MC9S08PL8CLC - 8-Bit 20MHz MCU with 8KB Flash | NXP
Référence : MC9S08PL8CLC ✓ ActifMC9S08PL8CLC Présentation
An S08 microcontroller is a compact embedded-control device in the 8-bit microcontroller hierarchy. It combines a CPU core, flash program memory, RAM, peripherals, and general-purpose input/output pins on one integrated circuit. The MC9S08PL8CLC uses the economical HCS08/S08 architecture and is positioned for applications that require deterministic control, analog measurement, EEPROM integration, and modest processing performance without a higher-cost 32-bit MCU.
Key device features include 8 KB of flash, 256 bytes of RAM, a 10-bit analog-to-digital converter, an analog comparator, a 16-bit timer, keyboard interrupt capability, and up to 30 I/O pins. Its 20 MHz clock supports faster control-loop execution than lower-frequency 8-bit designs. The 2.7 V to 5.5 V supply range permits integration with 3.3 V and 5 V system rails, although the external circuitry must respect each connected peripheral's voltage limits.
The S08P family combines the established S08 core and peripheral set with features intended to simplify cost-sensitive embedded systems. NXP describes the family as scalable and pin-compatible, supporting migration within the product family. Embedded EEPROM provides nonvolatile parameter storage, while the ADC and analog comparator reduce the need for external sensing components in simple measurement, threshold, or control functions.
Typical uses include appliance controllers, keypad interfaces, industrial control modules, simple motor or relay controls, instrumentation, and compact user-interface panels. The 30 I/O count is particularly useful when a design must combine digital inputs, outputs, and analog sensing without adding a separate interface IC. The 7 x 7 mm LQFP also provides a practical option for automated assembly and inspection compared with smaller packages that can be difficult to handle in lower-volume production.
When designing around the MC9S08PL8CLC, verify the complete pin assignment and peripheral multiplexing in the manufacturer datasheet before assigning analog, timer, debug, or communication functions. Provide the required clock, reset, decoupling, and programming-interface components, and do not assume that every adjacent 5 V-compatible I/O can safely tolerate a 5.5 V input. Check the package pin count, exposed thermal behavior, and reflow profile during PCB qualification.
This page consolidates the manufacturer's device positioning, distributor package details, memory and analog specifications, application guidance, and strict drop-in-replacement screening. It also identifies where a board-level substitution must be validated against pin multiplexing, timing, memory capacity, voltage, and qualification requirements rather than package dimensions alone.
Alternatives de remplacement direct pour MC9S08PL8CLC — 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 MC9S08PL8CLC (même facteur de forme et même empreinte) — différant par Analog Comparator, Core, Package.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesMC9S08PL8CLC Valeurs maximales et caractéristiques électriques
| Product Type | 8-bit S08 microcontroller |
| Core | S08 / HCS08 |
| Fréquence d'horloge maximale | 20 MHz |
| Flash Memory | 8 KB |
| RAM | 256 B |
| ADC Resolution | 10 bit |
| Analog Comparator | 1 comparator |
| Timer | 16-bit timer |
| Number of I/O Pins | 30 |
| Tension d'alimentation de fonctionnement | 2.7 V to 5.5 V |
| Minimum Operating Temperature | -40 °C |
| Maximum Operating Temperature | +85 °C |
| Boîtier | 32-LQFP, 7 x 7 mm |
| Style de montage | SMD |
| Largeur du bus de données | 8 bit |
| Keyboard Interrupt Module | Integrated |
| Moisture Sensitivity Level | MSL 3 |
| JESD-609 Code | e3 |
| Terminal Finish | Tin |
| Peak Reflow Temperature | 260 °C |
| Maximum Time at Peak Reflow Temperature | 40 s |
Guide de configuration des broches du MC9S08PL8CLC 32-lqfp, 7 x 7 mm
Configuration des broches du MC9S08PL8CLC (boîtier 32-lqfp, 7 x 7 mm). 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 MC9S08PL8CLC.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MC9S08PL8CLC convient pour 6 applications: Appliance Control Panel, Industrial Sensor Interface, Keypad and Menu Interface, Relay and Discrete Control, Simple Instrumentation, Compact Embedded Controller.
Appliance Control Panel
The MC9S08PL8CLC fits appliance control panels that combine keypad scanning, indicator control, motor sequencing, and simple analog monitoring. Its 20 MHz S08 core provides responsive task execution, while the integrated 16-bit timer supports repeatable timing sequences and the keyboard interrupt module reduces the need for continuous polling. The 10-bit ADC can monitor temperature or supply-related signals, and the analog comparator can detect thresholds. With 30 I/O pins in a 7 x 7 mm 32-LQFP package, the controller can consolidate several discrete functions while preserving board area for the appliance's power stage and user interface.
Industrial Sensor Interface
The MC9S08PL8CLC is useful for compact industrial sensor interfaces that must read moderate-resolution analog signals and translate them into digital control or alarm outputs. Its 10-bit ADC handles slow or moderately varying process measurements, while the analog comparator provides a fast threshold function for simple limit detection. The 2.7 V to 5.5 V operating range supports both 3.3 V and 5 V industrial subsystems. With 20 MHz processing speed, 8 KB flash, and 256 bytes of RAM, the device can perform filtering, calibration handling, status reporting, and communication updates when the application stays within those memory constraints.
Keypad and Menu Interface
The MC9S08PL8CLC can manage matrix keypads and simple menu-driven interfaces in cost-sensitive equipment. Its keyboard interrupt module allows the firmware to respond to key activity rather than devote continuous processing time to scanning, while the 20 MHz core supports debouncing, display updates, and menu state management. Thirty available I/O pins leave practical capacity for keypad rows and columns, display control, status indicators, and communications. Its 8 KB flash accommodates the application program and 256 bytes of RAM supports working state, although display buffering and other memory-intensive tasks should be checked against the device limits during firmware planning.
Relay and Discrete Control
The MC9S08PL8CLC is well suited to small relay, indicator, and discrete actuator control boards. The 16-bit timer can establish stable timing intervals, while the 20 MHz core can coordinate interlocks, state transitions, and diagnostic logic. Its 30 I/O pins can distribute control and sensing across multiple channels without requiring a larger processor. Operating from 2.7 V to 5.5 V also allows the controller to share common industrial supply levels, although relay drivers, isolation, flyback protection, and high-voltage interfaces require separate components and careful grounding.
Simple Instrumentation
The MC9S08PL8CLC supports compact instrumentation products that combine analog measurement, threshold detection, local input, and status indication. The 10-bit ADC can capture slow process or sensor signals, and the analog comparator can provide an independent threshold event for alarms or range selection. Its 8 KB flash is appropriate for compact control and calibration logic, while 256 bytes of RAM constrains buffer depth and protocol complexity. NXP's S08P positioning for cost-sensitive user-interface and industrial environments aligns with simple meters, panel instruments, and dedicated measurement modules requiring deterministic embedded control.
Compact Embedded Controller
The MC9S08PL8CLC can serve as the central controller in compact products that require moderate logic, analog sensing, and several digital interfaces. Its 20 MHz S08 core, 8 KB flash, 256 bytes of RAM, and integrated EEPROM provide a cost-focused platform for configuration storage and deterministic state machines. The broad 30-pin I/O complement allows connection to sensors, displays, and discrete outputs while keeping the 7 x 7 mm LQFP footprint manageable for automated assembly. Firmware should be sized carefully and tested against the integrated timer, ADC, comparator, reset, and programming requirements before production release.
Données de référence d'ingénierie pour MC9S08PL8CLC — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Brand | NXP Semiconductors |
| Package | 32-LQFP, 7 x 7 mm |
| Core | 8-bit S08 |
| Maximum Clock Frequency | 20 MHz |
| Flash Memory | 8 KB |
| RAM | 256 B |
| ADC Resolution | 10 bit |
| Operating Supply Voltage | 2.7 V to 5.5 V |
| Number of I/O Pins | 30 |
| Operating Temperature | -40 °C to +85 °C |
Principaux différenciateurs
- Integrated analog and timing resources reduce external support components (vs MC9S08PL4CLC)
- Higher memory density within the scalable S08P family (vs MC9S08PL4CLC)
- Broader input-output integration for panel and controller designs (vs MC9S08PL32CLC)
Notes de conception
Plan the supply network for the complete 2.7 V to 5.5 V operating range. Place the required bypass components directly beside the appropriate power and ground pins, keep the return path short, and distinguish any analog supply requirements from the digital core supply in the schematic. Confirm startup behavior and supply tolerances with the manufacturer reference design before fixing the regulator selection.
Use the manufacturer land pattern for the 32-LQFP 7 x 7 mm package and verify pad dimensions against the final PCB process. Preserve access to the programming and debug signals, avoid routing sensitive analog inputs beside switching-power nodes, and provide thermal copper where required. The MSL 3 classification and 260 °C peak-reflow limit should also be considered in the board assembly process.
Do not treat similar-looking S08 devices as automatically interchangeable. Before substituting, compare the complete pin table, supply domains, oscillator options, programming interface, reset behavior, ADC channels, timer resources, memory map, and temperature grade. Firmware that depends on register addresses or peripheral multiplexing must also be recompiled and regression-tested for the selected device.
Assign analog inputs according to the manufacturer's pin and multiplexing guidance, and route them away from relay drivers, switching regulators, and high-current outputs. If the ADC is used for sensitive measurements, include the manufacturer-recommended input conditioning and sampling strategy. A comparator-based threshold function may be preferable when only a binary decision is required and the application does not need calibrated measurement resolution.
Informations de conformité
NXP identifies the S08P family as meeting IEC 60730 for the covered appliance applications. The MSL 3 designation, JESD-609 e3 code, tin terminal finish, 260 °C peak reflow temperature, and 40-second peak-reflow duration are listed for the exact device. RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status are not stated for the exact MPN.
