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NXP Semiconductors

MC908KX2MDWE - 8-Bit 8MHz MCU, 2KB Flash | NXP

N.º da peça: MC908KX2MDWE ✗ Fim de vida
Em estoque Enviado em 1 a 3 dias úteis
3.3 V or 5 V Vdss 16-SOIC, 0.295 inch / 7.50 mm width Package 8 MHz Speed 2 KB flash organized as 2K x 8 Memory
A partir de $6.661 USD / unidade
MOQ: 1 |
Preço atualizado: 2026-10-21
Preços por volume
Qtd. Preço unitário Total
1 $6.661 $6,66
10 $6.661 $66,61
100 $6.661 $666,10
500 $6.661 $3.330,50
1.000 $6.661 $6.661,00
ℹ️ Todos os preços estão em USD

MC908KX2MDWE Visão geral

NXP Semiconductors MC908KX2MDWE is an 8-bit HC08 microcontroller operating at 8 MHz, with 2 KB of flash program memory and a 16-SOIC package. It also supports operation from 3.3 V or 5 V, according to the verified distributor and datasheet-index results. The device belongs to the HC08K family, a low-cost branch of the M68HC08 architecture using the CPU08 processor core.

A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one device. The MC908KX2MDWE occupies the MCU, embedded-controller, and semiconductor levels of the product hierarchy. Its role is to execute embedded control logic from flash memory while providing the mixed-signal and timing resources required by compact control systems.

The verified listing identifies the MCU as an 8-bit device with an 8 MHz clock, 2 KB organized as 2K by 8 flash, and a 16-pin SOIC package. The product description also identifies the 908KX2 device and EPP configuration. Exact RAM capacity, pin names, peripheral inventory, voltage limits, current consumption, and programming interface details were not supplied in the verified dataset and therefore must be confirmed in the manufacturer documentation before design release.

MC908KX2MDWE uses the high-performance M68HC08 architecture, which the verified description states is object-code upward compatible with M6805, M146805, and M68HC05 families. This compatibility information can assist engineers evaluating legacy firmware, although migration still requires verification of electrical timing, memory maps, peripherals, and tool support. The part is identified as end of life on the NXP product page.

Typical legacy embedded uses include appliance control, simple sequencing, compact industrial interfaces, and embedded systems that retain an M68HC08 software base. Its 8 MHz CPU and 2 KB flash suit applications with modest control complexity rather than graphics-intensive, high-connectivity, or real-time signal-processing workloads.

Designers should verify the complete pinout, oscillator options, reset behavior, programming signals, and peripheral electrical limits from the manufacturer datasheet. Because the device is end of life, production continuity, firmware tool availability, and last-time-buy planning require direct confirmation with NXP or an authorized source.

This page consolidates verified manufacturer and distributor information, lifecycle status, sourcing context, and design cautions for the MC908KX2MDWE. It distinguishes documented facts from missing electrical details and avoids presenting unverified substitute parts as drop-in replacements.

Alternativas drop-in para MC908KX2MDWE — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.

Variantes desta série

Modelos da mesma série compatíveis como drop-in com MC908KX2MDWE (mesmo formato e footprint) — diferindo em Supply Voltage.

NXP Semiconductors
Supply Voltage: 3.3 V / 5 V
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MC908KX2MDWE Classificações máximas e características elétricas

Device Type 8-bit microcontroller
CPU Architecture M68HC08 with CPU08 core
Frequência máxima de clock 8 MHz
Program Memory 2 KB flash organized as 2K x 8
Tensão de alimentação 3.3 V or 5 V
Encapsulamento 16-SOIC, 0.295 inch / 7.50 mm width
Tipo de montagem Surface mount
Product Configuration 908KX2 with EPP
Status do ciclo de vida End of life
Object-Code Compatibility Upward-compatible with M6805, M146805, and M68HC05 families
Largura do barramento de dados 8 bit
Program Memory Type Flash
Manufacturer NXP Semiconductors
Original Brand Freescale Semiconductor
Categoria Microcontroller IC

Guia de Configuração de Pinos do MC908KX2MDWE 16-soic, 0.295 inch / 7.50 mm width

Configuração de pinos para MC908KX2MDWE (pacote 16-soic, 0.295 inch / 7.50 mm width). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.

Diagrama de pinagem do pacote 16-soic, 0.295 inch / 7.50 mm width para MC908KX2MDWE

Nenhum dado detalhado de pinagem disponível para MC908KX2MDWE.

Consulte a ficha técnica para a configuração completa dos pinos.

Aplicações típicas

MC908KX2MDWE é adequado para 6 aplicaçãos: Legacy Appliance Control, Compact Industrial Sequencer, Legacy Motor and Relay Sequencing, Legacy Communications Interface, Instrumentation Control Panel, Obsolete Product Maintenance.

🏭

Legacy Appliance Control

The MC908KX2MDWE fits legacy appliance-control boards that already depend on the M68HC08 CPU08 architecture and modest embedded logic. Its documented 8 MHz operating speed supports sequencing, mode selection, timing, and state-machine control, while 2 KB of flash stores firmware in a compact 16-SOIC package. The M68HC08 object-code compatibility statement can reduce software migration effort when retaining established routines, although memory maps, timing, and peripherals still require review. For production, secure qualified inventory because the NXP product page marks the device end of life and verify the complete pinout and electrical limits before redesign.

⚡

Compact Industrial Sequencer

The MC908KX2MDWE can serve as the fixed-function controller in a compact sequencing module where an 8-bit CPU and 2 KB flash are sufficient. The 8 MHz clock supports deterministic control loops that coordinate discrete outputs, operating modes, and timed transitions, provided peripheral and timing details are confirmed from the datasheet. Its 16-SOIC surface-mount package supports established through-hole-compatible industrial layouts better than a modern fine-pitch redesign. Because lifecycle risk is high, production systems should record firmware revisions, validate every purchased lot, and establish a tested end-of-life buffer rather than relying on continuous distributor availability.

🚗

Legacy Motor and Relay Sequencing

For a legacy relay or motor-sequencing controller, the MC908KX2MDWE provides enough documented performance for compact control logic at 8 MHz, but its suitability depends on unverified timer, I/O, and electrical details. Engineers should confirm output-drive limits, isolation requirements, protection networks, and timing resources in the manufacturer datasheet rather than assuming modern MCU capabilities. The 2 KB flash limit favors concise state machines over feature-heavy firmware. A safety-conscious migration should preserve proven external drivers and replace only the controller after timing, noise, and fault-response tests pass.

🌐

Legacy Communications Interface

MC908KX2MDWE may be used in simple polling-based interface equipment built around the M68HC08 architecture, especially where firmware and board revisions are already frozen. The 8-bit, 8 MHz processor can execute protocol routines and supervisory logic, while 2 KB flash constrains buffering and feature complexity. Exact serial-port availability, baud-rate support, and pin multiplexing are not present in the verified data and must not be inferred. Use the controlled datasheet to confirm peripheral resources, then validate timing against the original circuit because a nominal clock match does not guarantee communication compatibility.

🔧

Instrumentation Control Panel

The MC908KX2MDWE is applicable to legacy front-panel or instrumentation logic that performs button scanning, mode control, status indication, and supervisory sequencing. Its documented 8 MHz execution rate and 2 KB flash are appropriate for modest control tasks, while the 16-SOIC package can simplify reuse of an existing PCB. ADC channels, timer resolution, display interfaces, and GPIO allocation were not supplied and require direct datasheet verification. For instrumentation upgrades, compare measurement accuracy and latency—not merely CPU frequency—because analog front-end compatibility usually determines whether the original board can be retained.

🖥️

Obsolete Product Maintenance

MC908KX2MDWE is most valuable as a maintenance component for deployed equipment that already uses the exact MCU, firmware toolchain, and board revision. The verified M68HC08 object-code compatibility statement can help assess legacy code families, but it does not prove that every function is source- or binary-compatible across devices. Maintenance teams should preserve schematics, firmware binaries, programmer settings, and datasheet copies, then qualify each inventory lot before installation. Because the official page reports end of life, allocate parts through a documented last-time-buy or end-of-life purchasing plan instead of allowing uncontrolled consumption.

What is the MC908KX2MDWE?
The MC908KX2MDWE is an 8-bit NXP Semiconductors microcontroller based on the M68HC08 architecture and CPU08 core. According to the NXP product page and verified distributor listing, it operates at 8 MHz, contains 2 KB of 2K x 8 flash program memory, and uses a 16-SOIC package. It is identified as an HC08K-family device intended for embedded-control applications.
What are the key specifications of MC908KX2MDWE that engineers should know?
The key documented specifications are an 8-bit CPU, 8 MHz operating frequency, 2 KB of flash memory, 3.3 V or 5 V operation, and a 16-SOIC package. The verified NXP description places it in the low-cost HC08K family using the M68HC08 architecture. RAM, GPIO, timers, ADC functions, electrical limits, and pin assignments were not supplied and must be verified in the manufacturer datasheet.
What is the operating voltage of MC908KX2MDWE?
The verified datasheet-index information supports 3.3 V or 5 V operation for the MC908KX2MDWE. Exact minimum and maximum supply-voltage limits, plus current consumption under each clock and peripheral condition, were not included in the retrieved dataset. Those electrical details should therefore be checked in the manufacturer datasheet before the device is approved for a new design.
Where can I download the MC908KX2MDWE datasheet PDF?
A searchable MC908KX2MDWE datasheet PDF is available through the verified Freescale document link at alldatasheet.com. The retrieved indexing result identifies a 210-page document, but that page count is not independently confirmed by the manufacturer page. The NXP product page also provides access to the manufacturer Data Sheet and should be preferred for controlled design work.
Where can I find the MC908KX2MDWE pinout?
The MC908KX2MDWE pinout should be located in the manufacturer Data Sheet linked from the NXP product page; the verified package is 16-SOIC. The supplied search excerpts do not include authoritative pin numbers, signal names, or exposed-pad details, so a complete pin assignment is intentionally not fabricated. Confirm all 16 pins, programming signals, supply pins, ground pins, and I/O direction in the controlled datasheet.
Where can I buy MC908KX2MDWE online?
The verified distributor results list MC908KX2MDWE at DigiKey, Mouser, Octopart, and Heisener. Heisener displayed a reference price of $6.6610 per unit and reported 19,152 pieces in stock when the search was retrieved, while other distributor pages requested direct quotation or did not expose a stable unit price in the excerpt. Availability and lifecycle quantities should be reconfirmed before ordering.
What is the price of MC908KX2MDWE?
The verified Heisener result showed a unit price of $6.6610 for MC908KX2MDWE, with reference-only inventory information and immediate-shipping language. That price is as of 2026-10-21 and may exclude taxes, freight, and quantity discounts. Because the NXP page labels the device end of life, buyers should request a written supply commitment rather than relying on a distributor landing-page quote.
What is the lead time for MC908KX2MDWE?
The retrieved Heisener listing stated that MC908KX2MDWE could ship immediately and showed an estimated delivery window of June 5 through June 10, while the NXP product page identifies the device as end of life. The exact quoted lead time for a specified quantity and date was not preserved in the verified excerpt. Obtain current manufacturer confirmation and a distributor quotation before committing a production schedule.
Is MC908KX2MDWE in stock?
The MC908KX2MDWE was shown as available in the verified search results: Heisener reported 19,152 pieces, and DigiKey pages used a buy-now message. This does not establish durable factory supply because the official NXP page identifies the part as end of life. Stock shown by a distributor can change rapidly, so quantity-specific availability must be confirmed at the time of purchase.
Is MC908KX2MDWE suitable for legacy embedded systems?
The MC908KX2MDWE is suitable for many legacy embedded-control systems that use an 8 MHz 8-bit CPU and modest flash capacity. The verified datasheet-index description states that its M68HC08 architecture is upward-compatible at the object-code level with M6805, M146805, and M68HC05 families. Compatibility does not eliminate checks of pinout, electrical timing, memory maps, peripherals, and development-tool support.
What can replace MC908KX2MDWE?
No verified drop-in replacement was identified in the supplied cross-reference results. A replacement must match the 16-SOIC footprint, pin functions, supply limits, clock behavior, flash organization, interrupt model, memory map, and programming interface. MC908KX2CDWER appears in the site list, but the retrieved data does not verify it as a drop-in substitute, so it is not presented as one here.
Is MC908KX2MDWE the same as MC908KX2VDWE?
The retrieved web results show a comparison page for MC908KX2VDWE versus MC908KX2MDWE, but they do not provide verified evidence that the two devices are electrically and pin compatible. The M letter in the target ordering code should not be interpreted as proof of equivalence. Confirm the suffix, operating-temperature grade, package, and datasheet-specific differences before considering substitution.
MC908KX2MDWE vs MC908KX2CDWER: which is the better replacement candidate?
MC908KX2CDWER cannot be recommended as a drop-in replacement from the supplied evidence alone. MC908KX2MDWE is verified as a 16-SOIC, 8 MHz, 2 KB-flash HC08K device, but no authoritative comparison establishes that MC908KX2CDWER has identical pins, timing, memory, and electrical ratings. Use the manufacturer cross-reference or obtain both datasheets and perform a formal migration review.
When should engineers choose MC908KX2MDWE instead of a newer MCU?
Choose MC908KX2MDWE only when maintaining an existing HC08 design makes continuity more valuable than modernization. Its documented 8 MHz CPU, 2 KB flash, M68HC08 architecture, and object-code compatibility story can simplify legacy maintenance. A newer MCU may provide more memory, faster processing, or active supply, but only a board-level redesign may deliver those benefits because pin and software compatibility are not established.
What design risks matter when using an end-of-life MC908KX2MDWE?
The primary design risks are supply continuity, obsolete tooling, undocumented last-time-buy quantities, and incomplete availability of qualified second-source parts. The NXP page identifies MC908KX2MDWE as end of life, so engineers should freeze a known-good BOM, archive the exact datasheet and firmware tools, qualify inventory, and plan a redesign. Do not treat distributor stock or an unreferenced cross-reference result as guaranteed lifecycle support.

Dados de referência de engenharia para MC908KX2MDWE — comparação, orientação de projeto e informações de conformidade.

Guia de seleção

Choose MC908KX2MDWE for repair or continuation of an existing design only when the exact MCU, firmware, and board revision are already known. Its documented 8 MHz CPU08 core, 2 KB flash, and M68HC08 architecture fit legacy embedded-control work, while object-code compatibility may reduce migration effort. Do not choose it for a new design without confirming end-of-life supply, programming-tool availability, and a funded transition plan. MC908KX2CDWER and MC908KX2VDWE are comparison leads, not verified drop-in substitutes; their suffixes and web appearance alone do not establish pin, timing, or peripheral compatibility. When maintaining production, prefer qualified inventory with traceable sourcing and preserve the exact datasheet and firmware toolchain. If redesign is acceptable, compare a modern 8-bit MCU on memory, peripherals, tooling, package, and total migration effort rather than treating processor frequency as the only criterion.

Principais diferenciais

  • Legacy firmware continuity (vs MC908KX2CDWER)
  • Established package identity (vs MC908KX2VDWE)
  • Defined maintenance target (vs Newer 8-bit MC9S08 devices)

Notas de projeto

Do not approve a substitute from the ordering-code suffix alone. A true drop-in replacement for MC908KX2MDWE must match the 16-SOIC footprint, every pin function, supply limits, clock requirements, flash organization, reset behavior, programming signals, and legacy software assumptions. The supplied cross-reference search produced a comparison tool but no verified compatible MPN, so PCB and firmware changes may be necessary. This is especially important because MC908KX2MDWE is end of life and an apparently close member of the HC08 family may change temperature grade, timing, or peripherals.

Verify the manufacturer's recommended operating-voltage range, I/O-pin limits, startup behavior, and decoupling requirements before powering a board. The retrieved data supports nominal 3.3 V or 5 V use but does not provide minimum or maximum limits, current consumption, or pin-drive ratings. Preserve the original power-supply topology unless the controlled datasheet proves compatibility. During end-of-life purchasing, inspect storage, marking, and solderability because older inventory may have exceeded recommended bake or floor-life limits.

Treat the original 16-SOIC layout as a complete electrical interface rather than a mechanical outline. Confirm exposed programming, reset, oscillator, supply, ground, and I/O assignments from the controlled datasheet before routing or rework. A pin-compatible footprint is not sufficient if programming voltage, peripheral mapping, or interrupt behavior differs. For maintenance boards, retain the original component designation and approved-source records so mixed inventory cannot silently alter clock, memory, or peripheral behavior.

Informações de conformidade

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
Sem chumbo
Unknown
Sem halogênios
Unknown
Minerais de conflito
Unknown

The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for MC908KX2MDWE.

Dados verificados em: 2026-10-21 — dados verificados e curados pela equipe de engenharia de componentes da XAIPART

Buscas relacionadas

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Componentes & termos relacionados

NXP Semiconductors Freescale Semiconductor MC908KX2MDWE MC908KX2CDWER MC908KX2VDWE HC08K M68HC08 CPU08 8-bit microcontroller embedded controller flash memory 16-SOIC surface-mount package object-code compatibility M6805 M146805 M68HC05 embedded systems industrial control legacy product maintenance
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