MC9S08QE8CPG - 8-Bit 20MHz MCU with 8KB Flash | NXP
N.º de pieza: MC9S08QE8CPG ✗ Fin de vidaMC9S08QE8CPG Descripción general
An 8-bit microcontroller is a programmable integrated circuit designed to execute control logic from embedded software. Its architecture combines a CPU, Flash program memory, RAM, digital I/O, timers, and communication peripherals in one package. The S08 family is positioned within the broader hierarchy of embedded processors, microcontrollers, and semiconductor-based control devices, making it useful for cost-sensitive systems that require deterministic peripheral access without the complexity of a higher-bit processor.
The MC9S08QE8CPG combines a 20 MHz maximum clock speed with 8 KB of Flash and 512 bytes of RAM. Its 1.8 V to 3.6 V operating-supply range supports low-voltage embedded systems, while the 16-pin plastic DIP package simplifies through-hole assembly and prototype work. The NXP product page identifies integrated USB capability as part of the S08QE positioning, making the family relevant to USB-connected consumer accessories and compact control products.
The S08 core provides an 8-bit processing architecture optimized for embedded control tasks. Flash memory retains programmed firmware without requiring a separate external memory device, and the 512-byte RAM provides working space for variables, stack operations, and short-lived data. Compared with larger MCU packages, the 16-pin DIP limits the number of externally accessible I/O pins, so designers should account for programming, debug, clock, reset, and communication requirements before finalizing a board layout.
Typical uses include USB-connected consumer devices, industrial control modules, automotive accessories, keypad interfaces, compact sensor controllers, and low-voltage embedded products. Its small Flash capacity is most appropriate for focused control firmware rather than graphical interfaces, complex protocol stacks, or large data-processing workloads. The 20 MHz clock also supports faster peripheral servicing than many entry-level 8-bit controllers operating at substantially lower frequencies.
For a new PCB, verify every pin function and alternate-function assignment against the manufacturer datasheet before routing signals. A through-hole package reduces assembly sensitivity to fine-pitch soldering, but a new compact design should still include adequate programming access, supply decoupling, a defined reset strategy, and any clock components required by the selected configuration.
This page organizes the verified device characteristics, manufacturer documentation links, commercial inquiry path, and engineering guidance for the MC9S08QE8CPG. It also documents the availability of verified same-footprint alternatives, if any, without presenting a different package or a functionally similar microcontroller as a drop-in replacement.
Alternativas directas para MC9S08QE8CPG — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MC9S08QE8CPG (mismo factor de forma y huella) — difiere en Core, Mounting Type, Package, RAM.
No hay alternativas directas disponibles para este producto.
Solicitar alternativasMC9S08QE8CPG Valores máximos y características eléctricas
| Microcontroller Type | 8-bit S08 microcontroller |
| Maximum Clock Speed | 20 MHz |
| Flash Memory | 8 KB |
| RAM | 512 bytes |
| Operating Supply Voltage Range | 1.8 V to 3.6 V |
| Encapsulado | 16-pin plastic DIP |
| Terminal Count | 16 terminals |
| Tipo de montaje | Through-hole |
| Core | HCS08 S08 8-bit CPU |
| Program Memory Type | Flash |
| I/O Port Count | 28 |
| Temperature Grade | Industrial |
| Power Class | Ultra-low power |
| USB Capability | Integrated USB |
| Lifecycle Stage | Active |
| Manufacturer | NXP Semiconductors |
Guía de configuración de pines de MC9S08QE8CPG 16-pin plastic dip
Configuración de pines para MC9S08QE8CPG (encapsulado 16-pin plastic dip). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para MC9S08QE8CPG.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MC9S08QE8CPG es adecuado para 6 aplicacións: USB Consumer Accessories, Industrial Control Modules, Automotive Accessories, Keypad and User-Interface Control, Compact Sensor Controllers, Protocol Bridge and Communication Interface.
USB Consumer Accessories
The MC9S08QE8CPG fits compact USB accessories that combine device-control firmware with a relatively compact 8 KB Flash budget. Its 20 MHz S08 core provides headroom for servicing USB traffic and coordinating peripheral activity, while the 1.8 V to 3.6 V supply range suits low-voltage powered designs. The 512 bytes of RAM can hold stack state and working variables, but firmware must avoid large buffering and complex application layers. Use the manufacturer data sheet to configure USB clocking, bus pull-ups, and device states, and provide local supply decoupling close to the MCU pins.
Recomendado
Industrial Control Modules
The MC9S08QE8CPG is appropriate for compact industrial control modules that require deterministic embedded logic, modest firmware storage, and low-voltage operation. Its 8-bit S08 core can handle digital sequencing, switch-state evaluation, and peripheral coordination at up to 20 MHz, while the 1.8 V to 3.6 V range integrates well with modern embedded supply levels. The 512-byte RAM requires disciplined allocation, so avoid copying large arrays or buffering complete datasets. Validate the full operating-temperature range, isolation strategy, grounding, and I/O levels before using the device in production machinery.
Recomendado
Automotive Accessories
The MC9S08QE8CPG can support compact automotive accessory and control functions where low voltage, limited firmware capacity, and a small processor are sufficient. Its 20 MHz maximum operating speed allows responsive handling of switch inputs and accessory-control logic, and its 1.8 V to 3.6 V supply range suits low-voltage automotive electronics. The 8 KB Flash and 512 bytes of RAM favor focused control functions rather than gateway or infotainment workloads. Confirm the exact automotive temperature grade, transient requirements, EMC expectations, and lifecycle status before a vehicle-production release.
Recomendado
Keypad and User-Interface Control
The MC9S08QE8CPG is suitable for keypad scanning, debounce logic, indicator control, and compact user-interface state machines. The 20 MHz S08 core provides sufficient instruction throughput for regular matrix scanning, while 512 bytes of RAM can support counters and short state histories. Flash can retain application firmware for calibration values, device profiles, or lookup data when space permits. Keep polling intervals deterministic, debounce processing bounded, and pin assignments consistent with the data sheet. External drivers or level shifters should be added when the target display or switch network exceeds the MCU's available I/O or voltage limits.
Recomendado
Compact Sensor Controllers
The MC9S08QE8CPG can act as the controller for a focused sensor node that performs sampling control, threshold evaluation, status reporting, and local actuation. Its 8-bit architecture and 20 MHz clock are sufficient for many discrete sensor-control tasks without requiring a high-performance application processor. The 512-byte RAM favors streaming or immediate processing rather than history-heavy analytics. Designers should define sensor settling times, acquisition rates, calibration storage, and fault behavior in firmware, then use the manufacturer pin descriptions to allocate the limited 16-pin package resources without sacrificing programming access.
Recomendado
Protocol Bridge and Communication Interface
The MC9S08QE8CPG can support a compact serial or USB communication bridge when the required protocol handling fits within 8 KB of Flash and 512 bytes of RAM. Its 20 MHz S08 core provides enough throughput for lightweight framing, command parsing, and status updates, while the integrated USB positioning makes it relevant to bus-powered adapters. Memory limits make concise state machines and streaming approaches preferable to large receive buffers. Validate USB timing, baud-rate tolerance, interrupt latency, and error recovery against the manufacturer data sheet, and ensure the selected external transceiver matches the interface voltage and direction requirements.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MC9S08QE8CPG — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Brand | NXP Semiconductors |
| Package | 16-pin plastic DIP |
| Architecture | 8-bit |
| Maximum Clock Speed | 20 MHz |
| Flash Memory | 8 KB |
| RAM | 512 bytes |
| Supply Voltage Range | 1.8 V to 3.6 V |
| USB Capability | Integrated USB |
| I/O Port Count | 28 |
| Temperature Grade | Industrial |
Notas de diseño
Design the supply network for the MC9S08QE8CPG across its full 1.8 V to 3.6 V operating range. Place the required bypass capacitors at the pins identified in the manufacturer data sheet and keep the supply-return path short. USB-connected designs must also budget for bus-powered current, pull-up loading, and attached peripheral loads rather than sizing the rail from the MCU's nominal processing requirement alone.
Reserve the programming and debug signals before assigning every available DIP pin to application functions. The 16-pin package limits routing flexibility, so create a pin-allocation table covering power, ground, reset, clock, communication, programming, and user I/O. Follow the official package drawing for lead spacing and drill dimensions rather than relying on a generic DIP footprint.
Do not treat a device with the same memory size as a drop-in substitute. Firmware compatibility can depend on the S08 core implementation, peripheral map, interrupt vectors, memory organization, package pins, and device option bytes. Likewise, a 16-pin SOIC or 20-pin DIP cannot replace the MC9S08QE8CPG on the same PCB. Validate the alternate ordering code against the manufacturer data sheet and complete firmware and hardware regression tests.
Keep USB and other communication routing short, with continuous return paths and minimal stub branches. Although the MCU can operate at 20 MHz, signal quality depends on the selected transceiver, connection topology, and board construction. Follow the applicable interface reference design, maintain recommended spacing between sensitive and high-current paths, and avoid routing communication traces beneath uncertain keep-out or isolation regions.
Información de cumplimiento
No specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was identified for this exact ordering code.
