MC9S08QD4CPC - 16MHz 8-bit MCU 4KB Flash DIP-8 | NXP
Référence : MC9S08QD4CPC ✓ ActifMC9S08QD4CPC Présentation
An HCS08 microcontroller is an 8-bit embedded controller used to execute firmware, read inputs, control outputs and manage system timing. Within the hierarchy of embedded processing, the HCS08 core belongs to the 8-bit MCU family, while the MC9S08QD4 device adds Flash program storage, RAM, general-purpose I/O and an analog-to-digital converter. The MC9S08QD4 family is specifically described as the lowest-end member of the S08 8-bit architecture.
The device operates at up to 16 MHz and contains 4 KB of Flash organized as 4K x 8. Cross-reference information also identifies 0.256 KB of internal RAM, a four-channel 10-bit A/D converter and six general-purpose I/O pins. These resources suit compact consumer products, simple industrial controls, digital keypads, small motor or relay controllers, and low-cost sensing nodes where a larger MCU would add unnecessary cost and board area.
The MC9S08QD4CPC is packaged in DIP-8, making it useful for prototype boards, through-hole educational platforms and manually assembled control modules. Its small pin count keeps the device appropriate for applications requiring limited external signals. The enhanced HCS08 instruction set and background debugging support help developers inspect program execution, set breakpoints and use in-circuit debugging during firmware development.
Designers should confirm the exact pin assignments, peripheral multiplexing, voltage limits, clock configuration and power requirements in the NXP MC9S08QD4 data sheet before laying out a PCB. For battery-operated or low-energy designs, verify current consumption in each operating mode and whether the chosen clock and peripheral configuration meet the available power budget.
This product page brings together the NXP device identity, manufacturer data sheet, distributor listing and a practical comparison with the documented MC9S08QD4MPC variant. It is intended to help engineers confirm package, memory, clock and peripheral requirements before requesting a quote or beginning a design-in.
Alternatives de remplacement direct pour MC9S08QD4CPC — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MC9S08QD4CPC (même facteur de forme et même empreinte) — différant par Instruction Set, Maximum CPU Frequency, Package, Core, Debug Interface.
MC9S08QD4MPC
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Voir la fiche technique →MC9S08QD4CPC Valeurs maximales et caractéristiques électriques
| Product Type | 8-bit microcontroller (MCU) |
| Architecture | CISC |
| CPU Core | Enhanced HCS08 |
| Maximum CPU Frequency | 16 MHz |
| Bus Frequency | 8 MHz |
| Flash Memory | 4 KB (4K x 8) |
| Internal RAM | 0.256 KB |
| A/D Converter | 4-channel, 10-bit |
| General-Purpose I/O Pins | 6 |
| Boîtier | DIP-8 |
| Pinning | 8-PDIP |
| Debug Support | Background debugging system with breakpoint capability |
| Instruction Set | HC08 instruction set with added BGND instruction |
| Series | MC9S08QD4 |
| Product Family | S08QD |
| Statut du cycle de vie | Active |
| Manufacturer | NXP Semiconductors |
Guide de configuration des broches du MC9S08QD4CPC dip-8
Configuration des broches du MC9S08QD4CPC (boîtier dip-8). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour MC9S08QD4CPC.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MC9S08QD4CPC convient pour 6 applications: Compact Industrial Control Module, Digital Keypad and Access Controller, Analog Sensor Node, Small Motor and Relay Sequencer, Battery-Powered Appliance Controller, Educational Robotics Controller.
Compact Industrial Control Module
MC9S08QD4CPC is appropriate for a small controller that reads sensors, evaluates operating states and controls relays, indicators or small actuators. Its enhanced HCS08 core runs at up to 16 MHz with an 8 MHz bus, while 4 KB of Flash provides room for compact control firmware. The four-channel, 10-bit A/D converter supports analog process inputs, and six general-purpose I/O pins can be assigned to digital commands, status indicators and actuator controls. The DIP-8 package simplifies through-hole prototype construction. For production equipment, confirm temperature range, electrical limits and isolation requirements before deployment.
Recommandé
Digital Keypad and Access Controller
MC9S08QD4CPC can manage a matrix keypad, status LED and controlled lock or relay in a compact access-control design. The 16 MHz enhanced HCS08 core provides sufficient instruction throughput for debouncing, key decoding and event handling, while 4 KB of Flash accommodates compact firmware and the 0.256 KB RAM provides working storage. General-purpose I/O pins are suitable for keypad lines, indicators and the controlled output. Use the four-channel, 10-bit A/D converter only when analog sensing is genuinely required, since the DIP-8 pin budget is limited. Validate actuator drive circuitry, transient protection and debounce timing in the final design.
Recommandé
Analog Sensor Node
MC9S08QD4CPC can serve as the acquisition and control element in a small sensor node when the application needs local conversion rather than remote analog measurement. Its four-channel, 10-bit A/D converter accepts up to four analog channels, and the 16 MHz HCS08 core can perform filtering, calibration and threshold decisions. Six general-purpose I/O pins allow connection of a sensor enable, alarm, status LED or communications signal. The 4 KB Flash footprint limits firmware complexity, so data processing should remain focused. Confirm analog input ranges, reference behavior and sampling timing against the manufacturer data sheet before connecting transducers.
Recommandé
Small Motor and Relay Sequencer
MC9S08QD4CPC is suitable for basic sequencing logic that coordinates a small motor, relay or solenoid with digital inputs and status feedback. Its six general-purpose I/O pins provide enough parallel control for simple state machines, while the 16 MHz CPU rate supports responsive timing and debounce routines. The 0.256 KB RAM can hold short motion sequences and operating flags, and 4 KB of Flash can contain the complete control program. The controller does not replace power drivers, current sensing or protection circuitry. Use transistor or driver stages sized for the load and validate inductive flyback handling, reset behavior and timing margins.
Recommandé
Battery-Powered Appliance Controller
MC9S08QD4CPC can implement the local control logic in a compact appliance where a dedicated MCU handles buttons, a small display interface, sensors and a relay. Its low-cost 8-bit HCS08 architecture keeps the controller economical, while 4 KB of Flash supports focused firmware. The six general-purpose I/O pins can serve user inputs and status outputs, and the four-channel, 10-bit A/D converter can monitor simple analog conditions. Because the DIP-8 package exposes only eight leads, careful pin budgeting is essential. Verify low-power mode behavior, standby current and wake-up sources in the NXP data sheet for battery-life calculations.
Recommandé
Educational Robotics Controller
MC9S08QD4CPC is well suited to educational robotics because its 8-bit HCS08 architecture is understandable, its DIP-8 package is easy to prototype and its background debugging support assists firmware development. Students can use the six general-purpose I/O pins for sensors, switches and actuators while the four-channel, 10-bit A/D converter supports analog exercises. The 16 MHz operating frequency allows responsive control loops within the limits of 4 KB Flash and 0.256 KB RAM. Its limited memory requires disciplined code organization, making it useful for learning embedded timing, state machines and peripheral control. Add appropriate motor drivers and avoid directly driving high-current loads from MCU I/O pins.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC9S08QD4CPC — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MC9S08QD4MPC |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Package | DIP-8 | DIP-8 |
| CPU Architecture | Enhanced HCS08, CISC | Enhanced HCS08, CISC |
| Maximum CPU Frequency | 16 MHz | 16 MHz |
| Bus Frequency | 8 MHz | 8 MHz |
| Flash Memory | 4 KB (4K x 8) | 4 KB (4K x 8) |
| Internal RAM | 0.256 KB | 0.256 KB |
| A/D Converter | 4-channel, 10-bit | 4-channel, 10-bit |
| General-Purpose I/O Pins | 6 | 6 |
| Debug Support | Background debugging with breakpoint capability | Background debugging with breakpoint capability |
Principaux différenciateurs
- Lowest-end S08 architecture position (vs MC9S08QD4MPC)
- Integrated four-channel analog conversion (vs MC9S08QD4MPC)
- Prototype-friendly through-hole package (vs MC9S08QD4MPC)
Notes de conception
Assign the DIP-8 footprint from the manufacturer package drawing and route power, ground, programming signals and I/O functions before adding peripheral circuitry. The package provides only eight physical leads, so several functions may be multiplexed. Confirm pin directions and alternate-function behavior in the pin-description table to prevent contention between an external peripheral and an internal module.
Decouple each supply rail close to the device with the capacitance and ESR characteristics required by the NXP data sheet. Keep analog and digital return currents controlled, connect the ground reference properly, and avoid routing switching-node or high-current return paths through the MCU area. Validate startup, brownout and operating-voltage behavior under the actual power-source impedance and load transients.
Do not assume that a similar MC9S08QD4 suffix guarantees an interchangeable part. Check the ordering table for temperature grade, package and qualification differences, then compare every pin and electrical limit used by the PCB. Also account for the limited 4 KB Flash and 0.256 KB RAM when planning code, tables, stack depth and debug support.
Protect any externally connected signal from voltages and transients beyond the device limits. Do not use MCU I/O pins to drive relays, motors, solenoids or other inductive or high-current loads directly; use suitable driver and protection stages. For analog measurements, verify the source impedance, acquisition time, reference-voltage accuracy and required sampling rate rather than assuming every channel can be read at the maximum conversion rate.
Informations de conformité
The product identity, lifecycle status and technical features are confirmed, but the available product information does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free or conflict-minerals status. Request current manufacturer compliance documentation before making a regulatory claim.
