PIC18LF6585T-I/PT - 8-Bit 40MHz 48KB Flash MCU 64-TQFP | Microchip
MPN: PIC18LF6585T-I/PT ✓ Hoạt độngPIC18LF6585T-I/PT Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and a configurable set of peripherals (timers, ADC, communication controllers, I/O). The PIC18 family is Microchip's 8-bit high-performance architecture, sitting between the baseline PIC10/12/16 families and the 16-bit dsPIC/PIC24 families in the company's embedded-control hierarchy. LF variants run at lower core voltages (typically 2.0-3.6 V) and target low-power and battery-backed designs.
Key features include 40 MHz maximum clock, 16-bit wide instruction word, 1024 bytes of EEPROM, ECAN 2.0B controller, up to 12-channel 10-bit ADC, two USART modules, MSSP (SPI/I2C), two CCP and one ECCP modules, four timers, and an industrial-grade operating temperature of -40C to +85C. The wide memory map (24K x 16 Flash) supports moderately complex state machines and CAN-based protocol stacks.
The PIC18LF6585T-I/PT's nanoWatt Technology, idle/sleep modes with multiple wake-up sources, and on-board ECAN controller make it well-suited for power-conscious, networked embedded nodes. The architecture is a Harvard-design modified RISC core with 16-bit instructions and 8-bit data path, providing deterministic interrupt latency for real-time control loops.
Typical applications include industrial automation and CAN-bus nodes, automotive body-electronics ECUs, HVAC and building-control controllers, motor control front-ends, and sensor/data-acquisition subsystems. The combination of 48 KB Flash and 3.25 KB RAM is sufficient for CANopen, DeviceNet, and J1939 protocol stacks.
When designing with this device, budget oscillator start-up time (typically 1024 Tosc) before relying on timing-critical peripherals, and use Microchip's MPLAB X IDE with the free XC8 compiler for code generation. Decoupling: place a 100 nF capacitor on each VDD pin and a bulk 10 uF on the analog AVDD rail.
This page synthesizes XAIPART distributor pricing, same-family drop-in alternatives, and practical design notes drawn from Microchip's PIC18F6680/8585/6685 family datasheet, going beyond raw repackaging of the datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF6585T-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 PIC18LF6585T-I/PT (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Program Memory (Flash), Timers, ADC.
PIC18LF6585-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF6685-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF6680-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F6585-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF6525T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF6520T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F8680-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF6585T-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18F 8-bit RISC |
| Maximum CPU Clock | 40 MHz |
| Program Memory (Flash) | 48 KB (24K x 16) |
| Data SRAM | 3.25 KB (3328 bytes) |
| Data EEPROM | 1 KB (1024 bytes) |
| Hộp | 64-TQFP (10x10 mm), PT suffix, tape-and-reel |
| I/O Pins | 52 |
| ADC | 10-bit, up to 12 channels |
| CAN Module | ECAN 2.0B |
| UART/USART | 2 |
| MSSP (SPI/I2C) | 1 |
| CCP / ECCP | 2 CCP + 1 ECCP |
| Timers | 4 (Timer0/1/2/3) |
| Operating Voltage (LF) | 2.0 V to 3.6 V (LF variants) |
| Nhiệt độ hoạt động | -40C to +85C (industrial, I grade) |
| Kiểu lắp đặt | Surface Mount (TQFP) |
| Cấp MSL | 3 (per JEDEC J-STD-020) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18LF6585T-I/PT
| Chân 1 | RG0 — PORTG bit 0 / digital I/O |
| Chân 2 | RG1 — PORTG bit 1 / digital I/O |
| Chân 3 | RG2 — PORTG bit 2 / digital I/O |
| Chân 4 | RG3 — PORTG bit 3 / digital I/O |
| Chân 5 | RG4 — PORTG bit 4 / digital I/O |
| Chân 6 | MCLR — Master Clear (reset, active low) |
| Chân 7 | OSC1 — Crystal/oscillator input |
| Chân 8 | OSC2 — Crystal/oscillator output |
| Chân 9 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Chân 10 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Chân 11 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Chân 12 | RA3/AN3 — PORTA bit 3 / analog input 3 |
| Chân 13 | RA4/T0CKI — PORTA bit 4 / Timer0 clock |
| Chân 14 | RA5/AN4 — PORTA bit 5 / analog input 4 |
| Chân 15 | RE0/RD — PORTE bit 0 / CAN RD |
| Chân 16 | RE1/WR — PORTE bit 1 / CAN WR |
| Chân 17 | RE2/CS — PORTE bit 2 / CAN CS |
| Chân 18 | VDD — Logic supply (2.0-3.6 V LF) |
| Chân 19 | VSS — Logic ground |
| Chân 20 | AVDD — Analog supply |
| Chân 21 | AVSS — Analog ground |
| Chân 22 | RA6/OSC2 — PORTA bit 6 / alt oscillator |
| Chân 23 | RA7/OSC1 — PORTA bit 7 / alt oscillator |
| Chân 24 | RC0/T1OSO — PORTC bit 0 / Timer1 oscillator out |
| Chân 25 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 osc in / CCP2 |
| Chân 26 | RC2/CCP1 — PORTC bit 2 / CCP1 |
| Chân 27 | RC3/SCK/SCL — PORTC bit 3 / SPI SCK / I2C SCL |
| Chân 28 | RC4/SDI/SDA — PORTC bit 4 / SPI SDI / I2C SDA |
| Chân 29 | RC5/SDO — PORTC bit 5 / SPI SDO |
| Chân 30 | RC6/TX1/CK1 — PORTC bit 6 / USART1 TX |
| Chân 31 | RC7/RX1/DT1 — PORTC bit 7 / USART1 RX |
| Chân 32 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| Chân 33 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Chân 34 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| Chân 35 | RB3/INT3/ECCP2 — PORTB bit 3 / INT3 / ECCP2 |
| Chân 36 | RB4/INT4 — PORTB bit 4 / external interrupt 4 |
| Chân 37 | RB5/INT5 — PORTB bit 5 / external interrupt 5 |
| Chân 38 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Chân 39 | RB7/PGD — PORTB bit 7 / ICSP data |
| Chân 40 | VDD — Logic supply (2.0-3.6 V LF) |
| Chân 41 | VSS — Logic ground |
| Chân 42 | RD0/ECCP1 — PORTD bit 0 / ECCP1 |
| Chân 43 | RD1 — PORTD bit 1 |
| Chân 44 | RD2 — PORTD bit 2 |
| Chân 45 | RD3 — PORTD bit 3 |
| Chân 46 | RD4/ECANRX — PORTD bit 4 / ECAN receive |
| Chân 47 | RD5/ECANTX — PORTD bit 5 / ECAN transmit |
| Chân 48 | RD6 — PORTD bit 6 |
| Chân 49 | RD7 — PORTD bit 7 |
| Chân 50 | RE3 — PORTE bit 3 |
| Chân 51 | RE4 — PORTE bit 4 |
| Chân 52 | RE5 — PORTE bit 5 |
| Chân 53 | RE6 — PORTE bit 6 |
| Chân 54 | RE7 — PORTE bit 7 |
| Chân 55 | RF0 — PORTF bit 0 |
| Chân 56 | RF1 — PORTF bit 1 |
| Chân 57 | RF2 — PORTF bit 2 |
| Chân 58 | RF3 — PORTF bit 3 |
| Chân 59 | RF4 — PORTF bit 4 |
| Chân 60 | RF5 — PORTF bit 5 |
| Chân 61 | RF6 — PORTF bit 6 |
| Chân 62 | RF7 — PORTF bit 7 |
| Chân 63 | VDD — Logic supply (2.0-3.6 V LF) |
| Chân 64 | VSS — Logic ground |
Ứng dụng tiêu biểu
PIC18LF6585T-I/PT phù hợp cho 6 Áp dụngs: Industrial CAN-Bus Nodes, Automotive Body Electronics ECUs, HVAC and Building Control, Motor Control Front-End (Sensorless BLDC / PFC), Sensor Data-Acquisition and DAQ Modules, Smart Energy / Sub-Metering.
Industrial CAN-Bus Nodes
The PIC18LF6585T-I/PT's integrated ECAN 2.0B controller and 48 KB Flash make it a strong fit for industrial CAN-bus nodes running CANopen or DeviceNet stacks. With 52 I/O pins it directly interfaces to digital sensors, contactors, and 24 V industrial field wiring via optocouplers. The 40 MHz core handles a full CANopen CiA 401/402/404 stack with sub-millisecond cycle times, while the LF 2.0-3.6 V core permits battery-backed operation during brown-outs. Its -40C to +85C industrial temperature range covers factory-floor deployment.
Được đề xuất
Automotive Body Electronics ECUs
The PIC18LF6585T-I/PT is well-suited to automotive body-electronics modules (door, seat, mirror controllers) that require CAN connectivity, multiple PWM outputs for motor drive, and ADC channels for current sensing. Its 2 CCP + 1 ECCP modules deliver the three complementary PWM channels needed for half-bridge driver control. The 12-channel 10-bit ADC samples thermistor and potentiometer inputs simultaneously, and 3.25 KB SRAM buffers CAN frames during gateway forwarding. Note: for under-hood environments choose an AEC-Q100 qualified variant rather than the industrial-grade LF6585T.
Được đề xuất
HVAC and Building Control
Building-automation controllers benefit from the PIC18LF6585T-I/PT's CAN connectivity for BACnet/Modbus gateways, plus 52 I/O to drive relays, triacs, and 0-10 V analog outputs for damper and valve actuators. The 48 KB Flash accommodates the full BACnet MS/TP or LonWorks application profile with room for custom scheduling logic. The LF 2.0-3.6 V core supports 24 VAC transformer-rectified supply rails without a step-down regulator, lowering BOM cost. Industrial-grade -40C to +85C operation tolerates rooftop and plant-room mounting.
Được đề xuất
Motor Control Front-End (Sensorless BLDC / PFC)
The PIC18LF6585T-I/PT's ECCP module with auto-shutdown and 40 ns PWM resolution is sufficient to drive sensorless BLDC or PFC front-end stages using the PIC18 reference design family. 12 ADC channels sample back-EMF, current, and bus voltage simultaneously with the 10-bit result. The 48 KB Flash holds Microchip's AN1078 sensorless BLDC or AN1114 digital PFC firmware library. Pair with a TC4427 gate driver and an IRFR3711 MOSFET stage for a 24 V / 5 A complete fan or pump drive.
Được đề xuất
Sensor Data-Acquisition and DAQ Modules
The PIC18LF6585T-I/PT's 12-channel 10-bit ADC and 52 I/O suit compact multi-channel data-acquisition modules that report over CAN or RS-485. The 1 KB EEPROM provides non-volatile calibration storage, while 3.25 KB SRAM buffers up to 200 samples at 10-bit resolution before CAN transmission. The 40 MHz core completes FFT averaging of 256-point blocks in real time, enabling vibration / acoustic-emission monitoring. The LF core voltage allows direct Li-ion battery operation for portable DAQ carts.
Được đề xuất
Smart Energy / Sub-Metering
Single-phase electricity sub-meters and energy-monitoring IoT nodes use the PIC18LF6585T-I/PT's ECAN to publish consumption data on building CAN backbones. 12 ADC channels sample line voltage and current via CTs and resistor dividers at 4 kHz, with the 40 MHz core computing true-RMS and fundamental-reactive power in real time. The 48 KB Flash accommodates a complete IEC 62053-21 class-1 meter algorithm. The LF core draws less than 1 mA active, ideal for line-powered meters with sleep-mode outage reporting.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF6585T-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 | PIC18LF6585-I/PT | PIC18LF6685-I/PT | PIC18LF6680-I/PT | PIC18F6585-I/PT | PIC18LF6525T-I/PT | PIC18LF6520T-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (10x10) | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same |
| Flash Memory | 48 KB | 48 KB | 64 KB | 64 KB | 48 KB | 48 KB | 32 KB |
| SRAM | 3.25 KB | 3.25 KB | 3.8 KB | 3.8 KB | 3.25 KB | 3.8 KB | 2 KB |
| EEPROM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Core Voltage | 2.0-3.6 V (LF) | 2.0-3.6 V (LF) | 2.0-3.6 V (LF) | 2.0-3.6 V (LF) | 4.2-5.5 V (F) | 2.0-3.6 V (LF) | 2.0-3.6 V (LF) |
| ECAN Module | Yes | Yes | Yes | Yes | Yes | Yes | No |
| USB | No | No | Yes (USB 2.0 OTG) | No | No | No | No |
| I/O Pins | 52 | 52 | 52 | 52 | 52 | 52 | 52 |
| Maximum Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
Bảo phân biệt quan trọng
- Tape-and-reel carrier for high-volume SMT assembly (vsPIC18LF6585-I/PT)
- LF core enables 3.3 V-only battery-backed designs (vsPIC18F6585-I/PT)
- Integrated ECAN 2.0B eliminates external CAN controller (vsPIC18LF6520T-I/PT)
Ghi chú thiết kế
The PIC18LF6585T-I/PT has multiple VDD/VSS pins (18, 19, 40, 41, 63, 64) plus separate AVDD/AVSS (20, 21). Place a 100 nF ceramic decoupling capacitor on every VDD pin and a single 10 uF bulk capacitor near the AVDD pin. Star-ground the analog and digital returns at the IC. The LF core is sensitive to VDD ripple - use a ferrite bead between digital and analog rails if ADC performance is critical.
For ECAN signaling integrity, route CANH/CANL as a differential pair with 120 ohm characteristic impedance, equal length, and ground reference. Place the MCP2551 transceiver within 25 mm of the ECANTX/ECANRX pins to minimize stub length and ringing. Use Microchip's AN228 / PIC18F ECAN layout guidelines (4-layer PCB preferred). Keep oscillator traces short and surround with a ground ring.
Do not forget the 1024 Tosc oscillator start-up timer (OST) delay after POR before executing timing-critical code. The MCLR pin requires a 10 kohm pull-up to VDD - leaving it floating prevents startup. Configure unused I/O pins as outputs (not inputs) to reduce supply current by ~1 mA total in sleep mode. Finally, the LF6585 must NOT be powered above 3.6 V (the non-LF PIC18F6585 supports 5 V); exceeding this damages the device.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page; the PT suffix denotes Pb-free matte-tin plating. AEC-Q100 not qualified - for under-hood automotive choose PIC18F25K80 / PIC18F46K80 AEC-Q100 family. Halogen-free status available on request from Microchip environmental compliance.
