MC9S08QL4CTG - 8-Bit 20MHz 4KB MCU | NXP Semiconductors
N.º da peça: MC9S08QL4CTG ✗ Fim de vidaMC9S08QL4CTG Visão geral
An 8-bit microcontroller is a compact embedded-processing component that combines a processor core, program memory, data memory, clocking, and peripherals such as GPIO, timers, serial interfaces, and analog or timing functions on one integrated circuit. Within the broader semiconductor hierarchy, the MC9S08QL4CTG belongs to the S08 family of 8-bit microcontrollers and is designed for low-cost, low-power control tasks rather than high-performance computing.
The principal device characteristics include an 8-bit architecture, 20 MHz maximum clock frequency, 4 KB flash storage organized as 4K x 8, and a 3 V-class operating range of 1.8 V to 3.6 V. Its 16-TSSOP package supports compact surface-mount PCB construction. The low-power positioning of the S08QL family makes the MCU applicable to portable instruments, simple appliance controls, low-cost sensor nodes, and compact user-interface assemblies where energy efficiency and component size are important.
The MC9S08QL4CTG belongs to a family architecture that emphasizes low-power operation for embedded designs. Because the exact peripheral inventory, RAM capacity, pin assignments, and clocking options for this ordering code are not reproduced in the available product snippets, engineers should use the manufacturer datasheet and product page to confirm the resources required by the firmware and PCB design before release.
Typical applications include battery-powered sensing equipment, compact appliance controllers, simple keypads, LED status indicators, and low-cost industrial monitoring modules. In each case, the 20 MHz processing rate provides adequate headroom for event-based control and basic serial communications, while the 16-pin package reduces board area compared with larger leaded or high-pin-count MCU packages.
The main engineering consideration is lifecycle risk: NXP identifies MC9S08QL4CTG as end of life. Use the product page's discontinuation and replacement information to evaluate migration, and use the Request a Quote form on this page for current availability and sourcing support. This page also organizes the known electrical, package, lifecycle, and application information with engineering-oriented design guidance.
Alternativas drop-in para MC9S08QL4CTG — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Nenhuma alternativa drop-in disponível para este produto.
Solicitar alternativasMC9S08QL4CTG Classificações máximas e características elétricas
| Product Type | 8-bit S08 microcontroller |
| Maximum CPU Frequency | 20 MHz |
| Flash Memory | 4 KB (4K x 8) |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Nominal Supply Class | 3 V |
| Encapsulamento | 16-TSSOP (0.173 in, 4.40 mm width) |
| Tipo de montagem | Surface mount |
| Core Family | S08 |
| Product Series | S08QL |
| Application Class | Low-power, battery-sensitive embedded control |
| Moisture Sensitivity Level | MSL 3 |
| Maximum Time at Peak Reflow Temperature | 40 s |
| Peak Reflow Temperature | 260 C |
| Terminal Finish | Tin |
| JESD-609 Code | e3 |
Guia de Configuração de Pinos do MC9S08QL4CTG 16-tssop (0.173 in, 4.40 mm width)
Configuração de pinos para MC9S08QL4CTG (pacote 16-tssop (0.173 in, 4.40 mm width)). 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 MC9S08QL4CTG.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
MC9S08QL4CTG é adequado para 6 aplicaçãos: Battery-Powered Sensing Node, Compact Appliance Controller, Low-Cost LED Indicator Panel, Portable Environmental Monitor, Simple Industrial Interface Module, Cost-Sensitive Human Interface Board.
Battery-Powered Sensing Node
The MC9S08QL4CTG fits compact battery-powered sensor nodes because the S08QL family targets low-power portable products and operates from 1.8 V to 3.6 V. Its 20 MHz 8-bit processor can manage sensor acquisition, filtering, status logic, and low-rate serial reporting without a high-performance processor. The 16-TSSOP package also preserves PCB area for the sensor, battery interface, and protection components. The 4 KB flash budget suits compact firmware with event-driven routines rather than large local data storage. Confirm RAM, available timers, serial interfaces, and wake-up behavior in the complete datasheet before finalizing the power architecture and duty cycle.
Recomendado
Compact Appliance Controller
The MC9S08QL4CTG is suitable for small appliance controllers where an 8-bit MCU must coordinate switches, indicators, timers, and a user interface within a limited board area. A 20 MHz clock provides practical performance for basic control logic, while the 1.8 V to 3.6 V operating range supports low-voltage system partitioning. The 16-TSSOP package supports automated surface-mount assembly but requires careful thermal and copper planning. Confirm the exact GPIO count and available timers for the ordering code, then reserve isolation, snubbing, and flyback components for inductive loads rather than driving them directly from MCU pins.
Recomendado
Low-Cost LED Indicator Panel
The MC9S08QL4CTG can manage a small LED indicator, keypad, or status-display subsystem in cost-sensitive equipment. Its 8-bit architecture is sufficient for debouncing inputs, multiplexing indicators, updating a display, and maintaining simple operating modes, while the 20 MHz clock leaves margin for interrupt-driven control. The 16-TSSOP footprint supports compact boards, and operation down to 1.8 V permits shared low-voltage rails. Confirm the package pin assignments and available I/O before allocating display and switch functions, and account for LED current limits, keypad bounce, and ground-return paths in the layout.
Recomendado
Portable Environmental Monitor
The MC9S08QL4CTG fits a portable environmental monitor that periodically reads sensors, applies basic calculations, and reports results through a low-speed interface. Its 3 V-class 1.8 V to 3.6 V operating range supports both primary cells and regulated low-voltage rails, while the 8-bit core handles acquisition sequencing and simple threshold logic. The small 16-TSSOP package leaves room for the sensing circuitry and enclosure. Engineer the firmware around the constrained 4 KB flash capacity, retain data only when necessary, and verify the exact RAM and peripheral resources for the ordering code before implementing display or communications buffers.
Recomendado
Simple Industrial Interface Module
The MC9S08QL4CTG can serve as the local controller in a small industrial interface module that converts commands into sensor readings, status LEDs, or limited actuator control. Its 20 MHz 8-bit processing rate is appropriate for basic protocol handling and event-driven state management, and the 16-TSSOP package simplifies compact PCB assembly. The 1.8 V to 3.6 V operating range requires the module’s field interface to use compatible signal levels or isolation. Before deployment, verify temperature limits, ESD requirements, isolation strategy, watchdog availability, and any regulatory constraints; the end-of-life status also makes a documented migration plan essential.
Recomendado
Cost-Sensitive Human Interface Board
The MC9S08QL4CTG is appropriate for a dedicated cost-sensitive human-interface board handling buttons, encoders, indicators, and a serial link to a main controller. Its 8-bit core is adequate for scanning inputs and maintaining deterministic simple interface behavior, while the 16-TSSOP package reduces board width. Operation from 1.8 V to 3.6 V allows the board to share a low-voltage logic rail when the upstream interface supports it. Validate the exact I/O allocation and peripheral mapping in the datasheet, use series resistors or suitable protection on externally accessible inputs, and keep high-current display or haptic drivers away from the MCU supply pins.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MC9S08QL4CTG — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto |
|---|---|
| Brand | NXP Semiconductors |
| Package | 16-TSSOP (0.173 in, 4.40 mm width) |
| Architecture | 8-bit S08 |
| Maximum CPU Frequency | 20 MHz |
| Flash Memory | 4 KB (4K x 8) |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Lifecycle Status | End of Life |
| Primary Application | Low-power portable embedded control |
Principais diferenciais
- Low-voltage 3 V-class operating range (vs MC9S08PL4CTG)
- Compact 16-TSSOP implementation (vs MC9S08PL4CTG)
- Purpose-built low-power S08QL positioning (vs MC9S08PL4CTG)
Notas de projeto
Do not treat every S08-family device as an electrical substitute for the MC9S08QL4CTG. The product is a 3 V-class S08QL device with a 1.8 V to 3.6 V operating range, while the separately identified MC9S08PL4CTG belongs to the 5 V S08P family. Pin compatibility, shared processor intellectual property, or shared development tools do not by themselves establish that a different voltage-class device can be substituted without changing the board power architecture.
Design the supply rail and decoupling around the 1.8 V to 3.6 V operating range. Place the required input and bypass capacitors at the package power pins and keep return-current paths short, particularly when the MCU drives LED indicators, relays, or other switching loads. Verify brownout, reset, and startup behavior in the completed power architecture, and avoid assuming that a 5 V-tolerant input condition makes the entire MC9S08QL4CTG system suitable for 5 V operation.
Use the 16-TSSOP land pattern and the manufacturer package drawing when finalizing the PCB footprint. Confirm pin 1 orientation against the assembly drawing, provide adequate spacing between adjacent pads for soldering and inspection, and route sensitive clock or communication lines away from high-current switching nodes. Because the exact pin list is not shown here, assign every power, ground, programming, reset, and I/O connection from the pin-description table in the manufacturer datasheet.
The 16-TSSOP package is compact, so copper area and local thermal paths become important when the MCU operates continuously or drives external circuitry through nearby components. Keep high-dissipation regulators, relays, and power switches thermally separated from the MCU and sensitive analog sections. Review the datasheet's absolute maximum ratings and power-consumption guidance using the actual clock, load, and ambient conditions, and include thermal validation for any enclosure that restricts convection.
Plan for the device's end-of-life status before production release. The NXP product page provides discontinuation and replacement information, but no drop-in substitute should be introduced solely from a generic cross-reference result. Create a migration checklist covering package geometry, supply voltage, flash and RAM, timer resources, serial interfaces, reset and programming pins, clock behavior, interrupt mapping, and existing firmware dependencies. Freeze the final schematic only after these items have been checked against the selected MCU.
Informações de conformidade
The available product records provide package-level JESD-609 code e3, tin terminal finish, MSL 3, and a stated 260 C peak-reflow temperature. They do not explicitly establish RoHS, REACH, halogen-free, conflict-minerals, or AEC-Q100 status.
