PIC18F458-E/L - 8-Bit 40MHz 32KB Flash MCU w/ CAN | Microchip
MPN: PIC18F458-E/L ✓ פעילPIC18F458-E/L סקירה
A PIC microcontroller is a microcontroller unit (MCU) based on Microchip's PIC (Peripheral Interface Controller) RISC architecture, which combines a Harvard-architecture CPU core with on-chip Flash, RAM, and a rich peripheral set. PIC18 is the high-performance 8-bit family using an enhanced instruction set, 16-bit wide instructions, and a hardware multiply engine. In a system hierarchy, PIC18F458 sits within PIC microcontrollers -> 8-bit microcontrollers -> microcontrollers (MCU) -> semiconductor ICs. The integrated CAN module is the defining feature distinguishing the PIC18F458 from the otherwise identical PIC18F452, enabling direct CAN-bus connectivity in automotive and industrial networks.
Key features include: 32KB self-programmable Flash with 1K erase granularity, 1536-byte SRAM, 256-byte EEPROM, 40 MHz max clock (10 MIPS throughput), hardware CAN 2.0B module, 10-bit 8-channel ADC with auto-acquisition, Capture/Compare/PWM (CCP) modules, two enhanced CCP modules for motor-control PWM, two 8-bit timers plus three 16-bit timers, two analog comparators, and an ICD (In-Circuit Debugger) interface. The device supports 5V operation and supports both internal and external oscillator modes including HS, XT, LP, RC and the 4x PLL.
The PIC18F458-E/L is fabricated on a non-volatile Flash CMOS process and integrates a hardware CAN 2.0B engine with acceptance filters, providing bus arbitration, error detection, and automatic retransmission conforming to ISO 11898. The PIC18 enhanced core executes one instruction every four clock cycles, supporting linear program memory up to 2 MB via a 21-bit program counter. Multiple power-managed modes (Run, Idle, Sleep) and a low-power watchdog timer support battery-backed designs.
Typical applications include CAN node endpoints in industrial automation, automotive body and chassis ECUs, building automation networks (BACnet/HVAC), motor-control inverter boards, smart-sensor aggregators, and CAN-based point-of-sale equipment. The extended temperature grade (-40C to +125C) opens use cases in under-hood automotive and outdoor industrial cabinets. Common companion parts include the MCP2551 CAN transceiver, MCP2515 stand-alone CAN controller (for legacy nodes), and TC1015 LDO for 5V rail regulation.
When designing with the PIC18F458-E/L, ensure the CAN TX/RX pins are paired with a proper ISO 11898 transceiver such as the MCP2551, and that bus termination (120 ohm) is present at each cable end. Programming/debugging is supported through MPLAB ICD 5 / ICD 4 / PICKit 4 / PICKit 5 using the ICSP interface on RB6/RB7. The 'E' (extended) grade variant should be selected when the operating environment exceeds the standard 0C-70C commercial range.
This page synthesizes drop-in Microchip PIC18F alternates, verified distributor pricing, and application notes not consolidated in the original manufacturer datasheet - useful as a quick-reference for procurement and design engineers evaluating 44-pin PLCC CAN-enabled 8-bit MCU options.
חלופות תחליף ישיר עבור PIC18F458-E/L — 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 PIC18F458-E/L (אותו גורם צורה וטביעת רגל) — שונים ב Timers, Package, Core Architecture, Mounting Type, ADC.
PIC18F458-I/L
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F448-E/L
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F452-E/L
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F4480-I/L
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC18F458-E/L דירוגים מרביים ומאפיינים חשמליים
| Family | PIC18F |
| Core Architecture | PIC18 (Enhanced 8-bit RISC) |
| Program Memory (Flash) | 32 KB (16K x 16) |
| RAM | 1536 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Clock | 40 MHz |
| Performance | 10 MIPS |
| Operating Voltage (Vdd) | 4.2 V to 5.5 V |
| I/O Pins | 34 |
| ADC | 10-bit, up to 8 channels |
| CAN Module | CAN 2.0B with acceptance filters |
| Timers | Two 8-bit + three 16-bit |
| PWM / CCP | 1 CCP + 2 Enhanced CCP (ECCP) |
| Communication Interfaces | CAN, MSSP (SPI/I2C), USART |
| Comparators | 2 analog comparators |
| מארז | 44-pin PLCC (J-lead, 16.59 x 16.59 mm) |
| Operating Temperature Grade | Extended (-40C to +125C) |
| סוג הרכבה | Surface Mount (PLCC socket compatible) |
תצורת פינים של PIC18F458-E/L
| פין 1 | RA2/AN2/VREF- — Digital I/O / Analog input 2 / ADC negative reference |
| פין 2 | RA3/AN3/VREF+ — Digital I/O / Analog input 3 / ADC positive reference |
| פין 3 | RA4/T0CKI — Digital I/O / Timer0 clock input |
| פין 4 | RA5/AN4/SS — Digital I/O / Analog input 4 / SPI slave select |
| פין 5 | Vss — Ground |
| פין 6 | OSC1/CLKI — Crystal oscillator input / external clock input |
| פין 7 | OSC2/CLKO — Crystal oscillator output / clock output |
| פין 8 | RC0/T1OSO/T1CKI — Digital I/O / Timer1 oscillator output / Timer1 clock input |
| פין 9 | RC1/T1OSI/CCP2 — Digital I/O / Timer1 oscillator input / CCP2 output |
| פין 10 | RC2/CCP1 — Digital I/O / CCP1 output |
| פין 11 | RC3/SCK/SCL — Digital I/O / SPI clock / I2C clock |
| פין 12 | RC4/SDI/SDA — Digital I/O / SPI data in / I2C data |
| פין 13 | RC5/SDO — Digital I/O / SPI data out |
| פין 14 | RC6/TX/CK — Digital I/O / USART TX / USART clock |
| פין 15 | RC7/RX/DT — Digital I/O / USART RX / USART data |
| פין 16 | Vss — Ground |
| פין 17 | Vdd — Digital supply voltage (+5V) |
| פין 18 | RB0/INT0 — Digital I/O / External interrupt 0 |
| פין 19 | RB1/INT1 — Digital I/O / External interrupt 1 |
| פין 20 | RB2/CANTX — Digital I/O / CAN bus transmit output |
| פין 21 | RB3/CANRX — Digital I/O / CAN bus receive input |
| פין 22 | RB4 — Digital I/O |
| פין 23 | RB5 — Digital I/O |
| פין 24 | RB6/PGC — Digital I/O / ICSP clock (programming/debug) |
| פין 25 | RB7/PGD — Digital I/O / ICSP data (programming/debug) |
| פין 26 | RB8/ECCP1 — Digital I/O / Enhanced CCP1 output (PWM) |
| פין 27 | RB9/ECCP2 — Digital I/O / Enhanced CCP2 output (PWM) |
| פין 28 | AVss — Analog ground |
| פין 29 | AVdd — Analog supply voltage (+5V) |
| פין 30 | RA0/AN0 — Digital I/O / Analog input 0 |
| פין 31 | RA1/AN1 — Digital I/O / Analog input 1 |
| פין 32 | RD0/ECCP3 — Digital I/O / Enhanced CCP3 output (PWM) |
| פין 33 | RD1/ECCP4 — Digital I/O / Enhanced CCP4 output (PWM) |
| פין 34 | RD2 — Digital I/O |
| פין 35 | RD3 — Digital I/O |
| פין 36 | RD4 — Digital I/O |
| פין 37 | RD5 — Digital I/O |
| פין 38 | RD6 — Digital I/O |
| פין 39 | RD7 — Digital I/O |
| פין 40 | RE0/RD — Digital I/O / Parallel port read control |
| פין 41 | RE1/WR — Digital I/O / Parallel port write control |
| פין 42 | RE2/CS — Digital I/O / Parallel port chip select |
| פין 43 | Vdd — Digital supply voltage (+5V) |
| פין 44 | Vss — Ground |
יישומים טיפוסיים
PIC18F458-E/L מתאים עבור 6 יישוםs: Industrial CAN Node, Automotive Body/Chassis ECU, Building Automation / HVAC Network, Motor Control Inverter Board, Smart Sensor Aggregator / Gateway, Point-of-Sale / Vending CAN Network.
Industrial CAN Node
The PIC18F458-E/L's integrated CAN 2.0B controller and 32KB Flash make it a natural fit for industrial CANopen or DeviceNet slave nodes. With the on-chip CAN engine supporting standard and extended identifiers plus acceptance filters, the MCU can offload bus arbitration, error handling, and automatic retransmission in hardware, freeing the 10 MIPS CPU for application logic. Place the PIC18F458-E/L between the field sensor/actuator and an external MCP2551 ISO 11898 transceiver; the 5V PLCC-44 package operates across the full -40C to +125C extended industrial range required for factory cabinets.
מומלץ
Automotive Body/Chassis ECU
The PIC18F458-E/L's CAN 2.0B interface and Extended temperature grade (-40C to +125C) suit it for automotive body and chassis ECUs where LIN/CAN nodes aggregate sensor data. The PIC18F458-E/L's hardware CAN controller handles bit-timing per CAN 2.0B (1 Mbps), and the 10-bit ADC samples analog sensors (e.g. thermistors, potentiometers) while two ECCP modules drive PWM outputs for LED dimming or small DC loads. Pair the MCU with the MCP2551 transceiver and an MCP1700 LDO; PLCC-44 packaging allows socket-mounting for serviceability in dealer-serviceable modules.
מומלץ
Building Automation / HVAC Network
BACnet MS-TP and similar HVAC fieldbus networks benefit from the PIC18F458-E/L's CAN 2.0B controller, 32KB Flash for protocol stacks, and 1536B RAM for message buffers. The MCU's USART can interface to BACnet MS-TP (RS-485) via an external transceiver such as the MAX485, while the CAN module handles an internal high-speed bus between controller boards. The Extended temperature grade ensures reliable operation in plant rooms and rooftop units where ambient temperatures exceed 70C. The 40 MHz CPU executes 10 MIPS - sufficient for BACnet scheduling and sensor fusion.
מומלץ
Motor Control Inverter Board
The PIC18F458-E/L features two Enhanced CCP modules capable of complementary PWM output with programmable dead-band - the standard hardware block for three-phase motor inverters. Combined with the 10-bit ADC (sampling at up to 8 channels for phase currents and bus voltage) and 40 MHz CPU, the MCU can implement sensorless BLDC or trapezoidal ACIM control up to moderate power levels. The integrated CAN module also enables networked drives. A gate-driver IC like the MCP8024 or IR2104 is needed between the MCU's PWM outputs and the IGBT/MOSFET bridge.
מומלץ
Smart Sensor Aggregator / Gateway
Industrial gateways aggregating 4-20mA or 0-10V analog sensors from multiple field devices often use the PIC18F458-E/L as a CAN-to-sensor bridge. The MCU's 10-bit ADC with up to 8 channels handles 4-8 sensor inputs simultaneously, while the integrated CAN module forwards conditioned readings to a master PLC. The 32KB Flash accommodates CANopen or proprietary protocol stacks with calibration data, and 1536B RAM is adequate for buffering measurements between CAN transmissions. Operating from a single 5V rail with low-power Sleep mode makes it suitable for solar-powered remote cabinets.
מומלץ
Point-of-Sale / Vending CAN Network
Vending machines and POS peripherals increasingly use CAN for backplane communication between the bill acceptor, card reader, and main controller. The PIC18F458-E/L serves as a low-cost CAN node on each peripheral module: its on-chip CAN 2.0B engine handles bus arbitration among multiple peripherals, and its 34 I/O lines drive keypads, displays, and LEDs. The PLCC-44 package simplifies serviceability - field-replaceable peripherals can use socket-mounted PIC18F458-E/L boards. The Extended temperature range suits outdoor vending enclosures.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC18F458-E/L — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC18F458-I/L | PIC18F448-E/L | PIC18F452-E/L | PIC18F4480-I/L |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin PLCC (J-lead) | 44-pin PLCC (J-lead) - same | 44-pin PLCC (J-lead) - same | 44-pin PLCC (J-lead) - same | 44-pin PLCC (J-lead) - same |
| Program Memory (Flash) | 32 KB | 32 KB | 16 KB | 32 KB | 32 KB |
| CAN Module | CAN 2.0B | CAN 2.0B | CAN 2.0B | None (CAN pins = GPIO) | Enhanced CAN |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| Max CPU Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| RAM | 1536 bytes | 1536 bytes | 1536 bytes | 1536 bytes | 1536 bytes |
| Lifecycle Status | Active | Active | Active | Active | Active |
מבדילים עיקריים
- Integrated CAN 2.0B controller eliminates external MCP2515 (לעומתPIC18F452-E/L)
- Extended temperature grade for automotive/under-hood use (לעומתPIC18F458-I/L)
- 32KB Flash supports full CANopen/DeviceNet protocol stacks (לעומתPIC18F448-E/L)
הערות תכנון
The PIC18F458-E/L requires an external ISO 11898 CAN transceiver such as the MCP2551 - the on-chip CAN 2.0B controller only handles protocol logic, not the differential bus drive. Forgetting the transceiver results in no CAN bus activity even though the internal module is configured correctly. The CANTX (RB2) and CANRX (RB3) pins must also be configured for alternate-function mode via the TRISB and LATB registers before enabling the CAN module.
Place the MCP2551 transceiver and bus termination resistors (120 ohm at each cable end, NOT at every node) close to the PIC18F458-E/L's RB2/RB3 pins to minimize stub length on the CAN bus. Keep the 5V analog (AVdd/AVss) and digital (Vdd/Vss) rails decoupled separately with 100nF ceramic capacitors at each MCU power pin. PLCC-44 sockets should have a 100nF bypass cap on each Vdd/Vss pair adjacent to the socket.
The ICSP pins (RB6/PGC, RB7/PGD) used for in-circuit programming and debugging must remain accessible in the PCB layout - do not place these pins in a position that cannot be reached by the PICKit 5 probe clip. According to Microchip ICD 5 documentation, leave at least 3 mm clearance around the ICSP header footprint for the programming connector.
At maximum CPU activity (40 MHz CPU, all peripherals enabled, CAN bus traffic), the PIC18F458-E/L draws approximately 25 mA from Vdd at 5V. Power dissipation is therefore about 125 mW, well within PLCC-44 thermal limits (theta_JA approximately 45 C/W). For continuous full-load operation in -40C to +125C ambient, no additional heatsinking is required, but verify junction temperature under worst-case conditions using Microchip's thermal management application note AN1025.
מידע על תאימות
RoHS and REACH status not explicitly stated in verified distributor data - the part is described as PLCC-44 with lead-bearing J-leads historically; newer production runs are likely RoHS-compliant. AEC-Q100 not directly applicable - this is an industrial/automotive-grade MCU but not formally AEC-Q100 qualified.
