Integrated Circuits

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Products (39,000+)

PIC16F677-E/ML - 8-Bit MCU, 3.5KB Flash, 20MHz, QFN-20 | Microchip
PIC16F677-E/ML

PIC16F677-E/ML - 8-Bit MCU, 3.5KB Flash, 20MHz, QFN-20 | Microchip

The Microchip Technology PIC16F677-E/ML is an 8-bit RISC flash microcontroller built on the mid-range PIC® x14 architecture, delivering 5 MIPS at 20 MHz clock speed, 3.5 KB (2K x 14) of flash program memory, 128 bytes of SRAM, and 128 bytes of data EEPROM in a 20-pin QFN (4x4) package. It operates from 2.0 V to 5.5 V, supports 18 digital I/O pins across two ports (RA/RC), and integrates 10-bit A/D conversion on up to 12 channels plus two analog comparators. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals. The PIC16F677 belongs to the PIC16F family of low-pin-count flash microcontrollers, which sit in Microchip's 8-bit product tree alongside PIC10, PIC12, PIC18, and PIC24 families. Within the broader taxonomy, 8-bit MCUs are one branch of microcontrollers, which themselves belong to the embedded processors family, which fall under semiconductors and integrated circuits. PIC MCUs are widely used in cost-sensitive, low-power embedded designs because of their deterministic instruction set, low part cost, and ultra-low-power nanoWatt XLP sleep modes. Key features include hardware USART for asynchronous serial communication, MSSP for SPI and I²C, one 8-bit and one 16-bit timer, an enhanced PWM module with up to four outputs, on-chip oscillator, in-circuit serial programming (ICSP) for field updates, and a wide -40 °C to +125 °C extended operating range for industrial applications. The device supports interrupt-driven and event-driven firmware models and includes a programmable code protection scheme. The PIC16F677 employs an enhanced Harvard architecture with separate program and data buses, a 14-bit instruction word, and a 35-instruction set that keeps firmware compact and predictable. The integrated 10-bit ADC delivers up to 12 channels of analog input, two analog comparators provide windowed or threshold sensing, and nanoWatt XLP technology reduces standby current to tens of nanometres, enabling battery-powered designs. Typical applications include sensor signal conditioning, small appliances and white goods, consumer electronics, LED lighting controllers, battery chargers, and industrial control nodes. With 18 I/O, ample memory for state-machine firmware, and rich analog peripherals, the PIC16F677 fits designs that need more headroom than the PIC16F630/676 but do not require the 28- or 40-pin PIC16F88x family. When designing with this device, allocate at least two pins for ICSP (PGD/PGC) and reserve RA0/RA1 for analog functions if the ADC is used. Use the internal oscillator to reduce external component count, and follow the Microchip PIC16F677 datasheet recommended decoupling and ground-pour guidelines to keep ADC noise below 1 LSB.

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PIC16F677-E/P - 8-Bit 20MHz 3.5KB Flash MCU | Microchip 20-PDIP
PIC16F677-E/P

PIC16F677-E/P - 8-Bit 20MHz 3.5KB Flash MCU | Microchip 20-PDIP

The Microchip Technology PIC16F677-E/P is a low pin-count 8-bit CMOS flash microcontroller (MCU) built on the mid-range PIC16 x14 architecture, offering 3.5 KB (2K x 14) of Flash program memory, 128 bytes of RAM, and 256 bytes of EEPROM in a 20-pin PDIP through-hole package. The device runs at 20 MHz (200 ns instruction cycle), supports 2.0V to 5.5V operation, and delivers up to 12 I/O pins with nanoWatt power management technology. The "-E" temperature grade extends the operating range to -40C to +125C for industrial and harsh-environment applications. A microcontroller (MCU) is a single-chip computer containing a CPU, program memory (ROM/Flash), working memory (RAM), non-volatile data memory (EEPROM), and programmable I/O peripherals. The PIC16F677 belongs to the mid-range PIC16 family of 8-bit RISC MCUs, which sits below the PIC18/PIC24 and above the baseline PIC10/12/16 families in Microchip's 8-bit portfolio. PIC mid-range devices use a 14-bit instruction word and Harvard architecture, providing deterministic timing ideal for real-time control loops. The "F" suffix indicates Flash program memory (reprogrammable in-circuit), the "677" identifies the specific die, and the "-E/P" suffix chain encodes extended temperature grade (E) and PDIP package (P). Key features include 3.5 KB self-programmable Flash, 128 B SRAM, 256 B EEPROM, 12 digital I/O pins with interrupt-on-change capability, a 10-bit ADC with up to 8 channels, two 8-bit timers plus one 16-bit timer, a dedicated Capture/Compare/PWM (CCP) module, a USART for asynchronous serial communication, an Enhanced Universal Synchronous/Asynchronous Receiver-Transmitter, and on-chip oscillator options supporting external crystals, resonators, or internal 31 kHz/8 MHz RC operation. The nanoWatt technology layer enables deep sleep currents as low as ~50 nA typical and active currents around 1 mA at 4 MHz, allowing battery-powered designs to last years on a single cell. The mid-range PIC16F677 core implements a 14-bit instruction set with only 35 single-word instructions, simplifying firmware development. The Harvard architecture separates program and data buses, allowing instruction fetch and data access to occur in the same cycle. The integrated brown-out reset (BOR), power-on reset (POR), and watchdog timer (WDT) with on-chip low-power RC oscillator provide robust field deployment. Code protection fuses and ICD (In-Circuit Debugger) support are standard, easing prototyping and securing intellectual property. Typical applications include white goods and home appliances (washing machines, microwave oven controllers), HVAC thermostats and fan controls, automotive body electronics (interior lighting, seat controllers, instrument clusters), industrial sensor interfaces, remote controls, battery chargers, and low-cost sensor-conditioning front ends. The extended temperature grade makes the PIC16F677-E/P suitable for under-hood automotive modules and outdoor industrial enclosures. When designing with this MCU, allocate pin budget carefully: 12 I/O pins must serve ADC, USART, CCP, ICSP programming (RB6/RB7), and the MCLR reset, leaving limited headroom for dense interfaces. Always provision two decoupling capacitors (100 nF + 10 uF) within 5 mm of VDD/VSS pins, and ensure the ICSP clock/data lines are not loaded by application circuitry that would disturb in-circuit debug. This page synthesizes distributor pricing, same-family drop-in alternatives within the 20-PDIP footprint, and practical design notes not found on the manufacturer product page alone.

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PIC16F677-E/SO - 8-Bit 20MHz 3.5KB Flash MCU | Microchip
PIC16F677-E/SO

PIC16F677-E/SO - 8-Bit 20MHz 3.5KB Flash MCU | Microchip

The Microchip Technology PIC16F677-E/SO is an 8-bit PIC® 16F flash microcontroller built on the mid-range x14 RISC architecture, delivering 20 MHz instruction execution in a 20-pin SOIC package. The device integrates 3.5 KB of flash program memory, 128 bytes of SRAM, and on-chip EEPROM data memory, alongside 18 digital I/O pins, an integrated 12-bit ADC, and a 10-bit DAC. The -E temperature suffix indicates the extended operating range of -40C to +125C. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable peripherals, and is the fundamental building block of embedded systems. Within that taxonomy, the PIC16F677 sits in the low pin-count (20-pin) branch of the 8-bit PIC® mid-range family, which itself belongs to the broader category of RISC microcontrollers and, ultimately, embedded microprocessors. The flash-based PIC16F line is distinguished by Harvard architecture, 14-bit instruction words, and the nanoWatt power-management feature set that allows multiple sleep modes and selectable oscillator sources. Key features include 200 ns instruction execution time, 2.0 V to 5.5 V wide operating voltage range, on-chip EEPROM, nanoWatt power management with multiple sleep modes, an integrated 12-bit A/D converter with up to 14 channels, a 10-bit DAC module, two comparators, and a Capture/Compare/PWM (CCP) module. The device supports in-circuit serial programming (ICSP) via two pins, enabling field upgrades without removing the part from the board. Architecturally, the PIC16F677 uses a Harvard-style RISC core with separate program and data buses, allowing instruction fetch and operand read to occur in a single cycle. The 14-bit-wide instruction word and 35 single-word instruction set simplify code generation, while the 8-level hardware stack and reset vector streamline firmware structure. Peripherals such as the 12-bit ADC, 10-bit DAC, comparators, and CCP are mapped to fixed SFR addresses, allowing deterministic I/O handling under interrupts. Typical applications include industrial sensor conditioning, battery-powered instrumentation, consumer appliance control, LED lighting drivers, low-end data loggers, and home-automation nodes. The integrated 12-bit ADC and 10-bit DAC pair is particularly well suited to closed-loop analog control without external converters. When designing with this device, note that programming/debugging requires Microchip's ICSP interface (PGD/PGC pins) and a compatible programmer such as PICkit 3/4 or MPLAB SNAP. Brown-out reset trip levels and oscillator selection must be configured in the configuration-word registers before code execution, and unused I/O pins should be set as outputs low to minimize sleep current. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, including a same-brand first alternatives list and a quantified comparison table against equivalent PIC16 family members.

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PIC16F677-E/SS - 8-Bit MCU, 3.5KB Flash, 20MHz, 20-SSOP | Microchip
PIC16F677-E/SS

PIC16F677-E/SS - 8-Bit MCU, 3.5KB Flash, 20MHz, 20-SSOP | Microchip

The Microchip Technology PIC16F677-E/SS is an 8-bit Flash-based CMOS microcontroller from the PIC16F mid-range family, featuring 3.5KB (2K x 14) of Flash program memory, 128 bytes of EEPROM data memory, 128 bytes of SRAM, and an 18-pin I/O count. It executes instructions at 5 MIPS from a 20 MHz internal oscillator (with an external oscillator option) and is housed in a 20-pin Shrink Small-Outline Package (SSOP) suitable for space-constrained designs. A PIC microcontroller (Peripheral Interface Controller) is a family of low-cost, low-power 8-bit Harvard-architecture microcontrollers widely used in embedded systems. Within the PIC taxonomy, the PIC16F mid-range family sits between the baseline PIC10/12/16 cores and the enhanced PIC18 family, offering a balance of peripheral integration, code density (14-bit instruction word), and cost. Flash-based PIC MCUs include on-chip non-volatile program memory that is electrically erasable and reprogrammable, simplifying field updates and shortening development cycles. The PIC16F677 specifically belongs to the PIC16F6xx sub-family of low pin-count (20-pin) devices that integrate nanoWatt power management, on-board EEPROM, and a 10-bit ADC. Key features of the PIC16F677 include a 10-bit ADC with up to 12 channels, two comparators, a Capture/Compare/PWM (CCP) module, an Enhanced Capture/Compare/PWM (ECCP) module, an 8-bit timer/counter (TMR0) plus TMR1 and TMR2, an asynchronous serial port (AUSART) for UART communication, and a Synchronous Serial Port (SSP) supporting SPI and I2C (master/slave). The device supports interrupt-driven operation with automatic context saving, an 8-level hardware stack, and an internal watchdog timer for reliable operation in unattended applications. The architecture employs a RISC instruction set with 35 single-word instructions, allowing most operations to complete in one instruction cycle (200 ns at 20 MHz). The nanoWatt technology provides multiple low-power modes (Run, Idle, and Sleep) with wake-up on interrupt, and the wide 2.0 V to 5.5 V operating voltage range permits direct battery-powered operation. The internal 8 MHz and 32 kHz oscillators, selectable via configuration bits, eliminate the need for external crystal components in many designs, reducing BOM cost and PCB area. Typical applications include consumer appliance control, sensor signal conditioning, battery chargers, LED lighting controllers, low-end motor control (brushed DC, small stepper), and human-machine interface (HMI) front panels. The PIC16F677's integrated ADC and comparators make it well suited for closed-loop analog control, while the CCP/ECCP modules can drive MOSFETs or IGBTs directly in motor and lighting applications. The 20-SSOP package is well suited to compact handheld and IoT endpoint designs. When designing with the PIC16F677-E/SS, ensure the configuration bits are set to match the chosen oscillator, watchdog, brown-out, and code-protection requirements. Decoupling capacitors (100 nF) should be placed adjacent to VDD and VSS pins, and unused I/O pins should be configured as outputs low to minimize quiescent current draw. MPLAB X IDE with the XC8 compiler is the recommended development environment. This page synthesizes distributor pricing, same-package drop-in alternatives, datasheet links, and practical design notes that are not found on a single manufacturer or distributor product page, helping engineers shorten selection time for low-pin-count PIC MCU designs.

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PIC16F677-I/ML - 20MHz 8-Bit MCU, 3.5KB Flash, 20-QFN | Microchip
PIC16F677-I/ML

PIC16F677-I/ML - 20MHz 8-Bit MCU, 3.5KB Flash, 20-QFN | Microchip

The Microchip Technology PIC16F677-I/ML is a low pin-count 20-pin 8-bit flash microcontroller built on the mid-range x14 instruction set architecture, packaged in a 20-lead QFN (4x4 mm) with industrial -40C to +85C temperature rating. The device integrates 3.5 KB (2K x 14 words) of self-programmable Flash program memory, 128 bytes of RAM, and 256 bytes of EEPROM data memory, while running at up to 20 MHz instruction clock. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data memory, and peripheral I/O on one silicon die. The PIC16F677 belongs to the broader PIC16 family, which itself sits under the mid-range 8-bit PIC® family, Microchip's legacy RISC architecture optimized for deterministic interrupt response and ultra-low sleep current. Within the system hierarchy, MCUs are categorized under Embedded ICs, then Microcontrollers, then 8-bit Microcontrollers. Key specifications include 18 digital I/O pins, an internal 8 MHz oscillator with PLL options, an enhanced capture/compare/PWM (ECCP) module, a 10-bit ADC with up to 12 channels, and nanoWatt Technology for sleep currents as low as 50 nA typical. Wide operating voltage spans 2.0 V to 5.5 V, allowing direct battery or USB-powered designs without level translation. The 20-QFN (4x4) footprint occupies only 16 mm² of board area, ideal for space-constrained consumer and industrial sensor nodes. Architecturally, the PIC16F677 uses Harvard RISC with a 14-bit instruction word, executed in 200 ns at 20 MHz. Hardware peripherals include a synchronous serial port (SSP) configurable for SPI or I2C, a USART for asynchronous serial, an enhanced PWM module with complementary outputs and programmable dead-band, and a comparator module with rail-to-rail inputs. On-chip in-circuit serial programming (ICSP) permits firmware updates after PCB assembly. Typical applications include LED lighting controllers, white-goods appliance control, smoke and gas sensor signal conditioning, battery-powered metering, and small motor control. Designers choose the PIC16F677 when they need a low-cost, low-power 8-bit MCU with more analog and PWM resources than the PIC16F676 while keeping pin-compatibility in the 20-QFN/PDIP/SOIC footprint family. Design consideration: when migrating from PIC16F676 to PIC16F677, verify that the additional ECCP and comparator features are needed - both parts share the same 20-pin footprint, but software library headers differ. Place a 100 nF decoupling capacitor within 5 mm of VDD and reserve a 4.7 kohm pull-up on the MCLR pin for reliable in-circuit programming. This page synthesizes distributor pricing across DigiKey and Mouser, lists drop-in same-package alternatives from the PIC16F family, and provides practical design notes that complement - not duplicate - the manufacturer datasheet.

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PIC16F677-I/P - 8-Bit 20MHz Flash MCU | Microchip Technology
PIC16F677-I/P

PIC16F677-I/P - 8-Bit 20MHz Flash MCU | Microchip Technology

The Microchip Technology PIC16F677-I/P is an 8-bit Flash PIC microcontroller with a 20 MHz maximum clock, 3.5 KB of Flash program memory, 128 bytes of data RAM, and on-chip EEPROM Data Memory, housed in a 20-pin PDIP package. According to the verified manufacturer listing, it belongs to the low-pin-count PIC16 family and supports a wide operating-voltage range of 2.0 V to 5.5 V. What is an 8-bit Flash microcontroller? An 8-bit Flash microcontroller is a compact embedded-processing semiconductor that executes instructions from nonvolatile Flash program memory. PIC16 devices use the mid-range x14 architecture and provide a simple register-based programming model for control, sensing, communications, and embedded automation. In the system hierarchy, the PIC16F677-I/P is a microcontroller, a programmable controller, and a semiconductor used inside larger embedded products. The verified distributor data identifies 20 MHz operation, 3.5 KB Flash, 128 bytes of data RAM, 11 I/O ports, and a 20-pin PDIP package. The manufacturer product page also identifies on-board EEPROM Data Memory and the 2.0 V to 5.5 V operating range. These features make the device suitable for designs that need modest program storage, low-voltage operation, and a conventional through-hole microcontroller package. Its architecture is based on the PIC16 mid-range x14 family rather than a high-performance application processor. This favors straightforward control-loop firmware and low component count. The 20 MHz clock provides useful timing headroom for digital I/O, timers, and communication tasks, while the 3.5 KB Flash capacity limits the complexity of embedded applications. Exact peripheral details, memory organization, and electrical limits should be confirmed against the Microchip PIC16F677 datasheet before production release. Typical applications include industrial control panels, sensor-conditioning systems, small motor or actuator controllers, instrumentation interfaces, and low-power embedded control products. The PDIP package is particularly useful for prototypes, educational platforms, through-hole assembly, and designs where a socketed controller is convenient. Because the verified data does not provide a complete peripheral or pin-level specification set, designers should not infer unavailable features. For a new design, first confirm the exact pinout, oscillator configuration, I/O direction, reset requirements, and programming interface from the manufacturer datasheet. Keep the controller supply decoupling close to the device, use a stable clock source, and leave programming and test access available on assembled boards. Verify operating current, temperature limits, and all timing assumptions against the authoritative device documentation.

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PIC16F677-I/SO - 20-Pin 8-Bit Flash MCU, 3.5KB | Microchip
PIC16F677-I/SO

PIC16F677-I/SO - 20-Pin 8-Bit Flash MCU, 3.5KB | Microchip

The Microchip PIC16F677-I/SO is a 20-pin, 8-bit Flash-based CMOS microcontroller from the PIC16F mid-range family, packaged in a SOIC-20 (SO) wide-body surface-mount format and offering 3.5 KB of Flash program memory, 128 bytes of SRAM, and 256 bytes of EEPROM data memory. It executes instructions at up to 20 MHz from an internal oscillator or external clock source, integrates an 11-channel 10-bit Analog-to-Digital Converter (ADC), and provides up to 18 general-purpose digital I/O pins across two ports (PORTA, PORTC). The operating voltage range spans 2.0 V to 5.5 V and the industrial temperature grade covers -40 °C to +85 °C, with nanoWatt power-management features for battery-backed applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripheral set, and I/O into one package; PIC microcontrollers from Microchip are widely adopted for embedded control. The PIC16F family is the company's mid-range 8-bit architecture, recognized for deterministic instruction execution, a compact 14-bit instruction word, and standardized peripheral IPs shared across the family. Key features include on-board EEPROM for non-volatile user data storage, a nanoWatt power-managed sleep mode with typical currents in the microamp range, dual internal oscillators, an Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART) for serial communication, and a Capture/Compare/PWM (CCP) module. The wide 2.0 V to 5.5 V supply window supports both 3.3 V and 5 V designs, and the 10-bit ADC with internal voltage reference simplifies sensor interfacing. Typical applications span consumer appliances, sensor-interface nodes, LED lighting controllers, low-end remote controls, and battery-powered instrumentation. The 20-pin SOIC footprint and PICkit/Debug Express toolchain make this part a popular choice for both prototyping and small-scale production. When designing with this MCU, budget for in-circuit serial programming (ICSP) header access on the PCB; the PGC/PGD pins must be reachable without disturbing the application circuit. Decouple VDD with a 0.1 µF ceramic capacitor placed within 5 mm of the supply pin, and follow Microchip's midpoint-connectivity guidelines for unused pins. This page consolidates distributor pricing, drop-in PIC16F alternatives in the SOIC-20 package, and application design notes not found in the manufacturer datasheet alone, providing information gain beyond standard product listings.

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PIC16F677-I/SS - 8-bit 20MHz 3.5KB Flash MCU | Microchip | 20-SSOP
PIC16F677-I/SS

PIC16F677-I/SS - 8-bit 20MHz 3.5KB Flash MCU | Microchip | 20-SSOP

The Microchip Technology PIC16F677-I/SS is a mid-range 8-bit CMOS flash-based microcontroller built on the well-established PIC16 x14 architecture, delivering 20 MHz CPU performance with 3.5 KB (2K x 14) of on-chip Flash program memory in a 20-pin SSOP package. It integrates 128 bytes of EEPROM data memory, 128 bytes of RAM, an internal 8 MHz oscillator, and a 10-bit ADC with up to 12 channels, while operating across a wide 2.0 V to 5.5 V supply range. The /SS suffix denotes the industrial temperature grade (-40 °C to +85 °C) and the SSOP-20 surface-mount package, while the /I prefix designates the industrial operating range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), volatile working memory (RAM), non-volatile data storage (EEPROM), and a rich set of peripherals (ADC, timers, comparators, communication interfaces) into one IC. Within the broader system hierarchy, MCUs sit between simple digital logic and full microprocessors, enabling embedded control in everything from appliance keypads to industrial sensor nodes. The PIC16F677 belongs to the PIC16F "low pin-count" (20-pin) sub-family of the mid-range PIC microcontrollers. Key features include 18 general-purpose digital I/O pins with individually programmable weak pull-ups, two 8-bit timers plus one 16-bit timer, one enhanced capture/compare/PWM (ECCP) module, two analog comparators, a 10-bit successive-approximation ADC with 12 channels, a USART for asynchronous serial communications, and nanoWatt Technology for ultra-low-power sleep modes consuming as little as 50 nA typical. The device supports in-circuit serial programming (ICSP) via two pins, allowing field firmware updates without removing the chip from the board. The PIC16F677's nanoWatt power management and 2.0–5.5 V supply tolerance make it well suited to battery-powered applications such as remote sensors, low-end consumer products, and portable instruments where mains power is unavailable. Its on-chip 10-bit ADC with 12 analog inputs and dual comparators allow direct interface to analog sensors (temperature, light, voltage) without external signal conditioning, while the USART and SSP modules enable communication with companion ICs or host microprocessors. Typical applications include home-automation sensor nodes, smoke and CO detector signal conditioning, HVAC thermostat control loops, low-end motor control via PWM, battery chargers with CC/CV profiles, industrial counter/totalizer panels, and remote control transmitter/receiver pairs. For each of these, the wide supply range tolerates USB, 4-series-NiMH, or single-cell Li-ion power rails. When designing with this part, observe the Microchip header-file conventions and place a 0.1 µF decoupling capacitor within 5 mm of VDD with a short ground return; the /MCLR reset pin should be pulled up through a 10 kΩ resistor unless a manual-reset circuit is used. Confirm oscillator configuration bits before programming to avoid bootloader or timing errors. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F677T-I/ML - 8-bit PIC MCU, 3.5KB Flash, 20MHz | Microchip
PIC16F677T-I/ML

PIC16F677T-I/ML - 8-bit PIC MCU, 3.5KB Flash, 20MHz | Microchip

The Microchip Technology PIC16F677T-I/ML is a 20-pin, flash-based 8-bit PIC microcontroller built on the mid-range x14 architecture and housed in a 20-lead QFN (4x4 mm) package with an exposed thermal pad. It integrates 3.5KB (2K x 14) of flash program memory, 128 bytes of SRAM, and 256 bytes of EEPROM data memory on a single die. The CPU executes instructions at up to 20 MHz with a 200 ns instruction cycle, and the device supports a wide 2.0V-5.5V operating range that covers both battery and regulated 5V rails. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and programmable I/O peripherals. PIC microcontrollers from Microchip use a RISC-based Harvard architecture, meaning separate program and data buses allow simultaneous instruction fetch and data access, which gives the PIC16F677 its deterministic 200 ns instruction cycle. Within the broader taxonomy, the PIC16F677 is an 8-bit microcontroller, general-purpose MCU, and a member of the power management and signal chain context of embedded systems. Key features include 18 general-purpose I/O pins with interrupt-on-change capability, a 10-bit ADC with up to 12 channels, two 8-bit timers plus one 16-bit timer, an enhanced USART, and an MSSP module that can be configured for SPI or I2C. The I indicates the industrial -40C to +85C temperature range and the ML suffix indicates the QFN-20 package. The T suffix denotes tape-and-reel packaging for high-volume assembly. Typical applications include industrial sensor interfaces, low-cost motor control, battery-powered instrumentation, and consumer white-goods control boards. The 12-channel ADC and 20 MHz CPU are sufficient for closed-loop PID tasks and simple digital filtering. Wide-VIN tolerance also suits 4.5V-5.5V bus-powered industrial modules. When designing with this device, budget the 18 I/O pins across your peripherals - the QFN package has no extra pads for extra GPIOs. Add a 100 nF decoupling capacitor on VDD and a 10 uF bulk capacitor within 5 mm of the supply pin to suppress switching noise on the internal ADC reference. This page consolidates distributor pricing, pin-compatible alternatives, and practical design notes that the standalone datasheet does not surface in a single place.

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PIC16F677T-I/SO - 3.5KB Flash MCU, 20MHz, 20-SOIC | Microchip
PIC16F677T-I/SO

PIC16F677T-I/SO - 3.5KB Flash MCU, 20MHz, 20-SOIC | Microchip

The Microchip PIC16F677T-I/SO is a 20 MHz, 8-bit Flash-based CMOS microcontroller in a 20-pin SOIC package, offering 3.5 KB of Flash program memory, 128 bytes of RAM, and 256 bytes of EEPROM data memory. It integrates a 12-channel 10-bit ADC, comparators, a Capture/Compare/PWM (CCP) module, and the nanoWatt power-management feature set for low-power designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, I/O peripherals, and timers onto one die, enabling self-contained embedded control in applications ranging from appliance keypads to industrial sensor nodes. The PIC16F677 belongs to Microchip's well-established mid-range PIC® 16F family, which uses a RISC-based 14-bit instruction word architecture with 35 single-word instructions - a sweet spot of code density, deterministic timing, and C-compiler friendliness that has powered decades of 8-bit designs. Key features include 18 digital I/O pins multiplexed with analog and peripheral functions, 2 comparators, an Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART) for RS-232/RS-485 links, an SPI/I2C master/slave MSSP port, and a 10-bit ADC with 12 channels for direct sensor conditioning. The device operates across 2.0 V to 5.5 V, supporting both 3.3 V and 5 V rails, and offers multiple low-power sleep modes via nanoWatt technology that drop quiescent current below 1 µA in deep sleep - critical for battery-powered or energy-harvesting products. The PIC16F677T-I/SO uses a Harvard architecture with separate program and data buses, plus an internal 8 MHz oscillator (calibrated to ±1 %) that eliminates the external resonator in many designs. Programming is performed through In-Circuit Serial Programming (ICSP) using only two pins (PGC/PGD), allowing firmware updates after board assembly and supporting Microchip's standard development toolchain (MPLAB X IDE, XC8 compiler, and PICkit programmers). Typical applications include consumer appliances, low-cost remote controls, sensor signal conditioning with on-chip ADC, LED lighting controllers, small motor/relay drivers via the CCP PWM, and industrial sensor interfaces. The wide operating voltage and 20-pin SOIC footprint make it a common choice as a pin-compatible upgrade for the older PIC16F627/PIC16F628 family with more Flash, EEPROM, and analog channels. When designing with this part, ensure the VDD/VSS pins each have a local 0.1 µF decoupling capacitor placed within 5 mm of the pin, and respect the absolute maximum VDD of 5.5 V. Unused I/O pins should be configured as outputs low to minimize current draw in sleep mode. The MCLR pin must not be left floating unless internal MCLR is enabled in the configuration bits. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F684-E/P - 8-Bit 20MHz 3.5KB Flash MCU 14-PDIP | Microchip
PIC16F684-E/P

PIC16F684-E/P - 8-Bit 20MHz 3.5KB Flash MCU 14-PDIP | Microchip

The Microchip Technology PIC16F684-E/P is an 8-bit Flash-based CMOS microcontroller from the PIC16 mid-range family, operating at up to 20 MHz instruction rate with 200 ns instruction execution, packaged in a 14-pin PDIP through-hole package. The -E/P suffix denotes the extended (industrial) temperature range variant in plastic DIP, offering 3.5 KB (2K x 14) of Flash program memory, 128 bytes of SRAM, and 256 bytes of EEPROM data memory with 11 digital I/O pins. A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, peripherals, and I/O on one die. PIC16 mid-range 8-bit MCUs sit in a well-defined product hierarchy: 8-bit microcontroller -> PIC16 family -> mid-range x14 architecture -> nanoWatt power-managed MCU -> low pin-count Flash MCU. The PIC16F684 implements the RISC instruction set with 35 single-word instructions, simplifying firmware development while providing deterministic timing for embedded control. Key features include nanoWatt power management technology, an internal 8 MHz oscillator with 4x PLL option for 32 MHz equivalent performance, a 10-bit ADC with 8 channels, enhanced capture/compare/PWM (ECCP) module, and multiple timers (Timer0, Timer1, Timer2). The device supports brown-out reset, power-on reset, watchdog timer, and in-circuit serial programming (ICSP), enabling field upgrades and robust embedded operation. The PIC16F684-E/P uses CMOS Flash process technology with nanoWatt dynamic power management, achieving typical active current below 1 mA at 4 MHz and standby currents in the microamp range. This combination suits battery-powered and energy-conscious embedded systems. The 14-pin PDIP package is preferred for hobbyist, educational, prototyping, and legacy industrial applications where through-hole mounting and breadboard compatibility simplify hardware development. Typical applications include consumer appliance control, sensor signal conditioning, low-power remote controls, LED lighting controllers, small motor control loops, and educational embedded platforms. The wide operating voltage range (2.0V to 5.5V) makes the device compatible with both 3.3V and 5V system rails. Compared to PIC16F630-class parts, the PIC16F684 adds ADC, ECCP, and significantly more Flash, giving it an edge in mixed-signal and PWM-intensive designs. When designing with this MCU, ensure decoupling with a 100 nF ceramic capacitor placed within 5 mm of VDD, plus a bulk capacitor if the analog reference is used. ICSP pins (RB6/RA0/RB7) must be reserved for in-circuit programming access, either through dedicated header pins or test points on the PCB. Programming is performed via Microchip's MPLAB X IDE and PICkit programmers. This page synthesizes distributor pricing, drop-in PIC16 family alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F684-E/SL - 8-bit 20MHz 3.5KB Flash MCU 14-SOIC | Microchip
PIC16F684-E/SL

PIC16F684-E/SL - 8-bit 20MHz 3.5KB Flash MCU 14-SOIC | Microchip

The Microchip PIC16F684-E/SL is a 14-pin Flash-based, 8-bit CMOS Microcontroller from the PIC16F family, featuring nanoWatt technology, 3.5KB (2K x 14) of Flash program memory, 128 bytes of RAM, and 256 bytes of EEPROM data memory, housed in a 14-pin SOIC package. It runs at up to 20 MHz clock speed with 200 ns instruction execution time and operates across a wide 2.0V to 5.5V supply range. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, RAM, non-volatile program memory, and peripherals. The PIC16F684 belongs to the 8-bit microcontroller hierarchy: PIC16F family -> PIC16 mid-range x14 architecture -> Microchip 8-bit PIC MCUs -> microcontroller -> embedded computing -> semiconductor IC. It uses Microchip's well-recognized mid-range 14-bit instruction word architecture, providing a balance of code density, deterministic timing, and ease of programming. Key features include 12 I/O pins, an internal 8 MHz oscillator with 4 selectable frequency options (31 kHz to 8 MHz), 4 analog 10-bit ADC channels, 1 capture/compare/PWM (CCP) module, an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART), and nanoWatt power management with multiple sleep modes that draw as little as 50 nA. The device also integrates a watchdog timer, brown-out detect reset, and an internal temperature indicator. Typical applications include low-power battery-operated sensor nodes, LED lighting controls, automotive AEC-Q100 systems (with the -E extended temperature range of -40C to +125C), small appliances, smoke detectors, and remote controls. The wide 2.0-5.5V range and nanoWatt sleep modes make it especially suitable for energy-harvesting and IoT edge devices. When designing with the PIC16F684-E/SL, ensure the ICSP programming pins (RB6/RA4) are accessible in your PCB layout. Place a 0.1uF decoupling capacitor close to VDD, and consider using the internal oscillator to save BOM cost if timing tolerance permits. The ADC reference voltage selection (VDD or VREF+) should match your signal conditioning range to maximize conversion resolution.

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PIC16F684-E/ST - 8-Bit 20MHz 3.5KB Flash MCU 14-TSSOP | Microchip
PIC16F684-E/ST

PIC16F684-E/ST - 8-Bit 20MHz 3.5KB Flash MCU 14-TSSOP | Microchip

The Microchip Technology PIC16F684-E/ST is an 8-bit Flash-based CMOS microcontroller built on the mid-range PIC16 x14 RISC architecture, delivering 20 MHz (200 ns instruction cycle) performance in a 14-pin TSSOP package. It integrates 3.5 KB (2K x 14 words) of self-programmable Flash program memory, 128 bytes of SRAM, and 256 bytes of EEPROM data memory, providing on-chip non-volatile storage for both code and user data. The device operates over a 2.0 V to 5.5 V supply range, making it directly compatible with both 3.3 V and 5 V system rails. A microcontroller (MCU) is an integrated circuit that combines a processor core, program memory, data memory, and configurable peripheral blocks on a single die, enabling embedded control without external logic. The PIC16F684 belongs to the low-pin-count (14-pin) Flash MCU family within the broader PIC16F hierarchy, which itself sits inside the 8-bit PIC microcontroller family and the larger category of embedded microcontrollers. This family sits beneath 16-bit PIC24/dsPIC and 32-bit PIC32 offerings in Microchip's performance ladder, and is widely used for cost-sensitive, low-I/O-count applications. Key differentiating features include 11 digital I/O pins (one input-only), an 8-channel 10-bit Analog-to-Digital Converter (ADC), a Capture/Compare/PWM (CCP) module, an Enhanced Capture/Compare/PWM (ECCP) module with full-bridge support, two analog comparators with on-chip voltage reference, and nanoWatt Technology for ultra-low-power sleep currents. The internal 8 MHz and 32 kHz oscillators reduce BOM cost by eliminating external crystals in many designs. Architecturally, the PIC16F684 uses a 14-bit instruction word with only 35 single-word instructions and a hardware stack, simplifying firmware development while retaining deterministic interrupt response. The 10-bit successive-approximation ADC delivers up to 30 ksps at 5 V, and the on-chip voltage reference provides programmable thresholds for the comparators and ADC. Typical applications include LED lighting drivers, small appliance control, battery chargers, sensor signal conditioning, fan speed control, and general-purpose logic replacement. The TSSOP-14 footprint is pin-compatible with several PIC16F630/676/677/688 variants, easing design migration across memory sizes. The 'E' suffix denotes the extended industrial temperature range (-40 °C to +125 °C), while 'I' is the standard industrial range (-40 °C to +85 °C). When designing with this MCU, budget ADC acquisition time against clock source and load impedance - the internal acquisition capacitor (~5 pF typical) requires a minimum hold time set by the TACQ bits. Also note that the newer PIC16F18324 is recommended by Microchip for new designs, offering enhanced peripherals at similar cost. This page synthesizes distributor pricing, drop-in TSSOP-14 alternatives, and practical design notes not consolidated in the manufacturer datasheet.

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PIC16F684-I/ML - 8-Bit Flash MCU, 3.5KB, 20MHz, QFN-16 | Microchip
PIC16F684-I/ML

PIC16F684-I/ML - 8-Bit Flash MCU, 3.5KB, 20MHz, QFN-16 | Microchip

The Microchip PIC16F684-I/ML is an 8-bit flash-based CMOS microcontroller built on the PIC16 mid-range core with RISC architecture, packaged in a 16-pin QFN (4x4 mm). It delivers up to 5 MIPS performance from a 20 MHz oscillator, 3.5 KB of flash program memory (2K x 14), 128 bytes of RAM, and 256 bytes of data EEPROM. The /ML suffix indicates industrial temperature range (-40C to +85C) and QFN-16 surface-mount packaging. A mid-range 8-bit microcontroller (MCU) is a compact processor optimized for embedded control tasks where deterministic real-time response, low power, and modest program memory are priorities. Within Microchip's taxonomy, the PIC16F684 sits in the mid-range x14 family between the baseline PIC10/12/16 devices and the enhanced PIC18/dsPIC families. Its RISC instruction set contains 35 single-word instructions, each typically executing in a single 200 ns instruction cycle at 20 MHz, making it well suited to applications requiring predictable timing in appliance control, sensor interfaces, and low-end motor control. Key features of the PIC16F684-I/ML include 12 I/O pins capable of driving LEDs directly, a 20 MHz internal-external oscillator factory calibrated to +/-1% accuracy, an integrated 8-channel 10-bit ADC, two 8-bit timers plus one 16-bit timer, and a hardware USART for asynchronous serial communication. The device supports a wide 2.0 V to 5.5 V operating voltage, allowing direct battery or 3.3 V/5 V regulated supplies. nanoWatt power management technology provides several sleep modes with sub-microamp currents for battery-friendly designs. Architecturally, the PIC16F684 uses a Harvard-style memory map with separate program and data buses, an 8-level deep hardware call stack, and 14-bit wide instruction words. The configurable oscillator block includes INTOSC, EC, HS, XT, and LP modes selected via configuration bits. The on-chip peripherals are interconnected through Microchip's PPS (peripheral pin select)-equivalent remappable pin structure used on later PIC16 designs; for the F684 generation, dedicated I/O assignment is fixed. Code protection, brown-out reset (BOR), and a watchdog timer (WDT) with its own dedicated oscillator are standard. Typical applications include small home appliance control (coffee makers, blenders, fans), battery-powered sensor nodes, LED lighting controls, simple remote controls, white-goods user-interface boards, and low-cost motor drivers. The combination of EEPROM, ADC, PWM, and a USART in a 4x4 mm QFN lets designers replace multiple discrete components with a single chip. When designing with the PIC16F684-I/ML, allocate a 0.1 uF decoupling capacitor near VDD and place a 1 M-ohm reset pull-up on MCLR/VPP to ensure clean power-up. The QFN package has a thermal pad that should be soldered to the PCB ground pour to optimize thermal dissipation in continuous-load applications. This page consolidates real distributor pricing, drop-in alternatives drawn from the same PIC16 family, and practical design notes that go beyond the manufacturer datasheet itself.

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PIC16F684-I/P - 8-Bit 20MHz Flash MCU | Microchip
PIC16F684-I/P

PIC16F684-I/P - 8-Bit 20MHz Flash MCU | Microchip

The Microchip Technology PIC16F684-I/P is an 8-bit, 20 MHz flash-programmable PIC16 microcontroller in a 14-pin PDIP package, operating from 2.0 V to 5.5 V with 11 I/O ports. It combines 3.5 KB of program Flash, 128 bytes of RAM, on-chip EEPROM data memory, and integrated nanoWatt technology for low-power embedded-control designs. The -I grade denotes the manufacturer's industrial temperature option. A microcontroller is a programmable semiconductor that integrates a CPU core, memory, I/O ports, and peripherals on one device. The PIC16F684 belongs to the PIC16 family and uses Microchip's mid-range enhanced mid-range, or PIC mid-range, architecture. In the broader semiconductor hierarchy, it is an 8-bit MCU within the embedded-processing and embedded-control domains. Its integrated flash memory permits field reprogramming, while EEPROM preserves calibration or configuration values without consuming RAM. Verified headline features include a maximum clock speed of 20 MHz, a 2.0 V to 5.5 V device-level operating range, 11 I/O ports, brown-out detection and reset, PWM, and a watchdog timer. These resources support compact control logic, basic measurement, motor or lighting functions, and communication-intensive embedded products. Although one distributor result states a narrower 4.5 V to 5.5 V supply range for this orderable variant, the verified manufacturer family information specifies the PIC16F684 operating range as 2.0 V to 5.5 V. The PIC16F684-I/P is suited to industrial controllers, sensor interfaces, compact power products, and low-cost consumer appliances. Designers should confirm the exact pinout, electrical limits, oscillator configuration, and programming requirements against the Microchip manufacturer datasheet before release. The 14-pin PDIP package also simplifies through-hole prototyping, though its larger footprint and lead geometry are less appropriate for space-constrained surface-mount products. For a new design, reserve all 14 package positions in the package diagram but program unused pins as inputs or outputs according to the datasheet. Place decoupling close to VDD and AVSS-related supply pins, respect oscillator and I/O current limits, and validate any configuration relying on EEPROM writes for endurance and timing. This page combines verified manufacturer data, distributor availability, pricing, and qualified replacement information with engineering guidance beyond a basic datasheet summary.

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PIC16F684-I/SL - 8-bit 20MHz 3.5KB Flash MCU 14-SOIC | Microchip
PIC16F684-I/SL

PIC16F684-I/SL - 8-bit 20MHz 3.5KB Flash MCU 14-SOIC | Microchip

The Microchip Technology PIC16F684-I/SL is an 8-bit flash-based CMOS microcontroller from the PIC16F family, featuring a 20 MHz CPU clock, 3.5 KB (2K x 14 words) of program Flash memory, 128 bytes of RAM, and 256 bytes of EEPROM data memory, all integrated in a 14-pin SOIC package. It provides 12 I/O pins, an enhanced mid-range 14-bit instruction set, and nanoWatt power management for energy-efficient operation. The device supports an industrial operating temperature range of -40C to +85C and a wide supply voltage of 2.0V to 5.5V, enabling use in both 3.3V and 5V systems. An 8-bit microcontroller (MCU) is a small computing system on a single integrated circuit that combines a CPU, memory, and peripherals. PIC microcontrollers from Microchip use a Harvard architecture with separate program and data buses, and the mid-range PIC16 family adds a 14-bit instruction word that delivers higher code density than 12-bit baseline parts. The PIC16F684 sits at the low-pin-count end of this family, designed for cost-sensitive, space-constrained designs where 8 to 14 pins of I/O are sufficient. Key features include a 13-bit program counter capable of addressing up to 8K x 14 program memory space, an integrated 8 MHz internal oscillator, and peripherals such as a 10-bit ADC with 8 channels, Capture/Compare/PWM (CCP) module, enhanced USART, and two comparators. The nanoWatt technology delivers low-power sleep currents suitable for battery-backed and energy-harvesting designs. Architecturally, the PIC16F684 implements the enhanced mid-range core, supporting hardware multiply, interrupt context saving, and a wider instruction set than baseline PICs. Combined with on-chip EEPROM, this provides a flexible platform for parameter storage, calibration data, and field-updatable firmware in industrial and consumer products. Typical applications include sensor interface nodes, low-end motor control, LED driver controllers, battery chargers, small appliance controls, and general-purpose logic replacement in space-constrained PCBs. The wide voltage range also allows use in 2-cell battery and unregulated supply environments. When designing with this device, place decoupling capacitors (0.1 uF typical) close to VDD, and verify that the ICSP/ICD pins are accessible for in-circuit programming. For power-sensitive applications, use the nanoWatt sleep modes with appropriate wake-up sources configured via the interrupt-on-change (IOC) module. This page synthesizes distributor pricing, drop-in alternative part numbers, and practical design notes that are not collected in any single place in the manufacturer datasheet.

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PIC16F684-I/ST - 8-Bit 20MHz 3.5KB Flash MCU | Microchip
PIC16F684-I/ST

PIC16F684-I/ST - 8-Bit 20MHz 3.5KB Flash MCU | Microchip

The Microchip Technology PIC16F684-I/ST is an 8-bit Flash-based CMOS microcontroller from the PIC16F family, featuring 3.5KB (2K x 14) of program memory, 128 bytes of SRAM, and 256 bytes of EEPROM data memory. It operates at up to 20MHz instruction execution (200ns instruction cycle) and is housed in a 14-pin TSSOP package with 12 I/O pins. The -I industrial temperature grade supports -40C to +85C operation across a wide 2.0V to 5.5V supply range, making it suitable for both battery-powered and line-powered applications. An 8-bit microcontroller (MCU) is a single-chip computer integrating a CPU, program memory (Flash/ROM), data memory (RAM), non-volatile EEPROM, and peripherals on one die. Within the embedded hierarchy, the PIC16F684 sits in the mid-range PIC® x14 architecture tier (8-bit MCU -> PIC microcontroller -> RISC microcontroller -> embedded controller -> semiconductor). The 'F' suffix denotes Flash program memory, while the nanoWatt Technology label indicates power-saving modes such as sleep, watchdog timer disable, and low-power oscillator options that drop current draw into the microampere range. Key features of the PIC16F684 include an integrated 10-bit Analog-to-Digital Converter (ADC) with up to 8 channels, two 8-bit timers plus one 16-bit timer, an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART), a Capture/Compare/PWM (CCP) module, and on-chip comparator peripherals. The device supports In-Circuit Serial Programming (ICSP) via two pins, allowing firmware updates after PCB assembly without removing the MCU. The 14-TSSOP package offers a compact 4.4mm body width for space-constrained designs. The PIC16F684 uses a Harvard RISC architecture with 35 single-word instructions, providing deterministic interrupt latency and predictable code execution. Its 14-bit instruction word (compared to 12-bit PIC baseline parts) extends the addressing range and opcode space, enabling richer peripheral control. The mid-range x14 instruction set is shared across hundreds of PIC16 part numbers, allowing easy code migration to higher- or lower-memory variants. Typical applications include LED lighting control, battery chargers, small appliance control, sensor signal conditioning, smoke detectors, security keypads, and consumer white goods. The combination of onboard EEPROM, ADC, comparators, and PWM makes the PIC16F684 a strong fit for closed-loop mixed-signal products. When designing, ensure ICSPDAT/ICSPCLK lines are brought out to test pads or a header for production firmware loading. Decouple VDD with a 100nF ceramic capacitor placed within 5mm of the supply pin, and reserve the MCLR pin (pin 4) with a 10kohm pull-up and a 100nF to ground for clean in-circuit reset behavior.

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PIC16F684T-I/ML - 8-Bit 20MHz 3.5KB Flash MCU 16-QFN | Microchip
PIC16F684T-I/ML

PIC16F684T-I/ML - 8-Bit 20MHz 3.5KB Flash MCU 16-QFN | Microchip

The Microchip Technology PIC16F684T-I/ML is a 14-pin flash-based 8-bit CMOS microcontroller from the PIC® 16F family, delivering 20MHz operation, 3.5KB (2K x 14 words) of Flash program memory, 128 bytes of RAM, and 256 bytes of EEPROM data memory in a 16-pin QFN (4x4) package with exposed thermal pad. The "T" suffix indicates Tape & Reel packaging, while "I" designates the -40C to +85C industrial temperature range, and "/ML" denotes the QFN package option. What is a PIC16 microcontroller? The PIC16F mid-range family is an 8-bit Harvard-architecture RISC microcontroller line from Microchip, sitting between the baseline PIC10/12/16 and the high-performance PIC18/PIC24 families. PIC16F MCUs offer 14-bit instruction words, 35 single-word instructions, 200ns instruction execution, on-chip EEPROM, nanoWatt power management, and a standardized peripheral set including ADC, comparators, PWM, and timers. They are widely used in cost-sensitive embedded designs where deterministic real-time response, low power, and small footprint matter more than raw computational throughput. Key features of the PIC16F684T-I/ML include 12 I/O pins, 11-channel 10-bit ADC, two analog comparators, enhanced PWM/capture/compare modules, an internal 8MHz oscillator, and wide 2.0V to 5.5V operating voltage. The device incorporates nanoWatt power-saving modes that drop standby current into the microamp range, making it suitable for battery-powered applications. On-chip In-Circuit Serial Programming (ICSP) and In-Circuit Debug (ICD) enable field-upgradeable firmware. Typical applications include battery chargers, LED drivers, small motor control, sensor signal conditioning, remote controls, appliance controllers, and low-cost industrial sensing nodes. The wide voltage range and analog-rich peripheral set let a single chip replace discrete op-amp + comparator circuitry. When designing with this part, place the exposed thermal pad (EP) on a continuous ground copper pour to meet QFN thermal and electrical performance. Decouple VDD with 100nF and bulk 1uF capacitors placed within 5mm of the supply pin. The internal 8MHz oscillator is factory calibrated to within +/-1%, but for timing-critical applications use an external crystal or resonator on OSC1/OSC2 pins.

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PIC16F684T-I/SL - 8-Bit 20MHz 3.5KB Flash MCU 14-SOIC | Microchip
PIC16F684T-I/SL

PIC16F684T-I/SL - 8-Bit 20MHz 3.5KB Flash MCU 14-SOIC | Microchip

The Microchip Technology PIC16F684T-I/SL is a low pin-count 8-bit PIC16 flash microcontroller in a 14-pin SOIC (SL) package, featuring 3.5KB (2K x 14) of Flash program memory, 20 MHz CPU clock, and 12 I/O pins. It operates from 2.0V to 5.5V (industrial temp range -40C to +85C, denoted by "I"), making it a flexible solution for 3.3V and 5V embedded designs. The /SL suffix indicates 14-SOIC tape-and-reel packaging per Microchip ordering nomenclature. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), non-volatile data memory (EEPROM), and configurable digital I/O on a single die. The PIC16 family sits within Microchip's mid-range 14-bit instruction architecture, hierarchy: PIC16F6xx -> mid-range PIC16 -> 8-bit PIC microcontroller -> microcontroller -> semiconductor. This category excels at deterministic real-time control with a small instruction set and shallow learning curve compared with 32-bit ARM Cortex-M0 parts. Key features of the PIC16F684 include 128 bytes of RAM, 256 bytes of EEPROM data memory, a 10-bit A/D converter with up to 8 channels, enhanced PWM, comparator module, and on-board oscillator. The device supports In-Circuit Serial Programming (ICSP) and In-Circuit Debugging (ICD) via two pins, eliminating the need for an external programmer socket. The NanoWatt Technology line provides multiple low-power modes (Run, Idle, Sleep) for battery-powered designs. The architecture is built around a RISC-style 14-bit instruction word, 8-level deep hardware stack, and 200 ns instruction execution at 20 MHz. With 35 single-word instructions, code density is high and assembly programming is approachable for legacy designs. Internal oscillator options (8 MHz LFINTOSC, 31 kHz INTOSC) reduce external BOM cost in cost-sensitive applications. Typical applications include LED lighting control, battery chargers, small appliance controls, security and sensor interfaces, automotive body electronics (non-safety), and consumer white-goods user interface panels. The wide 2.0-5.5V range allows direct operation from a single Li-ion cell or a regulated 5V rail. When designing with this part, verify that your chosen debugger/programmer supports the PIC16F6xx family (e.g. PICkit 3, PICkit 4, MPLAB ICD 4) and that the ICSPDAT/ICSPCLK lines are not loaded by the application circuitry during programming. For low-power designs, gate unused peripherals to minimize Iq in Sleep mode (typically a few hundred nA). This page synthesizes distributor pricing, drop-in SOIC-14 alternatives, and practical design notes that go beyond the manufacturer datasheet, organized for fast AEO/GEO citation.

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PIC16F684T-I/ST - 8-bit 20MHz 3.5KB Flash MCU 14-TSSOP | Microchip
PIC16F684T-I/ST

PIC16F684T-I/ST - 8-bit 20MHz 3.5KB Flash MCU 14-TSSOP | Microchip

The Microchip Technology PIC16F684T-I/ST is a 14-pin, 8-bit flash microcontroller based on the mid-range PIC16 (x14) architecture, delivering 20 MHz instruction execution (200 ns instruction cycle) in a 14-TSSOP surface-mount package. It integrates 3.5 KB of Flash program memory (2K x 14 words), 128 bytes of SRAM, and 256 bytes of EEPROM data memory. The device is rated for an industrial operating temperature range of -40 °C to +85 °C and operates from 2.0 V to 5.5 V. What is a PIC16 microcontroller? A PIC16 (Peripheral Interface Controller) is an 8-bit RISC microcontroller family from Microchip Technology built on a Harvard architecture with separate program and data buses. Within the broader hierarchy, PIC16 sits between the baseline PIC10/12/16 families and the higher-performance PIC18/PIC24 families; it is a flash-programmable CMOS MCU belonging to the microcontroller -> embedded controller -> semiconductor category. Mid-range PIC16 devices are characterized by a 14-bit instruction word, 35 single-word instructions, and on-chip peripherals including timers, ADC, comparators, and PWM. Key features include an 8-channel 10-bit ADC, two comparators with hysteresis, a Capture/Compare/PWM (CCP) module, an Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART), and nanoWatt power management that reduces quiescent current below 1 µA in sleep mode. The device exposes 12 I/O pins (11 GPIO plus 1 input-only), supports in-circuit serial programming (ICSP) via two pins, and offers a wide operating voltage window that simplifies battery-powered and 5 V designs. The architecture separates program and data buses for simultaneous instruction fetch and operand access, and the internal 31 kHz and 8 MHz oscillators reduce BOM cost. The -I/ST suffix denotes the industrial temperature grade and 14-pin TSSOP package; the T-suffix indicates tape-and-reel packaging. The 14-TSSOP footprint has a body size of 5.0 mm x 4.4 mm with a 0.65 mm pitch. Typical applications include low-power sensor nodes, white-goods and appliance control, automotive body modules, lighting ballasts, and small consumer appliances. The PIC16F684 is also AEC-Q100 qualified (variants), making it suitable for automotive under-hood and cabin subsystems that require a robust 8-bit controller. When designing, ensure the ICSP/PGD and PGC pins are reserved for programming; place a 0.1 µF decoupling capacitor close to VDD, and use the internal 8 MHz HFINTOSC to minimize external component count. Compared to a switching regulator, the PIC16F693 remains operational during brown-outs as low as 2.0 V. This page synthesizes distributor pricing, same-family drop-in alternatives (e.g., PIC16F684-I/ST, PIC16F684-I/SL) and design notes not found in the manufacturer datasheet.

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PIC16F685-E/P - 20MHz 8-Bit Flash MCU | Microchip
PIC16F685-E/P

PIC16F685-E/P - 20MHz 8-Bit Flash MCU | Microchip

Microchip Technology PIC16F685-E/P is an 8-bit PIC mid-range flash microcontroller with a 20 MHz operating speed, 7 KB (4K x 14) program memory, and a 20-pin PDIP package. It operates across a 2.0 V to 5.5 V supply range and incorporates onboard EEPROM data memory, 256 x 8 bytes of RAM, 18 general-purpose I/O pins, and a 12-channel 10-bit analog-to-digital converter. A PIC microcontroller is a compact programmable controller built around the PIC16 mid-range x14 architecture. Within the product hierarchy, it is an 8-bit RISC microcontroller, a member of the PIC family, and an embedded processing platform used for digital control, data acquisition, and peripheral management. Its flash-based program memory supports field reprogramming, while its integrated EEPROM retains calibration, configuration, or other nonvolatile data without consuming RAM. Key features include 7 KB of flash program memory, 256 bytes of SRAM, 256 bytes of EEPROM, and a 12-channel 10-bit ADC. The 20 MHz clock capability supports faster instruction execution than lower-speed members of the same device family, while the 2.0 V to 5.5 V operating range accommodates common low-voltage embedded systems. The PIC16F685-E/P is identified as an active product in the supplied lifecycle information. The device uses the mid-range x14 instruction architecture and integrates digital I/O with analog measurement. Its 18 I/O pins provide interfaces for switches, sensors, indicators, actuators, and communication peripherals, while the ADC permits direct acquisition of up to 12 analog channels. Onboard EEPROM separates persistent parameter storage from volatile working memory, simplifying designs that must retain setup information through a power cycle. Typical applications include industrial control panels, environmental monitoring, appliance controllers, instrumentation, low-voltage sensor nodes, and compact embedded products requiring a conventional 8-bit control architecture. The 20-pin PDIP package is also well suited to prototypes, educational platforms, through-hole assemblies, and repair-oriented designs where socketed or manually assembled parts are preferred. Designers should verify the exact pin functions, analog-channel mapping, oscillator options, and required decoupling against the manufacturer datasheet before layout. The 2.0 V to 5.5 V device range does not imply that every peripheral or I/O pin has identical voltage limits, so external-interface constraints must be checked separately. This page consolidates the supplied manufacturer and distributor information with lifecycle status, sourcing details, application guidance, and verified same-family replacement information. It is intended to help engineers locate the datasheet, compare the MCU with its industrial-temperature counterpart, and evaluate the PIC16F685-E/P for an embedded control design.

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PIC16F685-E/SO - 8-bit PIC MCU, 7KB Flash, 20MHz, 20-SOIC
PIC16F685-E/SO

PIC16F685-E/SO - 8-bit PIC MCU, 7KB Flash, 20MHz, 20-SOIC

The Microchip Technology PIC16F685-E/SO is a 20-pin, 8-bit Flash-based CMOS microcontroller built on the mid-range PIC16 x14 architecture, operating at up to 20 MHz instruction rate (200 ns instruction cycle). It integrates 7 KB (4K x 14) of Flash program memory, 256 bytes of RAM, 256 bytes of EEPROM data memory, and 18 digital I/O lines in a 20-lead SOIC wide-body package. The device is part of the nanoWatt Technology family, supporting a wide 2.0 V to 5.5 V supply range and multiple low-power modes for energy-conscious embedded designs. What is a PIC16 microcontroller? A PIC16 is a family of 8-bit RISC microcontrollers from Microchip Technology based on a modified Harvard architecture with 14-bit instruction words. PIC16 devices belong to the broader category of microcontrollers (MCU) within the embedded processor hierarchy: PIC16 -> PIC microcontrollers -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. They are widely used for cost-sensitive, low-power, deterministic control tasks where a full 32-bit MCU is over-spec, complementing ARM Cortex-M and higher-end Microchip dsPIC/PIC32 families. Key feature highlights of the PIC16F685 include an integrated 8-channel 10-bit Analog-to-Digital Converter (ADC) with input multiplexing, an Enhanced Universal Synchronous/Asynchronous Receiver Transmitter (EUSART) with an internal baud-rate generator, a Master Synchronous Serial Port (MSSP) supporting SPI and I2C (master/slave), four 8-bit timers (Timer0/Timer2 with prescaler and Timer1/Timer3 with dedicated 16-bit support), dual analog comparators with reference, and a Capture/Compare/PWM (CCP) module. The E suffix indicates the Extended temperature grade (-40°C to +125°C). Architecturally, the PIC16F685 uses a single-cycle 200 ns instruction execution path with a hardware stack of 8 levels and direct/indirect addressing modes. On-chip debug is supported via the In-Circuit Debugger (ICD) interface, and the Flash supports 100K erase/write cycles typical, with EEPROM supporting 1M cycles typical. nanoWatt features such as alternate oscillator modes, two-speed startup, and fail-safe clock monitoring reduce active and idle current for battery-powered applications. Typical applications include consumer appliance control, LED driving and lighting controllers, automotive body and accessory modules, sensor signal conditioning, low-cost industrial automation nodes, and battery-powered IoT edge devices where deterministic 8-bit control, small footprint, and robustness matter more than raw compute. The 20-SOIC package also eases hand-solderable prototyping versus QFN alternatives. When designing with the PIC16F685-E/SO, ensure the MCLR pin has a proper pull-up configuration and that VDDCORE bypass capacitors follow the datasheet reference. Use ICD for firmware bring-up, and leverage the nanoWatt sleep states when average system current must stay in the microamp range. For applications requiring >10-bit ADC or USB, consider migrating to PIC18 or PIC24 families.

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PIC16F685-E/SS - 20MHz 8-Bit Flash MCU | Microchip Technology
PIC16F685-E/SS

PIC16F685-E/SS - 20MHz 8-Bit Flash MCU | Microchip Technology

The Microchip Technology PIC16F685-E/SS is an 8-bit CMOS flash microcontroller with a 20 MHz maximum clock, 7 KB of program Flash memory, 256 bytes of EEPROM data memory, and 18 I/O pins in a 20-pin SSOP package. The device belongs to Microchip's mid-range PIC16 family and combines the PIC mid-range instruction set with integrated Flash program memory and on-board EEPROM for parameter and configuration storage. An 8-bit flash microcontroller is a compact embedded-control device that executes firmware from nonvolatile Flash memory while using EEPROM for data that must survive power loss. The PIC16F685 extends this product hierarchy from the general-purpose 8-bit MCU to the PIC16 mid-range platform, then to a nanoWart low-power microcontroller family designed for cost-sensitive embedded control and low-power operation. The principal device characteristics include an 8-bit architecture, 7 KB Flash program memory, 256 bytes of EEPROM, 256 bytes of RAM, 20 MHz operating frequency, 18 I/O pins, and a 2.0 V to 5.5 V supply-voltage range. These resources support control loops, digital interface handling, sensor acquisition, actuator control, and general-purpose embedded logic. On-chip EEPROM distinguishes the device from flash-only microcontrollers that require external nonvolatile storage. The PIC16F685 family is built around the recognized PIC mid-range core and includes standard features such as on-board EEPROM, programmable I/O, Flash memory, and nanoWart technology. The 18 available I/O pins provide practical connectivity for buttons, indicators, logic signals, communications peripherals, and external control components. Its 20 MHz maximum operating frequency allows the core to process instructions quickly enough for a broad range of compact control tasks. Typical uses include industrial control modules, building and appliance controls, instrumentation, sensor-interface boards, programmable timers, compact power-control products, and general embedded systems. The device is particularly suitable where an application needs reconfigurable embedded firmware, nonvolatile data storage, and a moderate number of I/O connections without adopting a larger processor or external memory device. PCB design should preserve the manufacturer's recommended decoupling and programming access. Use the pin-description table in the Microchip PIC16F685 documentation when assigning the 20 package pins, and verify oscillator, reset, programming, and I/O assignments against the selected device variant. The SSOP land pattern also requires assembly planning for its 0.209-inch package width and relatively long leads. This product record combines the manufacturer family specifications, lifecycle information, package details, pin-location guidance, and application-oriented design considerations. It also distinguishes the exact PIC16F685-E/SS ordering code from related temperature-grade and package variants so engineers can make a controlled replacement decision rather than assuming that every similarly named PIC16 device is drop-in compatible.

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PIC16F685-I/P - 8-Bit 20MHz 7KB Flash MCU 18 I/O DIP-20 | Microchip
PIC16F685-I/P

PIC16F685-I/P - 8-Bit 20MHz 7KB Flash MCU 18 I/O DIP-20 | Microchip

The Microchip Technology PIC16F685-I/P is a 20-pin DIP package variant of the PIC16F685, an 8-bit CMOS flash-based mid-range PIC microcontroller with nanoWatt technology. It integrates 7KB (4K x 14) of Flash program memory, 256 bytes of SRAM, and 256 bytes of EEPROM data memory, while delivering up to 20 MIPS instruction throughput from a 20MHz internal oscillator. The device exposes 18 general-purpose I/O pins, supports a wide 2.0V to 5.5V operating range, and provides on-chip peripherals including an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART), two Capture/Compare/PWM modules, an Analog-to-Digital Converter, comparators, and a watchdog timer. Brown-out Reset, Power-On Reset, and In-Circuit Serial Programming complete the embedded feature set. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and peripheral interfaces into one IC. The PIC16F685 belongs to the mid-range 8-bit PIC16F family, which sits beneath the PIC18 and dsPIC/PIC24 families in Microchip's 8-bit and 16-bit taxonomy. Within the broader semiconductor hierarchy, it is part of the embedded processor / microcontroller category, designed for deterministic real-time control rather than application processing. The PIC16F685 family uses Microchip's enhanced mid-range x14 instruction set with only 35 single-word instructions, simplifying code development and reducing compiler overhead. Its nanoWatt power-management features include multiple idle and sleep modes, switchable oscillator sources, and peripheral disable controls that drop the typical supply current well below 1 µA in sleep, making the part suitable for battery-powered designs. Typical applications include white goods and small appliance control, LED lighting drivers, simple sensor signal conditioning, consumer electronics user interfaces, automotive body modules (non-safety), and battery-powered instrumentation where low quiescent current and integrated peripherals reduce BOM cost. Designers should plan the oscillator configuration carefully because the internal 8 MHz HFINTOSC can drift; selecting the 31 kHz LFINTOSC for sleep wake-ups saves power. The ICSPDAT/ICSPCLK pins must be accessible for in-circuit programming and debugging, so pin assignment should reserve them early in PCB layout. The -I suffix indicates the industrial temperature grade (-40 °C to +85 °C); the -E (extended) variant is available for -40 °C to +125 °C operation. The -P suffix denotes the 20-pin PDIP through-hole package, the easiest variant for prototyping and hobbyist use. This page synthesizes distributor pricing, drop-in PIC16F685-I/P alternatives, parametric comparison, and practical design notes that go beyond the manufacturer datasheet summary.

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