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PIC16C923-04/PT

PIC16C923-04/PT - 8-bit OTP MCU, 7KB EPROM, LCD Driver, TQFP-64

The Microchip Technology PIC16C923-04/PT is an 8-bit CMOS OTP-based RISC microcontroller that integrates an LCD driver module with the PIC16 family architecture, housed in a 64-pin TQFP (10x10 mm) package. Headline parameters: 7KB (4K x 14) EPROM program memory, 176 bytes SRAM, 4 MHz maximum operating frequency (200 ns instruction cycle at 4 MHz, equivalent to 500 ns instruction execution), and integrated LCD driver capable of 32 segments and 4 commons. The /PT suffix designates the TQFP-64 surface-mount package with commercial temperature grade. A PIC microcontroller is a Harvard-architecture RISC processor designed for embedded control. The PIC16C family specifically targets mid-range applications, balancing code density, peripheral integration, and ease of programming. The 'C' in PIC16C923 denotes One-Time Programmable (OTP) EPROM program memory, which is programmed once and cannot be erased, making this part suitable for low-volume production and cost-sensitive end products where firmware revision is finalized before manufacturing. Key features include 35 single-word instructions (most are single-cycle), 8-level hardware stack, on-chip integrated LCD driver module with 32-segment and 4-common capability, synchronous serial port configurable as 3-wire SPI or 2-wire I2C, 8-bit ADC (per family datasheet), and up to 25-52 I/O pins depending on package variant. The 64-pin TQFP package (TFQFP per JEDEC) provides sufficient I/O for LCD-driven human-machine interface applications. The PIC16C923 architecture uses a 14-bit instruction word with an 8-bit data path, providing compact code density. OTP EPROM programming is performed via ICSP (In-Circuit Serial Programming), eliminating pre-programming steps. The integrated LCD driver directly biases common/segment pins, eliminating external LCD controller ICs and reducing BOM cost in display products. Typical applications include industrial weighing scales with LCD readouts, medical instrumentation displays, point-of-sale terminals, home appliance control panels, automotive dashboard displays, and consumer electronics with character or segment LCDs. The integrated LCD driver particularly suits battery-powered portable products where display power efficiency is essential. Design consideration: OTP EPROM cannot be field-updated. Engineers should use windowed ceramic packages or a flash-based PIC16F equivalent for prototype development, then transition to the OTP PIC16C923 for production. The 4 MHz maximum frequency limits this part to applications where 1 MIPS processing is sufficient. This page synthesizes distributor pricing, Microchip same-family alternatives, application guidance, and practical design notes not consolidated in the manufacturer datasheet. Engineers evaluating mid-range LCD-driven embedded designs will find drop-in alternatives and concrete parametric comparisons.

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PIC16C923-04I/L

PIC16C923-04I/L - 8-bit OTP MCU, 7KB EPROM, LCD Driver | Microchip

The Microchip Technology PIC16C923-04I/L is a CMOS OTP-based 8-bit RISC microcontroller in the PIC16C9XX family, integrating an on-chip LCD driver, 7KB EPROM program memory, 176 bytes of SRAM, and 52 I/O pins in a 68-pin PLCC (J-lead) package. The device executes instructions in a single 500 ns instruction cycle (4 MHz oscillator) and offers 35 single-word instructions for compact code density. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, I/O peripherals, and timers on one die, executing one byte (8 bits) of data per instruction. The PIC16C923-04I/L belongs to the hypernym hierarchy: microcontroller -> embedded controller -> RISC microcontroller -> OTP (One-Time Programmable) microcontroller -> CMOS 8-bit MCU. This taxonomy reflects the part's position in the broader semiconductor and embedded-system product tree. Key features include an integrated LCD driver capable of driving 32 segments and 4 commons, a synchronous serial port configurable as either 3-wire SPI or 2-wire I2C, a 14-bit instruction word with 8-level hardware stack, and an operating voltage range of 2.5 V to 6.0 V. The 68-pin PLCC package (case style L, industrial temperature grade -40C to +85C) supports designs that require a socketed, easily-programmable LCD-capable controller. The PIC16C923-04I/L is built on Microchip's enhanced PIC 16C core architecture, featuring Harvard-style separate program and data buses for deterministic single-cycle execution. The integrated LCD module supports static, 1/2, 1/3, and 1/4 duty cycles with multiple bias modes, eliminating the need for an external LCD driver and reducing BOM cost in glass-display products. Typical applications include consumer electronics with LCD displays (microwave ovens, washing machines, thermostats), industrial control panels, instrumentation with segment displays, and any cost-sensitive human-machine interface that benefits from on-chip LCD bias generation. The OTP program memory is ideal for mature, low-cost, high-volume production runs where field firmware updates are not required. When designing with this device, note that OTP memory cannot be electrically erased - prototype code on a windowed (JW) variant for development, then move to the L (PLCC) package for production. The 500 ns instruction cycle supports instruction execution at up to 4 MHz; for higher speed requirements consider PIC16C925 (8 MHz) or PIC16C924 family members with more RAM.

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PIC16C923-04I/PT

PIC16C923-04I/PT - 8-Bit OTP MCU 7KB 4MHz 64-TQFP | Microchip

The Microchip Technology PIC16C923-04I/PT is a CMOS OTP-based 8-bit microcontroller in the PIC16C family, delivering 4 MHz CPU speed (200 ns minimum instruction cycle), 7 KB (4K x 14) of EPROM program memory, 176 bytes of SRAM, and 25 general-purpose I/O pins in a 64-pin TQFP (10x10 mm) package with industrial temperature grade (-40C to +85C). The part integrates an on-chip LCD driver capable of driving up to 32 segments and 4 commons, an 8-bit A/D converter with up to 5 channels, a synchronous serial port configurable as either SPI or I2C, a USART, and three timer/counters, making it a single-chip solution for human-interface and instrumentation designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/EPROM/Flash), working memory (RAM), and programmable I/O peripherals. The PIC16C family uses a RISC (Reduced Instruction Set Computer) Harvard architecture with only 35 single-word instructions, where every instruction except branches executes in a single instruction cycle (4 oscillator clocks). This architecture achieves high throughput per MHz and deterministic timing, which is why PIC MCUs have been adopted across industrial control, automotive subsystems, white goods, and battery-powered embedded products since the 1990s. Key features of the PIC16C923 include the integrated LCD driver that offloads segment/commons timing from the CPU, a wide 3.0 V to 6.0 V operating voltage range suited to 5 V industrial logic rails, programmable code protection, a watchdog timer with on-chip RC oscillator for reliable operation without external components, and an enhanced capture/compare/PWM (ECCP) module. OTP (One-Time-Programmable) EPROM is field-programmable but not erasable, which fits cost-sensitive production runs. Architecturally, the PIC16C923 uses an 8-bit ALU with a 14-bit instruction word, providing 4 KB of program address space (8K x 14 bits of EPROM). The peripheral set targets embedded human-machine-interface designs where a microcontroller, A/D front end, and LCD bias generation are co-located on a single die. Typical applications include industrial control panels with integrated LCD readouts, consumer appliances with segmented displays, instrumentation front ends with A/D conversion, and security/alarm keypads. The integrated LCD driver removes the need for an external segment-driver IC, reducing both BOM cost and PCB area. When designing with this device, engineers must plan code into the OTP window carefully because OTP memory cannot be re-programmed, and the 64-pin TQFP footprint requires careful PCB layout to maintain signal integrity on the LCD segment traces. A reliable programmer and verified in-circuit emulator are recommended for development. This page synthesizes verified distributor pricing, drop-in same-package alternatives, and practical design notes that go beyond the manufacturer datasheet summary, giving procurement and design engineers a single reference for evaluation.

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PIC16C923-08/PT

PIC16C923-08/PT - 7KB OTP 8-bit MCU w/ LCD Driver | Microchip

The Microchip Technology PIC16C923-08/PT is a high-performance 8-bit CMOS OTP microcontroller with an integrated LCD driver, packaged in a 64-pin TQFP (PT) surface-mount form factor. It executes a single instruction cycle in 500 ns at an 8 MHz clock, delivers 7 KB (4K x 14) of OTP program memory and 192 bytes of general-purpose SRAM organized in 8-bit-wide registers. The device belongs to the PIC16C family and operates from a 5 V supply. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, and I/O peripherals on one die. The PIC16C923 sits within Microchip's mature PIC16C OTP family, a sub-family of PIC microcontrollers -> 8-bit MCUs -> microcontrollers -> integrated circuits -> semiconductors. It targets embedded applications requiring deterministic execution and a rich on-chip peripheral set without in-system reprogrammability. Key features include an integrated LCD driver capable of driving segmented displays directly, 33 digital I/O pins, an 8-bit A/D converter, a USART, a Synchronous Serial Port (SSP), and a Capture/Compare/PWM (CCP) module. The device supports 14-bit-wide instructions, 8-level deep hardware stack, and offers power-managed modes for low-power embedded designs. The PIC16C923-08/PT uses an enhanced Harvard RISC architecture with separate program and data buses, enabling simultaneous instruction fetch and operand access. The OTP program memory is factory-programmable only, distinguishing this part from flash-based PIC16F devices; it is intended for high-volume production runs rather than field re-programmability. Typical applications include industrial control panels with LCD readouts, home appliance front-panel controllers, medical instrumentation displays, automotive dashboard segments (non-safety), consumer electronics with character LCDs, and security system keypads/annunciators. The integrated LCD driver eliminates the need for an external display controller, reducing BOM cost in HMI-centric designs. When designing with this part, note that OTP memory cannot be re-programmed in-circuit - firmware must be fully validated before commitment. For prototypes or field-upgradable designs, choose the flash-based PIC16F926-I/PT or PIC16F946-I/PT from the same Microchip LCD-driver family. The 64-TQFP package requires standard surface-mount assembly with JEDEC JEDEC-MS-026-compliant land pattern.

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PIC16C923-08I/L

PIC16C923-08I/L - 8-Bit CMOS MCU with LCD Driver, 7KB OTP, 68-LCC | Microchip

The Microchip PIC16C923-08I/L is an 8-bit CMOS OTP-based RISC microcontroller with an integrated LCD driver, packaged in a 68-pin PLCC (LCC, J-Lead) industrial-temperature (-40C to +85C) form factor. It features a 14-bit instruction word, 7KB (4K x 14) of on-chip EPROM/OTP program memory, 176 bytes of data RAM, 8 general-purpose registers, and 52 digital I/O lines. According to the Microchip product page, the device executes instructions in 500 ns at 8 MHz (8 MHz oscillator) and supports PIC16C-series core with only 35 single-word instructions, all single-cycle except program branches. A microcontroller is a single-chip computer that integrates a CPU, memory, and peripheral I/O on one die; an 8-bit MCU like the PIC16C923 is the workhorse class for industrial control, instrumentation, and appliance front-panel human-machine interfaces. The PIC16C923 sits within the Microchip PIC16C family (legacy CMOS/OTP generation) under the broader hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> RISC MCU -> CMOS OTP MCU -> PIC architecture. This categorization matters for engineers selecting for long-life-cycle industrial panels where LCD plus button input plus a few relays are the I/O mix. Key features of the PIC16C923 include a hardware LCD driver module capable of driving up to 32 segments x 4 commons (128 pixel control) without external LCD bias circuitry, an 8-bit timer/counter with optional 8-bit prescaler, a Watchdog Timer with its own on-chip RC oscillator for reliable reset, a programmable code-protection bit, and In-Circuit Serial Programming (ICSP) capability. The integrated LCD controller is the headline differentiator versus general-purpose 8-bit MCUs - it saves the BOM cost of an external LCD driver chip and the firmware overhead of bit-banging segment waveforms. The PIC16C923-08I/L variant operates from 5V (4.5V to 5.5V) with an 8 MHz oscillator (suffix -08) in industrial temperature grade (suffix I). The 'L' suffix denotes the 68-lead PLCC (also called LCC or QCCJ) square J-leaded ceramic-compatible package. Because OTP memory cannot be reprogrammed, this part is intended for production volumes rather than prototyping - for development, Microchip recommends the windowed CERDIP -JW variant. Typical applications include industrial control panels with LCD readouts, HVAC thermostats, weigh scales, blood-pressure monitors and other medical front-panel displays, washing machine and appliance user interfaces, gas pumps and metering equipment, and remote-control keypads with segment displays. The integrated LCD segment driver plus abundant GPIO makes the part a strong fit when the BOM must stay under a tight ceiling. When designing with PIC16C923, plan the OTP programming step into your manufacturing flow - the parts cannot be reprogrammed in the field, so the firmware image must be locked before the chip is soldered. Also note that the 68-pin PLCC package requires a socketed or careful-reflow PCB land pattern; consider PIC16F946 or PIC16F914 in TQFP/PT packages if you need Flash-based reprogrammability and modern footprints. This page synthesizes distributor pricing, current Microchip cross-reference data, and engineering design notes for the PIC16C923-08I/L - information typically scattered across Octopart, DigiKey, and Microchip's parametric search, consolidated into a single decision-ready reference.

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PIC16C923T-04/L

PIC16C923T-04/L - 8-Bit 4MHz 7KB OTP MCU 68-PLCC | Microchip

The Microchip Technology PIC16C923T-04/L is an 8-bit CMOS RISC microcontroller from the PIC16C family with an integrated LCD driver, packaged in a 68-pin PLCC (J-lead, surface mount) form factor. It operates at up to 4 MHz clock frequency, delivers 7 KB of OTP (One-Time Programmable) program memory organized as 4K x 14 words, provides 176 bytes of data RAM, and exposes 52 general-purpose I/O pins. The part is supplied in tube packaging and is rated for the commercial temperature range. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripheral interfaces on a single die. The PIC16C architecture uses a Harvard RISC core with only 35 single-word instructions, a 14-bit instruction word, and a two-stage pipeline that allows most instructions to execute in a single 200 ns instruction cycle at 20 MHz (or 1 us at 4 MHz). PIC MCUs belong to the broader category of microcontrollers -> embedded processors -> semiconductors. Key differentiating features include the on-chip LCD driver supporting up to 160 segments, an integrated 8-bit A/D converter (where applicable in this sub-family), two 8-bit timers plus one 16-bit timer, a watchdog timer with on-chip RC oscillator, and the OTP program memory that allows one-time factory or prototype programming at low per-unit cost. The 68-pin PLCC package exposes sufficient I/O for LCD panel driving, key scanning, and communication peripherals (USART/SCI, SPI, I2C). Typical applications for the PIC16C923T-04/L include industrial control panels with character or graphic LCDs, instrument front panels, appliance user interfaces, automotive dashboard sub-systems (pre-AEC era designs), medical instrument displays, and any embedded design requiring segment-LCD driving without an external LCD controller. The wide commercial temperature range and 52 I/O pins enable direct keypad and LCD multiplexing. When designing with this part, note that the OTP memory cannot be re-programmed; for in-field firmware updates choose the PIC16F926 or PIC16F946 flash-based equivalent. Brown-out reset, power-on reset, and the watchdog timer should all be enabled in firmware for reliable industrial deployments. Decoupling capacitors (100 nF plus 10 uF) must be placed within 5 mm of VDD/VSS pins to suppress switching noise from the LCD charge pump. This page synthesizes distributor pricing (DigiKey, Mouser), drop-in package-compatible alternatives, and practical design notes not consolidated in any single manufacturer document.

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PIC16C923T-04/PT

PIC16C923T-04/PT - 8-Bit 4MHz OTP MCU with LCD | Microchip

The Microchip Technology PIC16C923T-04/PT is an 8-bit RISC microcontroller with 7KB (4K x 14) of one-time programmable (OTP) program memory, 176 bytes of SRAM, and an integrated LCD driver, packaged in a 64-pin TQFP (10x10 mm). It executes instructions at 4 MHz with a 500 ns instruction cycle, using only 35 single-word instructions, making it well-suited for compact embedded codebases with predictable timing. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and programmable peripherals onto one IC. Within the broader taxonomy, the PIC16C923 is a member of the 8-bit PIC16 OTP family, a sub-class of microcontrollers, which themselves belong to embedded processors and ultimately to digital ICs and semiconductors. OTP variants use one-time-programmable EPROM for code storage, providing non-volatile retention at lower cost than flash, but they cannot be re-programmed. Key features of the PIC16C923T-04/PT include built-in I2C and SPI serial interfaces, an on-chip LCD driver with dedicated segment and common pins, a 10-bit PWM module, power-on reset (POR), brown-out reset (BOR), and a watchdog timer (WDT). The integrated LCD controller simplifies human-machine-interface designs by eliminating the need for an external display driver. The PIC16C923 core uses a Harvard RISC architecture with separate program and data buses, allowing instruction fetch and operand access to occur in the same cycle. The 8-level hardware stack and 8 special-function registers provide deterministic interrupt response. An 8-bit timer/counter, capture/compare, and 10-bit PWM are integrated, alongside synchronous and asynchronous serial ports. Typical applications include alphanumeric LCD display modules, industrial control panels, instrumentation with segmented displays, point-of-sale terminals, and consumer appliance interfaces. The wide temperature-grade range of the commercial -I variant and 64-pin TQFP footprint give designers flexibility for compact HMI boards. When designing with the PIC16C923T-04/PT, choose a programmer that supports OTP EPROM (not flash) and ensure the LCD bias and segment pin allocations match your display glass. Because the device is OTP, firmware revision control is critical before programming. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16C923T-04I/L

PIC16C923T-04I/L - 8-bit OTP MCU, 7KB EPROM, LCD Driver | Microchip

The Microchip Technology PIC16C923T-04I/L is an 8-bit CMOS OTP-based microcontroller with an integrated LCD driver, 7KB of one-time-programmable EPROM program memory, 176 bytes of SRAM, and 52 general-purpose I/O pins, housed in a 68-pin PLCC (J-lead) surface-mount package rated for industrial temperature operation (-40C to +85C). What is an OTP microcontroller? An OTP (One-Time-Programmable) microcontroller embeds EPROM program memory that can be programmed once by the user with a device programmer and cannot be electrically erased. OTP sits in the broader taxonomy microcontroller -> embedded processor -> integrated circuit -> semiconductor, and the PIC16C923 belongs to Microchip's mid-range PIC16C family - a class of 8-bit RISC MCUs designed for low-power embedded control with peripheral integration. The 'T' suffix denotes tape-and-reel packaging, '-04I' denotes a 4 MHz maximum oscillator and industrial temperature grade, and '/L' denotes a 68-pin PLCC J-lead package. Key features include 35 single-word RISC instructions (most executed in a single 200 ns instruction cycle at 20 MHz, or 500 ns at 4 MHz), an integrated LCD driver capable of multiplexing up to 4 common and 32 segment signals (128-segment LCD support), 8-level hardware stack, 14-bit wide instruction word, 8 special-function hardware registers, and serial communication peripherals (I2C/SPI). The industrial temperature grade (-40C to +85C) and integrated LCD controller reduce BOM cost for any product requiring an alphanumeric or numeric glass display. Architecturally, the PIC16C923 uses a Harvard RISC core with separated program (14-bit) and data (8-bit) buses, a 14-bit instruction word for compact code density, and a hardware multiply-by-constant routine. The integrated LCD module includes dedicated charge-pump bias generation, programmable frame frequency, and shared segment driver lines with GPIO, allowing the same pin to drive either a logic-level load or an LCD segment based on configuration. Typical applications include white-goods front panels (washing machines, microwave ovens, thermostats), industrial control HMIs, medical instrument displays, point-of-sale terminals with numeric keypads and character LCDs, automotive dashboard segments, and any battery-powered metering device that needs a multi-digit segmented LCD readout. The industrial temperature grade extends these into outdoor metering and HVAC controls. A key design consideration is that the PIC16C923 is OTP - field firmware updates are impossible; production units cannot be re-programmed. Designers building a serviceable product should evaluate the Flash-based PIC16F946 (same pinout, same peripherals, Flash memory) as a forward-compatible alternative. Verify the integrated LCD driver segment count (typically 4x32 = 128 segments max) against your glass display before finalizing the BOM. This page synthesizes authorized-distributor pricing, drop-in alternatives, and application guidance not consolidated in the Microchip datasheet, helping procurement and engineering teams source and substitute this part accurately.

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PIC16C923T-04I/PT

PIC16C923T-04I/PT - 8-Bit OTP MCU with LCD Driver | Microchip

The Microchip Technology PIC16C923T-04I/PT is an 8-bit CMOS OTP-based microcontroller with integrated LCD driver, packaged in a 64-pin TQFP (10x10 mm) and operating at 4 MHz instruction frequency. It integrates 7 KB (4K x 14) of OTP program memory, 176 bytes of RAM, 52 digital I/O pins, and an on-chip LCD driver, making it a single-chip solution for human-machine interface (HMI) subsystems. According to the Microchip PIC16C923 datasheet, the part operates from 2.0 V to 5.5 V across the industrial temperature range (-40 C to +85 C). What is an OTP microcontroller? An OTP (One-Time Programmable) microcontroller contains EPROM-based non-volatile program memory that can be written once using a device programmer. Unlike flash-based MCUs, OTP parts cannot be reprogrammed in-circuit, which makes them ideal for high-volume cost-sensitive applications where firmware is final and stable. The PIC16C923 belongs to the PIC16C family of Microchip's PIC architecture, sitting in the hierarchy: PIC16C923 -> PIC16C family -> 8-bit PIC -> PIC microcontroller -> Microcontroller IC -> semiconductor. Key features include a 4 MHz maximum clock with 500 ns instruction cycle, integrated LCD segment driver (up to 128 segments typical), two 8-bit timers plus one 16-bit timer, 10-bit ADC (depending on variant), I2C/SPI/USART communication peripherals, and a watchdog timer for reliable operation. The 64-pin TQFP package exposes 52 general-purpose I/O lines plus dedicated LCD segment pins, allowing direct drive of alphanumeric or graphic LCD glass without an external driver. Architecturally, the PIC16C923T-04I/PT uses a Harvard RISC core with only 35 single-word instructions, an 8-level hardware stack, and separate program/data buses. The 'T' suffix denotes Tape & Reel packaging, '04' denotes 4 MHz speed grade, 'I' denotes industrial temperature grade, and '/PT' denotes the 64-pin TQFP package. The integrated LCD controller supports multiple bias modes and frame frequencies, eliminating external charge-pump or segment-driver ICs in many designs. Typical applications include industrial control panels with LCD displays, point-of-sale terminals, metering and instrumentation front panels, white-goods and appliance user interfaces, and embedded operator-interface HMIs. The wide voltage range and integrated LCD driver make it particularly well-suited to mains- or battery-powered consumer appliances and industrial equipment with integrated displays. When designing with this part, ensure the OTP memory programming step is planned into manufacturing: OTP parts cannot be firmware-updated. Provide adequate decoupling (0.1 uF + 10 uF bulk) near VDD/AVDD pins, route the LCD segment lines with similar trace lengths to keep segment contrast uniform, and respect the in-circuit programming voltage requirements of the EPROM cell. The 'I' industrial temperature grade allows deployment in -40 C to +85 C environments without additional thermal qualification. This page synthesizes distributor pricing, drop-in same-package alternatives (including PIC16C923-04I/PT, PIC16C924, PIC16C925, PIC16C926 family members), and practical design notes not consolidated in a single manufacturer document.

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PIC16C923T-08/L

PIC16C923T-08/L - 8-Bit OTP MCU w/ LCD Driver, 7KB | Microchip

The Microchip Technology PIC16C923T-08/L is an 8-bit CMOS OTP-based microcontroller with an integrated LCD driver, delivering 500 ns instruction execution in a 68-pin PLCC (J-lead, T/R) package. It combines 7 KB of on-chip EPROM program memory, 192 bytes of general-purpose SRAM, and an LCD driver capable of multiplexing up to 4 commons and 32 segments (128 segments total in 1:32 mux mode), making it a single-chip solution for low-power human-machine interface designs. A microcontroller (MCU) is a single-chip computer containing a CPU, program and data memory, I/O peripherals, and often specialized interfaces such as LCD controllers, ADC, or communications. The PIC16C9xx family belongs to Microchip's PIC16 mid-range 8-bit RISC architecture, which executes one instruction per instruction cycle (4 oscillator cycles) and exposes only 35 single-word instructions. MCUs sit one level below the broader category of microprocessors in the system-on-chip hierarchy: LDO -> power management IC -> microcontroller -> embedded system -> end product. The PIC16C923 in particular is positioned at the top of the PIC16C LCD-driver family for applications that need a higher-segment LCD count without moving to the PIC17 or PIC18 architectures. Key features include a 7 KB EPROM program memory (14-bit instruction word), 192-byte SRAM data memory, 33 general-purpose I/O pins, an integrated LCD driver supporting static through 1:32 multiplex, two 8-bit timer/counters, a watchdog timer with its own on-chip RC oscillator, and a programmable brown-out reset. The device operates across 2.5 V to 6.0 V with a maximum clock of 8 MHz (8 MHz oscillator, 2 MHz instruction rate, 500 ns instruction cycle). All I/O pins are TTL/CMOS-compatible and the part uses an open-drain LCD segment architecture suitable for direct drive of standard 3 V and 5 V LCD glass. Architecturally, the PIC16C923 is built on Microchip's mid-range core with a 14-bit program word and an 8-bit data path. The EPROM-based program memory is windowed for prototype development and one-time-programmable (OTP) in production. The integrated charge-pump and bias-generator free the LCD section from external bias resistors; the designer only needs to supply a low-power LCD-compatible external capacitor network. The brown-out detector and power-on reset provide predictable startup, while the watchdog timer with a dedicated RC oscillator runs independently of the main crystal, so a stalled main clock cannot prevent system recovery. Typical applications include battery-powered thermostats and HVAC controllers, gas and water meters, point-of-sale terminals, handheld instruments with character or graphic LCDs, medical infusion pumps, white-goods user interfaces (washing machines, ovens), automotive interior controls (non-AEC-Q100 use cases), and industrial operator panels. The integrated LCD driver eliminates the need for an external LCD controller, reducing both BOM cost and PCB area. When designing with the PIC16C923, allocate the EPROM budget carefully: 7 KB allows roughly 4000 single-word instructions, which is sufficient for typical mid-range control + LCD tasks but tight for protocol stacks. Use Microchip's MPASM assembler or the MPLAB XC8 C compiler; the `-/L` package suffix denotes the 68-pin PLCC J-lead variant supplied in Tape and Reel. Always include decoupling (100 nF + 10 uF) within 10 mm of VDD/AVDD/VSS, and confirm that the LCD glass segment count does not exceed 32x4 before committing to the BOM. This page synthesizes distributor pricing, drop-in same-package alternatives (Tape & Reel variants and OTP/EPROM speed grades), and practical design notes that complement - rather than duplicate - the Microchip datasheet.

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PIC16C923T-08/PT

PIC16C923T-08/PT - 8-bit CMOS MCU with LCD Driver, 8MHz, TQFP-64 | Microchip

The Microchip Technology PIC16C923T-08/PT is an 8-bit CMOS RISC microcontroller with an integrated LCD driver module, packaged in a 64-pin TQFP (TFQFP). It operates up to 8 MHz with 500 ns instruction execution, integrates 4K x 14 words of OTP/EPROM program memory, 176 x 8 bytes of general-purpose SRAM, and offers 52 digital I/O pins for embedded applications that also require a direct glass LCD interface. The device is part of the PIC16C9XX family of mid-range microcontrollers, distinguished by an on-chip LCD driver that can directly multiplex up to a 4x32-segment display. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, and peripherals such as timers, communication interfaces, and I/O on a single die. The PIC16C923 belongs to the hypernym hierarchy: 8-bit microcontroller -> RISC microcontroller -> CMOS microcontroller -> embedded controller -> semiconductor. Its mid-range PIC architecture with 35 single-word instructions makes assembly programming compact and predictable, while C compilers from Microchip (MPLAB XC8) target the same core for higher-level development. Key features include 4K x 14 EPROM/OTP program memory, 176 bytes of data RAM, 52 I/O pins, an integrated LCD driver supporting up to 4 common and 32 segment lines, an 8-bit timer/counter with 8-bit prescaler, a Watchdog Timer with its own on-chip RC oscillator, and three I/O ports (PORTA, PORTB, PORTC, PORTD, PORTE) multiplexed with LCD segment and common signals. The part operates from 4.5 V to 6.0 V and supports commercial temperature grades. Architecturally, the PIC16C923 uses a Harvard-style 14-bit instruction word with separate program and data buses, an 8-level deep hardware stack, and direct/indirect addressing modes. The LCD module shares pins with PORTC/PORTD/PORTE, allowing the same IC to drive character or segment displays without an external LCD controller. CMOS EPROM process technology enables low power operation with all instructions executing in a single 500 ns cycle (except program branches which take two cycles). Typical applications include industrial control panels with character LCDs, white goods with integrated displays, handheld instrumentation with segment displays, point-of-sale terminals, automotive dashboard segments, and consumer appliances where the LCD driver integration eliminates an external LCD controller and reduces BOM cost. The wide 52-pin I/O count also supports keypad scanning and LED matrix driving. When designing with this part, evaluate OTP versus windowed (UV-erasable) PIC16C923JW variants carefully - the /PT suffix denotes the OTP/EPROM TQFP-64 production package, suitable for low-volume and pre-production builds; high-volume runs should consider migrating to the mask-ROM PIC16CR923 or the Flash-based PIC16F946/LC94x family for lower unit cost. The integrated LCD driver is the primary value proposition - if no display is needed, a smaller, cheaper mid-range PIC such as the PIC16F877A in PLCC-44 is more appropriate. This page synthesizes distributor pricing, drop-in compatible same-family PIC16C9xx alternatives, and practical design notes not aggregated on any single distributor page, providing an engineering decision framework for selecting the right MCU in the LCD-driven mid-range PIC segment.

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PIC16C923T-08I/L

PIC16C923T-08I/L - 8-Bit OTP MCU 7KB 52 I/O 68-PLCC | Microchip

The Microchip Technology PIC16C923T-08I/L is an 8-bit CMOS OTP-based microcontroller in the PIC16C family, offering 7KB of on-chip EPROM program memory, 176 bytes of SRAM, and 52 digital I/O pins. It executes instructions in a 500 ns single-cycle time at an 8 MHz oscillator input, packs the PIC RISC architecture into a 68-pin PLCC (Plastic Leaded Chip Carrier) with J-leads, and is qualified to the industrial temperature range (-40C to +85C). According to distributor data from DigiKey, the device ships in a 68-PLCC (24.23x24.23 mm) J-lead surface-mount package and supports only 35 single-word instructions, all of which execute in a single instruction cycle except program branches. What is a PIC16C 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripheral set around an 8-bit data path. The PIC16C family from Microchip uses a Harvard RISC architecture with separate program and data buses, OTP (One-Time-Programmable) EPROM for code storage, and a small register file with hardware interrupts. Within the broader IC taxonomy it sits under microcontroller -> embedded MCU -> 8-bit MCU -> semiconductor. Compared with Flash-based successors (PIC16F), PIC16C OTP devices offer lower unit cost at high volume but cannot be reprogrammed in-circuit, making them best suited for mature production where firmware is locked. Key features include 4K x 14 bits of EPROM program memory (7 KB), 176 bytes of general-purpose SRAM registers, 52 bidirectional I/O pins, an 8-bit timer/counter with 8-bit prescaler, a Watchdog Timer with its own on-chip RC oscillator, and Power-on Reset / Brown-out Reset / Power-up Timer. The PIC16C923 also includes an LCD driver interface, making it one of the few PIC16C midrange parts with integrated segment-LCD support, and it operates across 2.5 V to 6.0 V VDD with low-power Sleep mode. Typical applications include industrial control panels, segment-LCD human-machine interfaces (HMIs), appliance front-panel controllers, instrumentation front-ends, and embedded automotive subsystems where firmware is fixed at production and cost is paramount. Its 52 I/O and integrated LCD drive simplify BOMs in meter and control applications by removing external LCD driver ICs. When designing with this device, note that OTP EPROM cannot be re-programmed - firmware must be 100% verified before production programming. Use the parallel programming mode for production programming, and confirm the 68-PLCC footprint supports the J-lead land pattern used in your PCB layout.

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PIC16C923T-08I/PT

PIC16C923T-08I/PT - 8-Bit OTP MCU w/ LCD Driver, 8MHz, TQFP-64 | Microchip

The Microchip Technology PIC16C923T-08I/PT is an 8-bit CMOS OTP-based microcontroller with 7KB (4K x 14) of on-chip EPROM program memory, integrated LCD driver hardware, and 8 general-purpose registers (SRAM), delivered in a 64-pin TQFP (PT) package with industrial temperature grade (-40C to +85C). The '08' speed suffix denotes 8 MHz maximum oscillator frequency (200 ns instruction cycle), while the 'I' suffix denotes the industrial temperature range and 'T' denotes tape-and-reel packaging. An 8-bit OTP (One-Time-Programmable) microcontroller is a non-volatile MCU whose program memory is implemented as EPROM and can be written only once after erasure by UV light. It belongs to the broader class of microcontrollers -> embedded processors -> digital ICs. The PIC16C923 specifically targets applications requiring integrated LCD glass driving, eliminating the need for an external LCD controller and reducing both BOM cost and PCB area. Key features of the PIC16C923T-08I/PT include a powerful RISC CPU with only 35 single-word instructions to learn, 500 ns instruction execution time, all single-cycle instructions except for program branches, and 8-level hardware stack. The on-chip LCD driver supports multiplexed LCD panels up to 4 common lines, while the integrated peripherals include a 5-channel 8-bit A/D converter, USART, SSP, and capture/compare/PWM modules. The PIC16C923T-08I/PT leverages CMOS EPROM process technology, giving it low power consumption characteristic of CMOS logic combined with field-programmable (one-shot) non-volatile memory. The architecture is optimized for applications where the program code is finalized during prototyping and small-to-medium production runs - the EPROM cannot be electrically erased but is reliable in the field once programmed and windowless-packaged. Typical applications include consumer appliances (washing machines, microwave ovens, climate control panels), industrial HMI panels, instrumentation with LCD readouts, point-of-sale terminals, and any battery-powered or line-powered product requiring integrated alphanumeric or segmented LCD glass driving. The combination of LCD driver, ADC, and USART in a single chip reduces external component count. When designing with this device, note that the OTP memory cannot be re-programmed - prototypes should use the JW windowed ceramic variant for development and the PT plastic TQFP for production. Adequate decoupling (100 nF ceramic plus 10 uF bulk) near VDD/AVDD/VSS pins is required for ADC accuracy, and the LCD bias generation must use the recommended external resistor ladder per the datasheet. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, enabling faster BOM decisions.

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PIC16C924-04/L

PIC16C924-04/L - 8-bit OTP MCU 7KB EPROM 8MHz LCD | Microchip

The Microchip Technology PIC16C924-04/L is an 8-bit RISC CMOS microcontroller built around Microchip's PIC architecture, packaged in a 68-pin PLCC (J-Lead, QCCJ) form factor with OTP EPROM program memory. It integrates an integrated LCD driver capable of driving 32 segments and 4 commons, five channels of 8-bit Analog-to-Digital converters, and a synchronous serial port configurable as 3-wire SPI or 2-wire I²C, all on a single die. The core runs at up to 4 MHz instruction frequency (200 ns instruction cycle) and operates from a 4V to 6V supply. An 8-bit microcontroller (MCU) is a small computer-on-a-chip combining a CPU, RAM, non-volatile program memory, and peripherals. The PIC family, a Harvard-architecture RISC design, sits within the broader hierarchy: MCU → microcontroller → embedded processor → semiconductor. OTP EPROM-based PIC16C parts are one-time-programmable and targeted at mature, cost-sensitive embedded products where code is finalized in production. Key features include 7 KB (4K × 14) of OTP EPROM program memory, 192 bytes of SRAM data memory, 52 digital I/O lines, a 5-channel 8-bit ADC, an LCD driver with 32 segments and 4 commons, a Pulse-Width-Modulation (PWM) module, a Watchdog Timer (WDT), Power-On Reset (POR), and brown-out detection. The synchronous serial port supports both SPI and I²C master/slave modes. The instruction set is only 35 single-word instructions, all single-cycle except branch instructions. The PIC16C924-04/L uses a high-performance RISC engine with a 14-bit instruction word, an 8-level hardware stack, and direct/indirect addressing modes. The external oscillator interface supports XT, HS, and RC modes for the /04 speed grade. Power management includes POR, brown-out reset, and a Watchdog Timer with its own on-chip RC oscillator for reliable operation. Typical applications include LCD-based human-machine interfaces, appliance control panels, industrial meters, automotive instrument clusters, and embedded control boards with text/graphical displays. The integrated LCD driver eliminates the need for an external segment driver in cost-sensitive designs, while the 5-channel ADC supports sensor monitoring. When designing with this part, note that the OTP memory means firmware must be finalized before production programming - field upgrades require a windowed (JW) package variant. For prototype work, Microchip recommends the PIC16F924 Flash-based equivalent.

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PIC16C924-04/PT

PIC16C924-04/PT - 8-bit 4MHz 7KB OTP MCU w/ LCD Driver | Microchip

The Microchip Technology PIC16C924-04/PT is an 8-bit CMOS RISC microcontroller with an integrated LCD driver, 7KB (4K x 14) of one-time-programmable (OTP) program memory, 176 bytes of SRAM, and 52 I/O pins, packaged in a 64-pin TQFP (10x10 mm) surface-mount form factor. The "04" speed grade runs at 4 MHz clock input (200 ns instruction cycle at 5V), with the PIC16C924 family offering 5 channels of 8-bit ADC, a synchronous serial port configurable as either SPI or I2C, and an LCD driver module capable of driving 32 segments and 4 commons (up to 128-pixel LCD panel). What is an OTP microcontroller? An OTP (One-Time-Programmable) microcontroller is a type of embedded controller whose on-chip program memory can be written exactly once after manufacture using a programming voltage, with the bit cells constructed as anti-fuse EPROM (rather than EEPROM or Flash). In the broader taxonomy, the PIC16C924 sits below EPROM-based OTP MCUs -> 8-bit microcontrollers -> microcontrollers (MCU) -> embedded controllers -> integrated circuits (ICs). The "C" suffix indicates the original CMOS/EPROM PIC16 family introduced in the early-to-mid 1990s. Key features include 35 single-word instructions (all single-cycle except branches), an 8-level deep hardware stack, four interrupt sources, two 8-bit timer/counters with prescalers, a 16-bit timer/counter, a Watchdog Timer with its own on-chip RC oscillator, and brown-out reset / power-on reset / power-up timer supervisory functions. The synchronous serial port (SSP) supports SPI (Master/Slave) and I2C (Slave) modes, easing sensor and peripheral interconnect. The LCD module supports static, 1/2, 1/3, and 1/4 duty multiplex and can source the LCD bias voltage internally. The architecture uses a Harvard design with separate program and data buses, an ALU that operates on any working register, and a 14-bit program word width - a hallmark of the mid-range PIC16 family. Power consumption is low for the era (typical supply current 1.6 mA at 4 MHz / 5V), with the device operating across 2.5V-5.5V. At 4 MHz "04" speed grade the part delivers 5 MIPS; higher "10" and "20" speed grades deliver 10 and 20 MHz respectively but share the same die and pinout. Typical applications include appliance control panels with LCD readouts, industrial instrument front panels, automotive dashboard clusters (with appropriate EMI hardening), battery charger user interfaces, HVAC thermostat displays, and consumer electronics that need a segmented LCD without a dedicated LCD controller IC. Design consideration: OTP memory is one-time programmable - firmware must be fully validated on the F1 (UV-erasable) windowed variant PIC16C924/JW or on the PIC16C924-04/P (PDIP emulator) before committing to the /PT OTP version, otherwise no firmware revisions are possible. Carefully budget the 176-byte SRAM against stack depth and buffer use, as the modest RAM is the typical bottleneck. This page synthesizes distributor pricing, drop-in alternatives (PIC16C924T-04/PT, PIC16C924-04I/PT, PIC16F914-I/PT), and practical design notes not found in the manufacturer datasheet alone.

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PIC16C924-04I/L

PIC16C924-04I/L - 8-bit CMOS MCU with LCD Driver, 4MHz | Microchip

The Microchip PIC16C924-04I/L is a high-performance 8-bit CMOS microcontroller with an integrated LCD driver, supplied in a 68-pin PLCC (L) package, 176 bytes of SRAM, 4K x 14-bit EPROM program memory, and 52 digital I/O lines. It executes a 14-bit instruction set at 4 MHz (200 ns instruction cycle when sourced from the 20 MHz oscillator divided by 4) and operates from a 4.5 V to 6 V supply. What is an 8-bit microcontroller with LCD driver? An 8-bit MCU with integrated LCD driver is a single-chip computer that combines a CPU, non-volatile program memory, RAM, peripherals, and a segment/common LCD controller on one die, eliminating the need for an external LCD driver IC in segment-display products. Within the broader taxonomy, the PIC16C924 belongs to the PIC16C series of OTP/EPROM-based microcontrollers, which is itself a sub-family of Microchip's PIC16 mid-range architecture, which is itself a sub-family of 8-bit Harvard-architecture microcontrollers, which fall under the category of microcontrollers (MCUs), which are a class of embedded computing semiconductor. Key features include an integrated LCD driver capable of 32 segments x 4 commons (128 segments total), a 5-channel 8-bit ADC, an SSP configurable as 3-wire SPI or 2-wire I2C, two 8-bit timers plus one 16-bit timer, a Watchdog Timer with its own on-chip RC oscillator, Power-On Reset, Brown-Out Reset, Power-Saving Sleep mode, and In-Circuit Serial Programming via two pins. The 35-instruction RISC core executes all single-cycle instructions in 500 ns (at 8 MHz oscillator) except program branches which take two cycles, and the device supports up to 8 MHz clock input. Architecturally, the PIC16C924 uses a Harvard-class RISC core with separate program (14-bit wide EPROM) and data (8-bit wide SRAM) buses, plus an 8-level deep hardware stack, allowing deterministic interrupt latency. The on-chip LCD waveform generator handles static, 1/2, 1/3, and 1/4 multiplexed glass with type-A and type-B waveforms, freeing the CPU from refresh overhead. Industrial (-40C to +85C) operating range and CMOS low-power design (typical <2 mA active, <20 uA standby) suit battery and line-powered instrument panels. Typical applications include appliance control panels (washing machines, microwaves, HVAC thermostats), instrumentation meters (multimeters, panel gauges), medical device displays (glucose meters, infusion pumps), point-of-sale terminals, and industrial operator interfaces requiring alphanumeric segment LCDs. Design tip: EPROM devices require a quartz windowed package or one-time-programmed (OTP) plastic package. For prototyping, prefer the JW windowed variant; for production, the L (PLCC) plastic OTP variant is recommended. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the original Microchip datasheet.

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PIC16C924-08/L

PIC16C924-08/L - 8-Bit MCU w/ LCD Driver, 7KB OTP, 68-PLCC | Microchip

The Microchip Technology PIC16C924-08/L is an 8-bit CMOS microcontroller with an integrated LCD driver, 7KB (4K x 14) of one-time-programmable (OTP) program memory, 176 bytes of SRAM, and 52 digital I/O pins, housed in a 68-pin PLCC (J-Lead) package. It executes instructions in a 500 ns instruction cycle at 8 MHz and is part of the PIC16C9xx family of LCD-driven microcontrollers. The part suffix "/L" indicates the windowless ceramic PLCC package variant rated for industrial temperature ranges. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, RAM, and configurable I/O peripherals. The PIC16C924 sits in Microchip's PIC16 mid-range family, an 8-bit RISC architecture known for its small instruction set (only 35 single-word instructions) and deterministic timing. Adding an on-chip LCD driver makes this part a category-defining solution for embedded human-machine interfaces, eliminating the need for an external LCD controller chip and reducing BOM cost and PCB area. Key features include five channels of 8-bit Analog-to-Digital conversion (ADC), a Synchronous Serial Port configurable as either 3-wire SPI or 2-wire I2C, an integrated LCD driver capable of driving 32 segments with 4 commons (up to 128 pixel control), and capture/compare/PWM peripherals. The CMOS process provides low power consumption and high noise immunity, while the 14-bit instruction word delivers compact code density. The OTP program memory is one-time-programmable, suiting production runs where firmware is finalized and cost per unit is critical. Typical applications include industrial control panels, point-of-sale terminals, medical instrumentation with graphical readouts, automotive dashboard clusters, appliance user interfaces, and metering equipment. The 52 I/O pins and 8-bit ADC simplify sensor aggregation, while the integrated LCD driver removes the need for an external controller. When designing with the PIC16C924, ensure that OTP programming is performed before final assembly (windowless PLCC cannot be UV-erased). Confirm timing budgets against the 8 MHz oscillator and the 500 ns instruction cycle, and verify the LCD bias and contrast network against the panel datasheet. This page synthesizes distributor pricing, drop-in alternatives in the same 68-PLCC footprint, and practical design notes not found in the manufacturer datasheet.

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PIC16C924-08/PT

PIC16C924-08/PT - 8MHz 8-Bit MCU w/ LCD Driver | Microchip

The Microchip Technology PIC16C924-08/PT is a member of the PIC16C9xx family of 8-bit CMOS OTP-based microcontrollers featuring an integrated LCD driver, 5 channels of 8-bit A/D conversion, and 52 digital I/O lines. The device executes instructions in a 200 ns single-cycle period at 8 MHz oscillator frequency, packs 7 KB (4K x 14) of one-time-programmable program memory and 176 bytes of general-purpose SRAM, and is delivered in a 64-pin TQFP (10x10 mm) package. The integrated LCD controller can drive up to 32 segments and 4 commons, allowing direct glass attachment for alphanumeric or custom-segment displays without external driver ICs. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, working RAM, and a mix of peripheral blocks such as timers, A/D converters, communication interfaces, and I/O. The PIC16C9xx family belongs to the 8-bit PIC16C sub-family, which sits within the larger PICmicro architecture hierarchy: 8-bit MCU -> RISC microcontroller -> embedded controller -> semiconductor IC. The "C" suffix indicates an OTP (One-Time-Programmable) EPROM-based program memory variant intended for low-to-medium volume production where field re-programmability is not required. Key features of the PIC16C924 include the integrated LCD driver (32 segments x 4 commons), a 5-channel 8-bit successive-approximation ADC with input multiplexing, a synchronous serial port configurable as 3-wire SPI or 2-wire I2C, a USART for asynchronous/synchronous communication, two 8-bit timers plus one 16-bit timer with capture/compare/PWM capability, and a programmable watchdog timer with its own on-chip RC oscillator. The device supports up to 52 digital I/O pins, accommodates a wide commercial operating temperature range, and operates from a single 3.0 V to 6.0 V supply. Architecturally, the PIC16C924 uses Microchip's Harvard RISC core with separate program and data buses, a 14-bit-wide instruction word, and a hardware multiply assist. The LCD driver uses an internal charge pump and dedicated segment/commons pins with software-configurable frame frequency and bias, reducing external component count. The OTP program memory allows prototype-to-production migration on the same silicon, which simplifies BOM and qualification for low-volume industrial and consumer appliances. Typical applications include industrial control panels with segment LCDs, white-goods and home-appliance user interfaces, HVAC thermostats and metering front-panels, medical device front-end displays, automotive dashboard clusters (non-safety), POS terminals with integrated numeric keypads, and instrument-cluster readouts. The 52 I/O lines make the part suitable for keypad scanning, LED driving, and discrete control outputs alongside the LCD glass. Designers should note the part operates at 8 MHz maximum oscillator and runs each instruction in 4 oscillator cycles (200 ns at 8 MHz). Power-on reset, brown-out detect, and a watchdog timer with dedicated RC oscillator are integrated. Use decoupling capacitors of 0.1 uF near each VDD/VSS pair, route the analog AVdd/AVss pair separately, and follow Microchip's recommended PCB layout for LCD bias generation to minimize segment flicker. This page synthesizes distributor pricing across six major channels, drop-in alternative SKUs from Microchip's own PIC16C9xx family, and practical design notes not duplicated on any single manufacturer or distributor listing.

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PIC16C924-08I/L

PIC16C924-08I/L - 8-Bit OTP MCU w/ LCD Driver | 8MHz | 68-PLCC

The Microchip PIC16C924-08I/L is an 8-bit RISC CMOS microcontroller with an integrated LCD driver, 7 KB of OTP program memory, 176 bytes of SRAM, and 52 digital I/O pins, housed in a 68-pin PLCC (JEDEC LCC) package. It executes 35 single-word instructions at an 8 MHz clock rate, achieving a 500 ns instruction cycle for branch operations, while most instructions complete in a single 4-clock cycle. The industrial-grade "-I" suffix supports an operating temperature range of -40C to +85C. A microcontroller (MCU) is a single-chip computer containing a CPU, RAM, non-volatile program memory, and peripheral interfaces. The PIC16C924 family belongs to the PIC16C9xx mid-range lineup, which extends the standard PIC16 architecture with built-in LCD segment drivers targeting low-power human-machine interface (HMI) products such as metering, instrumentation, and appliance panels. This places the part in the broader taxonomy of microcontroller -> embedded controller -> semiconductor -> integrated circuit. Key features include 4.5 V to 6.0 V supply range, 8 MHz maximum oscillator frequency, 52 I/O pins, 4 KB (7 KB on extended parts) of OTP/EPROM program memory, a 7-channel 8-bit ADC, and an LCD driver capable of multiplexing up to 128 segments. Peripherals include one 8-bit timer, one 16-bit timer, a Watchdog Timer with its own on-chip RC oscillator, and a synchronous serial port (SSP) supporting SPI and I2C. The device uses 13-bit instructions and Harvard architecture with separate program and data buses. Typical applications include smart thermostats, utility meters, medical instrumentation, point-of-sale terminals, and consumer appliance front panels. The on-chip LCD driver removes the need for an external LCD controller, reducing BOM cost and PCB area in segments where 32 to 128 segments must be driven. Designers should note that PIC16C924 is OTP/UV-erasable and is increasingly being replaced by flash-based PIC16F equivalents for new designs. Engineers should evaluate PIC16F946 or PIC16F917 when prototyping new LCD-based products, while keeping PIC16C924 for maintenance of installed bases and legacy firmware. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not aggregated on a single manufacturer datasheet.

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PIC16C924-08I/PT

PIC16C924-08I/PT - 8-Bit 8MHz OTP MCU w/ LCD Driver | Microchip

The Microchip Technology PIC16C924-08I/PT is an 8-bit CMOS microcontroller with an integrated LCD driver module, delivering 8 MIPS performance at 8 MHz clock in a 64-pin TQFP (10x10 mm) package. The device integrates 7 KB of OTP program memory (4K x 14 words) and 176 bytes of general-purpose SRAM, with 52 digital I/O pins and five 8-bit ADC channels for mixed-signal embedded applications. An 8-bit microcontroller is a single-chip computer based on a CPU datapath of 8 bits, executing one byte per instruction cycle. In the broader taxonomy, it sits under microprocessor -> microcontroller -> embedded controller -> semiconductor IC, and is widely used in cost-sensitive applications where deterministic real-time response and low power are more important than raw compute throughput. The PIC16CXXX mid-range family used in PIC16C924 provides a RISC instruction set of only 35 single-word instructions, allowing most routines to fit in a single instruction cycle (500 ns at 8 MHz). Key features include the on-chip LCD driver capable of driving 32 segments and 4 commons (up to 128 segment pixels), a synchronous serial port configurable as 3-wire SPI or 2-wire I2C, and 5 channels of 8-bit A/D conversion. Two 8-bit timer/counters plus one 16-bit timer/counter provide flexible event timing, and a watchdog timer with on-chip RC oscillator improves system reliability. The -08 speed grade specifies an 8 MHz maximum oscillator, while the -I industrial suffix guarantees -40C to +85C operation. Architecturally, the PIC16C924 uses a Harvard-style modified RISC core with separate program and data buses, a 14-bit instruction word, and a hardware multiplier not present. Its 64-pin TQFP package exposes 52 I/O pins arranged as 6 ports (PORTA through PORTG, partially populated), allowing direct interface with LCD glass, keypads, and analog sensors without external glue logic. Typical applications include industrial LCD-display control panels, instrumentation front-ends, point-of-sale terminals, smart thermostats, white-goods control boards, and medical monitors with integrated displays. The combination of LCD driver, ADC, and ample I/O on a single die makes it ideal for human-machine interface (HMI) subsystems. When designing with this part, plan for OTP programming: the OTP memory cannot be erased electrically, so firmware must be fully validated before committing. Decouple VDD/VSS pairs close to the package, use guard traces around the LCD segment outputs to reduce ghosting, and ensure segment-pin assignments follow the datasheet table to minimize software overhead. This page synthesizes live distributor pricing, parametric drop-in alternatives, and practical PCB design notes that go beyond the manufacturer datasheet.

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PIC16C924/CL

PIC16C924/CL - 8MHz 8-Bit MCU w/ LCD Driver | 68-CLCC | Microchip

The Microchip Technology PIC16C924/CL is an 8-bit CMOS OTP-based microcontroller in the PIC16C family, integrating an LCD driver module capable of driving 32 segments and 4 commons, alongside 5 channels of 8-bit Analog-to-Digital converters. It executes instructions in 500 nanoseconds at 8MHz and is offered in a 68-pin Ceramic Leaded Chip Carrier (CLCC) windowed package (24.13 × 24.13 mm) for UV-erasable development and prototyping. A microcontroller (MCU) is a single-chip computer containing a CPU, program memory (ROM/EPROM/Flash), data memory (RAM), and integrated peripherals such as timers, communication interfaces, and ADCs. The PIC16C924/CL belongs to the Mid-Range 8-bit PIC architecture hierarchy: 8-bit MCU -> PIC16 family -> PIC16C sub-family -> microcontroller -> embedded system IC. Its on-chip EPROM (7KB / 4K × 14) makes it suited for one-time-programmable commercial applications where in-system reprogrammability is not required. Key features include 176 bytes of general-purpose RAM, 25 general-purpose digital I/O pins, an integrated LCD driver, a 5-channel 8-bit ADC, and a synchronous serial port configurable as 3-wire SPI or 2-wire I2C. The 8MHz internal oscillator and 35 single-word instruction RISC core reduce code development time, while the windowed ceramic package supports UV erasure for iterative firmware development. Architecturally, the PIC16C924 uses a Harvard-style RISC pipeline with a 14-bit instruction word, enabling single-cycle execution of most instructions except branches. The integrated LCD driver with 32 segment and 4 common outputs supports up to 128-pixel LCD panels without external charge-pump circuitry, reducing BOM cost in human-machine interface designs. The 5-channel 8-bit ADC provides sensor interface capability for temperature, voltage, and process-variable monitoring. Typical applications include industrial control panels with LCD displays, electronic metering (electric/gas/water meters), medical instrumentation with LCD readouts, point-of-sale terminals, consumer appliances with segment displays, and HVAC thermostat controllers. The combination of LCD driver, ADC, and serial interface makes the PIC16C924 particularly suitable for battery-powered metering equipment. When designing with this device, note that the /CL suffix designates the Ceramic Leaded Chip Carrier with UV-transparent window - suitable for development but more expensive than plastic OTP packages. Ensure 5V (±10%) supply tolerance, place decoupling capacitors within 5mm of VDD pins, and use the MCLR pin reset circuit with the recommended 10kΩ pull-up for reliable operation. This page synthesizes distributor pricing from DigiKey, Mouser, and Hotenda, parametric comparison with drop-in alternatives in the same 68-CLCC footprint, and practical design notes covering EPROM programming, LCD bias generation, and ADC acquisition timing not explicitly listed on standard distributor product pages.

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PIC16C924T-04/PT

PIC16C924T-04/PT - 8-Bit 4MHz LCD MCU 7KB OTP | Microchip

The Microchip Technology PIC16C924T-04/PT is an 8-bit CMOS microcontroller from the PIC16C family featuring an integrated LCD driver, 7KB of One-Time-Programmable (OTP) program memory (4K x 14 words), 176 bytes of RAM, and 52 digital I/O pins. The device operates at 4 MHz from a 5V supply and is housed in a 64-pin TQFP (10x10 mm) surface-mount package. The "T" suffix in the part number indicates tape-and-reel packaging, while "/PT" denotes the TQFP package code. A PIC microcontroller (Programmable Intelligent Computer) is a Harvard-architecture RISC-based 8-bit MCU widely used in embedded control. The PIC16C family specifically targets applications requiring OTP programmability, ROM-less flexibility, or ceramic-windowed erasable variants for prototyping. The PIC16C924 belongs to the LCD-driver subset, integrating a built-in LCD controller that simplifies the design of battery-powered human-machine interface products. As an 8-bit MCU it sits within the broader hierarchy of microcontroller -> embedded controller -> semiconductor device. Key features include a built-in LCD driver supporting up to 32 segments x 4 commons (128 segments total), a 5-channel 8-bit analog-to-digital converter, two 8-bit timers plus one 16-bit timer, a synchronous serial port (SSP) supporting SPI and I2C, and an asynchronous serial port (USART/SCI). The PIC16C924 also includes a watchdog timer, brown-out reset, and power-saving SLEEP mode. Operating voltage ranges from 4.0V to 6.0V with industrial temperature grades available. Architecturally, the PIC16C924 uses a 14-bit instruction word with an 8-bit data path, providing 35 single-cycle instructions at 4 MHz (250 ns instruction cycle). The integrated LCD controller supports static, 1/2, 1/3, and 1/4 multiplex modes with selectable bias and frame frequency, eliminating the need for an external LCD driver IC. The device's CMOS process delivers low power consumption suitable for portable applications. Typical applications include battery-powered metering (gas, water, electric), portable medical instruments (blood glucose meters, thermometers), consumer appliances with LCD panels (microwave ovens, washing machines), industrial control panels with segment displays, and automotive dashboard segments where aftermarket gauges are needed. The integrated LCD driver reduces BOM cost and PCB footprint in these segment-LCD applications. When designing with this device, note that OTP memory is one-time programmable - code cannot be field-updated. For development, use the PIC16C924 with a JW (windowed) package or a Flash-based equivalent such as the PIC16F946. Ensure segment-LCD bias resistors are correctly calculated for the chosen LCD multiplex rate, and add a decoupling capacitor (0.1 uF) close to VDD. This page synthesizes distributor stock data, parametric drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet alone.

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PIC16C924T-04I/L

PIC16C924T-04I/L - 8-Bit 4MHz OTP MCU with LCD Driver, 68-PLCC | Microchip

The Microchip Technology PIC16C924T-04I/L is an 8-bit CMOS RISC microcontroller with integrated LCD driver, delivered in a 68-pin PLCC (J-Lead) package. It runs at 4 MHz, integrates 7 KB of OTP program memory (4K x 14), 176 bytes of RAM, and 52 digital I/O lines for direct sensor and peripheral interfacing. Tape-and-reel packaging variant designed for high-volume SMT assembly. What is an 8-bit OTP microcontroller? An 8-bit OTP (One-Time Programmable) MCU is a microcontroller whose program memory can be written only once after manufacture, making it cost-optimized for high-volume, fixed-code applications where firmware revision is unnecessary. OTP MCUs sit inside the broader 8-bit microcontroller hierarchy, alongside Flash- and ROM-based variants, and are widely used in consumer appliances, industrial controllers, metering, and display-driven human-machine interface (HMI) products. The LCD driver integration makes PIC16C924 particularly suited to systems where alphanumeric segment displays are required without external driver ICs. Key features include an 8-level hardware stack, 14-bit instruction word, Harvard architecture with separate program and data buses, on-chip LCD driver supporting up to 64 segments, 52 I/O pins, and an industrial operating temperature range of -40C to +85C. The 68-pin PLCC package supports through-hole or socket mounting, easing prototype rework and field replacement in legacy designs. The /L suffix indicates the PLCC package, while 'T' denotes tape and reel orientation, and '04I' identifies the 4 MHz industrial-temperature grade. Typical applications include industrial control panels, alphanumeric segment-LCD consumer appliances, point-of-sale terminals, instrumentation front panels, medical device displays, and automotive dashboard clusters. The integrated LCD driver eliminates the need for an external segment driver, reducing BOM cost and PCB area. When designing with this part, note that OTP memory cannot be reprogrammed in-circuit. For prototype development, consider the PIC16F926 equivalent or the PIC16C924 windowed JW variant, then transition to PIC16C924T-04I/L for production. Always verify maximum supply voltage (5.5 V) and oscillator configuration in the manufacturer datasheet. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Data sources include DigiKey, Microchip, Heisener, and MicrochipUSA.

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PIC16C924T-08/L

PIC16C924T-08/L - 8MHz 8-bit LCD MCU 7KB OTP 68-PLCC | Microchip

The Microchip PIC16C924T-08/L is an 8-bit CMOS RISC microcontroller with an integrated LCD driver, featuring 7KB (4K x 14) of One-Time Programmable (OTP) program memory and 176 bytes of SRAM, housed in a 68-pin PLCC package (24.23 x 24.23 mm). It executes at up to 8MHz with 500 ns single-cycle instruction time across only 35 single-word instructions, and integrates a 5-channel 8-bit analog-to-digital converter plus I2C and SPI connectivity. An LCD microcontroller is a specialized variant of an 8-bit MCU that adds on-chip segment drivers, charge-pump voltage generation, and bias network control to directly drive glass displays. Within the broader hierarchy it sits at: LCD MCU -> 8-bit microcontroller -> embedded microcontroller -> integrated circuit -> semiconductor. The integrated LCD subsystem eliminates the need for an external display controller, reducing BOM cost and PCB area in products that must show numeric or alphanumeric information without a graphical panel. Key features include 4K x 14 OTP program memory (7KB), 176 bytes of data RAM, 8 general-purpose registers, an integrated 5-channel 8-bit ADC, I2C and SPI serial interfaces, and a wide operating voltage range suited to battery-powered designs. The OTP memory is a one-time-programmable EPROM variant, distinguishing this family from the flash-based PIC16F9xx series. The 68-PLCC package provides easy through-hole assembly and socket compatibility for legacy industrial designs. The PIC16C924T-08/L uses Microchip's classic PIC16C RISC architecture, an enhanced Harvard design with separate program and data buses that allow instruction fetch and operand read in a single 500 ns cycle. The integrated LCD module supports common static, 1/2, 1/3, and 1/4 multiplex configurations and includes its own bias-generation resistor ladder, simplifying software-driven display updates while keeping the core CPU free for application logic. Typical applications include industrial control panels with character LCDs, appliance user interfaces, instrumentation front panels, point-of-sale terminals, and battery-powered metering devices. The combination of low-cost OTP memory and a built-in segment driver suits high-volume consumer and industrial products that have a fixed firmware image. When designing with this part, note that OTP memory cannot be reprogrammed in-circuit, so plan for prototype validation on a windowed (JW) package or a flash-based sibling such as PIC16F914 before committing to OTP volume units. Verify the maximum oscillator speed and ADC acquisition timing against your application to ensure adequate timing margin. This page synthesizes distributor pricing, drop-in alternatives drawn from the same PIC16C9xx family, and practical design notes that go beyond what is in the bare Microchip datasheet.

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