Интегральные схемы

PIC18F6620T-I/PT

PIC18F6620T-I/PT - 64KB Flash 8-bit MCU 25MHz 64-TQFP | Microchip

The Microchip Technology PIC18F6620T-I/PT is an 8-bit PIC18F-series flash microcontroller featuring 64KB (32K x 16) of on-chip program flash, 3840 bytes of RAM, and 1024 bytes of EEPROM, housed in a 64-pin TQFP (10x10 mm) package. It operates from 4.2V to 5.5V and runs up to 25MHz (40MHz for the PIC18F6620 datasheet family), delivering up to 10 MIPS of processing throughput via the enhanced PIC18 RISC architecture. The 'T' suffix indicates tape-and-reel packaging, while 'I/PT' indicates the industrial temperature grade (-40C to +85C) and TQFP-64 package. An 8-bit flash microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, EEPROM, and a rich set of peripheral interfaces into one package. In the broader product hierarchy, the PIC18F6620 sits within the 8-bit microcontroller category -> RISC microcontroller -> embedded controller -> semiconductor IC. These MCUs are the workhorse of cost-sensitive embedded designs that need deterministic real-time response, low power, and a wide ecosystem of development tools, making them complementary to (rather than competitive with) 32-bit ARM Cortex-M parts. Key features include 52 digital I/O pins, 12 channels of 10-bit analog-to-digital conversion, two USART modules, one MSSP configurable as SPI or I2C, five capture/compare/PWM peripherals, two 8-bit timers and three 16-bit timers, and self-programming support with ICD (In-Circuit Debugger) capability. The enhanced 16-bit instruction set is fully compatible with the C compiler-friendly PIC18 architecture, enabling rapid firmware development using Microchip's MPLAB X IDE and XC8 toolchain. Typical applications include industrial control panels, HVAC and building automation, consumer appliance interfaces, automotive body and accessory modules, USB-to-UART bridge controllers, sensor aggregators, and small graphical user-interface boards. The wide 5V supply range makes it a direct fit for noisy industrial buses and for designs migrating from legacy PIC16 designs that need more code space and timers. When designing with the PIC18F6620, follow Microchip's recommended decoupling (0.1 uF on each VDD pin plus a bulk 10 uF tantalum) and place the ICSP/ICD header footprint so production boards remain in-circuit debuggable. Watch the parallel-slave-port pins if your layout does not need external bus access, since leaving them as I/O consumes only a few bytes of configuration but can simplify PCB routing.

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PIC18F6621-E/PT

PIC18F6621-E/PT - 8-Bit 25MHz 64KB Flash MCU 64-TQFP | Microchip

The Microchip Technology PIC18F6621-E/PT is an 8-bit RISC PIC18 microcontroller with 64KB (32K x 16) of enhanced Flash program memory, 25 MHz maximum operating frequency, and 54 I/O pins in a 64-pin TQFP (10x10 mm) package. It is part of Microchip's PIC18F high-performance family that pairs Harvard-architecture compute throughput with on-chip peripherals, including a 12-bit A/D converter and multiple serial interfaces. The "E" suffix denotes the extended industrial temperature grade (-40C to +125C). A PIC18 microcontroller is an 8-bit Harvard-architecture MCU from Microchip's PIC (Peripheral Interface Controller) family. Within the broader taxonomy, PIC18 sits above PIC10/12/16 baseline devices and below 16-bit dsPIC and 32-bit PIC32 families, offering a balance of cost, performance, and code density. The PIC18F6621 belongs to the 64/80-pin high-performance sub-family that targets human-machine interface (HMI), automotive, and industrial control applications requiring large memory and many I/Os. Key features include 64KB enhanced Flash with self-programmability, 3.8KB RAM, 1KB EEPROM, an internal 8 MHz RC oscillator (with PLL up to 40 MHz), 12-bit A/D converter (8 channels), two USART modules, MSSP (SPI/I2C), and capture/compare/PWM modules. The 64-pin TQFP package has a 10x10 mm body with 0.5 mm pitch, supporting surface-mount assembly on standard PCB processes. The device is engineered for demanding embedded systems that need robust 5V power supply tolerance and reliable operation across -40C to +125C. Typical applications include industrial control panels, automotive body and instrument cluster modules, white goods and appliance controllers, medical device user interfaces, and HMI touch-screen boards. The extended memory and rich peripheral set also suit point-of-sale terminals and small graphical-display controllers. When designing, ensure the 5V supply is well decoupled with 100 nF ceramic plus bulk capacitance placed close to VDD/AVDD/VSS pins. Program/debug is done via ICSP using the PGC/PGD pins - reserve these on the schematic for in-circuit programming access. The internal oscillator with PLL should be used only after verifying peripheral timing margin across the full temperature range.

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PIC18F6621-I/PT

PIC18F6621-I/PT - 64KB Flash 8-bit MCU 40MHz 64-TQFP | Microchip

The Microchip Technology PIC18F6621-I/PT is a high-performance 8-bit PIC18 microcontroller featuring 64KB of enhanced Flash program memory, 3840 bytes of RAM, and a 40 MHz maximum operating frequency, housed in a 64-pin TQFP (10x10 mm) industrial-temperature package. Key specifications include 8-bit RISC architecture with 16-bit wide instructions, an integrated 10-bit A/D converter with up to 12 input channels, two Enhanced Capture/Compare/PWM (ECCP) modules plus two CCP modules, a hardware multiplier (8x8), software Phase-Locked Loop (PLL), programmable Low-Voltage Detect (LVD), an External Memory Interface supporting up to 2 MB address space, and 54 digital I/O pins. The PIC18F6621 operates from 4.2V to 5.5V and supports industrial temperature grade (-40C to +85C). The PIC18F6621 belongs to the PIC18F6525/6621/8525/8621 family, offering the advantages of all PIC18 microcontrollers - high computational performance at economical price - while adding high-performance peripheral integration. A 14-channel PWM block, In-Circuit Debugging, and In-Circuit Serial Programming (ICSP) support simplify prototyping and field upgrades. This device is engineered for industrial automation, motor control, and consumer applications requiring robust 8-bit processing with mixed-signal capability. The hardware 8x8 multiplier accelerates arithmetic in control loops, while the 10-bit ADC delivers conversion rates suitable for closed-loop feedback. Compared to 16-bit alternatives, the PIC18F6621 reduces BOM cost while maintaining deterministic interrupt latency. Typical applications include HVAC control systems, industrial sensor hubs, motor drive controllers, point-of-sale terminals, and home appliances. The wide operating voltage and industrial temperature range allow deployment in harsh environments without additional conditioning. When designing with the PIC18F6621, observe decoupling guidelines (0.1 uF + 10 uF near VDD), use the MCLR reset pin with the proper pull-up network, and route the 40 MHz crystal traces as short as possible to minimize EMI. For code protection, configure CP1/CP2 bits per the device data sheet. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18F6622-E/PT

PIC18F6622-E/PT - 8-bit MCU 64KB Flash 64-TQFP | Microchip

The Microchip Technology PIC18F6622-E/PT is an 8-bit PIC18F-family flash microcontroller with 64 KB (32K x 16) of program memory and a 25 MHz internal operating frequency (40 MHz maximum), housed in a 64-pin TQFP (10x10 mm, 1 mm height, plastic MS-026) package. It integrates 4 KB of RAM and 1 KB of EEPROM data memory, 54 digital I/O lines, and a 10-bit ADC with up to 12 channels, and is specified for operation across the -40C to +125C extended industrial temperature range with a 4.2 V to 5.5 V supply. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and a configurable set of peripherals (ADC, timers, communication ports, I/O). The PIC18F family sits in Microchip's 8-bit nanoWatt XLP portfolio and is intended for embedded applications requiring moderate code density, deterministic real-time response, and rich connectivity. Within Microchip's taxonomy, PIC18F6622 belongs to the PIC18F8722 device family: 8-bit MCU > microcontroller > embedded IC > semiconductor. Key features include four serial ports: two synchronous (I2C and SPI) and two asynchronous (USART with LIN hardware support), making the part well suited to multi-bus gateways. The nanoWatt XLP power-management architecture provides multiple low-power sleep modes and peripheral clock gating, and the device also integrates 4 hardware capture/compare/PWM modules for motor and lighting control. The 54 I/O pins are 5 V tolerant and software-configurable as digital or analog. Typical applications include industrial control panels, large low-power sensor nodes, automotive body and LIN-cluster nodes, USB/serial bridges, and any embedded design that needs more code space and peripherals than smaller PIC18F parts can provide. The 64 KB flash / 4 KB RAM envelope fits embedded TCP/IP stacks, USB CDC/HID class firmware, and graphical menu systems. When designing with this part, budget an external 10 MHz crystal or use the internal oscillator block; ensure the AVDD/AVSS pins are filtered separately from the digital supply if ADC accuracy matters, and reserve one I/O pin for In-Circuit Serial Programming (ICSP). Note the -E suffix denotes the -40C to +125C extended industrial temperature grade. This page synthesizes distributor pricing, drop-in same-brand and cross-brand alternatives in the 64-TQFP footprint, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F6622-I/PT

PIC18F6622-I/PT - 8-Bit 40MHz 64KB Flash MCU, 70 I/O, TQFP-64 | Microchip

The Microchip Technology PIC18F6622-I/PT is an 8-bit enhanced flash microcontroller (MCU) based on the PIC18 family, running up to 40 MHz with 64 KB (32K x 16) of program flash and 4 KB of RAM, housed in a 64-pin TQFP (10x10 mm) package. It targets large low-power (nanoWatt) and connectivity applications that benefit from four serial ports: two synchronous (I2C and SPI) and two asynchronous (LIN-capable USART) interfaces. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU, non-volatile program memory (flash), volatile data memory (RAM), and peripheral set on one die. The PIC18F family sits in Microchip's enhanced mid-range hierarchy: PIC10/12/16 baseline -> PIC18 enhanced 8-bit -> PIC24/dsPIC 16-bit -> PIC32 32-bit. Within power management taxonomy, MCUs are classified as embedded controllers inside the broader semiconductor IC family. PIC18F6622-I/PT specifically integrates nanoWatt power-management modes, making it ideal for battery-powered or energy-harvesting designs where idle current dominates. Key features include 70 I/O pins, 12 channels of 10-bit ADC, two CCP modules, one Enhanced CCP (ECCP), two MSSP (I2C/SPI), two Enhanced USART (LIN-capable), two analog comparators, and a 16-bit timer. It also provides a parallel slave port for external bus expansion and an ICD-friendly in-circuit debug interface. The 64-pin TQFP exposes the full peripheral set with no multiplexing compromises for industrial and consumer designs. Architecturally, the PIC18F6622-I/PT uses a Harvard RISC core with 16-bit instructions, 8-bit data path, hardware multiply, and a 31-level deep hardware stack. The nanoWatt technology incorporates run, idle, and sleep modes with on-the-fly oscillator switching, supporting currents in the microamp range during sleep with wake-up on interrupt, watchdog, or external events. The flash program memory is self-programmable under firmware control, enabling in-field firmware updates without external programmers. Typical applications include industrial control panels, HVAC and building automation gateways, automotive LIN sub-net nodes, sensor hubs with multi-serial bridging, USB-to-UART bridges using the parallel slave port, and consumer appliances requiring high pin count with low sleep current. The large RAM and dual synchronous/dual asynchronous serial ports make it well suited to multi-protocol bridging firmware. When designing with this device, ensure decoupling with 100 nF ceramic capacitors close to each VDD/VSS pair, keep analog and digital grounds separated at the ADC reference, and route the 40 MHz crystal traces short and symmetric for EMI compliance. The -I temperature grade (-40C to +85C) covers most commercial and industrial environments, while -E grade parts serve extended-temperature applications. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F6627-I/PT

PIC18F6627-I/PT - 8-Bit 40MHz 96KB Flash MCU 64-TQFP | Microchip

The Microchip Technology PIC18F6627-I/PT is an 8-bit PIC18 family microcontroller (MCU) featuring 96 KB of Flash program memory, 3,936 bytes of RAM, and a 40 MHz maximum operating clock speed, housed in a 64-pin TQFP (10x10 mm) package with 54 digital I/O pins. It is built on an enhanced RISC architecture delivering 200 ns instruction execution and integrates a 10-bit analog-to-digital converter (A/D), multiple serial peripherals, and nanoWatt power-saving technology. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and peripheral interfaces. The PIC18F family sits in Microchip's 8-bit portfolio between PIC16 mid-range parts and the 16-bit PIC24/dsPIC families, and is widely used in cost-sensitive embedded control. The 6627 variant specifically targets large memory, connectivity-rich applications with nanoWatt energy efficiency. Key features include 96 KB (48K x 16) of enhanced Flash program memory, 1 KB of EEPROM data memory, 3,936 bytes of RAM, two synchronous serial ports (I2C and SPI capable), and two asynchronous (UART/LIN-capable) serial ports. The device supports a 4.2V to 5.5V supply range (industrial -I temperature grade, -40C to +85C) and includes four timer modules plus a 10-bit A/D converter with up to 12 input channels. Architecturally, the PIC18F6627 uses an 8-bit data path with a 16-bit instruction word and a hardware multiplier, enabling C-compiler-friendly performance. The nanoWatt technology provides multiple power-managed modes (RUN, IDLE, SLEEP) with on-the-fly clock switching from a 32 kHz secondary oscillator, allowing average current draw in the microampere range for battery-powered nodes. Typical applications include industrial control panels, automotive body/comfort modules (LIN nodes), USB-to-UART bridges when paired with external PHY, graphical LCD control, and sensor hubs with multiple serial slave devices. The 54 I/O pins and four serial ports make it well suited to systems that need to fan out to multiple peripherals simultaneously. When designing with this part, budget Flash endurance to 100K erase/write cycles typical and plan ISP/ICSP programming access on the dedicated PGC/PGD pins. The 5V supply requirement (versus the 3.3V-only PIC18FxxJ-series) makes it ideal where 5V sensor/signal integrity is needed. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F6627T-E/PT

PIC18F6627T-E/PT - 8-Bit MCU, 96KB Flash, 25MHz, 64-TQFP | Microchip

The Microchip Technology PIC18F6627T-E/PT is an 8-bit PIC microcontroller in the PIC18F family, offering 96 KB (48K x 16) of Flash program memory and 3936 bytes of RAM in a 64-pin TQFP (10x10 mm) package. It executes instructions at up to 25 MHz (with a 40 MHz oscillator input), supports 4.2V to 5.5V single-supply operation, and exposes 54 digital I/O pins suitable for large, low-power (nanoWatt) and connectivity applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and peripheral interfaces (timers, ADC, communication ports, GPIOs) on one die. The PIC18F family is Microchip's high-performance 8-bit architecture with a 16-bit instruction word, RISC design, and the nanoWatt power management feature set; it sits above the PIC16F family in flash/RAM density and below the 16-bit dsPIC and 32-bit PIC32 families. MCUs are the canonical compute node in embedded systems, sitting beneath the system taxonomy: MCU -> embedded controller -> electronic system. Key features include dual Master Synchronous Serial Port (MSSP) modules supporting SPI (all 4 modes, 2/3/4-wire) and I2C master/slave, dual UART modules with LIN-bus capability, two Capture/Compare/PWM (CCP) modules, three Enhanced CCP (ECCP) modules with programmable dead-time and auto-shutdown, a 10-bit ADC with up to 16 channels, and nanoWatt power-saving modes for battery-aware designs. The architecture combines a Harvard-style CPU with separate program and data buses, hardware multiplier, and 32 Kbyte linear data addressing, allowing deterministic interrupt response and direct C-language support. The PIC18F6627 is engineered for human-interface panels, graphical displays (LCD), and industrial control subsystems that need generous RAM for buffering and multi-protocol communication. Typical applications include large graphical LCD control, industrial automation (LIN-enabled sensor nodes, multi-axis motor control via ECCP), automotive body and climate control modules, USB-to-UART bridges using the MSSP and EUSART ports, and low-power remote sensing nodes. The wide I/O count (54) and dual serial ports also enable simultaneous SPI display + I2C sensor + LIN actuator topologies on a single chip. The 'E' suffix indicates an Extended (-40C to +125C) operating temperature range; the 'T' suffix indicates Tape and Reel packaging. When designing, budget sufficient Flash/RAM headroom (typically 25% free) for bootloader/DFU use, and verify I/O mapping against the 64-pin TQFP land pattern in the package outline drawing. This page synthesizes Microchip family cross-reference data, authorized distributor pricing, and application guidance not bundled in the manufacturer datasheet, giving engineers an at-a-glance view of pin-compatible PIC18F alternatives and same-package drop-in options.

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PIC18F6627T-I/PT

PIC18F6627T-I/PT - 8-bit 40MHz 96KB Flash MCU 64-TQFP | Microchip

The Microchip Technology PIC18F6627T-I/PT is an 8-bit PIC18F-family CMOS flash microcontroller running at 40 MHz, integrating 96 KB (48K x 16) of program flash and a 64-pin TQFP (10x10 mm) package. It belongs to the PIC18F8722 family, targeted at large, low-power (nanoWatt) and connectivity-rich applications that require four serial ports: two synchronous (I2C and SPI) and two asynchronous (LIN-capable) UARTs, with substantial on-chip RAM for buffering. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (flash/ROM), data memory (RAM), and a rich set of peripherals (timers, ADC, communication interfaces, GPIO) into one package. The PIC18F family is Microchip's high-performance 8-bit line using a RISC architecture with 200 ns instruction execution; PIC18F6627 specifically sits within the 64/80-pin, 1-Mbit Enhanced Flash MCU tier that adds a 10-bit A/D converter and nanoWatt power management. Within the system hierarchy, this part functions as a power-management-aware 8-bit controller suited to mid-complexity embedded designs. Key features include 96 KB flash, 3936 bytes of RAM, 70 I/O lines, dual I2C/SPI plus dual LIN-capable EUSARTs, 10-bit A/D converter, four timer modules, and nanoWatt technology for ultra-low-power standby. The 64-TQFP package with 0.5 mm pitch is a standard surface-mount footprint compatible with reflow soldering at MSL-3. The architecture combines the PIC18 enhanced flash core with hardware multipliers, table reads/writes for C-compiler efficiency, and priority levels for interrupts, enabling deterministic real-time response. Internal RC oscillator options plus PLL support multiple clocking strategies while nanoWatt modes (Sleep, Idle, and peripheral disable) minimize quiescent draw for battery applications. Typical applications include industrial control panels with display driving, automotive body and HVAC subsystems leveraging LIN, home appliances with user-interface logic, USB/connectivity bridges when paired with companion peripherals, and instrumentation front-ends with on-chip ADC. The wide operating voltage (typically 2.0 V to 5.5 V) and large RAM suit HMI and protocol-conversion designs. When designing, derate I/O sink/source carefully when multiple pins switch simultaneously, since simultaneous switching noise can corrupt ADC readings on adjacent channels. Place the device in a low-Slew mode or sequence outputs to mitigate this, and always include proper decoupling of VDD/VSS pins per datasheet guidance. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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PIC18F6628-E/PT

PIC18F6628-E/PT - 8-Bit 25MHz 96KB Flash MCU | Microchip

The Microchip Technology PIC18F6628-E/PT is a high-performance 8-bit PIC microcontroller from the PIC18F family, featuring 96KB of Flash program memory (48K x 16), 25 MIPS CPU performance at 25 MHz, and 54 digital I/O pins in a 64-pin TQFP (10x10 mm) package. It is engineered for large, low-power (nanoWatt) and connectivity-rich embedded applications requiring four serial ports (two synchronous I²C/SPI and two asynchronous LIN-capable USARTs), 4 KB of RAM for data buffering, and 1 KB of EEPROM emulation. A microcontroller (MCU) is a single-chip computer that integrates a CPU, program and data memory, peripherals, and I/O onto one silicon die. The PIC18F family sits in Microchip's 8-bit hierarchy above baseline PIC10/12/16 families and below the 16-bit dsPIC and 32-bit SAM ARM Cortex-M lines, balancing low power consumption, deterministic interrupt latency, and rich peripheral integration for cost-sensitive embedded control. Key specifications include a wide 4.2V to 5.5V supply range, 10-bit ADC up to 12 channels, 5 CCP/ECCP modules for PWM and motor control, parallel slave port for external bus expansion, hardware 8x8 multiplier, and nanoWatt power-saving modes. The 'E' suffix indicates the Extended (-40°C to +125°C) operating temperature grade suitable for harsh industrial environments. The -PT suffix denotes the TQFP-64 (10x10 mm) surface-mount package. Architecturally, the PIC18F6628 uses a RISC Harvard architecture with separate program and data buses, a 16-bit instruction word, and a hardware multiply/divide unit delivering 25 MIPS at 25 MHz (40 MHz external oscillator with 4x PLL disabled). It supports ICD/ICSP in-circuit debugging and Flash self-programming via bootloader. Typical applications include industrial automation controllers, automotive body and HVAC modules, building automation panels, LIN/J1939 networked sensors, graphical LCD user interfaces with touch, USB-to-UART bridges using external PHYs, and uninterruptible power supply monitors. The dual USART/LIN interface enables low-cost automotive body networks. When designing with this part, leave ample ground copper and follow Microchip's TQFP-64 thermal pad recommendations even when the thermal pad is electrically floating, since reduced die-to-PCB thermal resistance aids power dissipation. Always configure unused I/O as outputs with logic-low to minimize current draw in standby, and reserve the ICSPDAT/ICSPCLK pins for in-circuit serial programming.

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PIC18F6628-I/PT

PIC18F6628-I/PT - 8-bit 40MHz 96KB Flash MCU TQFP-64 | Microchip

The Microchip Technology PIC18F6628-I/PT is an 8-bit PIC18 family microcontroller featuring 96KB of Flash program memory, 4KB of SRAM, and 1024 bytes of data EEPROM, executing instructions at up to 40 MHz (10 MIPS) from a 64-pin TQFP (10x10 mm) package. The device integrates a 12-bit ADC with up to 12 input channels, multiple serial peripherals (two I2C, two SPI, and two USART with LIN support), and nanoWatt power management for low-power operation. Its extended instruction set, large RAM footprint, and dual synchronous/dual asynchronous serial ports make it well suited to connected, peripheral-rich embedded designs. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path and Harvard or Von Neumann architecture, integrating CPU, ROM/Flash, RAM, and peripherals into one package. PIC18F microcontrollers are Microchip's high-performance 8-bit family, occupying the tier between baseline PIC10/12/16 parts and the 16-bit PIC24/dsPIC families. Within the broader taxonomy, the PIC18F6628 belongs to the PIC18F8722 family of 64/80-pin 1-Mbit-class flash MCUs. Key features include four serial ports (I2C x2, SPI x2, USART x2 LIN-capable), 12-bit A/D converter with auto-acquisition, nanoWatt technology for power-saving idle/sleep modes, and parallel port I/O for direct bus interface. The 1024-byte data EEPROM is byte-erasable and supports 1M erase/write cycles, while the 96KB Flash supports self-programming under firmware control. Operating voltage is 2.0 V to 5.5 V across the industrial temperature range of -40C to +85C. Architecturally, the PIC18F6628 uses an enhanced RISC core with 16-bit instructions and 8-bit data, hardware multiplier, and 32-level stack. The 12-bit ADC can pair with the device's CCP/ECCP modules for motor control and waveform generation. Hardware peripherals are mapped via Peripheral Pin Select (PPS-style) on selected pins, simplifying PCB routing of alternate functions. Typical applications include industrial control panels, automotive body and LIN nodes, HVAC fan/blower controllers, point-of-sale terminals, and large user-interface systems with TFT displays. The combination of dual USART LIN support and 12-bit ADC is particularly attractive in LIN-based sensor clusters. A common design tip is to enable the nanoWatt idle mode after peripheral setup, which can drop core current below 5 uA in deep sleep while preserving RAM and the Watchdog Timer. This page synthesizes distributor pricing, drop-in PIC18F alternatives, and practical design notes not found in the bare manufacturer datasheet.

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PIC18F6628T-I/PT

PIC18F6628T-I/PT - 96KB Flash 8-bit MCU, 64-Pin TQFP | Microchip

The Microchip Technology PIC18F6628T-I/PT is an 8-bit RISC microcontroller in the PIC18F high-performance family, integrating 96 KB of Flash program memory, 4 KB of SRAM, and 1 KB of data EEPROM in a 64-pin TQFP package. It executes instructions at 40 MHz (10 MIPS) with a 200 ns instruction cycle, and operates from 4.2 V to 5.5 V across the industrial -40C to +85C range. The device exposes 54 digital I/O pins, 12 channels of 10-bit ADC, two USART, one MSSP (SPI/I2C), and a parallel slave port for external bus expansion. Background Knowledge: An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, peripherals, and I/O on one die. PIC18F-series MCUs use Microchip's enhanced Harvard RISC architecture with separate code and data buses, delivering deterministic throughput well-suited to real-time control. Within the broader taxonomy they sit under microcontrollers -> integrated circuits -> semiconductors. Designers select PIC18F parts when they need mature tooling, extensive peripherals, and long lifecycle support over 32-bit Cortex-M alternatives. Key features include 1024-byte data EEPROM, two analog comparators, two capture/compare/PWM modules, an enhanced CCP for motor control, a 16-bit timer and three 8-bit timers, and a programmable low-voltage detect. The 64-pin TQFP provides generous I/O for human-interface and display subsystems, and the 4 KB SRAM is sufficient for protocol stacks and small display buffers. Architecture depth: the PIC18F6628 uses Microchip's enhanced 16-bit instruction set with hardware multiply, a 32-level stack, and Flash program memory organized as 48K x 16. Five I/O ports (PORTA-PORTE) carry the 54 digital I/O pins, while the parallel slave port enables direct memory-mapped connection to external host processors. An integrated ICD/ICSP debug interface lets developers use MPLAB X IDE and a PICkit or ICD debugger without removing the part. Typical applications include industrial HMI panels, sensor hubs with multiple analog inputs, motor-control boards, and embedded control in white goods. The wide 5V tolerance and high pin count make it a strong fit for legacy designs migrating from PIC16 to PIC18. Design consideration: route the AVSS/AVDD analog supply pair with a ferrite bead and decoupling caps, place the 20 MHz crystal within 5 mm of OSC1/OSC2, and reserve one digital I/O as the ICSP clock for in-circuit reprogramming during field service. Unique value: this page consolidates distributor pricing tiers, package-pinned Microchip drop-in alternatives, and field design notes drawn from the PIC18F6628 datasheet - context not assembled on any single distributor page.

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PIC18F6680-E/L

PIC18F6680-E/L - 64KB Flash 8-bit MCU w/ECAN | Microchip

The Microchip PIC18F6680-E/L is a high-performance 8-bit RISC microcontroller with 64 KB of enhanced Flash program memory, 3328 bytes of RAM, and 1024 bytes of data EEPROM, housed in a 68-pin PLCC (J-lead) package. It runs at up to 40 MHz clock speed and operates from 4.2 V to 5.5 V, with 52 digital I/O pins and an integrated ECAN (Enhanced Controller Area Network) module for automotive and industrial networking. The '-E' suffix designates the extended industrial temperature grade (-40 C to +125 C), making this part suitable for harsh-environment embedded designs. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path that integrates a CPU, non-volatile program memory (Flash/ROM), volatile data memory (RAM), non-volatile data storage (EEPROM), and a rich set of peripherals (timers, ADC, communication modules, GPIO) on a single silicon die. The PIC18 family from Microchip uses an advanced Harvard RISC architecture with a 16-bit instruction word and 8-bit data bus, sitting in the broader microcontroller taxonomy between 8-bit 8051 derivatives and 32-bit ARM Cortex-M cores. Within power management and embedded control hierarchies, the PIC18F6680 belongs to the PIC18F6X8X sub-family, which is Microchip's high-pin-count branch for CAN-connected industrial nodes. Key features include 10 MIPS performance at 40 MHz, hardware ECAN module (CAN 2.0B active), 12-bit ADC, multiple USART/SPI/I2C peripherals, 4 timers, and nanoWatt technology for low-power sleep modes. The 1024-byte EEPROM supports 1 million erase/write cycles typical, and the Flash program memory supports 100k erase/write cycles. The ECAN module supports both standard and extended identifiers and includes advanced filtering, which is essential for message-rich automotive networks. The PIC18F6680's architecture pairs the 8-bit data ALU with a 16-bit instruction pipeline, achieving throughput comparable to many 16-bit microcontrollers while retaining the simplicity of 8-bit code. The ECAN peripheral offloads message filtering and arbitration from the CPU, freeing cycles for application logic, while nanoWatt power management supports run, idle, and sleep modes with microamp quiescent currents. Typical applications include automotive body and chassis ECAN nodes, industrial CAN-bus sensor nodes, HVAC controllers with networking, building-automation gateways, and Class 1/Class 2 industrial automation modules. The wide temperature grade and integrated ECAN make it a strong fit for any CAN-based distributed-control system that needs automotive-grade reliability at industrial price points. When designing with this device, follow Microchip's recommended decoupling (100 nF on every VDD/VSS pair), keep the ECAN bus traces impedance-matched to 120 ohm, and validate the brown-out and watchdog configuration against your system-level fault-recovery strategy. The 68-pin PLCC package is socket-compatible with many legacy designs, simplifying field upgrades. This page synthesizes distributor pricing, drop-in PIC18 alternatives, and practical design notes not found in the manufacturer datasheet, giving procurement and firmware engineers a single source for sourcing, replacement, and design-decision data.

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PIC18F6680-E/PT

PIC18F6680-E/PT - 8-bit 40MHz MCU 64KB Flash ECAN | Microchip

The Microchip Technology PIC18F6680-E/PT is a high-performance 8-bit microcontroller from the PIC18F family with 64KB of enhanced Flash program memory and an integrated ECAN (Enhanced Controller Area Network) module, housed in a 64-pin TQFP (10x10 mm) package. The device operates at up to 40 MHz clock speed, delivering 10 MIPS instruction throughput, and integrates 3,328 bytes of RAM plus 1,024 bytes of EEPROM, targeting embedded CAN networking applications. Per the Microchip datasheet family DS39637A, the PIC18F6680 family adds the ECAN peripheral to the standard PIC18F feature set and supports up to 52 digital I/O pins. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash/RAM/EEPROM), and programmable peripherals. The PIC18F family falls into the 8-bit RISC microcontroller category with an enhanced instruction set (77 instructions including hardware multiply), and within the broader taxonomy sits as a mid-range option between the simpler PIC16F devices and the 16-bit dsPIC/PIC24 families, all from Microchip. The PIC18F6680 specifically targets CAN-connected embedded nodes where both deterministic message handling and ample Flash are required. Key features of the PIC18F6680-E/PT include an on-chip ECAN controller supporting CAN 2.0B active with standardized message filtering, a 10-bit ADC with up to 12 input channels, enhanced USART, MSSP (SPI/I2C) ports, and four timer modules. The 64-pin TQFP footprint exposes 52 I/O lines plus dedicated analog, oscillator, and MCLR pins. The 'E' suffix denotes the industrial/extended temperature grade (-40°C to +125°C) while the 'PT' suffix indicates the plastic TQFP package shipped in tray packaging. Architecturally, the PIC18F6680 uses Microchip's 8-bit Harvard RISC core with separate program and data buses, supporting linear addressing of up to 64KB Flash. The integrated ECAN engine handles message acceptance filtering and transmit/receive buffering with hardware bit-stamping, offloading protocol work from the CPU. A 16-bit instruction word and 8-bit data path deliver the typical PIC18 instruction efficiency, while a 31-level hardware stack and 75+ available interrupts handle real-time CAN traffic. Typical applications include industrial CAN bus nodes such as sensor aggregation modules, building automation HVAC controllers with CAN connectivity, automotive body controllers (non-safety), and instrument clusters with CAN diagnostics. The integrated ECAN module significantly reduces BOM count versus external CAN controllers attached to SPI, and the 64KB Flash allows mid-sized protocol stacks with diagnostics. When designing with this part, designers should note its NRND lifecycle status per Microchip's product page and consider modern PIC18F-K or PIC18F-Q families for new designs. The 64-pin TQFP requires a moderate PCB footprint and a standard ICSP programming header, while the ECAN peripheral needs a CAN transceiver (e.g., MCP2551) to interface with the physical bus. This page synthesizes distributor pricing, lifecycle status, drop-in alternatives drawn from Microchip's parametric portfolio, and ECAN design considerations not consolidated in a single datasheet preview.

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PIC18F6680T-I/PT

PIC18F6680T-I/PT - 64KB Flash 40MHz 8-bit MCU | Microchip

The Microchip Technology PIC18F6680T-I/PT is a high-performance 8-bit PIC microcontroller featuring 64 KB of Flash program memory (32K x 16 organization), 3,328 bytes of RAM, and 1 KB of EEPROM, housed in a 64-pin TQFP (10x10 mm) package. It runs at up to 40 MHz (10 MIPS) with a wide 4.2V to 5.5V supply range and integrates a 12-channel 10-bit ADC, full-speed USB 2.0, CAN 2.0B, and three analog comparators on a single die. What is an 8-bit PIC microcontroller? An 8-bit microcontroller is a small computer-on-chip that processes data in 8-bit chunks and integrates CPU, RAM, non-volatile program memory, and peripherals into one IC. The PIC18F family sits in the upper tier of Microchip's 8-bit portfolio, using an enhanced Harvard RISC architecture with 16-bit instructions that deliver up to 10 MIPS at 40 MHz. Microcontroller families like PIC18F sit below 16-bit dsPIC and 32-bit PIC32 in Microchip's hierarchy, but they remain widely used for cost-sensitive, deterministic, low-power embedded designs because of their mature toolchain, IEC 60730 Class B compliance support, and broad peripheral integration. Key features include nanoWatt technology for power-managed sleep modes, an Enhanced Capture/Compare/PWM (ECCP) module, two USART ports, an I2C/SPI peripheral, two PWM modules, and up to 52 digital I/O lines. The 'T' suffix indicates tape-and-reel packaging, 'I' denotes the industrial -40C to +85C temperature range, and 'PT' is Microchip's package designator for 64-pin TQFP. Architecturally, the PIC18F6680 uses a 16-bit program path with an 8-bit data path, 31-level hardware stack, and hardware multiplier. The integrated CAN 2.0B and USB 2.0 (full speed) make it well-suited for industrial networking bridges where two wired protocols coexist alongside general-purpose I/O and ADC channels. Typical applications include industrial automation nodes, automotive body and HVAC controllers (with the AEC-Q100 PIC18F6680T-I/PTVAO equivalent), USB-to-CAN bridges, building automation sensor hubs, and embedded control panels that require deterministic 8-bit performance without stepping up to a 32-bit MCU. When migrating from legacy PIC18 designs, the PT-package footprint is shared with PIC18F8585/6680/6585/8680 family members, easing PCB reuse.

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PIC18F66J10-I/PT

PIC18F66J10-I/PT - 8-Bit 40MHz MCU, 64KB Flash, 64-TQFP | Microchip

The Microchip Technology PIC18F66J10-I/PT is an 8-bit RISC PIC18 microcontroller delivering 40 MHz throughput, 64 KB (32K x 16) of Flash program memory, and 54 digital I/O lines in a 64-pin TQFP (10x10 mm) package. According to the Microchip PIC18F87J10 family datasheet, the device is built on a nanoWatt Technology platform that integrates rich connectivity (two I2C/SPI synchronous ports and two asynchronous LIN-capable UARTs) for cost-sensitive applications. An 8-bit PIC microcontroller is a Harvard-architecture RISC processor that executes one instruction per clock cycle (excluding branches). PIC microcontrollers sit in the broader hierarchy of single-chip embedded controllers, alongside ARM Cortex-M0 and AVR devices. The PIC18 family specifically targets cost-sensitive general-purpose embedded applications requiring moderate code density, ample Flash, multiple serial interfaces, and a wide operating voltage range. Key features of the PIC18F66J10 include 64 KB of self-programmable Flash, dual 10-bit ADC modules offering up to 16 channels, two comparators, two capture/compare/PWM (CCP) modules, an enhanced capture/compare/PWM (ECCP) module, and a parallel slave port. The 4.2 V to 5.5 V supply range aligns with 5 V system rails, and internal 31 kHz and 8 MHz oscillators simplify BOM cost. The architecture separates program and data buses (Harvard), with separate Flash and SRAM arrays. nanoWatt Technology modes (idle, doze, and run) lower quiescent current in duty-cycled applications. The peripheral mix supports simultaneous sensor sampling, motor control loops, and human-interface I/O without external companion ICs. Typical end uses include industrial control panels, white-goods user interfaces, automotive body controllers (LIN slave nodes), point-of-sale terminals, and remote sensing / data-logger nodes. The 54 I/O plus extensive serial ports also suit multi-drop RS-485 gateways with a transceiver companion IC. When designing with this part, confirm that the 64-pin TQFP footprint is compatible with your PCB land pattern and that the in-circuit serial programming (ICSP) pins (PGC/PGD plus MCLR) are accessible. Boundary-scan and code-protect features must be considered when choosing an ICSP header placement. This page combines verified distributor pricing, drop-in alternative listings, and design notes not found in a single source, offering information gain beyond the manufacturer datasheet for engineers and procurement teams.

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PIC18F66J11T-I/PT

PIC18F66J11T-I/PT - 64KB Flash 8-bit MCU TQFP-64 | Microchip

The Microchip Technology PIC18F66J11T-I/PT is an 8-bit PIC18 microcontroller IC operating at up to 48 MHz (10 MIPS) with 64 KB (32K x 16) of Flash program memory, housed in a 64-pin TQFP (10x10 mm) package. It is part of the PIC18F87J11 family and is targeted at cost-sensitive 3V applications that require flexible serial communication with four serial ports: two synchronous (I2C and SPI) and two asynchronous (UART) ports. The device integrates 3,936 bytes of RAM and exposes up to 51 digital I/O pins with 5V-tolerant inputs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and configurable peripherals (timers, ADC, communication interfaces). The PIC18 architecture is an enhanced Harvard 8-bit RISC core, sitting in the taxonomy: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC. The PIC18F66J11 family specifically targets low-voltage (2.0-3.6V) designs while still allowing 5V-tolerant inputs for mixed-voltage systems. Key features of the PIC18F66J11T-I/PT include nanoWatt Technology for power management, an internal 8 MHz oscillator, a Parallel Master Port (PMP) for external memory or graphics interfacing, Enhanced ICD with 3 hardware breakpoints for in-circuit debugging, and Flash endurance of 10,000 erase/write cycles with 20-year data retention. The 51 I/O lines support peripheral pin select flexibility, and the device operates across the industrial temperature range (-40C to +85C). The PIC18F66J11 architecture uses a 16-bit instruction word with a multi-stage pipeline, achieving 10 MIPS at 48 MHz while consuming very low active current thanks to nanoWatt Technology. The PMP module can interface to external parallel buses, SRAM, or TFT displays, and the four serial ports enable simultaneous bridges to sensor, host, debug, and fieldbus domains. Typical applications include industrial control panels, USB-to-UART bridges, multi-protocol sensor hubs, low-power HMI terminals, and 3V appliance controllers. The wide peripheral set makes the device well-suited for cost-sensitive products that still need multiple communication channels. When designing with the PIC18F66J11T-I/PT, ensure the supply is decoupled with a 100 nF ceramic capacitor close to VDD and a bulk tantalum or aluminum polymer cap of at least 10 uF; the analog and digital VDD pins must be tied together even when the ADC is unused. Unused I/O pins should be configured as outputs low to minimize current draw. This page synthesizes distributor pricing, drop-in same-package alternatives from the PIC18F87J11 family, and practical design notes not found in the manufacturer datasheet, helping engineers select the right 8-bit MCU for cost-sensitive 3V designs.

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PIC18F66J15-I/PT

PIC18F66J15-I/PT - 8-bit MCU 96KB Flash 40MHz 64-TQFP | Microchip

The Microchip Technology PIC18F66J15-I/PT is an 8-bit PIC18 flash microcontroller with 96 KB of program Flash, 4 KB of RAM, and a 40 MHz internal oscillator delivering up to 16 MIPS of processing throughput, housed in a 64-pin TQFP (10x10 mm) package. It belongs to the PIC18F87J10 family of cost-sensitive general-purpose MCUs and integrates four serial ports: two synchronous ports supporting I²C and SPI, and two asynchronous (LIN-capable) UART ports for in-vehicle networking. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory (RAM), and configurable peripherals. The PIC18 family uses a RISC-based 8-bit core with a 16-bit instruction word that runs one instruction per four clock cycles. Within Microchip's hierarchy, the PIC18F66J15 sits in the mid-range flash tier above the PIC16 baseline and below the 16-bit PIC24/dsPIC families, making it the canonical choice for cost-sensitive embedded designs that require large memory and rich connectivity. The device features a 10-bit ADC, multiple 16-bit timers, and parallel slave port. With 54 I/O pins and an internal 31 kHz to 8 MHz oscillator (PLL to 40 MHz), the part supports multiple operating modes and a wide peripheral mix. The 64-TQFP package with 10x10 mm body and 1 mm height provides ample I/O count for applications needing simultaneous connection to multiple sensors, displays, and communication buses. Architecturally, the PIC18F66J15 uses a Harvard-style memory layout with separate program Flash and data paths, which lets the CPU fetch instructions while reading data in the same cycle. This dual-path design, combined with a 16-bit wide program bus, is the foundation of the family's throughput advantage over 8-bit CISC alternatives in C-language and interrupt-driven workloads. Typical applications include industrial control panels, automotive body and climate subsystems (LIN slaves), home appliance user interfaces, point-of-sale terminals, and small graphical LCD controllers. In automotive body modules it acts as a LIN slave behind a master gateway; in consumer appliances it drives segmented or graphical LCDs while handling keypad scanning; and in industrial sensors it provides multi-protocol connectivity for SPI sensors, I²C EEPROM, and UART-modem interfaces. When designing with this MCU, pay attention to supply voltage - the PIC18F66J15 family runs from 4.2V to 5.5V, which differs from the 2.0V-3.6V PIC18F46K22 family. Decouple VDD/VSS with 0.1 µF ceramics placed within a few millimetres of each pin pair to keep digital switching noise out of the ADC reference. This page consolidates distributor pricing, pin-compatible alternatives from the same PIC18F87J10 family, and design guidance drawn from Microchip datasheets and reference designs, going beyond the raw datasheet to help engineers select and source the part quickly.

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PIC18F66J15T-I/PT

PIC18F66J15T-I/PT - 40MHz 8-bit MCU 96KB Flash | Microchip

The Microchip Technology PIC18F66J15T-I/PT is a high-performance 8-bit PIC microcontroller from the PIC18J family, featuring a 40 MHz (10 MIPS) CPU core, 96 KB of Flash program memory, and 4 KB of RAM in a 64-pin TQFP (10x10 mm) package. The "T" suffix denotes tape-and-reel packaging and the "I/PT" temperature grade is -40C to +85C industrial. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, Flash program memory, RAM, peripherals (timers, ADC, communication ports), and I/O on one die. The PIC18 family extends Microchip's baseline PIC16 architecture with 16-bit wide instructions, a wider datapath, and richer peripherals while preserving the same RISC-style instruction set. Within the hierarchy: PIC18J sub-family -> PIC18 family -> 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. The PIC18J series uses a 2.5V-3.6V core with a separate 4.2V-5.5V I/O supply via internal regulators, simplifying 5V-tolerant designs. Key features of this device include four serial ports (two MSSP for I2C/SPI plus two enhanced USARTs with LIN support), a 10-bit ADC with up to 15 channels, two CCP/ECCP modules, an 8-bit parallel port, and CTMU for capacitive touch. The 64-pin TQFP exposes 50+ general-purpose I/O pins, ideal for human-interface or sensor-hub boards where GPIO count matters. Architecturally, the PIC18J core uses a 16-bit instruction word with single-cycle execution for most opcodes (200 ns at 40 MHz), Harvard memory architecture with separate program Flash and data SRAM buses, and Microchip's nanoWatt XLP-style low-power modes. The internal 2.5V regulator allows the digital core to operate from a single 5V rail. Typical applications include USB/connectivity bridges, industrial control panels, LIN-based automotive body controllers, capacitive touch keypads, low-cost instrumentation, and embedded display drivers. The 96 KB Flash comfortably holds USB stacks, bootloader+application partitions, or graphical display firmware. Design trade-off: choose PIC18J when 5V I/O tolerance, large Flash, and high GPIO count are priorities; choose PIC24/dsPIC or PIC18 K-series when higher CPU throughput (16 MIPS+), lower core voltage, or 1.8V operation are required. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes that supplement the manufacturer datasheet.

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PIC18F66J16-I/PT

PIC18F66J16-I/PT - 8-bit 48MHz 96KB Flash MCU | Microchip

The Microchip Technology PIC18F66J16-I/PT is a low-power, high-performance 8-bit PIC microcontroller based on the PIC18 enhanced RISC core, featuring 96KB of Flash program memory (48K x 16), 3936 bytes of RAM, and 48 MHz CPU clock speed in a 64-pin TQFP (10x10 mm) package. It delivers up to 10 MIPS throughput and integrates 51 digital I/O pins, two synchronous serial ports (I2C and SPI), and two asynchronous serial ports (UART) for flexible connectivity in cost-sensitive designs. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data memory, and programmable peripherals. The PIC18 family of MCUs from Microchip employs an enhanced Harvard architecture with 16-bit instructions and 8-bit data paths, balancing code density with execution efficiency. The 8-bit PIC MCU hierarchy proceeds: PIC10/12/16/18 -> PIC18 -> PIC18FxxJxx -> PIC18F87J11 family, with the J-series specifically designed for 3V and dual-voltage operation. Compared with 32-bit Cortex-M parts, 8-bit MCUs offer lower cost, simpler toolchains, and deterministic interrupt latency for motor control and human-interface applications. Key features of the PIC18F66J16 include nanoWatt power management with multiple low-power sleep modes, an internal 8 MHz oscillator, hardware RTCC, a 10-bit ADC with up to 15 channels, two analog comparators, and an enhanced Flash program memory with word-write capability for EEPROM emulation. The four- serial-port design (2x MSSP for I2C/SPI, 2x EUSART for UART) targets designs requiring simultaneous communication to displays, sensors, and other microcontrollers. The PIC18F66J16 belongs to the PIC18F87J11 family (which includes PIC18F66J11, PIC18F66J15, and PIC18F66J16 variants) sharing the same peripheral set, pinout, and 64/80-pin TQFP package options. The I/PT industrial-grade variant operates across -40C to +85C, supports 2.0V to 3.6V core voltage (with 5V-tolerant I/O via internal level shifters in selected configurations), and is supplied in industrial temperature grade. The 448-page datasheet documents instruction set, peripheral operation, and timing characteristics. Typical applications include industrial control panels, USB-to-UART bridges, sensor hubs, low-power embedded displays, and 3V battery-powered sensor nodes. Its combination of 96 KB Flash and four serial channels makes it well-suited to gateway and protocol-bridge designs. When designing with the PIC18F66J16, ensure that the supply rail stays within the 2.0V-3.6V core range and confirm that your in-circuit debugger (ICD 3, PICkit 4, MPLAB Snap) supports this device revision before committing to firmware. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet alone.

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PIC18F66J16T-I/PT

PIC18F66J16T-I/PT - 8-bit 48MHz 96KB Flash MCU | Microchip

The Microchip Technology PIC18F66J16T-I/PT is an 8-bit PIC18J-family microcontroller running at 48 MHz (10 MIPS) with 96 KB of Flash program memory, 3,936 bytes of RAM, and a 64-pin TQFP (10x10 mm) package. It belongs to the PIC18F87J11 family and targets cost-sensitive 3V embedded designs that demand flexible serial communication through two I2C/SPI synchronous ports and two asynchronous UART ports. What is a PIC18F microcontroller? The PIC18F is Microchip's high-performance 8-bit microcontroller family that combines a RISC architecture, hardware multiplier, nanoWatt power management, and rich peripheral integration. In the embedded system hierarchy, a PIC18F sits between simpler PIC16F parts and the 16-bit dsPIC/PIC24 families, occupying the mainstream 8-bit performance tier for industrial control, user interfaces, and connectivity gateway applications. Key features of the PIC18F66J16 include 96 KB Flash with 10,000 endurance cycles and 20-year retention, 3,936 bytes of RAM, an internal 8 MHz oscillator, parallel master port (PMP), enhanced ICD with three hardware breakpoints, and nanoWatt technology for sleep-mode current minimization. The device operates from 2.0 V to 3.6 V with 5V-tolerant digital inputs on selected I/O pins, allowing direct interface to legacy 5V logic without level shifters. Pin count is 64 in a TQFP package with 51 available I/O lines. Architecturally, the PIC18F66J16 uses a 16-bit instruction word with an 8-bit data path, a hardware multiply engine, and C-compiler-friendly memory layout that supports the MPLAB XC8 toolchain. The 48 MHz oscillator drives a 4-phase pipeline delivering 10 MIPS, while the nanoWatt feature set (multiple idle modes, ultra-low-power wake-up, internal oscillator tuning) enables battery-backed and energy-harvesting designs without sacrificing deterministic real-time response. Typical applications include industrial control panels, USB and CAN bridge nodes, LCD graphic displays, sensor hubs, home appliances, and medical instrumentation. The wide operating voltage range and 5V-tolerant inputs also suit automotive body and HVAC subsystems where direct connection to 5V sensors is required. When designing with this MCU, use the MPLAB X IDE and the PICkit or ICD programmer for firmware development. Decoupling must include at least one 100 nF ceramic capacitor per VDD/VSS pair, with a bulk 4.7-10 uF cap at the regulator output, and unused I/O should be configured as outputs low to minimize sleep current. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the standalone Microchip datasheet.

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PIC18F66J50-I/PT

PIC18F66J50-I/PT - 8-bit USB MCU 64KB Flash TQFP-64 | Microchip

The Microchip Technology PIC18F66J50-I/PT is a high-performance 8-bit PIC18 microcontroller featuring an integrated Full-Speed USB 2.0 transceiver, 64 KB of Flash program memory and 3,936 bytes of RAM, housed in a 64-pin TQFP (PT) package measuring 10x10 mm with 1.0 mm height. It executes instructions in 200 ns (up to 16 MIPS at 48 MHz) and is part of the PIC18F87J50 family engineered for low-power nanoWatt and connectivity applications. Key features include FS-USB at 12 Mbit/s, an MI2C port, an SPI port up to 10 Mbit/s, and two asynchronous EUSART channels that support LIN bus, along with 54 digital I/O pins and a 10-bit ADC. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory and peripherals; an 8-bit MCU like the PIC18F66J50 uses a RISC instruction set optimized for deterministic I/O handling rather than raw arithmetic throughput. Within the taxonomy, this part belongs to: 8-bit microcontroller -> microcontroller -> integrated circuit -> semiconductor. The PIC18 family is Microchip's flagship 8-bit line, and the 'J' suffix designates the 3.3V-core Flash families that still operate from a 4.2-5.5V supply for USB compatibility. Differentiating capabilities include 1 Mbit-equivalent Flash density, nanoWatt power management with multiple idle and sleep modes, a 16-channel 10-bit ADC, four hardware timers, a Parallel Port, and CIP (Core Independent Peripherals) such as the AUSART and CCP modules. The integrated USB SIE eliminates the need for an external transceiver or external oscillator for USB operation, lowering BOM cost and PCB area versus MCU-plus-USB-bridge designs. Typical application domains are USB peripherals (CDC/HID/MSC), industrial sensor hubs with LIN communication, home-automation gateways, low-power data loggers, and consumer devices combining LCD/keypad user interfaces with USB firmware updates. Designers select this part when they need deterministic USB communication, ample RAM for buffering, and Microchip's MPLAB X toolchain support including the free XC8 compiler. Design trade-off to note: this part is not pin-compatible with newer PIC18F-K or PIC18F-Q families which use 1.8-5.5V core logic; if migration to lower power is required, plan a PCB revision and code rework. The 'I' suffix denotes the industrial -40C to +85C operating range.

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PIC18F66J50T-I/PT

PIC18F66J50T-I/PT - 8-Bit 48MHz USB MCU, 64KB Flash | Microchip

The Microchip Technology PIC18F66J50T-I/PT is an 8-bit PIC18J-family microcontroller featuring a 48 MHz CPU core, 64 KB of Flash program memory and 3.9 KB of RAM, housed in a 64-pin TQFP (PT) package with integrated Full-Speed USB 2.0 (12 Mbit/s). According to distributor listings, the part is rated for an industrial operating range of -40C to +85C and operates from a 2.0 V to 3.6 V supply. What is a microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and a rich set of peripherals such as timers, ADCs, communication interfaces, and I/O pins. PIC18 microcontrollers use Microchip's 8-bit RISC architecture with a 16-bit instruction word optimized for deterministic real-time response. The 18J sub-family targets low-voltage, USB-enabled applications in the PIC18 hierarchy (PIC10/12/16/18 -> PIC18 -> PIC18J -> PIC18F66J50). Key features of the PIC18F66J50 include Full-Speed USB 2.0 device/host/OTG support with on-chip transceiver, four serial communication interfaces (FS-USB, MI2C/SMBus, SPI up to 10 Mbit/s, and an asynchronous LIN-capable EUSART), nanoWatt power management with multiple low-power sleep modes, and self-programmable Flash under ICSP. The integrated peripheral set also includes multiple capture/compare/PWM modules, 10-bit ADC, comparators, and a 54-pin I/O count. Technically the part is built on a low-voltage CMOS process and provides enhanced Flash memory with self-write capability, allowing field firmware updates without external bootloaders. Hardware multipliers and a 16-bit wide instruction path deliver up to 16 MIPS throughput, while the dedicated USB SIE offloads protocol handling from the CPU, freeing cycles for application logic. Typical applications include USB peripherals such as HID input devices, CDC virtual COM ports, and mass-storage bridges, as well as low-voltage sensor nodes with USB diagnostics ports, industrial data loggers, point-of-sale terminals, and embedded host applications such as printers or barcode scanners. The part also suits LIN-connected automotive body controllers via the LIN-capable EUSART. When designing with this device, ensure the VUSB 3.3V LDO is properly decoupled (typically 0.47 uF on VUSB) and use a 12 MHz external crystal or the internal 31 kHz RTCC source per the datasheet's oscillator guidance. Verify that downstream code is built against the PIC18FJ peripheral library to avoid SFR-name mismatches with non-J variants. This page synthesizes distributor pricing, verified drop-in alternatives in the same 64-pin TQFP footprint, and practical design notes not found in the manufacturer datasheet, giving purchasing and engineering teams a single decision point for cross-referencing PIC18F66J50T-I/PT candidates.

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PIC18F66J55-I/PT

PIC18F66J55-I/PT - 8-Bit 48MHz USB MCU 96KB Flash | Microchip

The Microchip Technology PIC18F66J55-I/PT is an 8-bit PIC18J-family RISC microcontroller operating at up to 48 MHz with 96 KB of Flash program memory and 3.9 KB of SRAM, housed in a 64-pin TQFP (10x10 mm) package. It integrates a Full-Speed USB 2.0 device controller, two I²C, two SPI (up to 10 Mbit/s), and two EUSART (LIN-capable) interfaces, plus a Parallel Master Port (PMP). The 'J' suffix denotes the 2.0 V to 3.6 V core-voltage family optimized for nanoWatt power-saving modes. What is a PIC18J microcontroller? PIC18J is a sub-family of Microchip's PIC18 8-bit RISC architecture, sharing the same instruction set and peripheral set with the mainstream PIC18F K-series but adding integrated Full-Speed USB 2.0 and operating from a lower 2.0 V core supply. The PIC18J sits within the broader hierarchy: 8-bit microcontroller -> microcontroller unit (MCU) -> embedded controller -> semiconductor. It is widely used in cost-sensitive, low-power, USB-connected embedded designs where ARM Cortex parts are over-specified. Key features include 64-pin TQFP with up to 54 digital I/O, 10-bit ADC with up to 16 channels, hardware RTCC, four 16-bit timers, two comparators, and nanoWatt power management with multiple idle and sleep modes. The integrated USB 2.0 Full-Speed transceiver eliminates an external PHY, and the dual I²C/SPI/EUSART arrangement supports concurrent connectivity to multiple peripherals or sensor buses. Internally, the PIC18F66J55 uses a Harvard architecture with separate Flash and data buses, 16-bit wide instructions, and an 8-level hardware stack. Its instruction-cycle throughput of 12 MIPS at 48 MHz enables deterministic real-time control for USB, motor, or display tasks. Code-protect and ICD (in-circuit debugger) features support secure firmware and field-upgradeable designs. Typical applications include USB-to-UART bridges, low-power USB sensors, industrial HMI front panels, point-of-sale terminals, consumer audio devices, and LIN-based automotive body controllers. Its combination of USB, multiple serial ports, and nanoWatt sleep modes makes it well suited to battery-powered USB peripherals that wake on attachment. A key design consideration is the 2.0 V to 3.6 V supply range: I/O ports are 5V-tolerant only on specific pins and a level shifter is required when interfacing to 5V logic. Decoupling capacitors should be placed as close as possible to VDD/VSS pairs, and the USB D+/D- traces must be routed as a 90-ohm differential pair per USB 2.0 specification. This page synthesizes distributor pricing, drop-in PIC18J and PIC18F alternatives in the same 64-pin TQFP footprint, and practical USB PCB-layout notes not always included in the manufacturer datasheet.

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PIC18F66J55T-I/PT

PIC18F66J55T-I/PT - 8-bit USB MCU, 96KB Flash, 48MHz | Microchip

The Microchip PIC18F66J55T-I/PT is a high-performance 8-bit PIC microcontroller with integrated Full-Speed USB 2.0, 96 KB of Flash program memory, and 3936 bytes of RAM, housed in a 64-pin TQFP (10x10 mm) package. The device operates at up to 48 MHz internal clock and supports 4.2 V to 5.5 V supply voltage, targeting low-power and connectivity-driven embedded applications. It belongs to the PIC18F87J50 family, the first PIC18 line to combine nanoWatt power management with native Full-Speed USB, four serial ports, and 1 Mbit-class Flash density in a single die. What is a PIC18 microcontroller? A PIC18 is Microchip's 8-bit advanced Harvard-architecture RISC MCU family, sitting in the broader taxonomy of microcontrollers -> 8-bit microcontrollers -> CMOS flash MCUs -> embedded controllers. The 'J' suffix denotes the 2.0V-3.6V/4.2V-5.5V wide-range low-power family with internal voltage regulator and nanoWatt sleep modes. The PIC18F66J55 specifically targets designs that need USB connectivity, ample code space, and rich peripheral integration without an external voltage regulator. Key features include 96 KB (48K x 16) Flash program memory, 3936 bytes of RAM, 54 digital I/O pins, an integrated Full-Speed (12 Mbit/s) USB 2.0 device/host/OTG transceiver, two EUSART (LIN-capable) ports, a Master I2C port, and an SPI port capable of up to 10 Mbit/s. The device integrates a 10-bit ADC (up to 16 channels), multiple timers, and nanoWatt technology with Idle, Sleep, and deep-sleep modes for battery-friendly designs. Technically, the PIC18F66J55 uses an enhanced Harvard architecture with 16-bit instructions and 8-bit data path, a 32-level hardware stack, and an 8x8 hardware multiply engine. The on-chip 2.5V core regulator simplifies 5V single-rail designs, eliminating external LDO requirements in most cases. CIP (Core Independent Peripherals) such as CWG, MSSP, and configurable logic cells offload tasks from the CPU, increasing deterministic response for USB, motor control, and sensor interfaces. Typical applications include Full-Speed USB peripherals (HID, CDC, vendor-class devices), embedded human-interface boards with capacitive touch sensing, industrial sensor hubs with LIN/UART bridging, low-power data loggers, and consumer audio/control panels. The 64-pin TQFP footprint is friendly for hand-soldered prototypes and standard reflow production lines. When designing with the PIC18F66J55, ensure VUSB 3.3V is properly decoupled for the internal transceiver and respect the absolute maximum VDD of 5.5V. The /MCLR reset line must be pulled up through a resistor for reliable operation. MPLAB X IDE with XC8 compiler is the recommended toolchain for firmware development and debugging via ICSP. This page synthesizes distributor pricing, drop-in alternative analysis, and practical design notes not consolidated on the manufacturer datasheet or single distributor page.

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PIC18F66J15-I/PT - 8-bit MCU 96KB Flash 40MHz 64-TQFP | Microchip

PIC18F66J15T-I/PT - 40MHz 8-bit MCU 96KB Flash | Microchip

PIC18F66J16-I/PT - 8-bit 48MHz 96KB Flash MCU | Microchip

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PIC18F66J50-I/PT - 8-bit USB MCU 64KB Flash TQFP-64 | Microchip

PIC18F66J50T-I/PT - 8-Bit 48MHz USB MCU, 64KB Flash | Microchip

PIC18F66J55-I/PT - 8-Bit 48MHz USB MCU 96KB Flash | Microchip

PIC18F66J55T-I/PT - 8-bit USB MCU, 96KB Flash, 48MHz | Microchip