MC9S08QA4CDNE - 20MHz 4KB 8-Bit MCU | NXP
N.º da peça: MC9S08QA4CDNE ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $1.9808 | $1,98 |
| 10 | $1.9808 | $19,81 |
| 100 | $1.9808 | $198,08 |
| 500 | $1.9808 | $990,40 |
| 1.000 | $1.9808 | $1.980,80 |
MC9S08QA4CDNE Visão geral
A microcontroller is a compact programmable control component that integrates a CPU, memory, and peripherals into one semiconductor device. The HCS08 MCU belongs to the S08 family of 8-bit microcontrollers and provides a cost-effective platform for embedded control. Its compact SOIC-8 package makes it suitable for space-constrained products, although its limited pin count requires careful prioritization of external connections.
The verified product data identifies a maximum CPU frequency of 20 MHz and 4 KB, or 4K × 8 bits, of Flash. The HCS08 core supports as many as 32 interrupt or reset sources, breakpoint-controlled background debugging, and the BGND instruction. The device family combines 1.8 V to 3.6 V operation in the retrieved manufacturer-family data, while the target listing identifies the broader 1.8 V to 3.3 V operating range.
MC9S08QA4 devices are positioned for low-cost, low-power embedded systems. Their two low-power stop modes can reduce activity during idle periods, while low-voltage detection helps the firmware respond to falling supply voltage. On-chip memory reduces external component count, and the 8-pin package can simplify PCB assembly when the design needs only a small number of I/O functions.
Typical uses include small sensor controllers, simple motor controllers, household appliances, compact timers, and low-cost embedded control modules. The 20 MHz processor supports more responsive control loops than slower general-purpose 8-bit devices, but engineers must account for the limited memory and I/O available on an 8-pin MCU.
When selecting this MCU, verify pin assignments, reset behavior, clock requirements, and programming compatibility in the manufacturer documentation. Because the part is presented as an end-of-life product on NXP's product page, new designs should check lifecycle status and consider a currently supported MCU unless regulatory, cost, or legacy requirements justify the original device.
This page consolidates the verified distributor listings, lifecycle information, package details, and design-oriented guidance for engineers evaluating this legacy 8-bit S08 microcontroller.
Alternativas drop-in para MC9S08QA4CDNE — 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 MC9S08QA4CDNE (mesmo formato e footprint) — diferindo em Supply Voltage Range, CPU Architecture, Flash Memory, Instruction Set, Low-Power Modes.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MC9S08QG4CDNE
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Ver ficha técnica →MC9S08QA4CDNE Classificações máximas e características elétricas
| Product Type | 8-bit HCS08 microcontroller |
| Maximum CPU Frequency | 20 MHz |
| Flash Memory | 4 KB (4K × 8 bits) |
| Supply Voltage Range | 1.8 V to 3.3 V |
| Encapsulamento | 8-pin SOIC |
| CPU Architecture | HCS08 with HC08 instruction set and BGND instruction |
| Interrupt and Reset Sources | Up to 32 sources |
| Low-Power Modes | 2 very-low-power stop modes |
| Low-Voltage Detection | Supported |
| Temperatura de operação | -40°C to +85°C |
| Background Debugging | Supported |
| Breakpoint Capability | Single breakpoint on-chip during in-circuit debugging; additional on-chip breakpoints stated by retrieved data |
| S08 Core Speed | 40 MHz core speed; 20 MHz bus speed |
| Tipo de montagem | Surface Mount |
| Manufacturer | NXP Semiconductors |
| Status do ciclo de vida | End of Life |
| RoHS | unknown |
| REACH | unknown |
| AEC-Q100 | unknown |
| Lead-Free | unknown |
Guia de Configuração de Pinos do MC9S08QA4CDNE 8-pin soic
Configuração de pinos para MC9S08QA4CDNE (pacote 8-pin soic). 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.
Nenhum dado detalhado de pinagem disponível para MC9S08QA4CDNE.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
MC9S08QA4CDNE é adequado para 6 aplicaçãos: Low-Cost Sensor Node, Compact Motor Controller, Household Appliance Controller, Battery-Powered Timer, Simple Communication Interface, Educational Embedded Controller.
Low-Cost Sensor Node
The MC9S08QA4CDNE is a reasonable fit for a compact sensor node when the design needs an 8-bit control loop rather than a high-performance processor. Its verified 20 MHz CPU provides headroom for sampling, filtering, and simple decision logic, while 4 KB Flash constrains application size and may favor table-driven or tightly scoped firmware. The 1.8 V to 3.3 V family range aligns with many low-energy embedded rails. Two very-low-power stop modes can extend idle time, and low-voltage detection can protect operation during battery discharge. Before layout release, verify the 8-pin I/O budget, sensor interface requirements, regulator start-up behavior, and whether 4 KB Flash is sufficient for the complete application.
Recomendado
Compact Motor Controller
The MC9S08QA4CDNE can serve in a simple motor-control or actuator-control design where the 8-bit architecture and 20 MHz CPU are sufficient for deterministic supervisory logic. The verified 4 KB Flash limits the amount of control software, so complex motion algorithms may need to be simplified or moved to a larger MCU. The 8-pin SOIC package leaves limited access to external signals, making pin multiplexing and careful peripheral selection essential. Low-voltage detection and two low-power stop modes are useful for reducing energy when the actuator is inactive. Validate motor-driver timing, fault handling, reset behavior, thermal conditions, and the exact pin map in the manufacturer documentation before production.
Recomendado
Household Appliance Controller
The MC9S08QA4CDNE is suitable for a small appliance controller that coordinates buttons, indicators, relays, or simple sensors. Its 8-bit HCS08 CPU and 4 KB Flash are appropriate for straightforward state machines and fixed-function control, while the 8-pin SOIC package supports compact board construction. The verified 1.8 V to 3.3 V operating class can simplify integration with low-voltage control circuitry. Designers should budget I/O pins for safety inputs and actuator drive, and should use low-voltage detection to define a safe shutdown state. Because this is an End of Life MCU, production programs should include an alternate sourcing plan or consider a currently supported controller with more memory and I/O.
Recomendado
Battery-Powered Timer
The MC9S08QA4CDNE is a practical candidate for a battery-powered timer or periodic-event controller because the S08QA family provides two very-low-power stop modes and low-voltage detection. The MCU can sleep between timed events, wake under a documented trigger, and execute a compact 8-bit state machine. Its 20 MHz maximum CPU speed is more than adequate for ordinary timer bookkeeping and simple user-interface handling. Actual battery life depends on the wake source, oscillator setup, peripheral activity, and firmware timing, none of which is fully specified in the supplied data. Validate wake behavior, supply current, oscillator accuracy, and reset conditions in the datasheet and prototype before committing the design.
Recomendado
Simple Communication Interface
The MC9S08QA4CDNE can be evaluated for a small protocol interface or sensor gateway when the interface is modest and the 8-pin package has enough external connections. The 20 MHz 8-bit CPU can handle framing, state management, and basic command processing, but the 4 KB Flash limit may restrict protocol stacks and logging. The verified background debugging support is useful during development, while the two low-power stop modes can help between transactions. Designers must confirm UART, SPI, or other interface availability, pin multiplexing, baud-rate tolerance, and electrical levels; those peripheral details are not present in the supplied verification data and should be checked in the official NXP documentation.
Recomendado
Educational Embedded Controller
The MC9S08QA4CDNE is suitable for learning embedded-control fundamentals because it combines a recognizable 8-bit HCS08 architecture, a 20 MHz CPU, 4 KB Flash, and a compact 8-pin SOIC package. Students can use it to study reset, low-voltage detection, stop-mode entry, interrupt handling, and basic peripheral control without adopting a complex high-end MCU. Background debugging and breakpoint capability help simplify development and fault diagnosis. The limited memory and pin count are useful lessons in resource planning, but they may constrain larger classroom projects. For new instructional platforms, check current tool and programming support because the manufacturer product page identifies the target as End of Life.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MC9S08QA4CDNE — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MC9S08QG4CDNE |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Package | 8-pin SOIC | 8-pin SOIC |
| CPU Architecture | 8-bit HCS08 | 8-bit S08; detailed equivalence not verified |
| Maximum CPU Frequency | 20 MHz | 20 MHz |
| Flash Memory | 4 KB (4K × 8 bits) | 4 KB (4K × 8 bits) |
Principais diferenciais
- Verified 20 MHz 8-bit HCS08 performance (vs MC9S08QG4CDNE)
- Compact 8-pin SOIC integration (vs MC9S08QG4CDNE)
- Documented legacy sourcing status (vs MC9S08QG4CDNE)
Notas de projeto
Design the supply rail and decoupling for the documented 1.8 V to 3.3 V operating class, while checking the exact ordering-code limits in the NXP datasheet. Place the required supply capacitors close to the MCU power pins and keep switching-regulator noise away from sensitive analog or timing circuits. The verified data identifies low-voltage detection and two stop modes, but it does not provide detailed current-consumption figures, so measure sleep and active current in the final board.
Treat the 8-pin SOIC footprint as a constrained resource. Confirm every pin assignment before routing, especially reset, programming, clock, and ground connections. Keep the footprint compatible only with a replacement whose pinout has been verified, not merely one with the same package name. Add test points for programming and power rails, and preserve component clearance for rework and automated inspection.
Do not infer interchangeability from a matching 8-SOIC package and matching headline CPU and Flash ratings. MC9S08QG4CDNE is a candidate for review, but the supplied data does not verify pin names, peripheral mapping, memory organization, electrical limits, or firmware behavior. Before substitution, compare the official datasheets, confirm reset and debug requirements, and perform a hardware and firmware regression test.
Use the low-power modes deliberately rather than assuming that entering STOP automatically minimizes total system power. Wake sources, oscillator state, active peripherals, and external pull networks can dominate battery consumption. Establish a measurement plan that records active current, idle current, wake latency, and battery voltage across the full operating range. The retrieved data confirms two very-low-power stop modes but does not provide their current values.
Informações de conformidade
The supplied verification data does not extract RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations for this specific MPN. NXP's product page identifies the device as End of Life.