MC9S08QL8CTG - 8-bit 20MHz Low-Power MCU | NXP
N.º da peça: MC9S08QL8CTG ✗ Fim de vidaMC9S08QL8CTG Visão geral
An 8-bit microcontroller is a compact control IC containing a processor core, program memory, data memory, clock circuitry, and peripherals on one package. The S08 family belongs to the broader hierarchy of microcontrollers, embedded processors, and semiconductor devices. MC9S08QL8CTG combines a small flash-memory footprint with energy-saving modes suited to products that spend substantial time waiting for external events.
The QL8 device provides two ultra-low-power stop modes, low-power run and wait-for modes, a 6 microsecond wake-up time, an ultra-low-power external oscillator, and clock-gating registers for unused peripherals. These features help reduce energy consumption in battery-powered equipment while preserving fast recovery from sleep. Its 1.8 V to 3.6 V operating range also accommodates low-voltage supply designs.
Within the S08QL family, the 20 MHz processor supports general embedded-control workloads, while 8 KB of flash provides room for application firmware. The 512-byte RAM supports working variables and stack operations, but designers should confirm interrupt depth, buffer requirements, and firmware size before committing the part to a new design. The 16-terminal TSSOP package supports compact, surface-mount PCB layouts.
Typical applications include battery-powered sensors, compact appliance controls, low-cost remote controls, metering equipment, simple motor-control interfaces, portable accessories, and embedded timer or event systems. The part is particularly relevant when the system needs deterministic low-power behavior, uncomplicated firmware, and a compact package rather than high computational throughput or a large peripheral set.
Designers should verify the complete pin function, programming method, clock options, and electrical limits in the manufacturer datasheet before layout release. Because the NXP product page identifies this exact orderable MPN as end of life, new production designs should also evaluate an active replacement rather than assume long-term availability.
This page combines the manufacturer's product information, verified distributor listings, lifecycle status, package characteristics, low-power feature details, and a practical selection framework. It also identifies the distinction between the exact end-of-life MPN and possible same-family alternatives that require firmware, memory-capacity, and lifecycle review before substitution.
Alternativas drop-in para MC9S08QL8CTG — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
MC9S08QL4CT
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MC9S08QL2CT
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MC9S08QL8CTG Classificações máximas e características elétricas
| Product Type | 8-bit microcontroller |
| Series | S08QL |
| Maximum CPU Frequency | 20 MHz |
| Flash Memory | 8 KB |
| Program Memory Organization | 8K x 8 |
| RAM | 512 bytes |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Number of Terminals | 16 |
| Encapsulamento | 16-TSSOP |
| Package Body Width | 4.40 mm |
| Terminal Form | Gull wing |
| Tipo de montagem | Surface mount |
| Wake-Up Time | 6 microseconds |
| Low-Power Modes | Two ultra-low-power stop modes plus low-power run and wait-for modes |
| Clock Control | Ultra-low-power external oscillator and clock-gating registers |
| Architecture | 8-bit |
Guia de Configuração de Pinos do MC9S08QL8CTG 4.40 mm
Configuração de pinos para MC9S08QL8CTG (pacote 4.40 mm). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para MC9S08QL8CTG.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
MC9S08QL8CTG é adequado para 6 aplicaçãos: Battery-Powered Sensor Nodes, Portable Accessory Controls, Low-Cost Appliance Interfaces, Battery-Powered Metering, Simple Motor and Relay Control, Compact Remote and Timer Products.
Battery-Powered Sensor Nodes
The MC9S08QL8CTG fits compact sensor nodes that periodically wake, acquire a measurement, and return to a low-power state. Its 20 MHz 8-bit processor provides useful control performance for coordinating sensors and local processing, while the 8 KB flash and 512-byte RAM provide dedicated firmware and working space. The two ultra-low-power stop modes, 6 microsecond wake-up time, and clock gating for unused peripherals can reduce energy consumption between measurements. The 1.8 V to 3.6 V range also permits use with low-voltage cells or regulated battery rails, although the complete power budget must include sensor, regulator, and communications loads.
Portable Accessory Controls
The MC9S08QL8CTG is appropriate for portable accessories requiring a compact embedded controller rather than a high-performance processor. Its 8 KB flash supports a focused application program, and the 20 MHz S08QL core can manage buttons, indicators, simple user interfaces, and state logic. The 16-TSSOP package conserves PCB area, while low-power run, wait-for, and stop modes help the accessory avoid drawing energy continuously. Designers should verify that firmware, stack depth, and any communications buffer fit within the 512-byte RAM before layout release.
Low-Cost Appliance Interfaces
The MC9S08QL8CTG can serve as the low-cost control MCU in appliances and equipment with modest user-interface and sequencing requirements. Its 8-bit architecture and 20 MHz operating frequency are appropriate for button matrices, timers, status LEDs, simple motor or relay sequencing, and sensor conditioning. The 1.8 V to 3.6 V operating range supports compact power architectures, and the TSSOP package simplifies automated board assembly. Because the exact MPN is end of life, appliance programs should validate lifecycle continuity and consider an active MCU family when the product remains in production for many years.
Battery-Powered Metering
The MC9S08QL8CTG suits metering and portable measurement devices that need periodic display updates, event counting, and low standby demand. Its 20 MHz processing speed is sufficient for the control and measurement logic of many compact instruments, while 8 KB of flash can hold firmware and calibration parameters. Two ultra-low-power stop modes and a 6 microsecond wake-up time support designs that remain dormant between measurement cycles. Engineers should calculate the energy associated with the MCU, display, sensor, and communications sections together, and should confirm whether all required peripherals and timers are available on the selected S08QL configuration.
Simple Motor and Relay Control
The MC9S08QL8CTG can coordinate simple actuators, relays, or small motors in cost-sensitive embedded products. Its 20 MHz 8-bit core provides deterministic handling of control sequences, interlocks, timing, and basic sensor feedback without the complexity of a 32-bit MCU. The 16-TSSOP package leaves board space for driver and power components, while low-power modes can reduce consumption when the actuator is inactive. The design must include suitable transistor, flyback, or driver circuitry, and the firmware must account for startup, inrush, fault handling, and any timing limitations of the selected peripherals.
Compact Remote and Timer Products
The MC9S08QL8CTG is a practical fit for simple remote controls, timers, and event-based products with a small display and a limited command set. Its 8 KB flash accommodates a compact application program, and the 512-byte RAM is suitable for lightweight state handling. Low-power stop modes help extend battery life, while the 6 microsecond wake-up time supports responsive recovery from user input. A production design should verify display-interface availability, pin multiplexing, wake sources, programming method, and operating-temperature requirements. For long-life consumer products, an active lifecycle option is generally preferable because the exact MC9S08QL8CTG MPN is identified as end of life.
Dados de referência de engenharia para MC9S08QL8CTG — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MC9S08QL4CT | MC9S08QL2CT |
|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 16-TSSOP | 16-TSSOP | 16-TSSOP |
| Series | S08QL | S08QL | S08QL |
| CPU Frequency | 20 MHz | 20 MHz | 20 MHz |
| Flash Memory | 8 KB | 4 KB | 2 KB |
| Operating Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
Principais diferenciais
- Doubles the flash allocation of the closest lower-memory family option (vs MC9S08QL4CT)
- Provides four times the flash allocation of the smallest listed alternative (vs MC9S08QL2CT)
- Combines a compact package with application-directed low-power controls (vs MC9S08QL4CT)
Notas de projeto
Use the S08QL low-power modes deliberately rather than leaving the processor in a busy loop. Confirm which peripherals can be clock-gated, select the appropriate stop, run, or wait-for state, and measure wake-up energy as well as the advertised 6 microsecond wake-up time. The MCU should remain powered only when its supply can satisfy the 1.8 V to 3.6 V range across temperature and load.
Assign every PCB land from the 16-TSSOP pin-description table and package drawing in the NXP datasheet. Keep traces to supply and ground pins short, provide local decoupling according to the manufacturer application guidance, and preserve the exposed routing space around the gull-wing terminals. Do not infer alternate functions solely from neighboring pins because timer, serial, and debug functions may be multiplexed.
Treat the 8 KB flash and 512-byte RAM as hard design constraints. Check the final linked image size, stack requirement, interrupt nesting, and any serial receive buffers before selecting the MCU. If substituting a lower-flash family member, re-run the complete firmware build and timing tests because reduced program space can change code structure and application behavior.
Estimated: at a 3.6 V supply, 20 MHz operating frequency, and 2 mA average MCU current, the input-side power consumption is approximately 7.2 mW before accounting for GPIO drive and external leakage. Actual dissipation depends on operating mode, pin loading, and the device's electrical characteristics, so measure the assembled design rather than treating this estimate as a guaranteed thermal rating.
Informações de conformidade
No specific RoHS, REACH, lead-free, halogen-free, conflict-minerals, or AEC-Q100 declaration for the exact MPN is included in the manufacturer product information. AEC-Q100 is marked not applicable because the part is not identified as an automotive-qualified variant.