MC9S08AC8CFGE - 40MHz 8-bit MCU with 8KB Flash | NXP
N.º de pieza: MC9S08AC8CFGE ✗ Fin de vida| Cant. | Precio unitario | Total |
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| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
MC9S08AC8CFGE Descripción general
An 8-bit microcontroller is a compact embedded-processing semiconductor that executes firmware from nonvolatile Flash memory while using general-purpose I/O to monitor inputs and operate external devices. The HCS08 S08AC core combines a simple 8-bit architecture with a high peripheral integration level, placing the MCU in the broader hierarchy of embedded controller, semiconductor, and industrial-control electronics. This makes the MC9S08AC8CFGE suitable for appliances, instrumentation, access controls, and small automation systems.
Verified features include a 40 MHz clock, 8 KB of 8K x 8 Flash, and 4 KB of RAM. Its 44-LQFP package provides 34 I/O ports according to one verified product listing, while another secondary record reports 38 I/O ports; this discrepancy must be resolved against the manufacturer datasheet before a new PCB is released. A 4-channel ADC supports analog measurement, and the listed serial interfaces allow communication with sensors, displays, actuators, and external controllers.
The S08 architecture emphasizes economical embedded control rather than high compute throughput. Firmware execution, memory use, clock settings, peripheral configuration, and pin multiplexing must be checked against the manufacturer data sheet for the exact suffix and temperature grade. Because NXP marks the product as end of life, production planning should account for limited future supply and formal lifecycle review before committing to long-running designs.
Typical uses include compact motor and relay controllers, analog sensor acquisition, keypads, serial bridges, lighting controls, industrial interface modules, and cost-sensitive consumer equipment. The 44-LQFP package is easy to prototype with accessible leads, but its relatively large footprint requires more board area than a modern fine-pitch package. Existing S08 software and toolchain investment can make replacement planning more important than simply adopting a newer MCU architecture.
A robust design should verify all supply rails, oscillator connections, reset behavior, exposed programming pins, and ADC reference requirements before layout. Preserve the supported programming interface and include recovery access in the board test plan. For an EOL redesign, treat firmware compatibility, tooling availability, and last-time-buy timing as primary engineering constraints alongside electrical equivalence.
This page consolidates verified distributor and manufacturer information with practical replacement and design guidance. It does not invent unavailable electrical limits, pin assignments, prices, or cross references, and clearly identifies missing data where the supplied records conflict or remain incomplete.
Alternativas directas para MC9S08AC8CFGE — 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 MC9S08AC8CFGE (mismo factor de forma y huella) — difiere en Package, Core, Operating Temperature Range, RoHS Status, Flash Memory.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
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Solicitar alternativasMC9S08AC8CFGE Valores máximos y características eléctricas
| Product Type | 8-bit HCS08 microcontroller |
| Series | S08AC |
| Frecuencia de reloj máxima | 40 MHz |
| Internal Bus Frequency | 20 MHz |
| Flash Memory | 8 KB (8K x 8) |
| RAM Memory | 4 KB |
| ADC Channels | 4 channels |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Encapsulado | 44-LQFP, 10 mm x 10 mm |
| Tipo de montaje | Surface mount |
| I/O Port Count | 34 ports |
| Rango de temperatura de funcionamiento | -40 °C to +85 °C |
| Packaging Method | Tray |
| Program Memory Type | Flash |
| CPU Architecture | HCS08 8-bit |
| Serial Interfaces | Serial interfaces |
| Estado RoHS | RoHS compliant |
| Estado del ciclo de vida | End of life |
Guía de configuración de pines de MC9S08AC8CFGE 44-lqfp, 10 mm x 10 mm
Configuración de pines para MC9S08AC8CFGE (encapsulado 44-lqfp, 10 mm x 10 mm). 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 MC9S08AC8CFGE.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MC9S08AC8CFGE es adecuado para 7 aplicacións: Industrial Sensor Acquisition, Compact Appliance Controller, Access Control Module, Serial Interface Bridge, LED Lighting Control, Laboratory Instrument Control, Battery-Powered Sensor Node.
Industrial Sensor Acquisition
The MC9S08AC8CFGE fits compact sensor modules that must convert a small number of analog inputs and exchange results through a serial link. Its verified 4-channel ADC, 8-bit HCS08 architecture, 8 KB of Flash, and 4 KB of RAM are sufficient for calibrated sampling, filtering, threshold decisions, status reporting, and local configuration. The 44-LQFP package also leaves 44 physical terminals for power, communications, programming, control outputs, and external interfaces. Because the lifecycle is end of life, retain the MCU only in a controlled legacy design or when redesign qualification is not practical.
Recomendado
Compact Appliance Controller
The MC9S08AC8CFGE can manage appliances where a deterministic 8-bit controller handles buttons, relays, indicators, and a few analog inputs. The verified 40 MHz clock provides timing headroom for firmware tasks, while 8 KB of Flash holds control code and 4 KB of RAM supports state variables and communication buffers. Its serial interfaces can connect to displays or sensors, and the 4-channel ADC can monitor temperature or supply-related conditions. Designers must verify actual pin multiplexing, electrical limits, and code-generation support before committing to a new appliance platform.
Recomendado
Access Control Module
The MC9S08AC8CFGE is suitable for legacy credential readers, keypad controllers, relay drivers, and alarm interfaces because it combines an 8-bit CPU with Flash, RAM, ADC, serial interfaces, and many package pins. Firmware can scan inputs, debounce keys, evaluate a credential decision, drive indicators, report events, and supervise a lock. The 44-LQFP package is useful for prototype visibility but requires more PCB area than a fine-pitch alternative. For new security equipment, evaluate current NXP devices and secure hardware requirements rather than extending this end-of-life MCU platform.
Recomendado
Serial Interface Bridge
The MC9S08AC8CFGE can serve as a protocol-conversion or telemetry bridge when a legacy system needs to mediate between a host and embedded peripherals. Its verified serial interfaces, 8-bit CPU, 4 KB of RAM, and 8 KB of Flash allow buffering, framing, timeout handling, and command translation. The 44-LQFP package provides sufficient external connections for UART-style communication, logic-level interfaces, reset, indicators, and programming access. Firmware and peripheral assignments must be checked against the manufacturer data sheet, particularly because the supplied records do not specify every serial-module variant.
Recomendado
LED Lighting Control
The MC9S08AC8CFGE can coordinate lighting effects, timing, dimming commands, and sensor-driven behavior in compact LED fixtures. Its verified 40 MHz S08 processor, 4 KB of RAM, serial connectivity, and 44-LQFP terminal count support real-time control logic and external driver interfaces. An LED driver design must keep the MCU rail clean, provide stable timing, and isolate high-current switching stages from sensitive control signals. The MCU itself does not replace an LED power-conversion stage; it supervises it, so suitable driver topology, protection, and thermal design remain separate engineering requirements.
Recomendado
Laboratory Instrument Control
The MC9S08AC8CFGE is technically relevant to legacy laboratory instruments that acquire a small number of analog channels and report measurements through serial interfaces. Its verified 4-channel ADC and 8 KB of Flash support calibration tables, acquisition sequencing, diagnostics, and command handling, while 4 KB of RAM can hold samples and protocol state. For precision measurements, verify ADC resolution, acquisition timing, reference voltage, accuracy, and noise specifications that are not present in the supplied data. Because the MCU is end of life, new instruments should compare it with supported current devices before development begins.
Recomendado
Battery-Powered Sensor Node
The MC9S08AC8CFGE can support a legacy low-power sensor node when its exact sleep modes, active current, and wake-up sources are confirmed in the manufacturer data sheet. The verified 2.7 V to 5.5 V operating range and 4-channel ADC support sensing from modest power rails, while serial interfaces can report readings to a gateway. The 40 MHz clock is useful during short active intervals, but battery-life design must include regulator quiescent current and wake-up behavior that are not supplied. Consider the end-of-life status and require long-term supply assurance before using it in new remote-monitoring products.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MC9S08AC8CFGE — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Diferenciadores clave
- Verified legacy S08AC control resource set (frente a Modern general-purpose MCUs)
- Visible 44-terminal prototype package (frente a Fine-pitch or BGA microcontrollers)
- Supply compatibility for established 2.7 V to 5.5 V systems (frente a Higher-voltage or lower-voltage replacement devices)
Notas de diseño
Design the supply rails around the verified 2.7 V to 5.5 V device operating range, but do not infer pin-specific connections or absolute maximum ratings from that range. Confirm the NXP pinout, decoupling recommendations, analog reference requirements, and debug or programming power states in the manufacturer data sheet. Since the MCU is end of life, preserve the original power architecture and test behavior across input tolerances to avoid relying on an unverified migration part.
Treat the 44-LQFP package as a complete 44-terminal footprint only after checking the official package drawing and terminal numbering. The supplied sources conflict between 34 and 38 I/O ports, so a reconstructed pin table is unsafe. Before fabrication, compare oscillator, reset, programming, power, ground, ADC, serial, and alternate-function pins against the exact NXP document. Include programming and recovery access in production-test hardware and fixture design.
Do not assume that a similarly named S08AC device is pin-compatible. MC9S08AC8MFGE is a useful comparison candidate because it appears in the site list, but its package suffix differs and the supplied data contains no verified cross-reference. Compare memory, pin functions, peripherals, electrical limits, clocking, package dimensions, firmware support, and lifecycle. If any pin changes, classify the move as a redesign rather than a drop-in replacement and plan PCB and firmware regression testing.
Keep analog-sensing routes away from switching nodes and high-current return paths, and place supported bypass components close to their assigned pins after the exact pinout is verified. Confirm the oscillator layout and grounding from the manufacturer recommendations because those details are absent from the supplied records. Validation should cover startup, reset, ADC readings, serial communication, programming, and supply noise. Do not freeze placement until all 44 package terminals and their alternate functions are confirmed.
Información de cumplimiento
A secondary verified technical record describes the device as RoHS compliant. No authoritative supplied data establishes REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status.
