PIC18F2585-I/SP - 8-bit 40MHz MCU 48KB Flash ECAN DIP-28
MPN: PIC18F2585-I/SP ✓ Hoạt độngPIC18F2585-I/SP Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, and peripheral interfaces around an 8-bit data bus. Within the semiconductor hierarchy, MCUs sit inside the broader Integrated Circuits category; PIC18F parts belong to Microchip's PIC18 advanced-performance 8-bit family, which is widely used in CAN-bus, industrial-control, and embedded-sensing designs where deterministic interrupt response and low power are required.
Key features include 48KB flash program memory with self-programmability, 3328 bytes of SRAM, 256 bytes of EEPROM, a 10-bit ADC with up to 11 channels, two enhanced USART modules, two MSSP (SPI/I2C) modules, the ECAN module compliant with CAN 2.0B active, four timer modules, two PWM/CCP modules, and nanoWatt power-saving modes. Operating voltage spans 2.0V to 5.5V with industrial -40C to +85C temperature range.
The device uses Microchip's enhanced Harvard architecture with a 16-bit instruction word and 8-bit data path, providing up to 10 MIPS throughput while retaining the PIC instruction-set compatibility for code reuse. The ECAN peripheral supports standard and extended identifiers plus advanced filtering, reducing host CPU overhead in networked sensor and motor-control designs.
Typical applications include automotive body and comfort ECAN nodes, industrial CAN-bus distributed I/O, building automation gateways, sensor and instrumentation nodes with on-board ADC, and low-power remote controls. The wide 2.0V to 5.5V input range simplifies battery-backed designs and 5V industrial buses.
When designing with this MCU, ensure the ICSP clock and data lines are properly isolated from application circuitry; also budget for an external CAN transceiver since the ECAN peripheral implements only the protocol layer.
This page synthesizes distributor pricing, drop-in same-package alternatives from the PIC18F2480/PIC18F2580 family, and practical design notes not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC18F2585-I/SP — 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 PIC18F2585-I/SP (cùng hình factor và footprint) — khác nhau ở MSL Level, Package, RoHS Status, Timers, Core Architecture.
PIC18F2580-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2480-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F248-I/SP
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F2680-I/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F2585-H/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2585-E/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2585-I/SP Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit RISC (Harvard) |
| Family | PIC18F2xxx |
| Maximum CPU Frequency | 40 MHz |
| Program Memory (Flash) | 48 KB (24K x 16) |
| Data SRAM | 3328 bytes |
| Data EEPROM | 256 bytes |
| Operating Voltage Range | 2.0 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Hộp | 28-pin SPDIP (0.300 inch, 7.62 mm) |
| Kiểu lắp đặt | Through-Hole (DIP) |
| ADC | 10-bit, up to 11 channels |
| CAN Interface | ECAN (CAN 2.0B active) |
| UART | 2x Enhanced USART |
| SPI / I2C | 2x MSSP (SPI / I2C) |
| Timers | 4 (Timer0/1/2/3) |
| PWM / CCP | 2x CCP/ECCP |
| Instruction Set Width | 16-bit instruction / 8-bit data |
| Throughput | 10 MIPS |
| Power-Saving Modes | nanoWatt Technology |
| ICSP | In-Circuit Serial Programming |
| Trạng thái RoHS | Compliant (lead-free finish per Microchip product page) |
| Cấp MSL | Not applicable (through-hole package) |
Cấu hình chân PIC18F2585-I/SP
| Chân 1 | MCLR — Master Clear (reset) input, active low |
| Chân 2 | RA0 — PORTA bit 0 / analog AN0 |
| Chân 3 | RA1 — PORTA bit 1 / analog AN1 |
| Chân 4 | RA2 — PORTA bit 2 / analog AN2 |
| Chân 5 | RA3 — PORTA bit 3 / analog AN3 / VREF+ |
| Chân 6 | RA4 — PORTA bit 4 / analog AN4 |
| Chân 7 | RA5 — PORTA bit 5 / analog AN5 / VREF- |
| Chân 8 | VSS — Ground reference |
| Chân 9 | OSC1 — Oscillator input / external clock input |
| Chân 10 | OSC2 — Oscillator output / clock output |
| Chân 11 | RC0 — PORTC bit 0 |
| Chân 12 | RC1 — PORTC bit 1 |
| Chân 13 | RC2 — PORTC bit 2 / CCP1 |
| Chân 14 | RC3 — PORTC bit 3 / SCL |
| Chân 15 | RC4 — PORTC bit 4 / SDA |
| Chân 16 | RC5 — PORTC bit 5 |
| Chân 17 | RC6 — PORTC bit 6 / TX1 |
| Chân 18 | RC7 — PORTC bit 7 / RX1 |
| Chân 19 | VSS — Ground reference |
| Chân 20 | VDD — Positive supply voltage |
| Chân 21 | RB0 — PORTB bit 0 / INT0 |
| Chân 22 | RB1 — PORTB bit 1 / INT1 |
| Chân 23 | RB2 — PORTB bit 2 |
| Chân 24 | RB3 — PORTB bit 3 / CANTX |
| Chân 25 | RB4 — PORTB bit 4 / CANRX |
| Chân 26 | RB5 — PORTB bit 5 / PGM |
| Chân 27 | RB6 — PORTB bit 6 / PGC |
| Chân 28 | RB7 — PORTB bit 7 / PGD |
Ứng dụng tiêu biểu
PIC18F2585-I/SP phù hợp cho 6 Áp dụngs: Automotive Body & Comfort ECAN Nodes, Industrial CAN-Bus Distributed I/O, Building Automation Gateways, Sensor & Instrumentation Nodes, Embedded Motor Control, Low-Power Remote Controls & HMI.
Automotive Body & Comfort ECAN Nodes
The PIC18F2585-I/SP is purpose-built for automotive body and comfort CAN-bus ECUs thanks to its integrated ECAN peripheral supporting CAN 2.0B active with both 11-bit and 29-bit identifiers, 48 KB flash for gateway and diagnostic stacks, and 10 MIPS throughput for fast bus arbitration. The 10-bit ADC reads sensor inputs (door switches, light sensors) and the 3328 bytes of RAM holds CAN message buffers and protocol state. Designers pair it with an external CAN transceiver like MCP2551 or TJA1050; the wide 2.0-5.5 V supply simplifies integration with 12 V-derived automotive rails through local regulation.
Được đề xuất
Industrial CAN-Bus Distributed I/O
On factory floors the PIC18F2585-I/SP serves as the local intelligence on each CANopen or DeviceNet node, with its ECAN module handling bus protocol while the 10-bit ADC samples analog sensor signals and the 2x USART links to RS-485 or RS-232 field instruments. The 4 timers handle PWM outputs for valve and motor control, while nanoWatt power-saving modes reduce idle consumption. Industrial -40 C to +85 C rating and 2.0-5.5 V supply make the 2585 tolerant of the noisy 24 V industrial bus through a small DC-DC regulator.
Được đề xuất
Building Automation Gateways
Building automation gateways use the PIC18F2585-I/SP to bridge between ECAN-based HVAC and access-control fieldbuses and a higher-level BACnet or Modbus host processor. The 48 KB flash stores bridging tables and protocol stacks, while the 2x MSSP (SPI/I2C) ports connect to local sensor hubs and the 2x USART talks to RS-485 trunks. ECAN's hardware filtering reduces host CPU load, allowing the MCU to maintain timing budgets even at 1 Mbit/s bus speeds.
Được đề xuất
Sensor & Instrumentation Nodes
Battery-backed sensor and instrumentation nodes pair the PIC18F2585-I/SP with a 10-bit ADC for analog measurement and the ECAN module for networked data logging. The nanoWatt sleep modes drop quiescent current into the microamp range, enabling multi-year battery life on remote nodes. With 3328 bytes of SRAM the MCU can buffer several seconds of sensor data before transmitting, and the 40 MHz core handles simple on-node DSP like moving-average filtering.
Được đề xuất
Embedded Motor Control
Small brushed DC and stepper motor control designs use the PIC18F2585-I/SP as the central controller, with its 2x CCP/ECCP modules generating PWM up to 40 MHz core clock and its 4 timers handling quadrature encoder inputs. The ECAN module provides networked feedback to a master controller. 48 KB of flash fits space-vector or trapezoidal commutation algorithms, while 2.0-5.5 V supply permits direct operation from a USB or Li-ion source.
Được đề xuất
Low-Power Remote Controls & HMI
Battery-powered remote controls and small HMIs use the PIC18F2585-I/SP for its 256-byte EEPROM storing user preferences, 2x USART for diagnostics, and nanoWatt sleep modes extending battery life. The 2x MSSP ports drive SPI displays and I2C sensors, while the 10-bit ADC reads battery voltage and user potentiometers. The wide 2.0-5.5 V supply lets the same part run from 2 AA cells or USB power.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F2585-I/SP — 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 | PIC18F2580-I/SP | PIC18F2680-I/SP | PIC18F2480-I/SP |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SPDIP (DIP-28) | 28-pin SPDIP (same) | 28-pin SPDIP (same) | 28-pin SPDIP (same) |
| Flash Memory | 48 KB | 32 KB | 96 KB | 16 KB |
| RAM | 3328 bytes | 1536 bytes | 3328 bytes | 1536 bytes |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| CAN Module | ECAN (CAN 2.0B active) | ECAN | ECAN | CAN (no ECAN upgrade) |
| CPU Frequency | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS |
| 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 |
| Temperature Range | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Bảo phân biệt quan trọng
- Doubles flash and RAM of the legacy PIC18F2580 in the same footprint (vsPIC18F2580-I/SP)
- ECAN upgrade vs the older CAN module (vsPIC18F2480-I/SP)
- Lower memory footprint than PIC18F2680 when only 48 KB is needed (vsPIC18F2680-I/SP)
Ghi chú thiết kế
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 20) and a bulk capacitor (>=10 uF) on the same supply trace. The MCLR pin (pin 1) requires a pull-up to VDD (typically 10 kohm) and may benefit from a 100 nF cap to ground for noise immunity; do not leave MCLR floating.
When using the internal ECAN module, the bus-side voltage must be supplied through an external CAN transceiver (such as MCP2551 or TJA1050); the ECAN peripheral only implements the protocol layer, not the physical differential driver. Provide local regulation if the bus is powered from 12 V or 24 V.
Do not confuse the PIC18F2585 with the PIC18F2485 - the 2485 has no ECAN module and only 96 KB of flash with limited CAN support. Verify the ECAN pin assignments (RB3/CANTX, RB4/CANRX) before routing; these are fixed hardware mappings on this device and cannot be remapped to other PORT pins without PPS (which the 2585 does not support).
Thông tin tuân thủ
RoHS-compliant lead-free finish per Microchip product page. Not AEC-Q100 qualified (use automotive-grade -Q1 variants for safety-critical designs). REACH status compliant per Microchip compliance statement.
