MC9S08PL4CSC - 8-Bit 20MHz 4KB Flash MCU | NXP
Référence : MC9S08PL4CSC ✓ ActifMC9S08PL4CSC Présentation
An S08 microcontroller is a compact embedded-control device that combines a central processing unit, program memory, data memory, peripherals, and communication interfaces on one integrated circuit. The S08PL family is positioned as a cost-effective 5 V platform for simple control systems. Its combination of Flash memory, EEPROM, a 10-bit analog-to-digital converter, an analog comparator, and flexible timers allows designers to consolidate functions that otherwise require several discrete components.
The MC9S08PL4CSC supports bus operation up to 20 MHz throughout the stated 2.7 V to 5.5 V range. Its 4 KB Flash capacity is suited to compact control code, while integrated EEPROM supports parameter retention. The 10-bit ADC enables analog measurement, and the analog comparator supports threshold-based decisions without requiring a separate comparator. Flexible timers are useful for periodic events, timing, and basic motor or actuator-control functions.
The device is based on the S08 central processing unit and uses interrupt-driven control to coordinate peripheral activity. Supporting as many as 40 interrupt and reset sources and four nested interrupt levels improves handling of simultaneous internal and external events. The family also emphasizes strong EFT and ESD performance, which is important in cost-sensitive industrial and consumer equipment exposed to electrically noisy environments.
Typical uses include small sensor controllers, appliance-control modules, LED and lighting controls, motor-control subsystems, keypad interfaces, compact power-conversion controllers, and simple industrial automation nodes. The 8-pin package is particularly useful where PCB area is constrained but the design needs more than a basic logic controller.
When designing around the MC9S08PL4CSC, reserve the eight pins for power, ground, reset, programming, clock, and I/O according to the manufacturer pin-description table. Keep analog and digital return paths controlled, provide the required decoupling close to the supply pins, and confirm all peripheral assignments against the device's pin multiplexing options before finalizing the PCB.
This page organizes the manufacturer specifications, sourcing guidance, verified drop-in alternatives, application fit, package details, and practical design considerations into one engineering-focused reference for compact 8-bit control-system designs.
Alternatives de remplacement direct pour MC9S08PL4CSC — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesMC9S08PL4CSC Valeurs maximales et caractéristiques électriques
| CPU Architecture | 8-bit S08 central processor unit |
| Maximum Bus Frequency | 20 MHz |
| Flash Memory | 4 KB (4K x 8) |
| Integrated EEPROM | Present |
| ADC Resolution | 10-bit |
| Analog Comparator | Integrated |
| Operating Voltage Range | 2.7 V to 5.5 V |
| Plage de température de fonctionnement | -40 °C to 85 °C |
| Interrupt and Reset Sources | Up to 40 |
| Nested Interrupt Levels | Up to 4 |
| Boîtier | 8-pin SOIC |
| Type de montage | Surface mount |
| Supply Configuration | 3.3 V / 5 V |
| EFT/ESD Performance | EFT/ESD performance emphasized for the S08PL family |
Guide de configuration des broches du MC9S08PL4CSC 8-pin soic
Configuration des broches du MC9S08PL4CSC (boîtier 8-pin soic). 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 MC9S08PL4CSC.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MC9S08PL4CSC convient pour 6 applications: Compact Sensor Controller, Appliance Control Module, LED Lighting Controller, Simple Motor and Actuator Control, Battery-Powered Sensor Node, Cost-Sensitive HMI Controller.
Compact Sensor Controller
The MC9S08PL4CSC fits compact sensor nodes that need local measurement, configuration retention, and control without a high-performance processor. Its 10-bit ADC can digitize suitable analog sensor outputs, while integrated EEPROM retains calibration and configuration values between power cycles. The 20 MHz S08 CPU provides timing headroom for sampling, filtering, and actuator decisions within the constraints of 4 KB Flash. The 8-pin SOIC footprint simplifies dense PCB layouts, although engineers must verify ADC input range, pin multiplexing, and the available I/O budget against the sensor interface before schematic capture.
Appliance Control Module
The MC9S08PL4CSC is well suited to appliance sub-systems that coordinate switches, indicators, sensors, and small actuators. Its 5 V-oriented 2.7 V to 5.5 V operating range fits legacy and mixed-voltage control boards, while EEPROM preserves settings without imposing Flash wear on frequently changed values. Flexible timers support periodic tasks, debouncing, and timing sequences, and the analog comparator can handle simple threshold supervision. The compact 8-pin package leaves little room for redundant peripherals, so the design should confirm every required signal, programming interface, and power pin before layout.
LED Lighting Controller
The MC9S08PL4CSC can serve as the low-cost control center for a compact LED or lighting subsystem where dimming, sequencing, and fault detection must be coordinated locally. Timers provide repeatable pulse and delay behavior, while the S08 CPU can implement lighting profiles and user-control logic within the device's 4 KB Flash limit. The integrated comparator may support threshold-based monitoring, although the ADC can be used for additional analog supervision when the pin assignment permits. Designers should verify timer resolution, available I/O, and output-drive requirements because the eight-pin package constrains simultaneous lighting functions.
Simple Motor and Actuator Control
The MC9S08PL4CSC is appropriate for small actuator-control tasks that require deterministic timing, limited logic, and modest program storage. Flexible timers can generate the timing reference used for motor pulses, drive sequences, or solenoid control, while the ADC and comparator can monitor a feedback signal or supply condition. The 20 MHz bus provides processing headroom for basic motion routines, although the 4 KB Flash limit calls for compact code. A production design must confirm whether the external driver interface, current direction, fault handling, and required protection fit the available 8-pin interface.
Battery-Powered Sensor Node
The MC9S08PL4CSC can support a small battery-powered sensing node when its sleep-mode requirements, analog limits, and memory budget fit the design. The 2.7 V to 5.5 V operating range supports low-voltage 3.3 V systems, and EEPROM allows configuration or calibration data to be retained locally. The integrated ADC reduces the need for external conversion circuitry, while the 8-pin package helps minimize board area. Before deployment, evaluate quiescent current, low-voltage behavior, regulator efficiency, and analog input limits because those individual operating details are not stated in the product-page summary.
Cost-Sensitive HMI Controller
The MC9S08PL4CSC can control a small human-machine interface composed of buttons, LEDs, and a limited display or serial peripheral. Its 8-bit architecture is suitable for straightforward menu and state-machine logic, and the S08PL family provides shared core, IP, and tool support that can simplify migration within the family. The 10-bit ADC and comparator broaden the analog-monitoring options without requiring separate components. Because only eight pins are available, interface sharing and multiplexing must be planned carefully; any matrix keypad, display, and programming interface must fit without compromising power, ground, reset, or clock requirements.
Données de référence d'ingénierie pour MC9S08PL4CSC — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| CPU Architecture | 8-bit S08 central processor unit |
| Maximum Bus Frequency | 20 MHz |
| Flash Memory | 4 KB (4K x 8) |
| Integrated EEPROM | Present |
| ADC Resolution | 10-bit |
| Analog Comparator | Integrated |
| Operating Voltage Range | 2.7 V to 5.5 V |
| Operating Temperature Range | -40 °C to 85 °C |
| Interrupt and Reset Sources | Up to 40 |
| Package | 8-pin SOIC |
| Brand | NXP Semiconductors |
Principaux différenciateurs
- Integrated analog and nonvolatile storage functions (vs A discrete 8-bit control solution)
- Compact eight-pin control footprint (vs A larger-package general-purpose MCU)
- Five-volt-capable operating range (vs A 3.3 V-only microcontroller)
Notes de conception
Place the required supply-decoupling capacitor immediately adjacent to the device power and ground pins, and keep the return path short to reduce switching noise in the analog measurement circuitry. Reserve the programming and reset connections for manufacturing access even if those functions are not used during normal operation. Confirm the final pin multiplexing against the manufacturer pin-description table before routing because the 8-pin SOIC provides limited signal redundancy.
Treat analog inputs as sensitive nodes: use short traces, avoid routing them parallel to high-current switching paths, and establish a clear return path to the device ground. The 10-bit ADC does not eliminate the need for source-impedance and sampling-capacitance analysis. If an external sensor cannot drive the ADC input adequately, add an appropriate buffer or conditioning network and recalculate the acquisition timing against the 20 MHz CPU speed.
Do not assume that a family member with a similar ordering code has the same footprint, memory configuration, or pin functions. Verify the package suffix, pin multiplexing, and memory map for every substitution. Also account for the 4 KB Flash constraint early by estimating code size, including startup code, interrupt handlers, EEPROM operations, and application logic; adding features later can require a redesign rather than a simple firmware change.
Informations de conformité
The manufacturer product information identifies the part as active and lists environmental-quality information, but no specific compliance declarations were exposed in the accessible product-page summary. Verify declarations against the current manufacturer product page before procurement.