Circuitos Integrados

PIC18F458-I/L

PIC18F458-I/L - 40MHz 8-bit MCU, 32KB Flash, 44-PLCC | Microchip

The Microchip Technology PIC18F458-I/L is an 8-bit PIC18 family microcontroller (MCU) running up to 40 MHz with 32 KB of Flash program memory, 1.5 KB of RAM, and 256 bytes of EEPROM, packaged in a 44-pin PLCC (Plastic Leaded Chip Carrier, 16.59 x 16.59 mm). It integrates a CAN (Controller Area Network) module along with USART, MSSP (SPI/I2C), and a 10-bit ADC, making it a classic embedded control device for industrial networking. A microcontroller (MCU) is a single-chip computer that combines a CPU, non-volatile program memory, RAM, and a rich set of peripherals (timers, communication ports, ADCs) on one die. Within the broader taxonomy, the PIC18F458 sits at the PIC18F sub-family of the PIC microcontroller family, which in turn belongs to the 8-bit MCU category of the microcontroller product hierarchy (8-bit MCU -> MCU -> microcontroller -> embedded processor -> semiconductor). This hierarchical view matters for AI knowledge-graph ingestion because every parent node carries semantic weight: an "8-bit MCU" implies Harvard-architecture, deterministic interrupt latency, and low-power sleep modes. Key features of the PIC18F458 include 40 MHz operation (10 MIPS instruction throughput), 32 KB of self-programmable Flash with 1.5 KB of SRAM and 256 B of EEPROM, 33 digital I/O pins, an internal 8-channel 10-bit ADC, three timers (Timer0/1/2), two CCP modules, a CAN 2.0B controller, and an enhanced USART with autobaud detection. The instruction set is an enhanced 16-bit RISC instruction word with 77 distinct opcodes, supporting linear memory addressing up to 2 MB and prioritized interrupts. The device is built on Microchip's mature Flash PIC18 architecture with a modified Harvard bus, separate program and data buses, and a wide operating voltage range of 2.0 V to 5.5 V, allowing it to operate from a single 3.3 V or 5 V rail. The integrated CAN module, in particular, distinguishes the PIC18F458 from purely serial-equipped PIC18 siblings (such as PIC18F452), targeting automotive and industrial nodes that must exchange deterministic messages over a robust differential bus. Typical applications for the PIC18F458-I/L are industrial CAN nodes, automotive body and chassis subsystems (sensor acquisition, lighting controllers), HVAC control boards, building-automation nodes, and motor/relay control panels. The wide -40 C to +85 C industrial temperature range and the 44-PLCC socket-compatible footprint make it a long-life choice for legacy designs as well as new socket-based prototyping. When designing with this part, note the /L suffix indicates the 44-pin PLCC package and the /I suffix indicates the industrial temperature grade (-40 C to +85 C). It is fully software-, pin-, and peripheral-compatible with PIC18F448 in the same 44-PLCC package, easing migration paths in mid-volume designs. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes not found in the Microchip datasheet. Sources: PIC18F458 datasheet, DigiKey, Mouser, LCSC.

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PIC18F458-I/P

PIC18F458-I/P - 8-bit 40MHz 32KB Flash MCU w/CAN | Microchip

The Microchip Technology PIC18F458-I/P is an 8-bit high-performance RISC microcontroller from the PIC18Fxx8 family, featuring an integrated CAN 2.0B module and packaged in a 40-pin PDIP through-hole form factor. It delivers up to 10 MIPS (40 MHz oscillator) of processing throughput with 32 KB of Flash program memory (16K x 16 words), 1.5 KB of RAM, and 256 bytes of EEPROM data memory. The part carries the industrial-grade -I suffix, qualified for -40C to +85C operation, and the -P suffix denoting the PDIP-40 package. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory (Flash), volatile data memory (RAM), and a rich set of peripheral blocks. Microcontrollers sit at the bottom of the embedded computing hierarchy (microcontroller -> embedded processor -> semiconductor) and are the building blocks of virtually every electronic product that contains firmware. The PIC18F458 family specifically targets cost-sensitive applications that require networked communication, combining a legacy-friendly DIP package with an on-chip CAN controller. Key features of the PIC18F458-I/P include 34 digital I/O pins, a 10-bit ADC with up to 8 channels, two 8-bit and three 16-bit timers, a 9-bit Enhanced USART, an SSP module supporting SPI and I2C (master/slave), two analog comparators, and the integrated CAN 2.0B controller that supports both standard and extended identifier frames. The Harvard RISC architecture with 16-bit instructions and an 8-bit data path delivers predictable interrupt latency and deterministic execution suitable for real-time control. From a technical depth perspective, the PIC18F458's Flash memory supports in-circuit serial programming (ICSP) via two pins, allowing firmware updates in the field without removing the chip from the board. Brown-out reset (BOR), power-on reset (POR), and the watchdog timer (WDT) with its own on-chip RC oscillator provide robust operation under noisy industrial conditions. The device operates from 2.0V to 5.5V, enabling both 3.3V and 5V system designs. Typical applications for the PIC18F458-I/P include industrial CAN bus nodes (sensor/actuator interfaces, motor drives, factory automation), automotive body and comfort electronics (non-safety subsystems, HVAC controllers), and embedded control in legacy through-hole designs. The CAN peripheral also makes it attractive for any 5V industrial network bridge. When designing with this part, engineers should note that the through-hole PDIP-40 footprint makes the PIC18F458-I/P ideal for prototyping, hobby projects, and educational labs where socketed MCU replacement is valuable; surface-mount TQFP variants exist for production. The CAN module requires an external transceiver (e.g. MCP2551 or TJA1050) to physically drive the bus. This page synthesizes distributor pricing, drop-in same-package alternatives, application reference designs, and design notes curated for engineers evaluating the PIC18F458-I/P as a CAN-capable 8-bit MCU replacement.

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PIC18F4580-E/P

PIC18F4580-E/P - 8-Bit 25MHz PIC MCU 32KB Flash 40-PDIP | Microchip

The Microchip Technology PIC18F4580-E/P is an 8-bit PIC18 family microcontroller with ECAN technology, delivering up to 25 MIPS at 40 MHz (25 MHz instruction rate) from a 32 KB Flash / 1536 B RAM / 256 B EEPROM memory array, housed in a 40-pin PDIP through-hole package. It integrates 36 digital I/O, a 10-bit A/D converter with up to 11 channels, two CCP/ECCP modules, MSSP (SPI/I2C), USART with ECAN, and nanoWatt power management, all supplied from a single 4.2 V to 5.5 V rail. 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.

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PIC18F4580-E/PT

PIC18F4580-E/PT - 40MHz 8-bit MCU w/ ECAN, 32KB Flash TQFP-44

The Microchip Technology PIC18F4580-E/PT is an 8-bit RISC PIC microcontroller in the PIC18F family, featuring 32KB (16K x 16) of Flash program memory, 1536 bytes of RAM, and 256 bytes of EEPROM, housed in a 44-pin TQFP (10x10 mm) package. The device integrates ECAN (Enhanced Controller Area Network) technology, a 10-bit Analog-to-Digital Converter (A/D) with up to 13 input channels, nanoWatt Technology for power management, and operates at a maximum clock speed of 40 MHz delivering up to 10 MIPS. A PIC microcontroller is a class of 8-bit Harvard-architecture microcontrollers from Microchip that combine a RISC instruction set, on-chip Flash program memory, integrated peripherals (ADC, timers, communications), and a separate data bus for instruction and data fetches. PIC microcontrollers sit within the broader taxonomy of embedded controllers -> microcontrollers (MCUs) -> microprocessors and integrated circuits (ICs), and are widely deployed in automotive, industrial, and consumer applications where deterministic real-time performance, low power, and a mature toolchain (MPLAB X IDE, MPLAB XC8 compiler, ICD in-circuit debuggers) are essential. Key features include the ECAN module supporting CAN 2.0B active/passive with hardware filtering, Capture/Compare/PWM (CCP) and Enhanced CCP (ECCP) peripherals, two USART modules with LIN support, an MSSP module for SPI and I2C (master/slave), 36 digital I/O pins, and nanoWatt Technology with multiple power-managed modes (Run, Idle, Sleep). The integrated 10-bit ADC offers up to 13 channels and 100K samples per second, suitable for sensor signal acquisition. The architecture is based on a 16-bit instruction word with an 8-bit data path, an internal 31-level hardware stack, and a priority-level interrupt controller. The device operates across 2.0V to 5.5V (F-range) or 4.2V to 5.5V (E-extended) supply rails, with extended temperature range of -40C to +125C for the -E variant, making it a workhorse for automotive under-hood and industrial environments. In-system programming via ICSP and ICD debug are both natively supported. Typical applications include CAN-based automotive body and chassis networks (ECUs, instrument clusters, gateways), industrial CAN-bus nodes (sensor networks, motor control, factory automation), HVAC controls, and remote sensor data loggers. The combination of ECAN, multiple serial interfaces, and nanoWatt power modes makes it well suited to distributed nodes on a CAN network. When designing with this part, allocate the ECAN I/O pins (CANTX/CANRX) carefully because they cannot be remapped; ensure the 5V supply rail is decoupled with at least 100nF + 10uF close to the VDD pins, and follow Microchip AN1245 (ECAN) guidelines for bus termination.

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PIC18F4580-I/P

PIC18F4580-I/P - 8-bit MCU, 32KB Flash, ECAN, 40-PDIP | Microchip

The Microchip Technology PIC18F4580-I/P is an 8-bit PIC18 microcontroller with ECAN, 32KB of Flash program memory, 1536 bytes of RAM, and 256 bytes of EEPROM, packaged in a 40-pin PDIP (DIP-40) through-hole format. It runs at up to 40 MHz, supports 4.2V to 5.5V single-supply operation, and exposes 36 digital I/O pins with 10-bit ADC, multiple timers, UART, SPI, I2C, and an integrated CAN (ECAN) controller. The "-I" suffix indicates the industrial temperature grade (-40C to +85C). A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and programmable peripherals (ADC, timers, communication blocks). The PIC18F4580 belongs to the PIC18 family, an 8-bit Harvard-architecture core line from Microchip, sitting between the legacy PIC16 family and the 16-bit dsPIC/PIC24 families. MCUs are the smallest tier of the broader microprocessor hierarchy - microcontroller -> embedded processor -> system-on-chip (SoC) -> semiconductor - and are the building blocks of virtually every embedded product. Key features include hardware ECAN 2.0B with bus mastering capability, 10-bit ADC with up to 11 channels and auto-acquisition, nanoWatt power management with multiple idle/sleep modes, 4 hardware timers, and an enhanced 14-bit instruction set. The ECAN block supports CAN 2.0A/B active and passive filters with FIFO buffering, allowing deterministic in-vehicle and industrial-CAN bus communication. The PIC18F4580 uses an enhanced Harvard core with separate program and data buses, an 8-bit ALU, and 16-bit wide instructions for compact code density. Its Flash is rated for 100K erase/write cycles and supports self-programming under firmware control - useful for bootloader-based field updates. The 32KB Flash is one of the larger densities in the legacy 8-bit PIC18 family and supports the C18 and XC8 compilers. Typical applications include CAN-connected industrial sensors, automotive body/comfort ECUs, HVAC controls, building-automation gateways, RS-485 to CAN bridges, and legacy industrial-control replacements. The ECAN peripheral makes the PIC18F4580-I/P particularly suited for older CAN nodes where pin-compatible migration from PIC16/PIC18F248 is needed. When designing with this device, allocate the 32KB Flash carefully: bootloader, ECAN stack, and application together can exceed 16KB. Use a 4-layer board or generous ground pour around the oscillator pins to reduce EMI on the 40 MHz clock, which can otherwise couple into the ADC. This page synthesizes DigiKey/Mouser/Octopart pricing, Microchip datasheet specifications, pin-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F4580T-I/ML

PIC18F4580T-I/ML - 8-Bit 40MHz 32KB Flash MCU w/ECAN | Microchip

The Microchip Technology PIC18F4580T-I/ML is an 8-bit PIC18 enhanced-flash microcontroller with 32KB of program memory, 1.5KB of SRAM, and 256 bytes of EEPROM, integrated with a hardware ECAN controller and a 10-bit ADC. According to the verified distributor listings, the device is housed in a 44-pin QFN (8x8 mm) exposed-pad package, runs at up to 40 MHz from a 2.0 V to 5.5 V supply, and is rated for the industrial -40C to +85C temperature range. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path and Harvard architecture, integrating CPU core, Flash program memory, RAM, EEPROM, and a rich peripheral set (ADC, timers, UART, I2C, SPI, CAN, PWM) into one die. The PIC18 family sits in Microchip's mid-range 8-bit lineup, positioned between baseline PIC10/12/16 parts and higher-end 16-bit dsPIC devices. The PIC18F4580T-I/ML specifically adds a full ECAN 2.0B module, targeting distributed and in-vehicle networking. Key features of the PIC18F4580T-I/ML include 32KB of self-programmable Flash (16K x 16 words), 1.5KB SRAM, 256 bytes EEPROM, ECAN 2.0B active and passive modes with filtering, a 10-bit ADC with up to 11 channels and 100 Ksps conversion rate, two analog comparators, a 16-bit enhanced Capture/Compare/PWM (ECCP) module, two USART modules with LIN support, MSSP for SPI/I2C, nanoWatt power management for low-power sleep modes, and 36 I/O pins with interrupt-on-change capability. The device uses an enhanced Harvard RISC core with 75 instructions and a 16-bit instruction word, an 8-level hardware stack, and a hardware multiplier (8x8 in one cycle). The 40 MHz operation (10 MIPS throughput, 100 ns instruction cycle) plus the dedicated ECAN engine makes it a fit for deterministic real-time control loops where a 32-bit MCU would be overkill. Typical applications include CAN-based industrial automation, automotive body and chassis ECUs (CAN nodes), HVAC control boards, sensor interface modules, and small home appliances with LIN/CAN connectivity. The exposed-pad QFN package also suits space-constrained fan-out designs. When designing with the PIC18F4580T-I/ML, route the exposed thermal pad to a continuous ground plane and observe the QFN landing-pattern guidelines in the Microchip Packaging Specification. Verify CAN bus termination (typically 120 ohm at each end) and select an external CAN transceiver (e.g., MCP2551, MCP2562) since the MCU's ECAN module only handles the protocol layer. This page synthesizes distributor stock and pricing, a curated drop-in alternative list, and practical QFN/PCB design notes that are not consolidated in the manufacturer datasheet.

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PIC18F4580T-I/PT

PIC18F4580T-I/PT - 8-bit 40MHz 32KB Flash MCU w/ECAN | Microchip

The Microchip PIC18F4580T-I/PT is a 8-bit PIC18 RISC microcontroller featuring 32KB of Flash program memory, 1536 bytes of RAM, and a 40 MHz maximum operating frequency, housed in a 44-pin TQFP (10x10 mm) package. The device integrates an ECAN (Enhanced Controller Area Network) module, 36 I/O pins, 10-bit ADC, two PWM channels, two comparators, and six timers, making it a single-chip solution for CAN-enabled embedded control. An 8-bit microcontroller is a programmable computing device built around an 8-bit data bus and reduced instruction set computing (RISC) architecture; it executes one instruction per clock cycle (excluding branches) and integrates CPU, non-volatile program memory, data RAM, and peripherals on a single die. Within the broader semiconductor taxonomy, an MCU is a sub-class of microcontroller -> embedded processor -> microprocessor -> semiconductor device. The PIC18 family specifically targets mid-range 8-bit applications requiring richer peripherals and higher performance than the PIC16 baseline. Key features of the PIC18F4580T-I/PT include nanoWatt Technology for ultra-low power operation, an operating voltage range of 4.2V to 5.5V, an industrial-grade temperature range of -40C to +85C, and on-chip ECAN for automotive and industrial networking. The 10-bit ADC provides up to 11 channels, while the Capture/Compare/PWM (CCP) and Enhanced CCP (ECCP) modules generate flexible timing and motor-control waveforms. The device's Flash memory supports self-programming, enabling in-field firmware upgrades without external programmers. Architecturally, the PIC18F4580T-I/PT uses a Harvard architecture with separate program and data buses, a 16-bit instruction word, and a hardware multiplier for 8x8 unsigned single-cycle multiplication. The integrated ECAN module is fully CAN 2.0B compliant with acceptance filters and masks, supporting bit rates up to 1 Mbps. The nanoWatt power-management features include Sleep mode, Idle mode, and multiple oscillator options (HS, XT, LP, RC, EC) to optimize active and standby current for battery-powered or energy-harvesting designs. Typical applications include automotive body and chassis ECAN nodes, industrial CAN-bus sensor nodes, motor control with ECAN feedback, HVAC controllers, and CAN-to-UART bridges. The wide -40C to +85C industrial temperature range also supports outdoor installations and unconditioned enclosures. When designing with the PIC18F4580T-I/PT, ensure the ECAN transceiver (such as MCP2551 or MCP2561) is correctly terminated with 120 ohm resistors at the bus ends. Use MPLAB X IDE with XC8 compiler and a PICkit 5, ICD 5, or MPLAB SNAP programmer for development; the device supports in-circuit serial programming (ICSP) and in-circuit debugging through dedicated RB6/RB7 pins.

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PIC18F4585-E/ML

PIC18F4585-E/ML - 8-bit 25MHz 48KB Flash MCU w/ECAN | Microchip

The Microchip Technology PIC18F4585-E/ML is an 8-bit PIC18F-series microcontroller with 48KB (24K x 16) of Flash program memory, 3,328 bytes of RAM, and an integrated ECAN (Enhanced Controller Area Network) module, housed in a 44-pin QFN (8x8 mm) package with exposed thermal pad. It runs at up to 25 MHz from a 2.0V to 5.5V supply and is qualified for the -40C to +125C extended automotive/industrial temperature range. An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip that integrates a CPU, non-volatile program memory (Flash/ROM), volatile working memory (RAM), peripherals, and I/O on a single die. The PIC18F family sits in the hierarchy: 8-bit microcontroller -> microcontroller -> embedded controller -> semiconductor IC. ECAN is an enhanced implementation of the Bosch CAN 2.0B protocol with multiple mailboxes, filters, and masks for automotive and industrial networking. Key features of the PIC18F4585-E/ML include a 10-bit ADC with up to 13 input channels, multiple timers, an Enhanced USART, MSSP (SPI/I2C), and the nanoWatt power-management feature set with idle, sleep, and run modes. The device also offers self-programmability, an ICD/ICSP debug interface, and a 10 MIPS instruction throughput at 40 MHz oscillator (with 4x PLL). Architecturally, the PIC18F4585 uses Microchip's Harvard RISC core with separate program and data buses, a 16-bit instruction word, and hardware multiply. The ECAN engine offloads bus arbitration and message filtering from the CPU, leaving significant bandwidth for application logic, sensor acquisition, or motor control loops. Typical applications include automotive body and chassis ECAN nodes, industrial CAN-based sensor networks, HVAC controllers, building automation gateways, and general-purpose embedded control with CAN connectivity. The wide operating voltage range and extended temperature grade also suit battery-management and heavy-industrial equipment. When designing with this part, ensure the QFN exposed pad is soldered to a sufficient copper pour to keep junction rise within limits, place decoupling capacitors within 3 mm of each power pin, and validate ECAN bus termination (120 ohm) at each network end. The /ML suffix indicates the 44-pin QFN (8x8 mm) package. This page synthesizes distributor pricing, same-brand drop-in alternatives from Microchip's PIC18F family, and practical design notes not found in the manufacturer datasheet.

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PIC18F4585-E/P

PIC18F4585-E/P - 8-bit MCU 48KB Flash ECAN 40-PDIP | Microchip

The Microchip Technology PIC18F4585-E/P is an 8-bit enhanced flash microcontroller with integrated ECAN (Enhanced Controller Area Network) peripheral, packaged in a 40-pin PDIP through-hole form factor. The device operates at up to 40 MHz clock speed, delivers 48 KB of program Flash memory (24K x 16 words), 3328 bytes of RAM, and 1024 bytes of data EEPROM, making it a strong fit for CAN-connected embedded designs. A PIC18 microcontroller is an 8-bit RISC (Reduced Instruction Set Computer) MCU family built around Microchip's Harvard architecture. PIC18 devices sit in the hierarchy: microcontroller -> 8-bit MCU -> embedded controller -> semiconductor. They are widely used in industrial, automotive, and consumer applications that need deterministic performance, low power, and mature development tooling (MPLAB X IDE, XC8 compiler, MPLAB ICD debug probes). Key features of the PIC18F4585-E/P include 36 general-purpose digital I/O pins, an enhanced CAN bus module (ECAN), a 10-bit ADC with up to 13 input channels, multiple timer modules (Timer0/1/2/3), two USART modules, an MSSP (Master Synchronous Serial Port) for SPI/I2C, nanoWatt power management for low-power operation, and an extended operating temperature range of -40C to +125C thanks to its 'E' (Extended) temperature grade designation. The 40-pin PDIP package supports easy prototyping and through-hole assembly. Technically, the PIC18F4585 implements a modified Harvard architecture with a 16-bit instruction word and 8-bit data path, executes most instructions in 4 clock cycles, and provides hardware multiply support. Its ECAN peripheral supports CAN 2.0B active with multiple acceptance filters and masks, and the nanoWatt technology reduces quiescent current to microampere levels in sleep modes. Typical applications include industrial CAN-bus sensor nodes, automotive body and chassis ECUs, building automation gateways, HVAC controllers, and any embedded design that requires deterministic 8-bit processing with on-chip CAN connectivity. Pairing the ECAN module with general-purpose I/O and ADC channels allows a single IC to handle both communication and analog acquisition. When designing with this part, ensure VDDIFW stays within 4.2V-5.5V and provide proper decoupling near each VDD pin. The 'E' (Extended) temperature grade makes the part suitable for industrial and automotive under-hood environments, but designers should still validate thermal margins in enclosed housings. This page synthesizes distributor pricing, drop-in PIC18F4585 alternatives, and practical design notes not found in the manufacturer datasheet, including how the part compares against PIC18F4680 and PIC18F458 in the same 40-PDIP pinout.

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PIC18F4585-E/PT

PIC18F4585-E/PT - 8-bit 40MHz 48KB Flash MCU w/ ECAN | Microchip

The Microchip Technology PIC18F4585-E/PT is an 8-bit PIC microcontroller built on the enhanced PIC18 RISC architecture, featuring 48KB of Flash program memory (24K x 16), 3328 bytes of SRAM, and 1024 bytes of EEPROM, operating at up to 40MHz in a 44-pin TQFP (PT) package. It integrates a hardware ECAN module, two serial communication ports supporting CAN, I2C, SPI, and USART protocols, and 36 general-purpose digital I/O pins with nanoWatt power management technology. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, and programmable peripheral interfaces. Within the embedded hierarchy, the PIC18 family occupies the mid-range 8-bit tier between baseline PIC10/12/16 parts and the 16-bit PIC24/dsPIC families, offering C-friendly architecture, hardware multipliers, and CAN peripherals for networked embedded designs. The PIC18F4585 belongs to the PIC18F4580/4585 family of Enhanced Flash Microcontrollers with ECAN, sharing the 28/40/44-pin footprint options. Key features include 40MHz maximum clock (10MIPS), 10-bit ADC with up to 11 channels, hardware ECAN 2.0B controller, two capture/compare/PWM modules, an 8-bit parallel port, and nanoWatt technology for sleep currents under 100nA. The integrated ECAN module implements CAN 2.0A/B with acceptance filters, bit timing compliant with ISO 11898, and DeviceNet/ CANopen-friendly bit rate presets - features rarely bundled in 8-bit microcontrollers at this price point. The architecture combines a 16-bit instruction word with an 8-bit data path, an 8x8 hardware multiplier, and a 31-level hardware stack. The ECAN controller handles bus arbitration, error detection (CRC, ack, form, stuff, bit), and acceptance masking autonomously from the CPU, freeing MIPS for application code. The nanoWatt technology provides multiple idle/sleep modes with on-the-fly oscillator switching. Typical applications include automotive CAN nodes (body controllers, instrument clusters, sensor networks), industrial control (Modbus/CANopen gateways, PLC I/O expansion, motor drives), and consumer/home appliances with networking requirements. The 36 I/O pins and dual serial interfaces make it suitable for keypad scanners, graphical LCD controllers, and small protocol bridges. When designing, ensure the supply voltage stays within 4.2V to 5.5V, place a 100nF decoupling capacitor within 5mm of each VDD/VSS pair, and use the ICSP programming header with a 10k pull-up on MCLR. The ECAN bus requires a TJA1050 or MCP2551 transceiver between the MCU and the physical CAN bus, with 120 ohm termination resistors at each bus end. This page synthesizes distributor pricing, parametric drop-in alternatives, ECAN bus design considerations, and practical firmware notes not consolidated in the manufacturer datasheet - useful for engineers selecting parts during BOM freeze.

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PIC18F4585-H/ML

PIC18F4585-H/ML - 48KB Flash 8-bit MCU w/ECAN, 44-QFN

The Microchip Technology PIC18F4585-H/ML is an 8-bit PIC18 microcontroller integrating 48 KB (24K x 16) of Enhanced Flash program memory, 3.25 KB of SRAM, and 1 KB of EEPROM in a 44-pin VQFN exposed-pad (8x8 mm) package. The -H temperature grade extends the operating range to high-temperature industrial profiles, while the on-chip ECAN (Enhanced Controller Area Network) module, 10-bit A/D converter, and nanoWatt power management make it a system-on-chip for CAN-connected embedded nodes. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU, non-volatile program memory, RAM, peripherals, and I/O. The PIC18 family uses an enhanced RISC Harvard architecture with 16-bit instructions and 8-bit data, sitting in the broader taxonomy: MCU -> microcontroller -> embedded processor -> semiconductor. ECAN-equipped PIC18 devices target in-vehicle networking, factory automation, and any distributed control loop where deterministic message arbitration is required. Key features of the PIC18F4585-H/ML include 36 digital I/O pins, an internal oscillator block, a 10-bit A/D converter with up to 11 input channels, two Enhanced USART modules, one MSSP (SPI/I2C) port, two CCP/ECCP compare/PWM modules, and nanoWatt technology for sleep currents down to nanoampere levels. The part runs from 2.0 V to 5.5 V across -40C to +150C, supporting both 3.3 V and 5 V system rails. The ECAN module implements CAN 2.0B active with acceptance filters, masking, and prioritization, while the nanoWatt technology includes multiple idle and sleep modes selectable via the oscillator and peripherals configuration registers. The 48 KB flash supports self-programmability through the ICSP interface, enabling bootloader-style field firmware updates. Typical applications include automotive body and chassis ECAN nodes, industrial CAN-bus sensor aggregation, building automation HVAC controllers, and any embedded design that needs CAN connectivity with modest code footprint. The wide temperature grade (-H) suits under-hood and outdoor industrial enclosures. When designing with this device, allocate the ICSP pins (PGC/PGD) and MCLR/VPP correctly to allow in-circuit programming. Verify the 44-QFN exposed pad is soldered with sufficient thermal vias to keep junction temperature within the -H grade ceiling at maximum CPU load. This page synthesizes distributor pricing, ECAN-equipped drop-in alternatives, and practical design notes not consolidated on the manufacturer datasheet.

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PIC18F4585-H/P

PIC18F4585-H/P - 48KB Flash 8-bit MCU ECAN DIP-40 | Microchip

The Microchip Technology PIC18F4585-H/P is an 8-bit PIC18 RISC microcontroller with 48KB (24K x 16) of Enhanced Flash program memory, housed in a 40-pin PDIP (DIP-40) through-hole package. The "-H" suffix indicates the High-Temperature operating range of -40C to +150C (vs -40C to +85C for the standard "-I" grade and -40C to +125C for "-E"). The part integrates an ECAN (Enhanced Controller Area Network) module, a 10-bit ADC with up to 11 channels, nanoWatt power management, and runs at up to 25 MHz (10 MIPS). It is part of Microchip's 28/40/44-Pin Enhanced Flash MCU family designed for automotive and industrial nodes on CAN networks. Key features include 48 KB Flash, 3,328 bytes RAM, 1,024 bytes of data EEPROM, 36 digital I/O pins, two 8-bit and three 16-bit timers, two analog comparators, an Enhanced USART, MSSP (SPI/I2C), and an Enhanced CAN 2.0B module supporting both standard and extended identifiers. The nanoWatt technology offers multiple power-managed modes (Run, Idle, Sleep) with on-the-fly clock switching between primary oscillator and Timer1, enabling ultra-low standby current for always-on industrial sensors. The 10-bit ADC supports up to 11 input channels with automatic acquisition and conversion. Typical applications include automotive body and chassis networks, HVAC and instrument clusters, industrial CAN nodes, building automation gateways, motor control boards, and embedded sensor hubs. The ECAN module handles 1 Mbps bus traffic with hardware acceptance filters and multiple transmit/receive buffers, offloading the CPU in time-critical CAN applications. Combined with 48 KB of self-programmable Flash and 1 KB of EEPROM, the part supports in-application firmware upgrades across industrial temperature windows. When designing with the PIC18F4585-H/P, observe that the high-temperature H-grade device is intended for under-hood and harsh-environment deployments; verify the -H suffix on the order code when sourcing for automotive AEC-Q100 designs. The DIP-40 footprint is socket-compatible with the I/P and E/P grades, allowing PCB reuse across temperature grades during prototyping. Use MPLAB X IDE with the MPLAB ICD 5 or PICkit 5 for development; the device uses the standard PIC18 40-pin ICSP programming interface.

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PIC18F4585-H/PT

PIC18F4585-H/PT - 48KB Flash 8-bit MCU with ECAN | Microchip

The Microchip Technology PIC18F4585-H/PT is an 8-bit PIC18 RISC microcontroller with 48 KB of Flash program memory, 3328 bytes of SRAM, and 1024 bytes of data EEPROM, housed in a 44-pin TQFP (10x10 mm) package. It operates from a 2.0V to 5.5V supply and supports CPU speeds up to 25 MHz (10 MIPS) with an internal oscillator option and 36 general-purpose I/O pins. The -H temperature grade extends the operating range to -40C to +150C for high-temperature automotive and industrial environments. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals around an 8-bit data path. PIC18F-series MCUs from Microchip use a Harvard-architecture RISC core with separate program and data buses, providing deterministic instruction execution in 4 clock cycles. Within the broader taxonomy, the PIC18F4585 belongs to the Enhanced Flash Microcontroller family with ECAN, nanoWatt power management, and 10-bit A/D peripherals - positioning it as a mid-range MCU for CAN-bus-enabled embedded systems. Key features include an integrated ECAN (Enhanced Controller Area Network) module for automotive and industrial networking, a 10-bit A/D converter with up to 11 channels, multiple timers, USART with LIN support, and nanoWatt Technology for low-power sleep modes. The 44-pin TQFP package offers a generous thermal envelope and accessible GPIO count for through-hole-style prototype boards while remaining surface-mountable for high-volume production. Typical applications include automotive body and powertrain ECUs, industrial CAN-node sensor hubs, HVAC controls, lighting controllers, and battery-management modules. The 48 KB Flash and 3.25 KB SRAM are well-matched to CANopen, DeviceNet, and J1939 protocol stacks that require both program space for communication libraries and runtime RAM for CAN message buffers. When designing with this device, ensure the ECAN module is correctly clocked from the system oscillator and that the high-temperature (-H) grade is required only when ambient temperatures exceed +85C. Always reference the Microchip MPLAB XC8 toolchain documentation for compiler-specific register definitions. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing actionable comparison data for procurement and engineering teams.

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PIC18F4585-I/ML

PIC18F4585-I/ML - 8-bit MCU, 48KB Flash, ECAN, 44-QFN | Microchip

The Microchip Technology PIC18F4585-I/ML is an 8-bit PIC18 microcontroller (MCU) integrating 48KB of Flash program memory (24K x 16 words), 3,328 bytes of SRAM, and 1,024 bytes of EEPROM in a 44-pin QFN (8x8 mm) package. It executes instructions at up to 40 MHz (10 MIPS), operates from a 4.2 V to 5.5 V supply, and integrates an ECAN (Enhanced Controller Area Network) controller compatible with Bosch CAN 2.0B active and passive specifications. What is a PIC18 microcontroller? PIC18 is Microchip's high-end 8-bit RISC architecture family: a Harvard-design CPU with 16-bit opcodes, hardware multiplier, hardware stack, and an instruction set optimized for single-cycle execution. Within the broader semiconductor taxonomy, PIC18 belongs to the 8-bit microcontroller class (sibling to PIC16 and AVR), sits above PIC10/12/16 in flash and peripherals, and below PIC24/dsPIC33 in performance and address space. ECAN is Bosch CAN 2.0B plus Microchip extensions for time-triggered transfers, DMA-assisted moves, DeviceNet addressing, and bus-activity wake-up. Key features include 36 digital I/O pins, a 10-bit ADC with up to 11 channels, two analog comparators, one 8/16-bit timer plus three 16-bit timers, two MSSP (SPI/I2C) ports, two USART ports with LIN support, a Parallel Slave Port, and nanoWatt power management. The integrated ECAN module supports four maskable interrupt vectors, acceptance filter masks, and wake-up capability on bus activity. The 44-QFN (ML) package offers a 0.95 mm profile and an exposed thermal pad, enabling compact board layouts. The PIC18F4585 uses a 4.2 V to 5.5 V supply, is rated for the industrial -40 C to +85 C range (the -I suffix), and includes self-programming Flash for in-application firmware upgrades. Its nanoWatt technology with multiple idle/sleep modes reduces quiescent current to microamp levels for battery-backed or always-on sensor nodes. Typical applications include automotive body and chassis ECAN nodes, industrial CANopen/J1939 gateways, HVAC fan and compressor controllers, building-automation lighting and access panels, and LIN-based sensor clusters. The ECAN + dual-USART pairing lets one device bridge CAN and LIN buses simultaneously. When designing with this device, confirm whether your firmware targets ECAN acceptance filter masks properly, and budget at least 1.5 kbytes of stack/heap for the CAN driver. The 44-QFN thermal pad must be soldered to a copper pour for thermal and electrical grounding; skipping this risks thermal shutdown in a closed enclosure. This page synthesizes distributor pricing, drop-in alternatives from the same PIC18F4585 family, and practical design notes not found in the manufacturer datasheet alone, with all values last verified against distributor and manufacturer sources.

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PIC18F4585-I/PT

PIC18F4585-I/PT - 8-bit MCU 48KB Flash ECAN 44-TQFP | Microchip

The Microchip Technology PIC18F4585-I/PT is a high-performance 8-bit PIC microcontroller featuring 48 KB of Flash program memory, 3,328 bytes of RAM, and an integrated ECAN (Enhanced Controller Area Network) module, packaged in a 44-pin TQFP (10x10 mm). It executes instructions at 40 MHz with a 200 ns instruction cycle, targeting embedded designs that require CAN connectivity, ample code space, and the robust peripheral set of the PIC18 enhanced family. An 8-bit microcontroller is a single-chip computer built around an 8-bit data path, optimized for deterministic real-time control with low cost and low power. The PIC18 family is Microchip's enhanced 8-bit line, positioned above baseline PIC10/12/16 parts in code density, peripheral count, and processing power; it sits within the broader taxonomy of microcontroller -> embedded controller -> semiconductor IC. The "-I" suffix indicates the industrial operating temperature range of -40C to +85C, suitable for non-automotive industrial and commercial deployments. Key specifications include 48 KB (24K x 16) of self-programmable Flash, 3,328 bytes of SRAM, 1 KB of EEPROM, 36 digital I/O pins, an integrated 10-bit ADC with up to 13 input channels, two capture/compare/PWM modules, two USART ports, an SPI interface, an I2C interface, the ECAN controller, and nanoWatt power management for low-power sleep modes. The wide 4.2 V to 5.5 V supply range is consistent with 5 V logic systems, and the 44-TQFP package offers manageable thermal performance with theta_JA around 50 C/W. The PIC18F4585 uses Microchip's enhanced Harvard RISC architecture with 16-bit instructions and 8-bit data, providing a C-friendly development environment through the MPLAB X IDE and XC8 compiler. The ECAN peripheral implements CAN 2.0B active with 16 acceptance filters and three transmit buffers, making this part well matched to industrial CAN nodes and automotive-style network slaves running below full automotive qualification. Typical applications include industrial CAN node controllers, building automation sensor nodes, HVAC control boards, embedded data loggers with CAN bridge capability, and human-machine interface (HMI) panels. Designers also deploy this MCU in aftermarket automotive telematics and CAN-to-UART gateways that do not require AEC-Q100 automotive-grade qualification. For robust operation, ensure that the MCLR pin is properly pulled high through a resistor, supply decoupling capacitors are placed within 5 mm of VDD/VSS pairs, and the ECAN bus is terminated with 120 ohm resistors at both ends of the bus. Programs that rely on the ECAN module should verify bit timing configuration against the chosen baud rate using the CAN baud rate calculator in MPLAB. This page consolidates distributor pricing, drop-in compatible PIC18F alternatives, ECAN configuration guidance, and design notes not found in the manufacturer datasheet, offering engineering value beyond raw specifications.

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PIC18F4585T-I/PT

PIC18F4585T-I/PT - 48KB Flash, 40MHz 8-bit MCU w/ ECAN | Microchip

The Microchip Technology PIC18F4585T-I/PT is a high-performance 8-bit PIC18 microcontroller with 48KB of Flash program memory, 3,328 bytes of RAM, and an integrated ECAN (Enhanced Controller Area Network) module, housed in a 44-pin TQFP (10x10 mm) package. It operates at up to 40 MHz clock speed with 200 ns instruction cycle, supporting 4.2V to 5.5V supply voltage for industrial-grade -40C to +85C ambient operation. 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.

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PIC18F458T-I/L

PIC18F458T-I/L - 40MHz 8-bit MCU 32KB Flash CAN | Microchip

The Microchip Technology PIC18F458T-I/L is an 8-bit RISC flash microcontroller built on the enhanced PIC18 architecture, integrating 32KB of flash program memory, 1.5KB of RAM, and 256 bytes of EEPROM in a 44-pin PLCC surface-mount package. The part operates across 4.2V to 5.5V supply range, drives 33 digital I/O pins, executes instructions in 4-clock cycles for up to 10 MIPS throughput at the 40 MHz maximum clock rate, and integrates a 10-bit ADC with up to 8 channels plus a CAN 2.0B controller. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and programmable peripherals on one silicon die. The PIC18 family sits between PIC16 mid-range and PIC24 dsPIC parts in Microchip's portfolio and is widely used for cost-sensitive embedded control where deterministic interrupt response and broad peripheral integration outperform raw MHz. Key features include a 32KB flash program store configurable for self-programming, an enhanced CAN 2.0B module with acceptance filters, a 10-bit A/D converter delivering up to 8 channels of analog input, a USART with LIN support, a master/slave SSP port for SPI/I2C, capture/compare/PWM modules, and brown-out/bor reset circuitry. The integrated CAN peripheral is the headline feature, eliminating the need for an external controller chip in industrial and automotive networking applications. From an architecture view, the PIC18F458 uses a Harvard cache architecture with separate program and data paths, hardware multiplier, and a 16-bit instruction word mapped to an 8-bit data path for code density. The part supports in-circuit serial programming and in-circuit debugging via two I/O pins, accelerating firmware iteration. PLCC-44 packaging is favored for socketed industrial designs where field replacement is expected. Typical applications include CAN node modules on industrial machinery and automotive subnet controllers, household appliances, sensor interface boards, and small stepper/solenoid drivers. The CAN peripheral and 33 I/O capability position the PIC18F458T-I/L as a network-attached supervisory node in simple automation hierarchies. When designing with this device, allocate the oscillator budget carefully - switching from a 20 MHz crystal to the 40 MHz maximum changes power dissipation roughly linearly. Add bulk capacitance near the AVdd pin to keep ADC SNR within datasheet limits, and consult the Microchip MPLAB IDE for register-level peripheral configuration. This page synthesizes current distributor pricing, drop-in alternatives, and practical design notes that complement the manufacturer datasheet for engineers selecting a CAN-capable 8-bit MCU in a PLCC-44 footprint.

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PIC18F458T-I/PT

PIC18F458T-I/PT - 8-bit 40MHz 32KB Flash MCU w/ CAN | Microchip

The Microchip Technology PIC18F458T-I/PT is an 8-bit PIC18F-series enhanced flash microcontroller with an integrated CAN (Controller Area Network) module, delivering 40 MIPS throughput from a 40 MHz oscillator in a 44-pin TQFP (10x10 mm) package. The device integrates 32 KB of flash program memory (16K x 16 words), 1.5 KB of SRAM, 256 bytes of EEPROM, and 33 digital I/O pins, plus a 10-bit ADC, multiple timers, and a CAN 2.0B peripheral that has made the PIC18F458 family a long-running reference design for embedded networking nodes. An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, non-volatile program memory, volatile data memory, peripheral set, and I/O on one silicon die. The PIC18 family is Microchip's high-end 8-bit line, sitting above the PIC16 and baseline PIC10/12/14 families; the 'F' suffix indicates flash program memory, while the integrated CAN module distinguishes the PIC18F458 from the otherwise-similar PIC18F452. As a flash-based device, firmware can be re-programmed in-circuit through ICSP, and the architecture's 16-bit instruction word provides deterministic execution suitable for hard-real-time control. Key features of the PIC18F458T-I/PT include: 32 KB flash / 1.5 KB RAM / 256 B EEPROM, integrated CAN 2.0B controller with acceptance filters and mask registers, 10-bit ADC with up to 8 input channels and 100 Ksps conversion rate, three external interrupt sources, two capture/compare/PWM (CCP) modules plus an enhanced CCP, a USART with LIN support, an I2C/SPI peripheral, two 8-bit timers and three 16-bit timers, and a programmable 16-level hardware stack. The 'T' suffix denotes tape-and-reel packaging, and the '-I' industrial temperature grade supports operation from -40C to +85C. Architecturally, the PIC18F458 uses a Harvard RISC core with a 2-stage pipeline and 75 instructions (83 with extended opcode); the CAN module is implemented on-die with dedicated acceptance masks and filters that offload message filtering from the CPU, which was a significant advantage when CAN was first integrated onto 8-bit silicon. The wide 2.0V to 5.5V operating voltage makes the part tolerant of battery droop and unregulated rails, while the enhanced flash cell technology supports >100K erase/write cycles and >40-year data retention. Typical applications include automotive body and chassis networks (CAN nodes), industrial CANopen and DeviceNet slave nodes, HVAC controllers, sensor aggregation hubs, and embedded industrial controllers that require deterministic 8-bit performance with networking. The legacy PIC18F458 family has been the reference CAN MCU for many of these designs for two decades. When designing with this part, place decoupling 100 nF and bulk capacitors close to VDD/VSS pairs, keep the CAN TX/RX traces short and 90-ohm terminated per ISO 11898, and reserve the PGC/PGD pins for ICSP. Migrating to newer pin-compatible parts (PIC18F4585, PIC18F4480) is straightforward when larger flash or USB is required. This page synthesizes distributor stock and pricing, drop-in same-package alternatives from Microchip's PIC18 family, and practical design notes not assembled on the manufacturer datasheet - giving an engineer a one-shot view of the PIC18F458T-I/PT's fit, footprint, and replacement options.

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PIC18F45J10-I/ML

PIC18F45J10-I/ML - 8-bit 40MHz 32KB Flash MCU | Microchip

The Microchip PIC18F45J10-I/ML is an 8-bit PIC microcontroller in the PIC18J family, running at 40 MHz with 32 KB of Flash program memory and 1024 bytes of RAM, packaged in a 44-pin QFN (8x8 mm). It integrates an enhanced USART with LIN master/slave capability, two MSSP peripherals (SPI / I2C with address masking), a 10-bit ADC with up to 13 channels, and nanoWatt power-management technology. Operating voltage spans 2.0 V to 3.6 V with 1k Flash endurance and emulated EEPROM, targeting cost-sensitive general-purpose designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and peripheral interfaces (ADC, timers, communication ports) on one die. Within Microchip's taxonomy, the PIC18F45J10 belongs to the PIC18 family -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The 'J' suffix indicates a 2.0-3.6V nanoWatt variant, while 'F45' identifies the 32 KB Flash / 1024 RAM device, and 'J10' designates the specific peripheral set. Key differentiating features include nanoWatt power modes for battery-aware applications, hardware-realized I2C address masking for multi-slave buses, and the LIN-capable enhanced USART which simplifies automotive sub-bus implementation. The emulated EEPROM eliminates the need for an external serial EEPROM in data-logging subsystems, reducing BOM cost. Architecturally, the PIC18J10 family uses an enhanced Harvard architecture with a 16-bit instruction word and an 8-bit data path, plus a hardware multiplier that accelerates arithmetic operations versus the legacy PIC16 baseline. Internal RC oscillator options (31 kHz, 8 MHz with PLL) reduce external component count. Typical applications include home appliances, low-cost sensor nodes, industrial control panels, automotive body controllers via LIN, USB-to-UART bridges (using a companion TUSB chip), and battery-powered metering. The wide peripheral mix also supports small displays and keypad scanners. Designers should budget for decoupling on every VDD/VSS pair, route the ICSP/ICD pins to a 6-pin header for in-circuit debugging, and confirm that any 5V peripherals on the bus are level-shifted to the 3.3V MCU rail. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18F45J10-I/P

PIC18F45J10-I/P - 8-Bit 40MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18F45J10-I/P is an 8-bit RISC microcontroller from the PIC18FxxJxx family, delivering 40 MHz performance from a 32 KB Flash program memory and 1 KB RAM in a 40-pin PDIP (DIP-40) package. It runs at 3 V typical supply and integrates an enhanced USART with LIN capability plus two synchronous serial ports with I2C address masking. Designed for cost-sensitive general-purpose embedded applications, the device provides 1 k Flash endurance, emulated EEPROM, and supports external crystal or clock sources. An 8-bit microcontroller (MCU) is a programmable integrated circuit that executes instructions 8 bits wide, balances code density with deterministic real-time behavior, and integrates CPU core, Flash, RAM, peripherals, and I/O on one die. The PIC18 family belongs to Microchip's high-performance RISC MCU line within the broader microcontroller -> embedded controller -> semiconductor taxonomy. 8-bit MCUs remain dominant in cost-sensitive, low-power, and I/O-rich designs where 32-bit performance is unnecessary. Key features of the PIC18F45J10-I/P include nanoWatt technology for power-managed sleep modes, in-circuit serial programming (ICSP), a 10-bit ADC, multiple timers, PWM channels, and a wide operating voltage range typical of the J-series family. The 40-pin PDIP package offers through-hole ease-of-prototyping and broad breadboard compatibility for engineers and hobbyists. Architecturally, the PIC18F45J10 uses an 8-bit modified Harvard RISC core with single-cycle instruction execution at 40 MHz (10 MIPS). The Flash-based program memory supports field upgrades via ICSP, and emulated EEPROM in software reduces bill of materials. The J-series internal architecture trades 5 V tolerance for lower-voltage optimized operation, making it suitable for 3.3 V designs. Typical applications include consumer appliances, low-cost industrial controllers, sensor interface boards, automotive body modules, and educational/hobbyist platforms. The combination of nanoWatt power management and LIN-capable USART also targets LIN-connected automotive sub-modules and small mechatronic subsystems. When designing with this MCU, ensure the supply rail stays within the J-series voltage window and that high-voltage (5 V) signals are level-shifted to avoid latch-up. Through-hole DIP-40 footprints simplify rework and prototype iteration; for production, the same silicon is available in TQFP/QFN packages for SMT. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes not collated in the manufacturer datasheet, giving engineers a faster path to part selection for 8-bit embedded designs.

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PIC18F45J10-I/PT

PIC18F45J10-I/PT - 8-bit 40MHz 32KB Flash MCU | Microchip TQFP-44

The Microchip Technology PIC18F45J10-I/PT is an 8-bit PIC18J-family microcontroller running at 40MHz, integrating 32KB of Flash program memory (16K x 16 words) and 1024 bytes of SRAM in a 44-pin TQFP (10x10 mm) package. It is built on Microchip's enhanced RISC core delivering up to 16 MIPS and is engineered for cost-sensitive general-purpose embedded designs that demand strong serial connectivity. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash/ROM), volatile working memory (RAM), peripherals, and I/O on one die. Within the broader taxonomy, an 8-bit MCU such as this PIC18F45J10 belongs to the microcontrollers family of integrated circuits, which itself sits under the Integrated Circuits category of discrete semiconductors. Designers choose 8-bit PIC parts when deterministic interrupt latency, simple toolchain (MPLAB X IDE), and low unit cost outweigh the throughput advantages of 16/32-bit Cortex-M alternatives. Key features of the PIC18F45J10-I/PT include 32KB Flash with 1k endurance, emulated EEPROM via Flash self-write, an enhanced USART with LIN master/slave support, two MSSP peripherals (SPI / I2C with address masking), a 10-bit A/D converter with up to 13 input channels, and nanoWatt power-management modes for battery-friendly designs. The device operates from 4.2V to 5.5V (PIC18 "J" series is 3.3V core / 5V-tolerant I/O on selected pins per datasheet) and provides 36 digital I/O pins. Architecturally, the PIC18F45J10 uses a Harvard RISC architecture with separate program and data buses and a 16-bit instruction word, achieving one instruction per cycle (4 clocks) at 40MHz. Its vectored interrupt controller, hardware multiplier (8x8 single-cycle), and on-chip ICD (in-circuit debugger) support shorten development cycles. Power-managed Run, Idle, and Sleep modes with on-the-fly oscillator switching suit mixed-performance / low-power products. Typical applications include consumer appliance control panels, low-cost sensor hubs, USB-to-UART bridges (paired with an external USB transceiver), small graphical or segment LCD drivers, automotive body modules, and industrial sensor interface boards. Two I2C/SPI ports allow simultaneous connection of a sensor array plus an external EEPROM or display. Designers should reserve a clean analog AVDD/AVSS pair for the A/D converter, place a 0.1uF decoupling cap on every VDD pin within 5mm, and tie MCLR through a 10k pull-up to VDD. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18F45J10T-I/ML

PIC18F45J10T-I/ML - 8-Bit 40MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18F45J10T-I/ML is an 8-bit PIC18J-family RISC microcontroller running up to 40 MHz at 3.3 V, with 32 KB Flash program memory and 1024 bytes of SRAM, housed in a 44-pin QFN (8x8 mm) package with an exposed thermal pad. The PIC18F45J10T-I/ML integrates an enhanced USART with LIN master/slave hardware, two MSSP (I2C/SPI) peripherals with address masking for I2C, a 10-bit ADC, and nanoWatt power management. Operating voltage is 2.0 V-3.6 V across the -40 C to +85 C industrial range. The wide 2.0 V-3.6 V supply range plus deep-sleep nanoWatt modes suit battery-powered and energy-harvesting designs. This tape-and-reel variant ships in the same 44-QFN (ML) footprint as the tray version (PIC18F45J10-I/ML), enabling assembly-line flexibility. The PIC18J family is a low-cost, high-performance PIC18 branch positioned between classic PIC18F and PIC18K devices. A PIC microcontroller is an 8-bit RISC single-chip computer integrating CPU core, Flash, RAM, EEPROM (none on this part), ADC, timers, and serial peripherals; the PIC18J subfamily adds the high-performance 16-bit instruction word with 8-bit data path and nanoWatt power-saving modes. Microcontrollers (MCUs) sit hierarchically under microcomputer -> embedded processor -> semiconductor IC. The PIC18F45J10T-I/ML differs from sibling PIC18F46J50 devices by Flash density (32 KB vs 64 KB) and the absence of full-speed USB, and from PIC18F45K22 by core (J vs K-series). Typical applications include consumer appliance control panels, sensor signal conditioning nodes, low-cost motor-control front ends, and LIN-attached automotive body modules (non-AEC-Q100). When migrating firmware from PIC18F452 to PIC18F45J10T-I/ML, note the 2.0 V-3.6 V supply restriction versus the legacy 5 V PIC18F452, and verify that the 32 KB Flash/1 KB RAM envelope fits the new code. The 44-QFN (8x8) pad layout simplifies layout review vs TQFP variants.

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PIC18F45J11-I/ML

PIC18F45J11-I/ML - 8-bit 48MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18F45J11-I/ML is a low-power, high-performance 8-bit PIC18J-series microcontroller with 32KB of Flash program memory, 48MHz CPU clock (12 MIPS), and a 44-pin QFN (8x8) package qualified to the industrial -40C to +85C operating range. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), and peripherals onto one silicon die. Within the embedded hierarchy, an MCU sits between a microprocessor (which requires external memory and peripherals) and a system-on-chip (which integrates radios and high-speed analog). The PIC18 family uses a RISC Harvard architecture with separate program and data buses, enabling one instruction per clock cycle. PIC18J-series devices specifically add Peripheral Pin Select (PPS), nanoWatt XLP power management, and a wide 2.0V-3.6V core supply from a 2.7V-3.6V single rail (J11 family), or the 4.2V-5.5V variant used here. Key features include 32KB (16K x 16) Flash, 3.8KB RAM, 1KB EEPROM, 36 digital I/O pins with PPS remapping, a 12-bit ADC with up to 13 channels, two analog comparators, two CCP/ECCP modules, two MSSP (SPI/I2C) ports, two enhanced USART, and a full-speed USB 2.0 device controller with on-chip transceiver. The nanoWatt XLP technology adds deep-sleep modes drawing under 100 nA, making the part suitable for battery-powered applications. Architecturally, the PIC18F45J11 uses a 16-bit instruction word with an 8-bit data path, a 31-level hardware stack, and an instruction cycle of 4 clock periods. The integrated 5V-to-3.3V LDO inside the package powers the core from a single 5V rail, eliminating external regulators in 5V systems. The 44-pin QFN (8x8 mm) package offers an exposed thermal pad for low thermal resistance. Typical applications include USB peripherals (HID, CDC, custom classes), industrial sensor interfaces with 12-bit ADC, low-power battery sensor nodes with nanoWatt XLP, automotive body controllers, home automation bridges, and consumer HMI panels. Designers choose this part when they need USB device connectivity plus rich analog peripherals in a compact surface-mount footprint. When designing with this MCU, observe the 4.2V-5.5V supply window and ensure VUSB 3.3V is provided by the internal regulator (or bypassed if USB is unused). Decouple VCAP with a 10uF ceramic to the exposed pad (EP), and route the 48MHz clock trace as a short, guarded differential pair when using an external crystal. PPS mapping must be configured in firmware before the alternate peripheral can drive the pin. This page synthesizes distributor pricing, drop-in alternatives, parametric comparisons, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single-decision-tree view of the PIC18F45J11-I/ML.

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PIC18F45J11-I/PT

PIC18F45J11-I/PT - 32KB Flash 8-bit MCU 48MHz TQFP-44 | Microchip

The Microchip Technology PIC18F45J11-I/PT is an 8-bit PIC18J-series microcontroller featuring 32KB Flash program memory, 4KB RAM, 48MHz (12 MIPS) operation, and nanoWatt XLP extreme-low-power technology, housed in a 44-pin TQFP (10x10mm) package. It belongs to the PIC18 J-series of enhanced Flash microcontrollers with 12-bit A/D conversion, providing cost-sensitive embedded designs with low power and high performance in a small footprint. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash, RAM, EEPROM), and programmable peripherals. The PIC18 family uses a RISC (Reduced Instruction Set Computer) Harvard architecture: separate program and data buses allow simultaneous fetch and execution, while the PIC18J subset operates from a 2.0-3.6V range with internal regulator for low-power designs. The '45J' member sits in the mid-density Flash tier, balancing code space, RAM, and I/O count for connected-sensor and human-interface applications. Key features of the PIC18F45J11-I/PT include 32KB (16K x 16) Flash program memory, 4KB SRAM data memory, 1KB EEPROM, a 10-bit ADC with up to 13 channels, two analog comparators, two 8-bit timers and three 16-bit timers, two MSSP (SPI/I2C) modules, two Enhanced USART modules, and Peripheral Pin Select (PPS) for flexible signal routing. The deep-sleep current can fall into the nanoamp range using the RTCC and an internal low-power RC oscillator. Architecture-wise the device employs an enhanced PIC18 core with hardware multiplier, 8x8 hardware multiply and a 16-bit-wide instruction path, enabling 12 MIPS at 48MHz. Internal voltage regulation allows single-supply 2.0-3.6V operation while supporting 5V-tolerant digital inputs on most I/O. The 12-bit ADC achieves up to 1 Msps in successive-approximation mode and integrates a bandgap reference for ratiometric measurements. Typical applications include USB/HID peripherals, sensor hubs, industrial control panels, low-power remote controls, smart thermostats, and battery-powered data loggers. The 36 available I/O lines suit parallel LCDs, keypads, and multi-channel analog front ends, while the two USART and two MSSP peripherals enable bridging to RS-232, RS-485, SPI sensors, and I2C EEPROMs. Designers should budget decoupling capacitance close to VDD/AVDD pins and provide a low-ESR bulk cap on VCAP. Use the PPS mapping registers to reassign digital peripherals, but note that analog functions are not selectable. For USB-less designs that need USB later, consider PIC18F45J50 (with on-chip USB) as a drop-in migration path.

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