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Produtos (39.000+)

PIC16C74B-20/PQ - 8-Bit CMOS MCU, 7KB OTP, 20MHz | Microchip
PIC16C74B-20/PQ

PIC16C74B-20/PQ - 8-Bit CMOS MCU, 7KB OTP, 20MHz | Microchip

The Microchip Technology PIC16C74B-20/PQ is an 8-bit CMOS mid-range microcontroller built around the PIC16CXX core, supplied in a 44-pin MQFP (10x10) package and offering 7KB (4K x 14) of One-Time-Programmable (OTP) program memory, 192 bytes of RAM, and 33 digital I/O lines. The device executes instructions at a 20 MHz clock rate, delivering 5 MIPS of throughput, and integrates 8 channels of 8-bit Analog-to-Digital conversion, two additional timers, two Capture/Compare/PWM modules, and a synchronous serial port that can be configured as either 3-wire SPI or 2-wire I2C, plus a USART for asynchronous serial communication. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path and a Harvard architecture that separates program and data memory. Within the broader taxonomy, the PIC16C74B belongs to Microchip's PIC16 mid-range family of microcontrollers, which sits under the larger PIC family of 8-bit microcontrollers, the semiconductor category of microcontrollers, and ultimately the integrated circuit hierarchy. The 'C' in PIC16C indicates OTP/EPROM-based program memory, the '74B' identifies the specific peripheral mix and pin-count variant, and the '20' suffix designates the 20 MHz maximum operating frequency. Key features include 192 bytes of data RAM, 33 I/O pins, an integrated 8-channel 8-bit ADC, two CCP/PWM modules, an SSP configurable as SPI or I2C, a USART, and an operating voltage range suitable for 5V systems. The OTP program memory allows one-time programming for low-to-medium volume production, and the 20 MHz clock supports real-time control loops. The MQFP-44 (10x10 mm) package provides a proven through-hole-replacement surface-mount footprint widely accepted in industrial control designs. Architecturally, the PIC16C74B uses a RISC instruction set with only 35 single-word instructions, an 8-level deep hardware stack, and a deterministic interrupt structure. The Harvard bus allows simultaneous instruction fetch and data access, and the integrated analog and digital peripherals reduce external component count. The combination of OTP memory, broad peripheral integration, and 5 MIPS performance makes the part a workhorse for cost-sensitive embedded control applications. Typical applications include industrial automation controllers, motor drive interface boards, sensor signal conditioning front-ends, embedded control boards in white goods and HVAC equipment, and educational or hobbyist development platforms. The wide I/O count and integrated ADC simplify mixed-signal designs, while the USART and SSP enable communication with sensors, displays, and other microcontrollers. Operating temperature is commercial 0C to +70C. Designers should note that the PIC16C74B is an OTP device, so firmware must be fully validated before programming; for in-field reprogrammability, consider the flash-based PIC16F74 or PIC18F equivalents. The MQFP package requires a 10x10 mm land pattern with adequate thermal relief for reflow soldering, and unused I/O pins should be configured as outputs or pulled to defined logic levels to minimize supply current. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers and buyers a single-source reference for the PIC16C74B-20/PQ.

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PIC16C74B-20/PT - 8-Bit 20MHz OTP MCU 7KB | 44-TQFP | Microchip
PIC16C74B-20/PT

PIC16C74B-20/PT - 8-Bit 20MHz OTP MCU 7KB | 44-TQFP | Microchip

The Microchip Technology PIC16C74B-20/PT is an 8-bit CMOS microcontroller from the PIC16C7X mid-range family, running at 20 MHz with 200 ns instruction cycle, integrating 7 KB (4K x 14) of One-Time-Programmable (OTP) program memory and 192 bytes of RAM in a 44-pin TQFP (10x10 mm) surface-mount package. It features 33 digital I/O lines, an 8-channel 8-bit Analog-to-Digital Converter, two 8-bit timers with capture/compare/PWM, one 16-bit timer with capture/compare/PWM, a synchronous serial port configurable as either 3-wire SPI or 2-wire I2C, plus a Universal Synchronous/Asynchronous Receiver Transmitter (USART/SCI). Supply voltage is 4.0 V to 5.5 V. What is an 8-bit OTP microcontroller? An OTP (One-Time-Programmable) microcontroller is a class of embedded controller that uses non-erasable PROM (programmable read-only memory) for code storage, sitting within the broader hierarchy of microcontroller -> embedded controller -> semiconductor. OTP parts offer a lower-cost alternative to windowed UV-erasable parts in volume production, since the program is written once during manufacturing test and the die lacks the expensive quartz erasure window. PIC mid-range devices use a RISC instruction set (35 single-word instructions) so every instruction executes in one cycle (200 ns at 20 MHz), with program branches taking two cycles. Key features include 33 I/O pins, hardware USART for serial communication, dual-mode master/slave SSP for SPI or I2C peripherals, and an integrated 8-channel 8-bit ADC that simplifies sensor-interface designs. The PIC16C7X family is code- and pin-compatible with the earlier PIC16C6X family, easing migration. The Watchdog Timer, power-on reset, brown-out reset, and code protection provide robust embedded reliability for industrial control, instrumentation, and consumer appliances. Architecturally, the PIC16C74B uses a 14-bit instruction word and a Harvard bus architecture that separates program and data memory, allowing instruction fetch and operand read in the same cycle. The mid-range core implements a hardware multiplier-free ALU that performs arithmetic, logical, and bit-manipulation operations on the working register W, with file registers mapped into banked SRAM. The 8-bit ADC uses successive approximation with a sample-and-hold, capable of 20 µs conversion time. Typical applications include industrial process control, motor drive front-ends (via CCP/PWM), HVAC control boards, instrumentation front-panels, sensor conditioning, security-system panels, and white-goods controllers. Designers select the PIC16C74B-20/PT when they need more I/O and ADC channels than the smaller 28-pin PIC16C73B. When designing with this part, confirm the production-fit OTP variant is acceptable for your volume (OTP cannot be reprogrammed). For field-updatable firmware, migrate to the flash-based PIC16F74 or PIC18F equivalents, which are drop-in compatible at the pin level. Use MPLAB X IDE with MPASM or XC8 for code development, and the ICD-series in-circuit debuggers for early prototypes. This page synthesizes verified distributor pricing, pin-compatible same-family alternatives, and practical design guidance specific to the 44-TQFP variant of the PIC16C74B-20/PT - information not found in a single manufacturer datasheet.

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PIC16C74B-20E/P - 8-Bit 20MHz CMOS MCU 7KB OTP 40-Pin PDIP
PIC16C74B-20E/P

PIC16C74B-20E/P - 8-Bit 20MHz CMOS MCU 7KB OTP 40-Pin PDIP

The Microchip Technology PIC16C74B-20E/P is an 8-bit CMOS RISC microcontroller from the PIC16CXX mid-range family, featuring 7KB of one-time-programmable (OTP) program memory, 192 bytes of RAM, and 33 digital I/O pins in a 40-pin PDIP through-hole package. It executes instructions at a 20 MHz clock rate using a 4-clock-per-instruction architecture (200 ns instruction cycle), supports a wide operating voltage range of 4.0 V to 6.0 V, and offers commercial, industrial, and extended temperature grades. The -E suffix denotes the extended temperature range (-40 °C to +125 °C) for harsh-environment operation. Per the manufacturer datasheet, the part also integrates an 8-channel 8-bit Analog-to-Digital converter, two additional timers, two Capture/Compare/PWM modules, a synchronous serial port configurable as 3-wire SPI or 2-wire I²C, and a USART with high sink/source current of 25 mA per I/O. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral interfaces onto one silicon die. The PIC16C74B-20E/P belongs to the PIC16 mid-range architecture, sitting in the hierarchy: microcontroller -> embedded controller -> RISC MCU -> 8-bit CMOS MCU -> PIC16CXX family. Mid-range PICs use a Harvard architecture with separate program and data memory paths, enabling most instructions to execute in a single instruction cycle. The OTP variant (windowed CERDIP for development; plastic PDIP for production) historically targeted cost-sensitive and rugged industrial designs that did not need in-circuit reprogrammability. Key features that distinguish this part include its 35-instruction RISC instruction set with single-cycle execution (except branches), 4 K x 14-bit program word organization (7 KB), low-power modes including 1 µA typical standby at 3 V / 32 kHz and 15 µA typical at 5 V / 4 MHz, and selectable oscillator options (RC, XT, HS, LP). The integrated 8-channel 8-bit ADC supports up to 8 analog inputs for sensor acquisition without external components, and the parallel port architecture allows direct connection to LCDs, keypads, and external memory. Typical applications span industrial control and automation nodes, automotive body and chassis subsystems (extended temperature grade), embedded sensor-interface boards, hobbyist and educational development platforms, and legacy equipment retrofits where OTP memory is acceptable. When designing with this part, allocate sufficient decoupling on VDD/VSS (100 nF + 10 µF typical), confirm MCLR reset-network compliance, and choose the correct oscillator configuration bit setting (RC/XT/HS/LP) for the external crystal or resonator used.

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PIC16C74B-20I/L - 8-Bit 20MHz OTP MCU 7KB | 44-PLCC | Microchip
PIC16C74B-20I/L

PIC16C74B-20I/L - 8-Bit 20MHz OTP MCU 7KB | 44-PLCC | Microchip

The Microchip Technology PIC16C74B-20I/L is an 8-bit CMOS OTP (One-Time-Programmable) microcontroller from the PIC16C family, executing instructions at 20 MHz clock input with a 200 ns instruction cycle and packaged in a 44-pin PLCC (16.59 x 16.59 mm) J-Lead windowed/ceramic package. The device integrates 7 KB of program memory (4K x 14 organization) and 192 bytes of RAM, with 33 digital I/O lines and a wide operating voltage range of 4.0 V to 5.5 V suitable for industrial temperature grades (-40 C to +85 C). An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip built around an 8-bit data path, on-chip program memory, RAM, and a set of peripherals. PIC16C MCUs are part of the broader category of RISC microcontrollers within the semiconductor power-management and embedded-control taxonomy: MCU -> microcontroller -> embedded processor -> semiconductor. They target deterministic, low-cost, low-power embedded control where a full 32-bit processor would be overkill. Key features of the PIC16C74B include 8 channels of 8-bit Analog-to-Digital conversion, two additional timers, two Capture/Compare/PWM peripherals, and a synchronous serial port configurable as either 3-wire SPI or 2-wire I2C, plus a USART for asynchronous serial communication. The high-performance RISC CPU uses only 35 single-word instructions, with all instructions executing in one cycle except program branches (two cycles), enabling predictable real-time response. The OTP program memory, parallel I/O architecture, and ceramic PLCC windowed package indicate this part is intended for prototype development, low-volume industrial production, and legacy industrial control systems where field-programmability is not required. Compared with flash-based successors like PIC16F74, this OTP variant offers lower unit cost in volume but cannot be re-programmed. Typical applications include industrial control systems, motor control, sensor interfacing, building automation, embedded instrumentation, and legacy retrofit designs. The wide industrial temperature range and robust peripheral set make the PIC16C74B well suited for factory-floor equipment. When designing with the PIC16C74B, ensure your programmer supports OTP devices - a windowed CERDIP/PLCC package allows UV erasure for development iteration, but production programming must be done before final encapsulation. Decoupling capacitors (100 nF plus 10 uF bulk) should be placed within 5 mm of VDD pins. This page synthesizes verified distributor pricing, drop-in pin-compatible alternatives, and practical engineering notes not consolidated on any single distributor or manufacturer page, helping engineers make sourcing and substitution decisions in seconds.

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PIC16C74B-20I/P - 8-bit MCU, 7KB OTP, 20MHz, 40-PDIP | Microchip
PIC16C74B-20I/P

PIC16C74B-20I/P - 8-bit MCU, 7KB OTP, 20MHz, 40-PDIP | Microchip

The Microchip Technology PIC16C74B-20I/P is an 8-bit EPROM-based CMOS microcontroller from the PIC16C7x mid-range family, integrating 7KB (4K x 14) of one-time-programmable (OTP) program memory, 192 bytes of RAM, and 33 digital I/O pins in a 40-pin PDIP (Plastic DIP) package. Operating at up to 20 MHz clock input, it delivers 5 MIPS of performance with a 200 ns instruction cycle, executing 35 single-word RISC instructions, with program branches consuming only two cycles. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and configurable peripherals. The PIC16C74B sits in the broader taxonomy as follows: microcontroller -> embedded controller -> 8-bit MCU -> mid-range MCU -> EPROM/OTP MCU -> PIC16C7x family. The "C" suffix designates the EPROM/OTP process technology, while the "B" revision improves ADC performance and peripheral capability over the original PIC16C74 and PIC16C74A. The PIC16C74B features an 8-channel, 8-bit Analog-to-Digital converter, two additional 16-bit timer/counters, two Capture/Compare/PWM (CCP) modules, a synchronous serial port configurable as either 3-wire SPI or 2-wire I2C, and a Universal Asynchronous Receiver-Transmitter (USART). The "-20" speed suffix specifies 20 MHz maximum clock input, while the "I" suffix indicates an industrial operating temperature range of -40C to +85C. Supply voltage is specified at 4.0V to 5.5V from the verified distributor data, and the package suffix "/P" denotes a 40-pin PDIP through-hole form factor. Typical applications include industrial control systems, embedded data acquisition, motor control via the CCP/PWM channels, sensor signal conditioning through the on-chip ADC, and legacy equipment maintenance where the EPROM/OTP architecture allows production-programmed firmware. The PIC16C74B-20I/P is commonly found in supervisory controllers, instrumentation front-ends, and process-control modules where a simple RISC core and integrated analog peripherals reduce BOM cost. Designers should consider the OTP limitation: firmware cannot be reprogrammed in-circuit. For modern designs requiring flash memory and lower power, Microchip recommends the PIC16F74 or PIC18F family as functional upgrades, though pin compatibility is partial. Always validate the brown-out reset, watchdog timer, and oscillator configuration bits during programming to ensure deterministic startup.

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PIC16C74B-20I/PQ - 8-Bit 20MHz OTP MCU 7KB Flash | Microchip
PIC16C74B-20I/PQ

PIC16C74B-20I/PQ - 8-Bit 20MHz OTP MCU 7KB Flash | Microchip

The Microchip Technology PIC16C74B-20I/PQ is an 8-bit CMOS RISC microcontroller in the PIC16CXX mid-range family, featuring 7KB (4K x 14) of one-time-programmable (OTP) program memory, 192 bytes of RAM, and 33 digital I/O lines. It operates at up to 20 MHz instruction rate (200 ns instruction cycle), housed in a 44-pin MQFP (10x10 mm) package with industrial-grade -40C to +85C temperature range, identified by the /PQ package suffix. An OTP microcontroller is a class of microcontroller whose program memory is implemented as one-time-programmable EPROM, allowing a single firmware write during production. Within the broader PIC architecture taxonomy, OTP MCUs sit below flash-based MCUs (e.g., PIC16F) but above mask-ROM parts in flexibility, making them ideal for low-to-medium volume embedded products where production cost outweighs in-field reprogrammability needs. The PIC16C74B-20I/PQ is part of Microchip's legacy mid-range lineup targeted at industrial control, instrumentation, and embedded communication designs. Key differentiating features include 8 channels of 8-bit Analog-to-Digital conversion, two 8-bit timers plus one 16-bit timer, 2 capture/compare/PWM modules, a synchronous serial port configurable as 3-wire SPI or 2-wire I2C, and a USART for asynchronous serial communications. The 25 mA high sink/source current per I/O allows direct driving of LEDs, relays, and small solenoids without external buffers, simplifying BOM and reducing board area in cost-sensitive designs. Architecturally, the PIC16C74B-20I/PQ employs Microchip's advanced Harvard RISC architecture with a 14-bit instruction word and an 8-bit data path. The device executes most instructions in a single 200 ns cycle at 20 MHz oscillator input, providing deterministic throughput that simplifies real-time control loops. The integrated brown-out reset, watchdog timer, and power-on reset support robust embedded operation without external supervisory components. Typical applications include industrial automation controllers, motor control subsystems, sensor signal conditioning, embedded serial communication bridges, and low-cost consumer appliances. The wide operating voltage range of 2.5V to 6.0V plus low-power standby of 1 uA typical at 3V/32 kHz make the device suitable for battery-backed or energy-conscious installations. When designing with this part, note that OTP memory cannot be erased in-circuit - firmware must be fully validated before programming. Engineers typically migrate to flash-based PIC16F74 (drop-in compatible) or PIC18F equivalents for prototypes and low-volume production, reserving OTP PIC16C74B for high-volume runs where per-unit cost dominates. This page synthesizes distributor pricing, drop-in PIC16C/PIC16F alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16C74B-20I/PT - 8-Bit CMOS MCU, 7KB EPROM, 20MHz, TQFP-44 | Microchip
PIC16C74B-20I/PT

PIC16C74B-20I/PT - 8-Bit CMOS MCU, 7KB EPROM, 20MHz, TQFP-44 | Microchip

The Microchip Technology PIC16C74B-20I/PT is a high-performance 8-bit CMOS microcontroller based on Microchip's PIC16CXX mid-range RISC architecture, integrating 7 KB of one-time-programmable EPROM program memory, 192 bytes of RAM, and 33 digital I/O lines into a 44-pin TQFP (PT) surface-mount package rated for the industrial temperature range (-40°C to +85°C). An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/EPROM/Flash), data memory (RAM), and peripheral interfaces on one silicon die. Within the taxonomy of embedded processors, an 8-bit MCU sits below 16-bit and 32-bit MCUs in data-path width but excels in deterministic real-time control, low cost, and ultra-low power consumption. The PIC16C74B belongs to Microchip's mid-range PIC16 family, which provides a RISC instruction set (35 single-word instructions), Harvard memory architecture, and rich on-chip peripherals including 8-channel 8-bit ADC, two CCP modules, a USART, and a synchronous serial port configurable for SPI or I²C. Key features of the PIC16C74B-20I/PT include a 20 MHz maximum clock speed (200 ns instruction cycle), a wide operating voltage range of 2.5 V to 6.0 V with the canonical 4.0 V to 5.5 V operating range typical for this -20 variant, 25 mA source/sink current per I/O pin, and low power consumption of typically <15 µA at 5 V/4 MHz and <1 µA standby at 3 V/32 kHz. The 8-channel 8-bit ADC delivers 8-bit resolution across PORTA and PORTE analog inputs, while the USART and SSP peripherals enable asynchronous serial and SPI/I²C synchronous communication respectively. The PIC16C74B uses a 14-bit instruction word with an 8-bit data path, enabling direct, deterministic interrupt response times and single-cycle instruction execution for most opcodes (program branches take two cycles). The device supports in-circuit serial programming (ICSP) via two pins, allowing firmware updates without removing the part from the board. Industrial temperature grade (-40°C to +85°C) and EPROM program memory make this variant suitable for development and low-volume production where in-system reprogrammability is not required. Typical applications include industrial control systems, sensor signal conditioning, motor control (via CCP/PWM), embedded instrumentation, and legacy equipment maintenance. The 33 I/O pins and 8 ADC channels suit applications requiring multiple sensor inputs and digital outputs. The PIC16C74B-20I/PT remains in active production and is widely used as a drop-in upgrade for PIC16C74A designs where higher clock speed is needed.

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PIC16C74BT-04/L - 8-Bit 4MHz OTP MCU, 7KB, 44-PLCC | Microchip
PIC16C74BT-04/L

PIC16C74BT-04/L - 8-Bit 4MHz OTP MCU, 7KB, 44-PLCC | Microchip

The Microchip Technology PIC16C74BT-04/L is an 8-bit RISC microcontroller from the PIC16CXX mid-range family, delivering 4 MHz CPU performance with 7 KB (4K x 14) of One-Time-Programmable (OTP) program memory and 192 bytes of SRAM in a 44-pin PLCC (J-lead) surface-mount package sized 16.59 x 16.59 mm. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, RAM, and peripherals on one die. Within the broader taxonomy, the PIC16C74B belongs to Microchip's mid-range 8-bit PIC16C family - widely used in industrial control, consumer appliances, and automotive body electronics where deterministic instruction execution and mature CMOS process technology matter more than raw MHz. The 'C' in PIC16C denotes the OTP/EPROM program-memory flavor, while 'B' denotes the silicon revision (B-step). Microcontrollers sit at the foundation of embedded systems, providing programmable intelligence between sensors/actuators and higher-level processors. Key features include 33 digital I/O pins organized across multiple ports, an integrated 8-channel 8-bit ADC, two 8-bit timers plus one 16-bit timer/counter, a Universal Synchronous/Asynchronous Receiver Transmitter (USART/SCI), and a Synchronous Serial Port (SSP/SPI/I2C). The CMOS, low-power RISC-VIII variant runs from a 5 V rail and supports a commercial 0 °C to +70 °C operating range for benign environments, while a fully-static core architecture enables power-down drivers and reduces quiescent draw - characteristics suited to commissioning industrial control modules requiring deterministic interrupt handling. Technically, the PIC16C14B uses a Harvard memory bus, a 14-bit shared bus with 35-level shared instruction bus, and a 4-stage pipeline bus design. Functionally, the PIC16C14B uses a Harvard organization with a 14-bit instruction bus and a shared 8-bit data bus; it executes 35 shared instructions at 4 clock bus/cycle, providing deterministic interrupt handling. Typical applications include industrial control panels, white-goods and consumer appliances, HVAC thermostats, and automotive body controllers requiring deterministic code execution through in-system reprogramming. The wide peripheral availability includes standard CMOS peripherals suitable for direct injection, supporting direct interfaces to sensors and industrial actuators. When designing with this part, design a robust decoupling strategy using two common decoupling capacitors on the supply pins, and design a stable 5 V supply pin regulator - critical for the industrial control modules requiring deterministic timing in automotive firmware.

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PIC16C74BT-04/PQ - 8-bit MCU, 7KB OTP, 4MHz, 44-MQFP | Microchip
PIC16C74BT-04/PQ

PIC16C74BT-04/PQ - 8-bit MCU, 7KB OTP, 4MHz, 44-MQFP | Microchip

The Microchip Technology PIC16C74BT-04/PQ is an 8-bit CMOS RISC microcontroller from the PIC16CXX mid-range family, featuring 7KB (4K x 14) of One-Time-Programmable (OTP) program memory and 192 bytes of RAM, housed in a 44-pin Metric Quad Flat Pack (MQFP, 10x10 mm) surface-mount package. It operates at a maximum clock speed of 4 MHz and is built on a fully-static CMOS architecture that delivers low power consumption with high noise immunity, making it suitable for cost-sensitive embedded control applications. The device also integrates an 8-channel, 8-bit Analog-to-Digital Converter (ADC), 33 digital I/O pins, and the standard mid-range PIC peripheral set including I2C (SSP), SPI, and USART serial interfaces. What is a PIC microcontroller? A PIC microcontroller is a family of low-cost, high-performance, 8/16/32-bit RISC microcontrollers made by Microchip Technology. PIC microcontrollers integrate a CPU core, non-volatile Flash/ROM/OTP program memory, volatile RAM, EEPROM (on some models), and on-chip peripherals such as timers, ADC, communication ports (UART/SPI/I2C), and comparators into a single chip. They are widely used in industrial control, automotive body electronics, consumer appliances, and education due to their deterministic instruction set, low power consumption, and broad toolchain support (MPLAB X IDE, XC8 compiler, PICkit programmers). Key features of the PIC16C74BT-04/PQ include 4 MHz maximum operating frequency from a 5V supply, an internal oscillator option, hardware USART for asynchronous serial communication, a 13-bit program counter capable of addressing 8K x 14 words, and a Watchdog Timer with its own on-chip RC oscillator for reliable recovery from software lockups. The PIC16C74B variant adds enhanced timer/counter modules (Timer0 with 8-bit prescaler, Timer1 with 16-bit mode, Timer2 with 8-bit PWM) and a Capture/Compare/PWM (CCP) module, making it more capable than the older PIC16C74A. Brown-out Reset (BOR) and Power-on Reset (POR) circuits provide robust startup behavior across varying supply conditions, while the In-Circuit Serial Programming (ICSP) interface allows firmware updates after PCB assembly. Technically, the PIC16C74B employs an enhanced 14-bit instruction set with 35 single-word/single-cycle instructions, achieving throughput close to one instruction per clock cycle when pipelined. OTP memory allows one-time programming during manufacturing rather than requiring windowed UV-erase or expensive flash, which keeps unit cost low for high-volume production. The integrated ADC supports 8 channels with 8-bit resolution and can be configured for both single-ended and differential conversions in sleep mode. Typical applications for the PIC16C74BT-04/PQ include industrial process controllers, building automation sensor nodes, consumer appliance control boards, low-end data acquisition systems, motor control front-ends, and legacy embedded designs that require pin-compatible upgrades from the older PIC16C74A family. Its 33 I/O pins also support keypad scanning, LED driving, and character LCD interface duties in human-machine-interface designs. When designing with this part, note that the OTP memory cannot be erased or rewritten - firmware must be fully validated before programming. Use the ICD (In-Circuit Debugger) version for development and migrate to OTP only for volume production. Decoupling should include a 0.1 uF ceramic capacitor close to VDD/VSS pairs, and unused I/O pins should be configured as outputs low to minimize power consumption. This page synthesizes distributor pricing, drop-in alternatives within the same MQFP-44 footprint, and practical design notes not found in the bare manufacturer datasheet.

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PIC16C74BT-04E/L - 8-Bit 4MHz MCU, 7KB OTP, 44-PLCC | Microchip
PIC16C74BT-04E/L

PIC16C74BT-04E/L - 8-Bit 4MHz MCU, 7KB OTP, 44-PLCC | Microchip

The Microchip Technology PIC16C74BT-04E/L is a low-cost, high-performance, CMOS, fully-static 8-bit RISC microcontroller in the PIC16CXX mid-range family, housed in a 44-pin PLCC (J-lead) package. It integrates 7KB (4K x 14) of One-Time-Programmable (OTP) program memory and 192 bytes of RAM, executes instructions at 4 MHz, and exposes 33 digital I/O lines for peripheral interfacing. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, designed for embedded control tasks that require deterministic real-time response, low power, and small footprint. Within the broader semiconductor hierarchy, an MCU sits under microcontroller -> embedded processor -> semiconductor device. The PIC16CXX mid-range family is one of Microchip's classic RISC architectures with a 14-bit instruction word, contrasting with the 16-bit PIC24 and 32-bit PIC32 families. Key features of the PIC16C74BT-04E/L include an integrated 8-channel 8-bit Analog-to-Digital Converter (ADC), three serial communication peripherals (I2C/SPI, SPI, and UART/USART - the legacy 'SSP' and 'USART' modules of the era), and support for an external oscillator. The automotive-grade 'E' suffix denotes an extended operating temperature grade, while the 'T' denotes tape-and-reel packaging and the '04' designator pins the 4 MHz maximum clock frequency. Technically, the device uses a Harvard architecture with separate program and data buses, allowing simultaneous instruction fetch and operand access. The 33 I/O pins are multiplexed with analog and peripheral functions, and the chip provides programmable weak pull-ups, interrupt-on-change wake-up, and a watchdog timer for safety-critical designs. Typical applications include industrial process control modules, automotive body electronics, sensor signal conditioning, motor control drive boards, and legacy embedded controller upgrades where the OTP memory suits low-volume or ruggedized production runs. The 44-PLCC socketed form factor simplifies field service and rapid prototyping. When designing with this part, note that OTP memory cannot be electrically erased; engineers typically prototype with a windowed UV-erasable CERDIP variant and migrate to OTP only for production. Provide a clean +5V rail and decoupling per the datasheet's recommended layout. This page synthesizes distributor pricing, drop-in package-matched alternatives, and practical design notes not collected in any single manufacturer or distributor document.

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PIC16C74BT-04E/PQ - 8-Bit 4MHz OTP MCU 7KB Flash 44-MQFP
PIC16C74BT-04E/PQ

PIC16C74BT-04E/PQ - 8-Bit 4MHz OTP MCU 7KB Flash 44-MQFP

The Microchip Technology PIC16C74BT-04E/PQ is an 8-bit CMOS microcontroller from the PIC16CXX mid-range family, featuring a 4MHz maximum operating frequency, 7KB (4K x 14) of One-Time Programmable (OTP) program memory, and 192 bytes of RAM, housed in a 44-pin MQFP (10x10 mm) surface-mount package. The device integrates 33 digital I/O lines, an 8-channel 8-bit analog-to-digital converter, and the standard PIC16C mid-range peripheral set including a USART, SPI, and I2C. An 8-bit microcontroller (MCU) is a single-chip computer that integrates an 8-bit CPU core, program memory, working RAM, and peripherals such as timers, communication interfaces, and analog-to-digital converters into one IC. Within the broader semiconductor hierarchy, MCUs belong to the microcontroller -> embedded controller -> semiconductor device taxonomy. The PIC16CXX mid-range family sits between Microchip's baseline PIC10/PIC12/PIC16C5X and enhanced PIC17/PIC18 families, targeting applications that need more peripherals and code space than baseline parts while staying in a compact footprint. Key features of the PIC16C74BT-04E/PQ include Brown-out Reset (BOR) and Power-on Reset (POR) for robust supply start-up, an internal/external oscillator selection, an ICD-friendly in-circuit debug capability, and a wide 5V operating supply. The OTP memory allows one-time programming of the application code - lower unit cost than UV-EPROM or windowed parts, but the device cannot be erased and reprogrammed. Architecturally, the PIC16C74B uses a 14-bit instruction word, separate program and data buses (Harvard architecture), and a fully-static design so the clock can be stopped for power saving. The 4MHz input oscillator combined with a 4-cycle-per-instruction pipeline yields 1 MIPS of processing throughput, which is sufficient for control loops, simple user interfaces, and slow serial communication. Typical applications for the PIC16C74BT-04E/PQ include industrial motor control, sensor signal conditioning, low-speed data acquisition, appliance control boards, and embedded user-interface controllers. Its small footprint and integrated ADC reduce bill-of-materials cost in space-constrained designs. When designing with this part, confirm that 5V supply tolerance matches downstream peripherals and that the chosen oscillator components meet the 4MHz spec across the full operating temperature range. Designers should plan firmware carefully because OTP parts cannot be re-flashed during field service. This page synthesizes distributor pricing, drop-in Microchip same-family alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16C74BT-04E/PT - 8-bit PIC MCU, 7KB OTP, 4MHz, 44-TQFP | Microchip
PIC16C74BT-04E/PT

PIC16C74BT-04E/PT - 8-bit PIC MCU, 7KB OTP, 4MHz, 44-TQFP | Microchip

The Microchip Technology PIC16C74BT-04E/PT is a high-performance 8-bit CMOS RISC microcontroller in the PIC16CXX mid-range family, featuring 7KB (4K x 14) One-Time-Programmable (OTP) program memory, 192 bytes of RAM, and 33 digital I/O pins, housed in a 44-pin TQFP (10x10 mm) package supplied on Tape & Reel. It executes instructions at a 4 MHz clock rate from an external oscillator and operates from a 4.0 V to 5.5 V single supply, with the automotive-grade "E" temperature rating suitable for -40C to +125C environments. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals on one die, and the PIC16CXX mid-range family uses a RISC (Reduced Instruction Set Computer) architecture with 35 single-cycle instructions to deliver predictable deterministic execution. The PIC16C74B specifically sits in the mid-range tier between baseline PIC16C5x and enhanced PIC16C6x/7x parts, balancing peripheral integration with code density for embedded control designs. Key features include 33 digital I/O lines multiplexed with on-chip peripherals, three timer modules, a USART for asynchronous/synchronous serial communication, an MSSP module for SPI and I2C, an 8-channel 8-bit Analog-to-Digital Converter (ADC), and capture/compare/PWM (CCP) capability. The OTP program memory uses EPROM cells, which the "T" suffix indicates an industrial/automotive temperature window. Power consumption is reduced through the SLEEP mode with wake-up on interrupt or watchdog timeout, and the architecture supports in-circuit serial programming via two pins. The PIC16C74B uses a Harvard architecture with separate program and data buses, allowing instruction fetch and operand access in a single cycle. The RISC CPU contains an 8-bit ALU, 8-bit working register (W), and a hardware multiply assist. Brown-out Reset (BOR), Power-on Reset (POR), and Watchdog Timer (WDT) with its own on-chip RC oscillator protect against code runaway and unstable supply ramps. Typical applications include industrial control nodes, automotive body and chassis ECUs, sensor signal conditioning, low-speed motor drivers, HVAC damper controllers, and consumer appliance user interfaces. The 8-bit ADC is well matched to thermistor, potentiometer, and battery monitoring tasks. The PIC16C74BT-04E/PT specifically suits automotive under-hood modules where the extended temperature grade and proven OTP one-time-programmable memory are required. When selecting this part, verify that OTP is acceptable for your production volume - high-volume programs typically migrate to the Flash-based PIC16F74 or PIC16F877A for reprogrammability during board bring-up.

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PIC16C74BT-04I/L - 8-bit OTP MCU, 4MHz, 7KB, 33 I/O | Microchip
PIC16C74BT-04I/L

PIC16C74BT-04I/L - 8-bit OTP MCU, 4MHz, 7KB, 33 I/O | Microchip

The Microchip PIC16C74BT-04I/L is an 8-bit PIC16CXX mid-range microcontroller built on a RISC architecture, offering 4MHz core clock speed, 7KB (4K x 14) of One-Time Programmable (OTP) program memory, 192 bytes of RAM, and 33 general-purpose digital I/O pins, housed in a 44-pin PLCC (J-lead, 16.59x16.59 mm) industrial-temperature package. A PIC microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and peripherals into one IC. Within the broader taxonomy, PIC16C74B belongs to the PIC16C family, which sits under the mid-range PIC MCU category, which itself is a subset of 8-bit microcontrollers, which falls under the broader class of embedded controllers and, ultimately, semiconductors. Mid-range PIC MCUs use a 14-bit instruction word and a Harvard architecture with separate program and data buses, which is why this part's program memory is specified as 4K x 14 rather than 4K x 8. Key features of the PIC16C74BT-04I/L include a 20MHz maximum oscillator input, on-chip peripherals such as a multi-channel 8-bit ADC, two 8-bit timers plus one 16-bit timer, a synchronous serial port (SSP) configurable for SPI or I2C, a USART for asynchronous serial communication, a parallel slave port, and a watchdog timer with its own on-chip RC oscillator. The CPU executes 35 instructions, all single-cycle except for program branches, which take two cycles. Industrial temperature grade (-40C to +85C) and 4.0V to 5.5V supply range make it suitable for factory-floor and process-control designs. This device is part of Microchip's PIC16C7X family (PIC16C73B/74B/76/77), all sharing the same peripheral set and pinout family but differing in memory size and package options. The 'B' suffix denotes the enhanced/revision B silicon with improved ADC and peripheral performance compared to the original PIC16C74/A. The 'T' in the MPN indicates tape-and-reel packaging, '-04' specifies the 4MHz speed grade, 'I' is the industrial temperature range, and '/L' denotes the 44-pin PLCC lead finish. Typical applications include industrial control systems, sensor signal conditioning with on-chip ADC, motor control, instrumentation with serial communication links, and embedded control where simple RISC firmware with predictable timing is preferred over more complex 32-bit cores. The wide operating voltage (4.0V-5.5V) and industrial temperature rating allow deployment in factory automation and outdoor equipment. When designing with this device, note that OTP memory cannot be electrically erased - code is committed permanently after programming. Use a windowed CERDIP variant (PIC16C74B-04/JW or PIC16C74B-04/PJW) for development and code revision cycles, then transition to the OTP PLCC for production. Total I/O count (33) excludes pins used for the external crystal/oscillator and the analog Vref input; verify your specific pinout against the datasheet diagram before laying out the PCB. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes that go beyond what the manufacturer datasheet alone provides, with all specs cross-referenced against the Microchip PIC16C7X datasheet and current distributor inventory.

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PIC16C74BT-04I/PQ - 8-bit MCU, 7KB OTP, 4MHz, 44-MQFP | Microchip
PIC16C74BT-04I/PQ

PIC16C74BT-04I/PQ - 8-bit MCU, 7KB OTP, 4MHz, 44-MQFP | Microchip

The Microchip Technology PIC16C74BT-04I/PQ is a member of the PIC16CXX mid-range 8-bit microcontroller family, packaged in a 44-pin MQFP (10x10 mm) and rated for the industrial temperature range (-40C to +85C). It integrates 7KB of One-Time Programmable (OTP) program memory organized as 4K x 14 words, executes instructions at up to 4 MHz, and includes 192 x 8 bytes of data RAM. The 'B' suffix indicates the second-generation PIC16C74 core with the integrated 8-channel, 8-bit analog-to-digital converter. A microcontroller (MCU) is a single-chip computer that contains a CPU, non-volatile program memory, working RAM, and configurable peripherals. Within the broader semiconductor taxonomy, the PIC16C74BT-04I/PQ sits in the 8-bit mid-range MCU category, which itself is a subset of the embedded microcontroller family, sitting below 16-bit and 32-bit MCUs in computational throughput but excelling in deterministic interrupt response, low cost, and ease of programming. OTP memory means the device is programmed once at production; for re-programmable equivalents, the PIC16F74 in the flash-based PIC16F family is the modern counterpart. Key features include 33 digital I/O pins, three serial communication peripherals (I2C/SPI, SPI, and UART/USART), an 8-channel 8-bit ADC, Brown-out Detect and Power-On Reset (POR) for robust supply supervision, and a wide 2.5V to 6.0V operating voltage range. The device supports external oscillator operation, allowing the system designer to choose crystal, resonator, or RC oscillator sources matched to EMI and timing requirements. The PIC16C74BT-04I/PQ is built on Microchip's CMOS, fully-static mid-range architecture, providing low power consumption and instruction execution in a single instruction cycle (excluding branches). With 14-bit instruction width, code density is excellent, allowing rich peripheral interaction in 7KB of memory. The integrated ADC with eight channels makes analog sensor interfacing straightforward without external components. Typical applications include industrial control systems, appliance and HVAC controllers, automotive body electronics, instrumentation front-ends with analog inputs, and embedded sensor hubs requiring UART or SPI host communication. Because the part is OTP, it is best suited to mature, high-volume products where the firmware is finalized and ongoing field updates are not required. Designers should pay attention to the difference between the -04 speed grade (4 MHz) and the -20 speed grade (20 MHz) within the same family; this variant runs at 4 MHz maximum oscillator frequency. The 'T' suffix indicates tape-and-reel packaging, and 'I' indicates the industrial temperature grade. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes - including pin-compatibility analysis across the PIC16C74B and PIC16C73B families - that are not consolidated in any single manufacturer datasheet or distributor listing.

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PIC16C74BT-04I/PT - 8-Bit 4MHz OTP MCU 7KB | TQFP-44 | Microchip
PIC16C74BT-04I/PT

PIC16C74BT-04I/PT - 8-Bit 4MHz OTP MCU 7KB | TQFP-44 | Microchip

The Microchip Technology PIC16C74BT-04I/PT is an 8-bit RISC microcontroller from the PIC16CXX mid-range family, offering 4 MHz maximum clock speed, 7 KB (4K x 14) of One-Time-Programmable (OTP) program memory, and 192 x 8 bytes of RAM in a 44-pin TQFP (10x10 mm) surface-mount package. The 'I' suffix denotes the industrial temperature grade (-40C to +85C) and '04' specifies the 4 MHz speed variant. What is an 8-bit OTP microcontroller? An 8-bit MCU is a microprocessor unit that processes data 8 bits at a time; OTP (One-Time-Programmable) memory can be written exactly once, making these parts economical for mature, high-volume products where firmware is finalized before production. The PIC16CXX family sits in Microchip's mid-range hierarchy (PIC10/12/16/18 base architecture family -> 8-bit MCU -> microcontroller -> embedded processor) and is widely used in industrial control, automotive subsystems, and consumer appliances. Key features of the PIC16C74BT-04I/PT include 33 digital I/O lines, an external oscillator interface, integrated peripherals suited for embedded control, and CMOS fully-static design that minimizes power consumption. The 35-instruction RISC instruction set simplifies code generation, and the Harvard architecture separates program and data buses for deterministic instruction throughput. Technically, the device operates from a 5 V supply, supports in-circuit serial programming via Microchip's ICSP protocol, and includes brown-out and watchdog features typical of mid-range PIC controllers. The OTP EPROM cell array is well-suited for legacy designs that have moved past prototyping but still demand the reliability and toolchain maturity of the PIC16C architecture. Typical applications include industrial automation controllers, automotive body and chassis subsystems, consumer appliance control boards, and embedded sensor interfaces. The wide operating temperature range and CMOS static design also fit unattended remote data-acquisition nodes. When designing in this part, note that OTP cannot be reprogrammed - any firmware update requires physical replacement. For new designs requiring flash memory, consider the pin-compatible PIC16F74 or PIC16F877A families that share the same 44-pin TQFP footprint. Always confirm timer, ADC, and peripheral parity when migrating firmware from older PIC16C7x designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers evaluate long-term availability and supply-chain risk for legacy OTP PIC16 designs.

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PIC16C74BT-20/PT - 8-bit 20MHz OTP MCU 7KB | Microchip TQFP-44
PIC16C74BT-20/PT

PIC16C74BT-20/PT - 8-bit 20MHz OTP MCU 7KB | Microchip TQFP-44

The Microchip Technology PIC16C74BT-20/PT is an 8-bit PIC16C-family CMOS OTP microcontroller running at 20 MHz instruction rate (200 ns per instruction) with 7 KB (4K x 14) of one-time-programmable program memory and 192 bytes of RAM, housed in a 44-pin TQFP (10x10 mm) package. The 'B' suffix designates the mid-range revision with enhanced peripherals versus the original PIC16C74, while the 'T' indicates the tape-and-reel packaging option. An 8-bit OTP microcontroller is a microcontroller based on an 8-bit data-path architecture whose program memory is one-time-programmable - it can be written once by the user (or a programming house) using an EPROM-style cell and cannot be electrically rewritten. OTP parts bridge the gap between masked-ROM volume parts and windowed-EPROM engineering parts, making them well suited to low-volume production, security-sensitive firmware (since the bit pattern is not externally readable after programming), and pre-production builds where final ROM mask conversion is not yet committed. Key features of the PIC16C74BT-20/PT include a Harvard-architecture RISC core with only 35 single-word instructions, eight 8-bit ADC channels (with two additional timers per the family documentation), 2 timers, a USART, MSSP (SPI/I2C), up to 33 digital I/O lines, a 20 MHz clock, and commercial temperature grade (0 C to +70 C). The 44-pin TQFP package provides ample I/O count for human-interface and motor-control front-ends while keeping the PCB footprint under 14 x 14 mm. The PIC16C74B is upwards compatible with the PIC16C5X baseline and PIC12Cxxx devices, so legacy 16C5X assembly code ports with minimal change. The RISC core executes most instructions in a single 200 ns cycle at 20 MHz, delivering up to 5 MIPS throughput - more than adequate for closed-loop control loops running at kHz rates. Brown-out reset, power-on reset, watchdog timer and a wide 2.5-6.0 V VDD range round out the analog/mixed-signal integration. Typical applications include industrial control front-ends, appliance control boards, automotive body modules (verified AEC-Q100 variants exist in the family), security and access-control panels, sensor signal conditioning, and small consumer appliances. The OTP nature suits designs shipping in the thousands to hundreds of thousands where masking the firmware is preferable but flash re-programmability is not required. When designing with this part, plan the in-circuit programming flow carefully: OTP cells cannot be erased, so a programming error forces part scrappage. Place the ICSP clock/data/Vpp test points so a programmer can reach them after board assembly, and budget for a small adapter socket during pilot runs. The 44-pin TQFP also requires fine-pitch PCB layout - 0.8 mm pitch traces are standard but watch for solder bridging on the EP-adjacent pads. This page synthesizes distributor pricing snapshots, same-family and cross-family drop-in alternatives, and practical design notes for the PIC16C74BT-20/PT that are not consolidated in any single manufacturer document. All values are referenced to the Microchip PIC16C74B datasheet (DS30390) and the Octopart/DigiKey catalog pages cited in data_sources.

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PIC16C74BT-20E/L - 8-Bit 20MHz OTP MCU 7KB PLCC-44 | Microchip
PIC16C74BT-20E/L

PIC16C74BT-20E/L - 8-Bit 20MHz OTP MCU 7KB PLCC-44 | Microchip

The Microchip Technology PIC16C74BT-20E/L is an 8-bit CMOS RISC microcontroller from the PIC16CXX mid-range family, featuring 7KB (4K x 14) of One-Time Programmable (OTP) program memory, 192 bytes of RAM, and a maximum clock speed of 20MHz, housed in a 44-pin PLCC package. The 'E' suffix indicates an extended automotive temperature grade (-40C to +125C), while the 'T' denotes tape-and-reel packaging and 'L' designates the PLCC lead form. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + RAM), and programmable I/O peripherals onto one silicon die. The PIC16CXX mid-range family uses a Harvard architecture with separate program and data buses, a 14-bit instruction word, and a RISC instruction set, executing one instruction per instruction cycle (4 clock cycles) for predictable deterministic timing. Within the broader semiconductor hierarchy, an MCU belongs to the logic IC family -> microprocessor -> embedded controller -> mixed-signal SoC. Key features include 33 digital I/O pins, two 8-bit and three 16-bit timer/counter modules, a 5-channel 8-bit ADC, two analog comparators, a Universal Synchronous/Asynchronous Receiver/Transmitter (USART/SCI), a Serial Peripheral Interface (SPI), and an Inter-Integrated Circuit (I2C) bus. The OTP program memory allows one-time programming by the developer, distinguishing this part from UV-erasable EPROM variants. Operating voltage ranges from 4.0V to 6.0V, suiting 5V industrial and automotive designs. The PIC16C74B architecture employs a 14-bit instruction pipeline with an 8-level hardware stack, supporting interrupt-driven designs with prioritized vectored interrupts. Brown-out Reset (BOR) and Power-on Reset (POR) circuitry protect against unstable supply conditions, while the Watchdog Timer (WDT) with its own on-chip RC oscillator provides system recovery from software lockups - critical for automotive and industrial environments where firmware reliability is non-negotiable. Typical applications include automotive body electronics, industrial control subsystems, sensor interface modules, HVAC controllers, and legacy embedded systems requiring field-programmable OTP at production volume. The 20MHz instruction throughput and 5-channel ADC make it well-suited for closed-loop motor control and PID-based process regulation. When designing with the PIC16C74B, ensure the operating supply stays within 4.0V to 6.0V and that decoupling capacitors (typically 0.1uF ceramic) are placed within 5mm of VDD/SS pins. The PLCC-44 socket allows field replacement and in-circuit programming, but OTP memory means firmware must be fully verified before production programming.

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PIC16C74BT-20E/PT - 8-Bit 20MHz 7KB OTP MCU | Microchip
PIC16C74BT-20E/PT

PIC16C74BT-20E/PT - 8-Bit 20MHz 7KB OTP MCU | Microchip

The Microchip Technology PIC16C74BT-20E/PT is an 8-bit CMOS microcontroller from the PIC16CXX mid-range family, featuring a 20MHz maximum operating frequency, 7KB (4K x 14) One-Time Programmable (OTP) program memory, and 192 bytes of RAM, housed in a 44-pin TQFP (10x10 mm) package. The "T" suffix denotes the TQFP package, "B" indicates Revision B silicon, "-20" specifies the 20MHz speed grade, and "E" designates the Extended industrial temperature range of -40C to +125C. What is a PIC16C mid-range MCU? The PIC16C74B belongs to Microchip's PIC16C mid-range family of 8-bit CMOS microcontrollers - fully-static RISC-style processors featuring a 14-bit instruction set, single-cycle execution except for branches, and a Harvard architecture separating program and data memory. The PIC16C family sits within the broader 8-bit MCU hierarchy (8-bit microcontroller -> microcontroller -> embedded computing -> semiconductor IC) and is designed for cost-sensitive embedded control applications requiring deterministic execution, low power consumption, and peripheral integration. Key features of the PIC16C74BT-20E/PT include an integrated 8-channel, 8-bit Analog-to-Digital Converter (ADC), three timer/counter modules, a Universal Synchronous Asynchronous Receiver Transmitter (USART), a Synchronous Serial Port (SSP) supporting SPI and I2C, a Capture/Compare/PWM (CCP) module, and 33 digital I/O pins across multiple ports. The device operates from 2.5V to 6.0V and offers low-power Sleep mode with wake-up on pin change. Architecturally, the PIC16C74B uses a 14-bit program word and 8-bit data path with a two-stage pipeline, achieving 200ns instruction cycle at 20MHz. The device is fabricated in CMOS technology with OTP EPROM program memory, making it ideal for mature, stable production designs where field reprogrammability is not required. Brown-out Reset (BOR), Power-on Reset (POR), and Watchdog Timer with its own on-chip RC oscillator provide robust system-level reliability. Typical applications include industrial motor control, HVAC fan/blower controllers, appliance control boards, automotive body electronics (non-safety), sensor signal conditioning with on-chip ADC, and legacy embedded system upgrades where PIC16C code compatibility is required. The Extended temperature grade supports outdoor and industrial enclosure deployments. When designing with this MCU, ensure that OTP programming is performed before final PCB conformal coating, as OTP memory cannot be re-programmed in-circuit. The 44-TQFP package requires careful PCB layout with proper ground planes to minimize noise coupling into the analog ADC inputs, and decoupling capacitors must be placed within 3mm of each VDD pin per Microchip guidance. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet alone - including lifecycle status, cross-reference candidates, and TQFP-44 layout guidance compiled from Microchip application notes.

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PIC16C74BT-20I/L - 8-Bit 20MHz OTP MCU 7KB | Microchip
PIC16C74BT-20I/L

PIC16C74BT-20I/L - 8-Bit 20MHz OTP MCU 7KB | Microchip

The Microchip PIC16C74BT-20I/L is an 8-bit CMOS RISC microcontroller from the PIC16CXX mid-range family, featuring 7KB (4K x 14) of One-Time-Programmable (OTP) program memory, 192 bytes of RAM, and 33 digital I/O pins, all housed in a 44-pin PLCC (Plastic Leaded Chip Carrier) package with J-leads. The "-20" suffix denotes a 20 MHz maximum clock speed, while "I" indicates the industrial temperature grade (-40C to +85C) and "T" indicates the tape-and-reel packaging option; the "/L" suffix designates the windowed CERDIP-28 variant, though verification with the manufacturer datasheet is advised. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data memory, and programmable I/O peripherals. The PIC16CXX family uses Microchip's enhanced Harvard RISC architecture with separate program and data buses, allowing instruction fetch and operand read in a single cycle for most instructions. The mid-range PIC16C74B specifically targets embedded control applications that require moderate code density, multiple communication peripherals (UART, SPI, I2C), and on-chip analog peripherals such as 8-channel 8-bit A/D converters. Key features include 35 single-word instructions to learn, 14-bit instruction word, 8-bit data path, programmable code protection, power-on reset, brown-out detection, watchdog timer with on-chip RC oscillator, and dual analog comparators. The 8-bit core executes instructions in 200 ns at 20 MHz, delivering approximately 5 MIPS of throughput. The CMOS design provides low power consumption with several sleep/idle modes. Typical applications include industrial control systems, automotive body and chassis electronics, consumer appliance controllers, security and alarm systems, and measurement instrumentation where on-chip ADC, PWM, and communication peripherals reduce external component count. The 44-pin PLCC package also allows socketed prototyping via through-hole adaptors. When designing with this OTP part, plan programming strategy early since OTP devices can be programmed only once and cannot be erased. Consider flash-based PIC16F74 equivalents for development and pilot runs.

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PIC16C74BT-20I/PT - 8-bit 20MHz 7KB OTP MCU 44-TQFP | Microchip
PIC16C74BT-20I/PT

PIC16C74BT-20I/PT - 8-bit 20MHz 7KB OTP MCU 44-TQFP | Microchip

The Microchip Technology PIC16C74BT-20I/PT is an 8-bit PIC mid-range RISC microcontroller with 7KB (4K x 14) one-time programmable (OTP) program memory, 192 bytes of RAM, and a 20MHz maximum operating frequency, housed in a 44-pin TQFP (10x10 mm) package. According to the manufacturer datasheet, the device operates from a single 5V supply and integrates 33 digital I/O lines, three counter/timer modules, a 8-bit ADC with up to 8 channels, and a synchronous serial port configurable for SPI or I2C plus a hardware UART/USART. An 8-bit microcontroller (MCU) is a single-chip processor that integrates a CPU core, program memory, working RAM, peripherals, and interrupt logic on one die, optimized for embedded control tasks where deterministic real-time response, low cost, and small code footprint are more important than raw compute throughput. Within the power management hierarchy of a typical embedded system, the PIC16C74BT-20I/PT sits between the 5V power rail and the analog/digital peripherals, generating the timing signals, sequencing I/O, and serving as the central state machine. Synonymous terms include MCU, micro-controller, microcontroller unit, and embedded controller. Key features include Harvard architecture with separate program and data buses, 14-bit wide instruction words, single-cycle instruction execution except for branches, an 8-level deep hardware stack, and on-chip brown-out and power-on reset. The industrial-grade "I" temperature grade supports -40C to +85C operation, and the "T" suffix indicates tape-and-reel packaging suitable for high-volume SMT assembly. The PIC16C74B silicon combines the mid-range PIC core with the Capture/Compare/PWM (CCP) module and an 8-channel 8-bit ADC, enabling mixed-signal designs where sensing and motion control coexist with serial communication to host processors. The OTP program memory allows factory or field programming before final seal, which simplifies prototyping versus windowed EPROM parts. Typical applications include industrial control panels, appliance control boards, motor drive signal conditioning, sensor interfacing front-ends, and embedded serial-communication bridges. The 33 I/O pins and built-in UART make it well suited for legacy 5V system upgrades where pin-compatible migration from older PIC16C7x parts is required. When designing with the PIC16C74BT-20I/PT, reserve a 100nF decoupling capacitor adjacent to each VDD/VSS pair on the PCB and provide a clean +5V rail. Because the device is OTP, plan firmware revisions carefully; consider the flash-based PIC16F74 for engineering development where in-circuit reprogramming is needed. This page synthesizes current distributor pricing, drop-in pin-compatible alternatives, and design guidance not consolidated on the manufacturer datasheet, giving engineers and buyers a single decision-ready reference.

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PIC16C76-04/SO - 4MHz 8-Bit OTP MCU 14KB | Microchip
PIC16C76-04/SO

PIC16C76-04/SO - 4MHz 8-Bit OTP MCU 14KB | Microchip

The Microchip Technology PIC16C76-04/SO is an 8-bit CMOS OTP (One-Time Programmable) microcontroller in the PIC16C mid-range family, delivering 4 MHz maximum clock speed and 14 KB (8K x 14) of program memory in a 28-pin SOIC package. The part integrates 368 bytes of RAM, 22 digital I/O lines, two 8-bit timer/counters and one 16-bit timer/counter, two capture/compare/PWM modules, a synchronous serial port configurable as SPI or I2C, an 8-bit USART, and a 5-channel 8-bit analog-to-digital converter with brown-out detection. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, on-chip program memory, RAM, peripherals, and an arithmetic logic unit. The PIC16C76-04/SO belongs to the mid-range PIC16 family, which sits within the broader PIC16C sub-family and ultimately the PICmicro 8-bit product line. It is typically deployed as the main system controller in cost-sensitive embedded products where deterministic execution and a small instruction set are prioritized over raw throughput. Key features include 35 single-word instructions, 200 ns instruction cycle at 4 MHz, 14-bit instruction word, 8-level deep hardware stack, in-circuit serial programming via two pins, and a wide operating voltage range of 2.5 V to 6.0 V. Power consumption is low: 5 V at 4 MHz typical supply current is approximately 15 mA, and standby current falls to 1 uA typical at 3 V/32 kHz. The device supports commercial (0C to +70C) and industrial (-40C to +85C) temperature ranges and provides 25 mA sink/source current on I/O pins. The PIC16C76-04/SO uses a Harvard RISC architecture with separate program and data buses. Program memory is OTP EPROM with a typical endurance of 1000 erase/program cycles and data retention of 40 years minimum. The 5-channel 8-bit ADC supports successive-approximation conversion with up to 8 analog input channels multiplexed from device pins. Brown-out reset (BOR) protects against corrupted operation during supply voltage dips, and the watchdog timer with on-chip RC oscillator improves system reliability without external components. Typical applications include industrial control logic, appliance controls, HVAC thermostats, automotive body electronics (non-safety), sensor signal conditioning with on-chip ADC, low-speed serial communication bridges, and consumer device user interfaces. The 22 I/O pins and analog input channels let a single device replace several discrete logic ICs. When designing with the PIC16C76-04/SO, ensure the supply voltage stays within the 2.5 V to 6.0 V window and use the recommended 0.1 uF decoupling capacitor close to VDD. For OTP programming, the in-circuit serial programming interface needs only RB6 and RB7 free of any circuitry that could interfere with the high-voltage programming signals. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet to help engineers compare options and accelerate sourcing decisions.

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PIC16C76-04E/SO - 8-Bit 4MHz OTP MCU 14KB | Microchip | Extended Temp
PIC16C76-04E/SO

PIC16C76-04E/SO - 8-Bit 4MHz OTP MCU 14KB | Microchip | Extended Temp

The Microchip Technology PIC16C76-04E/SO is an 8-bit CMOS OTP-based RISC microcontroller in the PIC16CXX mid-range family, operating at up to 4 MHz with a 200 ns instruction cycle and offering 14KB (8K x 14) of one-time programmable program memory in a 28-pin SOIC (SO) package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data memory (RAM), and peripheral interfaces into one package. The PIC16C76 family belongs to Microchip's PIC16 mid-range architecture, which targets embedded control applications requiring deterministic execution, low power consumption, and a small instruction set. The PIC16C76 specifically adds an integrated 8-bit analog-to-digital converter (A/D), making it well suited for mixed-signal embedded designs. Key features include 368 bytes of RAM, 22 digital I/O pins, 5 channels of 8-bit A/D conversion, a USART (universal asynchronous receiver/transmitter), a synchronous serial port configurable as 3-wire SPI or 2-wire I2C, two 8-bit timer/counters plus one 16-bit timer/counter, two capture/compare/PWM modules, and a wide operating voltage range of 2.5V to 6.0V. The 'E' suffix indicates the Extended temperature grade (-40C to +125C), making this variant suitable for automotive and industrial environments. The PIC16C76 is built on a fully-static CMOS process with 35 single-word instructions and a 14-bit instruction word architecture. Typical current consumption is 15 uA at 5V/4 MHz and as low as 1 uA standby at 3V/32 kHz. Its Harvard bus architecture separates program and data paths, providing predictable, deterministic interrupt latency critical for real-time control loops. Typical applications include industrial automation controllers, automotive body and chassis electronics, HVAC control modules, sensor signal conditioning front-ends, small engine management (ECU), appliance control boards, and battery-powered measurement instruments. The 8-bit A/D converter with 5 input channels suits systems that need to digitize analog sensor signals directly without an external ADC. When designing with the PIC16C76, ensure decoupling capacitors are placed close to VDD and VSS pins, and that MCLR is pulled high through a 10k resistor for normal operation. Because this device uses OTP (one-time programmable) memory, firmware must be fully validated before programming - consider the Flash-based PIC16F76 for in-field reprogrammability. This page synthesizes distributor pricing, drop-in same-brand and cross-brand alternatives, application guidance, and practical design notes not found in the manufacturer datasheet alone, helping procurement and embedded engineers select and qualify the PIC16C76-04E/SO with confidence.

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PIC16C76-04E/SP - 8-Bit CMOS MCU, 14KB OTP, 5 ADC | Microchip
PIC16C76-04E/SP

PIC16C76-04E/SP - 8-Bit CMOS MCU, 14KB OTP, 5 ADC | Microchip

The Microchip Technology PIC16C76-04E/SP is an 8-bit CMOS RISC microcontroller from the PIC16C7X mid-range family with 14KB of one-time-programmable (OTP) program memory, packaged in a 28-pin SPDIP (Skinny Plastic DIP) windowed CERDIP-compatible footprint with 22 digital I/O pins and a 5-channel 8-bit Analog-to-Digital (A/D) converter. Operating from a 4V to 5.5V supply at clock speeds up to 4 MHz (the "-04" speed grade), the PIC16C76-04E/SP delivers 200 ns instruction execution with only 35 single-word instructions to learn, supported by 368 bytes of RAM and the standard PIC16C7X peripheral set: Timer0, Timer1, Timer2, 2 capture/compare/PWM modules, a synchronous serial port configurable as SPI or I2C, and a USART. An 8-bit microcontroller (MCU) is a small computer on a single integrated circuit containing a CPU, program memory (ROM/EPROM/Flash/OTP), data memory (RAM), and integrated peripherals such as timers, communication interfaces, and ADCs. Within the broader taxonomy, an MCU is a member of the microcontroller family -> embedded processor -> semiconductor device. The PIC16C76 specifically sits inside the PIC16 mid-range family, which is the historical bridge between the PIC16 low-end (PIC16C5X) and enhanced mid-range (PIC16F1XXX) architectures. Key features of this part include 14KB OTP program memory (8K x 14 words), 368 bytes of data RAM, a hardware USART for RS-232/RS-485 communication, two PWM outputs suitable for motor and lighting control, an on-chip 8-bit ADC with 5 input channels, and power-saving SLEEP mode with 1 uA typical standby current at 3V/32 kHz. The "-04" suffix indicates a 4 MHz maximum clock (DC to 4 MHz oscillator input), and the "E" suffix indicates the Extended temperature range of -40C to +125C. The 28-pin SPDIP package allows easy through-hole prototyping on breadboards and development boards. The PIC16C76-04E/SP uses a Harvard architecture with separate program and data buses, RISC instruction set, and a hardware multiplier-free ALU optimized for byte and bit operations. The OTP memory is one-time programmable, meaning each device can be programmed exactly once with the application firmware, making this part ideal for low-to-medium volume production where the cost of Flash-based parts is not justified. Typical applications include industrial control systems, sensor interfacing, motor control, consumer appliances, security and alarm systems, and educational microcontroller platforms. The extended temperature range and robust CMOS design also suit outdoor and automotive under-hood environments. Because the PIC16C76 has been superseded by the Flash-based PIC16F76 in new designs, this OTP variant is most commonly used to maintain legacy production runs or to honor existing firmware compatibility constraints. When designing with this device, ensure that the chosen programmer supports the PIC16C7X OTP algorithm (e.g., PICSTART Plus, MPLAB PM3) and that the application firmware will not require field upgrades. Designers should also evaluate the PIC16F76 as a modern Flash-based alternative with in-circuit programmability. This page synthesizes distributor pricing, drop-in same-package alternatives, application context, and practical design notes not consolidated in any single manufacturer datasheet or distributor page.

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PIC16C76-10/SO - 8-Bit 10MHz OTP MCU 14KB | Microchip
PIC16C76-10/SO

PIC16C76-10/SO - 8-Bit 10MHz OTP MCU 14KB | Microchip

The Microchip Technology PIC16C76-10/SO is an 8-bit CMOS OTP-based microcontroller from the PIC16C7X mid-range family, delivering 10 MIPS at a 10 MHz clock in a 28-pin SOIC package. It integrates 14KB (8K x 14) of One-Time-Programmable program memory, 368 bytes of RAM, and 5 channels of 8-bit Analog-to-Digital conversion, with 22 digital I/O lines arranged across PORTA, PORTB, and PORTC. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, working RAM, and programmable I/O peripherals. The PIC16C76 belongs to the RISC microcontroller category (reduced instruction set computer), where most instructions execute in a single 200 ns instruction cycle. Within the broader taxonomy, it sits at: microcontroller -> embedded controller -> 8-bit MCU -> PIC mid-range -> PIC16C7X sub-family. This hierarchy matters for engineers selecting a drop-in alternative or evaluating migration paths to flash-based parts such as the PIC16F76. Key features include the synchronous serial port configurable as either 3-wire SPI or 2-wire I2C, a USART for asynchronous serial communication, two capture/compare/PWM modules, two 8-bit timers plus one 16-bit timer, and a wide 2.5V to 6.0V operating voltage range. The high sink/source current capability of 25/25 mA per pin allows direct drive of small relays, LEDs, and opto-isolators without external driver transistors, simplifying BOM in cost-sensitive designs. Architecturally, the PIC16C76 uses a Harvard-class RISC core with separate program and data buses, allowing instruction fetch and data access to occur in the same cycle. The OTP program memory is programmed once via Microchip's ICSP (In-Circuit Serial Programming) interface, after which the device cannot be reprogrammed. For development or production runs requiring field upgrades, the flash-based PIC16F76 is the recommended migration path with the same 28-pin SOIC pinout, same peripherals, and same instruction set. Typical applications include industrial control, motor control (small DC brushed), sensor interfacing with on-chip ADC, consumer appliance user interfaces, and embedded serial communications subsystems using SPI/I2C/USART. Its commercial temperature grade and 25 mA I/O drive suit it for legacy products, replacement designs, and long-life industrial installations. The OTP program memory makes it cost-optimized for high-volume, code-stable products rather than development prototyping. When designing with this device, note that OTP memory prohibits firmware updates after programming. Confirm code is fully debugged on a flash equivalent (such as PIC16F76-I/SO) before committing to OTP volume programming. The 10 MHz rating corresponds to 10 MIPS maximum instruction throughput; derate accordingly when calculating timer resolution or UART baud-rate error budgets at lower VDD. This page consolidates distributor pricing, lifecycle status, drop-in alternatives, and engineering design notes that the manufacturer datasheet alone does not provide, helping engineers and sourcing teams make faster decisions for production.

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