-ohm bus but expect 100-ohm cable characteristic impedance at the connector. Place a common-mode choke on the bus lines near the connector to suppress automotive transients up to 30 V/m EMI. For the UART lines (RC6/RC7 for UART1), enable the slew-rate control bit to slow edge rates when driving long external cables beyond 0.5 m, especially in electrically noisy industrial enclosures.
Thông tin tuân thủ
RoHS compliant and lead-free per Microchip product page and DigiKey listing PN 857520. The PT (TQFP) package uses a NiPdAu lead-free finish suitable for reflow up to 260 C peak. Industrial temperature grade (-40C to +85C); AEC-Q100 qualified variant not available in this LF process - for automotive AEC-Q100 designs use PIC18F4580-I/PT or PIC18F4580-E/PT.