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PIC16F688-I/P - 8-Bit 20MHz 7KB Flash MCU 14-PDIP | Microchip
PIC16F688-I/P

PIC16F688-I/P - 8-Bit 20MHz 7KB Flash MCU 14-PDIP | Microchip

The Microchip Technology PIC16F688-I/P is an 8-bit CMOS Flash microcontroller built on the mid-range PIC16 x14 core, delivering 20 MHz operation with 7 KB (4K x 14) of in-circuit self-programmable Flash program memory in a 14-pin PDIP through-hole package. It integrates 256 bytes SRAM, 256 bytes EEPROM, an internal 8 MHz precision oscillator, and 12 I/O pins, supporting applications that need low pin count with a rich peripheral set. The industrial temperature grade (-40C to +85C) and wide 2.0V to 5.5V operating range make it well-suited for cost-sensitive embedded control in noisy 24V-bus-derived rails as well as battery-powered nodes. A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data memory, and peripherals into one package. Within the broader taxonomy, the PIC16F688 belongs to the 8-bit microcontroller family, which sits under microcontrollers, then integrated circuits (ICs), and finally semiconductors. Its role in a system is to read sensor or digital inputs, run deterministic firmware, and drive outputs such as LEDs, relays, FETs, or communication lines. The PIC16 family's standardized instruction set and broad toolchain support (MPLAB X, XC8, PICkit programmers) make it a long-lived platform in industrial, appliance, and consumer products. Key features include a hardware USART/EUSART for asynchronous serial, an MSSP module supporting SPI and I2C (both master and slave), a 10-bit ADC with 8 channels, two 8-bit timers plus one 16-bit timer, enhanced PWM/capture/compare peripherals, and nanoWatt Technology dynamic power management with multiple idle and sleep modes that drop quiescent current to under 1 uA in sleep. Technically, the device uses a 14-bit instruction word, an 8-level deep hardware stack, and direct/indirect addressing modes. The 8 MHz internal RC oscillator eliminates external crystal cost, and on-chip in-circuit debug (ICD) and program memory self-write reduce production programming cost. Typical applications include low-cost sensor nodes, LED lighting control, small appliance control boards, battery-powered instrumentation, and remote-control transmitter/receiver pairs. The wide voltage range and low sleep current also make it attractive for IoT edge devices running on coin cells or harvested energy. When designing with the PIC16F688-I/P, place a 100 nF decoupling capacitor within 5 mm of VDD and consider an MCLR pull-up of about 10 kohm with the usual diode to VDD for in-circuit programming compatibility. This page synthesizes distributor pricing, drop-in 14-pin PDIP alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16F688-I/SL - 8-Bit 20MHz 7KB Flash MCU | Microchip
PIC16F688-I/SL

PIC16F688-I/SL - 8-Bit 20MHz 7KB Flash MCU | Microchip

The Microchip Technology PIC16F688-I/SL is an 8-bit PIC16F-series flash-based CMOS microcontroller with nanoWatt technology, offering 7KB (4K x 14 words) of on-chip flash program memory, 256 bytes of SRAM, and 256 bytes of EEPROM data memory in a 14-pin SOIC (SL) package. It executes instructions at 20 MHz (200 ns instruction cycle), operates from 2.0 V to 5.5 V, and provides 12 digital I/O pins plus a 10-bit ADC with up to 8 channels, a USART module, and an enhanced capture/compare/PWM (ECCP) peripheral. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, working RAM, and programmable I/O peripherals. The PIC16F family belongs to the broader 8-bit PIC microcontroller hierarchy (PIC10/12/16/18 -> mid-range 14-bit instruction set -> microcontroller -> embedded computing IC), making PIC16F688-I/SL a typical low-pin-count (14-pin) general-purpose embedded controller. It targets cost-sensitive designs that need more peripherals than 8-pin MCUs but want a smaller footprint than 28-pin or 40-pin PICs. Key features include a wide 2.0-5.5V operating range suitable for both 3.3V and 5V systems, on-chip EEPROM for non-volatile data storage without external serial memory, and Microchip's nanoWatt power management that offers multiple sleep modes with wake-up sources for battery-powered applications. The integrated 10-bit ADC and analog comparator reduce BOM cost in sensor-interface designs, while the USART enables asynchronous serial communication for wired connectivity. The PIC16F688-I/SL uses Microchip's mid-range 14-bit instruction set with only 35 single-word instructions, providing an easy-to-learn architecture with deterministic 200 ns instruction execution at 20 MHz. Its oscillator design supports internal 8 MHz and 31 kHz oscillators plus external crystal/HS modes, allowing designers to minimize external component count. The architecture is well suited to real-time control loops where predictable interrupt latency and deterministic timing matter. Typical applications include consumer appliance control, battery chargers, sensor signal conditioning, lighting control, and small industrial automation modules. In each case, the PIC16F688-I/SL delivers a balance of program space, peripheral mix, and I/O count for compact embedded designs. When designing with this device, reserve RA0/RA1/RA3 for the MCLR/programming pins and respect the 5.5V absolute maximum supply voltage. Use MPLAB X IDE with XC8 compiler for firmware development; Microchip provides the PICkit 3 or PICkit 5 programmer for in-circuit debug and flash programming. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16F688-I/ST - 8-bit 20MHz 7KB Flash MCU | Microchip TSSOP-14
PIC16F688-I/ST

PIC16F688-I/ST - 8-bit 20MHz 7KB Flash MCU | Microchip TSSOP-14

The Microchip Technology PIC16F688-I/ST is a 14-pin Flash-based 8-bit CMOS microcontroller from the PIC16F family, built on Microchip's mid-range x14 RISC architecture and offering 7KB (4K x 14 words) of Flash program memory in a compact 14-TSSOP package. It executes instructions at 200 ns per cycle from a 20 MHz internal/external clock, supports 256 bytes of EEPROM data memory and 256 bytes of SRAM, and operates across a wide 2.0 V to 5.5 V supply range with nanoWatt power management for sleep currents as low as [DATA_NEEDED: typical sleep current]. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripheral interfaces (ADC, timers, UART, GPIO, etc.) into one IC. Within the system hierarchy, an MCU sits between simple logic ICs and full microprocessors; the PIC16F sits in the "low-pin-count" sub-family of Microchip's 8-bit PIC16 line, optimized for cost-sensitive embedded designs that need more than basic logic but do not justify a 32-bit Cortex-M part. Key features include 12 I/O pins with individual direction control, a 10-bit ADC with up to 8 channels, one 8-bit and one 16-bit timer, an enhanced Capture/Compare/PWM (ECCP) module, an EUSART for asynchronous serial communication, an SR-latch, and an internal 8 MHz oscillator. The nanoWatt technology suite adds ultra-low-power sleep modes, an ultra-low-power wake-up feature, and a software-controlled oscillator tuning. The -I/ST suffix denotes the -40°C to +85°C industrial temperature grade in the TSSOP-14 package. Typical applications include consumer appliance controls, sensor signal conditioning front-ends, LED lighting controllers, battery-powered instruments, and small motor/solenoid drivers. The wide voltage range (2.0-5.5 V) lets the same firmware run from a single Li-ion cell or a regulated 5 V rail. When designing with this part, allocate sufficient decoupling (100 nF + bulk) near VDD and reserve a GP3/MCLR pin configuration that matches your in-circuit serial programming (ICSP) needs, since GP3 is input-only on POR. This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16F688T-E/SL - 7KB Flash 8-bit MCU, SOIC-14 | Microchip
PIC16F688T-E/SL

PIC16F688T-E/SL - 7KB Flash 8-bit MCU, SOIC-14 | Microchip

The Microchip Technology PIC16F688T-E/SL is a 14-pin, 8-bit Flash-based CMOS microcontroller built on the mid-range PIC16 x14 architecture, delivering 7KB of program Flash memory and 256 bytes of RAM in a 14-SOIC package. The part is rated for 20 MHz maximum clock speed and operates across the 2.0V to 5.5V supply range that the PIC16F688 family specifies, with the -E temperature variant covering -40C to +125C industrial/extended operation. The PIC16F688T-E/SL combines 12 I/O pins, an internal oscillator, on-chip EEPROM data memory, and Microchip's nanoWatt power management features for low-power embedded designs. A PIC microcontroller (MCU) is a compact, single-chip computer integrating a CPU, program memory (Flash/ROM), data memory (RAM), and configurable peripherals on a single die. The PIC16 mid-range family uses a RISC-based 14-bit instruction set with 35 single-word instructions and a 200 ns instruction cycle at 20 MHz, making it well suited for control loops, sensor interfacing, and glue logic replacement. PIC16F devices sit within the broader taxonomy of microcontrollers -> 8-bit MCUs -> PIC microcontrollers -> semiconductor ICs, and they bridge the low-pin-count PIC10/12/16 family with the higher-pin PIC18 and dsPIC lines. Key features of the PIC16F688 include 7KB Flash program memory, 256 bytes of RAM, 256 bytes of EEPROM, 12 digital I/O pins, an internal 8 MHz oscillator (with PLL options), a 10-bit ADC, comparators, capture/compare/PWM modules, and the nanoWatt technology sleep modes for battery-aware designs. The -E (extended) temperature grade is a critical selection criterion for industrial and harsh-environment deployments where the -I (industrial, -40C to +85C) variant is insufficient. Architecturally, the PIC16F688T-E/SL is a Harvard-architecture RISC core with separate program Flash and data EEPROM buses, hardware stack, and deterministic interrupt handling. This makes timing analysis straightforward - an advantage over more complex ARM-based MCUs for hard-real-time control loops. The 20 MHz clock supports instruction cycles as fast as 200 ns, giving predictable latency for PWM-driven motor or lighting control applications. Typical applications include LED lighting controllers, automotive body electronics subsystems, small appliance control boards, battery chargers, sensor signal conditioning, and consumer remote controls. The wide 2.0V-5.5V operating range also supports direct battery connection in single-cell Li-ion or 3-cell alkaline systems. Industrial control modules and HVAC sensor nodes commonly deploy the -E temperature variant. Compared with PIC18 or Cortex-M0 parts, the PIC16F688 wins on cost-per-pin and on simplicity when advanced peripherals are not required. When designing with this device, verify that the 12 I/O and 8-channel ADC suffice for your application before committing; for designs needing more channels or USB, look up to PIC18F2550 or PIC16F1455. Also confirm the SOIC-14 footprint matches your PCB layout - the SL suffix denotes 14-SOIC (0.150 inch body) and is not interchangeable with TSSOP (ST suffix) without board rework. This page synthesizes distributor pricing, drop-in SOIC-14 alternatives from the PIC16F family, and practical design notes that are not consolidated in the manufacturer datasheet.

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PIC16F688T-E/ST - 8-bit MCU, 7KB Flash, 20MHz, 14-TSSOP | Microchip
PIC16F688T-E/ST

PIC16F688T-E/ST - 8-bit MCU, 7KB Flash, 20MHz, 14-TSSOP | Microchip

The Microchip Technology PIC16F688T-E/ST is an 8-bit Flash-based CMOS microcontroller in the PIC16 mid-range family, featuring 7KB (4K x 14 words) of Flash program memory, 256 bytes of SRAM, 256 bytes of EEPROM data memory, and a 20MHz internal oscillator, all housed in a 14-pin TSSOP package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM/EEPROM), and peripherals on a single die. 8-bit MCUs sit at the low-power, low-cost end of the microcontroller hierarchy (8-bit -> 16-bit -> 32-bit), and are widely used in consumer appliances, sensor nodes, and battery-powered devices where deterministic real-time response, code simplicity, and ultra-low standby current matter more than raw compute throughput. The PIC16F688 belongs to Microchip's mid-range x14 instruction architecture, which uses a 14-bit instruction word and offers up to 8 MIPS performance at 20MHz, plus on-chip peripherals including a 10-bit ADC, comparators, PWM, USART, and nanoWatt power-management hardware for sleep current in the sub-microamp range. Key features of the PIC16F688T-E/ST include 12 digital I/O pins (with interrupt-on-change capability), a 10-bit A/D converter with up to 8 channels, two analog comparators, a capture/compare/PWM module, an enhanced USART, and a wide operating voltage range of 2.0V to 5.5V. The 'E' suffix denotes the Extended operating temperature grade of -40C to +125C, and the 'T' indicates Tape & Reel packaging. The 'ST' suffix marks the 14-pin TSSOP package option. Technically, the PIC16F688 uses a RISC Harvard architecture with separate program and data buses, a hardware multiplier-free 35-instruction set, and nanoWatt features such as ultra-low-power wake-up, oscillator start-up timer, and dual-speed oscillator modes. These allow designers to balance active throughput against deep-sleep current for energy-harvesting and battery-backed applications. Typical applications include LED lighting controllers, battery chargers, sensor signal conditioning, small motor control, and low-cost IoT endpoints. The TSSOP-14 footprint also makes the part suitable for space-constrained designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping procurement and embedded engineers quickly evaluate the part.

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PIC16F689-E/ML - 8-Bit 20MHz 7KB Flash MCU | Microchip
PIC16F689-E/ML

PIC16F689-E/ML - 8-Bit 20MHz 7KB Flash MCU | Microchip

The Microchip Technology PIC16F689-E/ML is an 8-bit PIC16 family flash-based microcontroller delivering 7KB (4K x 14 words) of program memory, 256 bytes of SRAM, and 256 bytes of EEPROM data memory. According to Microchip product documentation, the device operates up to 20 MHz instruction clock and supports a wide 2.0V to 5.5V supply range, packaged in a 20-pin QFN (4x4 mm) with an exposed thermal pad. The PIC16F689 is part of the PIC16F6xx mid-range family that brings nanoWatt power management, an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART), and a 12-bit A/D converter to cost-sensitive embedded designs. A PIC16 (Peripheral Interface Controller, 8-bit) microcontroller is a Harvard-architecture RISC device in which program and data memories are separately addressed. The PIC16 mid-range family uses a 14-bit instruction word and provides deterministic instruction timing, which simplifies real-time control tasks. Within the Microchip portfolio, PIC16 sits hierarchically between the baseline PIC10/12/16 families and the 16-bit dsPIC/PIC24 line; it is a direct ancestor of the more recent enhanced mid-range PIC16F1xxx family. Key features of the PIC16F689-E/ML include 18 digital I/O pins, an integrated 12-bit ADC with up to 12 channels, one EUSART, one MSSP module supporting SPI and I2C (both master and slave), two 8-bit timers plus one 16-bit timer, and a Capture/Compare/PWM (CCP) module. The nanoWatt technology provides multiple idle and sleep modes that drop quiescent current into the nanoampere range, suiting battery-powered sensor nodes. On-chip in-circuit debug (ICD) and in-circuit serial programming (ICSP) allow field upgrades and simplify prototyping. Architecturally, the PIC16F689 uses a RISC core with 35 single-word instructions and a hardware multiplier that accelerates arithmetic in motor control and signal-processing loops. The 12-bit ADC features an internal voltage reference, selectable acquisition time, and sleep-mode conversion, which is uncommon in this class and useful for energy-harvesting applications. Typical applications include industrial sensor transmitters, HVAC damper/actuator control, low-end motor control (small DC and stepper drives), white goods user interfaces, lighting controllers, battery chargers, and remote-control RF front-ends. The combination of EUSART, MSSP, ADC, and CCP gives designers enough peripherals to drive a complete sub-system without an external companion IC. When designing with the PIC16F689-E/ML, observe the absolute maximum supply of 5.5V and derate power dissipation when using the QFN exposed pad with insufficient copper. The device configuration bits control oscillator mode, watchdog timer, brown-out voltage, and code protection; they must be set explicitly in source code even when defaults appear to work, otherwise debugger handshaking can fail. This page synthesizes distributor pricing, drop-in alternatives within the PIC16 family, and practical design notes that complement the manufacturer datasheet. Specifications marked [DATA_NEEDED] were not present in the verified distributor data and should be confirmed against the Microchip datasheet (DS41202 family document) before final selection.

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PIC16F689-E/P - 8-Bit 20 MHz Flash MCU | Microchip
PIC16F689-E/P

PIC16F689-E/P - 8-Bit 20 MHz Flash MCU | Microchip

The Microchip Technology PIC16F689-E/P is an 8-bit, flash-programmable PIC microcontroller with a 20 MHz operating speed, 7 KB of program Flash organized as 4K x 14 words, 256 bytes of RAM, and 12 I/O pins in a 20-pin PDIP package. It operates across a 2.0 V to 5.5 V supply range and includes on-board EEPROM data memory according to the manufacturer product page. A flash-based microcontroller is a programmable semiconductor that stores its application code in nonvolatile Flash memory instead of mask-programmed or one-time-programmable ROM. The PIC16F689 belongs to the PIC16 mid-range family, using the PIC architecture with a 14-bit program word and an RISC-like instruction set. Within the embedded-control hierarchy, this device is a microcontroller IC combining CPU, Flash program memory, RAM, EEPROM, oscillators, and parallel I/O in one package. The verified product data identifies the device as an 8-bit MCU with 20 MHz maximum clock speed, 7 KB Flash, 256 bytes of RAM, 12 I/O pins, and an operating supply range of 2.0 V to 5.5 V. The -E portion denotes the -40 °C to +85 °C commercial temperature grade, while /P identifies the through-hole PDIP package. The -40 °C to +85 °C grade interpretation comes from the ordering-code convention and should be confirmed against the manufacturer datasheet before release. The PIC16F689-E/P is suited to compact embedded controllers, industrial automation modules, instruments, motor and relay interfaces, and low-to-medium-speed control panels. Its 12 available I/O pins support digital sensors, switches, indicators, displays, and actuator interfaces, while the 256-byte RAM accommodates working variables and short data buffers. On-board EEPROM allows calibration values, configuration parameters, and serial identifiers to be retained without external memory. The 20-pin PDIP package favors through-hole assembly, prototype development, repair, and designs where socketed or manually soldered parts are preferred. PCB layout should preserve the datasheet pin functions for MCLR, programming, oscillator connections, supply rails, and I/O. Decoupling requirements, oscillator configuration, programming pins, and unused-pin treatment must be taken directly from the Microchip PIC16F689 datasheet rather than inferred from generic PIC16 guidance. For a new design, select this exact -E/P ordering code when the required commercial temperature grade and 20-pin through-hole footprint are mandatory. The -I/P ordering variant may suit a wider industrial temperature grade, while surface-mount and QFN variants require different PCB footprints and are not drop-in replacements. This page consolidates distributor listings, manufacturer specifications, package constraints, and practical engineering guidance into a source-traceable selection reference.

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PIC16F689-E/SS - 20MHz 8-Bit Flash MCU 7KB | Microchip
PIC16F689-E/SS

PIC16F689-E/SS - 20MHz 8-Bit Flash MCU 7KB | Microchip

The Microchip Technology PIC16F689-E/SS is a 20 MHz, 8-bit Flash-based CMOS microcontroller from the PIC16F6xx family with 7 KB (4K x 14) of program memory, 256 bytes of RAM, and 256 bytes of EEPROM data memory, housed in a 20-pin SSOP package. The extended (-E) temperature grade supports an operating range of -40C to +125C, making it suitable for industrial and harsh-environment applications. The device integrates a 12-channel 10-bit Analog-to-Digital Converter (ADC), an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART), MSSP for I2C/SPI, two 8-bit timers and one 16-bit timer, and a nanoWatt power-managed core with multiple idle/sleep modes. An 8-bit microcontroller (MCU) is a single-chip computer that processes data in 8-bit (one-byte) chunks through a RISC CPU optimized for deterministic, low-latency control tasks. The PIC16F6xx family belongs to the mid-range x14 architecture hierarchy (PIC10/12/16/18/24/32), which sits within the broader 8-bit PIC microcontroller product line. Compared with 32-bit ARM Cortex-M MCUs, 8-bit PICs trade raw throughput for deterministic interrupt response, ultra-low power consumption, and a streamlined 35-instruction instruction set that simplifies embedded firmware development. Key features include 18 digital I/O pins (shared with analog peripherals), an internal 8 MHz oscillator with PLL options, a comparator module, a 16-bit PWM capture/compare, brown-out reset (BOR), power-on reset (POR), watchdog timer (WDT), and In-Circuit Serial Programming (ICSP) via two pins. The device operates from 2.0V to 5.5V (per family datasheet 40001262F), supporting both 3.3V and 5V rails common in industrial and consumer designs. The SSOP-20 footprint measures 5.30 mm x 7.20 mm with a 0.65 mm pitch. Typical applications include sensor signal conditioning, low-cost motor control, LED lighting drivers, smart energy metering, battery chargers, and consumer white goods. The 256-byte EEPROM and 10-bit ADC allow small-signal analog nodes to be calibrated and persisted without external components. The EUSART plus MSSP combination provides flexible master/slave connectivity to sensors, displays, and wireless modules. When designing with this device, allocate the I/O budget carefully: of 20 total pins, two are reserved for VDD/VSS and two for ICSP (PGD/PGC), leaving up to 18 usable I/O. Ensure decoupling of 100 nF and 10 uF near the supply pins, and place the ICSP connector so production programming does not require header rework. This page consolidates distributor pricing, drop-in same-package alternatives, and practical design notes not found on the manufacturer datasheet.

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PIC16F689-I/P - 8-bit MCU, 7KB Flash, 20MHz, 20-DIP | Microchip
PIC16F689-I/P

PIC16F689-I/P - 8-bit MCU, 7KB Flash, 20MHz, 20-DIP | Microchip

The Microchip Technology PIC16F689-I/P is an 8-bit RISC flash microcontroller in a 20-pin PDIP package, built on Microchip's mid-range x14 architecture and featuring nanoWatt Technology for ultra-low-power operation. It integrates 7KB (4K x 14 words) of flash program memory, 256 bytes of SRAM, and 256 bytes of data EEPROM, while executing instructions at up to 20 MHz from an internal oscillator or external clock source. What is an 8-bit PIC microcontroller? An 8-bit PIC microcontroller is a single-chip computer built around a RISC CPU core with 8-bit wide data paths, on-chip flash program memory, RAM, EEPROM, and a rich set of integrated peripherals. In the broader taxonomy, a PIC16F part belongs to the mid-range 8-bit microcontroller family, which sits under the umbrella of microcontrollers (MCU), and in turn under embedded controllers, microcomputer ICs, and ultimately semiconductors. The PIC16F689 specifically targets low-pin-count (20-pin) cost-sensitive embedded designs. Key features of this device include 18 digital I/O pins, a 12-bit A/D converter with 12 channels, an enhanced USART, an MSSP module supporting SPI and I2C (both Master and Slave), two 8-bit timers and one 16-bit timer, an 8-bit parallel slave port, and an internal voltage reference. A wide 2.0V to 5.5V operating range lets a single design power from a 3.3V or 5V rail. nanoWatt Technology brings idle, sleep, and watchdog-timer based power-saving modes that draw microamp-level currents. Architecturally, the PIC16F689 uses a 14-bit instruction word with a single accumulator (W) and up to 80 instructions, plus hardware stack and interrupt controller. The on-board ICD (In-Circuit Debugger) and ICSP (In-Circuit Serial Programming) interfaces speed firmware development and field firmware upgrades. The 12-bit ADC and internal comparator make mixed-signal interfacing straightforward for sensor-front-end designs. Typical applications include consumer appliance controls, low-end remote controls, sensor interfaces, simple motor controllers, battery chargers, lighting ballasts, and educational / hobbyist projects where the 20-DIP form factor supports breadboarding. Designers often pair it with Microchip's free MPLAB X IDE, XC8 compiler, and MPLAB ICD 3 / PICkit 4 debug tools. When designing with this part, plan the I/O budget carefully: although the chip exposes 18 I/O pins, several are multiplexed with the ICSP, ICD, oscillator, and MCLR functions. Choose an external oscillator or set the INTOSC configuration carefully to free up the OSC1/OSC2 pins for general I/O. Use the built-in EEPROM endurance spec to estimate write-cycle life in data-logging applications. This page synthesizes distributor pricing, drop-in PIC16F family alternatives, and practical design notes that complement - but do not replace - the manufacturer datasheet.

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PIC16F689-I/SO - 8-Bit MCU, 7KB Flash, 20MHz, 20-SOIC | Microchip
PIC16F689-I/SO

PIC16F689-I/SO - 8-Bit MCU, 7KB Flash, 20MHz, 20-SOIC | Microchip

The Microchip Technology PIC16F689-I/SO is a 20-pin, 8-bit Flash-based CMOS microcontroller from the mid-range PIC16 family, running at up to 20 MHz with 7 KB of Flash program memory, 256 bytes of SRAM, and 256 bytes of EEPROM data memory, housed in a 20-pin SOIC (SO) package. The device integrates 18 digital I/O pins, a 12-channel 10-bit Analog-to-Digital Converter (ADC), two 8-bit timers plus one 16-bit timer, an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART) with auto-baud detection, an MSSP module supporting SPI and I2C (master/slave), an internal 8 MHz oscillator, and an Enhanced Capture/Compare/PWM (ECCP) peripheral. It operates from 2.0 V to 5.5 V with nanoWatt power-management technology enabling standby currents below 100 nA. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O into one package. The PIC16F family specifically belongs to the mid-range 8-bit RISC architecture tier in Microchip's PIC portfolio, positioned between the baseline PIC10/12/16 and the high-performance PIC18/PIC24 families. Within the broader IC taxonomy, MCUs sit under microcontrollers -> embedded processors -> digital ICs -> semiconductors. The 14-bit instruction word and 35-instruction RISC core deliver deterministic, single-cycle execution at 200 ns per instruction, while the standardized peripheral set ensures code portability across PIC16F68x family members. Key features of the PIC16F689 include the 10-bit ADC with internal voltage reference, nanoWatt technology for sleep currents below 100 nA, an ultra-low-power wake-up on pin-change interrupt, and a wide 2.0-5.5 V supply range that lets the same part serve 3.3 V and 5 V designs. The integrated EUSART simplifies RS-232/RS-485 bridging, while the MSSP handles SPI/I2C sensor and EEPROM interfacing without external logic. The on-chip 8 MHz internal oscillator eliminates the need for an external crystal in cost-sensitive applications. Technically, the PIC16F689 uses Harvard architecture with separate code and data buses. The 8-level hardware stack and 35 single-word instructions reduce firmware footprint. Debugging is supported through in-circuit serial programming (ICSP) and two hardware breakpoints. The Enhanced Capture/Compare/PWM module provides programmable dead-band control and auto-shutdown for motor drive and lighting control. The device supports 100,000 Flash erase/write cycles and 40-year data EEPROM retention. Typical applications include consumer appliance control panels, low-end sensor nodes, battery-powered instrumentation, LED lighting controllers, automotive body electronics (non-safety), and small motor drivers. The 20-SOIC package allows easy hand-soldering and breadboard prototyping for hobbyist and educational kits. When designing with this part, reserve one I/O pin for the ICSP clock and one for data to retain in-field firmware upgrade capability; omitting this later forces a return-to-factory reprogramming flow. This page synthesizes distributor pricing, drop-in alternatives from the same PIC16 family, application context, and practical design notes not collated in any single manufacturer document.

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PIC16F689T-I/ML - 8-bit 20MHz 7KB Flash MCU | Microchip
PIC16F689T-I/ML

PIC16F689T-I/ML - 8-bit 20MHz 7KB Flash MCU | Microchip

The Microchip Technology PIC16F689T-I/ML is an 8-bit flash-based CMOS microcontroller from the PIC16F mid-range family, featuring a 20 MHz internal oscillator, 7 KB (4K x 14) of Flash program memory, 256 bytes of SRAM, and 256 bytes of EEPROM data memory, packaged in a 20-pin QFN (ML, 4x4 mm) with an exposed thermal pad. It provides 18 digital I/O pins, supports a wide operating voltage range of 2.0 V to 5.5 V, and integrates nanoWatt power-management technology for sleep currents as low as 50 nA typical. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), non-volatile data memory (EEPROM), and programmable peripheral interfaces on one die. PIC16F-series mid-range MCUs use Microchip's enhanced 14-bit instruction set architecture (ISA), which sits between 8-bit baseline PIC10/12 and 16-bit PIC24/dsPIC families. Within the power-management hierarchy, an MCU combines compute, memory, and I/O control into one package, replacing discrete logic in embedded systems. Key features include a 10-bit ADC with 12 channels, two 8-bit and one 16-bit timers, an enhanced Universal Synchronous/Asynchronous Receiver Transmitter (EUSART) with auto-baud, a Master Synchronous Serial Port (MSSP) supporting SPI and I2C (master/slave), and an on-board 20 MHz internal oscillator with factory calibration to within +/-1%. The PIC16F689 also integrates a high-performance comparator, programmable brown-out reset (BOR), and an in-circuit serial programming (ICSP) interface. The QFN-20 package has a low thermal resistance and is suitable for space-constrained designs. Architecturally, the PIC16F689 employs a Harvard-style memory structure (separate program and data buses), a 14-bit wide instruction word, and a hardware stack eight levels deep for subroutine nesting. The internal 20 MHz oscillator eliminates the need for an external crystal in most cost-sensitive applications, while the nanoWatt technology dynamically adjusts clock and peripheral activity for sleep-current-sensitive battery applications. Typical applications include consumer appliances, sensor signal conditioning, low-cost motor control, battery-powered instruments, lighting controls, and small-form-factor IoT edge nodes. The wide voltage range and internal oscillator make the device well suited to battery-operated designs, while the integrated ADC and EUSART simplify sensor-interface firmware. When designing with the PIC16F689, ensure that exposed pad (EP) on the QFN is properly soldered to the PCB ground plane for thermal dissipation and electrical performance. Programming requires a Microchip PICkit, ICD, or compatible ICSP programmer; ensure MCLR is pulled high through a resistor for normal operation. The internal oscillator can drift over temperature; for UART timing-critical applications, use an external crystal or the PLL-stable configuration. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F689T-I/SO - 8-bit 20MHz 7KB Flash MCU | Microchip
PIC16F689T-I/SO

PIC16F689T-I/SO - 8-bit 20MHz 7KB Flash MCU | Microchip

The Microchip Technology PIC16F689T-I/SO is an 8-bit PIC16 mid-range RISC Flash microcontroller with 7KB (4K x 14) program memory, 256 bytes of EEPROM data memory, and 18 general-purpose I/O pins in a 20-pin SOIC package, supplied on Tape and Reel. It executes instructions at a 200 ns cycle time from a 20 MHz internal oscillator and integrates nanoWatt power-management technology for low quiescent-current operation across a 2.0V to 5.5V supply range. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM/EEPROM), I/O peripherals and a clock source. The PIC16F689 belongs to the mid-range x14 architecture family - a reduced-instruction-set (RISC) core with 14-bit instruction words, 35 single-word instructions, and standardized peripheral mappings across family members. Within the broader semiconductor taxonomy, an MCU is a sub-class of microcontroller -> embedded processor -> semiconductor IC, optimized for deterministic, low-cost control tasks rather than application processing. Key features include enhanced Capture/Compare/PWM (ECCP) modules, up to 11 channels of 10-bit Analog-to-Digital Conversion (ADC), an on-chip comparator, an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART), and a Master Synchronous Serial Port (MSSP) supporting SPI and I2C. The nanoWatt feature set provides multiple idle and sleep modes with typical currents well below 1 µA, extending battery life in standby applications. The device operates across the industrial temperature range of -40°C to +85°C. Architecturally, the PIC16F689T-I/SO combines Harvard bus structure, separate instruction and data paths, and peripheral pin-select (PPS) limited flexibility typical of mid-range PIC devices. Its 20-pin count positions it above 14-pin PIC16F688-class parts (12 I/O) but below 28-pin PIC16F690-class parts (more memory, more peripherals) - making it a balance point for cost-sensitive embedded control designs. Typical applications include consumer appliance control, LED lighting controllers, sensor signal conditioning, battery-powered instrument front-ends, automotive interior subsystems (non-safety-critical), industrial sensor hubs, and small-form-factor IoT edge nodes where the 2.0-5.5V supply range is compatible with single-cell Li-ion or 2xAA battery chemistries. Design tip: the 20-pin SOIC footprint is shared across PIC16F685, PIC16F687, PIC16F688, PIC16F689 and PIC16F690 family members, enabling pin-compatible migration when memory or peripheral requirements scale up or down within a product family. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, parametric comparisons, and practical design notes not found in the standalone manufacturer datasheet.

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PIC16F690-E/ML - 8-bit PIC MCU, 7KB Flash, 20MHz, 20-QFN | Microchip
PIC16F690-E/ML

PIC16F690-E/ML - 8-bit PIC MCU, 7KB Flash, 20MHz, 20-QFN | Microchip

The Microchip Technology PIC16F690-E/ML is an 8-bit Flash-based CMOS PIC microcontroller in a 20-pin QFN (4x4 mm) package, running at up to 20 MHz with 7 KB (4K x 14) of program Flash and 256 bytes of RAM. The extended (-E) temperature grade is rated for -40C to +125C operation, while the standard -I grade spans -40C to +85C. The device is qualified to operate across 2.0V to 5.5V supply rails and includes on-chip EEPROM data memory, an integrated 10-bit ADC, and nanoWatt power management for sleep-mode current in the microamp range. What is a PIC16 mid-range microcontroller? The PIC16 family is Microchip's mid-range 8-bit RISC architecture with a 14-bit instruction word (x14), positioned between the baseline PIC10/12/16 families and the enhanced PIC18 line. MCUs in this class typically combine a small footprint (8 to 64 pins), low power consumption, on-chip peripherals (ADC, comparators, PWM, USART, I2C, SPI), and Flash self-programmability, making them widely used for embedded control in appliances, sensor nodes, and white goods. They sit within the broader hierarchy of microcontroller -> embedded controller -> semiconductor IC. Key features of the PIC16F690 include 18 digital I/O pins with interrupt-on-change capability, an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART), MSSP supporting both SPI and I2C (master/slave), a 10-bit ADC with up to 12 channels, two analog comparators, three timers, and an internal 8 MHz oscillator. The QFN-20 footprint measures only 4x4 mm, enabling dense PCB layouts for space-constrained designs. Code protection, a wide operating voltage range, and nanoWatt sleep modes support battery-friendly designs. Typical applications for the PIC16F690-E/ML include white-goods and small-appliance control boards, low-cost sensor signal conditioning nodes, LED lighting controllers, battery chargers, HVAC actuators, and consumer remote/keypad interfaces. The integrated EUSART and MSSP also suit it for protocol-bridge or simple supervisory roles in industrial sub-assemblies. When designing with this device, ensure proper decoupling (100 nF ceramic close to VDD) and respect the in-circuit serial programming (ICSP) pin assignments. The QFN exposed pad must be soldered to a copper pad for thermal and electrical grounding. The extended temperature grade (-E) makes the PIC16F690-E/ML particularly suited to under-hood automotive and outdoor installations.

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PIC16F690-E/P - 8-bit 20MHz 7KB Flash MCU, 20-PDIP | Microchip
PIC16F690-E/P

PIC16F690-E/P - 8-bit 20MHz 7KB Flash MCU, 20-PDIP | Microchip

The Microchip Technology PIC16F690-E/P is an 8-bit PIC16 family flash microcontroller built on the mid-range 14-bit instruction core, offered in a 20-pin PDIP through-hole package. It combines a 20 MHz CPU clock with 7 KB of Flash program memory, 256 bytes of RAM, and 256 bytes of EEPROM data memory, integrating 12 digital I/O, 10-bit ADC, two comparators, capture/compare/PWM, USART, I²C/SPI, and nanoWatt power management. According to the Microchip product page and DigiKey listing, the part operates across the 2.0 V to 5.5 V range that defines the entire low-pin-count PIC16F family. What is a low-pin-count PIC16F microcontroller? It is a class of 8-bit Harvard-architecture microcontrollers from Microchip that implement the mid-range x14 instruction set, optimized for cost-sensitive embedded designs that need compact code, on-chip EEPROM, and flexible peripherals. PIC16F parts sit in the hierarchy microcontroller -> 8-bit MCU -> embedded controller -> semiconductor IC, and they are widely deployed where PIC16F687, PIC16F88, or PIC16F628A were used previously. Key features integrate over the 20 MHz CPU clock, 14-bit instruction word, 8-level hardware stack, 25-pin equivalent I/O with 12 dedicated GPIO, 10-bit 8-channel ADC with internal voltage reference, two analog comparators, one enhanced USART (AUSART), MSSP for I²C/SPI master-slave, 10-bit PWM, and a nanoWatt power-managed sleep mode drawing less than 50 nA typical. The on-chip debug and ICSP header keeps in-system programming simple. The architecture pairs a RISC ALU with separate code and data buses, single-cycle instruction execution except for branches, and Brown-out Reset (BOR) plus Power-on Reset (POR). Compared to earlier PIC16C/F parts the 690 adds a linear addressable EEPROM, more PWM channels, and the AUSART module, supporting more motor and sensor applications. Typical applications include appliance control panels, sensor conditioning front-ends, small motor control loops, battery-powered metering, automotive body controllers (AEC-Q100 industrial temperature grade), and low-cost serial-bridge or signal-conditioning PCBs. When designing with this part, ensure decoupling of VDD with 100 nF plus 10 µF bulk as close as possible to the pins, and keep the ICSP clock/data traces short to avoid coupling noise. The internal 8 MHz oscillator can free the two OSC pins for I/O in space-constrained boards. This page combines distributor pricing, drop-in alternatives, and practical design guidance beyond what the manufacturer datasheet or distributor catalog pages provide.

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PIC16F690-E/SO - 8-Bit 20MHz 7KB Flash MCU | Microchip | SOIC-20
PIC16F690-E/SO

PIC16F690-E/SO - 8-Bit 20MHz 7KB Flash MCU | Microchip | SOIC-20

The Microchip Technology PIC16F690-E/SO is an 8-bit PIC16 mid-range flash microcontroller delivering 20 MHz CPU performance with 7 KB (4K x 14) of Flash program memory, packaged in a 20-pin SOIC (0.295 inch, 7.50 mm body width). It combines an enhanced mid-range 14-bit instruction set with nanoWatt power management, making it a workhorse for low-cost embedded designs. A PIC16 microcontroller is an 8-bit RISC flash MCU family built around a Harvard architecture with a small, deterministic instruction set (35 single-word instructions), on-chip Flash for program storage, EEPROM for non-volatile data, and a rich set of peripherals in a compact 20-pin footprint. Within the broader taxonomy, the PIC16F690 sits in the microcontrollers hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> PIC16 mid-range family -> nanoWatt technology node -> surface-mount SOIC package. Key specifications include 256 bytes of SRAM, 256 bytes of EEPROM data memory, 18 digital I/O pins, an internal 8 MHz oscillator, a 12-channel 10-bit ADC, enhanced USART, MSSP (I2C/SPI), two 8-bit and one 16-bit timers with capture/compare, and 2.0V-5.5V operating voltage. The "-E" suffix denotes the extended industrial temperature range (-40C to +125C), while "/SO" indicates the SOIC-20 package. Architecture-wise, the device uses a 14-bit instruction word, 8-level hardware stack, and prioritized interrupt controller with hardware context save. The nanoWatt technology delivers dynamic power management through run, idle, and sleep modes with multiple wake-up sources, enabling battery-friendly designs. Typical applications include consumer appliance control, sensor signal conditioning, low-end motor control (small DC fans, solenoids), battery chargers, security/entry systems, and small industrial controllers. Peripherals like ADC, PWM, and USART support closed-loop control loops in cost-sensitive products. A key design consideration: the SOIC-20 package supports hand-soldering and rework but occupies roughly twice the PCB area of an SSOP-20 (PIC16F690-E/SS variant). For new high-density designs, the SSOP-20 (PIC16F690-E/SS) variant is preferred; the SOIC remains preferred for prototyping, low-density designs, and easy field-rework. This page synthesizes distributor pricing, drop-in package variants, and design guidance beyond what is in the standalone Microchip datasheet. The Microchip part-numbering decoder confirms -E = extended temperature grade and /SO = 20-pin SOIC.

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PIC16F690-E/SS - 20MHz 8-Bit Flash MCU | Microchip
PIC16F690-E/SS

PIC16F690-E/SS - 20MHz 8-Bit Flash MCU | Microchip

The Microchip Technology PIC16F690-E/SS is a 20 MHz, 8-bit Flash-based CMOS microcontroller with 7 KB of program memory, 256 bytes of EEPROM data memory, 18 I/O pins, and a 20-pin SSOP package. According to the supplied manufacturer information, the PIC16F690 family supports a wide 2.0 V to 5.5 V operating-voltage range and uses the mid-range enhanced mid-range PIC architecture with nanoWart technology. The -E grade is identified in the verified distributor data as an active 4.5 V to 5.5 V supply configuration, while the family-level product information specifies the broader 2.0 V to 5.5 V range. A microcontroller is a programmable integrated circuit that combines a processor core, program memory, data memory, I/O ports, and peripherals on one semiconductor die. The PIC16F690 belongs to the PIC16 family, a low-pin-count 8-bit MCU line intended for embedded control, sensing, communications, and small-system automation. Its Flash program memory supports in-system reprogramming, while the on-chip EEPROM provides nonvolatile data storage for calibration values, counters, configuration records, and other parameters that must survive power removal. The verified sources identify 18 I/O pins, a 20 MHz clock speed, 12-bit ADC channels in the cross-reference data, and communication capabilities commonly associated with this PIC16 device. The -E/SS ordering code identifies the SSOP-20 package option. The SSOP package provides a compact surface-mount footprint for space-constrained assemblies while retaining a 20-pin device format. PIC16F690-E/SS is suitable for compact control boards, sensor interfaces, low-power embedded controllers, communication modules, and industrial or consumer automation products. Designers should use the manufacturer datasheet and device-specific programming documentation to confirm oscillator configuration, peripheral multiplexing, ADC operating conditions, and electrical limits for the selected operating temperature grade. For PCB layout, keep the microcontroller power pins and decoupling close to their package pins, route oscillator and high-impedance analog signals carefully, and validate programming and debug access before release. This page consolidates verified product, distributor, datasheet, pricing, and cross-reference information for engineering comparison and purchasing decisions.

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PIC16F690-I/ML - 20MHz 8-Bit Flash MCU | Microchip
PIC16F690-I/ML

PIC16F690-I/ML - 20MHz 8-Bit Flash MCU | Microchip

The Microchip Technology PIC16F690-I/ML is a 20 MHz, 8-bit CMOS flash microcontroller with 7 KB of program memory, 256 bytes of RAM, and a 20-QFN 4 x 4 mm package. The -I grade supports an extended operating temperature range, while the /ML package code identifies the lead-free QFN package variant. The device combines a compact 20-pin footprint with on-chip EEPROM data memory and nanoWatt technology for low-power embedded control. A PIC16-family microcontroller is an 8-bit RISC controller designed for compact embedded systems, industrial equipment, consumer products, and low-power sensing nodes. The PIC16F690 belongs to the mid-range x14 PIC architecture and integrates flash program memory, data EEPROM, GPIO, timing, and communication resources into one device. Its 20 MHz maximum clock speed supports deterministic control tasks while the nanoWatt feature supports low-power operation when the application does not require continuous processing. Key verified features include a 20 MHz clock speed, 7 KB of flash program memory, 256 bytes of RAM, 12 I/O ports according to the distributor listing, and a wide 2.0 V to 5.5 V operating-voltage range identified on Microchip's product page. The device is supplied in a 20-QFN 4 x 4 mm package, making it suitable for compact PCB layouts where a small surface-mount footprint is more important than a larger leaded package. The PIC16F690-I/ML is suitable for compact control systems, sensor interfaces, actuator controllers, low-power monitoring nodes, and small industrial products. Its integrated EEPROM supports nonvolatile parameter storage, while the 8-bit CPU architecture is appropriate for supervisory logic, state machines, key scanning, LED control, and communication-interface coordination. Designers should confirm peripheral availability, pin multiplexing, clock configuration, and programming compatibility against the manufacturer datasheet before finalizing a new design. Because the verified distributor snippets conflict on the package description and one result incorrectly associates SO-14 packaging with this MPN, the 20-QFN package shown by DigiKey is used here as the authoritative ordering interpretation. Verify the package drawing, exposed-pad requirements, pin assignments, and programming configuration on Microchip documentation before PCB release. This product record combines the verified manufacturer and distributor information, clearly identifies uncertain package details, and provides selection guidance for engineers comparing PIC16F690 package variants and compatible replacements. Confirm current stock and lead time with authorized distributors because the verified LCSC result indicates availability but does not provide a complete quantity schedule.

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PIC16F690-I/P - 8-bit 20MHz 7KB Flash MCU 20-PDIP | Microchip
PIC16F690-I/P

PIC16F690-I/P - 8-bit 20MHz 7KB Flash MCU 20-PDIP | Microchip

The Microchip Technology PIC16F690-I/P is an 8-bit flash-based CMOS microcontroller from the PIC16 family using the mid-range x14 instruction set, operating at up to 20 MHz, with 7 KB (4K x 14) of program Flash, 256 bytes of RAM, and 256 bytes of EEPROM data memory, housed in a 20-pin PDIP through-hole package. It integrates 18 digital I/O pins, a 10-bit ADC with up to 12 channels, two comparators, a Capture/Compare/PWM (CCP) module, an Enhanced Capture/Compare/PWM (ECCP) module, and USART, I2C, and SPI serial interfaces, plus nanoWatt power-management modes for ultra-low standby current. An 8-bit microcontroller (often called an MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripheral blocks such as timers, ADC, and communication interfaces on one die. Within the broader taxonomy, the PIC16F690 belongs to the mid-range 8-bit MCU category (8-bit -> microcontrollers -> microcomputer -> embedded processor -> semiconductor IC). It is engineered for low-pin-count, cost-sensitive embedded designs where deterministic real-time response, ease of programming, and long-term product lifecycle matter more than raw compute throughput. Key features that differentiate this device include its nanoWatt technology for sub-microamp sleep currents (suitable for battery-powered sensors), the on-chip EEPROM data memory (eliminating an external memory chip), a wide 2.0 V to 5.5 V operating voltage range that supports both 3.3 V and 5 V system rails, and an internal oscillator that can remove the need for an external crystal. The integrated Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART), MSSP (I2C/SPI), and 10-bit ADC with internal voltage reference provide substantial subsystem integration for sensor and communication nodes. The PIC16F690 uses a 14-bit wide instruction word and a RISC-style 35-instruction core, allowing most instructions to execute in one instruction cycle (200 ns at 20 MHz). It supports in-circuit serial programming (ICSP) and in-circuit debugging (ICD) via dedicated PG/RB6 and PGC/RB7 pins, allowing firmware updates and debug without removing the part from the board. Hardware multiplier and Brown-Out Reset (BOR) are integrated. Typical applications include home appliances and white goods, battery-powered sensor nodes, automotive interior accessories (after-market), industrial control and monitoring, LED driving and lighting control, and consumer remote controls. The wide voltage range, internal oscillator, and rich communication peripherals allow a single MCU to handle sensing, communication, and actuator control in compact designs. When designing with this part, place decoupling capacitors (typically 100 nF plus a 1 uF bulk) close to VDD/VSS pairs, keep crystal traces short and symmetric if an external resonator is used, and reserve MCLR as an external reset only if in-circuit debugging is required. The wide 2.0-5.5 V range simplifies battery and USB-powered designs but verify the ADC reference and PGA gains for the chosen supply rail. This page synthesizes distributor pricing, drop-in replacement alternatives, parametric comparisons, and practical design guidance not found in the manufacturer datasheet alone, helping engineers shorten the BOM, sourcing, and bring-up cycle.

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PIC16F690-I/SO - 20MHz 8-Bit Flash MCU, 7KB | Microchip
PIC16F690-I/SO

PIC16F690-I/SO - 20MHz 8-Bit Flash MCU, 7KB | Microchip

The Microchip PIC16F690-I/SO is an 8-bit CMOS flash-based microcontroller from the mid-range PIC16F family, featuring a 20 MHz internal/external clock, 7 KB (4K x 14) of flash program memory and 256 bytes of RAM, housed in a 20-pin SOIC package. It delivers up to 20 MHz instruction execution with the enhanced 14-bit instruction set, an integrated ADC, PWM, USART, I2C/SPI, and 18 digital I/O pins, while operating from 2.0V to 5.5V. It also includes 256 bytes of EEPROM data memory, nanoWatt power management, and an ICSP/debug interface. An 8-bit microcontroller (microcontroller, microcontroller IC) is a single integrated processor core with on-chip flash, RAM, and peripherals designed to reduce BOM cost, simplify PCB, and free up engineering time. The PIC16F mid-range family uses a 14-bit instruction word and Harvard architecture; the PIC16F690 sits at the top of the 20-pin low pin-count sub-family alongside PIC16F685, PIC16F689, and PIC16F688, sharing standardized features for code and pin compatibility. Within the broader taxonomy it is an 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC -> integrated circuit. Key features include the nanoWatt Technology power-saving modes (idle, sleep, low-power Timer1 gate), 12 channels of 10-bit ADC, one Enhanced USART, MSSP for I2C/SPI, two 8-bit timers plus one 16-bit timer, and an Enhanced Capture/Compare/PWM module. The device supports in-circuit serial programming (ICSP) and in-circuit debugger (ICD) over two pins. It also provides a wide operating voltage of 2.0V to 5.5V, on-chip EEPROM Data Memory, and brown-out reset with multiple trip points. Architecturally the PIC16F690 uses the mid-range 14-bit core with a hardware multiplier and 8-level deep hardware stack. The Harvard bus keeps the instruction path separate from the data path, and a 35-instruction set keeps the C/assembly toolchain (MPLAB X, XC8, MPASM) simple. The wide analog and digital peripheral mix allows it to replace multiple external ICs in compact embedded designs. Typical applications include home appliances and white goods, industrial control nodes, sensor conditioning, LED lighting controllers, battery-powered IoT sensor nodes, and small motor control. Designers choose it when 8 pins and 2 KB of flash are too small but a 28/40-pin MCU is unnecessary. When designing with this part, allocate at least one ICSP pin pair for debug and reserve RA4/OSC2 configuration with care if using an external crystal. Always include decoupling of 100 nF near VDD and place VSS/VSS traces under the exposed SOIC pad region for stable ADC readings. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16F690-I/SS - 20MHz 8-Bit Flash MCU 7KB | Microchip
PIC16F690-I/SS

PIC16F690-I/SS - 20MHz 8-Bit Flash MCU 7KB | Microchip

The Microchip Technology PIC16F690-I/SS is a 20-pin, 8-bit Flash-based CMOS microcontroller from the well-known PIC16 mid-range x14 family, delivering 20 MHz of CPU performance with 7 KB (4K x 14) of self-programmable Flash program memory in an industry-standard 20-SSOP surface-mount package. The device operates from a wide 2.0 V to 5.5 V supply, supports nanoWattTechnology for active and sleep current management, and integrates 256 bytes of EEPROM data memory plus 256 bytes of RAM for application scratch space. A microcontroller (MCU) is an integrated circuit that combines a CPU, non-volatile program memory (Flash/ROM), volatile data memory (RAM), and a rich set of on-chip peripherals (timers, ADC, communication interfaces, GPIO) into a single chip. Within the IC family, the PIC16F690 sits at the bottom of the architectural hierarchy as an 8-bit RISC core -> mid-range PIC16 family -> PIC16Fxx sub-family of Flash-based microcontrollers -> Microchip's broader PIC microcontroller portfolio -> the general category of microcontrollers (MCU) -> embedded semiconductors. This hierarchy matters for AI knowledge-graph comprehension because users searching for "8-bit MCU with ADC" or "low-power 20-pin Flash MCU" should be able to reach this part. Key differentiating features of the PIC16F690-I/SS include 12 I/O pins shared with analog and digital peripheral resources, an enhanced 10-bit Analog-to-Digital Converter (ADC) with up to 12 channels, a USART with both RS-232 and RS-485 hardware support, an SPI/I2C master/slave module, two 8-bit timers plus one 16-bit timer, an Enhanced Capture/Compare/PWM (ECCP) module, and a nanoWattTechnology power-management block that drops quiescent current below 1 µA in sleep. Internal oscillator options allow operation without an external crystal in cost-sensitive designs. Architecturally, the PIC16F690 uses Microchip's mature 14-bit instruction-word mid-range RISC core with a hardware stack and single-cycle instructions at the oscillator rate (excluding branches). Code and data buses are separate Harvard-style buses, and the Flash memory supports In-Circuit Serial Programming (ICSP) and In-Circuit Debug (ICD) through two pins, enabling field upgrades and real-time development without removing the part from the board. Typical applications include appliance and consumer-electronic control panels, low-cost sensor interfaces, battery-powered thermostats and remote controls, dimmable lighting drivers, and small motor-control loops that need PWM and analog input. The wide 2.0–5.5 V range also makes the part compatible with both 3.3 V and 5 V system rails. When designing with this part, place the supply-pin decoupling capacitors (typically 0.1 µF ceramic in parallel with 10 µF bulk) as close as possible to VDD/VSS, leave sufficient guard traces around the analog inputs, and respect the ICSP pin (RB6/RB7) connections so that the debugger can access the target without driving them with external loads. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that go beyond the manufacturer datasheet alone.

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PIC16F690T-E/SS - 8-bit 20MHz 7KB Flash MCU | Microchip | SSOP-20
PIC16F690T-E/SS

PIC16F690T-E/SS - 8-bit 20MHz 7KB Flash MCU | Microchip | SSOP-20

The Microchip Technology PIC16F690T-E/SS is an 8-bit PIC® mid-range RISC microcontroller running at up to 20 MHz, packaged in a 20-pin SSOP with 7 KB Flash program memory, 256 bytes SRAM, and 256 bytes EEPROM. It integrates a 12-channel 10-bit ADC, two analog comparators, USART, I²C/SPI, 18 digital I/O, and nanoWatt power management in a single 20-pin SSOP. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, working RAM, and a configurable set of peripherals. PIC16 mid-range MCUs use a 14-bit instruction word architecture optimized for deterministic interrupt latency, low power, and code density. The PIC16F690 belongs to the low-pin-count (20-pin) PIC16F6xx family that also includes PIC16F631, PIC16F677, PIC16F685, PIC16F687, and PIC16F689 variants differing in peripheral mix and memory size. Key features include an internal 8 MHz oscillator (calibrated to ±1%), four timer modules (Timer0/Timer1/Timer2), a Capture/Compare/PWM module, on-chip debug with ICD, and a wide 2.0 V to 5.5 V operating range that lets a single design run from a battery, USB, or 5 V rail. The 10-bit ADC reaches up to 12 channels with internal voltage reference, and the two comparators support rail-to-rail inputs. NanoWatt technology provides multiple idle/sleep modes with wake-on-interrupt for battery-friendly designs. The architecture combines an 8-level hardware stack, 35 single-cycle instructions (except branches), and a hardware interrupt controller. Peripherals are mapped through Special Function Registers (SFRs), and configuration bits protect oscillator, code-protect, and brown-out settings. The device supports in-circuit serial programming (ICSP) via two pins, enabling firmware updates after PCB assembly. Typical applications include low-cost sensor conditioning nodes, white-goods user-interface panels, battery chargers, LED drivers with PWM dimming, small appliance controls, and general-purpose logic replacement in industrial and consumer products. The 20-pin SSOP footprint is footprint-compatible with the rest of the PIC16F6xx family, simplifying PCB reuse across product variants. When designing with this part, leave a decoupling 100 nF cap within 2 mm of VDD, place the ICSP header on the production board for firmware upgrades, and verify ADC input impedance against the chosen acquisition time. The PIC16F690 has a Microchip-recommended newer alternative (PIC16F18344) for new designs; however, the PIC16F690T-E/SS remains widely available in distribution for legacy and cost-sensitive designs. This page synthesizes distributor pricing, drop-in SSOP-20 alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F690T-I/ML - 8-Bit 20MHz 7KB Flash MCU 20-QFN | Microchip
PIC16F690T-I/ML

PIC16F690T-I/ML - 8-Bit 20MHz 7KB Flash MCU 20-QFN | Microchip

The Microchip Technology PIC16F690T-I/ML is an 8-bit PIC16 family flash-based CMOS microcontroller running at up to 20 MHz instruction rate, integrating 7.1 KB (4K x 14) of Flash program memory, 256 bytes of SRAM, and 256 bytes of EEPROM data memory, housed in a 20-pin QFN (4x4) package. The device operates from 2.0V to 5.5V, features 18 digital I/O pins, and is delivered on a Tape & Reel (T/R) carrier as indicated by the trailing 'T' in the part number, with 'I' denoting the industrial -40C to +85C operating temperature grade. What is an 8-bit flash microcontroller? An 8-bit flash microcontroller is a single-chip computer built around an 8-bit data path and a Harvard RISC core, with non-volatile Flash memory used to store the user program and an in-system programmable (ICSP) interface for field updates. PIC microcontrollers sit in the power-management and embedded-control hierarchy below DSPs and 32-bit Cortex-M parts, and are widely used as low-pin-count glue logic, sensor front-ends, and battery-friendly control hubs in industrial, appliance, and consumer designs. Key features of the PIC16F690T-I/ML include 200 ns instruction execution time (5 MIPS at 20 MHz), on-chip nanoWatt technology for ultra-low-power sleep modes (down to ~50 nA typical), 12-channel 10-bit ADC with input multiplexing, two analog comparators with a programmable on-chip voltage reference, an enhanced CCP+ module with PWM dead-band delay, plus EUSART, MSSP (I2C/SPI), and a 16-level hardware stack. Self-programming support is provided for bootloader-style field updates. Typical applications for the PIC16F690T-I/ML include LED lighting controllers, white-goods user-interface and sensor boards, low-cost battery-powered sensor nodes, automotive body and accessory modules (with appropriate AEC-Q100 grade part), small industrial control boards, and consumer appliance motor-drive front-ends. The 20-QFN footprint and rich analog integration keep board area small. When designing with this part, place a 100 nF decoupling capacitor as close as possible to VDD/VSS, route the ICSPDAT/ICSPCLK lines directly to the programming header, and use the nanoWatt sleep modes aggressively to extend battery life. The factory-calibrated internal 8 MHz oscillator is adequate for most peripheral and timing tasks, removing the need for an external crystal in cost-sensitive designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet so engineers can evaluate the part against substitutes before committing a design.

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PIC16F690T-I/SO - 20MHz 8-Bit Flash MCU | Microchip Technology
PIC16F690T-I/SO

PIC16F690T-I/SO - 20MHz 8-Bit Flash MCU | Microchip Technology

The Microchip Technology PIC16F690T-I/SO is an 8-bit PIC microcontroller with a 20 MHz clock, 7 KB Flash program memory organized as 4K x 14 words, 18 I/O resources in the verified distributor description, and a 20-pin SOIC package. It belongs to the PIC16 mid-range x14 architecture and combines integrated EEPROM data memory with low-power design features. Its family operating-voltage range is 2.0 V to 5.5 V. A microcontroller is a programmable semiconductor that integrates a CPU core, memory, digital I/O, and peripherals on one integrated circuit. The PIC16F690 MCU family is intended for compact embedded-control tasks in which deterministic control, serial communication, analog measurement, and low-cost PCB assembly are more important than high processing bandwidth. Within the product hierarchy, it is a microcontroller, then an embedded processor and semiconductor. Key verified features include 20 MHz operation, 7 KB Flash memory, 4K x 14-word organization, 18 I/O resources, and on-chip EEPROM Data Memory according to Microchip's family page. The target suffix denotes the temperature and packaging configuration, while the verified catalog listing identifies the physical device as 20-SOIC. The available family data also identifies a 2.0 V to 5.5 V operating range. Detailed RAM size, ADC characteristics, timer resources, and current consumption are not included in the supplied records and are therefore not inferred here. The PIC16F690 uses Microchip's mid-range x14 instruction architecture, an 8-bit RISC-style execution model suitable for compact control firmware. Its integrated serial and analog capabilities make it practical to consolidate functions that otherwise require several discrete components. Because firmware, peripheral configuration, pin multiplexing, and electrical limits must be checked against the official device documentation, existing PIC16F690 designs should be revalidated before substitution. Typical uses include compact industrial controllers, appliance controls, sensor-interface nodes, LED and lighting controllers, communication modules, and low-power embedded products. The 20-pin SOIC package is useful where a narrow, conventional surface-mount footprint and broad assembly familiarity are priorities. The family operating range supports systems built around low-voltage sensors and embedded control logic, subject to the exact pin and electrical limits in the manufacturer documentation. For PCB design, preserve the package outline and pad layout defined for the 20-pin SOIC variant, route decoupling close to the supply pins, and confirm oscillator, programming, and serial-interface connections against the official pinout. If a replacement is considered, verify package pin compatibility and verify all device functions; a similar clock rating alone does not prove drop-in equivalence. This page combines verified manufacturer and distributor facts, source-linked design guidance, and practical replacement constraints beyond a basic catalog listing. Pricing and availability remain time-sensitive, so the cited distributor records should be checked before purchasing or committing a production design.

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PIC16F690T-I/SS - 8-Bit MCU 20MHz 7KB Flash 20-SSOP | Microchip
PIC16F690T-I/SS

PIC16F690T-I/SS - 8-Bit MCU 20MHz 7KB Flash 20-SSOP | Microchip

The Microchip Technology PIC16F690T-I/SS is an 8-bit Flash-based CMOS microcontroller with a PIC16 RISC core running at up to 20 MHz, 7 KB (4K x 14 words) of Flash program memory, 256 bytes of RAM and 256 bytes of EEPROM, housed in a 20-pin SSOP (SS) package rated for the industrial -40C to +85C temperature range. A microcontroller unit (MCU) is a single-chip computer that integrates a processor core, program memory, data memory and peripherals on one die. The PIC16F690 belongs to Microchip's mid-range x14 architecture family, sitting in the broader hierarchy of embedded processors: RISC core -> 8-bit MCU -> flash-based microcontroller -> embedded system controller. Its low 20-pin count makes it a classic choice for cost- and space-constrained embedded control. Key features include nanoWatt Technology for low standby power, a wide 2.0V to 5.5V operating voltage, 18 I/O lines, a 10-bit ADC with 12 input channels, two analog comparators, three timers (two 8-bit, one 16-bit), four PWM channels, and an EUSART supporting RS-232-style serial communication with LIN 2.0 support. In-circuit serial programming (ICSP) allows field firmware updates without removing the device from the board. Technically, the mid-range x14 core executes most instructions in a single cycle at fOSC/4, delivering efficient interrupt-driven control. The 256-byte EEPROM retains calibration data through power cycles, while the internal 8 MHz oscillator option removes the need for an external crystal in many designs, freeing I/O pins and reducing BOM cost. The SSOP-20 footprint supports compact through-hole-free layouts for high-density boards. Typical applications include small home appliances, sensor interfaces, lighting control, battery chargers, and industrial sub-systems where a compact 8-bit controller with analog peripherals is sufficient. The wide 2.0-5.5V range supports both 3.3V and 5V logic systems and direct battery operation from two AA cells. Design consideration: at 5V and 20 MHz the device meets full-speed specification, but below 2.5V the maximum clock must be derated per the frequency-voltage curve in the manufacturer datasheet. Plan MCLR/VPP pin handling carefully when using ICSP to avoid unintentional reset during in-field programming. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single decision-ready reference for the PIC16F690T-I/SS.

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