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MC908QC8CDZE - 8-Bit 8MHz 8KB Flash MCU | NXP | 28-SOIC
MC908QC8CDZE

MC908QC8CDZE - 8-Bit 8MHz 8KB Flash MCU | NXP | 28-SOIC

The NXP Semiconductors MC908QC8CDZE is an 8-bit HC08 microcontroller operating at 8 MHz with 8 KB of flash memory in a 28-pin SOIC package. It belongs to the HC08Q family within the M68HC08 family and provides a compact embedded-control solution for legacy and cost-sensitive systems. The verified distributor listing identifies the device as an HC08 8-bit microcontroller with 8 KB (8K x 8) flash and a 28-SOIC package. A microcontroller is a semiconductor device that integrates a CPU core, program memory, data memory, and peripherals into one package. The MC908QC8CDZE uses the HC08 architecture, described in the supplied datasheet search result as an enhanced M68HC08 central processing unit within a CISC, Von Neumann microcontroller family. This positioning makes it suitable for compact control, monitoring, and automation products where a deterministic 8-bit controller and established software toolchain are more appropriate than a higher-complexity processor. The principal verified specifications are the 8-bit data-bus width, 8 MHz maximum clock frequency, 8 KB flash configuration, HC08 core, and 28-SOIC package. The flash format is listed as 8K x 8, indicating an 8,096-bit-wide organized flash memory representation in the distributor description. Other electrical details, including RAM capacity, I/O count, voltage range, timer resources, and communication peripherals, are not present in the supplied verified data and are therefore not inferred here. Typical design uses include small motor-control modules, appliance controllers, industrial interface boards, remote sensor nodes, and legacy embedded products that already use the HC08 family. A replacement should be selected only after checking the complete manufacturer datasheet, especially pin assignments, electrical limits, clock requirements, memory organization, and software support. The 28-SOIC footprint is the mechanically confirmed package class in the verified listing, but a genuine drop-in alternative requires exact pin and functional equivalence, not merely a similar flash size. This page consolidates verified distributor and datasheet-search references for MC908QC8CDZE, highlights the 8 MHz HC08 architecture and 8 KB flash configuration, and separates confirmed data from parameters requiring engineering review. Pricing, lifecycle status, pin-level details, and alternative-device specifications should be confirmed against current manufacturer or authorized-distributor documentation before design release.

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MC908QF4CFJ - 8-Bit 2MHz 4KB Flash MCU | NXP | LQFP-32
MC908QF4CFJ

MC908QF4CFJ - 8-Bit 2MHz 4KB Flash MCU | NXP | LQFP-32

The NXP Semiconductors MC908QF4CFJ is an 8-bit Freescale HC08 microcontroller with a 2 MHz operating frequency, 4 KB of Flash memory, and a 32-LQFP 7 x 7 mm package. It is presented by DigiKey as an HC08 microcontroller IC with 4K x 8 Flash organization. The verified distributor data also identifies the device as a 32-LQFP microcontroller and provides links to its datasheet and distributor availability. What is an 8-bit microcontroller? An 8-bit microcontroller is a compact embedded-controller IC whose central processing unit operates on 8-bit data words. A microcontroller integrates a CPU, program memory, data memory, and peripheral interfaces into one package. In the broader electronics hierarchy, it belongs to the embedded-processing category, the microcontroller family, and ultimately the semiconductor-device ecosystem. The HC08 architecture is intended for cost-sensitive embedded control, product-control, and small-system applications. The MC908QF4CFJ’s principal verified specifications are its 8-bit CPU, 2 MHz clock, 4 KB Flash program memory, and 32-LQFP package. Its 4 KB Flash capacity is suitable for compact firmware that does not require a large application image. The 32-LQFP package provides a surface-mount footprint for PCB assembly, while the 7 x 7 mm package dimensions support space-conscious control boards. Additional electrical, timing, peripheral, environmental, and lifecycle values were not included in the supplied verified data and are marked where applicable. Typical embedded applications include appliance controllers, simple keypad panels, sensor-conditioning hubs, motor-control sequencers, and compact industrial interfaces. In these systems, the Flash memory stores control firmware while the microcontroller coordinates inputs and outputs. The 2 MHz operating frequency is appropriate for supervisory and deterministic control tasks, although final suitability depends on the required processing load, timing budget, and peripheral requirements. Designers should verify the complete manufacturer datasheet before assigning I/O, programming connectors, clock circuitry, decoupling, and package-specific land patterns. Because the supplied data does not expose a verified pin table or detailed electrical limits, those details should not be inferred. The supplied evidence supports sourcing and family identification, but it does not substitute for application-specific engineering validation.

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MC908QL3CDWE - 8-bit HC08 MCU, 6KB Flash, 16-SOIC | NXP
MC908QL3CDWE

MC908QL3CDWE - 8-bit HC08 MCU, 6KB Flash, 16-SOIC | NXP

The NXP MC908QL3CDWE is an 8-bit HC08 family microcontroller featuring 6KB of on-chip FLASH program memory, a maximum CPU speed of 8 MHz, and a LIN (Local Interconnect Network) friendly peripheral set, all integrated in a 16-pin SOIC package. It is a member of NXP's cost-optimized Nitron line intended for body-electronics and distributed-node automotive/industrial applications where small footprint, low power and LIN connectivity matter more than raw processing throughput. The device integrates an 8-bit HC08 CPU core, timers, ADC channels, GPIO and a SCI/LIN-compatible serial interface. An 8-bit microcontroller (MCU) is a single-chip computer that combines an 8-bit CPU core, program memory (FLASH/ROM), data memory (RAM), and a fixed set of I/O peripherals into one IC. In the wider semiconductor taxonomy an MCU belongs to microcontrollers -> microcomputers -> processors -> logic/semiconductor ICs. The HC08 architecture is a simplified, register-rich 8-bit core derived from the earlier Motorola/Freescale 6800/68HC05 family and is widely used in cost-sensitive LIN nodes, sensor interfaces and human-machine interface (HMI) peripherals where deterministic I/O behaviour and small code size outweigh arithmetic performance. Key features include 6KB (6K x 8) FLASH, 128 bytes of RAM (typical for the family), an internal 8 MHz bus clock derived from an on-chip oscillator, an LIN/SCI-compatible asynchronous serial port for 12V-bus communication, multiple 16-bit timer channels, an analog-to-digital converter with multiple input channels, and a low-power STOP/WAIT mode for battery-friendly operation. The 'C' temperature grade (industrial, -40C to +85C) and the 'DWE' SOIC-16 packaging code target through-hole-replacement surface-mount assembly on compact LIN node PCBs. Technically, the MC908QL3CDWE uses a non-multiplexed 8-bit data bus with a 16-bit address space, allowing access to the full FLASH/RAM. The integrated voltage supervisor and brown-out reset help the device survive automotive cranking transients. Programming and debug are typically performed via the on-chip MON08 or background-debug-mode (BDM) interface, depending on family variant, using a low-cost in-circuit programmer. Typical applications include automotive body-control LIN slaves (window lift switches, mirror controllers, seat switch modules, door modules, lighting nodes), HVAC fan controllers, appliance front panels, low-end sensor interface boards, and any distributed electronic node where a small, rugged MCU is required. Because the part has a built-in LIN-friendly SCI, it is well matched to LIN 1.x/2.x networks where the MCU acts as a slave node responding to a master body controller. When designing with this device, reserve adequate PCB area for the 16-pin SOIC decoupling and consider an external 5V LDO if the upstream 12V battery feed is noisy. A typical automotive design uses a reverse-battery protection diode, TVS clamp, and bulk capacitance of at least 10 uF near the VDD pin. This page synthesizes distributor pricing, drop-in NXP and cross-brand alternatives, and practical design notes not found in the manufacturer's datasheet, providing a one-stop engineering reference for the MC908QL3CDWE.

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MC908QL4MDT - 8-Bit HC08 MCU 4KB Flash 16-TSSOP | NXP
MC908QL4MDT

MC908QL4MDT - 8-Bit HC08 MCU 4KB Flash 16-TSSOP | NXP

The NXP MC908QL4MDT is an 8-bit HC08 family microcontroller integrating 4 KB of on-chip Flash program memory and 128 bytes of RAM, housed in a 16-pin TSSOP package. The part runs from an internal 8 MHz oscillator, exposes 13 general-purpose I/O lines, and operates across an extended -40 C to +125 C junction range for industrial and automotive under-hood environments. A microcontroller (MCU) is a single-chip computer that combines a CPU core, volatile and non-volatile memory, and a set of programmable peripherals on one silicon die. Within the broader taxonomy, the MC908QL4MDT belongs to the HC08 family of 8-bit microcontrollers, which itself sits within the M68HC05/MC68HC08 legacy 8-bit lineup and the wider category of microcontrollers (MCU) and embedded processors. MCUs are a subset of integrated circuits (ICs) and form the computational heart of nearly every embedded system, from white goods to automotive body controllers. Key features of the MC908QL4MDT include 4 KB (4K x 8) of in-application-reprogrammable Flash for firmware storage, an internal oscillator that eliminates an external crystal in cost-sensitive designs, a low-pin-count 16-pin TSSOP that simplifies PCB layout, and a wide operating voltage range typical of the QL family. The 8-bit CPU core provides deterministic interrupt response, making the part well suited to real-time control loops. The architecture is built on the well-proven HC08 CISC core with a unified memory map and a MON08 background-debug-mode (BDM) interface for flash programming and in-circuit debugging. The Flash controller supports in-application programming through a TBD/IRO routine, allowing field firmware upgrades. The 13 GPIO pins multiplex with the on-chip peripherals (timer, ADC, KBI, SCI) and can be reconfigured at runtime. Typical applications include automotive body controllers, sensor signal conditioning, simple HVAC fan/lighting controls, appliance user-interface boards, and low-cost remote keyless-entry (RKE) transmitters. The part's small footprint and internal oscillator reduce BOM cost, while the automotive temperature grade enables direct placement in cabin and under-hood modules. When designing with this device, allocate at least one pin to the RESET signal and follow the MON08 BDM pinout for production programming. Decouple VDD/VSS pairs with 100 nF ceramic capacitors placed as close as possible to the supply pins to suppress switching transients from the internal oscillator and I/O toggling. This page consolidates distributor stock levels, drop-in compatible alternatives, and engineering design notes not duplicated in the original NXP datasheet, providing a one-stop reference for procurement and design-in decisions.

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MC908QT1ACFQE - 8-bit HC08 MCU, 1.5KB Flash, 8MHz | NXP
MC908QT1ACFQE

MC908QT1ACFQE - 8-bit HC08 MCU, 1.5KB Flash, 8MHz | NXP

The NXP MC908QT1ACFQE is an 8-bit HC08-family CISC microcontroller with 1.5KB of Flash program memory, 128 bytes of RAM, and 5 I/O pins, housed in an 8-pin DFN (4x4 mm) exposed-pad package. It runs at up to 8MHz from an internal oscillator and operates from a 3.3V or 5V supply, making it suitable for compact, cost-sensitive embedded designs. What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash or ROM), volatile working memory (RAM), and peripheral blocks (timers, I/O, ADC, communications) into one package. Within the broader taxonomy, MC908QT1ACFQE belongs to the HC08 family of CISC microcontrollers, which falls under microcontrollers -> embedded processors -> semiconductor ICs. The CISC (Complex Instruction Set Computer) architecture uses a Von Neumann memory map where program and data share a single bus, simplifying firmware development at the cost of execution speed compared with RISC cores. Key features include 1.5KB (1.5K x 8) of on-chip Flash for program storage, 128 bytes of RAM for stack and variables, an internal oscillator that eliminates the need for an external crystal, and 5 bidirectional I/O pins shared with peripheral functions. The 8-VDFN Exposed Pad (4x4 mm) package provides a low thermal resistance path through the bottom pad, supporting reliable operation in space-constrained layouts. The 8MHz maximum bus frequency is generated internally, reducing BOM cost and PCB area. The HC08 core supports a compact instruction set with multiple addressing modes, BCD arithmetic, and bit-manipulation instructions that map naturally to embedded control loops. The internal oscillator and on-chip Flash allow bare-minimum designs with no external clock or programming-voltage components, and the exposed-pad package simplifies thermal management for continuous-operation loads. The device targets ultra-low-cost applications where every component on the BOM matters. Typical applications include battery chargers, small motor controllers, simple sensor interfaces, LED drivers, and consumer appliance sub-systems. The wide 3.3V/5V supply range simplifies drop-in replacement of older 5V-only HC08 designs and lets the same firmware serve battery-powered 3.3V products. When designing with this device, allocate the exposed pad to a continuous copper pour on the top or bottom layer to keep junction temperature within rating. Place a 100nF decoupling capacitor within 3mm of the VDD pin and keep high-speed traces away from the oscillator pin to avoid injected noise. This page synthesizes distributor availability, drop-in alternatives from the same HC08 QY/QT family, and practical design notes not consolidated in the manufacturer datasheet.

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MC908QT1ACPE - 8-Bit HC08 1.5KB Flash MCU | NXP | DIP-8
MC908QT1ACPE

MC908QT1ACPE - 8-Bit HC08 1.5KB Flash MCU | NXP | DIP-8

The NXP (formerly Freescale) MC908QT1ACPE is an 8-bit HC08 Q-Family microcontroller unit (MCU) featuring 1.5KB of FLASH program memory, 128 bytes of RAM, and a 6-pin I/O interface, housed in an 8-pin PDIP (PE) package. It runs the CPU08 core at up to 8MHz internal bus speed and operates from a 4.5V to 5.5V supply, targeting cost-sensitive embedded applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU, program and data memory, peripherals, and I/O into one package. The HC08 family belongs to the M68HC08 family of 8-bit CISC microcontrollers with Von Neumann architecture, where program and data share a single bus. Within the broader taxonomy, an MCU sits inside the semiconductor -> integrated circuit -> microcontroller hierarchy, and the HC08Q sub-family is specifically optimized for ultra-small packages and minimal pin count. Key features of the MC908QT1ACPE include 1.5KB of in-application FLASH (good for a few thousand instructions), 128 bytes of RAM, an internal 6-bit timer with PWM capability, low-voltage detect (LVD), power-on reset (POR), and an on-chip oscillator. Five usable I/O pins expose GPIO, keyboard interrupt, and timer channels, while two pins are dedicated to VDD/VSS. The 8MHz CPU08 core provides one instruction per bus cycle, executing most instructions in 1-2 cycles. Architecturally, the HC08Q series uses a streamlined HC08 CPU with a tiny ROM footprint, making it a fit for appliances, toys, simple sensors, and other high-volume cost-driven designs. The device is supported by the Freescale/NXP CodeWarrior HC08 toolchain and programming through the standard MON08 or built-in FLASH routines. Typical applications include low-end consumer electronics, remote controls, simple sensor interfaces, LED driving, and battery-powered appliances where a 32-pin MCU would be over-spec. The PE suffix denotes the 8-pin PDIP package, which simplifies prototyping and hand-soldering. When designing with this part, note that only 5 pins are usable as GPIO; this constrains interface choices. Designers should reserve one pin for the external RESET/keyboard interrupt wake-up path and ensure decoupling is placed within 5mm of the VDD pin. For new designs, consider the pin-compatible HC08Q family members with larger memory (e.g., QT2/QT4) to leave room for firmware growth. This page synthesizes distributor pricing, pin-compatible alternatives, and practical design notes not available on a single NXP, DigiKey, or Mouser product page.

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MC908QT1AMDWE - 8-Bit 8 MHz Flash MCU | NXP
MC908QT1AMDWE

MC908QT1AMDWE - 8-Bit 8 MHz Flash MCU | NXP

The NXP Semiconductors MC908QT1AMDWE is an 8-bit M68HC08-family microcontroller with an 8 MHz clock, 1.5 KB of internal Flash memory, six general-purpose I/O ports, and an 8-pin SOIC package. According to the verified distributor specifications, it is intended for 3.3 V or 5 V operation, with an industrial operating range and a lead-free SOIC-8 package. The M68HC08 is a CISC microcontroller family built around the enhanced CPU08 core and Von Neumann architecture. This places the device in the broader hierarchy of embedded microcontroller, 8-bit MCU, and semiconductor categories. Its compact package and low-cost design are suited to small control systems where code execution, digital I/O, and straightforward embedded control are more important than high-speed data processing or large memory capacity. The MC908QT1AMDWE provides 1.5 KB of Flash memory for program storage, six I/O ports, and an 8 MHz operating speed according to the verified distributor data. The part is identified as CI NITRON SOG by NXP distributor listings. Its Flash architecture supports programmed application execution while the six I/O ports provide interfaces for sensors, switches, indicators, actuators, or other external control signals. The verified specifications describe the device as an 8-bit MCU with CISC/Von Neumann architecture and an enhanced M68HC08 CPU. One distributor listing reports a 4.5 V to 5.5 V supply range, while another identifies the device as a 3.3 V/5 V part. Because the provided sources do not establish a single complete electrical timing and memory table, detailed values beyond the verified fields are not inferred here. Typical applications include simple motor or relay control, keypad and pushbutton interfaces, indicator and LED logic, basic sensor conditioning, and small industrial control modules. The 8-pin SOIC footprint makes it useful where a compact, low-pin-count controller is required. Designers should verify the exact pin functions, oscillator requirements, programming method, and electrical limits in the manufacturer documentation before layout or firmware release. For PCB design, keep the MCU supply decoupling close to its supply pins and confirm the selected operating voltage against the exact datasheet. Firmware timing must be checked against the specified clock configuration. This page combines verified distributor specifications, lifecycle information, application guidance, and source-linked engineering considerations while avoiding unsupported parameter assumptions.

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MC908QT1AMDWER - 8MHz 8-Bit MCU | NXP | Automotive
MC908QT1AMDWER

MC908QT1AMDWER - 8MHz 8-Bit MCU | NXP | Automotive

The NXP Semiconductors MC908QT1AMDWER is an 8-bit HC08 microcontroller operating at up to 8 MHz, with 1.5 KB of internal Flash program memory and six general-purpose I/O pins, housed in an 8-pin SOIC package. It belongs to the low-cost M68HC08 family and uses an enhanced M68HC08 CISC CPU with Von Neumann architecture. The device is identified as automotive temperature grade in the supplied distributor data. A microcontroller is a programmable semiconductor that integrates a CPU, memory, and peripherals into one compact device. The MC908QT1AMDWER provides the basic control and sensing resources required for compact embedded products. Its small package and limited memory footprint suit cost-sensitive applications that need simple sequencing, input reading, output control, and local automation rather than high-performance processing or extensive connectivity. The verified specifications identify a 1,572,864-byte Flash memory, an 8 MHz maximum clock frequency, a 3.3 V or 5 V operating supply description, and eight terminals in an 8-SOIC package. The supplied Microchip USA result further specifies a 1.27 mm terminal pitch and CMOS technology. These details make the part relevant to small controllers, appliance controls, simple industrial interfaces, and embedded automotive subsystems. Technically, the M68HC08 CPU is a complex-instruction-set processor with Von Neumann organization. The architecture can support compact control code and deterministic I/O-oriented firmware. However, the available information does not verify RAM capacity, peripheral details, ADC resources, timer specifications, or electrical limits, so those parameters should not be inferred from the family name. Typical applications include small appliance controls, sensor-conditioning nodes, compact automotive modules, basic motor-control interfaces, and embedded control boards that require an 8-bit MCU. The six verified general-purpose I/O pins provide the physical interface for switches, indicators, sensors, or external logic. Designers should verify the complete manufacturer datasheet before final schematic approval, especially pin multiplexing, reset behavior, clock requirements, memory limits, and automotive qualification. Do not treat this product page as a substitute for the device datasheet or for an AEC-Q100 qualification statement. This page consolidates the supplied distributor and manufacturer-linked references, separates verified facts from unavailable data, and provides engineering-oriented selection guidance for the MC908QT1AMDWER.

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MC908QT2ACDWER - 8-Bit 8MHz MCU, 1.5KB Flash | NXP
MC908QT2ACDWER

MC908QT2ACDWER - 8-Bit 8MHz MCU, 1.5KB Flash | NXP

The NXP Semiconductors MC908QT2ACDWER is an 8-bit HC08 CISC microcontroller operating at up to 8MHz, with 1.5KB of flash program memory, 128 bytes of RAM, five I/O pins, and an 8-pin SOIC package. It supports 3.3V and 5V operation and is designed for compact low-voltage embedded-control applications. A microcontroller is a programmable semiconductor that combines a CPU core, memory, I/O, and embedded control peripherals on one integrated circuit. The HC08 family belongs to the broader 8-bit microcontroller hierarchy, combining straightforward instruction execution with resources suited to appliance controls, industrial modules, and automotive or industrial interface logic. The MC908QT2ACDWER provides 1.5K x 8 flash program memory, 128 x 8 RAM, five I/O pins, and an 8MHz clock rating according to the verified distributor and NXP product information. Its low-voltage operation and integrated control-focused design make it appropriate for designs that do not require the memory, processing capacity, or pin count of a 32-bit microcontroller. The device is identified as an 8-SOIC part with a 0.209-inch, 5.30mm-width package in the verified specifications. Its HC08 8-bit CISC architecture and compact package make it a practical choice for space-constrained embedded products where low cost, deterministic control, and a small pin count are more important than high compute throughput. Typical applications include simple industrial controllers, keypad or switch interfaces, sensor-conditioning systems, automotive and industrial auxiliary controls, and compact consumer products. The NXP product description specifically associates the related MC908QT2ACDWE family with low-voltage operation, an integrated keyboard scanner, and high-current drivers for automotive and industrial applications. Designers should verify the exact pin functions, voltage limits, clock configuration, programming method, and peripheral details against the manufacturer datasheet before layout release. Because the verified source data does not provide complete electrical timing, pin-level, programming-tool, or package drawings, those details remain important qualification items rather than assumptions. This page consolidates verified distributor specifications, the manufacturer product reference, pricing availability, and selection guidance for engineers evaluating the MC908QT2ACDWER.

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MC908QT2ACFQE - 8-Bit HC08 MCU, 1.5KB Flash, 8MHz | NXP
MC908QT2ACFQE

MC908QT2ACFQE - 8-Bit HC08 MCU, 1.5KB Flash, 8MHz | NXP

The NXP MC908QT2ACFQE is an 8-bit HC08-family microcontroller with 1.5KB of Flash program memory, 128 bytes of RAM, and an internal oscillator rated at 8MHz, housed in an 8-pin DFN-EP (4x4 mm) exposed-pad package. It is part of NXP's (formerly Freescale) low-cost QT-series M68HC08 line targeted at cost-sensitive, space-constrained analog-replacement and user-interface designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and programmable I/O on one die; it sits beneath 'microcontroller' and above '8-bit CPU core' in the semiconductor taxonomy. The HC08 core uses a von Neumann architecture with on-chip Flash and is engineered for deterministic, low-power operation in human-interface and consumer products, where an MCU replaces discrete analog timing/control circuitry. Key features of the MC908QT2ACFQE include 1.5KB Flash (1.5K x 8), 128 bytes of RAM, an internal oscillator eliminating the need for an external crystal in many designs, 5 general-purpose I/O pins, and an 8-VDFN exposed-pad package (4x4 mm) that doubles as a thermal path to PCB copper. The part supports in-circuit programming and is optimized for low-power sleep modes and keyboard/touch/wake-up tasks typical of the QT family. The HC08 QT-series architecture pairs a simple accumulator-based CPU with a robust instruction set, integrated brown-out detection, and multiple low-power stop modes. The exposed-pad DFN package provides a low thermal-resistance path that allows the small die to dissipate heat generated by internal blocks such as the ADC reference and IRC oscillator. Typical applications include low-cost consumer appliances, remote-control transmitters, simple user-interface keypads, low-end toys, and any embedded system that needs a small, inexpensive 8-bit controller with internal clocking and minimal external components. It is also widely used as an analog-circuit replacement and as a glue MCU in mixed-signal PCBs. When designing with the MC908QT2ACFQE, take care that the exposed pad is soldered to a sufficient copper area for thermal and electrical grounding, and follow NXP's recommended decoupling of VDD/VDDA with a 0.1uF ceramic cap placed as close as possible to the supply pin. Note that this part is mature; verify long-term availability for new designs against NXP's product longevity program. This page synthesizes distributor pricing, Flash/RAM/IO specifications, drop-in QT-series pin-compatible alternatives, and practical design notes not bundled in the manufacturer datasheet.

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MC908QT2ACPE - 8-Bit HC08 MCU 1.5KB Flash 8-PDIP | NXP
MC908QT2ACPE

MC908QT2ACPE - 8-Bit HC08 MCU 1.5KB Flash 8-PDIP | NXP

The NXP (Freescale Semiconductor) MC908QT2ACPE is an 8-bit microcontroller from the M68HC08 family, featuring a 1.5KB (1.5K x 8) FLASH program memory, an 8MHz internal bus clock, and an 8-pin PDIP (0.300 inch, 7.62mm) through-hole package. A microcontroller (MCU) is a complete computing system integrated on a single chip, combining a CPU core, program memory, data memory, and peripheral functions such as timers, I/O ports, and oscillators. The 8-bit MCU family sits at the entry level of the semiconductor device hierarchy and remains the dominant architecture for simple, cost-sensitive embedded control tasks where a 32-bit processor would be unnecessary overhead. The HC08 core is the successor to the industry-standard 68HC05 and is widely deployed in appliance, automotive, and industrial control. Key features of the MC908QT2ACPE include the low-cost M68HC08 CPU core with object code compatibility to the 68HC05, on-chip FLASH program memory for in-circuit reprogramming, up to 8MHz operation for fast 8-bit control loops, and an ultra-compact 8-pin footprint that minimizes board area. On-chip oscillator options reduce external component count, and I/O pins provide direct drive for LEDs and small loads. Technically, the QT2 variant belongs to NXP's Nitron family of entry-level 8-pin microcontrollers, which pairs the HC08 CPU with analog peripherals and a FLASH monitor ROM that enables flash programming over a single-wire interface, simplifying field upgrades without a dedicated programmer socket. Typical applications include small appliance control, battery chargers, LED lighting control, sensor-based toys, and low-pin-count industrial sub-systems where a single 8-pin MCU replaces multiple discrete logic devices. Design consideration: verify availability and lifecycle status before new designs; this HC08-family part is mature, so plan a second-source or migration path within the Nitron/Kinetis roadmap. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MC908QT4ACDWE - 8-bit HC08 MCU 4KB Flash 8MHz SOIC-8 | NXP
MC908QT4ACDWE

MC908QT4ACDWE - 8-bit HC08 MCU 4KB Flash 8MHz SOIC-8 | NXP

The NXP Semiconductors MC908QT4ACDWE is an 8-bit HC08QT-series microcontroller delivering 4 KB of on-chip flash memory, 128 bytes of RAM, and a maximum CPU clock of 8 MHz in an 8-pin SOIC (DWE) package. It integrates an 8-channel 8-bit ADC, a 16-bit timer with input-capture/output-compare/PWM, an internal oscillator, and low-power STOP and WAIT modes, all on a single chip designed for cost-sensitive embedded control. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path. It typically integrates a CPU core, non-volatile program memory (Flash or ROM), volatile working memory (RAM), one or more timers, general-purpose I/O, and a selection of analog and digital peripherals. Within the broader taxonomy, an MCU is a member of the microcontroller family, which itself belongs to embedded processors, which fall under the larger category of microcontrollers and microprocessors, ultimately classified as integrated circuits and semiconductors. The HC08 family from NXP is a long-established CISC 8-bit architecture valued for its compact instruction set, deterministic behavior, and very low active and standby current, making it well suited to battery-powered and always-on designs. Key features include 4 KB (4K x 8) of flash program memory, 128 bytes of RAM, an internal clock generator with optional external crystal support, an 8-bit successive-approximation analog-to-digital converter with up to 8 input channels, a 16-bit timer with capture/compare/PWM, and an asynchronous serial communications interface (SCI). The HC08QT sub-series is the smallest pin-count derivative of the HC08 family, optimizing the die for space-constrained applications. The MC908QT4ACDWE uses the M68HC08 CPU core with a von Neumann-style address and data bus architecture. Its peripherals are clock-gated so unused modules add nothing to quiescent current, while an on-chip voltage regulator keeps the core logic supply stable across the 3 V to 5.5 V operating range. The integrated analog-to-digital converter performs conversions in approximately 17 ADC clock cycles, giving a typical conversion time near 17 microseconds at the maximum 1 MHz ADC bus clock. Typical applications include low-cost consumer appliances, white goods user interfaces, battery-powered sensors, simple motor or solenoid control, and small IoT edge nodes. In each case the combination of flash memory, on-chip ADC, and integrated timers reduces the bill of materials while retaining firmware flexibility. When designing with this part, place a 100 nF decoupling capacitor as close as possible to the VDD pin, ensure the reset pin is held low until the supply has stabilized, and verify that the chosen crystal or resonator meets the HC08 oscillator's load-capacitance requirements. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet.

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MC908QT4ACPE - 8-Bit HC08 MCU 4KB Flash 8MHz 8-PDIP | NXP
MC908QT4ACPE

MC908QT4ACPE - 8-Bit HC08 MCU 4KB Flash 8MHz 8-PDIP | NXP

The NXP MC908QT4ACPE is an 8-bit HC08 family microcontroller integrating 4KB of FLASH program memory, 128 bytes of RAM, and a CPU core capable of 8 MHz internal bus operation, all housed in an 8-pin PDIP through-hole package. The device operates from a 3.0 V to 5.5 V supply (note: the verified data references a 4.5 V to 5.5 V variant specification, see _validation_note) and is offered as a compact, low-pin-count solution for cost-sensitive embedded applications. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (FLASH/ROM), volatile data memory (RAM), and programmable I/O peripherals on a single die. Within the taxonomy of embedded processors, the HC08 belongs to the CISC (Complex Instruction Set Computer) family of 8-bit microcontrollers, sitting beneath 16-bit and 32-bit MCUs in raw computational power but dominating in unit cost, deterministic interrupt latency, and ease of learning for legacy and hobbyist designs. The MC908QT4ACPE specifically targets applications requiring minimal board space, low power, and a small instruction footprint. Key features of the MC908QT4ACPE include a 6-channel general-purpose I/O set (5 bidirectional plus 1 input-only per the QT4 family definition), an on-chip 8 MHz internal oscillator that eliminates the need for an external crystal in many designs, an integrated timer/PWM module, and FLASH memory that can be reprogrammed in-circuit via the standard HC08 background debug mode (BDM). The PDIP-8 package supports breadboard prototyping and hand-soldered rework. Architecturally, the MC908QT4ACPE uses the M68HC08 instruction set, a refinement of the M68HC05 architecture that adds a multiply (MUL) instruction and an X-indexed stack pointer. The HC08 core uses a von Neumann memory map, allowing code and data to share a single address space, simplifying C compiler code generation. With 4 KB of FLASH and 128 B of RAM, designers must write tightly-sized code; this is the canonical positioning of the part. Typical applications include low-end consumer appliances, white-goods user-interface controllers, simple LED lighting drivers, security alarm keypads, battery chargers, and educational/hobbyist microcontroller platforms. Its 8-pin footprint also makes it suitable as a drop-in replacement for older HC05 designs migrating to FLASH-based program memory. When designing with this MCU, designers must respect the 5 V-tolerant I/O rating on the lower-voltage variants and ensure the BDM interface pins (BKGD, RESET) are accessible for in-system programming. For new designs, consider the wider-pin-count QY/QT family variants or the modern S08 family for additional peripherals. This page synthesizes distributor pricing, parametric equivalents, drop-in alternatives and practical design guidance not consolidated in the original manufacturer datasheet, allowing engineers to quickly evaluate the part for new or legacy designs.

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MC908QT4VDWR2 - 8-Bit 8MHz 4KB Flash MCU | NXP
MC908QT4VDWR2

MC908QT4VDWR2 - 8-Bit 8MHz 4KB Flash MCU | NXP

The NXP Semiconductors MC908QT4VDWR2 is an 8-bit HC08 microcontroller operating at 8 MHz, with 4 KB of program flash and an 8-SOIC package. Its verified distributor description identifies it as the MC908QT4VDWR2 HC08 MCU with 8-bit processing, 8 MHz operation, 4 KB flash, and an 8-SO package. The device is positioned for compact embedded control systems requiring an economical 8-bit architecture and low-power mixed-signal control. A microcontroller is a semiconductor device that integrates a processor core, memory, input/output peripherals, and control logic on one package. The HC08 family belongs to the broader embedded-controller hierarchy: microcontroller, embedded processor, semiconductor, and electronic component. MC908QT4VDWR2 is intended for applications where a small controller can manage digital inputs, timers, communications, and analog-related functions within a constrained board area. The verified data identifies the principal engineering values as an 8-bit architecture, 8 MHz clock, and 4 KB flash memory. The 8-SO package provides an eight-lead surface-mount format, while the “DWR2” ordering suffix identifies the manufacturer’s package and ordering configuration. Additional electrical details such as RAM, ADC channels, timers, I/O count, voltage limits, and operating temperature were not supplied in the verified data and must be confirmed from the manufacturer datasheet before design release. Typical uses include small industrial controllers, keypad interfaces, sensor-conditioning controllers, simple motor or relay control, and embedded consumer modules. Because the available information does not establish the complete peripheral map, firmware developers should verify peripheral availability, interrupt behavior, memory organization, and supply limits against the MC908QT4 family documentation. For a new PCB, use the manufacturer’s package drawing and land pattern rather than estimating SOIC dimensions from generic search results. Confirm the voltage domain, oscillator arrangement, programming method, reset requirements, and exposed-pin assignments before committing a schematic. The listed 8-SO package is also listed by distributors as 8-SOIC, but the exact mechanical drawing should be checked. This page combines the verified distributor specifications, official datasheet link, package classification, sourcing information, and engineering caveats for MC908QT4VDWR2. It intentionally distinguishes documented values from parameters requiring direct datasheet confirmation rather than estimating missing electrical or peripheral specifications.

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MC908QY1ACDTE - 8-bit HC08 MCU 1.5KB Flash 16-TSSOP | NXP
MC908QY1ACDTE

MC908QY1ACDTE - 8-bit HC08 MCU 1.5KB Flash 16-TSSOP | NXP

The NXP MC908QY1ACDTE is an 8-bit HC08 Q-family microcontroller with 1.5KB of Flash program memory, 128 bytes of RAM, and 14 general-purpose I/O lines, housed in a 16-pin TSSOP package. It operates from a 4.5V to 5.5V supply and runs the HC08 CPU core at a 32 MHz internal bus rate (8 MHz external oscillator source), targeting cost-sensitive embedded control applications. What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash/ROM), volatile working memory (RAM), peripherals, and digital I/O on one die. The HC08 family belongs to the broader category of CISC (Complex Instruction Set Computer) microcontrollers with a Von Neumann architecture, meaning program and data share the same bus and address space. Within NXP's portfolio, HC08 sits below the HC(S)12 and ColdFire families as a low-cost, low-pin-count solution for appliance, motor-control, and human-interface designs. Key features of the MC908QY1ACDTE include: 1.5KB on-chip Flash, 128 bytes of RAM, a 4-channel 8-bit ADC, two 16-bit timers, a keyboard interrupt module with wake-up capability, a serial communications interface (SCI), and an internal clock generator that supports an external crystal or resonator. The 16-pin TSSOP provides a compact surface-mount footprint with 14 usable I/O pins after power and ground are allocated. The HC08 Q-family uses a 68HC08 CPU core with a 16-bit stack pointer, index register, and condition-code register, plus an enhanced instruction set with bit-manipulation and multiply instructions. Its single-wire background debug mode (BDM) enables in-circuit programming and non-intrusive debugging without consuming an I/O pin. Typical applications include low-end consumer appliances, white-goods control boards, battery chargers, simple sensor interfaces, and human-interface panels where cost and PCB area dominate over raw computational throughput. When designing, reserve one pin for BDM debugging and ensure decoupling per NXP HC08 hardware design guidelines. The 4.5V-5.5V supply range precludes direct 3.3V operation without a regulator. This page synthesizes verified distributor pricing, drop-in alternatives in the same TSSOP-16 footprint, and practical HC08 design notes not collated in the original Freescale/NXP datasheet.

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MC908QY1AMDWE - 8-Bit 8MHz 1.5KB Flash MCU | NXP
MC908QY1AMDWE

MC908QY1AMDWE - 8-Bit 8MHz 1.5KB Flash MCU | NXP

The NXP MC908QY1AMDWE is an 8-bit HC08 CISC microcontroller with an 8 MHz maximum clock, 1.5 KB flash program memory and a 16-pin SOIC package. The verified distributor listing identifies the device for 3.3 V and 5 V operation, while another source specifies a 4.5 V to 5.5 V supply range for this grade; designers should therefore resolve the grade-specific limits against the manufacturer datasheet before release. A microcontroller is an integrated circuit that executes embedded control software from nonvolatile program memory and coordinates digital inputs, outputs, timers and communication interfaces. The MC908QY1AMDWE belongs to the M68HC08 family, whose enhanced CPU08 core uses a CISC architecture and Von Neumann organization. This places it in the MCU branch of embedded semiconductors, where software compatibility, memory size and peripheral integration matter more than the processing capacity associated with application processors. The part combines 1.5 KB of flash with 14 I/O ports in a compact 16-pin surface-mount package. Its 8 MHz CPU frequency is suitable for compact embedded control tasks that do not require high-bandwidth computation. The DWE package suffix is represented in verified marketplace data as a 16-SOIC offering, while additional secondary data also describes a 0.65 mm-pitch TSSOP-16 variant; the exact mechanical drawing must be checked before footprint approval. Typical HC08Q roles include simple keypad and display controllers, low-speed serial-interface nodes, small industrial controllers and cost-sensitive products that need flash programmability. Because the MCU is an older M68HC08 design, engineering review should confirm current software-tool support, programmer availability, errata status and the NXP lifecycle position before committing a new design. PCB implementation should reserve all 16 pins and verify the manufacturer symbol against the ordered package. Decoupling, programming-test-point access, oscillator components and unused-pin treatment must follow the applicable hardware manual. Firmware replacement also requires CPU, memory-map and peripheral compatibility; a similar package alone does not prove that a candidate is a drop-in substitute. This page consolidates verified distributor specifications, lifecycle information, sourcing data and engineering cautions. It distinguishes explicitly reported values from unresolved details so procurement and design teams can evaluate the MC908QY1AMDWE without assuming unverified electrical, timing or mechanical parameters.

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MC908QY1CDTER - 8-Bit HC08 MCU, 1.5KB Flash, 16-TSSOP | NXP
MC908QY1CDTER

MC908QY1CDTER - 8-Bit HC08 MCU, 1.5KB Flash, 16-TSSOP | NXP

The NXP Semiconductors MC908QY1CDTER is an 8-bit HC08-family microcontroller IC with 1.5KB of FLASH program memory, supplied in a 16-pin TSSOP package rated for the industrial temperature range. It is part of NXP's legacy M68HC08 low-cost, high-performance MCU family built on a CISC Von Neumann architecture. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/FLASH), data memory (RAM), and a range of peripheral I/O into one package. The HC08 is NXP/Freescale's 8-bit CISC architecture targeted at cost-sensitive embedded applications where deterministic behavior, low power, and compact code density matter more than raw throughput. Within the broader taxonomy, the MC908QY1CDTER is a member of the HC08Q sub-family, sitting below higher-tier 16-bit and 32-bit MCUs but above simple logic controllers in capability. Key features of the MC908QY1CDTER include 1.5KB of in-system programmable FLASH, 128 bytes of RAM, 14 general-purpose I/O pins, an internal 32 MHz oscillator (with a 5V-tolerant bus interface), and a 5V (4.5V to 5.5V) supply range. The TSSOP-16 footprint provides a slim 4.40 mm body width suitable for space-constrained PCB layouts common in white goods, sensor interfaces, and low-end appliance controllers. As an NXP "Nitron" HC08 device, it is designed for low-power, low-noise analog-friendly embedded designs. Architecturally, the MC908QY1CDTER uses the M68HC08 enhanced CPU core with BDM (Background Debug Mode) for in-circuit programming and debugging. The device supports a wide supply tolerance to accommodate regulated 5V rails and offers mask-ROM/FLASH variants within the same pinout for OEM cost-down paths. Common peripherals shared across the QY series include timers, an SCI (serial communications interface), and basic input-capture/output-compare channels. Typical applications are low-cost consumer appliances, battery chargers, industrial sensor signal conditioning front-ends, simple motor-control loop controllers, and replacement of legacy HC05/HC11 designs. The 5V supply tolerance suits automotive subsystems operating at 5V nominal, low-end industrial controllers, and hobby electronics. When designing with this MCU, ensure the decoupling capacitor is placed as close as possible to the VDD/VSS pair and use the BDM interface for FLASH programming rather than legacy monitor-mode code. The 16-TSSOP package offers a 0.65 mm pin pitch; consider solder joint inspection and stencil aperture tuning during PCB assembly. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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MC908QY2ACDTE - 8-Bit HC08 MCU, 1.5KB Flash, 16-TSSOP | NXP
MC908QY2ACDTE

MC908QY2ACDTE - 8-Bit HC08 MCU, 1.5KB Flash, 16-TSSOP | NXP

The NXP MC908QY2ACDTE is an 8-bit HC08 family microcontroller (originally from Freescale Semiconductor, now NXP) with 1.5KB of FLASH program memory, 128 bytes of RAM, and 13 general-purpose I/O pins, housed in a 16-pin TSSOP package. The device integrates a CPU08 core running at up to 8 MHz bus frequency, and supports both 3.3V and 5V operation, making it suitable for low-cost, high-performance embedded control designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (FLASH for program storage and RAM for working data), peripherals, and I/O on one die. The HC08 family uses a CISC (Complex Instruction Set Computer) architecture with a Von Neumann memory map and the M68HC08 CPU core. Microcontrollers sit in the broader hierarchy of embedded processors and are the workhorses of consumer, industrial, and automotive electronics, handling tasks from button debouncing to motor control. Key features of the MC908QY2ACDTE include 1.5KB on-chip FLASH, 128 bytes of RAM, an 8 MHz internal bus, a 5-channel 10-bit ADC, a 16-bit timer with capture/compare/PWM, and an asynchronous serial communications interface (SCI). The device supports in-circuit programming via the standard HC08 background debug mode (BDM) interface, allowing flash reprogramming without an external programmer. Operating voltage ranges from 2.7V to 5.5V cover both 3.3V and 5V rails. The architecture is optimized for cost-sensitive applications where the M68HC08 instruction set, mature toolchain support, and small footprint outweigh the need for higher clock speeds or larger memory. The 16-TSSOP package is industry-standard, enabling hand-solderable prototypes and high-volume SMT assembly. Hardware multiplication is not supported on this core, but bit-manipulation instructions are extensive. Typical applications include small appliance control, simple sensor interfaces, LED driving, low-end remote controls, and battery-powered consumer devices where low cost and small package footprint are paramount. The 5-channel ADC is sufficient for basic analog monitoring (temperature, battery voltage, light levels), and the PWM output can drive LEDs, buzzers, or small DC loads. When designing with this part, note that the part is in NXP End-of-Life status per the official NXP product page. Designers should evaluate the MC9S08 family or the S08QE series as modern replacements. Ensure BDM pin connections follow HC08 conventions, and verify in-system programming voltage timing against the datasheet. This page synthesizes distributor pricing, drop-in alternatives, lifecycle status, and practical design notes not found in the bare manufacturer datasheet, providing a single source of truth for engineers evaluating MC908QY2ACDTE.

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MC908QY2ACDWER - 8-bit HC08 MCU, 1.5KB Flash, 8MHz | NXP
MC908QY2ACDWER

MC908QY2ACDWER - 8-bit HC08 MCU, 1.5KB Flash, 8MHz | NXP

The NXP MC908QY2ACDWER is an 8-bit HC08 (M68HC08) microcontroller with 1.5KB (1.5K x 8) FLASH program memory, an 8MHz maximum internal bus clock, and 14 general-purpose I/O lines, housed in a 16-pin SOIC (0.295in, 7.50mm width) package supplied on tape and reel. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a processor core, program and data memory, and peripherals such as timers, ADCs, and I/O ports on one die. Within the power management and embedded control hierarchy, the M68HC08 family sits in the low-cost, high-performance class of 8-bit CISC MCUs, descending from the classic 68HC05 architecture and targeting cost-sensitive embedded control nodes. Key features include the enhanced CPU08 CISC core with Von Neumann architecture, 1.5KB on-chip FLASH memory with in-circuit reprogrammability, an on-chip analog-to-digital converter (ADC), and PWM timer channels. The part operates from a 3.3V or 5V supply and carries an industrial temperature grade, making it robust for electrically noisy environments. Architecturally, the MC908QY2 belongs to the HC08Q Family of the M68HC08 line, which uses the CPU08 core across a range of memory sizes and package options. This CMOS device keeps standby and run currents low while the FLASH memory eliminates the OTP/windowed-erase constraints of older 8-bit MCUs, simplifying firmware updates in the field. Typical applications include small appliance control, low-cost motor and LED control using the PWM channels, battery chargers, sensor signal conditioning with the ADC, and simple industrial timing and sequencing tasks where 1.5KB of code space and 14 I/O lines are sufficient. Design consideration: the QY2 variant has the smallest FLASH option in the QY family; verify code-size headroom early, since migrating to a larger-memory family member (QY4/QY8) in the same SOIC-16 footprint is the usual upgrade path. This page synthesizes distributor pricing, drop-in alternatives, comparison tables, and practical design notes not found in the manufacturer datasheet.

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MC908QY2ACPE - 8-bit HC08 MCU, 1.5KB Flash, 16-DIP | NXP
MC908QY2ACPE

MC908QY2ACPE - 8-bit HC08 MCU, 1.5KB Flash, 16-DIP | NXP

The NXP MC908QY2ACPE is an 8-bit HC08 family microcontroller with 1.5 KB of Flash program memory and 128 bytes of RAM, operating at up to 8 MHz in a 16-pin PDIP (0.300 inch, 7.62 mm) through-hole package. It is part of the legacy MC908QY/QY2/QY4 sub-family designed for low-cost, general-purpose embedded control with a minimal external component count. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and programmable I/O peripherals onto one IC. The MC908QY2ACPE belongs to the 8-bit segment of the MCU taxonomy: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. The 8-bit HC08 core executes most instructions in 2 bus cycles and provides a deterministic Harvard-style architecture suited to motor, lighting, and human-interface control loops. Key specifications of the MC908QY2ACPE include 13 general-purpose I/O pins, an internal clock generator (no external crystal required for many designs), an on-chip 10-bit ADC, timers, and a low-voltage detection module. The wide operating voltage range allows direct connection to common 3 V and 5 V rails, and the 16-pin PDIP package supports prototyping and industrial through-hole assemblies where rework is required. The HC08 core uses a unified address space for Flash and registers, with a CPU08 instruction set that is object-code compatible with the older M68HC05 family. Peripherals include a 16-bit timer with input capture/output compare, an 8-bit keyboard interrupt module, and an analog-to-digital converter suitable for sensor signal acquisition. Typical applications of the MC908QY2ACPE include low-cost consumer appliances, white-goods control boards, sensor signal conditioning, simple motor drivers, and hobbyist/educational platforms. Its small memory footprint and on-chip peripherals make it well suited to replace discrete logic and timer circuits in cost-sensitive designs. When designing with this part, note that the Flash memory is one-time programmable per device configuration (the 'A' part suffix indicates a specific mask/revision set) and that software code compatibility must be verified for migration between -QY1 / -QY2 / -QY4 variants. EOL risk should be checked through the manufacturer before committing to long production runs. This page synthesizes distributor pricing, technical specifications, design notes and cross-reference alternatives not found in the manufacturer datasheet alone, providing a decision-grade summary for sourcing engineers.

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MC908QY4ACDTE - 8-bit HC08 MCU 4KB Flash 16-TSSOP | NXP
MC908QY4ACDTE

MC908QY4ACDTE - 8-bit HC08 MCU 4KB Flash 16-TSSOP | NXP

The NXP Semiconductors MC908QY4ACDTE is a low-cost, high-performance 8-bit microcontroller from the M68HC08 family with 4KB of Flash memory, 128 bytes of RAM, and a 16-pin TSSOP package. Built on the enhanced M68HC08 central processor unit with a Von Neumann architecture, it operates at up to 32 MHz internal bus clock and supports supply voltages from 4.5V to 5.5V, providing 14 general-purpose I/O pins and an on-chip 10-bit analog-to-digital converter. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripheral interfaces. The M68HC08 family is a Complex Instruction Set Computer (CISC) architecture designed for cost-sensitive embedded control. Within that taxonomy, the HC08Q sub-family targets ultra-low-cost applications where minimal pin count (8 or 16 pins) and small Flash footprint (1KB to 4KB) are critical. This hierarchical context - MCU -> 8-bit MCU -> CISC MCU -> M68HC08 -> HC08Q - places the MC908QY4ACDTE at the entry-level end of NXP's automotive-grade 8-bit portfolio. Key features include a 4KB Flash program memory with in-circuit programming capability, an internal oscillator, hardware multiply/divide, a serial communications interface (SCI), and an analog-to-digital converter (ADC) with up to 10 channels. The device also integrates a timer interface module (TIM) for PWM and input-capture tasks, a keyboard interrupt module (KBI), and a low-power stop and wait mode that reduces quiescent consumption to microampere levels. The 16-pin TSSOP (0.65 mm pitch) footprint allows drop-in compatibility with the broader HC08Q family. The architecture pairs a 16-bit index register and 8-bit accumulator with an HCF (high-level C-friendly) instruction set, enabling efficient code density and straightforward C compiler support. The integrated analog comparator and bandgap reference simplify analog front-end design, while the built-in security feature protects Flash contents from unauthorized read-out - a common requirement in cost-sensitive industrial systems. Typical applications include appliance control (white goods, HVAC), automotive body electronics (window lifters, mirror controllers, seat adjusters), battery chargers, and consumer products such as toys, remote controls, and small motor controllers. The wide 5V supply range also suits industrial sensor interfaces. When designing with this device, ensure adequate decoupling with a 100nF ceramic capacitor close to the VDD pin and consider the I/O source/sink current ratings when driving relays or LEDs directly. For new designs, evaluate whether the M68HC08 family is still in active production, as NXP has transitioned many customers to the S08 and Kinetis families. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on standalone manufacturer or distributor pages, providing an engineering decision view beyond raw spec repetition.

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MC908QY4ACDWE - 8-Bit 8MHz 4KB Flash MCU | NXP
MC908QY4ACDWE

MC908QY4ACDWE - 8-Bit 8MHz 4KB Flash MCU | NXP

The NXP Semiconductors MC908QY4ACDWE is an 8-bit HC08Q microcontroller with an 8 MHz enhanced M68HC08 CPU, 4 KB of Flash program memory, and a 16-pin SOIC package. It is designed for compact embedded-control systems that require deterministic CISC execution, modest program storage, and integrated peripherals without the complexity of a higher-bit MCU. An HC08Q microcontroller is part of the M68HC08 family of 8-bit microcontrollers, which uses a Von Neumann architecture and an enhanced M68HC08 central processing unit. In the broader electronics hierarchy, it is a microcontroller, embedded processor, and embedded-control IC rather than a general-purpose microprocessor or application processor. The architecture is suited to appliance controls, small motor systems, sensor interfaces, and embedded products where an 8 MHz clock and 4 KB Flash footprint are sufficient. Verified product information identifies a 4K × 8 Flash configuration, 8 MHz operating speed, 8-bit core, 128-byte EEPROM emulation, and a 16-pin SOIC package. The supplied comparison data also indicates operation at either 3.3 V or 5 V, 13 I/O, and family features including PWM, low-voltage detection, and power-on reset. These details make the MC908QY4ACDWE appropriate for low-cost controls requiring compact software and hardware integration. The device belongs to the HC08Q family, described by NXP as a low-cost, high-performance member of the M68HC08 family. The CPU08 architecture uses CISC instruction processing and a Von Neumann memory organization. This combination supports embedded firmware development for compact control loops, while the Flash memory allows application code to be programmed and updated according to the device's programming requirements. Typical embedded applications include small appliance controllers, sensor-conditioning nodes, compact fan and motor controls, keypad interfaces, LED status systems, and low-cost industrial control modules. The 16-pin SOIC package is useful where a through-hole assembly process and moderate external pin count are preferred over a very small leadless package. For a new design, verify voltage limits, timer resources, oscillator options, programming mode, and peripheral pin mapping against the manufacturer datasheet before committing the layout. Existing HC08 designs should also confirm pin-level compatibility and software timing. Because the NXP product page identifies the part as End of Life, long-term production planning should account for lifecycle risk and qualified sourcing. This page consolidates verified distributor and manufacturer information, distinguishes the device's confirmed architecture and package from unavailable specifications, and provides selection guidance for engineers evaluating the MC908QY4ACDWE or searching for a validated replacement.

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MC908QY4ACPE - HC08 8-Bit MCU 4KB Flash 8MHz | NXP | DIP-16
MC908QY4ACPE

MC908QY4ACPE - HC08 8-Bit MCU 4KB Flash 8MHz | NXP | DIP-16

The NXP MC908QY4ACPE is an 8-bit HC08-family microcontroller (MCU) featuring 4KB of Flash program memory, a CPU08 core, and an internal bus clock of up to 8 MHz, housed in a 16-pin PDIP through-hole package. It belongs to the low-cost, high-performance M68HC08 Family of CISC microcontrollers with a Von Neumann architecture, originally developed by Freescale Semiconductor (now NXP) and designed for cost-sensitive embedded control. An 8-bit microcontroller is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and peripheral I/O on one die. The M68HC08 family is a Complex Instruction Set Computer (CISC) architecture with a Von Neumann (shared instruction/data bus) topology, and the CPU08 central processor used in this part is an enhanced successor to the original HC05/HC11 cores, adding stack-based instructions, a Y index register, and a background debug mode (BDM). The MC908QY4ACPE sits in the HC908Q sub-family, which is the smallest pin-count member of HC08, optimized for low-cost appliance, sensor, and control applications where a few bytes of analog and digital I/O suffice. Key features include 4KB (4K x 8) of on-chip Flash, 128 bytes of RAM, 14 general-purpose I/O pins, an internal 8 MHz bus clock derived from an on-chip oscillator, multiple timer channels, and a 5-channel 8-bit ADC. The device operates from 4.5V to 5.5V, draws low quiescent current in wait and stop modes, and includes a built-in M68HC08 instruction-compatible BDM interface for in-circuit debug and Flash programming. Compared to legacy HC05 parts, the HC08Q family adds USB-friendly Flash, more accurate timers, and a smaller footprint option. Typical applications include low-cost appliance control, sensor signal conditioning, white-goods user interfaces, smart battery chargers, simple motor-control loops (BLDC/PMSM auxiliary), IR remote receiver ICs, and general-purpose 8-bit control replacement boards. The 14-pin I/O budget is sufficient for keypad-scanning, LED-driving, and PWM actuator outputs in space-constrained designs. When using this part, observe the 4.5V-5.5V supply window and design decoupling around the internal bus clock to avoid spurious resets. The BDM (background debug mode) interface enables Flash programming and debug without an in-circuit emulator, significantly reducing NRE and tool costs for low-volume production.

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MC908QY4AMDTE - 8-bit 8MHz HC08 4KB Flash MCU 16-TSSOP | NXP
MC908QY4AMDTE

MC908QY4AMDTE - 8-bit 8MHz HC08 4KB Flash MCU 16-TSSOP | NXP

The NXP MC908QY4AMDTE is an 8-bit microcontroller from the M68HC08 family in a 16-pin TSSOP package with an extended operating temperature range. It integrates 4KB of on-chip Flash program memory, runs at a 8 MHz internal bus frequency, and is built around the CPU08 core, which features a Von Neumann architecture with a 16-bit stack pointer and 64-byte index/data registers tailored for low-cost embedded control. The HC08Q sub-family variants provide on-chip ADC, timers, and a serial communication interface suitable for sensor-driven white goods, automotive body electronics, and simple motor control. Operating voltage is 5V nominal with dual 3.3V/5V tolerance, drawing under 20mA in active mode. The MCU is offered in -40C to +125C industrial grade, packaged in a 16-TSSOP 4.40mm body width surface-mount form factor suitable for compact PCB designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, and a configurable set of peripherals (timers, ADC, communication ports) into one device. Microcontrollers sit at the bottom of the embedded hierarchy: MCU -> microcontroller -> embedded controller -> semiconductor IC. The MC908QY4 series targets low-cost, pin-constrained applications where analog integration and Flash-based code storage matter more than raw compute, contrasting with 32-bit Cortex-M parts when deterministic 8-bit simplicity is acceptable. Key features include on-chip FLASH program memory with security, 128 bytes of RAM (typical), 13 GPIO pins, an 8-channel 10-bit ADC, a 16-bit timer with two compare registers, an SCI (Serial Communications Interface) for UART communication, and a built-in oscillator with optional trimmable internal clock source. The integrated ADC with 8 input channels eliminates external signal conditioning in many sensor-interface designs, and the 16-bit timer provides accurate pulse-width modulation (PWM) generation for motor-speed control and lighting drivers. The CPU08 core uses a CISC (Complex Instruction Set Computer) architecture supporting a rich set of addressing modes and bit manipulation instructions that are well-suited to legacy 8-bit code migration. The integrated FLASH supports in-system programming via the MON08 or background debug mode (BDM) for in-circuit firmware update. The HC08Q family shares common peripherals across the family, simplifying code reuse between derivatives with larger memory footprints. Typical applications include white-goods control (washing machines, dishwashers, microwave ovens), automotive body controllers (mirror adjusters, simple lighting control, fan drivers), industrial timer/counter modules, remote-control transmitters, and low-end sensor signal conditioning. The wide operating temperature range (-40C to +125C) supports automotive underhood and outdoor industrial environments. When designing with this device, ensure the BDM interface is brought out to a header or test point for in-circuit firmware update. Use the internal oscillator option to reduce BOM cost in cost-sensitive designs, but switch to an external crystal only when serial-communication baud-rate accuracy demands it. Verify the latest NXP product-change notifications before locking the bill of materials, as the family is in end-of-life transition. This page synthesizes distributor pricing, pin-compatible drop-in alternatives from the HC08 family, and practical design notes not found in the manufacturer datasheet.

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