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PIC16F914-E/PT - 8-bit 20MHz 7KB Flash MCU w/ LCD | Microchip
PIC16F914-E/PT

PIC16F914-E/PT - 8-bit 20MHz 7KB Flash MCU w/ LCD | Microchip

The Microchip Technology PIC16F914-E/PT is a low-power 8-bit PIC16 RISC microcontroller featuring 7KB (4K x 14) of Flash program memory, 256 bytes of SRAM, and 256 bytes of EEPROM, integrated with an LCD segment driver supporting up to 96 segments. Housed in a 44-pin TQFP (PT) package, the device executes instructions at 200 ns per cycle from an internal 32 kHz to 20 MHz oscillator and operates across a wide 2.0 V to 5.5 V supply range. The integrated LCD controller, 35 digital I/O pins, and nanoWatt power-management modes make the PIC16F914 ideal for battery-powered human-interface products. Peripherals include one 8-bit timer (TMR0/TMR2), one 16-bit timer (TMR1) with built-in real-time clock support, an Enhanced Watchdog Timer (EWDT), a 10-bit ADC, and Master I2C/SPI/EUSART (AUSART) interfaces for master-mode connectivity. An 8-bit PIC microcontroller (PIC = Peripheral Interface Controller) is a Harvard-architecture RISC MCU designed for deterministic real-time control. Within the semiconductor hierarchy it sits below 32-bit ARM Cortex-M parts, offering lower cost, lower power, and simpler toolchains while delivering more than enough MIPS for appliances, sensors, and human-interface products. The PIC16 mid-range core used by the PIC16F914 family provides 14-bit instruction words, a single accumulator (WREG), and a hardware stack, which simplifies programming in MPLAB X IDE while preserving real-time interrupt performance. Key differentiating features include on-chip LCD segment driving (up to 96 segments with software-controlled contrast and bias), nanoWatt technology that drops quiescent current below 1 µA in sleep, and an internal oscillator that eliminates the external crystal in cost-sensitive designs. Brown-out Reset (BOR), Power-on Reset (POR), and an Extended Watchdog Timer safeguard firmware integrity in industrial environments. The 44-TQFP footprint exposes 35 I/O lines - enough to drive a multi-button keypad, an alphanumeric LCD glass, and a serial sensor bus simultaneously. Typical applications include white-good control panels, point-of-sale terminals, thermostat and HVAC front-panel controllers, blood-pressure monitors, and low-cost industrial gauges. The wide 2.0 V to 5.5 V operating range lets the same firmware run from two AA cells, a CR2032 backup, or a regulated 5 V rail. When porting firmware, the PIC16F917 (with 14 KB Flash) and PIC16F913 (4 KB Flash) preserve the same LCD pinout and register map, allowing PCB reuse across cost/feature variants.

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PIC16F914-I/P - 8-Bit MCU, 7KB Flash, 36 I/O, LCD Driver | Microchip
PIC16F914-I/P

PIC16F914-I/P - 8-Bit MCU, 7KB Flash, 36 I/O, LCD Driver | Microchip

The Microchip PIC16F914-I/P is an 8-bit Flash-based CMOS microcontroller from the PIC16F91X family, integrating a 7KB (4K x 14) Flash program memory, 256 bytes SRAM, and 256 bytes EEPROM data memory in a 40-pin PDIP package. It operates at up to 20 MHz instruction clock, provides 35 digital I/O pins, and includes an integrated LCD driver capable of driving up to 96 LCD segments - one of the most distinctive features of this family, eliminating the need for an external LCD controller in many human-machine-interface designs. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for deterministic real-time control in cost- and power-sensitive applications. PIC16-family MCUs use a RISC-based Harvard architecture with a small instruction set (35 single-word instructions) and a 14-bit instruction word, sitting at the lower tier of Microchip's PIC16 hierarchy: PIC10/12/16 base -> mid-range PIC16F91X -> PIC18 enhanced 8-bit. They belong to the broader category of embedded microcontrollers -> microprocessors -> semiconductors, providing CPU, RAM, non-volatile memory, and peripherals in one package. Key features of the PIC16F914-I/P include a wide operating voltage range of 2.0V to 5.5V, an internal 32 kHz to 8 MHz oscillator, three timer modules (TMR0, TMR1 16-bit, TMR2 8-bit), an extended watchdog timer (EWDT), nanoWatt power-management technology for sleep currents in the microamp range, and 25 mA source/sink capability per I/O for direct LED driving. The integrated LCD charge-pump and segment driver allow battery-powered meters and appliances to display information without additional ICs. Architecturally, the device combines a RISC CPU core, Harvard buses for program/data, an instruction pipeline, and configurable peripheral pin-select alternatives, with on-chip in-circuit serial programming (ICSP) and in-circuit debugging support via Microchip's MPLAB ICD tools. Typical applications include battery-powered utility meters, white-goods and appliance control panels, medical point-of-care devices, industrial sensor front-ends, and any product requiring a segment-LCD display with low-power operation. The integrated LCD driver especially suits thermostat, weighing scale, and consumer-electronics UI designs. When designing, plan for an internal or external clock source, decoupling caps on VDD/AVDD/VSS, and a 4x resistor network on MCLR if in-circuit programming is required. The internal oscillator and nanoWatt features let you drop the external crystal for many cost-sensitive applications. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F914-I/PT - 8-Bit MCU, 7KB Flash, LCD Driver, 44-TQFP | Microchip
PIC16F914-I/PT

PIC16F914-I/PT - 8-Bit MCU, 7KB Flash, LCD Driver, 44-TQFP | Microchip

The Microchip PIC16F914-I/PT is an 8-bit Flash-based CMOS microcontroller from the PIC16F91X family featuring an integrated LCD segment driver and Microchip's nanoWatt Technology power management. The device runs up to 20 MHz delivering 200 ns instruction execution, packs 7 KB (4K x 14) of Flash program memory, 352 bytes of RAM, and 256 bytes of EEPROM data memory into a 44-pin TQFP (10x10 mm) package. It exposes 36 digital I/O pins, supports up to 96 LCD segments, and integrates two 8-bit timers (TMR0/TMR2), one 16-bit timer (TMR1), an Enhanced Watchdog Timer (EWDT), and an internal 32 kHz to 8 MHz oscillator. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, timers, communication peripherals, and I/O on one die. The PIC16F91X series belongs to Microchip's mid-range PIC16 family and uses a RISC-based Harvard architecture with only 35 single-word instructions, enabling predictable real-time control. MCUs sit at the top of the embedded-computing hierarchy alongside microprocessors, FPGAs, and DSPs, and dominate cost-sensitive deterministic control applications. Key features include a wide 2.0 V to 5.5 V operating range, integrated LCD segment driver supporting up to 96 segments, 25 mA source/sink I/O current capability per pin, an on-chip 8 MHz internal oscillator, and nanoWatt Technology power-management modes that reduce quiescent current for battery-powered applications. The on-chip LCD controller eliminates the need for an external LCD driver, reducing BOM cost and PCB area in human-machine interface designs. The PIC16F914 uses a Harvard architecture with separate program and data buses, allowing simultaneous instruction fetch and operand access. Its enhanced mid-range core adds a hardware stack, interrupt context saving, and 14-bit instruction words optimized for C compiler code generation. The device's nanopower features include a secondary 32 kHz oscillator, ultra-low-power wake-up, and several sleep modes enabling coin-cell operation in remote sensors and metering products. Typical applications include industrial control panels, home appliance user interfaces, security and alarm keypads, medical infusion pumps, metering equipment, and any embedded design requiring a glass or segment LCD without external controller chips. The integrated LCD driver also makes it suitable for automotive dashboard clusters and consumer electronics with character or segment displays. When designing with this device, reserve adequate PCB area for the decoupling capacitor network (0.1 uF on VDD) and consider the LCD bias network on COM/SEG pins. Always program configuration bits (oscillator, watchdog, code protection) before the main application code, and consult the device's errata for any silicon revisions relevant to your revision ID. This page synthesizes distributor pricing, drop-in PIC16F91X-family alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single reference for component evaluation.

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PIC16F914T-I/PT - 8-Bit 20MHz 7KB Flash MCU with LCD Driver | Microchip
PIC16F914T-I/PT

PIC16F914T-I/PT - 8-Bit 20MHz 7KB Flash MCU with LCD Driver | Microchip

The Microchip Technology PIC16F914T-I/PT is a mid-range 8-bit CMOS Flash microcontroller with an integrated LCD driver, 7KB of program memory, and 256 bytes of SRAM plus 256 bytes of EEPROM, housed in a 44-pin TQFP (10x10 mm) package. It executes instructions at 200 ns per cycle from a 20 MHz internal/external oscillator and is designed for low-power applications using nanoWatt Technology. A PIC microcontroller is a programmable system-on-chip that integrates an 8-bit RISC CPU core, non-volatile Flash program memory, RAM, EEPROM, timers, and various peripherals into a single IC. PIC16F series devices belong to Microchip's mid-range 14-bit instruction architecture family and are widely used in embedded control applications where deterministic behavior, ease of programming, and rich peripheral integration reduce external component count. Key features of the PIC16F914T-I/PT include a 20 MHz maximum clock, 35 digital I/O pins, two 8-bit timers (TMR0/TMR2), one 16-bit timer (TMR1), an extended watchdog timer (EWDT), up to 96-segment LCD driver, internal 32 kHz to 8 MHz oscillator, 25 mA source/sink current on I/O, and a wide 2.0V to 5.5V operating voltage range. The device also offers an enhanced ICD interface for in-circuit debugging and supports MPLAB X IDE and PICkit programming tools. The PIC16F914T-I/PT uses the enhanced PIC16 mid-range core with a 14-bit instruction word, 8-level deep hardware stack, and 35 single-word instructions. Its integrated LCD driver with charge pump supports static, 1/2, 1/3, and 1/4 multiplexed LCD glass up to 96 segments without external components. The nanoWatt Technology features multiple idle and sleep modes with wake-up on interrupt, making it well suited for battery-powered or energy-harvesting designs. Typical applications include consumer white goods (washing machines, microwave ovens), metering and measurement devices (electricity/gas/water meters with LCD readout), portable medical instruments with LCD display, automotive instrument clusters, industrial control panels, and any battery-powered device that requires a built-in segmented LCD. Design considerations include ensuring the LCD bias network components match the desired multiplex mode, leaving pin RC0/RC1 available if the ICD debug interface is used, and budgeting for the small code size headroom when migrating from PIC16C/CR device families. The TQFP-44 footprint provides generous I/O and a thin profile suitable for handheld enclosures. This page consolidates distributor pricing, drop-in alternatives from the same PIC16F91x family, and practical design notes that are not assembled in any single place in the manufacturer datasheet.

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PIC16F916-E/SP - 8-Bit 20MHz 14KB Flash MCU w/ LCD | Microchip
PIC16F916-E/SP

PIC16F916-E/SP - 8-Bit 20MHz 14KB Flash MCU w/ LCD | Microchip

The Microchip PIC16F916-E/SP is an 8-bit PIC16 family flash-based CMOS microcontroller with 14KB (8K x 14) of program memory, 352 bytes of RAM, and an integrated LCD driver, housed in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package. It executes instructions at 20MHz (200ns instruction cycle) from a 2.0V to 5.5V supply, includes 24 digital I/O pins, and adds on-chip peripherals such as a 10-bit ADC, comparators, PWM modules, and the nanoWatt power-management feature set. A PIC microcontroller (Programmable Interrupt Controller / Peripheral Interface Controller) is a RISC-based 8-bit MCU built on a Harvard architecture, optimized for deterministic real-time embedded control. Within the broader taxonomy, PIC16F parts sit between the baseline PIC10/12/16 baseline families and the higher-end PIC18 and dsPIC lines, offering a balance of code density, peripheral integration, and low power consumption for cost-sensitive designs. Key features include nanoWatt Technology for ultra-low sleep currents (typical standby <100 nA with watchdog enabled), a self-programmable flash memory that supports in-circuit serial programming (ICSP), and an on-chip LCD driver capable of directly multiplex-segmented displays of up to 28 segments x 4 commons - eliminating the need for an external LCD controller. The 28-SPDIP package gives 31.4 C/W theta_JA typical, suitable for hand-soldered prototyping, educational kits, and through-hole industrial control boards. Typical applications include human-machine interface (HMI) panels with character or segmented LCDs, low-cost consumer appliances, battery-powered sensor nodes using sleep modes, and industrial process controllers with on-panel displays. The wide 2.0V-5.5V operating range supports direct connection to single-cell Li-ion (with boost) or 3.3V/5V regulated rails. When designing with this device, follow the datasheet ICSP pinout and reserve the PGx/PGD-PGC lines for in-circuit programming. The LCD charge-pump bias generator requires external capacitors on the VLCD pins - do not leave these floating. Use the C compiler (XC8) or assembly (MPASM) with the appropriate header file for the PIC16F916 device ID. This page synthesizes distributor pricing, drop-in PIC16F alternatives, and practical design notes not found in the bare manufacturer datasheet, giving engineers a one-stop reference for selecting, sourcing, and integrating the PIC16F916-E/SP.

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PIC16F916-E/SS - 8-Bit 20MHz 14KB Flash MCU w/ LCD | Microchip
PIC16F916-E/SS

PIC16F916-E/SS - 8-Bit 20MHz 14KB Flash MCU w/ LCD | Microchip

The Microchip Technology PIC16F916-E/SS is an 8-bit CMOS flash-based microcontroller from the PIC16F91X family, executing up to 20 MIPS at 20 MHz while integrating 14 KB (8K x 14) of Flash program memory, 352 bytes of SRAM, and 256 bytes of EEPROM data memory in a 28-pin SSOP package. The device features an integrated LCD driver capable of driving up to 60 segments, a 5-channel 10-bit ADC, and Microchip's nanoWatt Technology for ultra-low-power operation. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O into one device. The PIC16F916 belongs to the PIC mid-range 8-bit family — within the broader hierarchy: PIC16F91X -> PIC16F family -> PIC16 -> PIC microcontrollers -> 8-bit microcontrollers -> microcontrollers -> embedded processors -> semiconductors. The mid-range core uses a 14-bit instruction word with a 35-instruction RISC set and executes most instructions in a single 200 ns cycle at 20 MHz, balancing code density, deterministic interrupt response, and ease of programming. Key features include 25 mA source/sink I/O current for direct LED drive, internal 32 kHz to 8 MHz oscillator eliminating external crystals in many designs, two 8-bit timers (TMR0, TMR2), one 16-bit timer (TMR1), an extended watchdog timer (EWDT), Brown-Out Reset (BOR) with software control, In-Circuit Serial Programming (ICSP), and a programmable Low-Voltage Detect (LVD). The 28-SSOP /E temperature suffix indicates an extended industrial operating range of -40C to +125C. The PIC16F916 combines a RISC Harvard-bus CPU with separate program and data buses for predictable single-cycle instruction timing, and the integrated LCD driver supports static, 1/2, 1/3, and 1/4 multiplexed LCDs with selectable bias, removing the need for an external LCD controller in segment-display designs. nanoWatt Technology provides multiple power-managed modes (Run, Idle, Sleep) that drop quiescent current into the microamp range for battery-powered applications. Typical applications include battery-powered consumer appliances with LCD displays, industrial control panels, metering equipment, white-goods user interfaces, security-system keypads, and any cost-sensitive embedded design requiring segment-LCD visualization without an external driver. The wide 2.0V-5.5V operating range supports both 3.3V and 5V designs from a single part. When designing with the PIC16F916-E/SS, route the LCD segment pins with proper bias-capacitor placement on SEG/COM lines, and use ICSP with a 2-wire programming interface for field firmware updates. Choose the -E (extended) temperature grade for automotive or industrial enclosures above +85C, while the -I (industrial) grade suffices for commercial products at 0C to +85C. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the PIC16F916-E/SS not found in a single manufacturer datasheet.

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PIC16F916-I/SO - 8-Bit MCU, 14KB Flash, 20MHz, LCD Driver | Microchip
PIC16F916-I/SO

PIC16F916-I/SO - 8-Bit MCU, 14KB Flash, 20MHz, LCD Driver | Microchip

The Microchip Technology PIC16F916-I/SO is a mid-range PIC16 family 8-bit CMOS flash microcontroller featuring a 20 MHz maximum CPU clock, 14 KB (8K x 14 words) of on-chip flash program memory, 352 bytes of RAM, and 256 bytes of EEPROM, all integrated into a 28-pin SOIC wide-body package. The device integrates an LCD driver supporting up to 60 segments, an integrated LCD charge pump, and Microchip's nanoWatt Technology for ultra-low power sleep current, making it well suited for direct-drive battery-powered user interfaces. An 8-bit microcontroller is a single-chip computer built around an 8-bit data path, general-purpose registers, on-chip flash/RAM/EEPROM, and a core set of digital peripherals. The PIC16 family sits between the baseline PIC10/12/16 (no letter suffix) and the enhanced PIC18 families. Within that hierarchy the PIC16F916 belongs to the PIC16F91x sub-family defined by an LCD driver and nanoWatt Technology. PIC16F91x devices use a RISC Harvard architecture with 35 single-word instructions and 200 ns instruction execution at 20 MHz, and they sit alongside PIC16F88x and PIC16F87x in Microchip's broader mid-range MCU portfolio. Key features include 25 digital I/O pins, two 8-bit timers and one 16-bit timer, a 10-bit ADC with up to 8 input channels, an Enhanced USART, an MSSP module supporting SPI and I2C (master/slave), a parallel slave port, a 9-bit addressable comparator with 2 input mux, and a 256-byte block-erasable flash with self-programming support. The integrated LCD controller supports static, 1/2, 1/3, and 1/4 multiplex modes and includes software-contrast control via an internal charge pump or external resistor ladder. Typical applications include battery-powered meters, thermostats, white-goods control panels, medical handheld instruments, and any embedded product that needs an on-glass segmented LCD without an external driver. The wide 2.0 V to 5.5 V operating range and nanoWatt sleep modes enable years of operation from a single lithium coin cell in typical metering duty cycles. Choose this part over a PIC16F88x when you need the integrated segmented LCD controller, and over a PIC16F87x when you need a smaller 28-pin footprint with lower cost and newer nanoWatt peripherals. When designing with PIC16F916-I/SO, observe the absolute maximum VDD of 7.5 V and the recommended 2.0-5.5 V operating range. Use a 100 nF decoupling capacitor as close as possible to VDD and a bulk capacitor (>=1 uF) on the AVDD/AVSS analog supply rails to keep the ADC and internal bandgap clean. Always configure the unused I/O pins as outputs low and disable the weak pull-ups on unused pins to avoid leakage in deep sleep. This page synthesizes distributor pricing, drop-in 28-SOIC alternatives from Microchip, and practical design notes not found in the manufacturer datasheet, including a side-by-side comparison versus PIC16F913-I/SO, PIC16F914-I/PT, and PIC16F88-E/SO.

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PIC16F916-I/SP - 8-Bit 20MHz 14KB Flash MCU w/ LCD | Microchip
PIC16F916-I/SP

PIC16F916-I/SP - 8-Bit 20MHz 14KB Flash MCU w/ LCD | Microchip

The Microchip PIC16F916-I/SP is an 8-bit CMOS flash-based PIC16 mid-range microcontroller running at up to 20 MHz, integrating 14 KB (8K x 14) of Flash program memory, 352 bytes of RAM and 256 bytes of EEPROM, and packaged in a 28-pin SPDIP through-hole format. The -I suffix denotes the industrial temperature grade of -40C to +85C, and the part is qualified for lead-free, RoHS-compliant assembly. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), peripherals and I/O on one die. The PIC16F916 belongs to the PIC16 mid-range family (PIC16 -> 8-bit MCU -> microcontroller -> embedded IC) and adds an integrated LCD driver capable of driving up to 28/32/36 segments depending on package, which removes the need for an external LCD controller in HMI designs. Key differentiating features include nanoWatt power management for sleep currents as low as the nA range, an internal oscillator selectable from 31 kHz to 8 MHz, 24 digital I/O lines with individual direction control, a 10-bit ADC with up to 11 channels, and Capture/Compare/PWM (CCP) modules. The 28-pin SPDIP package is breadboard-friendly, simplifying prototyping and field-replacement workflows. Architecturally the PIC16F916 uses a Harvard RISC core with only 35 single-word instructions, most executing in a single 200 ns instruction cycle at 20 MHz. The integrated LCD module supports static, 1/2, 1/3 and 1/4 duty cycles with a charge-pump option, eliminating external bias generation and reducing BOM cost for human-machine interface (HMI) products. Typical applications include white-goods front panels, thermostat and HVAC user interfaces, industrial control keypads with LCD readout, metering and instrumentation displays, and consumer electronics requiring an integrated segmented display. The 20 MHz core, 14 KB Flash and 24 I/O make it well suited to mid-complexity control with HMI. When designing with the PIC16F916, configure unused I/O as outputs (not inputs) to avoid floating-pin current, observe the Vdd rise-time specification during in-circuit serial programming (ICSP), and place the device decoupling capacitor (0.1 uF) within 5 mm of Vdd. For LCD designs, the bias-generation capacitors (typically 0.1 uF to 1 uF) are mandatory; omitting them produces ghost segments. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the bare manufacturer datasheet, supporting both new design and legacy board re-spin activities.

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PIC16F916T-I/SO - 14KB Flash 8-bit MCU with LCD Driver | Microchip
PIC16F916T-I/SO

PIC16F916T-I/SO - 14KB Flash 8-bit MCU with LCD Driver | Microchip

The Microchip Technology PIC16F916T-I/SO is an 8-bit flash-based CMOS microcontroller from the PIC16F91x family, delivering 20 MHz CPU performance with 14 KB (8K x 14) of program Flash, 352 bytes of RAM, and an integrated LCD driver, in a 28-pin SOIC package supplied on Tape and Reel. It combines a powerful PIC16 RISC core with 35 single-word instructions and nanoWatt power management for low-power embedded designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash/EEPROM/RAM), peripherals, and I/O on one die. The PIC16F916 family sits in the mid-range 8-bit PIC16 tier, below the 16-bit PIC24/dsPIC families and above baseline PIC10/PIC12 devices. Embedded 8-bit MCUs are widely used where deterministic behaviour, low power, and small footprint outweigh raw performance. The integrated LCD driver up to 60 segments distinguishes this part from generic PIC16F88x parts and removes the need for an external LCD controller. Key features include 25 digital I/O pins, an internal oscillator, a 14-channel 8-bit ADC, one 8-bit timer plus one 16-bit timer, and nanoWatt technology that drops supply current into the microamp range during sleep. The I-grade -40C to +85C industrial temperature range supports consumer, appliance, and industrial user-interface applications. The 28-SOIC package offers an industry-standard 300-mil SOIC footprint compatible with hand-screened prototypes and automated assembly. The PIC16F916 uses Microchip's enhanced mid-range 14-bit instruction core with a 2-stage pipeline, yielding 200 ns instruction execution at 20 MHz. On-chip peripherals are accessible through standard SFRs and are reused across the PIC16F91x family, easing code migration to PIC16F913/914/917 siblings with more memory and pins. The nanoWatt features include multiple idle/sleep modes, a low-power Timer1 oscillator, and software-controllable peripheral shutdown. Typical applications include white goods and appliance front-panel displays, industrial metering with segmented LCD readouts, medical pumps with LCD menus, automotive interior modules with mid-density I/O, consumer devices with embedded UI, and battery-powered handheld instruments. The integrated LCD driver eliminates an external chip and reduces BOM cost in any user-interface design that previously needed a dedicated HT1621 or similar segment driver. When designing with the PIC16F916T-I/SO, allocate at least 30% of program memory for code growth and reserve adequate RAM for the LCD segment buffer. Use MPLAB X IDE with XC8 compiler and PICkit 5 for development; the device is supported by Microchip's code-configurator (MCC) for rapid peripheral setup. Pin 1 is the MCLR/VPP/RA3 multi-function pin on the 28-SOIC, so do not pull it high through a weak resistor if in-circuit debugging is needed. This page synthesizes Microchip distributor availability, datasheet citations, drop-in SOIC-28 alternatives, and practical design notes not collected in the manufacturer datasheet, providing engineering and procurement teams a consolidated reference for sourcing decisions.

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PIC16F916T-I/SS - 8-Bit 20MHz 14KB Flash MCU | Microchip
PIC16F916T-I/SS

PIC16F916T-I/SS - 8-Bit 20MHz 14KB Flash MCU | Microchip

The Microchip Technology PIC16F916T-I/SS is an 8-bit CMOS flash-based microcontroller from the PIC16F family with 14KB program memory and integrated LCD driver, housed in a 28-pin SSOP package. The "T" suffix denotes tape-and-reel packaging, and the "I" indicates the industrial operating temperature range of -40C to +85C, while the /SS package code designates the SSOP-28 form factor. An 8-bit microcontroller (MCU) is a self-contained microcomputer on a single integrated circuit that integrates a CPU, RAM, non-volatile program memory (Flash), peripherals, and I/O. Within the broader taxonomy, PIC microcontrollers sit under microcontrollers -> microprocessors -> integrated circuits -> semiconductors. The PIC16F family uses Microchip's enhanced mid-range 14-bit instruction architecture, offering 35 single-word instructions with 200ns instruction execution at 20MHz, balancing code density with deterministic real-time control. Key features include 14KB (8192 x 14 instructions) of self-programmable flash, 352 bytes of SRAM, 256 bytes of EEPROM, 25 digital I/O pins, and an integrated LCD driver capable of directly driving up to 60 segment outputs with 4 commons. The device incorporates nanoWatt technology with multiple power-managed modes (Run, Idle, Sleep) bringing quiescent current as low as sub-microamp levels, and offers rich peripherals such as 8 channels of 8-bit ADC, 2 capture/compare/PWM modules, a USART, an SSP (SPI/I2C), and a 16-bit Timer1 with real-time clock capability. Architecturally the PIC16F916T-I/SS combines a RISC instruction pipeline with Harvard bus architecture, separate code and data paths, and a configurable oscillator block supporting 8MHz internal RC, external clock, and low-power 32kHz crystal modes. The integrated LCD driver shares pins with the digital I/O, providing hardware-controlled segment waveforms with variable bias and contrast, eliminating the need for an external LCD controller. Typical applications include consumer appliances with LCD user interfaces, industrial control panels, medical handheld instruments, smart thermostats, metering equipment, and battery-powered sensor readout products. The on-chip LCD driver makes it particularly suited for any application requiring a multi-segment character or numeric display. Designers should consider the trade-off between the integrated LCD driver (reducing BOM cost) and the modest 8-bit ADC resolution; for higher-precision analog front ends, an external 12-bit ADC companion or a PIC16F1xxx series upgrade should be evaluated. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F917-E/ML - 8-Bit MCU, 14KB Flash, LCD Driver | Microchip
PIC16F917-E/ML

PIC16F917-E/ML - 8-Bit MCU, 14KB Flash, LCD Driver | Microchip

The Microchip Technology PIC16F917-E/ML is an 8-bit flash-based CMOS microcontroller from the PIC16F91X family, delivering 20 MHz CPU performance with 14 KB (8K x 14) of on-chip flash program memory and 352 bytes of SRAM in a 44-pin VQFN (8x8) package with exposed thermal pad. It integrates a segmented LCD driver, nanoWatt power management, 35 digital I/O pins, a 10-bit ADC, and an internal oscillator. What is an 8-bit flash microcontroller? An 8-bit flash microcontroller (MCU) is a single-chip computer that combines a CPU, non-volatile flash program memory, RAM, peripherals, and I/O on one die. The PIC16F917 sits within the broader taxonomy: microcontroller -> 8-bit MCU -> PIC16F family -> PIC16F91X sub-family -> flash-based with LCD. These devices target cost-sensitive embedded designs requiring integrated analog, segmented LCD glass drive, and low-power sleep modes for battery-powered human-machine interface (HMI) products. Key features include 14 KB flash, 256 bytes EEPROM, 352 bytes RAM, 35 I/O, 10-bit ADC with multiple channels, three timers, an LCD driver supporting up to 60 segments, and nanoWatt technology that reduces quiescent current to sub-microampere levels in sleep. The 44-QFN (8x8) exposed-pad package provides a low thermal resistance path for higher-current GPIO switching and supports compact board layouts under consumer-electronics dimensional budgets. The PIC16F917 uses a RISC architecture with a 14-bit instruction word and a single-cycle hardware multiplier. The LCD driver can directly multiplex up to 4 common planes and 60 segment pins, allowing direct connection to a static or multiplexed glass without an external charge pump, while the nanoWatt modes (Idle, Sleep, and Timer1 oscillator run-from-RTC) make the device well-suited to thermostat, remote control, metering, and appliance front panels. Typical applications include white-goods front panels with LCD, residential thermostats, electricity/water/gas metering, point-of-sale keypads with LCD readout, medical devices requiring segmented displays (e.g. glucose meters), and industrial control panels. When laying out the PCB, route the LCD segment traces with care to avoid coupling noise to adjacent ADC inputs, and connect the exposed pad to a clean ground plane for thermal dissipation.

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PIC16F917-E/P - 8-Bit 20MHz Flash MCU | Microchip
PIC16F917-E/P

PIC16F917-E/P - 8-Bit 20MHz Flash MCU | Microchip

The Microchip Technology PIC16F917-E/P is an 8-bit PIC16-family flash-based microcontroller with a 20 MHz maximum clock, 14 KB of program Flash, 352 bytes of RAM, and 36 I/O pins in a 40-pin PDIP package. The device is indicated as In Production on the Microchip product page, and its -E suffix denotes the extended-temperature grade. An 8-bit flash microcontroller is a programmable integrated circuit that executes a compact instruction set while storing firmware in nonvolatile Flash memory. Within the product hierarchy, the PIC16F917 is a PIC16 RISC microcontroller, an embedded MCU, and ultimately a semiconductor designed for control-oriented products. Its combination of LCD-driver capability, low-power features, and a wide operating-voltage range suits instruments, panel controls, and embedded display systems. Principal features include a 14 KB Flash memory organized as 8K x 14 words, 352 bytes of RAM, up to 96 LCD segments, and an internal oscillator spanning 32 kHz to 8 MHz. The MCU includes two 8-bit timers, one 16-bit timer, an extended watchdog timer, and brown-out reset with software control. Operation is supported from 2.0 V to 5.5 V, while individual I/O lines provide 25 mA source or sink current. The PIC16F917 architecture uses a 13-bit program counter, with the 8K x 14 program memory occupying addresses 0000h through 1FFFh for the PIC16F917 and PIC16F916 variants. Flash memory allows in-circuit reprogramming, while the integrated LCD driver reduces the external component count in segment-display designs. The internal 32 kHz to 8 MHz oscillator also allows designs to avoid an external clock source when the required timing accuracy is acceptable. Typical applications include monochrome LCD instruments, industrial control panels, pump controllers, measurement equipment, battery-operated monitors, and general-purpose embedded control boards. The 36 available I/O pins support multiple sensors, switches, displays, and actuators, while the 20 MHz performance capability allows the PIC16F917 to service more demanding control loops than the lowest-end 8-bit PIC devices. When laying out a board, verify every signal against the 40-pin PDIP datasheet pinout and preserve the required decoupling near the supply pins. Because the -E/P ordering code identifies a specific package and temperature grade, confirm the full part number before assembly. The MPLAB PICkit 5 in-circuit debugger and programmer identified on the Microchip product page provides a supported path for programming and prototype verification. This page combines verified manufacturer and distributor information with a structured comparison, practical design notes, and application guidance that help engineers evaluate the PIC16F917-E/P beyond a distributor listing alone.

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PIC16F917-I/ML - 8-Bit MCU, 14KB Flash, 35 I/O, 44-QFN | Microchip
PIC16F917-I/ML

PIC16F917-I/ML - 8-Bit MCU, 14KB Flash, 35 I/O, 44-QFN | Microchip

The Microchip Technology PIC16F917-I/ML is a 28/40/44-pin Flash-based 8-bit CMOS microcontroller with nanoWatt technology, integrated LCD driver, and 14 KB (8K x 14) of program memory, offered in a 44-lead VQFN (ML, 8x8 mm) package with exposed pad. It runs at 20 MHz maximum clock, supplies 352 bytes of RAM, 256 bytes of EEPROM, and 35 digital I/O pins, while operating across 2.0 V to 5.5 V. An 8-bit microcontroller (MCU) is a single-chip computer that integrates an 8-bit CPU core, Flash/ROM program memory, data RAM, EEPROM, timers, communication peripherals, and I/O on one die. It belongs to the broader hierarchy: microcontroller -> embedded processor -> integrated circuit -> semiconductor. PIC16F series MCUs from Microchip target cost-sensitive, low-power embedded designs with rich peripheral integration and the legacy PIC mid-range instruction set. Key features include nanoWatt power management (deep sleep currents in the microampere range), a built-in LCD driver supporting up to 4 common x 35 segment displays, a 10-bit ADC with 14 channels, two analog comparators, and communication peripherals including USART, SPI, and I2C. The internal oscillator can be configured up to 8 MHz, with the option to switch to an external crystal for precision timing. The PIC16F917 architecture uses a 14-bit instruction word Harvard design with separate program and data buses, enabling single-cycle instruction execution at 20 MHz (200 ns instruction cycle). Its peripheral integration eliminates external drivers for LCD panels and reduces BOM count versus discrete MCU + external LCD controller designs. Typical applications include consumer appliances with LCD user interfaces, industrial control panels, security keypads, instrument clusters, medical monitoring devices, and battery-powered sensor nodes. The integrated LCD driver and ample I/O make it well suited to HMI (human-machine interface) products where it would otherwise need an external LCD controller. When designing with this part, the I/ML suffix denotes the 44-lead QFN package (-40C to +85C industrial temperature range). Place a thermal via array under the exposed pad to the inner ground plane for best thermal performance, and follow Microchip AN2042 (LCD design) for segment bias capacitor selection to avoid flicker on high-duty-cycle displays. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the standalone manufacturer datasheet, with all data cross-referenced against the Microchip PIC16F91X 28/40/44-pin datasheet and current distributor listings.

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PIC16F917-I/P - 8-Bit 20MHz MCU 14KB Flash LCD DIP-40 | Microchip
PIC16F917-I/P

PIC16F917-I/P - 8-Bit 20MHz MCU 14KB Flash LCD DIP-40 | Microchip

The Microchip Technology PIC16F917-I/P is an 8-bit flash-based CMOS microcontroller from the PIC16F91X family, featuring a 20MHz maximum CPU clock, 14KB (8K x 14) of flash program memory and 352 bytes of RAM, housed in a 40-pin PDIP through-hole package. The device integrates an on-chip LCD driver, nanoWatt power management, and 36 digital I/O pins. A PIC microcontroller (Programmable Intelligent Computer) is a Harvard-architecture RISC microcontroller family developed by Microchip. PIC MCUs sit in the broader taxonomy of: microcontroller -> embedded controller -> semiconductor IC. The PIC16F917 specifically belongs to the mid-range PIC16 family, which uses a 14-bit instruction word and 35 single-word instructions to balance code density, deterministic execution (~200ns per instruction at 20MHz) and ease of programming. The integrated LCD driver eliminates the need for an external display controller in many HMI designs. Key features include 14KB flash program memory, 352 bytes RAM, 256 bytes EEPROM, an integrated LCD driver supporting up to 60 segments, 36 digital I/O pins, a 10-bit ADC with up to 14 channels, multiple timer modules (Timer0, Timer1, Timer2), nanoWatt technology for low-power operation, an internal 8MHz oscillator, ICSP (In-Circuit Serial Programming), and a wide 2.0V-5.5V operating voltage range suitable for battery-powered and 5V systems. The PIC16F917 uses a RISC architecture with a hardware multiplier and a modified Harvard bus structure (separate program and data buses), enabling single-cycle instruction execution for most instructions. The nanoWatt technology provides multiple power-saving modes (idle, sleep, low-power timer1 oscillator) that allow the device to draw microamp-level standby currents, making it well-suited for mains-battery and energy-harvesting designs. Typical applications include industrial control panels with character or graphic LCDs, consumer appliance user interfaces, medical monitoring devices with alphanumeric displays, white-goods control boards, instrument cluster readouts, and battery-powered metering or sensor nodes that need a built-in segmented display. When designing with this part, plan the LCD segment-to-pin mapping carefully because the chip multiplexes segment lines with digital I/O. Decouple VDD with a 100nF ceramic capacitor close to the pins and reserve the MCLR pin for a proper reset network or ICSP access. For low-power designs, route unused I/O as outputs with defined levels and use sleep mode aggressively. This page synthesizes distributor pricing, same-family and cross-family drop-in alternatives, and practical design notes not collected in any single manufacturer datasheet.

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PIC16F917-I/PT - 8-Bit 20MHz MCU 14KB Flash LCD 44-TQFP
PIC16F917-I/PT

PIC16F917-I/PT - 8-Bit 20MHz MCU 14KB Flash LCD 44-TQFP

The Microchip Technology PIC16F917-I/PT is an 8-bit CMOS flash-based microcontroller from the PIC16F91X family, featuring an integrated LCD driver and nanoWatt Technology for ultra-low-power operation. It delivers 20 MHz instruction execution (200 ns instruction cycle) with up to 14 KB of flash program memory (8K x 14 words), 352 bytes of RAM, and 256 bytes of EEPROM, all housed in a 44-pin TQFP (10x10 mm) package with 35 I/O pins and one input-only pin (36 total). The device operates from 2.0 V to 5.5 V and includes an internal 32 kHz to 8 MHz oscillator with software-selectable frequency options. An 8-bit PIC microcontroller (MCU) is a RISC-based, single-chip computer built on a Harvard architecture that separates program and data memory paths, allowing simultaneous fetch and access for higher throughput at lower clock rates. PIC microcontrollers sit within the broader 8-bit MCU category, which is positioned below 16-bit and 32-bit MCUs in compute power but excels in deterministic real-time control, ultra-low power consumption, and cost-sensitive embedded applications. The LCD driver integrated into the PIC16F917 supports up to 96 segments, eliminating the need for an external LCD controller in user-interface designs. Key differentiating features include a 25 mA source/sink I/O capability for direct LED drive, two 8-bit timers (TMR0, TMR2), one 16-bit timer (TMR1), an Enhanced Watchdog Timer (EWDT), and Brown-Out Reset (BOR) with software control. The nanoWatt Technology offers multiple power-managed modes (Run, Idle, Sleep) to extend battery life in portable instruments. A 10-bit Analog-to-Digital Converter (ADC) with up to 14 channels supports mixed-signal sensing applications. The PIC16F917 utilizes Microchip's enhanced mid-range core with 35 single-word instructions, an 8-level hardware stack, and direct/indirect addressing modes. Its integrated LCD driver supports static, 1/2, 1/3, and 1/4 multiplexed LCDs with variable bias, simplifying glass-panel integration. The internal oscillator is factory-calibrated to ±1% accuracy, reducing external component count. Typical applications include consumer appliances (washing machines, microwave ovens, thermostats) requiring LCD user interfaces, industrial control panels with segmented displays, medical instruments (blood pressure monitors, glucose meters), automotive instrument clusters (non-safety-critical segments), metering equipment with LCD readouts, and battery-powered handheld devices. The wide 2.0 V to 5.5 V operating range supports both 3.3 V and 5 V designs. When designing with this part, ensure that the internal oscillator configuration matches the application's timing accuracy requirement. Decoupling capacitors (100 nF ceramic) should be placed within 3 mm of VDD, and the MCLR pin should be pulled high through a 10 kΩ resistor for normal operation. Programming/debug is supported via ICSP (In-Circuit Serial Programming) using the PGD/PGC pins, compatible with PICkit 3, MPLAB ICD 3, and MPLAB REAL ICE tools. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone. Where datasheet values were unavailable, [DATA_NEEDED] markers flag parameters requiring verification against the latest Microchip revision.

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PIC16F917T-I/PT - 8-Bit MCU, 14KB Flash, 36 I/O, TQFP-44 | Microchip
PIC16F917T-I/PT

PIC16F917T-I/PT - 8-Bit MCU, 14KB Flash, 36 I/O, TQFP-44 | Microchip

The Microchip PIC16F917T-I/PT is an 8-bit PIC16 family flash microcontroller with 14KB (8K x 14) program memory, 352 bytes of RAM, and a 44-pin TQFP (10x10 mm) package, operating up to 20 MHz from a 2.0V to 5.5V supply. According to the Microchip PIC16F91X datasheet (DS39630E), the device integrates an integrated LCD driver with up to 36 segment outputs, an internal oscillator, a 14-channel 8-bit ADC, nanoWatt power management, and up to 36 digital I/O pins. An 8-bit flash microcontroller (MCU) is a single-chip computer that combines a CPU, non-volatile program memory, RAM, and peripherals on one die. The PIC16F917 sits in the broader hierarchy: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. PIC mid-range devices use a RISC architecture with 35 single-word instructions and 200 ns instruction execution at 20 MHz, providing deterministic timing for real-time control loops while keeping the toolchain and code footprint small. Key features include 14KB flash with self-programmability, 256 bytes EEPROM for data storage, two analog comparators with reference, PWM, capture/compare, MSSP (SPI/I2C), USART, and a real-time clock with low-power nanoWatt modes (sleep current under 1 uA typical). The on-chip LCD driver supports static, 1/2, 1/3, and 1/4 multiplex displays with software-controlled contrast, eliminating external LCD controller ICs in many human-machine interface designs. Typical applications include white-goods and small-appliance user interfaces with LCD panels, battery-powered metering, industrial sensor front-ends, and consumer products that need mixed analog/digital I/O without a costly MPU. The wide 2.0-5.5V range simplifies single-cell Li-ion or multi-cell alkaline designs. When designing with this part, reserve adequate PCB area for decoupling and route the analog AVcc/AVss pair symmetrically around the QFP body to minimize ADC reference noise.

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PIC16F946-I/PT - 20MHz 8-Bit Flash MCU | Microchip Technology
PIC16F946-I/PT

PIC16F946-I/PT - 20MHz 8-Bit Flash MCU | Microchip Technology

The Microchip Technology PIC16F946-I/PT is an 8-bit flash-based PIC microcontroller with a 20 MHz maximum operating frequency, 14 KB of programmable flash organized as 8K x 14 words, and a 64-pin TQFP package measuring 10 mm x 10 mm. The device combines a compact RISC architecture with LCD-driver capability, flexible timers, an extended watchdog timer, and nanoWatt power-management features. A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one package. The PIC16F946 belongs to the PIC16 family of 8-bit CMOS microcontrollers, a category commonly used for embedded control, human-interface, instrumentation, and low-to-medium-speed automation systems. Its dedicated LCD-driver outputs reduce external display-controller requirements in applications using segmented or dot-matrix LCDs. The PIC16F946-I/PT provides up to 168 LCD segments, an internal oscillator spanning 32 kHz to 8 MHz, and two 8-bit timers plus one 16-bit timer. The extended watchdog timer supports reliable recovery from unexpected program flow, while brown-out reset provides controlled startup when the supply voltage falls below its operating threshold. A 64-pin TQFP package provides broad I/O availability while supporting a 2.0 V to 5.5 V operating-voltage range. According to the Microchip PIC16F946 manufacturer datasheet 41265A, the controller uses a Harvard-style architecture with flash program memory and data memory, executes its instruction set in as little as 200 ns, and includes an instruction set described as 35 single-word instructions. In-Circuit Serial Programming allows firmware programming and debugging without removing the device from its circuit, accelerating prototype bring-up and production programming. Typical uses include digital panel meters, industrial measurement equipment, environmental monitors, pump and valve controllers, and compact consumer appliances. Its LCD driver is particularly useful in human-interface equipment requiring multiple alphanumeric or graphical indicators. The internal oscillator also allows designs to start without a separate crystal when precision beyond the internal clock range is unnecessary. Designers should verify the LCD segment mapping, oscillator tolerances, and timing requirements in the manufacturer datasheet before layout release. Place decoupling capacitors close to the supply pins, reserve a programming interface for In-Circuit Serial Programming, and confirm that the selected crystal or external clock remains compatible with the intended operating frequency. This product page combines device specifications, qualified replacement guidance, comparison parameters, and practical implementation notes to support faster component selection and PCB planning.

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PIC16HV540-04/P - 8-Bit 4MHz OTP MCU 768B EPROM 18-PDIP | Microchip
PIC16HV540-04/P

PIC16HV540-04/P - 8-Bit 4MHz OTP MCU 768B EPROM 18-PDIP | Microchip

The Microchip Technology PIC16HV540-04/P is an 8-bit CMOS RISC microcontroller built on the legacy PIC16C5x core, integrating a 768-byte (512 x 12) one-time-programmable EPROM program memory, 25 bytes of RAM, and an on-chip shunt voltage regulator that accepts a wide 3.5 V to 15 V supply range. Operating at up to 4 MHz (200 ns instruction cycle), it offers 12 digital I/O lines and executes one instruction per cycle using only 33 single-word opcodes, delivering the characteristic 2:1 code compression over other 8-bit MCUs in its class. It comes in a through-hole 18-pin PDIP package and is currently in production per Microchip's product page. An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data path, integrating a CPU, program memory, data RAM, and peripherals. RISC-based MCUs execute one instruction per clock cycle and use a small, orthogonal instruction set, allowing compact code and predictable timing. Within the broader hierarchy, an 8-bit MCU is a sub-category of microcontroller, itself a category under microcontrollers, embedded controllers, and integrated circuits. The PIC16HV540 specifically belongs to the PIC16C5x legacy family of OTP-based EPROM devices, distinguished from flash-based PIC16F parts and from PIC18/PIC24 families by its 12-bit wide instruction word. The most distinctive features of the PIC16HV540-04/P are its integrated shunt voltage regulator (eliminating the need for an external 5 V regulator in many designs), 33-instruction orthogonality (PIC16C5x-compatible), and wide 3.5 V-15 V supply tolerance. The internal regulator accepts unregulated battery or bus power directly, reducing external BOM. The OTP EPROM supports one-time field programming via standard Microchip development tools, making the device suitable for fixed-function production firmware. Architecturally, the PIC16HV540-04/P combines a Harvard RISC core with a 12-bit program word, 8-bit data path, a two-level hardware stack, and dedicated 8-bit timer. Watchdog timer, sleep mode, and interrupt logic are integrated, with an external RC/oscillator clock source required. The wide supply range is enabled by an internal shunt regulator that clamps the die supply to a safe internal voltage while dissipating excess energy thermally. Typical applications include appliance control modules, automotive body controllers, battery-powered sensor nodes, simple LED driver controllers, low-cost replacement of discrete logic, and hobby/educational microcontroller projects where the 4 MHz performance, 12-bit instruction width, and wide supply input are advantageous. Designers should plan for an external clock source (RC network or crystal/ceramic resonator) and confirm OTP programming during prototype runs. Because the PIC16HV540-04/P uses OTP EPROM, firmware updates are not possible in-circuit; the part is intended for mature, stable production code rather than iterative development. This page synthesizes current distributor pricing, drop-in replacement candidates from Microchip's own family, comparison tables, and practical design notes that go beyond the manufacturer's datasheet alone, helping engineers evaluate the PIC16HV540-04/P against flash-based alternatives and modern 8-bit MCUs.

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PIC16HV540-04/SO - 4MHz 8-Bit OTP MCU w/ Voltage Regulator | Microchip
PIC16HV540-04/SO

PIC16HV540-04/SO - 4MHz 8-Bit OTP MCU w/ Voltage Regulator | Microchip

The Microchip Technology PIC16HV540-04/SO is an 8-bit CMOS RISC microcontroller with an integrated on-chip shunt voltage regulator, 4 MHz maximum clock speed, 768 bytes (512 x 12) of One-Time Programmable (OTP) program memory, and 25 bytes of RAM, housed in an 18-pin SOIC (SO) package. It executes 33 single-word, single-cycle instructions in 200 ns (4 MHz) and is built around the PIC16C5xx family architecture with 12-bit wide opcodes for 2:1 code compression over competing 8-bit MCUs. An 8-bit microcontroller (MCU) is a programmable logic device that integrates a CPU, memory (ROM/RAM), and I/O peripherals on a single silicon die; PIC microcontrollers use a Harvard RISC architecture that separates program and data memory buses. The PIC16HV540 specifically belongs to the enhanced PIC16C54 family - the smallest, lowest-cost PIC line intended for high-volume embedded control. Its on-chip shunt regulator allows direct operation from an unregulated DC source (typical industrial 5V, 9V, or 12V rails) without an external 7805-style LDO, simplifying BOM in cost-sensitive designs. Key features include 12 digital I/O pins, a programmable watchdog timer, an 8-bit timer/counter, internal RC oscillator, power-on reset, brown-out detection support, and an operating voltage range of 3.5V to 15V enabled by the integrated voltage regulator. The HV (high-voltage) suffix denotes the on-chip regulator, which is the key differentiator from the non-HV PIC16C540. The 18-pin SOIC provides a compact surface-mount footprint for moderate-density designs. Architecturally, the device uses a 12-bit instruction word with single-cycle execution except for branch instructions (2 cycles). The OTP program memory is one-time programmable - suitable for production but not for prototyping iteration. The integrated voltage regulator supports both 5V and 9V/12V system rails with minimal external components. Typical applications include appliance control, sensor signal conditioning, battery chargers, smart lighting, automotive accessories, and any cost-driven embedded product requiring 8-bit processing with a wide Vin tolerance. The wide voltage range (3.5V to 15V) makes it suitable for industrial 12V systems, automotive 12V buses, and unregulated AC-derived DC rails. When designing with this part, note that OTP precludes firmware updates; for prototyping use a windowed (JW) or Flash-based alternative. The on-chip voltage regulator requires an external shunt resistor and bulk capacitance sized per the datasheet regulator topology section. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16HV540-04/SS - 4MHz 8-Bit MCU with Shunt Vreg | Microchip
PIC16HV540-04/SS

PIC16HV540-04/SS - 4MHz 8-Bit MCU with Shunt Vreg | Microchip

The Microchip Technology PIC16HV540-04/SS is a RISC-based 8-bit CMOS microcontroller featuring an integrated shunt voltage regulator, 512 words of 12-bit-wide EPROM program memory and 25 bytes of RAM, all packaged in a 20-pin SSOP. Operating from 3.5V to 15V supply and clocked at 4 MHz, it executes 33 single-word instructions in a highly orthogonal 12-bit instruction set that delivers roughly 2:1 code compression over competing 8-bit MCUs. The on-chip shunt regulator eliminates an external 78L05-style regulator in cost-sensitive and battery-powered designs, allowing direct connection to loosely regulated rails. A microcontroller (MCU) is an integrated circuit containing a CPU core, program memory, RAM, and programmable I/O peripherals on a single die. Within the MCU taxonomy the PIC16HV540 sits in the 8-bit PIC16 baseline/mid-range family (hypernyms: PIC16 -> baseline PIC -> 8-bit microcontroller -> microcontroller -> semiconductor). The PIC16C5x instruction set - the direct predecessor to the PIC16HV540 - is widely regarded as the simplest industrial MCU ISA, which keeps assembly-language learning curves short and code density high. Key specifications include 12 I/O pins, an internal RC or external clock option, a 4 MHz maximum oscillator frequency, and a 1.5 ms power-on reset. The internal shunt regulator (commonly referred to as the 'HV' or high-voltage block) draws its bias current directly from the supply pin and clamps VDD to a regulated 5 V nominal regardless of VIN in the 3.5 V to 15 V range - though operationally the part is specified for supply voltages 3.5 V to 15 V with full-speed performance. Typical applications span remote keyless-entry fobs, low-end IR/RF remote controls, simple sensor signal conditioning, and appliance timer controllers. The integrated regulator, low pin count, and OTP program memory make the PIC16HV540 attractive for sealed, low-cost, replaceable consumer products where software is factory-customized and field updates are not required. When designing with this part, evaluate whether OTP or windowed EPROM matches your production flow. Plan for a 25-byte RAM ceiling and a single 8-bit timer - sufficient for blink-and-beep logic but tight for any protocol stack. For designs needing flash re-programmability, drop-in PIC16F alternatives exist in the same SSOP-20 footprint.

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PIC16HV540-04I/P - 8-Bit 4MHz OTP MCU w/ HV Reset | Microchip
PIC16HV540-04I/P

PIC16HV540-04I/P - 8-Bit 4MHz OTP MCU w/ HV Reset | Microchip

The Microchip Technology PIC16HV540-04I/P is a PIC16 family 8-bit CMOS one-time-programmable (OTP) microcontroller with an integrated high-voltage (HV) reset generator, delivered in an 18-pin PDIP through-hole package and rated for the industrial temperature range (-40C to +85C). It executes instructions in 200 ns at 4 MHz, provides 768 bytes (512 x 12) of OTP program memory, 25 bytes of data RAM, and 12 bidirectional I/O pins. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals. The PIC16HV540 belongs to the RISC (Reduced Instruction Set Computer) subfamily of 8-bit microcontrollers, sitting beneath the broader category of embedded controllers and above general-purpose microprocessors in the computing hierarchy. Its 12-bit-wide instruction word and 33 single-word instruction set yield approximately 2:1 code compression versus competing 8-bit CISC architectures, simplifying firmware development. Key features of this -04I/P variant include a 4 MHz maximum clock, an on-chip shunt voltage regulator that allows direct operation from 5 V to 12 V supplies without an external regulator, a watchdog timer (WDT), power-on reset (POR), and brown-out detect (BOD). The /P suffix indicates a plastic PDIP-18 package; the -04 speed grade limits the oscillator to 4 MHz; the I suffix marks the industrial temperature grade. The integrated HV reset eliminates the need for an external reset supervisor, reducing BOM count in cost-sensitive designs. Typical applications include low-cost battery chargers, smoke detectors, LED controllers, simple sensor interfaces, and replacement of discrete logic in appliances and toys. The wide supply range (3.5 V to 15 V with internal regulator) suits unregulated or battery-fed systems. Designers should ensure OTP programming is performed before final PCB assembly because OTP parts cannot be re-programmed in-circuit once sealed.

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PIC16HV540-04I/SO - 4MHz 8-bit MCU w/ Voltage Regulator | Microchip
PIC16HV540-04I/SO

PIC16HV540-04I/SO - 4MHz 8-bit MCU w/ Voltage Regulator | Microchip

The Microchip PIC16HV540-04I/SO is an 8-bit RISC microcontroller built around an enhanced PIC16C54 core, integrating an on-chip shunt voltage regulator that allows direct operation from 3.5V to 15V supplies without external regulation. Housed in an 18-pin SOIC package with 12 I/O pins, 768B (512x12) of OTP program memory, and 25B of RAM, it executes 33 single-word instructions in a single 200ns cycle at 4MHz. An 8-bit PIC microcontroller is a Harvard-architecture CMOS device using a reduced instruction set (RISC) tuned for embedded control. It belongs to the broader category of microcontrollers -> microcontrollers and microprocessors -> semiconductors -> integrated circuits. The "HV" prefix in the part number denotes the integrated high-voltage shunt regulator, eliminating the need for an external 5V LDO when powered from a 9V or 12V rail - a unique feature compared with most PIC16C5x siblings. Key features include 4MHz maximum clock, 200ns instruction cycle, 12-bit wide opcodes for 2:1 code compression, 8-bit data path, 12 configurable I/O pins sharing bidirectional ports, and an industrial temperature range of -40C to +85C. The integrated voltage regulator also simplifies designs that previously required external Zener or LDO networks. The PIC16HV540 architecture pairs an EPROM-based program memory with a 7-stage instruction pipeline visible only to the developer through its single-cycle execution model. The 12-bit instruction width combined with full orthogonal addressing eliminates special-purpose accumulator constraints, making the device unusually easy to program given its 33-instruction set. Typical applications include battery chargers, automotive subsystems, industrial control logic, simple timer/counter replacements, and any embedded node previously built around discrete 555-style circuitry. The wide supply tolerance supports direct 9V or 12V battery operation. Designers should budget EPROM programming time and ensure the OTP windowless package suits their production volume - the PIC16F equivalent is recommended for prototype or low-volume runs. The PIC16HV540-04I/SO variant ships in industrial temperature grade. This page synthesizes distributor pricing, drop-in same-package alternatives (including PIC16HV540-04/SO and PIC16HV540T-04/SO), cross-references and practical design notes not found in the manufacturer datasheet alone.

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PIC16HV540-04I/SS - 8-Bit OTP MCU w/ HV Shunt Regulator | Microchip
PIC16HV540-04I/SS

PIC16HV540-04I/SS - 8-Bit OTP MCU w/ HV Shunt Regulator | Microchip

The Microchip Technology PIC16HV540-04I/SS is an 8-bit CMOS RISC microcontroller with an integrated on-chip high-voltage shunt regulator, packaged in a 20-pin SSOP. It executes 33 single-word instructions, all single-cycle (200 ns) except program branches, and integrates 768 bytes (512 x 12) of one-time programmable (OTP) EPROM program memory plus 25 bytes of general-purpose RAM. The device runs at 4 MHz from a wide 3.5 V to 15 V supply and is offered in the industrial -40C to +85C temperature range with 12 digital I/O pins. A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, and peripheral I/O. Within the semiconductor hierarchy, MCUs belong to the broader category of microcontrollers -> embedded processors -> digital ICs -> semiconductors. The PIC16HV540 specifically belongs to Microchip's PIC16 family, which uses a Harvard RISC architecture with 12-bit-wide opcodes delivering 2:1 code compression over typical 8-bit CISC competitors. Its defining feature versus standard PIC16C54 parts is the on-chip shunt voltage regulator that lets the device operate directly from 5 V / 9 V / 12 V / unregulated supplies. Key features include 200 ns instruction execution (5 MHz internal throughput), 2-level hardware stack, 8-bit timer/counter with 8-bit prescaler, watchdog timer with its own on-chip RC oscillator, and programmable code protection. The integrated high-voltage shunt regulator (HV540 suffix) accepts up to 15 V at VDD and clamps it to the internal logic level, eliminating external 5 V regulators in many low-cost applications. Power-saving SLEEP mode reduces IPD to typical low-microamp levels. Architecturally, the PIC16HV540 uses a 12-bit instruction word fetched from OTP EPROM while data accesses a separate 8-bit RAM bus - a classic Harvard layout that allows instruction and data fetch in a single cycle. The on-chip voltage regulator is a parallel (shunt) topology, not a series LDO, which means the device can be powered from any DC source between 3.5 V and 15 V with appropriate series resistance to limit shunt current. Typical applications include low-cost 9 V and 12 V battery or wall-adapter powered appliances, remote controls, sensor signal conditioning, LED drivers, smoke detectors, and any embedded control node that benefits from a single-supply rail without external regulation. The PIC16HV540-04I/SS is well suited to high-volume consumer and industrial designs where its 4 MHz performance, 12-bit OTP code density, and integrated shunt regulator reduce total BOM cost. When designing with this part, calculate the external shunt resistor to limit the regulator current within the device's safe operating range at worst-case VIN. The internal pull-ups and reset circuit must be properly enabled via configuration bits; consult the datasheet's CONFIG register description. Because the device is OTP, firmware must be fully validated before programming - there is no in-system reprogramming. This page synthesizes distributor pricing, drop-in same-package alternatives, and design notes not found in any single manufacturer datasheet or distributor catalog.

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PIC16HV540-20/P - 8-Bit 20MHz OTP MCU with On-Chip Regulator | Microchip
PIC16HV540-20/P

PIC16HV540-20/P - 8-Bit 20MHz OTP MCU with On-Chip Regulator | Microchip

The Microchip Technology PIC16HV540-20/P is an 8-bit EPROM-based CMOS microcontroller with an integrated on-chip voltage regulator, available in a 18-pin PDIP through-hole package. Operating from 3.5V to 15V supply with a maximum clock rate of 20MHz, it offers 768 bytes of OTP program memory (512 x 12-bit words) and 25 bytes of RAM, with 12 digital I/O pins. A key feature is the on-chip 3V and 5V shunt regulator that eliminates the need for an external regulator when powered from unregulated 9V or 12V batteries or mains adapters, simplifying power supply design and reducing BOM cost. A microcontroller (MCU) is a single-chip computer containing a processor core, program memory, data memory, and programmable I/O peripherals; the PIC16HV540 belongs to the base-level PIC16C5X-compatible 8-bit RISC microcontroller family in the broader taxonomy of microcontroller -> embedded processor -> integrated circuit -> semiconductor. The 33 single-word instruction set and 12-bit-wide orthogonal instructions deliver 2:1 code compression over competing 8-bit MCUs in the same price class. Key features include 20MHz maximum operating frequency (4MHz factory-default oscillator configuration available, hence the -20 speed suffix), 12 I/O pins with individual direction control, an 8-bit timer/counter, a watchdog timer, and power-on reset. The internal voltage regulator is the defining differentiator; it allows direct battery or transformer-rectifier connection with no external regulation stage. The device uses a Harvard-architecture RISC core with separated program and data buses, fully static operation, and a wide operating temperature range appropriate for embedded industrial and commercial environments. The OTP program memory is one-time programmable, targeting volume production where final firmware is fixed. Typical applications include 9V or 12V battery-powered appliances, mains-powered consumer products using transformer-rectifier supplies without regulation, sensor interface controllers, simple timing and sequencing logic replacements, automotive accessory modules, and low-cost industrial controllers where the on-chip regulator reduces part count and PCB area. When designing with the PIC16HV540, verify the chosen clock frequency matches the supply voltage across the full operating range; the -20 speed grade requires appropriate oscillator configuration, and the user must decide between the factory-masked oscillator and an external RC/crystal source based on timing accuracy requirements. This page consolidates pricing across multiple distributors, all five drop-in alternatives sharing the 18-PDIP footprint, and practical design notes to accelerate selection for new and existing 8-bit designs.

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