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MC68HC908QT1CPE - 8-Bit HC08 MCU, 1.5KB Flash, 8MHz | NXP
MC68HC908QT1CPE

MC68HC908QT1CPE - 8-Bit HC08 MCU, 1.5KB Flash, 8MHz | NXP

The NXP MC68HC908QT1CPE is a low-cost, high-performance 8-bit microcontroller from the M68HC08 Family housed in an 8-pin PDIP (PE) package. It integrates an enhanced CPU08 core with 1.5 KB of on-chip FLASH program memory, 128 B of RAM, and is offered as the no-ADC variant of the HC08QT1 sub-family, targeting simple cost-sensitive control tasks. A microcontroller (MCU) is a single-chip computer that combines a CPU core, program and data memory, peripherals, and I/O on one die. Within the broader taxonomy, the HC08QT1 is an 8-bit CISC MCU -> member of the HC08 family -> Freescale/NXP M68K lineage -> embedded microcontroller -> semiconductor IC. The HC08QT1 occupies the low-cost, low-pin-count node of the HC08Q tree, providing FLASH in-system programmability without an integrated analog-to-digital converter. Key features include a 16 MHz maximum internal bus frequency (8 MHz typical application operation), a 4.5 V to 5.5 V single-supply operating range, on-chip FLASH with security, a 16-bit timer, an analog comparator, and a low-power STOP/WAIT mode. The Von Neumann architecture simplifies tool chains because program and data share a single address space, and the CISC instruction set reduces code size for bit-heavy control routines. The architecture is built around the enhanced CPU08 core running from an internal bus, with FLASH used for both program storage and in-application reprogramming via the on-chip monitor ROM. The 8-pin PDIP package exposes six general-purpose I/O lines, the OSC1/OSC2 clock pins, and VDD/VSS, enabling two-layer board layouts and breadboard-friendly prototypes without requiring fine-pitch surface-mount assembly. Typical applications include low-cost consumer appliances, white-goods control boards, simple motor drivers, lighting controllers, and legacy industrial timers. The device is also used in educational platforms that still target the HC08 instruction set for assembly teaching labs. A key design consideration is supply-rail decoupling: place a 100 nF ceramic capacitor as close as possible to the VDD pin, since the internal bus draws peak current during FLASH erase cycles. For EMI-sensitive designs, route the oscillator traces with a guard ring and keep them short to minimize radiated noise. This page synthesizes distributor pricing, drop-in FLASH-programmable drop-in alternatives from the same HC08Q family, and practical design notes not found in the manufacturer datasheet.

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MC68HC908QT1MP - 8-Bit 8MHz 1.5KB Flash MCU | NXP
MC68HC908QT1MP

MC68HC908QT1MP - 8-Bit 8MHz 1.5KB Flash MCU | NXP

NXP Semiconductors MC68HC908QT1MP is an 8-bit M68HC08 microcontroller with 1.5 KB flash memory, 64-byte RAM, 8 MHz operation, low-voltage detection, and an 8-pin package for basic embedded control applications. Its compact memory footprint and Von Neumann CISC architecture suit small control nodes, appliance interfaces, and simple sequential logic. A microcontroller is a programmable semiconductor that integrates a CPU, memory, and peripherals on one device. The M68HC08 family belongs to the broader embedded-controller hierarchy and uses the enhanced CPU08 core, a CISC instruction set, and Von Neumann program-memory organization. This architecture favors compact code, straightforward peripheral integration, and deterministic control rather than high-throughput application processing. The MC68HC908QT1MP provides 1.5 KB of flash for program storage, eliminating a separate external program-memory device for small firmware images. Its 64-byte RAM supports variables, stack operations, and short-lived control data. The listed 8 MHz operating speed provides basic task execution capability, while low-voltage detection helps the firmware identify an undervoltage condition before relying on an unreliable supply level. Because the verified product information does not enumerate every peripheral, I/O count, electrical limit, timing range, or converter specification, those details remain unstated rather than inferred. Engineers should confirm the exact pin functions, oscillator requirements, supply limits, programming method, and timing behavior against the manufacturer data sheet before schematic release. Typical uses include basic embedded controllers, small appliance control panels, simple sensor-conditioning nodes, and low-cost systems requiring nonvolatile firmware. The 8-pin package is especially useful when board space is constrained, although the restricted pin count requires careful prioritization of power, programming, clock, control, and signal functions. Design begins by verifying that 1.5 KB is sufficient for the final compiled image and that 64 bytes of RAM accommodates the stack plus all live variables. Avoid adding time-critical communication or high-current I/O tasks unless their required interfaces, timing, and electrical limits are confirmed in the datasheet. This page combines verified NXP product facts, distributor availability information, package-oriented sourcing details, and explicit engineering caveats where the supplied data does not support a specification. It is intended to narrow the decision without presenting unverified electrical or peripheral claims as facts.

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MC68HC908QT1MPE - 8-bit HC08 MCU, 1.5KB Flash, 8-DIP | NXP
MC68HC908QT1MPE

MC68HC908QT1MPE - 8-bit HC08 MCU, 1.5KB Flash, 8-DIP | NXP

The NXP MC68HC908QT1MPE is an 8-bit HC08 microcontroller unit (MCU) with 1.5KB of Flash program memory and 128 bytes of RAM, housed in an 8-pin PDIP (Plastic DIP) through-hole package. An 8-bit microcontroller is a single-chip computer built around an 8-bit data bus and a Von Neumann or Harvard architecture, integrating CPU, RAM, ROM/Flash, and I/O peripherals onto one die. The HC08 family uses a Complex Instruction Set Computer (CISC) Von Neumann architecture, meaning the 8-bit CPU08 core fetches instructions and data over a shared 16-bit address bus. The HC08Q sub-family sits in the hierarchy as: 8-bit MCU -> HC08 family -> HC08Q sub-family -> low-cost, low-pin-count line, and is widely used for cost-sensitive consumer and industrial control where 32-bit ARM Cortex parts would be overkill. Key features of the MC68HC908QT1MPE include 1.5KB (1.5K x 8) of Flash memory, 128 bytes of RAM, an internal 8MHz bus clock with a trimmable internal oscillator, 5 general-purpose I/O pins, on-chip LVD (Low-Voltage Detect) and POR (Power-On Reset), and a PWM module. The part runs from a 2.7V to 5.5V supply (industrial range), is specified for -40C to +85C operation, and uses an HC08 CPU08 core that executes one instruction per 2 to 13 bus cycles. The HC08 architecture combines a small, deterministic 8-bit core with on-chip Flash, a flexible timer/PWM block, and a keyboard interrupt module that is well-suited to sensing and control loops. The QT1 variant strips the ADC for the smallest possible footprint, leaving the 5 bidirectional I/O pins to handle digital I/O, timer capture/compare, and PWM output. Programming is performed through a single-wire background debug mode (BDM) interface that uses two of the device pins, leaving three remaining for application use. Typical applications for the MC68HC908QT1MPE include simple PWM motor control in small appliances, low-cost remote-control transmitters, LED lighting controllers, sensor signal conditioning with digital output, and battery-powered handheld devices. Its tiny 8-pin PDIP footprint and 1.5KB Flash make it a fit where 32-bit MCUs would add unnecessary BOM cost. Designers should note that the 1.5KB Flash limits program size to roughly 1K instructions of HC08 assembly or 600-800 lines of C code. For designs that may grow, the HC08Q family offers pin-compatible parts with 2KB (QT2), 4KB (QT4), and ADC-equipped (QY) variants. The MC68HC908QT1MPE is also marked as End-of-Life on the NXP product page, so new designs should consider the pin-compatible QT2/QT4 family members or move to a modern S08 core.

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MC68HC908QT2CDW - 8-bit HC08 MCU 1.5KB Flash 8MHz SOIC-8 | NXP
MC68HC908QT2CDW

MC68HC908QT2CDW - 8-bit HC08 MCU 1.5KB Flash 8MHz SOIC-8 | NXP

The NXP Semiconductors MC68HC908QT2CDW is a member of the M68HC08 Family of 8-bit microcontroller units (MCUs), featuring a 1.5 KB Flash program memory, 128 B RAM, an 8 MHz internal bus, and an on-chip 10-bit ADC, housed in an 8-pin SOIC EIAJ (DW) package. The device is built on a CISC (Complex Instruction Set Computer) Von Neumann architecture and supports dual supply ranges (3.3 V or 5 V), making it compatible with both 3 V and 5 V system designs. What is an HC08 8-bit microcontroller? An HC08 MCU is a CISC, Von Neumann 8-bit microcontroller family that uses a unified address space for program and data memory, allowing instructions to operate on memory with a single fetch. The HC08 family sits below 16-bit HC12 and 32-bit ColdFire devices in the Freescale/NXP automotive and industrial MCU hierarchy, while sharing the same M68K-derived instruction set lineage. These 8-bit MCUs target cost-sensitive, low-power embedded control applications where deterministic interrupt response and minimal BOM cost are more important than computational throughput. Key features include 1.5 KB of Flash program memory with in-circuit programmability, 128 B of on-chip RAM, an internal 8 MHz oscillator (with optional external crystal), up to 5 channels of 10-bit ADC with 12 us conversion time, a 16-bit timer with input capture/output compare/PWM channels, and a low-power STOP/WAIT architecture. The device also provides a keyboard interrupt module on selected pins and an internal COP watchdog for software-locked operation. The integrated SCI (serial communications interface) and SPI peripherals enable direct connection to sensors and host processors. The HC08 core delivers up to 8 MIPS at 8 MHz and includes a BSET/BCLR bit-manipulation instruction set, a 16-bit index register (H:X), and an integrated hardware breakpoint for debug. The Flash memory supports in-application programming through a ROM-resident monitor, allowing firmware updates in the field without external programmer hardware. The ADC uses a successive-approximation register architecture with sample-and-hold, providing 10-bit monotonic output across the operating temperature range. Typical applications include low-cost sensor interfaces, white-goods and appliance control modules, automotive body electronics (interior lighting, mirror control, wiper controllers), simple motor control (small DC and stepper drivers), battery chargers, IR remote receivers, and any application requiring compact 8-pin SOIC packaging with embedded Flash. The wide operating temperature range and automotive-grade variants make the part suitable for AEC-Q100 qualified designs in body and chassis subsystems. When designing with this device, ensure adequate decoupling by placing a 100 nF ceramic capacitor as close as possible to the VDD pin, with a bulk 10 uF tantalum or ceramic on the supply rail. Use the internal 8 MHz oscillator for cost-sensitive designs, or select an external crystal when USB-class timing accuracy is required. Reset must be held low for at least 32 bus cycles after VDD stabilizes within tolerance. This page synthesizes distributor pricing, drop-in same-package alternatives from the HC08/QY family, and practical design notes that go beyond the manufacturer datasheet to assist procurement and embedded-system engineers.

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MC68HC908QT2CP - 8-bit HC08 MCU, 1.5KB Flash, 8MHz | NXP
MC68HC908QT2CP

MC68HC908QT2CP - 8-bit HC08 MCU, 1.5KB Flash, 8MHz | NXP

The NXP MC68HC908QT2CP is an 8-bit HC08-family microcontroller with 1.5KB of on-chip FLASH program memory, operating at up to 8MHz internal bus frequency, housed in an 8-pin PDIP through-hole package. It integrates 128 bytes of RAM, an 8-bit ADC with multiple channels, a 16-bit timer, and the standard HC08 peripherals on a Von-Neumann CISC architecture optimized for low-cost embedded control. An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, non-volatile program memory (FLASH/ROM), volatile data memory (RAM), and a set of on-chip peripherals (ADC, timers, communication interfaces). The HC08 family uses a CISC, Von Neumann architecture where program and data share a single bus, contrasting with RISC Harvard-architecture cores. MCUs sit inside the broader hierarchy: microcontroller -> embedded processor -> semiconductor -> integrated circuit. Low-pin-count HC08 derivatives like the QY/QT series target cost-sensitive applications where 8-pin or 16-pin packages and minimal BOM are critical design constraints. Key specifications include a 3V to 5.5V supply range, internal 8MHz oscillator, 1.5KB FLASH, 128B RAM, 6-channel 8-bit ADC with 4.5us conversion time, two 16-bit timers, and an SCI (UART) interface. The 8-pin PDIP variant (CP suffix) provides the lowest-cost packaging for through-hole designs and breadboard prototypes, making it ideal for educational and hobbyist use. The part offers typical applications in consumer appliances, simple motor control, sensor conditioning, and replacement of discrete logic with embedded intelligence. Designers should note that the HC908 QT2 is a member of the legacy M68HC08 family which has been superseded by newer S08 and S12 architectures for new designs. For new product development, the Freescale/NXP S08 (S08QE, S08AC) families offer pin-to-pin compatibility in many cases with lower power and better peripherals. Existing designs using the QT2 benefit from mature toolchains (CodeWarrior HC08, ICC08), abundant reference code, and low unit cost. The part's small FLASH and RAM footprint (1.5KB/128B) makes it well-suited to very simple control loops, not for graphics or wireless stacks. Typical applications include low-end consumer IR remote controls, battery chargers, fan controllers, simple sensor interfaces, and educational platforms. Designers should use the HC908 QT-series only when BOM cost dominates and FLASH/RAM needs are minimal. The 8-pin PDIP package simplifies hand-soldering and prototyping but occupies more PCB area than SOIC or TSSOP equivalents.

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MC68HC908QT2MDW - 8-bit 5V 1.5KB Flash MCU, SO-8 | NXP / Freescale
MC68HC908QT2MDW

MC68HC908QT2MDW - 8-bit 5V 1.5KB Flash MCU, SO-8 | NXP / Freescale

The NXP (formerly Freescale) MC68HC908QT2MDW is an 8-bit microcontroller from the M68HC08 family with a Von Neumann CISC architecture, 2KB Flash program memory, 128 bytes of RAM, and an internal bus clock of up to 8 MHz, packaged in an 8-pin (SOP / SOEIAJ) gull-wing outline. According to the M68HC908QT2 family documentation, the QT2 part is the cost-down variant of the QY family and is aimed at applications that require the QT2 set of timers, ADC and I/O rather than the richer QY peripheral mix. A HC08 family microcontroller is a Complex Instruction Set Computer (CISC) 8-bit MCU built on a Von Neumann architecture, in which program and data share a single internal bus. The QT2 sub-family is the lower-pin-count, smaller-memory derivative of the QY family, commonly used as a low-cost replacement for HC05 designs, where the 8-pin footprint, simple timer structure and on-chip analog peripherals are sufficient. Key features of the MC68HC908QT2MDW include 2KB of Flash for application code, 128 bytes of on-chip RAM, an internal 8 MHz bus clock derived from an on-chip trimmable oscillator, an 8-channel 10-bit ADC (per the QY family header from which the QT2 is derived - device-specific channel count for QT2 needs verification), a 16-bit timer with input capture and output compare channels, an internal voltage regulator allowing a wide operating range (3 V to 5 V typical for the family), low-power wait and stop modes, an integrated POR/Brown-out reset, and a built-in COP watchdog. The MDW suffix designates the small-outline SO-8 (SOEIAJ) package and the automotive operating temperature grade. The HC08 core uses a 16-bit stack pointer, hardware index registers (H:X) and a small instruction set with several addressing modes, simplifying code generation in assembly while still allowing efficient C compilation. Internal Flash memory is programmed via the on-chip Monitor ROM or via in-application programming in the application circuit. The part is a member of the cost-optimized HC908QT/QY family that competes against PIC10/12/PIC16F and low-end STM8P/STM32P devices in white-goods, lighting, appliance, simple sensor and remote-control designs. Typical applications for the MC68HC908QT2MDW include low-end automotive body modules (window lift, mirror control, lighting drivers), small white-goods controllers (toasters, coffee machines, fans), battery chargers, LED drivers, simple sensor signal conditioners, infra-red remote receivers, and low-cost consumer electronics where the SO-8 footprint and HC08 toolchain (CodeWarrior, ICS08) provide a known migration path from older HC05 designs. Designers should note that the MC68HC908QT2MDW is in the lower pin-count and lower memory bracket of the QY family; if more memory, more timers or more ADC channels are required, the MC68HC908QY series should be evaluated instead. Programming is performed through the single-wire background debug mode (BDM mode) interface on the IRQ/TCLK pin pair. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond the bare manufacturer datasheet, so an engineer can quickly decide whether the MC68HC908QT2MDW is the right 8-bit MCU for a given SOP-8 board.

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MC68HC908QT2MPE - 8-Bit HC08 MCU 1.5KB Flash 8-PDIP | NXP
MC68HC908QT2MPE

MC68HC908QT2MPE - 8-Bit HC08 MCU 1.5KB Flash 8-PDIP | NXP

The NXP MC68HC908QT2MPE is a low-cost, high-performance 8-bit microcontroller unit (MCU) from the M68HC08 family, featuring a 68HC08 CPU core, 1.5KB of on-chip FLASH program memory, and an 8-pin PDIP through-hole package. It operates at up to 8MHz internal bus frequency using an HCMOS process, and integrates an 8-bit timer, an analog-to-digital converter (ADC) on selected pins, and low-power STOP/WAIT modes for battery-friendly designs. The part is targeted at cost-sensitive embedded control applications where small pin count, deterministic behavior, and legacy HC08 code reuse are required. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals on one die, and 8-bit MCUs like the MC68HC908QT2MPE occupy the low-end of the embedded controller hierarchy: 8-bit CPU -> microcontroller unit (MCU) -> embedded controller -> semiconductor IC. The M68HC08 family is a Complex Instruction Set Computer (CISC) with a Von Neumann architecture, descended from the long-running Motorola 68HC05 line and used as the migration path for legacy 6805/68HC05 designs. 8-bit MCUs remain widely deployed in appliances, toys, simple motor control, and human-interface products where 32-bit processing power is unnecessary. Key specifications of the MC68HC908QT2MPE include 1.5KB (1.5K x 8) of FLASH, 128 bytes of RAM, an 8MHz maximum bus clock, an integrated ADC, and a wide operating voltage range typical of the HC08 Q-Tiny series. The 8-PDIP package provides through-hole mounting suitable for prototyping, hobby projects, educational kits, and legacy board repairs. The device supports in-system FLASH programming via the standard HC08 background debug mode (BDM), simplifying firmware development and field updates. Typical applications include low-cost consumer appliances, white-goods control boards, electronic toys, lighting controllers, small motor drivers, and remote-control units. The 8-PDIP package is especially suited to hobbyist and educational platforms (Arduino-shield style boards, training kits) where hand-soldering or breadboarding is required, and to long-life industrial equipment that needs a stable, multi-sourced 8-bit MCU with predictable supply. When designing with this device, note that newer HC08/HC(S)08 derivatives offer more memory and features in the same footprint; if more RAM, FLASH, or peripherals are required, evaluate the larger Q-Tiny variants before committing to the MC68HC908QT2MPE. Always verify pin assignments against the current NXP datasheet because the Q-Tiny family shares pinouts across many part numbers but specific peripheral assignments vary. This page synthesizes distributor stock, drop-in alternatives, and design notes not found in the manufacturer datasheet.

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MC68HC908QT4CDW - 8-bit HC08 MCU 4KB Flash 8MHz | NXP
MC68HC908QT4CDW

MC68HC908QT4CDW - 8-bit HC08 MCU 4KB Flash 8MHz | NXP

The NXP MC68HC908QT4CDW is an 8-bit HC08 family microcontroller with 4KB of Flash program memory, 128 bytes of RAM, and an integrated 8MHz internal oscillator, housed in an 8-pin SOIC (SO-8, 0.209 inch / 5.30mm width) package. It provides 5 general-purpose I/O lines, supports 5V operation, and is specified for industrial temperature grade applications. An 8-bit microcontroller (MCU) is a compact, self-contained computing element that integrates a CPU, program memory, RAM, peripherals, and I/O into a single chip. The MC68HC908QT4CDW belongs to the HC08 family — a CISC, Von Neumann architecture family of low-cost, high-performance 8-bit microcontrollers. Within the broader taxonomy, this device sits at: microcontroller -> 8-bit MCU -> HC08 family -> QY/QT sub-family -> embedded system component. Key features include on-chip LVD (Low-Voltage Detect) and POR (Power-On Reset) peripherals, PWM output, internal oscillator (eliminating external crystal), and 4KB of in-system programmable Flash. The HC08 core uses an enhanced M68HC08 central processor with a von Neumann architecture. With 5 I/O pins available, the QT4 variant targets space-constrained applications where minimal pin count is essential. Typical applications include low-cost consumer electronics, white goods control, automotive body electronics (non-safety), small appliances, simple sensor interfaces, and cost-sensitive industrial control. The 5V supply range suits traditional 5V system designs while the industrial temperature grade enables harsh-environment deployments. When designing with this part, note that with only 5 I/O pins available, applications must rely heavily on peripheral functions (PWM, timers) and may need I/O expanders if more pins are required. Programming requires a compatible HC08 programmer/debugger interface. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the standalone datasheet.

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MC68HC908QT4CFQ - 8-bit HC08 MCU, 4KB Flash | NXP
MC68HC908QT4CFQ

MC68HC908QT4CFQ - 8-bit HC08 MCU, 4KB Flash | NXP

The NXP (formerly Motorola/Freescale) MC68HC908QT4CFQ is an 8-bit HC08 CISC microcontroller unit (MCU) with 4 KB of on-chip Flash program memory, housed in an 8-pin HVQCCN (QFN with exposed pad) package with EP (4x4 mm) dimensions. It operates from a single supply of 3.3 V or 5 V (the broader family spans 2.7 V to 5.5 V per the family datasheet) and targets cost-sensitive, pin-constrained embedded designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, and I/O peripherals on one silicon die; HC08 denotes the CMOS process generation of the classic Motorola 68HC05/68HC08 family, using a Von Neumann (single bus) CISC architecture with a uniform 16-bit address space shared between program and data. The MC68HC908QT4 belongs to the low-cost, high-performance M68HC08 family and is engineered as a small-footprint member optimized for appliance, sensor-interface, and remote-control use cases where a full QFP package would be wasteful. Key features include 4 KB of Flash program memory with in-system programmability via the standard Motorola monitor mode, 128 bytes of RAM, an internal oscillator that supports an external crystal or resonator, a 16-bit timer with capture/compare, and a multi-channel 8-/10-bit ADC on related QT/QY family devices. The CFQ suffix specifies the industrial temperature range and lead-free terminal finish (Pb-free, no-lead, HVQCCN). The architecture combines a HC08 CPU with a security/breakpoint ROM, a SIM (System Integration Module) for clock, reset, and interrupt control, and a FLASH memory array configured as 4 pages of 1 KB each, with an internal 96-byte monitor ROM (per the family datasheet) reserved for factory test and serial in-application programming. The 68HC908 QT/QY family is software-compatible with the 68HC05 instruction set plus a few added addressing modes. Typical applications include low-end remote controls, small appliance controllers, battery chargers, LED driver controllers, simple sensors and monitoring nodes, and any space-constrained design that needs a genuine general-purpose MCU rather than a specialized fixed-function controller. Designers also use the QT/QY family for product variants where different memory sizes (1 KB, 2 KB, 4 KB) are binned from the same die to simplify supply chain. When laying out a QT-board, route the exposed thermal pad of the QFN-EP to a grounded copper pour, allocate one PCB edge for programming/debug access (the standard QY/QT family uses single-wire background debug mode plus an external IRQ pin), and respect the OSC1/OSC2 routing guidance in the family datasheet. This page synthesizes distributor pricing, same-family NXP and Freescale drop-in alternatives, and practical design notes not found in a single distributor search.

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MC68HC908QT4CP - 8MHz 8-bit HC08 MCU 4KB FLASH 8-PDIP | NXP
MC68HC908QT4CP

MC68HC908QT4CP - 8MHz 8-bit HC08 MCU 4KB FLASH 8-PDIP | NXP

The NXP MC68HC908QT4CP is an 8-bit HC08-family microcontroller running at 8MHz with 4KB FLASH program memory and 128 bytes of RAM in an 8-pin PDIP package. It uses a Von Neumann CISC architecture with the CPU08 core, and provides 5 GPIO lines along with on-chip LVD, POR, PWM and ADC peripherals. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals onto one silicon die. The HC08 family is a low-cost, high-performance extension of the M68HC05 line, implementing a Complex Instruction Set Computer (CISC) with a Von Neumann memory map (a single shared address space for program and data, simplifying pointer-based access). MCUs like the MC68HC908QT4CP occupy the bottom tier of embedded computing - below 32-bit microcontrollers and microprocessors, but above discrete logic - and are used where deterministic I/O control, low power, and small footprint are more important than raw throughput. Key features of the MC68HC908QT4CP include 4KB (4K x 8) of on-chip FLASH for program storage, 128 x 8 bytes of RAM, an internal ADC for sensor interface, a PWM channel for motor or LED control, and a Low-Voltage Detection (LVD) plus Power-On Reset (POR) for robust supply supervision. The 5 general-purpose I/O pins are software-configurable for pull-up, direction, and interrupt-on-edge. The CPU08 core provides 16-bit index register, 16-bit stack pointer, and BCD arithmetic instructions that simplify decimal handling in metering and panel applications. The part operates from a 3V supply (typical 3.0V to 5.5V range per the family datasheet), supports in-circuit programming through the monitor ROM, and uses a FLASH page-erase architecture that allows at least 1000 program/erase cycles. The 8-pin PDIP package is the most user-friendly variant for breadboarding and through-hole hobbyist designs, while a surface-mount SO-8 variant exists in the same family. Typical applications for the MC68HC908QT4CP include low-cost consumer appliances, IR remote-control transmitters, simple motor/LED controllers, white-goods user interfaces, and battery-powered sensor nodes where the small 8-pin footprint and on-chip ADC reduce BOM cost. According to the NXP MC68HC908QY4 family datasheet, the QT/QY sub-family targets cost-sensitive applications that need ADC, PWM, and FLASH in 8- or 16-pin packages. When using this MCU, ensure the supply decoupling is adequate (typically 100nF plus 10uF bulk at VDD/VSS) and that the analog supply (AVDD/AVSS, where present on larger-pin-count siblings) is properly filtered if the ADC is used. FLASH write/erase operations require the supply to remain above the LVD threshold, and the monitor mode entry sequence (PTB3/PTB4 handshake on larger siblings, or PTA0 on this 8-pin device) must be respected when using in-system programming. This page synthesizes distributor pricing, drop-in same-family alternatives (MC68HC908QT2CP, MC68HC908QT1CP), and practical design notes that go beyond the manufacturer datasheet alone.

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MC68HC908QT4CPE-FR - 8-bit HC08 MCU, 4KB Flash, 8-PDIP | NXP
MC68HC908QT4CPE-FR

MC68HC908QT4CPE-FR - 8-bit HC08 MCU, 4KB Flash, 8-PDIP | NXP

The NXP (Motorola/Freescale) MC68HC908QT4CPE-FR is an 8-bit HC08 flash microcontroller with 4KB (4K x 8) flash memory, an 8 MHz internal bus operation, and an 8-pin PDIP package. It belongs to the HC08Q family of low-cost, high-performance M68HC08 MCUs. An 8-bit microcontroller (MCU) is a single-chip computer integrating a processor core, program memory, data memory, and peripherals on one die. The M68HC08 family uses a Complex Instruction Set Computer (CISC) with a Von Neumann architecture, and all family members share the enhanced CPU08 central processing unit. The HC08Q subfamily targets cost-sensitive, small-footprint embedded control where an entire application fits in an 8-pin package. Key features include 4KB of in-application-programmable flash memory, the CPU08 core running at up to 8 MHz, an on-chip analog-to-digital converter (ADC), and a low-pin-count 8-PDIP footprint that supports through-hole assembly for prototypes and harsh-environment products. Technically, the MC68HC908QT4 implements monitor-mode execution, allowing code to be downloaded into RAM by a host computer while most MCU pins retain their I/O functions - a significant advantage for field programming and development without dedicated sockets. Flash memory enables reprogramming for firmware updates, replacing earlier one-time-programmable OTP parts in the same footprint. Typical applications include small appliance control, automotive accessories, battery chargers, simple motor control, and industrial sensors where a compact, low-cost controller with ADC inputs is required. A key design consideration: verify flash endurance and erase/program voltage requirements per the manufacturer datasheet, and reserve one ADC channel for supply monitoring in battery-powered designs. This page synthesizes distributor availability data, family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MC68HC908QT4VPE - 8-Bit 8MHz Flash MCU | NXP | Industrial
MC68HC908QT4VPE

MC68HC908QT4VPE - 8-Bit 8MHz Flash MCU | NXP | Industrial

The NXP Semiconductors MC68HC908QT4VPE is an 8-bit M68HC08 CISC microcontroller with an 8 MHz clock, 4 KB of Flash memory, an ADC, and an 8-pin DIP package. The supplied distributor records identify an industrial-range HC08 device and conflict on one secondary record that lists 16 MHz and an LCC-52 package. For this exact MPN, DigiKey and Rochester data instead identify an 8-pin DIP MCU, so the 8 MHz value and package description below are used. What is an 8-bit MCU? A microcontroller is a semiconductor device that combines a processor core, program memory, data memory, I/O, and peripherals on one integrated circuit. The M68HC08 family uses the CPU08 enhanced core, a complex instruction set computer architecture, and Von Neumann organization. Within the hierarchy, this part is an MCU, an embedded microcontroller, an 8-bit microcontroller, and a member of NXP's M68HC08 family. Verified highlights include 4 KB (4K x 8) of Flash program memory, an 8 MHz operating frequency, an integrated ADC, and an industrial operating range. A further indexed specification lists 4.5 V to 5.5 V supply voltage and 40 I/O ports, but those values conflict with the exact MPN's eight-pin package listing and are therefore not presented as authoritative target-part specifications. Flash memory supports in-system reprogramming workflows, although programming voltage, timing, and electrical limits require confirmation from the manufacturer documentation. The CPU08 platform suits compact control tasks that need deterministic 8-bit processing, serial communication, digital control, and analog measurement without requiring a higher-cost 16- or 32-bit processor. Its small package simplifies through-hole prototypes, but package pin limitations constrain how many external functions can be connected simultaneously. Software migration should therefore be evaluated at both instruction and peripheral levels rather than inferred from the 8-bit label. Typical uses include industrial control modules, compact instrumentation, educational embedded systems, sensor interfaces, and legacy equipment support. The ADC makes the MCU useful when a board must convert analog inputs into digital control values, while Flash permits field-updatable firmware when the manufacturer's programming procedure is followed. Designers should resolve the conflicting indexed records before release. Confirm the exact ordering code, clock rating, pinout, memory map, programming model, and electrical limits in NXP documentation; do not substitute data associated with another HC08 package or variant. This page distinguishes exact-MPN distributor evidence from broader family material and flags every missing engineering value rather than inferring it.

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MC68HC908QY1CDTE - 8-bit HC08 MCU, 1.5KB Flash, 8MHz | NXP
MC68HC908QY1CDTE

MC68HC908QY1CDTE - 8-bit HC08 MCU, 1.5KB Flash, 8MHz | NXP

The NXP MC68HC908QY1CDTE is an 8-bit HC08-family microcontroller delivering 8MHz CPU performance with 1.5KB of on-chip Flash program memory and 128 bytes of RAM in a 16-pin TSSOP package. It targets cost-sensitive embedded applications that require reliable Flash-based program storage, low pin count, and a stable 5V (4.5V to 5.5V) supply rail. The part is supplied in tube packaging, is rated for the industrial operating range, and integrates peripherals such as PWM, LVD, and POR that simplify power and motor-control designs. An 8-bit microcontroller (MCU) is a small, single-chip computer built around an 8-bit data path, optimized for deterministic, low-power, cost-driven control tasks. The HC08 family uses a CISC Von Neumann architecture with the CPU08 core; it sits within the broader taxonomy of microcontrollers -> microprocessors -> semiconductor ICs. MCUs differ from microprocessors (MPU) by integrating program memory, RAM, and peripherals into a single device, eliminating external memory glue and reducing BOM cost. Key features of the MC68HC908QY1CDTE include 1.5KB Flash program memory, 128 bytes of RAM, an 8MHz bus clock, 13 programmable I/O lines, on-chip PWM channels, and built-in low-voltage detect (LVD) and power-on reset (POR) for robust 5V-only operation. The 16-pin TSSOP footprint gives designers a compact surface-mount solution that is straightforward to assemble on double-sided boards. The lack of an integrated ADC distinguishes this QY1 variant from the ADC-equipped QY2/QY4 siblings. Architecturally, the HC08 CPU08 core executes the standard M68HC08 instruction set, including bit-manipulation and multiply instructions that are useful for control loops. The Flash memory is in-system programmable, which simplifies firmware updates in the field. The peripheral set - PWM, timers, LVD, POR - is mapped onto the 13 I/O pins, giving the designer flexibility to configure each pin for digital I/O or peripheral function. Typical applications include low-cost appliance control (washing machines, microwave ovens, fans), battery chargers, LED lighting controllers, remote-control receivers, and simple sensor-interface front-ends. The industrial temperature range and proven Flash reliability also suit industrial sensor modules and HVAC damper controllers. For designs that need analog conversion, the companion QY2/QY4 variants with on-chip ADC are recommended. When designing with this part, ensure your firmware programmer supports the HC08 Flash algorithm and that your 5V rail provides clean decoupling within the 4.5V to 5.5V spec. Use the internal LVD to detect brown-out conditions rather than relying solely on POR. This page synthesizes distributor pricing, verified drop-in alternatives from the HC08 QY family, and practical design notes not found in the manufacturer datasheet.

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MC68HC908QY1MPE - HC08 8-Bit MCU 1.5KB Flash 8MHz 8-DIP
MC68HC908QY1MPE

MC68HC908QY1MPE - HC08 8-Bit MCU 1.5KB Flash 8MHz 8-DIP

The NXP MC68HC908QY1MPE is an 8-bit HC08-family microcontroller (MCU) featuring 1.5KB of Flash program memory, 128 bytes of RAM, an internal oscillator, and 13 general-purpose I/O pins, all housed in an 8-pin PDIP (8-DIP, 0.300 inch, 7.62 mm) through-hole package. The device runs the HC08 CPU core at up to 8 MHz bus speed, integrates a low-voltage detector (LVD), power-on reset (POR), and a pulse-width modulator (PWM) channel, and is designed for cost-sensitive 8-bit embedded designs. What is an HC08 microcontroller? The HC08 is NXP/Freescale's 8-bit CISC (Complex Instruction Set Computer) microcontroller family, part of the M68HC08 lineage originally developed by Motorola. Architecturally it is a Von Neumann, accumulator-based design optimized for low pin count and low cost; it sits in the product-type hierarchy as 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The MC68HC908QY1MPE belongs to the QY sub-series, the smallest-member low-pin-count line of the HC08 family, typically used in appliances, toys, simple motor timers, and sensor interfaces where an SoC-grade ARM Cortex would be overkill. Key features: 1.5 KB Flash with in-system programmability via the QY series monitor ROM, 128 bytes SRAM, 13 bidirectional I/O lines sharing package pins with the timer/PWM and IRQ functions, an internal oscillator that eliminates the external crystal in many applications, and 3.0V-5.5V single-supply operation. The on-chip LVD and POR reduce external reset circuitry to zero, making the device attractive for harsh industrial environments. The HC08 core uses a 16-bit stack pointer and an 8-bit accumulator plus index register, executes most instructions in two bus cycles at 8 MHz internal bus (125 ns minimum cycle), and supports BCD, bit-manipulation, and low-power STOP/WAIT modes. The integrated PWM module supports edge-aligned output for LED dimming or simple DC motor control. Typical applications include low-cost appliance controllers (rice cookers, washing-machine timers), LED lighting drivers, simple motor/timer controls, IR remote receivers, battery chargers, and industrial sensor interfaces where its 8-bit performance, internal oscillator, and tiny 8-DIP footprint minimize BOM. Design consideration: Because the QY1 device comes only in 8-DIP and lacks an analog-to-digital converter (no ADC), designs requiring ADC must move up to the QY2 (which adds ADC) or to a different family. Verify that the application's code fits within the 1.5 KB Flash boundary before committing to this part. This page synthesizes NXP datasheet specifications, current distributor pricing and inventory, and a curated list of drop-in compatible equivalents, providing information not found on a single OEM or distributor page.

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MC68HC908QY1VDTE - 16MHz 8-Bit Flash MCU | NXP | TSSOP-16
MC68HC908QY1VDTE

MC68HC908QY1VDTE - 16MHz 8-Bit Flash MCU | NXP | TSSOP-16

The NXP Semiconductors MC68HC908QY1VDTE is an automotive-grade 8-bit HC08-family microcontroller operating at 16 MHz, with 1.5 KB of Flash program memory, 40 I/O ports, and a 4.5 V to 5.5 V supply range. It is supplied in a 16-pin TSSOP package according to distributor records. The device combines a compact embedded-control footprint with Flash programmability and a conventional 5 V operating range, making it suitable for cost-sensitive embedded systems that do not require a high-pin-count MCU. What is an 8-bit microcontroller? An 8-bit microcontroller is a compact embedded-control IC whose central processing unit processes data in 8-bit units. A microcontroller belongs to the semiconductor hierarchy and integrates processor logic, memory, I/O, and peripheral functions into one device. In this product, the HC08 family designation identifies NXP's 8-bit embedded-control family, while Flash memory allows application firmware to be programmed into the device. The verified product information identifies a 16 MHz clock speed, Flash program memory, 40 I/O ports, and a 4.5 V to 5.5 V supply-voltage range. Those four values define the core selection criteria for a new design. The 40 I/O ports provide external control and monitoring capacity, while the 16 MHz operating speed supports embedded control loops and peripheral communication. The NXP listing also describes the device as automotive-grade, although detailed qualification and environmental parameters are not present in the supplied excerpts. The MC68HC908QY1VDTE is associated with the MC68HC908QY1 family and is identified by distributor listings as a low-cost, high-performance M68HC08-family 8-bit MCU. Its package information is inconsistent across the supplied search results: one result identifies LCC-52, while other distributor snippets identify a 16-TSSOP package. Because the exact ordering code must control mechanical design, use the NXP product page and the official MC68HC908QY1 datasheet before selecting a footprint or preparing a PCB. Typical use cases include simple industrial controllers, appliance-control boards, sensor-conditioning systems, compact motor-control interfaces, and automotive accessory controllers. The 5 V supply range is suitable for conventional embedded systems where a regulated 4.5 V to 5.5 V rail is available. Designers should verify the complete pinout, memory map, peripheral set, electrical limits, and package dimensions from the manufacturer documentation because those details are not fully included in the verified excerpts. For PCB design, treat the listed package as provisional until the exact package drawing is confirmed. Place required decoupling close to the supply pins, route sensitive signals away from switching nodes, and preserve the manufacturer's recommended oscillator and reset layout. Firmware development should be matched to the HC08 toolchain and memory organization documented for the selected device variant. This page consolidates the verified distributor and manufacturer-page snippets, highlights the confirmed 16 MHz, 1.5 KB Flash, 40-I/O, and 4.5 V-to-5.5 V characteristics, and records unresolved package and qualification details instead of guessing them. It is intended to help engineers identify the correct MCU and request the authoritative NXP documentation before committing to production hardware.

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MC68HC908QY2CDTE - 8-Bit 8MHz 1.5KB Flash MCU | NXP
MC68HC908QY2CDTE

MC68HC908QY2CDTE - 8-Bit 8MHz 1.5KB Flash MCU | NXP

The NXP Semiconductors MC68HC908QY2CDTE is an 8-bit HC08 microcontroller with an 8 MHz maximum clock, 1.5 KB of Flash program memory and a 16-TSSOP package. Verified distributor data also identifies 128 x 8 RAM, 13 I/O pins, ADC, PWM, low-voltage detection and power-on reset features. The device belongs to the M68HC08 family, whose CISC CPU08 core and Von Neumann architecture are designed for compact embedded-control designs. A microcontroller is a programmable system-on-chip that combines a processor core, nonvolatile program memory, data memory, I/O ports and embedded peripherals in one package. In the broader semiconductor hierarchy, the MC68HC908QY2CDTE is an MCU, then an embedded processor, then a semiconductor. Its HC08Q architecture targets applications where an 8-bit control engine, modest memory and integrated analog or timing functions are more appropriate than a higher-cost application processor. Key verified features include 8-bit processing, 8 MHz operation, 1.5 KB of Flash program memory and 128 bytes of RAM. The integrated ADC supports measurements without a separate converter, while PWM, low-voltage detection and power-on reset reduce external circuitry. Its 16-TSSOP package is substantially more compact than larger leaded packages, although the exact pin functions and exposed pad details require confirmation from the official datasheet before layout release. The M68HC08 family uses the enhanced CPU08 central processor and a Von Neumann memory organization. One retrieved product description identifies a 4.5 V to 5.5 V supply range and industrial operating class, while another distributor result lists 40 I/O ports; this conflicts with the 16-pin package and the separate 13-I/O result. The package-pin limitation makes 13 I/O the physically plausible figure, but the conflicting listing is retained as an uncertainty rather than resolved without official documentation. Typical uses include compact industrial controllers, simple sensor-conditioning systems, keypad interfaces, motor or valve-control sequencers and small battery-operated instruments. The ADC is useful when a design must digitize an analog sensor signal, while PWM can support actuator, lighting or motor-control functions. The 1.5 KB Flash capacity makes firmware size and table placement central design constraints. For new designs, verify lifecycle status, clock, memory, ADC characteristics, pin multiplexing and absolute maximum ratings against the current NXP datasheet. Because the product page states End of Life and a distributor result states Not For New Designs, production use should receive an availability and obsolescence review. Do not infer that a similarly named MC908 or MC68HC908 device is a drop-in replacement without checking its complete pinout and electrical specification.

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MC68HC908QY2CPE - 8-Bit 8MHz 1.5KB Flash MCU | NXP | DIP-16
MC68HC908QY2CPE

MC68HC908QY2CPE - 8-Bit 8MHz 1.5KB Flash MCU | NXP | DIP-16

The NXP MC68HC908QY2CPE is an 8-bit HC08-family microcontroller unit (MCU) featuring 1.5 KB of on-chip FLASH program memory, 128 bytes of RAM, and an integrated ADC, all housed in a 16-pin PDIP (plastic DIP) through-hole package. It operates at a system bus frequency of up to 8 MHz from a 3.3 V or 5 V supply, making it a member of the low-cost, high-performance M68HC08 family of Complex Instruction Set Computer (CISC) microcontrollers built on a Von Neumann architecture. An 8-bit microcontroller is a small computing system-on-chip that integrates a CPU core, program memory (FLASH/ROM), working RAM, and peripherals such as timers, communication interfaces, and analog-to-digital converters into a single IC. The M68HC08 family sits at the bottom of the 8-bit MCU taxonomy: 8-bit MCU -> CISC -> Von Neumann -> HC08 -> QY sub-family, designed for cost-sensitive embedded applications requiring deterministic behavior and very low power consumption. Key features of the MC68HC908QY2CPE include 1.5 KB FLASH with in-circuit programming capability, 128 B RAM, an internal 6-channel 8-bit ADC, an enhanced 16-bit timer with selectable PWM channels, a Low-Voltage Detect (LVD) module, Power-On Reset (POR), and 13 general-purpose I/O lines multiplexed onto the 16-pin package. The HC08 core executes the M68HC08 instruction set with a typical 2-byte / 1-cycle fetch and supports BCD arithmetic, which simplifies decimal handling in metering and consumer applications. Architecturally, the device uses a fully static Von Neumann design with a single internal bus shared between program and data memory, allowing direct register-to-memory operations. The internal clock can be derived from an external crystal, an external clock source, or the on-chip RC oscillator, simplifying BOM cost for non-timing-critical designs. The 16-pin PDIP footprint (0.300 inch / 7.62 mm body width) targets hand-soldered prototypes, educational platforms, and industrial control modules where through-hole assembly remains preferred over surface-mount. Typical applications include low-cost appliance controllers, simple sensor signal conditioning with on-chip ADC, IR remote controls, battery chargers, lighting ballasts, security keypads, and industrial digital logic replacement. Its 5 V tolerance on I/O and integrated peripherals make it well suited for drop-in upgrades of older HC05 designs. Designers should consider the device's 8 MHz maximum internal bus rate when planning real-time response budgets; loops that exceed this rate require the on-chip timer interrupt to offload work. The PDIP-16 footprint allows easy rework but limits production volume, so plan migration to the equivalent SOIC-16 package (MC68HC908QY2CDW) for high-volume manufacturing. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes drawn from manufacturer datasheets and parametric data, content not aggregated on any single distributor page.

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MC68HC908QY2MP - 8-bit MCU 8MHz 1.5KB Flash 16-PDIP | Freescale
MC68HC908QY2MP

MC68HC908QY2MP - 8-bit MCU 8MHz 1.5KB Flash 16-PDIP | Freescale

The Freescale Semiconductor (now NXP) MC68HC908QY2MP is an 8-bit M68HC08 flash microcontroller running at up to 8 MHz, with 1.5 KB (1.5K x 8) of flash program memory, housed in a 16-pin PDIP (plastic dual in-line package). A microcontroller unit (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals on one die. Within the embedded systems hierarchy, the MC68HC908QY2 belongs to the 8-bit microcontroller class, positioned as a low-pin-count member of the M68HC08 family - a lineage that evolved from the classic 6805/HC05 architecture and precedes the S08 and ColdFire families. The HC08 CPU core executes the HC08 instruction set with efficient byte-level operations suited to cost-sensitive control tasks. Key features of the MC68HC908QY2MP include the HC08 CPU core at 8 MHz internal bus operation, on-chip flash memory allowing in-circuit reprogramming, and an integrated analog-to-digital converter (per Jotrin: 1.5K FLASH with ADC). The quad-family (QY/QT) HC08 parts integrate oscillator, timer modules, and I/O into a compact 16-pin footprint, making them classic choices for board-space-constrained and through-hole designs. Technically, the device uses flash-based program storage with on-chip charge pump for erase/program operations, plus an enhanced serial peripheral and monitoring capability via the single-wire background debug interface used across the HC08 family. Low-voltage inhibit reset, computer operating properly (COP) watchdog, and oscillators are on-chip, minimizing external component count. Typical applications include small appliance control, battery chargers, simple sensor interfaces, industrial timers, and legacy-equipment maintenance where a through-hole 16-PDIP 8-bit MCU is required. Design consideration: verify flash density (1.5 KB) and available ADC channels against your code size before committing; the QY2 is the smallest flash density in the QY4/QY2/QY1 family ladder. This page synthesizes distributor availability, same-family drop-in alternatives, and procurement guidance for this legacy part not found in the manufacturer datasheet.

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MC68HC908QY2MPE - 8-Bit HC08 MCU, 1.5KB Flash, 16-DIP | NXP
MC68HC908QY2MPE

MC68HC908QY2MPE - 8-Bit HC08 MCU, 1.5KB Flash, 16-DIP | NXP

The NXP (formerly Freescale / Motorola) MC68HC908QY2MPE is an 8-bit HC08 family microcontroller unit (MCU) with 1.5KB of on-chip Flash program memory, packaged in a 16-pin PDIP (0.300 inch, 7.62mm). It features the HC08 CPU core running at up to 8MHz internal bus frequency, an on-chip 4-channel 8-bit ADC, and the low-cost M68HC08 architecture intended for cost-sensitive embedded control. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and peripherals (timers, ADC, GPIO, communication interfaces) onto a single silicon die. Within the broader semiconductor taxonomy, MCUs sit under microcontrollers, then embedded processors, then logic ICs. The HC08 family is a CISC (Complex Instruction Set Computer) family with a Von Neumann architecture, designed as a high-performance successor to the earlier M68HC05 family while remaining a low-cost, easy-to-program platform for consumer and industrial control. Key features of the MC68HC908QY2MPE include 1.5KB Flash, 128 bytes of RAM, an internal 8MHz oscillator, an integrated 8-bit ADC with up to 4 input channels (depending on package variant), a 16-bit timer with two capture/input-compare channels, and 13 general-purpose I/O pins. The device supports in-circuit programming via a single-wire background debug mode (BDM) and operates across a voltage range typical of HC08 Q-family parts. From an architectural perspective, the HC08 CPU uses a Von Neumann bus with 16-bit address space and provides upward source compatibility with the legacy HC05 instruction set, allowing existing code to be ported with minimal changes. The on-chip Flash supports byte-by-byte programming with internal charge pumps, eliminating the need for an external programming voltage supply. The part supports a low-power WAIT and STOP mode for battery-friendly designs. Typical applications include low-cost appliance controls (white goods, HVAC, fan controllers), remote-control transmitters, simple sensor interfaces, battery chargers, and educational/development tools for learning 8-bit embedded programming. The 16-pin PDIP package is favored for through-hole prototyping and hobbyist designs. When designing with the MC68HC908QY2MPE, ensure that the chosen package exposes the required peripheral pins: in the 16-pin PDIP the ADC channel count and timer pin availability may be reduced compared to the 8-pin variants of the same family. Always verify the pinout against the HC08 Q-family datasheet before committing to a layout. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes from across the M68HC08 family - information not aggregated in any single manufacturer datasheet.

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MC68HC908QY4MDTE - 8-bit HC08 MCU 4KB Flash 16-TSSOP | NXP
MC68HC908QY4MDTE

MC68HC908QY4MDTE - 8-bit HC08 MCU 4KB Flash 16-TSSOP | NXP

The NXP MC68HC908QY4MDTE is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units (MCUs) with 4KB of Flash program memory, an integrated ADC, and 13 general-purpose I/O pins, housed in a 16-pin TSSOP package. It features a CPU08 core running at up to 8 MHz bus frequency, 128 bytes of RAM, and built-in peripherals including Low-Voltage Detect (LVD), Power-On Reset (POR), and a PWM module, making it suitable for automotive under-hood and industrial control applications. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (RAM and non-volatile program memory), and peripherals on a single die, designed for embedded control tasks where deterministic behavior and low cost are primary requirements. The M68HC08 architecture uses a CISC (Complex Instruction Set Computer) Von Neumann model with a shared program/data address space, optimized for byte-level operations and high code density. Within the broader taxonomy, 8-bit MCUs sit below 16-bit MCUs (e.g., HC12) and 32-bit MCUs (e.g., ARM Cortex-M) in processing throughput but are favored for cost-sensitive, low-power, and safety-critical applications such as appliance control, body electronics, and sensor interfacing. Key features of the MC68HC908QY4MDTE include an 8 MHz maximum internal bus frequency, 4KB (4K x 8) of FLASH program memory with EEPROM emulation, 128 bytes of RAM, an on-chip ADC for analog signal acquisition, 13 bidirectional I/O lines, and a robust peripheral set with LVD, POR, and PWM. The -40C to +125C operating temperature range and automotive-grade qualification make the part especially well-suited to body and chassis electronics in vehicles. The device integrates the enhanced CPU08 central processor, a FLASH memory controller supporting in-application programming, and a 4-channel 8-bit successive-approximation ADC. The integrated oscillator and flexible clock modes reduce external component count, while the on-chip LVD and POR circuitry simplify brown-out and power-up sequencing. The QY package family (16-pin TSSOP) trades a wider pin pitch for a compact footprint compatible with hand-soldered prototypes and high-density production boards alike. Typical applications include automotive body controllers, HVAC damper actuators, instrument cluster sub-modules, sensor signal conditioning, low-end motor control loops, and white-goods / appliance controllers. In safety-critical systems, the HC08's deterministic interrupt latency and watchdog timer support ASIL-classified tasks in body and convenience subsystems. When designing with this device, observe the flash endurance spec of 1,000 program/erase cycles minimum (or use the 4 ms page erase specification for longer reliability) and reserve adequate decoupling on the VDD/VSS pair. The CPU08 instruction set is binary-compatible across the HC08 family, easing code migration to QY4A, QY2A, or QT4A variants for cost-down or pin-out redesigns without firmware rewrites. This page synthesizes distributor pricing, drop-in TSSOP-16 alternatives, and practical design notes not found in the manufacturer datasheet alone.

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MC68HC908RF2CFA - 8-Bit HC08 4MHz MCU 2KB Flash | NXP
MC68HC908RF2CFA

MC68HC908RF2CFA - 8-Bit HC08 4MHz MCU 2KB Flash | NXP

The NXP MC68HC908RF2CFA is an 8-bit HC08-family microcontroller unit (MCU) featuring 2KB of FLASH program memory, 128 bytes of RAM, and 12 general-purpose I/O lines, housed in a 32-pin LQFP package (7x7 mm). It operates at a 4 MHz bus frequency from a 2.5 V or 3.3 V supply, making it a member of the low-cost, high-performance M68HC08 family of 8-bit microcontroller units. What is an 8-bit microcontroller? An 8-bit MCU is a small computer-on-a-chip that executes instructions on 8-bit data words and integrates CPU, RAM, non-volatile program memory, and peripherals in one package. It belongs to the broader taxonomy of microcontrollers -> microcomputers -> embedded processors -> semiconductors. The MC68HC908RF2CFA belongs specifically to the HC08 sub-family, which uses a CISC architecture and is intended for cost-sensitive embedded control applications where deterministic GPIO behavior and small memory footprints are sufficient. Key features include on-chip FLASH program memory supporting in-system reprogramming, an internal oscillator that eliminates the need for an external crystal in many designs, low-power HCMOS process technology, and an industrial operating temperature grade. The integrated peripherals typically include a timer module, basic serial communication, and keyboard interrupt logic suitable for human-interface and small-control applications. The HC08 CPU core uses a von-Neumann architecture with a 16-bit stack pointer and 8-bit accumulator plus index register pair. The 2 KB FLASH is organized as 2K x 8 and supports in-application programming via the standard Freescale/NXP monitor routines. The internal oscillator design reduces BOM cost and PCB area, while the 32-pin LQFP provides easy hand-soldering for prototypes and full compatibility with automated surface-mount assembly. Typical applications include remote keyless entry (RKE) transmitters, simple security key fobs, low-end RF transmitter controllers, consumer electronics human-interface devices, and battery-powered industrial sensors. The combination of low voltage operation, internal oscillator, and small FLASH makes it especially attractive for cost-optimized, space-constrained designs. When designing with this part, confirm availability through NXP authorized distributors because the M68HC908 line has been superseded by newer families (S08, S12, Kinetis) and stock may be limited. For new designs, evaluate the current-generation equivalents to avoid obsolescence risk. Ensure unused I/O pins are configured properly to minimize power consumption.

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MC68HC908SR12CB - 8-Bit HC08 MCU, 12KB Flash, 8MHz, 42-PDIP | NXP
MC68HC908SR12CB

MC68HC908SR12CB - 8-Bit HC08 MCU, 12KB Flash, 8MHz, 42-PDIP | NXP

The NXP MC68HC908SR12CB is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units built around the enhanced M68HC08 CPU08 core. It integrates 12KB of on-chip FLASH program memory (12K x 8), 512 bytes of RAM, an 8 MHz maximum bus frequency, and is housed in a 42-pin PDIP (Plastic DIP) through-hole package. The part is targeted at cost-sensitive embedded control applications that need on-chip analog integration. What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a small computer-on-a-chip integrating a CPU, program memory (ROM/FLASH), working RAM, and peripherals on a single die. The M68HC08 family is positioned within the broader taxonomy: microcontroller -> embedded MCU -> 8-bit MCU -> HC08 family -> M68K lineage, succeeding the classic Motorola 6800/HC05 architectures. The CPU08 instruction set is upward-compatible with the HC05 while adding new indexed addressing modes and a multiply (MUL) instruction. Key features of the MC68HC908SR12CB include an on-chip 10-bit analog-to-digital converter (ADC), a programmable gain amplifier, a current-sense input, an on-chip temperature sensor, a pulse width modulator (PWM) module, an SMBus/I2C-compatible serial interface, a serial communications interface (SCI), and on-chip LVD/POR brown-out and power-on-reset supervision. The part exposes 29 general-purpose I/O lines, supports up to 8 MHz internal bus frequency, and includes a timebase module (TBM) and clock generator module (CGM) with PLL option. Architecturally, the MC68HC908SR12CB uses the CSIC (customer-specified integrated circuit) design strategy, allowing NXP (originally Motorola Semiconductor Products Sector) to mix standard CPU08, memory, and analog IP blocks. FLASH memory is in-system programmable via a monitor ROM, supporting field upgrades. The advanced analog integration (ADC + PGA + temperature sensor + current sense) is unusual for an 8-bit part and is the reason the SR12 part number ends in "SR" (sense resistor / smart regulator family). Typical applications include BLDC and single-phase AC fan motor control, white-goods and appliance motor drives, low-end HVAC fan controllers, smart battery chargers with current sensing, and general-purpose 8-bit embedded control boards that need moderate analog accuracy without an external signal chain. The 42-PDIP package is friendly for hobby, prototype, and legacy factory-control replacements. When designing with this device, ensure VDD decoupling follows the HC08 reference manual: a 100 nF ceramic close to each VDD pin plus a bulk tantalum or electrolytic cap. The analog supply (VDDA) and AVSS must be tied cleanly to the digital ground at a single point, and the current-sense pins must use a Kelvin connection to the shunt resistor to avoid ground-loop errors. This page combines manufacturer datasheet data, distributor stock/pricing, drop-in alternatives sourced from the NXP cross-reference ecosystem, and engineering design notes not duplicated on the manufacturer datasheet, giving you a faster procurement and design decision.

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MC68HC908SR12CFA - 8MHz 8-Bit HC08 MCU 12KB FLASH 48-LQFP | NXP
MC68HC908SR12CFA

MC68HC908SR12CFA - 8MHz 8-Bit HC08 MCU 12KB FLASH 48-LQFP | NXP

The NXP MC68HC908SR12CFA is an 8-bit HC08-family microcontroller with 12KB of on-chip FLASH program memory and 512 bytes of RAM, operating at a bus frequency of 8MHz from a 48-pin LQFP (7x7mm) package. It features 31 general-purpose I/O lines, an internal oscillator, and on-chip analog/peripheral integration that includes a 10-bit ADC, programmable amplifier, temperature sensor, current sensor, PWM, SMBus, I2C, and a clock generator module with PLL. According to the NXP MC68HC908SR12 datasheet, this part targets cost-sensitive embedded applications that need an integrated analog front end and SMBus connectivity without external components. What is an HC08 microcontroller? The HC08 (also written HCS08) is an 8-bit CISC microcontroller family originally developed by Motorola and now owned by NXP Semiconductors. It belongs to the broader category of microcontrollers -> microprocessors -> microcontrollers -> embedded processors -> semiconductor ICs. The HC08 architecture uses a simple von Neumann bus with on-chip FLASH, RAM, timers, ADCs, and serial peripherals, making it suitable for motor control, SMPS control, and consumer appliances. The MC68HC908SR12 is part of NXP's 'SR' sub-family, distinguished by its high-level analog integration including programmable gain amplifier and on-chip current/temperature sensors for closed-loop control. Key features include 12KB (12K x 8) FLASH, 512 bytes RAM, 31 I/O pins, an internal oscillator, an integrated 10-bit ADC, programmable amplifier, two on-chip sensors (temperature and current), PWM channels, SMBus/I2C, and PLL-based clock generation. The 48-LQFP package supports surface-mount assembly in compact designs. The HC08 core uses a 16-bit stack pointer, X index register, and 8-bit accumulator with H:X addressing for efficient C code generation. Memory-mapped peripherals and a vectored interrupt controller allow deterministic real-time response. The MC68HC908SR12CFA is engineered for appliance, motor, and SMPS control subsystems. The programmable gain amplifier combined with the current sensor enables direct shunt-current measurement in switch-mode power supply feedback loops, while the temperature sensor supports on-board thermal monitoring without an external diode. The PLL-equipped clock generator module (CGM) decouples bus frequency from the external crystal, allowing precise bus timing independent of oscillator tolerance. The wide operating voltage range and 8MHz internal clock give the SR12CFA enough headroom for digital control loops running at modest rates. Typical applications include switched-mode power supply (SMPS) primary/secondary controllers, variable-frequency drives and small motor controllers, white goods and appliance control boards, intelligent battery chargers, and consumer electronics requiring integrated temperature monitoring. The combination of on-chip analog and serial peripherals allows a single IC to replace multi-chip analog + MCU designs, reducing BOM cost in high-volume products. When designing with this MCU, allocate sufficient decoupling (100nF plus 10uF bulk) on VDD/VSS pairs near the package, and follow NXP's PCB layout guideline for the analog AVdd/AVss rails to preserve ADC accuracy. Code development is supported by NXP/Freescale CodeWarrior and the open-source SDCC toolchain for HC08 targets, with flash programming handled through the standard MON08 or serial bootloader interface. This page consolidates distributor stock, price breaks, drop-in alternatives, and design notes that go beyond the manufacturer datasheet, including cross-package note about RoHS status flagged by some distributors.

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MC68HC98LJ12CFU - 8-Bit 8MHz 12KB MCU | Freescale
MC68HC98LJ12CFU

MC68HC98LJ12CFU - 8-Bit 8MHz 12KB MCU | Freescale

Freescale Semiconductor MC68HC98LJ12CFU is an 8-bit M68HC08-family microcontroller with an 8 MHz CPU, 12 KB of on-board flash, and 64-lead QFP packaging in a 14 mm by 14 mm body. The verified distributor listing identifies the device as an HC08 microcontroller with 12K x 8 flash organization. A microcontroller is a programmable semiconductor that integrates a CPU core, memory, and peripherals into one embedded-control component. The M68HC08 family uses the enhanced M68HC08 CPU08 core and a customer-specific integrated circuit design strategy. Within the broader hierarchy, this MCU belongs to the microcontroller, embedded processor, and semiconductor categories, where it executes firmware and supervises connected I/O in compact control systems. The verified data establishes four headline characteristics: an 8-bit architecture, an 8 MHz operating frequency, 12 KB of flash memory, and a 64-QFP package measuring 14 mm by 14 mm. Its nonvolatile program memory allows firmware to be retained without continuous power, while the 8-bit CPU supports embedded-control workloads rather than high-performance computing. The 64-pin package also provides more external interface options than a small-lead-count controller. NXP identifies the HC08LJ and HC08LK devices as members of the low-cost, high-performance M68HC08 family. That family description comes from the official NXP page for the closely identified MC68HC98LJ12CFUE product information. The provided evidence does not expose a complete technical datasheet, so detailed supply voltage, RAM capacity, peripheral list, timer configuration, ADC performance, and electrical limits are not asserted here. Typical legacy embedded-control uses include appliance controllers, compact industrial modules, motor-related control, instrumentation, and system peripheral management. Engineers should select it only when an existing design already targets the CPU08 architecture, memory map, 8 MHz timing, 12 KB flash requirement, and 64-QFP footprint. Firmware and peripheral migration to a different MCU family is not automatically interchangeable. The primary design consideration is software compatibility. Before replacement or redesign, verify the exact clock, reset behavior, memory organization, port multiplexing, interrupt vectors, peripherals, programming method, and pin assignments against the authoritative device documentation. Distributor search snippets can establish commercial identity and headline specifications, but they do not replace a complete manufacturer datasheet. This page consolidates the verified supplier identity, architecture, frequency, flash capacity, package, official family description, and sourcing URLs. It also separates confirmed facts from missing technical data so procurement and engineering teams can assess this legacy MCU without relying on guessed electrical values or unsupported cross-references.

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