MC9S08PA8VTJ - 8-Bit 20MHz S08 MCU | NXP | 20-TSSOP
Référence : MC9S08PA8VTJ ✗ Fin de vieMC9S08PA8VTJ Présentation
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one compact device. The S08 core places the MC9S08PA8VTJ in the 8-bit microcontroller category, where instruction efficiency, deterministic control behavior, and low system complexity are more important than the high processing throughput associated with 32-bit applications. This S08PA family combines an economical embedded-control platform with analog functions suited to sensing, monitoring, and actuator-control systems.
The MC9S08PA8VTJ includes 8 KB of flash program memory, an EEPROM capability, an analog-to-digital converter, an analog comparator, and a motor-control Flex Timer. These resources allow a compact control board to acquire analog inputs, execute control algorithms, operate timers, and drive outputs without requiring several separate peripheral devices. Its 20 MHz bus operation provides a practical balance between responsiveness, power consumption, and code execution performance for cost-sensitive embedded products.
The S08PA family uses established S08 processor architecture and reusable peripheral IP, which can simplify migration and tooling decisions within the NXP ecosystem. The 20-TSSOP package is intended for compact surface-mount assemblies and offers adequate pin access for power, clock, reset, programming, analog, and digital I/O functions. Engineers should assign pins by consulting the manufacturer pin-description table and account for programming and debug requirements in the PCB layout.
Typical uses include industrial sensor interfaces, compact motor-control systems, building and appliance controls, low-cost instrumentation, and small embedded measurement equipment. The analog input and timer resources are particularly useful when a design must monitor changing physical signals while maintaining predictable timing. Compared with a larger MCU, the device offers a smaller 8-bit architecture and a simpler software ecosystem, but it provides less memory and processing capacity for connectivity-heavy or graphics-oriented products.
Design attention should focus on decoupling, clock configuration, programming access, analog-reference integrity, and exposed-pin thermal limitations. Place input and output capacitors close to their associated pins, route sensitive analog signals away from fast-switching nodes, and use the manufacturer reference design as the basis for board-level implementation. This page combines lifecycle information, package details, technical positioning, application guidance, and replacement considerations for faster engineering evaluation.
For sourcing, use the Request a Quote form on this page to request current availability, minimum order quantity, lead time, and package-specific pricing. Because the device is marked NRND, confirm whether an active family member better matches the production program or whether an exception approval is required for continued use.
Alternatives de remplacement direct pour MC9S08PA8VTJ — 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 MC9S08PA8VTJ (même facteur de forme et même empreinte) — différant par CPU Core, Flash Memory, Package, Product Type.
MC9S08PA8VTG
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S08PA8VWJ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S08PA8VTJ Valeurs maximales et caractéristiques électriques
| Product Type | 8-bit S08 microcontroller |
| CPU Core | S08 |
| Maximum CPU Frequency | 20 MHz |
| Flash Memory | 8 KB (8K x 8) |
| Operating Voltage Range | 2.7 V to 5.5 V |
| Plage de température de fonctionnement | -40°C to 105°C |
| Boîtier | 20-TSSOP, 4.40 mm width |
| Type de montage | Surface mount |
| Integrated EEPROM | Yes |
| Analog-to-Digital Converter | Yes |
| Analog Comparator | Yes |
| Motor Control Flex Timer | Yes |
| Programmable I/O | Per datasheet pin configuration |
| Statut du cycle de vie | NRND |
| Clock Frequency | Up to 20 MHz |
Guide de configuration des broches du MC9S08PA8VTJ 20-tssop, 4.40 mm width
Configuration des broches du MC9S08PA8VTJ (boîtier 20-tssop, 4.40 mm width). 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 MC9S08PA8VTJ.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MC9S08PA8VTJ convient pour 6 applications: Industrial Sensor Interface, Compact Motor Control, Appliance and Building Control, Battery-Powered Measurement Module, Cost-Sensitive HMI Controller, Programmable Logic Controller.
Industrial Sensor Interface
The MC9S08PA8VTJ fits industrial sensor interfaces because its integrated ADC, analog comparator, and 20 MHz S08 CPU can acquire and evaluate analog measurements without requiring a separate converter. The 2.7 V to 5.5 V operating range supports 3.3 V and 5 V sensor systems, while the -40°C to 105°C specification covers demanding industrial environments. Use the comparator for fast threshold decisions and the ADC for digitized measurements, while keeping analog routing away from switching nodes. Programming and validation remain compatible with the established S08 development environment.
Recommandé
Compact Motor Control
The MC9S08PA8VTJ is well suited to compact motor-control systems because the S08PA family integrates a motor-control Flex Timer alongside the 8-bit CPU and analog resources. The timer can support deterministic switching and timing functions, while the ADC and comparator can monitor current, position, or speed-related signals. Its 20-TSSOP package helps preserve board area in small appliance and actuator modules. Firmware must confirm the required PWM channels, pin assignments, protection strategy, and timing behavior before production release.
Recommandé
Appliance and Building Control
The MC9S08PA8VTJ can serve as the central controller in an appliance or building-control module where deterministic timing, local sensing, and compact packaging are required. Its 8 KB of flash accommodates focused control firmware, and the integrated analog functions reduce the need for separate sensing circuitry. Operation across 2.7 V to 5.5 V allows integration with common industrial control rails, while the -40°C to 105°C range supports harsh enclosure environments. Use the NRND status to plan a lifecycle transition for high-volume products.
Recommandé
Battery-Powered Measurement Module
The MC9S08PA8VTJ fits low-power measurement modules that need local analog acquisition and flexible control without a high-performance processor. Its 2.7 V minimum operating voltage supports low-voltage system designs, and the 20 MHz S08 core provides useful control throughput for sensor conditioning, filtering, and data preparation. Low-power behavior still depends on the selected clock configuration, peripheral activity, firmware duty cycle, and regulator design. Validate average current and sleep-mode performance with the final sensors and power supply.
Recommandé
Cost-Sensitive HMI Controller
The MC9S08PA8VTJ is appropriate for a cost-sensitive human-machine interface controller when the display and input requirements remain modest. The 8-bit S08 architecture can manage panel scanning, button handling, status logic, and simple display updates, while the ADC and comparator support analog controls or threshold inputs. Its 20-TSSOP package reduces board area compared with many larger MCUs. The product page identifies the device as NRND, so teams should evaluate lifecycle continuity alongside software reuse and hardware fit.
Recommandé
Programmable Logic Controller
The MC9S08PA8VTJ can support small PLC or embedded-control tasks that combine digital inputs, analog monitoring, timers, and deterministic firmware execution. Its 20 MHz S08 core and motor-control Flex Timer provide useful timing resources, while 8 KB of flash is appropriate for focused, compact control logic. The -40°C to 105°C operating range supports industrial environments, but designers must validate input levels, isolation, output drive, watchdog behavior, and expansion requirements. Use the manufacturer pin table to avoid assigning unavailable timer or analog functions.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC9S08PA8VTJ — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MC9S08PA8VTG | MC9S08PA8VWJ |
|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 20-TSSOP | 20-TSSOP | 20-TSSOP |
| Product Type | 8-bit S08 microcontroller | 8-bit S08PA microcontroller | 8-bit S08PA microcontroller |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz |
| Flash Memory | 8 KB (8K x 8) | 8 KB | 8 KB |
| Operating Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Integrated Analog Resources | ADC, analog comparator, EEPROM capability | S08PA integrated ADC, comparator, and EEPROM capability | S08PA integrated ADC, comparator, and EEPROM capability |
| Motor Control Flex Timer | Yes | Yes | Yes |
Principaux différenciateurs
- Integrated analog and timer resources (vs MC9S08PA8VTG)
- Established 20-TSSOP industrial package option (vs MC9S08PA8VWJ)
- Focused 8-bit control platform (vs MC9S08PA8VWJ)
Notes de conception
Place the required input and output decoupling capacitors close to the corresponding 20-TSSOP power and ground pins, and keep the return path short. Route sensitive analog inputs away from timer outputs, switching nodes, and high-current return paths. Before releasing PCB artwork, compare the land pattern, exposed pad treatment, and pin-1 orientation against the manufacturer package drawing for the exact MC9S08PA8VTJ suffix.
Do not assume that all S08PA members are automatically interchangeable because the ordering suffix can affect package, temperature grade, or qualification. Compare MC9S08PA8VTJ, MC9S08PA8VTG, and MC9S08PA8VWJ against the manufacturer ordering information, pin-description table, and electrical limits. Check timer-channel multiplexing and programming signals after any substitution, then rerun firmware and timing tests on the revised board.
Design the supply rail for the full 2.7 V to 5.5 V operating range while accounting for startup current, analog conversion activity, and output-driver loads. Verify brownout and reset behavior in the final power architecture, especially when the MCU controls relays, motors, or other inductive loads. Keep switching-regulator nodes and high-current return paths away from the ADC and comparator input routing to preserve measurement stability.
The 20-TSSOP package limits the available copper area for heat dissipation, so estimate junction temperature from the actual supply voltage, output-switching frequency, GPIO loading, and ambient temperature. Use the maximum permitted pin current and package thermal information from the manufacturer datasheet during this calculation. Increase exposed copper and reduce switching activity when operating near the temperature limit or driving heavily loaded outputs.
Informations de conformité
The NXP product page links environmental and quality information, but explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals declarations were not included in the retrieved product details.
