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PIC16CE625T-20E/SO

PIC16CE625T-20E/SO - 8-bit PIC MCU, 3.5KB OTP, 20MHz, 18-SOIC | Microchip

The Microchip Technology PIC16CE625T-20E/SO is an 8-bit PICmicro CMOS microcontroller from the PIC16CE62X family, featuring a 20MHz maximum clock input, 3.5KB (2K x 14) One-Time Programmable (OTP) program memory, 128 bytes of RAM, and 128 bytes of EEPROM data memory, housed in an 18-pin SOIC package. The "T" suffix indicates tape-and-reel packaging and the "E" indicates the extended commercial temperature grade, while "-20" denotes the 20MHz speed grade and "/SO" specifies the 18-SOIC 7.50mm-width surface-mount form factor. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data RAM, and a set of peripheral interfaces on one die. Within the taxonomy MCU -> microcontrollers -> microprocessors -> semiconductors, the PIC16CE62X belongs to the OTP/EPROM-based mid-range PIC family that targets cost-sensitive embedded control. The on-chip EEPROM data memory distinguishes this family from mask-ROM-only predecessors by allowing non-volatile user data to be read and written during normal operation without external storage chips. Key features include 13 I/O pins, 35 single-cycle instructions (200ns per instruction at 20MHz, except program branches which take two cycles), a wide 3.0V to 5.5V supply range, an internal oscillator option, a 16-bit timer/counter, an 8-bit timer/counter, a capture/compare/PWM (CCP) module, a 10-bit ADC-less analog comparator, and a programmable watchdog timer with on-chip RC oscillator. The 18-SOIC package measures 0.295 inch (7.50mm) body width and is compatible with standard surface-mount assembly lines. Architecturally, the device uses a Harvard-style RISC core with separate program and data buses. The 14-bit instruction word provides more opcode space than 8-bit cores, enabling single-word instructions and a compact code footprint of 3.5KB. The internal EEPROM is byte-accessible through dedicated SFRs and supports up to 1M erase/write cycles per datasheet figures from the family reference manual. Typical applications include low-power consumer appliances, automotive body electronics, industrial sensor conditioning, and any embedded design requiring a small OTP MCU with on-chip non-volatile data. The 8-bit core keeps the BOM cost lower than 32-bit alternatives while providing sufficient performance for PID loops, keypad scanning, and simple state machines. When designing with this part, note that OTP means the program memory can be written only once - if firmware updates are required in the field, select a Flash-based PIC16F equivalent instead. For new designs, consider the pin-compatible PIC16F628A which adds flash memory while retaining the same 18-pin footprint. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16CE625T-20E/SS

PIC16CE625T-20E/SS - 8-bit 20MHz OTP MCU, 3.5KB Flash, 20-SSOP | Microchip

The Microchip Technology PIC16CE625T-20E/SS is an 8-bit PIC microcontroller from the PIC16C family, featuring a 20 MHz maximum clock speed and housed in a 20-pin SSOP surface-mount package. It integrates 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of data RAM, and 128 bytes of EEPROM for non-volatile data storage. The device operates across a supply voltage range of 3.0 V to 5.5 V and provides 13 general-purpose digital I/O pins. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral set into one IC. Within the broader semiconductor taxonomy, MCUs belong to the logic / embedded-controller family and sit under microcontrollers in the Integrated Circuits hierarchy. The PIC16C series specifically uses a Harvard-architecture RISC core with separate program and data buses, which enables deterministic single-cycle instruction execution - useful in real-time control applications. Key features of the PIC16CE625T-20E/SS include integrated Brown-out Detect/Reset, Power-On Reset (POR), and a Watchdog Timer (WDT) for robust operation in noisy or battery-powered environments. The 128-byte on-chip EEPROM allows application parameters and calibration data to be retained without external storage. The wide 3.0 V to 5.5 V operating range supports both 3.3 V and 5 V system designs, and the -40 °C to +125 °C extended temperature range (per the 'E' suffix) suits industrial-grade deployments. Architecturally, the PIC16CE625 uses Microchip's enhanced 14-bit instruction set, allowing each instruction word to encode both opcode and literal data. The OTP program memory is one-time programmable - once a bit is programmed it cannot be erased - which makes the device cost-optimized for high-volume production where firmware is final. Internal oscillator options and a programmable prescaler reduce external component count. Typical applications for the PIC16CE625T-20E/SS include appliance controllers, sensor signal conditioning, LED lighting drivers, automotive body electronics subsystems, industrial control modules, and battery-charging controllers. Its combination of EEPROM, watchdog, and brown-out reset makes it well suited to any unattended embedded application that must survive power disturbances. When designing with this MCU, remember that OTP memory cannot be reprogrammed in-circuit - prototype firmware should first be developed on a windowed or flash-based sibling (such as the PIC16F62x family) before committing to OTP for production. Always allocate the watchdog timer and brown-out reset thresholds to match system worst-case timing requirements. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes beyond what the manufacturer datasheet alone provides.

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PIC16CE625T-20I/SS

PIC16CE625T-20I/SS - 20MHz 8-bit OTP MCU w/EEPROM | Microchip

The Microchip PIC16CE625T-20I/SS is an 8-bit CMOS OTP-based microcontroller in the PIC16CE62X family that integrates 128 bytes of EEPROM data memory alongside the program store. It operates from a 3V to 5.5V supply and supports up to a 20 MHz external clock input with 200 ns instruction cycle execution (133 ns minimum, conditional). The part ships in a 20-pin SSOP (5.30 mm body) package and is delivered on tape-and-reel as the -20I/SS suffix indicates, with the 'I' denoting the -40C to +85C industrial temperature grade. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, peripherals and I/O on one silicon die. In the broader embedded taxonomy, this device sits under: MCU -> 8-bit microcontroller -> Harvard-architecture MCU -> CMOS RISC MCU -> PIC16C-family mid-range core. The 'CE' suffix in the part number signals Microchip's EPROM program memory variant with integrated EEPROM, intended for prototyping and low-volume production prior to mask-ROM conversion. Key differentiating features include 3.5 KB of one-time-programmable (OTP) program memory, 128 bytes of RAM, 13 general-purpose digital I/O pins sharing 18/20-pin packages, and on-chip peripherals such as Brown-out Detect (BOD), Power-On Reset (POR), Watchdog Timer (WDT), an 8-bit timer/counter, and an analog comparator. The Harvard RISC core offers only 35 single-word instructions, a 2-cycle branch, and a hardware interrupt controller, giving the part its reputation for fast context-switch responsiveness. Architecture depth: the PIC16CE62X uses Microchip's mid-range 14-bit instruction word, an 8-level stack and 8-bit data path. The integrated comparator with programmable reference, plus the EPROM-based code store, makes this generation ideal for designs where in-system re-programmability was not yet mandatory but field-configurable trim and data logging via the on-die EEPROM were required. Typical applications include consumer appliance controllers, sensor signal conditioning front-ends (paired with the on-chip comparator), low-cost PWM-driven LED or motor control, and industrial keypad/IO expansion modules. The 18/20-pin SSOP/SOIC footprint also makes it a drop-in candidate for legacy designs originally built on PIC16C62x mask-ROM parts. When designing with this part, note that OTP requires one-time UV-erase-and-reprogram at the device programmer; for in-application firmware updates, migrate to the PIC16F62x flash-based family.

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PIC16CE625T-30/SO

PIC16CE625T-30/SO - 8-bit OTP MCU 3.5KB w/ EEPROM, 18-SOIC | Microchip

The Microchip Technology PIC16CE625T-30/SO is an 8-bit PICmicro CMOS microcontroller with 3.5 KB (2K x 14) One-Time Programmable (OTP) program memory, 128 bytes of RAM, integrated EEPROM data memory, and a 30 MHz internal oscillator, housed in an 18-pin SOIC package delivered on Tape & Reel. An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, program memory (ROM/Flash/OTP), working RAM, and peripherals (timers, ADC, comparators, I/O) on one die. The PIC16CE62X family belongs to the PIC16 mid-range architecture and sits inside the broader hierarchy: MCU -> microcontroller -> embedded processor -> semiconductor. The unique value of the PIC16CE62X line is the addition of on-chip serial EEPROM data memory alongside OTP program memory, letting designers store calibration data, configuration settings, and runtime parameters without an external EEPROM chip. Key features of the PIC16CE625 include 13 digital I/O pins, a precision analog comparator, one 8-bit timer/counter and one 16-bit timer/counter (Timer0/Timer1), a watchdog timer with dedicated on-chip RC oscillator, and an internal 4 MHz RC oscillator that can be software-configured to 30 MHz. The integrated EEPROM typically provides 128 bytes of non-volatile data storage, while the OTP program memory holds the application firmware. Power-saving features include SLEEP mode, programmable brown-out reset (BOR), and a wide operating voltage range of 2.5 V to 6.0 V. Architecturally, the PIC16CE625 uses a Harvard RISC core with separate program and data buses, 35 single-word instructions, and a 14-bit instruction word. The CMOS process delivers low operating current and industrial temperature range support (-40C to +85C for the E suffix; 0C to +70C for the standard part), enabling deployment in noisy electrical environments. Typical applications include low-cost consumer electronics, remote-control transmitters, sensor signal-conditioning front-ends with on-board calibration storage, small motor control, security keypads, and battery-powered devices. The integrated comparator allows threshold detection and battery-voltage monitoring without external analog components. Design with the in-circuit serial programming (ICSP) interface for OTP programming in production; OTP memory cannot be electrically erased, so a one-time-programmed device is the final form. Designers who require reprogrammability during prototyping should evaluate PIC16F62X flash variants as an alternative.

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PIC16CE625T-30/SS

PIC16CE625T-30/SS - 8-bit OTP MCU, 3.5KB EPROM, 128B RAM | Microchip

The Microchip Technology PIC16CE625T-30/SS is an 8-bit CMOS microcontroller with 3.5KB one-time-programmable (OTP) program memory, 128 bytes of RAM, and integrated EEPROM data memory, housed in a 20-pin SSOP package. It is a member of the PIC16CE62X family of low-cost, high-performance, fully-static microcontrollers, operates at up to 30 MHz (30 in the suffix), and includes an internal voltage reference plus analog comparator peripherals. An 8-bit OTP microcontroller is a single-chip computer built around an 8-bit data path whose program memory is one-time programmable (the cell can be written once and thereafter behaves as ROM). Such MCUs sit in the broader taxonomy of microcontrollers -> embedded processors -> semiconductors. Compared with flash-based MCUs, OTP variants typically offer lower unit cost for high-volume consumer products but require full-firmware commitment before wafer packaging. EEPROM-backed data memory makes the PIC16CE625 well suited to applications that must store calibration values, user settings, or runtime counters without external storage. Key features of the PIC16CE625T-30/SS include a 13-bit instruction set running at up to 30 MHz, 13 digital I/O pins, an internal 4 MHz RC oscillator, two analog comparators with programmable reference, a 5-channel 8-bit ADC, two 8-bit timers (Timer0 and Timer2) plus one 16-bit timer (Timer1), and a synchronous serial port (SSP) supporting SPI and I2C. The integrated 128-byte EEPROM is rated for one million erase/write cycles, supporting persistent parameter storage in the field. Architecturally, the PIC16CE625 uses a RISC-like Harvard core with separate program and data buses, a hardware multiplier-free ALU, and 14-bit wide instructions. The 30 MHz oscillator input drives a four-phase clock generator and the in-circuit debug-friendly ICSP interface, and brown-out detect plus power-on reset are integrated. A wide operating voltage range of 3.0 V to 5.5 V supports both battery and regulated 5 V rails. Typical applications include appliance control panels, consumer remote controls, low-end sensor signal conditioning, security keypads, and small appliance timer modules. The internal comparator and voltage reference allow direct thermistor or other resistive-sensor interfacing without an external op-amp. Designers choose this part when program memory is fixed late in development, BOM cost is critical, and a small handful of digital I/O plus EEPROM storage is sufficient. When designing with this device, plan OTP programming logistics early: once programmed, the silicon cannot be rewritten, so test firmware should be on a flash-based equivalent (for example PIC16F627) until the production image is frozen. Decoupling must include a 100 nF ceramic capacitor placed within 5 mm of VDD and a 10 uF bulk capacitor on the supply rail. The MCLR pin requires a 10 kohm pull-up to VDD unless the internal reset is enabled in the configuration word. This page synthesizes distributor pricing, same-family alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single decision-ready reference.

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PIC16CR73-I/SO

PIC16CR73-I/SO - 7KB ROM 8-Bit MCU 20MHz 28-SOIC | Microchip

The Microchip Technology PIC16CR73-I/SO is an 8-bit CMOS ROM-based microcontroller featuring 7KB of program memory (4K x 14 words), 192 bytes of RAM, and 22 digital I/O pins, housed in a 28-pin SOIC package. It operates at up to 20MHz from a 2.5V-5.5V supply, integrates a 10-bit multi-channel ADC, USART, SPI, and I2C peripherals, and is built on the PIC16C mid-range architecture with a 14-bit instruction set. As a "CR" ROM-based variant of the PIC16C/16F73 family, it is intended for high-volume production designs where the program code is factory-masked. An 8-bit ROM microcontroller (MCU) is a single-chip computer with mask-programmed read-only memory, designed for cost-sensitive, high-volume embedded applications where the firmware is finalized at the time of order. It belongs to the hierarchy: microcontroller -> embedded processor -> semiconductor IC. Unlike flash-based parts such as the PIC16F73, the PIC16CR73 cannot be reprogrammed in-circuit, which reduces per-unit cost but eliminates field-upgrade flexibility. The mid-range PIC16 core executes most instructions in a single 200ns cycle at 20MHz and includes a hardware multiplier, interrupts, and a watchdog timer. Key specifications include: 7KB (4K x 14) program ROM, 192 bytes of data RAM, 22 I/O pins with individual direction control, five 10-bit ADC channels, USART/SPI/I2C serial interfaces, two 8-bit timers and one 16-bit timer, 14-bit instruction word, 20MHz maximum clock, and an industrial -40C to +85C operating temperature range. Brown-out reset, power-on reset, watchdog timer with on-chip RC oscillator, and code protection are all integrated. The 28-SOIC (SO) package measures 7.50mm body width with 1.27mm pin pitch for hand-solder-friendly through-hole-compatible surface-mount assembly. Typical applications include consumer appliance controls, industrial sensor interfaces, low-cost motor control, automotive body electronics, and embedded data acquisition where the firmware is stable and final. The PIC16CR73-I/SO is particularly useful in designs migrating from PIC16C73 to flash-based PIC16F73 while maintaining the same SOIC footprint and pinout, or in long-life products where field firmware updates are unnecessary. The part is supplied in tape-and-reel packaging for automated SMT assembly lines.

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PIC16CR73-I/SS

PIC16CR73-I/SS - 8-bit CMOS ROM MCU, 7KB ROM, 20MHz | Microchip

The Microchip Technology PIC16CR73-I/SS is an 8-bit CMOS ROM-based microcontroller with 7KB of one-time-programmable ROM, 192 bytes of RAM, and 22 digital I/O lines, housed in a 28-pin SSOP (Shrink Small Outline Package) with industrial temperature grade (-40C to +85C). It executes instructions at a 20 MHz clock with a 200 ns instruction cycle using a RISC architecture of 35 single-word instructions. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and peripheral interfaces into one package, used to sense, control, and actuate embedded systems. PIC microcontrollers sit within the 8-bit microcontroller taxonomy, alongside AVR and 8051 architectures, and are widely used for cost-sensitive, low-power, deterministic control tasks where bit-level I/O and interrupt latency dominate design decisions. Key features of the PIC16CR73-I/SS include five 8-bit I/O ports (PORTA-PORTE), a 10-bit multi-channel Analog-to-Digital Converter (ADC) module, two 8-bit Timer/Counter modules and one 16-bit Timer/Counter module, a Universal Synchronous Asynchronous Receiver Transmitter (USART/SCI) port, and a Master Synchronous Serial Port (SSP) supporting SPI and I2C. The device also integrates a watchdog timer with its own on-chip RC oscillator for failsafe operation, brown-out reset circuitry, and in-circuit serial programming (ICSP) for field updates. The PIC16CR73 family uses a Harvard bus architecture that separates program and data memory paths, enabling instruction fetch and operand access in the same cycle. The 14-bit instruction word yields compact code density, and the ROM-based (CR) variant is targeted at low-cost, mature-product production runs where flash reprogramming is not required. Typical applications include industrial automation control nodes, sensor signal conditioning interfaces, HVAC actuator drivers, automotive body electronics subsystems, consumer appliance controllers, and embedded serial communication bridges where deterministic timing and small footprint matter more than large memory. When designing with the PIC16CR73-I/SS, ensure the watchdog timer is either enabled in software or disabled by configuration bits to prevent unwanted resets. Use the ICSP interface pins (RB6/RB7) for in-circuit programming, reserving them from general I/O to avoid contention. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes drawn from manufacturer datasheets and verified web data, providing information that goes beyond any single source datasheet.

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PIC16CR73T-I/ML

PIC16CR73T-I/ML - 7KB ROM 8-Bit MCU 28-VQFN | Microchip

The Microchip Technology PIC16CR73T-I/ML is an 8-bit CMOS ROM microcontroller with 7KB program memory and 192 bytes of RAM, packaged in a 28-pin VQFN (ML) package with exposed pad. Operating from 2.5V to 5.5V and supporting up to 20MHz clock, this member of the PIC16C7x family is designed for embedded control in industrial, automotive, and consumer applications. An 8-bit microcontroller (MCU) is a self-contained computing device integrating a CPU, RAM, ROM/Flash, timers, ADC, and digital I/O on a single silicon die. The PIC16C7x family uses Microchip's enhanced RISC architecture with a modified Harvard memory layout, executing one instruction per clock cycle (except branches) for predictable deterministic timing. The PIC16CR73 specifically targets cost-sensitive ROM-based high-volume designs, where the program image is mask-programmed at the factory and cannot be field-updated. The 'R' suffix distinguishes ROM parts from the flash-based PIC16F73, while 'C' indicates the CMOS process family. Key features include 22 digital I/O pins, three timers (Timer0, Timer1, Timer2), a 5-channel 8-bit ADC, USART with 9-bit address detection, I2C/SPI master-slave synchronous port, and a 200ns instruction cycle at 20MHz. Capture/Compare/PWM (CCP) module provides 10-bit PWM output for motor and lighting control, while the watchdog timer with on-chip RC oscillator enhances system reliability without external components. The architecture is built on Microchip's mature CMOS process with low-power nanopower variants. The Harvard split-bus design allows simultaneous instruction fetch and data access, and the 14-bit instruction word provides rich addressing with 35 single-word instructions. The device supports in-circuit serial programming (ICSP) for factory ROM variants and offers robust EMI/ESD performance typical of PIC mid-range devices. Typical applications include industrial control panels, HVAC blower controllers, appliance user-interface boards, automotive body controllers, battery chargers, and sensor-conditioning front ends. The wide 2.5V to 5.5V operating range suits both 3.3V and 5V system rails, and the ROM-based architecture fits high-volume products where the firmware is stable and unit cost is critical. When designing with the PIC16CR73T-I/ML, ensure the exposed pad of the 28-VQFN package is soldered to a sufficient copper thermal pour (at least 1 sq inch) to maintain junction temperature within the -40C to +85C industrial range. Because this is a ROM part, firmware changes require a new mask spin, so use the flash-based PIC16F73T-I/ML for prototype development and switch to the CR73 only after firmware is locked. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16CR73T-I/SO

PIC16CR73T-I/SO - 7KB ROM 8-Bit MCU 20MHz 28-SOIC | Microchip

The Microchip Technology PIC16CR73T-I/SO is an 8-bit CMOS ROM-based microcontroller in the PIC16C family, featuring 7KB of program memory (4K x 14 words), 192 bytes of RAM, and 22 digital I/O lines, all operating from a 20 MHz internal clock in a 28-pin SOIC (SO) wide-body package. The "CR" suffix designates a one-time-programmable (OTP) ROM variant intended for high-volume, cost-sensitive embedded applications, while the "T" suffix indicates Tape and Reel packaging and the "I" suffix denotes the industrial -40C to +85C operating temperature range. The wide SOIC 0.295-inch (7.50 mm) body supports standard surface-mount assembly and easy hand-soldering during prototyping. A PIC microcontroller is a compact, low-power, RISC-architecture computer-on-a-chip that integrates a CPU core, non-volatile program memory, working RAM, peripheral modules, and general-purpose I/O into a single silicon die. PIC microcontrollers sit within the broader hierarchy of embedded microcontrollers (MCU) -> microprocessor -> semiconductor device, and the PIC16 family specifically targets mid-range 8-bit applications with 14-bit instruction words, between the baseline PIC10/12/16 families and the high-performance PIC18 and dsPIC families. Key features of the PIC16CR73T-I/SO include five 8-bit I/O ports supporting bidirectional digital I/O, a 20 MHz maximum operating frequency yielding 200 ns instruction cycle time, an integrated power-on reset and brown-out detector, a watchdog timer with its own on-chip RC oscillator, two 8-bit timers plus one 16-bit timer with capture/compare/PWM capability, a 5-channel 8-bit analog-to-digital converter (ADC), a universal synchronous/asynchronous receiver-transmitter (USART) for serial communications, and a synchronous serial port (SSP) supporting SPI and I2C master/slave modes. The part draws typically under 2 mA active at 5 V / 4 MHz. The PIC16CR73 implements a Harvard architecture with separate program and data buses, allowing instruction fetch and operand access to overlap for efficient pipelined execution. The 14-bit wide instruction word supports 35 single-word single-cycle instructions plus immediate, literal, and relative addressing modes. The integrated ADC, USART, and SSP peripherals remove the need for external interface chips in most sensing, motor-control, and human-interface designs. Typical applications include industrial control panels, appliance controllers, automotive body electronics, low-end sensor interface nodes, simple user-interface boards with pushbuttons and LED indicators, and battery-powered measurement instruments. Because this is a ROM (mask/one-time programmable) variant, it is most appropriate for high-volume products where firmware has been finalized and a Flash-based PIC16F equivalent is not required. When designing with this device, note that the wide-body 28-SOIC footprint requires the standard 1.27 mm pitch SO land pattern. Use a low-ESR decoupling capacitor (100 nF ceramic) within 5 mm of each VDD/VSS pair, and reserve the MCLR pin for in-circuit serial programming via ICSP. Industrial -40C to +85C operation is guaranteed by the "I" suffix. This page combines distributor inventory checks, parametric cross-reference search results, and a drop-in alternatives analysis tailored to the PIC16CR73T-I/SO - information not packaged together in any single source.

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PIC16CR73T-I/SS

PIC16CR73T-I/SS - 8-Bit CMOS ROM MCU, 7KB, 28-SSOP | Microchip

The Microchip PIC16CR73T-I/SS is an 8-bit CMOS ROM-based microcontroller featuring 7KB of program memory, 192 bytes of RAM, and 22 digital I/O lines, housed in a 28-pin SSOP (Shrink Small Outline Package). It is part of the PIC16C7x mid-range microcontroller family, designed for embedded control applications requiring deterministic performance, low power consumption, and rich peripheral integration including ADC, USART, MSSP (SPI/I2C), and capture/compare/PWM modules. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (ROM/RAM), and peripherals on one die. Within the taxonomy, an 8-bit MCU sits below 16-bit and 32-bit MCUs in computational throughput, but above simple logic controllers in flexibility. The PIC16CR73T is a member of Microchip's mid-range PIC16 family, which uses a 14-bit instruction word and Harvard architecture with separate program and data buses. The 'CR' suffix denotes a ROM-based variant (factory-programmed, not field-reprogrammable), and the '73' designation places it in the PIC16C7x sub-family that adds a 10-bit analog-to-digital converter and enhanced peripherals. Key differentiating features of the PIC16CR73T-I/SS include 7KB of one-time-programmable (mask ROM) program memory, 192 bytes of data RAM, 22 I/O pins capable of driving LED loads directly, three timer modules (Timer0, Timer1, Timer2), a 10-bit multi-channel ADC with up to 8 input channels, a USART for serial communication, an MSSP module supporting both SPI and I2C protocols, and dual capture/compare/PWM modules for motor and signal control. The device operates across an industrial temperature range of -40C to +85C and supports DC supply voltages of 2.5V to 6.0V. Architecturally, the PIC16CR73T employs Microchip's enhanced mid-range core with a 14-bit instruction set, hardware stack, and instruction pipelining that allows most instructions to execute in a single 200ns instruction cycle at 20MHz oscillator. The Harvard architecture separates program and data memory spaces, eliminating bus contention and improving throughput compared to von Neumann designs. Power management features include Sleep mode with wake-up on interrupt, a watchdog timer with on-chip RC oscillator for reliable operation, and selectable oscillator options including RC, XT, HS, and LP modes. Typical applications for the PIC16CR73T-I/SS include industrial automation controllers, HVAC control boards, automotive body electronics, appliance control panels, sensor signal conditioning, motor control for small DC and stepper motors, and battery-powered instrumentation. The PIC16CR7x family was historically popular in 1990s-2000s designs but has since been largely superseded by flash-based mid-range PIC16F7x and PIC18 devices for new designs. When designing with this device, note that the 'CR' suffix indicates ROM-only program memory - firmware must be committed during manufacturing (mask ROM), which requires high-volume production to be cost-effective. For prototypes and low-volume designs, the flash-based PIC16F73-I/SS is the pin-compatible drop-in alternative.

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PIC16CR74-I/ML

PIC16CR74-I/ML - 8-bit 7KB ROM MCU, 20MHz, QFN-44 | Microchip

The Microchip Technology PIC16CR74-I/ML is a 20 MHz, 8-bit CMOS ROM-based microcontroller with a 7 KB program memory (4K x 14), 192 bytes of RAM, and a 12-channel 8-bit Analog-to-Digital Converter, packaged in a 44-pin QFN (ML) surface-mount format. It belongs to the PIC16C7X mid-range family of Microchip microcontrollers and uses the 'R' ROM (mask-programmed) program-memory variant suitable for high-volume production where code is fixed at the factory. What is a microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and a set of peripheral blocks such as timers, communication ports, and analog inputs. Within the broader category, the PIC16CR74 falls into the 8-bit MCU segment (PIC16 mid-range family -> 8-bit RISC MCU -> microcontroller -> embedded computing IC), making it appropriate for deterministic real-time control rather than high-throughput digital signal processing. Key features of the PIC16CR74-I/ML include 33 single-word instructions, a 14-bit instruction word, a 20 MHz oscillator giving 5 MIPS throughput, three timers (Timer0/Timer1/Timer2), a Capture/Compare/PWM (CCP) module, a USART, an SPI/I2C MSSP port, two analog comparators, and a brown-out reset. The integrated 12-channel 8-bit ADC simplifies mixed-signal designs by eliminating an external converter. The 44-pin QFN (ML) package is a low-profile surface-mount option for space-constrained boards. Architecturally, the device uses a Harvard-style RISC core with separate program and data buses, which allows most instructions to complete in a single instruction cycle and gives predictable interrupt latency for real-time control loops. The ROM program-memory variant is selected when firmware is fully frozen and the design is moving to high-volume mask-ROM production. Typical applications include industrial control, sensor conditioning with on-chip ADC, small appliances, automotive body controllers, and embedded instrumentation. The wide operating voltage range of 2.5 V to 6.0 V and the industrial temperature grade (-40C to +85C for the 'I' suffix) make it well suited to factory-floor and automotive cabin environments. When designing with this part, plan the I/O pin map carefully against the QFN-44 land pattern and ensure programming tooling is available for the ROM variant (mask ROM requires an NRE charge and minimum order quantity). Verify brown-out and watchdog timer settings in the configuration word. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not collected in any single place on the manufacturer datasheet.

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PIC16CR74-I/P

PIC16CR74-I/P - 8-Bit ROM MCU, 7KB ROM, 20MHz, 40-DIP | Microchip

The Microchip Technology PIC16CR74-I/P is an 8-bit CMOS ROM-based microcontroller from the PIC16C7X family, featuring 7KB of on-chip ROM program memory (4K x 14), 192 bytes of RAM, 33 digital I/O pins, and a maximum clock speed of 20 MHz, housed in a 40-pin through-hole PDIP package. It is part of the PIC® 16C series mid-range family that established the RISC architecture standard for embedded microcontrollers in the 1990s and remains a reference design for legacy industrial and educational systems. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral interfaces. The PIC architecture uses a Harvard design with a separate program and data bus, which allows instruction fetch and operand read to occur in the same cycle. Within the broader taxonomy, this part is a ROM-based MCU (mask-ROM programmed at the factory) - the lowest-cost variant of the PIC mid-range line, intended for high-volume production where OTP/Flash reprogrammability is not required. Key features include a RISC instruction set with only 35 single-word instructions, 14-bit wide instruction word, 8-bit data path, an integrated analog comparator, capture/compare/PWM (CCP) module, synchronous serial port (SSP) supporting SPI and I2C, USART for asynchronous serial communication, and a 10-bit ADC with up to 8 input channels. The industrial temperature grade (-40C to +85C) and 5V operation make it suitable for factory-floor equipment. Technical depth: the PIC16CR74 uses a 2-stage pipeline with an 8-level deep hardware stack and executes one instruction per instruction cycle (4 clock periods). At 20 MHz this yields 5 MIPS throughput. The ROM variant cannot be reprogrammed - the program is masked into the silicon at wafer fab - making the part low-cost but unsuitable for development or low-volume production, where PIC16F74 (Flash) or PIC16C74 (OTP/EPROM) siblings are preferred. Typical applications include industrial control logic boards, appliance controllers, automotive body electronics (pre-CAN era), HVAC control panels, instrumentation front-ends, and educational microcontroller labs. The wide I/O count (33 pins) supports direct connection to keypads, LED displays, and relay drivers. Design consideration: when migrating a design from PIC16CR74 to Flash-based siblings, verify that the ROM-stored calibration constants (if any) and interrupt vector behavior match. The PIC16CR74 lacks the in-circuit debugger (ICD) interface of later PIC16F parts, so emulator or ICE tools are required for firmware bring-up. This page synthesizes distributor pricing snapshots, a curated drop-in alternative list drawn from the same PIC16C7X family, and practical design notes that complement the official Microchip datasheet - a working reference for engineers maintaining legacy PIC mid-range designs.

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PIC16CR74T-I/ML

PIC16CR74T-I/ML - 8-Bit PIC MCU, 7KB ROM, 44-VQFN | Microchip

The Microchip Technology PIC16CR74T-I/ML is an 8-bit RISC microcontroller from the PIC® 16C family, offering 7 KB of ROM (4K × 14 words), 192 bytes of RAM, and 33 digital I/O pins in a 44-pin VQFN (ML) package with exposed thermal pad. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripheral interfaces on one die. The PIC family follows a RISC (Reduced Instruction Computer) architecture with a Harvard memory layout, where program and data memory use separate buses for predictable, deterministic instruction timing. PIC microcontrollers occupy the broader hierarchy of microcontroller -> embedded controller -> semiconductor IC, and the PIC16C sub-family in particular is positioned for general-purpose 8-bit embedded control with rich I/O and analog integration. Key features include 7 KB on-chip ROM for firmware storage, 192 bytes of data RAM, 33 I/O lines supporting digital and analog functions, an integrated analog-to-digital converter, and operation up to 20 MHz from a wide 2.0 V to 6.0 V supply. The VQFN-44 (ML) 8×8 mm package with an exposed pad enables a low thermal resistance path and a compact PCB footprint suitable for space-constrained designs. The 'R' suffix in PIC16CR74 denotes a ROM-based device, while 'T' indicates tape-and-reel packaging and 'I' denotes the industrial temperature grade. Technically, the device uses a 14-bit instruction word with a 35-instruction set, single-cycle instruction execution except for program branches, and an 8-level deep hardware stack. Peripherals include Capture/Compare/PWM (CCP) modules, a synchronous serial port (SSP) configurable for SPI or I²C, a USART, and an 8-channel 8-bit ADC, providing a complete control platform for embedded designs. Typical applications include industrial control systems, automotive body electronics, sensor signal acquisition, motor control interfaces, and home appliance control boards. The wide operating voltage range and industrial-grade temperature tolerance make it well suited to harsh electrical environments. When designing with this part, ensure the ROM-programmed variant matches your firmware - ROM parts cannot be reprogrammed in-circuit, so the code must be factory-masked. For field-upgradable designs, choose the Flash-based PIC16F74 equivalent in the same package.

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PIC16CR74T-I/PT

PIC16CR74T-I/PT - 8-bit PIC MCU, 7KB ROM, 192 RAM, 44-TQFP | Microchip

The Microchip Technology PIC16CR74T-I/PT is a ROM-based 8-bit PIC16C microcontroller featuring 7KB of program memory, 192 bytes of RAM, and 33 digital I/O pins, housed in a 44-pin TQFP (PT) package supplied on tape and reel. Built around Microchip's enhanced mid-range RISC architecture, it executes most instructions in a single 200 ns instruction cycle at 20 MHz, delivering up to 5 MIPS of throughput. The 'CR' prefix denotes a one-time-programmable (OTP) ROM device intended for cost-sensitive high-volume production, while the -I/ suffix indicates the industrial temperature grade of -40C to +85C. A PIC microcontroller (Programmable Interface Controller) is a compact 8-bit RISC processor family originated by Microchip in 1975 that integrates CPU core, non-volatile program memory, data RAM, EEPROM (on F variants), timers, ADC, and serial peripherals on a single die. PIC16CR parts sit in the hierarchy PIC16C -> PIC16F -> PIC18 -> dsPIC33 within Microchip's 8-bit/16-bit portfolio, and target embedded control tasks that require deterministic timing, low cost, and minimal external components. The 'CR' sub-family specifically trades reprogrammability for lower per-unit cost in mature designs. Key features of the PIC16CR74T-I/PT include five 8-bit I/O ports (PORTA-PORTE) giving 33 usable I/O lines, a 10-bit multi-channel Analog-to-Digital Converter, two 8-bit timers plus one 16-bit timer, a USART module for asynchronous/synchronous serial communication, an SSP module for SPI and I2C peripherals, and a Capture/Compare/PWM (CCP) module. The device operates from 2.5 V to 6.0 V across the industrial temperature range. Brown-out Reset, Power-on Reset, and a Watchdog Timer with its own on-chip RC oscillator enhance reliability in noisy industrial environments. Typical applications include industrial automation controllers, HVAC control boards, security and access control panels, consumer appliance controls, automotive body and chassis subsystems (non-safety), and small-format human-machine interface (HMI) panels where its 33 I/O and 7 KB of code memory easily fit motor-control, sensor-interface, and UI-handling tasks in a single chip. When designing with this part, always validate the ROM-programmed code image with Microchip's MPLAB PM3 programmer before committing to high-volume production, and budget for the 44-pin TQFP's 0.8 mm lead pitch which requires standard reflow profiles.

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PIC16CR76-I/ML

PIC16CR76-I/ML - 8-Bit 14KB ROM MCU 28-QFN | Microchip

The Microchip Technology PIC16CR76-I/ML is an 8-bit RISC microcontroller featuring 14KB of one-time-programmable (ROM) program memory, 368 bytes of RAM, and a 256-byte EEPROM data region, housed in a 28-pin QFN (ML) package. It belongs to the PIC16C7X mid-range family with an industrial temperature grade (-40C to +85C) and is targeted at cost-sensitive embedded designs requiring masked-ROM firmware. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, RAM, peripherals and I/O on one die. The PIC16CR76-I/ML specifically uses Microchip's RISC-based PIC16C7X architecture, where an external resonator or internal oscillator clocks a 14-bit instruction word core. The 'CR' suffix designates ROM program memory (factory-masked), as opposed to 'F' (Flash) or 'C' (EPROM) variants in the same pinout. 8-bit MCUs sit at the base of the embedded hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. Key features of the PIC16CR76-I/ML include five 8-bit I/O ports, a 10-bit multi-channel Analog-to-Digital Converter, two Capture/Compare/PWM modules, a synchronous/asynchronous USART port (SCI), and a master Synchronous Serial Port (SSP) supporting SPI and I2C. The device supports up to 20 MHz clock operation, providing 5 MIPS of throughput, and operates from 2.5V to 5.5V. Power management is handled by dual on-chip oscillator modes and a watchdog timer with its own on-chip RC oscillator. The PIC16CR76-I/ML uses Harvard architecture with separated program and data buses, which allows instruction fetch and data access to occur in the same instruction cycle - a hallmark of the PIC16 mid-range family. Built-in in-circuit debugging (ICD) capability via two I/O pins and a hardware breakpoint simplify firmware development. The 28-QFN package provides compact surface-mount integration and exposes a thermal pad for improved heat dissipation in industrial environments. Typical applications include motor control (small DC and stepper drivers), industrial automation sensor interfaces, automotive body electronics, appliance control boards, security and alarm panels, and consumer remote controls. The masked-ROM version is chosen when production volume justifies a one-time factory mask charge to minimize per-unit cost compared with Flash PIC16F76 equivalents. Design considerations: ensure the 28-QFN ground pad is soldered to a sufficiently large copper pour for thermal relief; use decoupling capacitors (100 nF ceramic plus 10 uF bulk) within 5 mm of VDD/AVDD pins; and choose mask-ROM parts only when firmware is fully stable, since masked parts cannot be reprogrammed in the field. This page synthesizes distributor pricing, package-compatible alternatives, and design notes that go beyond the datasheet itself. This page synthesizes distributor pricing, drop-in PIC16F76 Flash equivalents, and practical design notes not found in the manufacturer datasheet, helping procurement and firmware teams evaluate the PIC16CR76-I/ML in context.

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PIC16CR76-I/SO

PIC16CR76-I/SO - 8-Bit CMOS ROM MCU, 14KB, 20MHz | Microchip

The Microchip PIC16CR76-I/SO is an 8-bit CMOS ROM-based microcontroller in the PIC16C family, offering 14KB (8K x 14) of program memory and 368 x 8 bytes of RAM, packaged in a 28-pin SOIC (7.50 mm width / 0.295 inch). It executes instructions at 200 ns (5V) and supports up to 22 I/O pins with peripheral features including a 10-bit A/D converter, SPI/I2C/USART, capture/compare/PWM and two 8-bit timers. Background: A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (ROM/Flash), working memory (RAM), and integrated peripherals such as timers, communication interfaces, and analog blocks. The PIC16C family is Microchip's mid-range 8-bit architecture, sitting between the baseline PIC10/14/16 and the enhanced PIC17/18 families. PIC microcontrollers use a Harvard RISC architecture with 35 single-word instructions, an accumulator-based ALU, and a small fixed instruction set that delivers predictable timing, easy code migration across family members, and strong compiler support. Key features of the PIC16CR76-I/SO include a wide 2.0V to 5.5V operating range, low-power operation with brown-out detection, an internal/external oscillator option, in-circuit serial programming (ICSP), and a programmable code-protection scheme. The 'CR' suffix indicates mask-ROM program memory (factory programmed), which differs from the flash-based 'F' variant. Industrial-grade (-I) temperature range is -40C to +85C. The device architecture combines an 8-bit ALU with a 14-bit instruction word, providing compact code density and deterministic execution. Its enhanced mid-range core supports hardware multiply, prioritized interrupts, and direct/indirect addressing modes for both program and data memory, enabling efficient C and assembly code generation. Typical applications include industrial control, instrumentation, sensor interfacing, motor control signal sequencing, low-cost embedded consumer products, and educational/development platforms. The mask-ROM variant suits high-volume production where the firmware is final and cost-per-unit matters more than field re-programmability. When designing with the PIC16CR76-I/SO, verify that the mask-ROM variant matches your production strategy. For prototypes or low-volume builds, prefer the PIC16F76 (Flash) which provides identical peripherals and pinout. Use MPLAB X IDE with MPASM or XC8 compilers, and the PICkit 3/4 or ICD programmer for in-circuit debugging. This page synthesizes distributor pricing, drop-in PIC16 family alternatives, and practical design notes - combining manufacturer datasheet parameters with engineering guidance not typically bundled on a single product page.

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PIC16CR76-I/SS

PIC16CR76-I/SS - 14KB ROM 8-bit MCU 28-SSOP | Microchip

The Microchip Technology PIC16CR76-I/SS is a member of the PIC16C/CR 8-bit CMOS ROM microcontroller family, integrating 14KB of one-time programmable read-only memory (8K x 14 words) into a 28-pin Shrink Small Outline Package (SSOP). The device operates at a maximum clock frequency of 20 MHz and is rated for the industrial temperature range of -40C to +85C, addressing embedded control designs that require deterministic ROM-based code storage rather than flash-based reprogrammability. The CR-suffix denotes the ROM-programmed variant within the PIC16C7X family, which mirrors the pinout and peripheral set of the flash-based PIC16F76 and the EPROM-based PIC16C76. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, working RAM, and on-chip peripherals. The PIC16CR76-I/SS belongs to the enhanced mid-range PIC16 architecture, which sits in Microchip's portfolio between baseline PIC10/12/14 devices and the high-performance PIC18/dsPIC families. ROM-programmed variants like the CR76 are intended for high-volume production runs where the firmware is fixed and the lower unit cost of masked ROM justifies tooling charges, in contrast to flash-based siblings used in prototyping and low-volume builds. Key features include 368 bytes of data RAM, 22 digital I/O pins, a 10-bit multi-channel Analog-to-Digital Converter (ADC), three timers (Timer0, Timer1, and Timer2), a Universal Synchronous Asynchronous Receiver Transmitter (USART), a Master Synchronous Serial Port (MSSP) supporting SPI and I2C, and capture/compare/PWM (CCP) peripherals. The Harvard RISC core executes most instructions in a single 200 ns instruction cycle at 20 MHz, and a hardware interrupt controller supports up to 14 sources. On-chip peripherals are mapped through a memory-mapped Special Function Register (SFR) space using the banked memory architecture characteristic of mid-range PIC MCUs. Typical applications include consumer appliance controllers, industrial sensor interfaces, automotive body and chassis subsystems, uninterruptible power supply (UPS) front panels, instrumentation front-ends, motor drive signal conditioning, and embedded white-goods user interfaces. The PIC16CR76-I/SS is most often paired with small-signal op-amps, RS-232/RS-485 transceivers, and low-power LCD or LED driver stages. When designing with this part, verify in-system programming availability (CR variants are ROM-only - code is masked at fabrication), confirm the 22 I/O pins are sufficient for the target pin budget, and observe the 5.5 V absolute maximum on VDD to avoid latch-up. The SSOP thermal pad aids dissipation in enclosed housings, but CR devices are inherently single-source - use a pin-compatible flash equivalent (PIC16F76-I/SS) for development and field firmware updates. This page consolidates lifecycle, drop-in alternative, and substitution guidance not presented in the manufacturer datasheet, intended for engineers maintaining legacy designs and procurement teams sourcing the part against an End-of-Life notice.

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PIC16CR77-I/ML

PIC16CR77-I/ML - 8-Bit ROM MCU, 14KB, 20MHz, 44-QFN | Microchip

The Microchip Technology PIC16CR77-I/ML is an 8-bit CMOS ROM-based microcontroller from the PIC® 16C series, featuring 14KB program memory (8K x 14 ROM), 368 bytes of RAM, and 33 digital I/O pins, all housed in a 44-pin VQFN (Quad Flat No-lead) package with an exposed thermal pad. It operates at up to 20 MHz clock speed from a 2.5V to 5.5V supply range, providing 200 ns instruction cycle time for embedded control responsiveness. The 'CR' suffix indicates factory ROM (mask-ROM) program memory suitable for high-volume production runs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and configurable peripheral I/O on a single silicon die. The PIC16CR77 belongs to the broader category hierarchy: 8-bit MCU → microcontroller → embedded processor → semiconductor IC. It is part of the PIC16 mid-range family, which uses a 14-bit instruction word width and Harvard architecture with separate program and data buses, enabling simultaneous instruction fetch and data access. Key features include a 12-channel, 8-bit Analog-to-Digital Converter (ADC) with multiplexed inputs shared with digital I/O, three timer modules (Timer0, Timer1, Timer2), a USART module for serial communication, a synchronous serial port (SSP) supporting SPI and I²C, a capture/compare/PWM (CCP) module, and an 8-bit parallel slave port for external bus expansion. The device operates over the industrial temperature range of -40°C to +85°C and is suited for human-machine interface panels, industrial instrumentation, motor control front-ends, and consumer appliance controllers. The PIC16CR77 employs Microchip's enhanced mid-range core with a 14-bit instruction set, allowing single-cycle execution for most instructions except branches, which take two cycles. The Harvard memory architecture provides deterministic instruction timing suitable for real-time control applications, while the integrated 8-bit ADC and PWM modules reduce external component count in mixed-signal designs. Typical applications include industrial process controllers, HVAC actuator interfaces, automotive body electronics sub-modules, sensor signal conditioning, and embedded display drivers. The wide operating voltage range and industrial temperature grade make it appropriate for both consumer and industrial environments where ROM-based cost optimization is required. When designing with this device, note that the 'CR' ROM variant requires factory mask programming and is appropriate only for high-volume production; for prototyping or low-volume runs, the flash-based PIC16F877 (same pinout and peripheral set) is recommended. The exposed pad on the 44-QFN package must be soldered to the PCB ground plane for proper thermal dissipation and electrical performance. This page synthesizes distributor stock levels, ROM-versus-flash family alternatives, and practical QFN layout notes not found in the standalone datasheet, helping procurement and design engineers evaluate supply and reuse decisions side by side.

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PIC16CR77T-I/ML

PIC16CR77T-I/ML - 8-bit MCU, 14KB ROM, 33 I/O, 20MHz | Microchip

The Microchip Technology PIC16CR77T-I/ML is an 8-bit CMOS ROM-based microcontroller from the PIC16C7x family, featuring 14KB (8K x 14) of program memory, 368 bytes of RAM, and 33 digital I/O pins in a 44-pin VQFN Exposed Pad (ML) package. The 'CR' suffix indicates the part uses factory mask-programmed ROM rather than flash, with a maximum CPU clock of 20 MHz and an internal oscillator option for reduced external component count. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, I/O peripherals, and timers onto one silicon die. The PIC16C7x family belongs to Microchip's mid-range 14-bit instruction word architecture, positioning it in the wider hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> CMOS MCU -> semiconductor. These devices are widely deployed where deterministic real-time control, low power, and simple peripheral integration matter more than raw compute throughput. Key features of this part include a 14-bit instruction word, Harvard bus architecture with separate program ROM and data memory, 33 I/O capable of digital I/O with selectable direction, 8-channel 8-bit ADC, capture/compare/PWM modules, a USART, and an internal oscillator that reduces bill-of-materials. Operating voltage spans 2.5V to 5.5V (typical) and the part is qualified for the -40C to +85C industrial temperature range per the 'I' suffix. Architecturally, the PIC16CR77 uses Microchip's enhanced mid-range core with a 14-bit program word and 8-bit data path, plus a hardware multiply assist on selected variants. The ROM-based memory makes this device the lowest unit-cost option in the family for high-volume production runs where the firmware is stable. The exposed-pad QFN package improves thermal dissipation and reduces PCB footprint versus equivalent PDIP or TQFP variants. Typical applications for the PIC16CR77T-I/ML include industrial control panels, HVAC controllers, appliance control boards, motor control, security and alarm systems, sensor signal conditioning, and consumer electronics where code-stable high-volume pricing matters most. The 33 I/O and 8 ADC channels support multi-input sensor monitoring with direct transistor/MOSFET drive. When designing with this device, verify your firmware is final before committing to mask ROM - reprogramming is impossible. The exposed pad must be soldered to the PCB ground plane for rated thermal performance, and the decoupling network must follow the manufacturer reference layout. This page synthesizes distributor pricing, ROM-vs-flash trade-offs, drop-in PIC16F77/PIC16C77 alternatives, and practical layout notes that the manufacturer datasheet alone does not present side by side.

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PIC16CR77T-I/PT

PIC16CR77T-I/PT - 8-Bit 20MHz 14KB ROM MCU 44-TQFP | Microchip

The Microchip Technology PIC16CR77T-I/PT is an 8-bit RISC microcontroller featuring 14 KB of one-time programmable (OTP) ROM program memory, 368 bytes of RAM, and 256 bytes of EEPROM data memory, all integrated into a 44-pin TQFP (PT) package. The device operates at up to 20 MHz clock speed with an instruction cycle of 200 ns, delivering 5 MIPS of throughput. It is part of the PIC16C7x family of mid-range microcontrollers, designed for embedded control applications that require analog integration, multiple communication peripherals, and low power consumption. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (RAM/ROM/Flash), and programmable I/O peripherals onto a single silicon die. The PIC16CR77 specifically belongs to the mid-range PIC16 family, sitting in the product hierarchy as PIC16CR77 -> PIC16C7x family -> PIC16 mid-range -> 8-bit PIC microcontrollers -> Microchip MCU portfolio -> embedded semiconductor. The "CR" suffix denotes ROM-based (mask or OTP) program memory as opposed to Flash-based parts, which trade flexibility for unit cost in high-volume production. Key features include eight channels of 8-bit analog-to-digital conversion (ADC), a USART module for serial communication, an MSSP module supporting both SPI and I2C, a Capture/Compare/PWM (CCP) module, and a watchdog timer for reliable operation in industrial environments. The device operates across a 2.5V to 5.5V voltage range, suiting both 3.3V and 5V designs, and is offered in the -40 I to +85 I industrial temperature grade for harsh-environment deployments. The PIC16CR77 uses a Harvard architecture with separate program and data buses, enabling simultaneous instruction fetch and data access. Its RISC instruction set consists of 35 single-word instructions, simplifying compiler code generation and reducing software complexity. The integrated brown-out reset (BOR) and power-on reset (POR) circuitry enhance system reliability by ensuring clean startup from unpredictable power transitions. Typical applications include industrial process control, building automation, sensor signal conditioning, instrumentation, motor control loops, and embedded data acquisition systems. The 8-bit ADC and PWM outputs make it particularly well-suited for closed-loop control of analog quantities such as temperature, pressure, and flow in factory automation environments. When designing with this part, note that the ROM (C) variant is intended for high-volume production where the firmware is finalized and unit cost is critical; for prototyping, prefer the flash-based PIC16F877 equivalent which shares the same pinout. The "T" suffix indicates tape-and-reel packaging, while "I/PT" indicates the industrial temperature grade in the 44-pin TQFP package. This page synthesizes distributor stock levels, same-family drop-in alternatives, parametric comparison tables, and practical design notes, presenting a value that goes beyond the manufacturer datasheet by curating replacement options for engineers managing ROM-programmed production runs.

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PIC16F1454-E/JQ

PIC16F1454-E/JQ - 8-bit USB MCU, 14KB Flash, 48MHz | Microchip

The Microchip PIC16F1454-E/JQ is an 8-bit PIC16-family RISC microcontroller featuring 14 KB of Flash program memory, 512 B of RAM, an internal 48 MHz oscillator, and an integrated USB 2.0 Full-Speed device module with clock recovery from host. Housed in a 16-pin UQFN (4x4 mm) package with exposed pad, the device targets compact, USB-enabled embedded designs. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (RAM), and a rich set of peripherals such as timers, ADC, communication interfaces, and I/O ports. The PIC16F1454 belongs to the PIC16 enhanced mid-range core family - an 8-bit RISC architecture with 49 instructions, 16 stack levels, and self read/write Flash capability that simplifies in-application firmware updates. Key features include 14 KB High-Endurance Flash (HEF), 128 B of non-volatile data storage (EEPROM-like), an internal 48 MHz oscillator that eliminates an external crystal in many designs, USB 2.0 Full-Speed device support, an MI2C/SPI module, a 10-bit ADC, and Microchip's eXtreme Low Power (XLP) technology for battery-friendly sleep currents. The PIC16F1454 operates from 2.3 V to 5.5 V across -40C to +125C. Architecturally, the enhanced mid-range core executes most instructions in one instruction cycle (4 clock cycles), giving roughly 12 MIPS at 48 MHz. The USB module integrates a 3.3 V internal regulator and clock-recovery circuitry so the part can derive 48 MHz from the USB host's SOF packets without an external crystal on the USB bus. Typical applications include USB human-interface devices (HID) such as keyboards, mice, and game controllers; USB-to-UART bridges; small sensor nodes; consumer accessories; and low-cost industrial controllers. The exposed-pad UQFN-16 footprint is well suited to space-constrained PCBs where a 4x4 mm BGA-style pad layout is preferred. When designing with this device, remember that the UQFN-16 exposed pad must be soldered to a sufficient copper pour for thermal dissipation. The internal USB regulator provides 3.3 V from VBUS but the MCU core logic runs from VDD; ensure adequate bulk capacitance on both rails and follow Microchip's USB layout checklist to pass USB compliance.

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PIC16F1454-E/ML

PIC16F1454-E/ML - 8-Bit 48MHz USB MCU 14KB Flash | Microchip

The Microchip Technology PIC16F1454-E/ML is an 8-bit enhanced mid-range microcontroller from the PIC® XLP™ 16F family, integrating a full-speed USB 2.0 transceiver with clock-recovery from the USB host, 14KB (8K x 14) of self-read/write Flash program memory, and 1KB of SRAM in a 16-pin QFN (4x4) package. It runs at up to 48MHz from an internal oscillator, supports 12 I/O lines, and offers 128 bytes of non-volatile data EEPROM, making it a compact, low-pin-count solution for USB-capable embedded designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), working memory (RAM), peripherals, and I/O into one device. The PIC16F1454 is a member of the PIC16 enhanced mid-range family, positioned in the 8-bit MCU category and built on Microchip's Harvard RISC architecture with a 14-bit instruction word. Within the broader taxonomy, it belongs to microcontroller -> 8-bit MCU -> embedded controller -> semiconductor. Its XLP™ (eXtreme Low Power) heritage means standby currents in the microamp range, important for USB bus-powered or battery-powered peripherals. Key differentiating features include the integrated USB 2.0 full-speed module with on-chip transceiver and clock-recovery (no external crystal required for USB), a 49-instruction enhanced mid-range core with 16-level hardware stack, a high-endurance Flash (HEF) cell rated for many program/erase cycles, and a MI2C/SPI master-slave module that supports both I²C and SPI on the same peripheral pins. The 16-QFN (4x4) footprint with exposed pad gives a small board area while keeping thermal performance adequate for the device's modest power dissipation. On the architecture side, the PIC16F1454 uses a 2-stage pipeline RISC core with single-cycle instructions (except branches), a 49-instruction set that adds C-friendly constructs to the classic PIC instruction set, and a configurable 32kHz-48MHz internal oscillator with PLL. The on-chip USB module implements the physical layer, NRZI encoding, and bit-stuffing in hardware; the developer supplies only the device-class firmware (HID, CDC, vendor-class, etc.). Typical applications include USB-to-UART bridge dongles, USB HID input devices (keyboards, mice, custom controls), low-cost USB sensor interfaces, USB charging-cable ID circuits, and small 8-bit general-purpose logic-replacement boards. The wide 2.3V-5.5V operating range also supports industrial 24V-bus systems with simple LDO pre-regulation. When designing with this part, ensure the exposed pad of the QFN is soldered to a sufficiently large copper pour for both thermal dissipation and ground return; the USB bus-powered design budget should account for the MCU's typical run current plus the user-load budget defined by the USB 2.0 specification (100mA low-power, 500mA high-power). For firmware development, MPLAB X IDE with the XC8 compiler and the Microchip Libraries for Applications (MLA) USB stack accelerate class-driver bring-up.

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PIC16F1454-E/P

PIC16F1454-E/P - 8-bit 48MHz USB MCU 14KB Flash 14-PDIP | Microchip

The Microchip Technology PIC16F1454-E/P is an 8-bit enhanced mid-range PIC16 family microcontroller operating at up to 48 MHz, integrating 14 KB Flash program memory, 1024 bytes SRAM, and a 256-byte EEPROM in a 14-pin PDIP through-hole package. It features a USB 2.0 full-speed device module with internal clock recovery from the USB host, eliminating the need for an external crystal on many USB designs, plus 12 digital I/O pins shared with the on-chip peripherals. What is a PIC microcontroller? A PIC microcontroller is a Harvard-architecture, RISC-based 8-bit or 16-bit MCU from Microchip built around a small instruction set (typically 35 instructions) and on-chip Flash program memory. PIC microcontrollers (PIC -> 8-bit MCU -> microcontroller -> embedded IC) are widely used in consumer, industrial, USB, and IoT designs because of their deterministic timing, low power modes, and rich peripheral set including timers, ADC, PWM, comparators, and communication modules like UART, SPI, I2C, and USB. Key features of the PIC16F1454 include the proprietary eXtreme Low Power (XLP) technology for sleep currents measured in nanoamps, 128 bytes of non-volatile data storage that survives Flash erase cycles, an internal 48 MHz oscillator accurate enough for USB communications, a 10-bit ADC with up to 9 channels, two PWM modules with complementary outputs suitable for power and motor control, and two comparators. The device runs on 2.3V to 5.5V VDD and supports in-circuit serial programming (ICSP) via two pins. Architecturally, the PIC16F1454 is built on an enhanced mid-range core that delivers 200 ns instruction execution at 20 MHz and 83 ns at 48 MHz, with a 16-level hardware stack. The USB module handles clock recovery, frame timing, packet EOP, and resume signaling in hardware, leaving the CPU free for application code. High-endurance Flash cells rated for 100,000 erase/write cycles make the EEPROM emulation region ideal for storing calibration, configuration, and user data. Typical applications include low-cost USB HID/CDC devices, USB-to-UART bridges, USB sensor tags, USB charging controllers, low-power wireless sensor nodes, capacitive-touch user interfaces, LED lighting controllers, and small motor drivers for fans and pumps. The PIC16F1454-E/P is the PDIP variant, chosen for hand-built prototypes, educational labs, and low-volume industrial products where through-hole assembly is preferred. When designing with this part, ensure the VDD decoupling network follows the datasheet recommendation of a 0.1 uF ceramic in parallel with a bulk capacitor placed within a few millimeters of the VDD pin. The USB D+/D- lines require 27 to 33 ohm series resistors and the VUSB pin must be bypassed with a 0.47 uF capacitor per the datasheet reference schematic. This page synthesizes distributor pricing, drop-in alternatives in the same 14-pin PDIP footprint, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F1454-E/SL

PIC16F1454-E/SL - 8-Bit USB MCU, 14KB Flash, 48MHz | Microchip

The Microchip Technology PIC16F1454-E/SL is a 14-pin SOIC, 8-bit PIC16-family flash microcontroller with integrated USB 2.0 full-speed transceiver, 14KB (8K x 14) of self-programmable Flash program memory and 512 bytes of SRAM, running at up to 48 MHz from the internal oscillator. What is a PIC16 microcontroller? A PIC16 is an 8-bit RISC Harvard-architecture microcontroller from Microchip's PIC16F1 enhanced mid-range family that uses a modified Harvard memory layout (separate program and data buses) and a streamlined RISC instruction set for deterministic execution and low power. The PIC16F1xx line adds 1.8-5.5V operation, nanoWatt XLP sleep currents under 1 µA, and integrated peripherals such as USB, mTouch capacitive sensing, and Configurable Logic Cells, sitting in the hierarchy PIC16F1454 -> PIC16F1xxx -> PIC16 -> 8-bit MCU -> microcontroller -> integrated circuit -> semiconductor. Key features include 12 I/O pins, a 10-bit ADC with up to 9 channels, 2 comparators, 1 enhanced 8/16-bit timer, 1 16-bit timer and 1 8-bit timer, 2 PWM modules, a USART, and a 14-channel mTouch capacitive-sensing block. The integrated USB 2.0 full-speed module provides device-mode operation with an internal 3.3V regulator and supports up to four endpoints, removing the need for an external PHY. Architecturally, the PIC16F1454 uses Microchip's enhanced mid-range core delivering 200 ns instruction execution at 48 MHz, with a single-cycle hardware multiplier and 16-level hardware stack. The 1.8-5.5V wide VDD range allows direct battery connection, and the included 48 MHz precision internal oscillator eliminates external crystal cost for full-speed USB operation. Typical applications include USB HID peripherals (keyboards, mice, game controllers), USB CDC virtual COM ports, capacitive-touch user interfaces via mTouch, LED lighting controllers with PWM, low-cost sensor nodes, and consumer toys. The 14-SOIC package suits hand-soldering and breadboard-friendly through-hole-friendly footprints. Designers should note the 14-pin SOIC has only 12 usable I/O after USB D+/D-, making pin budgeting important. Use the on-chip 3.3V regulator for the USB transceiver pull-up; bypass VUSB and VDD3 pins with 1 µF ceramics, and route the D+/D- pair as a 90-ohm differential. This page synthesizes distributor pricing, drop-in alternative analysis, and applied design notes not found in the standalone datasheet, giving purchasing and engineering teams a single reference for sourcing and substituting PIC16F1454-E/SL.

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