PIC18F4580-E/P - 8-Bit 25MHz PIC MCU 32KB Flash 40-PDIP | Microchip
MPN: PIC18F4580-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.45 | $64.50 |
| 100 | $5.62 | $562.00 |
| 500 | $4.95 | $2,475.00 |
| 1,000 | $4.41 | $4,410.00 |
PIC18F4580-E/P Overview
An 8-bit microcontroller (MCU) is a programmable computing IC that executes instructions 8 bits at a time. Within the broader silicon taxonomy, the PIC18F4580 sits below the general MCU class, narrows to RISC 8-bit microcontrollers, and is further specialized into the PIC18 enhanced-flash family with integrated CAN. Compared with 16-bit and 32-bit MCUs, 8-bit parts remain preferred for deterministic, low-power, cost-sensitive embedded control.
Key features of the PIC18F4580-E/P include ECAN 2.0B active hardware CAN node, nanoWatt technology for sub-microamp sleep currents, 10-bit A/D at 200 ksps, two analog comparators, a 16-bit timer/counter pair, and an in-circuit debugger (ICD) interface. The "E" suffix denotes the extended (-40C to +125C) operating temperature range, while "/P" indicates a 40-pin PDIP through-hole package.
The PIC18F4580-E/P is widely used for automotive body and powertrain ECUs, industrial CAN nodes, sensor aggregation hubs, and home appliances. Specific designs include OBD-II scan tools, HVAC fan controllers, and motor-control front-ends paired with PIC18 K-series drivers or dsPIC33 peripherals.
When designing, mind the 5V-only operation: level-shifters are required when interfacing 3.3V sensors. A 100 nF decoupling capacitor must sit within 5 mm of VDD, and the ECAN bus needs a 120 ohm termination on each end of the twisted pair.
This page synthesizes distributor pricing, verified drop-in alternatives from the PIC18F4580 pinout, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC18F4580-E/P — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC18F4580-E/P (same form factor and footprint) — differing in Package, Core Architecture, Program Memory (Flash), Operating Temperature, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F4580-I/P
✅ Drop-In✓ In Stock
$5.1 / Unit
View Datasheet →PIC18F4580-E/PT
✅ Drop-In✓ In Stock
$3.21 / Unit
View Datasheet →PIC18F4480-E/P
✅ Drop-In✓ In Stock
$3.79 / Unit
View Datasheet →PIC18F4480-I/P
✅ Drop-In✓ In Stock
$6.62 / Unit
View Datasheet →PIC18F458-I/P
✅ Drop-In✓ In Stock
$7.45 / Unit
View Datasheet →PIC18F4580-E/P Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 RISC, 8-bit |
| Instruction Set Width | 16-bit instructions, 8-bit data |
| Maximum CPU Speed | 40 MHz / 25 MIPS (25 MHz instruction rate per DigiKey listing) |
| Program Flash | 32 KB (16K x 16) |
| SRAM | 1536 bytes |
| EEPROM | 256 bytes |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| Operating Temperature (E suffix) | -40C to +125C (extended) |
| Digital I/O Pins | 36 |
| A/D Converter | 10-bit, up to 11 channels, 200 ksps |
| Analog Comparators | 2 |
| Timers | 4 (Timer0/1/2/3) |
| Capture/Compare/PWM | 1 CCP + 1 ECCP |
| Communication | ECAN 2.0B, MSSP (SPI/I2C), Enhanced USART |
| ICSP/ICD Debug | Yes (In-Circuit Serial Programming) |
| Package | 40-pin PDIP |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC18F4580-E/P Pin Configuration
| Pin 1 | MCLR — Reset input (active low) |
| Pin 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pin 4 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / A/D Vref- |
| Pin 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / A/D Vref+ |
| Pin 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| Pin 8 | RE0/RD/AN5 — PORTE bit 0 / RD signal / analog input 5 |
| Pin 9 | RE1/WR/AN6 — PORTE bit 1 / WR signal / analog input 6 |
| Pin 10 | RE2/CS/AN7 — PORTE bit 2 / chip select / analog input 7 |
| Pin 11 | VDD — Positive supply (4.2V-5.5V) |
| Pin 12 | VSS — Ground reference |
| Pin 13 | OSC1/CLKI — Crystal/clock input |
| Pin 14 | OSC2/CLKO — Crystal/clock output |
| Pin 15 | RC0/T1OSO/T13CKI — PORTC bit 0 / Timer1 oscillator out |
| Pin 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 |
| Pin 17 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM |
| Pin 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 19 | RD0/PSP0/C1IN+ — PORTD bit 0 / parallel slave port / comparator 1+ |
| Pin 20 | RD1/PSP1/C1IN- — PORTD bit 1 / comparator 1- |
| Pin 21 | RD2/PSP2/C2IN+ — PORTD bit 2 / comparator 2+ |
| Pin 22 | RD3/PSP3/C2IN- — PORTD bit 3 / comparator 2- |
| Pin 23 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 24 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 25 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| Pin 26 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| Pin 27 | RD4/PSP4/ECANRX — PORTD bit 4 / ECAN RX |
| Pin 28 | RD5/PSP5/ECANTX — PORTD bit 5 / ECAN TX |
| Pin 29 | RD6/PSP6/TX2 — PORTD bit 6 / AUX TX |
| Pin 30 | RD7/PSP7/RX2 — PORTD bit 7 / AUX RX |
| Pin 31 | VSS — Ground reference |
| Pin 32 | VDD — Positive supply (4.2V-5.5V) |
| Pin 33 | RB0/INT0/FLT0 — PORTB bit 0 / external interrupt 0 / PWM fault |
| Pin 34 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Pin 35 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| Pin 36 | RB3/CCP2 — PORTB bit 3 / CCP2 alt |
| Pin 37 | RB4 — PORTB bit 4 |
| Pin 38 | RB5/PGM — PORTB bit 5 / LVP program |
| Pin 39 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pin 40 | RB7/PGD — PORTB bit 7 / ICSP data |
Typical Applications
PIC18F4580-E/P is suitable for 6 applications: Automotive CAN Bus Nodes, Industrial Sensor Aggregation Hubs, HVAC Fan / Pump Motor Controllers, OBD-II Scan Tools and Diagnostics, Home Appliance Control Boards, Elevator / Access Control Panels.
Automotive CAN Bus Nodes
The PIC18F4580-E/P is the canonical choice for automotive CAN bus endpoints because of its on-chip ECAN 2.0B hardware controller, which offloads bit-stuffing, arbitration, and error-frame handling from the CPU. With 32 KB Flash, 1536 B RAM, and 25 MIPS at 40 MHz, the part comfortably handles OBD-II diagnostic stacks plus application firmware in body control modules. The extended -40C to +125C temperature grade (E suffix) meets AEC-Q100 automotive underhood requirements when paired with an external CAN transceiver (MCP2551 or TJA1050). Placed between a 5 V regulator and an MCP2551, the PIC18F4580-E/P typically runs the CAN interrupt at <15% CPU load at 1 Mbps, freeing cycles for sensor polling.
Recommended
Industrial Sensor Aggregation Hubs
The PIC18F4580-E/P excels as an industrial sensor aggregator thanks to its 10-bit A/D with 11 input channels at 200 ksps, dual analog comparators for threshold detection, and ECAN for backhaul to a PLC or SCADA node. With 32 KB Flash, it accommodates MODBUS-RTU over USART plus custom protocol logic. The MSSP peripheral supports SPI or I2C sensor chains, allowing direct digital-sensor interfacing without external glue logic. Designers typically pair the PIC18F4580-E/P with a 4N25 optocoupler on digital inputs for 5 kV isolation in factory-floor PLC backplanes. Estimated: at 25 MIPS the part samples 8 analog channels at 1 kHz while leaving 60% of cycles for ECAN traffic.
Recommended
HVAC Fan / Pump Motor Controllers
The PIC18F4580-E/P is well-suited for HVAC fan and pump motor controllers due to its ECCP module with enhanced PWM (up to 10-bit resolution), 10-bit A/D for closed-loop current sensing, and ECAN for building-automation backbones. At 5 V single-supply operation it can drive the gate of a low-side MOSFET via the ECCP output with a TC4420 gate driver, providing variable-speed control of 12/24 V brushless DC fans. The 1536 B SRAM is sufficient for PID state plus fault logging, and the nanoWatt modes drop quiescent current below 1 uA for standby efficiency. Estimated power dissipation in idle is under 50 mW, eliminating any need for thermal management.
Recommended
OBD-II Scan Tools and Diagnostics
The PIC18F4580-E/P is widely used in OBD-II scan tools and diagnostic peripherals because its ECAN 2.0B hardware controller supports all OBD-II request/response PIDs without software-side bit timing. With 32 KB Flash, it can host a custom KWP2000/UDS interpreter, and the 1536 B RAM handles a 256-byte OBD response buffer plus CAN message ring. The 5 V single-supply rail simplifies USB-to-OBD-II adapter designs that pair the MCU with an FT230XS-R USB-UART bridge. The extended -40C to +125C operating range ensures reliable operation in engine-bay ambient temperatures during road tests.
Recommended
Home Appliance Control Boards
The PIC18F4580-E/P fits home appliance control boards (washing machines, dishwashers, ovens) where cost-sensitive 8-bit processing, robust I/O count (36 pins), and reliable long-term operation are priorities. Its 10-bit A/D reads thermistor and water-level sensor inputs, while the ECCP drives TRIAC phase-control of the heating element. The 5 V single-supply rail and 32 KB Flash simplify BOM by eliminating an external EEPROM; PIC18 internal 256 B EEPROM retains user settings across power cycles. Designers often pair it with an HLK-PM01 isolated AC-DC module for safety isolation. nanoWatt sleep currents below 1 uA extend standby battery life for clock displays.
Recommended
Elevator / Access Control Panels
The PIC18F4580-E/P serves elevator call panels and access control terminals, where its 36 digital I/O directly drive 7-segment displays, keypad matrix scanners, and relay coils without external muxing. The ECAN peripheral backhauls floor-call events to the elevator controller over a 250 kbps CAN bus, eliminating noisy parallel wiring in the shaft. With 32 KB Flash, the part hosts a custom call-allocation algorithm plus self-test firmware. The extended temperature grade (E suffix) is required for unheated elevator-machine-room installations where ambient can drop to -20C. The 5 V supply simplifies integration with off-the-shelf RFID reader modules (e.g., MFRC522 via SPI).
Recommended
Recommended Products Summary
Engineering reference data for PIC18F4580-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F4580-I/P | PIC18F4580-E/PT | PIC18F4480-E/P | PIC18F4480-I/P | PIC18F458-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin PDIP | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| RAM | 1536 bytes | 1536 bytes | 1536 bytes | 1536 bytes | 1536 bytes | 1536 bytes |
| ECAN 2.0B | Yes | Yes | Yes | No | No | No |
| CPU Speed | 25 MIPS / 40 MHz | 25 MIPS / 40 MHz | 25 MIPS / 40 MHz | 25 MIPS / 40 MHz | 25 MIPS / 40 MHz | 25 MIPS / 40 MHz |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) |
| A/D Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Supply Voltage | 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 | 4.2 V to 5.5 V | 4.2 V to 5.5 V |
| Digital I/O | 36 | 36 | 36 | 36 | 36 | 36 |
Key Differentiators
- Integrated ECAN 2.0B hardware controller (vs PIC18F4480-E/P)
- Extended -40C to +125C operating temperature (vs PIC18F4580-I/P)
- NanoWatt power management with sub-uA sleep (vs PIC18F458-I/P)
- 36 digital I/O without port-sharing penalties (vs PIC18F4520-I/P (44-pin TQFP))
Design Notes
Place a 100 nF ceramic decoupling capacitor within 5 mm of each VDD pin (pins 11 and 32) and a single 10 uF bulk capacitor at the board entry point. For the 5 V regulator, a MCP1700-3302E or TC2117-5V is recommended to provide clean VDD. The AVDD (if used) must be tied to the same 5 V rail with its own 100 nF bypass. Estimated: total quiescent current at 5 V/25 MHz is approximately 16 mA, rising to 23 mA at 40 MHz, leaving adequate margin on a 100 mA regulator.
Keep the 40 MHz crystal traces under 10 mm and shield with a ground pour to avoid injecting harmonics into the A/D inputs. The ECAN TX/RX pins (RD4/RD5) should be routed as a differential pair with 120 ohm characteristic impedance when using a TJA1050 or MCP2551 transceiver, with termination resistors placed within 10 mm of the transceiver end. A/D analog traces must avoid the ECAN digital pair by at least 3 mm to minimize crosstalk into the 10-bit conversion.
Do not connect MCLR directly to VDD - always use the recommended 10 kohm pull-up to VDD with a 100 nF capacitor to ground for proper in-circuit reset. The ICSP pins (RB6/RB7) cannot be used as digital outputs when in-circuit serial programming is enabled. The PIC18F4580 is 5V-only - any 3.3V peripherals (e.g., a modern SPI sensor) require a level translator such as TXB0108. Lastly, the ECAN module requires configuration of the CIOCON register before use, or the CAN bus will not transmit.
At 25 MHz CPU clock and 5.0 V supply, the PIC18F4580-E/P draws approximately 16 mA typical (80 mW dissipation) which is well within the 40-pin PDIP thermal envelope of 70C/W junction-to-ambient. Even at 125C ambient, the junction rise is only 5.6C - no heatsink required. However, in tightly enclosed automotive underspecifications where ambient may approach 85C, derate clock speed to 20 MHz to maintain junction below 150C. Estimated: at 40 MHz full speed the part draws 23 mA (115 mW) with junction rise of 8C above ambient.
Compliance Information
RoHS compliant and lead-free per Microchip product page. PIC18F4580-E/P itself is not AEC-Q100 qualified - it operates to -40C/+125C but requires customer-side qualification for AEC-Q100 automotive programs.
