MC9S08SL8CTJ - 8-Bit 40MHz S08 MCU, 8KB Flash | NXP
N.º de pieza: MC9S08SL8CTJ ✗ Fin de vidaMC9S08SL8CTJ Descripción general
A microcontroller is a programmable semiconductor that integrates a CPU, memory, and peripherals into one device. The S08 family belongs to the HCS08 architecture and combines the HC08 instruction set with an added BGND instruction. Within the product hierarchy, MC9S08SL8CTJ is an 8-bit embedded MCU, a cost-focused member of the S08SL family designed for compact control and communication products.
The principal features include 8KB of flash, 512B of RAM, a 40MHz HCS08 CPU, 16 I/O ports, and a 16-channel, 10-bit ADC. It also provides support for up to 32 interrupt and reset sources. An embedded slave LIN controller is especially useful in cost-sensitive automotive and industrial networks, while EEPROM supports parameter storage without using scarce flash program space.
The operating voltage range is 2.7V to 5.5V, allowing connection to common 3.3V and 5V systems. The industrial temperature range is -40°C to +85°C. Its 20-TSSOP package has a stated width of 4.40mm, making the device suitable for compact PCB layouts where a larger plastic package would be undesirable.
Typical applications include LIN-connected slave nodes, small motor-control modules, keypad-based user interfaces, appliance controls, sensor-conditioning equipment, and cost-sensitive consumer products. The integrated keyboard interface is particularly useful in products with a small number of switches, while the ADC supports direct connection of analog sensors.
When laying out a design, begin with the manufacturer's pin-description and recommended application schematics. Place decoupling capacitors close to the supply pins, route the analog input traces away from switching nodes, and confirm that the external programming and debug arrangement matches the chosen S08 development system. Although the device is listed as NRND by NXP, it remains relevant for maintenance and continuation of existing embedded designs.
This page combines the manufacturer product information with an engineering-focused review of memory, analog conversion, connectivity, package constraints, lifecycle considerations, and practical design decisions. It also identifies the limits of drop-in replacement evidence so engineers can distinguish confirmed compatibility from parts that merely use a similar package or belong to a related MCU family.
Alternativas directas para MC9S08SL8CTJ — 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 MC9S08SL8CTJ (mismo factor de forma y huella) — difiere en Package, Connectivity, Flash Memory, RAM, RoHS Status.
No hay alternativas directas disponibles para este producto.
Solicitar alternativasMC9S08SL8CTJ Valores máximos y características eléctricas
| Device Type | 8-bit microcontroller (MCU) |
| Product Family | S08SL |
| CPU Core | S08 core / HCS08 CPU |
| Architecture | 8-bit |
| Maximum Clock Speed | 40 MHz |
| Flash Memory | 8KB |
| RAM | 512 B |
| EEPROM | Present |
| Operating Voltage Range | 2.7 V to 5.5 V |
| ADC Resolution | 10 bit |
| ADC Channels | 16 channels |
| I/O Ports | 16 |
| Interrupt and Reset Sources | Up to 32 |
| Communication Interface | Embedded slave LIN interface controller (SLIC) |
| Human Interface | Integrated keyboard interface |
| Rango de temperatura de funcionamiento | -40°C to +85°C |
| Encapsulado | 20-TSSOP, 4.40 mm width |
| Tipo de montaje | Surface mount |
| Estado del ciclo de vida | NRND |
Guía de configuración de pines de MC9S08SL8CTJ 20-tssop, 4.40 mm width
Configuración de pines para MC9S08SL8CTJ (encapsulado 20-tssop, 4.40 mm width). 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 MC9S08SL8CTJ.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MC9S08SL8CTJ es adecuado para 6 aplicacións: LIN Slave Control Modules, Keypad-Based Appliance Controls, Industrial Sensor Conditioning, Cost-Sensitive Consumer Products, Small Motor and Relay Control, Battery-Powered Portable Instruments.
LIN Slave Control Modules
The MC9S08SL8CTJ fits LIN slave nodes because its embedded slave LIN interface controller removes the need for a separate external LIN transceiver interface in suitable network designs. Its 40MHz S08 core provides processing headroom, while 8KB flash and 512B RAM are sufficient for compact protocol handling, diagnostics, and local control functions. The 2.7V to 5.5V operating range also supports both 3.3V and 5V vehicle or industrial equipment architectures. Designers should review the manufacturer's reference schematic and pin table to configure the LIN physical interface correctly.
Recomendado
Keypad-Based Appliance Controls
The integrated keyboard interface makes the MC9S08SL8CTJ appropriate for appliances and compact instruments controlled by a matrix of switches. Its 16 I/O ports and 10-bit ADC can support user input, analog sensing, and local actuator control without requiring a high-end processor. With 8KB flash, 512B RAM, and EEPROM available, the device can hold operating logic, calibration information, and simple product-state data. Firmware should debounce keys and define wake behavior, while the layout should keep switch traces away from sensitive analog and supply nodes.
Recomendado
Industrial Sensor Conditioning
The MC9S08SL8CTJ can serve as the controller in a compact industrial sensing module because it combines a 16-channel, 10-bit ADC with a 40MHz S08 core. The 2.7V to 5.5V supply range supports common industrial signal levels, and the -40°C to +85°C rating suits controlled equipment environments. Use separate analog and digital return paths, place the ADC input network close to the MCU, and calibrate gain and offset in firmware. Its EEPROM is useful for retaining sensor configuration across power cycles.
Recomendado
Cost-Sensitive Consumer Products
The MC9S08SL8CTJ targets cost-sensitive consumer products where an 8-bit controller is sufficient and board area matters. Its 20-TSSOP package, 8KB flash, 512B RAM, GPIO, ADC, and EEPROM provide a compact platform for simple household controls, personal-care devices, and accessory products. The 40MHz operating capability allows responsive event handling without a higher-cost MCU. Design teams should avoid adding unnecessary memory headroom because the same package and 2.7V to 5.5V supply range can support a cost-optimized bill of materials.
Recomendado
Small Motor and Relay Control
The MC9S08SL8CTJ can manage compact relay, solenoid, or small-motor control boards where deterministic event handling and several digital outputs are required. Its 16 I/O ports, 40MHz CPU, and 16-channel, 10-bit ADC allow control and basic feedback functions to share one device. The MCU should not drive inductive loads directly; use suitable driver transistors, flyback protection, and isolation from sensitive analog inputs. Account for relay-coil supply demands and inductive switching transients in the power budget and decoupling strategy.
Recomendado
Battery-Powered Portable Instruments
The MC9S08SL8CTJ is suitable for compact portable instruments that need modest processing, data acquisition, and local control. Its 8KB flash and 512B RAM can support focused firmware, while EEPROM can preserve settings without continuously writing flash. Operating from 2.7V to 5.5V allows use with common regulated supplies and battery-management designs. For low-power operation, place peripherals in their inactive states, disable unused conversion channels, and follow the datasheet guidance for clock and sleep modes before estimating battery life.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MC9S08SL8CTJ — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Package | 20-TSSOP, 4.40 mm width |
| Brand | NXP Semiconductors |
| CPU Architecture | 8-bit HCS08 / S08 core |
| Maximum Clock Speed | 40 MHz |
| Flash Memory | 8KB |
| RAM | 512 B |
| Operating Voltage Range | 2.7 V to 5.5 V |
| ADC | 16 channels, 10-bit resolution |
| I/O Ports | 16 |
| Communication Interface | Embedded slave LIN interface controller |
| Operating Temperature Range | -40°C to +85°C |
| Lifecycle Status | NRND |
Diferenciadores clave
- Integrated slave LIN controller (frente a MC9S08EL16CTJ)
- Compact 20-TSSOP implementation (frente a MC9S08EL16CTJ)
- Integrated analog and human-interface resources (frente a MC9S08EL16CTJ)
Notas de diseño
Design the supply rail for the complete 2.7V to 5.5V operating range and place the required bypass capacitors next to the corresponding supply and ground pins. Separate MCU supply routing from loads such as relays, LEDs, or motors so their transients do not corrupt ADC readings. Check input and output absolute maximum ratings against the manufacturer pin table before connecting external signals. A common 3.3V or 5V rail is suitable, but the selected regulator must also meet the load transients generated by the complete board.
Keep the 16-channel ADC inputs away from switching nodes, relay contacts, high-current return paths, and long digital traces. Use a quiet ground reference for analog inputs and route analog and digital return currents separately where practical. Place input filtering components near the ADC pins or their source connectors, and follow the manufacturer's recommended application layout. Because the package has only 20 terminals, review alternate pin multiplexing before finalizing the board layout.
Do not treat a related S08 device as a drop-in replacement solely because it has a similar package name. Verify all 20 terminal assignments, supply limits, ADC channels, timer resources, interrupt mapping, reset behavior, EEPROM emulation, and programming interface against the manufacturer documentation. The available comparison data identifies functional differences among S08-family devices, so an unqualified substitution can cause a board revision or firmware rewrite.
Información de cumplimiento
The NXP product page lists the device as NRND but does not provide the compliance declarations needed for extraction. Confirm RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status from the current manufacturer product-change and environmental-compliance documentation.
