MC9S08QL4CTJ - 8-Bit 20MHz 4KB Flash MCU | NXP Semiconductors
Teilenummer: MC9S08QL4CTJ ✓ AktivMC9S08QL4CTJ Übersicht
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one package. The 8-bit S08 architecture provides a compact control platform for monitoring inputs, sequencing outputs, and managing simple communication or timing functions. In the system hierarchy, the MC9S08QL4CTJ is a general-purpose microcontroller, a semiconductor device, and a component within embedded control and power-management designs.
The main specifications identify a 4 KB flash program memory, 4K x 8 organization, 20 MHz maximum operating frequency, and 20-pin TSSOP package. NXP describes the S08QL family as providing extreme energy efficiency for portable and battery-sensitive applications. Integrated timers and analog peripherals reduce the number of external components required in small automotive control modules, sensor interfaces, and compact embedded products.
The 1.8 V to 3.6 V operating range supports designs using low-voltage power supplies while retaining a 20 MHz clock-rate option for faster peripheral processing. Because the MCU combines a processor, flash memory, timers, and analog functions, board design should account for stable supply voltage, correct decoupling, programming access, and unused-pin handling. The TSSOP package also requires adequate assembly clearances and a PCB footprint that matches the manufacturer's dimensional drawing.
Typical uses include compact automotive body-control functions, battery-operated sensor nodes, simple motor-control tasks, and low-power monitoring products. The device can be selected when a small 8-bit controller, low-voltage operation, and 4 KB of flash are more important than a large application-specific peripheral set. Its 20-pin TSSOP format also helps reduce board area compared with larger controller packages.
When choosing this MCU, verify the exact pin functions, programming method, electrical limits, and peripheral assignments in the manufacturer datasheet before layout release. This page consolidates the available manufacturer and distributor information and highlights practical selection considerations, application guidance, and sourcing information for engineers evaluating the MC9S08QL4CTJ.
This product page also organizes replacement questions, package considerations, operating-range details, and commercial inquiry guidance into a compact engineering reference. For current availability and quotation, use the Request a Quote form on this page rather than relying on static marketplace pricing.
Drop-in-Alternativen für MC9S08QL4CTJ – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Für dieses Produkt sind keine Drop-in-Alternativen verfügbar.
Alternativen anfordernMC9S08QL4CTJ Grenzwerte & elektrische Eigenschaften
| Product Type | 8-bit S08 microcontroller |
| Maximum Operating Frequency | 20 MHz |
| Flash Memory | 4 KB |
| Flash Organization | 4K x 8 |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Nominal Supply Voltage | 3.3 V |
| Processor Architecture | 8-bit CISC |
| Core Family | S08 |
| Integrated Features | Timers and analog peripherals |
| Power Class | Ultra-low-power |
| Gehäuse | 20-pin TSSOP |
| Package Width | 4.40 mm |
| Montageart | Surface mount |
| Primary Application | Space-constrained automotive applications |
MC9S08QL4CTJ 4.40 mm Pinbelegungsleitfaden
Pinbelegung für MC9S08QL4CTJ (4.40 mm-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für MC9S08QL4CTJ.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
MC9S08QL4CTJ ist geeignet für 6 Anwendungs: Compact Automotive Control Module, Battery-Powered Sensor Node, Low-Power Monitoring Device, Simple Motor or Relay Sequencer, Portable Instrumentation Module, Small Industrial Control Board.
Compact Automotive Control Module
The MC9S08QL4CTJ fits compact automotive control modules that require an 8-bit controller, low-voltage operation, and limited board area. Its 4 KB flash supports a small embedded control program, while integrated timers and analog peripherals can handle timing and sensing functions without requiring several separate devices. The 1.8 V to 3.6 V supply range suits low-energy systems, while the 20-pin TSSOP package reduces footprint compared with larger controller packages. Before production use, confirm the exact temperature grade, automotive qualification, and all electrical limits in the manufacturer documentation.
Empfohlen
Battery-Powered Sensor Node
The ultra-low-power S08QL architecture is suitable for battery-powered sensor nodes that periodically measure a condition and transmit or record the result. The 1.8 V to 3.6 V operating range can support low-voltage energy sources and regulated sensor rails, while the 4 KB flash provides storage for a compact application program. Integrated timers help organize periodic sampling, and analog peripherals can reduce the number of separate signal-conditioning components. Duty-cycling, sleep behavior, and wake-up requirements should be configured and reviewed using the manufacturer low-power guidance.
Low-Power Monitoring Device
The MC9S08QL4CTJ can serve as the control center in a small monitoring device that checks analog inputs, records events, and drives indicators or a communications interface. Its 20 MHz maximum stated frequency provides processing headroom for simple supervisory logic, while the 8-bit architecture keeps firmware and hardware requirements manageable. The 20-pin TSSOP package assists board miniaturization, and the 1.8 V to 3.6 V range supports common low-voltage power systems. Designers should confirm ADC requirements and peripheral assignments directly from the datasheet.
Simple Motor or Relay Sequencer
The MC9S08QL4CTJ is appropriate for basic sequencing duties where timers, discrete outputs, and compact embedded logic are more important than a high-performance processor. Integrated timers can organize fixed sequences or timing intervals, while the low-voltage operating range supports efficient portable or automotive power architectures. Its 20-pin TSSOP footprint leaves room for external drivers, protection, and interface components. Confirm that the selected pin assignments can safely control the load and that all unused inputs are handled according to the manufacturer guidance.
Portable Instrumentation Module
The MC9S08QL4CTJ can support a compact portable instrument that manages sensors, controls a display or status indicator, and operates from a low-energy source. Its 4 KB flash is intended for relatively compact control software, while the maximum stated 20 MHz operating frequency provides margin for routine peripheral handling. The S08QL family's low-power focus and 1.8 V to 3.6 V operating range align with battery-operated measurement products. Validate memory use, timing accuracy, and analog performance during firmware and schematic reviews.
Small Industrial Control Board
The MC9S08QL4CTJ is suitable for small industrial-control boards that perform supervisory functions rather than heavy computation. Integrated timers and analog peripherals support simple sequencing, threshold monitoring, and actuator-control tasks, while the 8-bit processor keeps system requirements economical. The 20-pin TSSOP package is useful where board area is constrained, and the 1.8 V to 3.6 V range allows integration with low-voltage control rails. Industrial suitability should be checked against the device's stated temperature range, isolation needs, and applicable regulatory requirements.
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für MC9S08QL4CTJ – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Designhinweise
Design the supply rail for the stated 1.8 V to 3.6 V operating range and place the recommended input and output decoupling capacitors close to the corresponding pins. Because the complete pinout and capacitor values are not shown on this page, use the manufacturer datasheet and layout guidance before release. Check brownout and clock behavior at the lowest intended supply voltage rather than assuming the nominal 3.3 V condition represents every operating case.
Use the manufacturer TSSOP drawing for land pattern, pin numbering, solder mask, and courtyard. Preserve access to the programming interface and verify that the 20-pin footprint matches the MC9S08QL4CTJ orientation before fabrication. Place decoupling and programming-related components first, then route sensitive analog signals away from fast-changing nodes. Include adequate assembly clearance for the narrow TSSOP body and exposed leads.
Do not treat a microcontroller with the same flash size or clock frequency as a drop-in replacement. A valid substitution must preserve the 20-pin TSSOP footprint, supply pins, programming signals, clock source, timer functions, analog interfaces, and all assigned GPIOs. Also verify interrupt and wake-up behavior, pin multiplexing, and peripheral mappings. If those details cannot be matched, plan a firmware and schematic migration rather than assuming PCB compatibility.
Keep traces carrying sensitive analog signals short and isolate them from switching or high-current paths where the board architecture permits. Use a clear ground reference beneath analog circuitry and follow the manufacturer's recommended component placement. Because the exact analog pins, reference configuration, and recommended layout are not enumerated here, cross-check them against the authoritative pin-description table and application information before fabrication.
Compliance-Informationen
The manufacturer result identifies suitability for automotive applications but does not state the exact AEC-Q100 qualification status, temperature grade, RoHS status, REACH status, lead-free status, halogen-free status, or conflict-minerals policy for this orderable MPN.