MC9S08PT8VLD - 8-Bit 20MHz S08P MCU | NXP Semiconductors
MPN： MC9S08PT8VLD ✗ 停產MC9S08PT8VLD 概覽
A microcontroller is a programmable integrated circuit that combines a processor core, memory, and peripherals on one semiconductor die. The MC9S08PT8VLD belongs to the S08 family of 8-bit microcontrollers and is positioned within the broader hierarchy of embedded processors, microcontrollers, and semiconductor control devices. Its 5 V operating environment and reusable S08 core, intellectual property, and development tools support migration across related S08 products.
The principal device characteristics include an 8-bit CPU, 20 MHz operating frequency, and 8 KB flash memory organized as 8K by 8 bits. Integrated touch-sensing interface support can reduce the component count of capacitive user-interface panels, while EEPROM provides nonvolatile storage for calibration, configuration, or product-specific parameters. The flexible timer and motor-control resources support deterministic control functions in appliance, user-interface, and industrial equipment.
The MC9S08PT8VLD is designed for embedded systems where deterministic peripherals and compact control are more important than high processor bandwidth. Because it uses the S08 architecture, software can reuse established S08 code, peripherals, and tool workflows. Its 5 V family targets appliance and user-interface environments, and the manufacturer states that the scalable, pin-compatible MCU family supports straightforward migration between compatible S08 products.
Typical applications include capacitive-touch control panels, appliance controllers, small motor-control systems, industrial user interfaces, and embedded products that need EEPROM-backed configuration. The integrated touch interface is useful when a PCB must detect user inputs through capacitive electrodes, while the motor-control timer simplifies deterministic switching tasks. Developers should still evaluate timer channels, I/O availability, and interrupt requirements for the specific product configuration.
A key design consideration is the device's NRND lifecycle status. Existing products can continue using the MC9S08PT8VLD when its exact qualification, software, and supply requirements are satisfied, but new designs should evaluate the manufacturer-recommended successor and verify its electrical, pin, memory, peripheral, and software compatibility. Package documentation should also be checked against the specific ordering code because public listings describe its QFP variant inconsistently.
This page organizes the verified device characteristics, lifecycle state, sourcing information, and engineering considerations into a practical engineering reference. It also distinguishes documented facts from missing technical details, helping designers assess fit, plan firmware reuse, and decide when an NRND device should be retained in an existing platform rather than selected for a new design.
直接替換替代品，適用於 MC9S08PT8VLD — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此產品無可直接替換的替代品。
申請替代品MC9S08PT8VLD 最大額定值與電氣特性
| Product Type | 8-bit microcontroller |
| Processor Family | S08P |
| CPU Architecture | 8-bit S08 core |
| 最大時脈頻率 | 20 MHz |
| Flash Memory | 8 KB (8K x 8 bits) |
| Program Memory Type | Flash |
| Integrated EEPROM | Present |
| Touch-Sensing Interface | Present |
| Motor-Control Timing Resource | Flex timer module |
| Nominal Supply Voltage | 5 V |
| 封裝 | QFP |
| Package Dimensions | 7 mm x 7 mm |
| 安裝類型 | Surface mount |
| 生命週期狀態 | NRND |
| Appliance Safety Reference | IEC 60730 |
| Programming Interface Compatibility | Reuses existing S08 core, IP, and tools |
MC9S08PT8VLD 7 mm x 7 mm 腳位配置指南
MC9S08PT8VLD（7 mm x 7 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： MC9S08PT8VLD.
請參閱 資料表 以查看完整腳位配置。
典型應用
MC9S08PT8VLD 適用於 6 應用s: Capacitive Touch Appliance Controls, Small Motor Control Systems, Appliance Control Panels, Industrial User Interfaces, Embedded Configuration and Sensor Hubs, Legacy S08 Platform Maintenance.
Capacitive Touch Appliance Controls
The MC9S08PT8VLD fits capacitive control panels because its integrated touch-sensing interface can evaluate user electrodes directly from the controller. The 20 MHz S08 core provides enough timing capability for debouncing, filtering, and panel state management, while 8 KB of flash stores application code and EEPROM can retain calibration or configuration values. A typical implementation assigns touch functions to the touch peripheral, connects the sensing network according to the manufacturer's guidance, and uses an S08 interrupt service routine to update the appliance state. Verify the supported channel count, electrode configuration, and acquisition timing in the exact device documentation.
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Small Motor Control Systems
The MC9S08PT8VLD is suitable for small, deterministic motor-control subsystems because its flexible timer provides a dedicated framework for generating and timing control waveforms. The 8-bit S08 core can execute position, speed, or sequence logic while 8 KB of flash accommodates the control firmware and EEPROM stores persistent settings. In a typical appliance or actuator design, the timer drives the switching stage while the MCU monitors position or speed inputs and reacts to faults. The controller still needs suitable gate-drive, sensing, protection, and power-conversion circuitry, and motor-current requirements must remain within the system's electrical limits.
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Appliance Control Panels
The MC9S08PT8VLD fits appliance control panels that combine user input, EEPROM-backed configuration, and deterministic peripheral control. Its 5 V S08P positioning aligns with household and light-commercial equipment, while the touch-sensing interface supports capacitive buttons or sliders without a separate controller. The 20 MHz core can coordinate panel scanning, indicator control, communications, and actuator commands, and the 8 KB flash limit makes efficient firmware organization important. Confirm temperature range, EMC requirements, safety certification responsibilities, and power-supply tolerances before releasing the appliance design.
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Industrial User Interfaces
The MC9S08PT8VLD can serve as the local controller in a compact industrial user interface when the design needs capacitive controls and nonvolatile configuration rather than high-bandwidth processing. Its 8-bit S08 core, 20 MHz clock, and 8 KB flash provide deterministic handling of touch input, indicators, and simple machine-interface signals. EEPROM is useful for storing calibration values, menu settings, or serial numbers across power cycles. Because the manufacturer marks the device NRND, new industrial products should also evaluate the recommended successor and verify long-term availability, temperature limits, functional safety responsibilities, and lifecycle-change notifications.
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Embedded Configuration and Sensor Hubs
The MC9S08PT8VLD is appropriate for a compact embedded hub that gathers simple digital inputs, applies control logic, and retains configuration in EEPROM. The 20 MHz S08 core can support interrupt-driven sampling and protocol handling, while 8 KB of flash constrains the application to a focused control function rather than a large connectivity stack. A practical design could monitor switches or sensors, validate the data, update persistent settings, and provide status indicators. The exact peripheral count, I/O map, and interrupt behavior must be confirmed against the device documentation, particularly when adding mixed-voltage sensor interfaces.
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Legacy S08 Platform Maintenance
The MC9S08PT8VLD is valuable for maintaining an established S08 platform because the manufacturer describes a scalable, pin-compatible family that reuses the S08 core, IP, and tools. Its 8 KB flash and 20 MHz clock preserve the architecture of existing appliance, interface, and control products, allowing qualified software and peripheral expertise to be retained during maintenance. In a repair or continuation program, engineers should reproduce the original device's power, clock, debug, touch, timer, and I/O connections and verify the exact package drawing. For volume extensions, request the manufacturer's recommended supply and successor plan because the target is NRND.
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工程參考資料，適用於 MC9S08PT8VLD — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 |
|---|---|
| Manufacturer | NXP Semiconductors |
| Package | QFP, 7 mm x 7 mm |
| CPU Architecture | 8-bit S08 core |
| Maximum Clock Frequency | 20 MHz |
| Flash Memory | 8 KB (8K x 8 bits) |
| Integrated EEPROM | Present |
| Touch-Sensing Interface | Present |
| Lifecycle Status | NRND |
| Family Migration Support | Scalable and pin-compatible S08 family with reusable core, IP, and tools |
主要差異化特點
- Integrated user-interface sensing and persistent data support (對比MC9S08PA8VLC)
- 20 MHz S08 core with 8 KB flash (對比MC9S08QE32CLCR)
- S08P family positioned for 5 V appliance and user-interface systems (對比MC9S08FL8CLC)
設計說明
Do not treat a generic QFP footprint as a valid substitute layout. Public listings disagree on whether the target ordering code is associated with a 32-pin or 44-pin QFP, so the PCB footprint, exposed pad, pin numbering, and courtyard must be checked against the official MC9S08PT8VLD package drawing. Also verify power, ground, reset, clock, debug, timer, touch-sensing, and I/O assignments. A mechanically similar package can still require PCB changes and different firmware.
Design the 5 V supply path around the device's specific input-voltage and current requirements from the manufacturer data sheet. Place the required bypass capacitors close to their designated supply and ground pins, provide a clean return path, and keep switching or motor-drive power stages physically separated from sensitive touch and control signals. Verify startup, brownout behavior, and regulator transient response against the system load before releasing the power design.
Apply the manufacturer layout guidance for touch-sensing electrodes and acquisition circuitry. Keep touch traces short, protect them from noisy motor-drive and switching nodes, route them away from high-current edges, and use a quiet ground reference. Include the documented shielding or filtering arrangements where required. Because touch performance depends on electrode geometry, enclosure materials, and grounding, validate the assembled product rather than relying only on schematic connectivity.
The NRND status should be treated as a product-lifecycle constraint, not merely a stock condition. Before extending production, obtain the NXP product change notice, recommended successor, last-time-buy information if applicable, and supply commitments. If firmware is migrated to another S08 device, verify startup, interrupt vectors, timer channels, touch acquisition, EEPROM emulation, watchdog behavior, and package pin mapping rather than assuming that family-level compatibility guarantees identical behavior.
合規資訊
The manufacturer product information associates the 5 V S08P family with IEC 60730 appliance-safety requirements, but no explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration for MC9S08PT8VLD was included.
