PIC18F4585T-I/PT - 48KB Flash, 40MHz 8-bit MCU w/ ECAN | Microchip
MPN: PIC18F4585T-I/PT ✓ פעילPIC18F4585T-I/PT סקירה
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals onto one die. The PIC18 family sits in the hierarchy as: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. PIC18F devices use a RISC-based Harvard architecture with 16-bit wide instructions, 8-bit data path, and 31-level hardware stack, balancing deterministic real-time response with on-chip peripherals suited for embedded control.
Key features include ECAN 2.0B active module with hardware filtering, 10-bit Analog-to-Digital Converter (A/D) with up to 13 input channels, nanoWatt Technology for power-managed sleep modes, 36 digital I/O pins, and Capture/Compare/PWM (CCP) plus Enhanced CCP modules for motor and power control. The integrated ECAN makes the part well suited to industrial and automotive in-vehicle networks.
The PIC18F4585T-I/PT uses an enhanced Flash memory architecture supporting self-programming, IEEE 1149.1-compliant JTAG boundary scan, and ICSP (In-Circuit Serial Programming) via two pins. The "T" suffix indicates Tape and Reel packaging for high-volume assembly, while "I" denotes the industrial temperature grade (-40C to +85C).
Typical applications include CAN bus nodes in industrial automation, automotive body electronics, building automation HVAC controls, sensor data aggregation nodes, and consumer appliances requiring reliable 5V operation. The on-board ECAN reduces external component count versus designs using a stand-alone CAN transceiver IC plus discrete logic.
When designing with this MCU, ensure decoupling of VDD/VSS with 100 nF ceramic capacitors placed within 5 mm of each supply pin. The ECAN module requires a 3.3V or 5V compatible CAN transceiver such as MCP2551 or MCP2561 on the bus side; the internal ECAN handles only protocol framing.
This page synthesizes distributor stock and pricing, drop-in package-compatible alternatives, application-circuit design notes, and comparison tables not consolidated in the manufacturer datasheet, providing engineers a single reference for selecting, sourcing, and implementing PIC18F4585T-I/PT.
חלופות תחליף ישיר עבור PIC18F4585T-I/PT — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC18F4585T-I/PT (אותו גורם צורה וטביעת רגל) — שונים ב Package, Operating Temperature, Timers, ADC, Core Architecture.
PIC18F4585-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F4480-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F46K22-I/PT
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F4580-I/PT
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC18F4550-I/PT
✅ Drop-In✓ במלאי
$4.95 / יחידה
הצג גיליון נתונים ←PIC18F4585T-I/PT דירוגים מרביים ומאפיינים חשמליים
| Program Memory Type | Flash |
| Program Memory Size | 48 KB (24K x 16 words) |
| RAM Size | 3,328 bytes |
| EEPROM Size | 1 KB |
| CPU Core | PIC18 8-bit RISC |
| תדר שעון מקסימלי | 40 MHz |
| Instruction Cycle | 200 ns (4 clock cycles per instruction) |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| טווח טמפרטורת פעולה | -40 C to +85 C (Industrial) |
| I/O Pins | 36 |
| A/D Converter | 10-bit, up to 11 input channels (per datasheet) |
| CAN Module | ECAN 2.0B active |
| PWM Modules | 1 CCP + 1 ECCP |
| Communication Peripherals | ECAN, UART, SPI, I2C, MSSP |
| Timers | 4 (Timer0/1/2/3) |
| מארז | 44-pin TQFP (PT), 10x10 mm |
| סוג הרכבה | Surface Mount |
| רמת MSL | 3 (per JEDEC J-STD-020) |
| סטטוס RoHS | Compliant |
| Lead-Free / Halogen-Free | Yes |
| Brown-out Reset | Yes, programmable |
| Power-Saving Modes | nanoWatt Technology (Idle, Sleep, RC_RUN) |
תצורת פינים של PIC18F4585T-I/PT
| פין 1 | RC2/CCP1 — I/O pin / Capture-Compare-PWM 1 output |
| פין 2 | RC3/SCK/SCL — I/O / SPI clock / I2C clock |
| פין 3 | RC4/SDI/SDA — I/O / SPI data in / I2C data |
| פין 4 | RC5/SDO — I/O / SPI data out |
| פין 5 | RC6/TX/CK — I/O / EUSART asynchronous transmit / clock |
| פין 6 | RC7/RX/DT — I/O / EUSART asynchronous receive / data |
| פין 7 | RD0/ECANRX — I/O / ECAN receive input |
| פין 8 | RD1/ECANTX — I/O / ECAN transmit output |
| פין 9 | RD2 — I/O port D bit 2 |
| פין 10 | RD3 — I/O port D bit 3 |
| פין 11 | RC0/T1OSO/T1CKI — I/O / Timer1 oscillator out / Timer1 clock in |
| פין 12 | RC1/T1OSI/ECCP2 — I/O / Timer1 oscillator in / Enhanced CCP2 output |
| פין 13 | RC2/CCP1 — I/O / CCP1 output (alternate location) |
| פין 14 | OSC1/CLKI/RA7 — Crystal oscillator input / external clock / GPIO |
| פין 15 | OSC2/CLKO/RA6 — Crystal oscillator output / clock out / GPIO |
| פין 16 | T0CKI/RA3 — Timer0 clock input / GPIO |
| פין 17 | RA0/AN0 — GPIO / Analog input 0 |
| פין 18 | RA1/AN1 — GPIO / Analog input 1 |
| פין 19 | RA2/AN2/VREF- — GPIO / Analog input 2 / ADC VREF- |
| פין 20 | RA3/AN3/VREF+ — GPIO / Analog input 3 / ADC VREF+ |
| פין 21 | RA4/T0CKI — GPIO / Timer0 clock (alternate) |
| פין 22 | RA5/AN4/SS — GPIO / Analog input 4 / SPI slave select |
| פין 23 | RE0/RD/AN5 — GPIO / parallel slave port read / Analog input 5 |
| פין 24 | RE1/WR/AN6 — GPIO / parallel slave port write / Analog input 6 |
| פין 25 | RE2/CS/AN7 — GPIO / parallel slave port chip select / Analog input 7 |
| פין 26 | VDD — Positive supply (4.2V to 5.5V) |
| פין 27 | VSS — Ground reference |
| פין 28 | OSC1/RA7 — Oscillator input (alternate) |
| פין 29 | OSC2/RA6 — Oscillator output (alternate) |
| פין 30 | RB0/INT0/FLT0 — GPIO / external interrupt 0 / PWM fault input |
| פין 31 | RB1/INT1 — GPIO / external interrupt 1 |
| פין 32 | RB2/INT2/CANTX — GPIO / external interrupt 2 / ECAN TX (alt) |
| פין 33 | RB3/CANRX — GPIO / ECAN RX (alt) |
| פין 34 | RB4 — GPIO / interrupt-on-change |
| פין 35 | RB5 — GPIO / interrupt-on-change |
| פין 36 | RB6/PGC — GPIO / interrupt-on-change / ICSP clock |
| פין 37 | RB7/PGD — GPIO / interrupt-on-change / ICSP data |
| פין 38 | MCLR/VPP/RE3 — Master clear reset / programming voltage / GPIO |
| פין 39 | RD4 — I/O port D bit 4 |
| פין 40 | RD5 — I/O port D bit 5 |
| פין 41 | RD6 — I/O port D bit 6 |
| פין 42 | RD7 — I/O port D bit 7 |
| פין 43 | VSS — Ground reference (second) |
| פין 44 | VDD — Positive supply (second) |
יישומים טיפוסיים
PIC18F4585T-I/PT מתאים עבור 6 יישוםs: Industrial CAN Bus Sensor Node, Automotive Body Electronics ECU, Building Automation HVAC Controller, Consumer Appliance User Interface Board, Sensor Data Aggregator Hub, Small DC Motor Control Board.
Industrial CAN Bus Sensor Node
The PIC18F4585T-I/PT is well suited to industrial CAN bus sensor nodes because its integrated ECAN 2.0B active peripheral offloads protocol framing from the CPU, leaving the 40 MHz / 10 MIPS PIC18 core free for sensor acquisition and data pre-processing. Its 10-bit ADC with up to 11 input channels handles temperature, pressure, or current sensing directly, while the 36 GPIO pins drive status LEDs, switches, and digital sensor I/O. The 5V VDD matches industrial 24V-bus-derived rails after regulation, simplifying PSU design. Compared with discrete CAN solutions, the integrated module reduces PCB area and BOM cost. Use it in 24V factory automation and process-control nodes where deterministic real-time response is required.
מומלץ
Automotive Body Electronics ECU
The PIC18F4585T-I/PT fits non-safety automotive body-electronics modules such as HVAC, lighting, mirror control, and seat-position ECUs that require CAN bus connectivity and industrial -40C to +85C operation. Its nanoWatt Technology puts the ECU into single-digit microamp Sleep current when the bus is silent, preserving vehicle battery life during parked periods. The 48 KB Flash accommodates protocol stacks, while the 1 KB EEPROM stores calibration data non-volatilely. CCP/ECCP modules drive relays, motors, and dimming PWM loads directly. For under-hood or AEC-Q100 safety-critical modules, upgrade to a graded PIC18 K-series or dsPIC33 part instead.
מומלץ
Building Automation HVAC Controller
The PIC18F4585T-I/PT serves building-automation HVAC controllers that need CAN or UART connections to indoor air-quality, damper, and chiller sub-systems. Its 36 I/O pins read pushbuttons, rotary encoders, NTC thermistors, and occupancy sensors while driving triac-gated fans, valves, and 7-segment or LCD status displays. The industrial temperature grade operates reliably inside mechanical rooms where ambient temperature can rise above 70C. The 48 KB Flash holds BACnet or Modbus-to-CAN bridging firmware, and the 3,328-byte RAM accommodates message buffers without dynamic allocation.
מומלץ
Consumer Appliance User Interface Board
The PIC18F4585T-I/PT is appropriate for high-end consumer-appliance user-interface boards in washing machines, dishwashers, induction cooktops, and oven-front panels where a single 5V MCU must drive both HMI and CAN communication to the power-and-motor board. The 10-bit ADC reads knob positions and temperature sense inputs, while the PWM channels control LED dimming, beeper tones, and relay drivers. The 48 KB Flash supports multi-language fonts and graphic icon libraries, and the 1 KB EEPROM stores user-defined settings. Industrial temperature grade accommodates the enclosed-cabinet heat-rise environment inside appliances.
מומלץ
Sensor Data Aggregator Hub
The PIC18F4585T-I/PT fits sensor-data aggregator hubs that fan-in UART, SPI, and I2C sensor traffic and forward aggregated frames over CAN to a master controller. The MSSP peripheral simultaneously drives SPI and I2C sensors, while the UART handles RS-485 modem links. The 48 KB Flash holds sensor drivers and timestamp-aggregation algorithms, and the ECAN peripheral publishes aggregated telemetry frames at deterministic intervals. Industrial temperature operation suits outdoor enclosure or factory-floor mounting.
מומלץ
Small DC Motor Control Board
The PIC18F4585T-I/PT drives small DC and brushless-DC motors in fans, blowers, pumps, and conveyor segments via its CCP and Enhanced CCP (ECCP) modules. The ECCP provides complementary PWM outputs with programmable dead-band, eliminating external gate-driver logic for half-bridge or full-bridge FETs. The QEI (Quadrature Encoder Interface) reads incremental encoder feedback for closed-loop speed/position control. The 40 MHz CPU closes the loop fast enough for 60 Hz response bandwidth, and the 36 I/O lines carry limit switches, brake relays, and LED status indicators.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC18F4585T-I/PT — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC18F4585-I/PT | PIC18F4480-I/PT | PIC18F46K22-I/PT | PIC18F4580-I/PT | PIC18F4550-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-44 (10x10 mm) | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same |
| Program Memory (Flash) | 48 KB | 48 KB | 16 KB | 64 KB | 32 KB | 32 KB |
| RAM Size | 3,328 bytes | 3,328 bytes | 768 bytes | 3,896 bytes | 1,536 bytes | 2,048 bytes |
| Maximum Clock | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 64 MHz / 16 MIPS | 40 MHz / 10 MIPS | 48 MHz / 12 MIPS |
| CAN Module | ECAN 2.0B active | ECAN 2.0B active | No CAN | No CAN (ECAN via PPS on K22) | No CAN | No CAN |
| USB Peripheral | No | No | No | No | No | USB 2.0 FS Device/Host/OTG |
| Supply Voltage | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 2.3 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V |
| A/D Converter | 10-bit, up to 11 channels | 10-bit, up to 11 channels | 10-bit, up to 11 channels | 10-bit, up to 28 channels | 10-bit, up to 11 channels | 10-bit, up to 13 channels |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
מבדילים עיקריים
- Integrated ECAN 2.0B active peripheral (לעומתPIC18F4580-I/PT)
- Larger Flash + RAM memory (לעומתPIC18F4580-I/PT)
- Dedicated 48 KB Flash variant with same footprint (לעומתPIC18F4480-I/PT)
הערות תכנון
Decouple each VDD/VSS pair with a 100 nF X7R ceramic capacitor placed within 5 mm of the IC pins, and add a bulk 10 uF tantalum or aluminum-polymer capacitor near the device. The PIC18F4585T-I/PT has two VDD pins (26, 44) and two VSS pins (27, 43); both must be connected. AVdd/AVss share the analog supply; if ADC accuracy is critical, isolate AVdd with a ferrite bead or 10 ohm resistor plus a dedicated 10 uF/100 nF decoupling pair.
Route the ECAN RX/TX traces (RD1 = ECANTX, RD0 = ECANRX) as short, matched-length differential pairs to the external MCP2551/MCP2561 transceiver. Keep bus length under 100 mm and avoid routing near high-frequency switching nodes. MCLR (pin 38) requires a 10 kohm pull-up to VDD plus a 100 nF cap to ground for noise immunity, with a diode to VDD for fast discharge during in-circuit programming per Microchip's ICSP recommendations.
Do not exceed VDD of 5.5 V absolute maximum; the PIC18F4585T-I/PT is NOT a 3.3V part - operation below 4.2 V is out-of-spec. Ensure the crystal or external oscillator drive level stays within the 40 MHz rating, and that the ECAN peripheral is correctly configured for the bus baud rate (the SJW, PRSEG, SEG1PH, SEG2PH, BRP registers must be tuned per ECAN timing). Per datasheet, unused I/O pins should be configured as outputs low to minimize supply current in Sleep mode.
Estimated: At typical 25C ambient with 40 MHz CPU at 5V VDD and ECAN active, the PIC18F4585T-I/PT draws approximately 16 mA (about 80 mW). At extended industrial +85C ambient inside a sealed enclosure, junction rise is negligible for the TQFP-44 package (theta_JA approximately 50 C/W), keeping Tj well below the +150C absolute maximum. Designers planning fanless enclosure operation should still verify worst-case Tj in their thermal model.
מידע על תאימות
Per Microchip product page and datasheet DS39637E, PIC18F4585T-I/PT is RoHS compliant, lead-free, halogen-free, and JEDEC J-STD-020 MSL-3 rated. AEC-Q100 qualification not available for this part; for AEC-Q100 automotive, refer to PIC18 K-series automotive grades.