MC9S12B128MFU - 16-Bit 50MHz 128KB Flash MCU | NXP
Teilenummer: MC9S12B128MFU ✗ Abgekündigt| Menge | Stückpreis | Gesamt |
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MC9S12B128MFU Übersicht
A microcontroller is a semiconductor that integrates a processor core, nonvolatile program memory, data memory, timers, communication interfaces, and input/output ports onto one device. Within the product hierarchy, the MC9S12B128MFU is a 16-bit MCU, a flash-based embedded controller, and an automotive-oriented system-on-chip. Its integration reduces external component count while providing dedicated resources for body, vehicle-network, and industrial control functions.
The verified source data identifies a 50 MHz operating frequency, 16-bit architecture, and 128 KB organized as 128K x 8 flash memory. The family documentation states that MC9S12B devices are designed for automotive multiplexing applications and are fully pin compatible, enabling different memory and peripheral options within a scalable design platform. That family-level compatibility is useful when products need common hardware across multiple MCU variants.
The 80-QFP mechanical format provides a fine-pitch surface-mount solution with external pins on all four sides. Compared with a higher pin-count ball-grid-array package, the QFP simplifies visual inspection, rework, and prototype assembly, although it requires careful board-level escape routing. Its 14 x 14 mm body saves board area relative to many larger legacy packages while remaining compatible with established automated assembly processes.
Typical uses include automotive body-control modules, multiplexing controllers, sensor-interface nodes, actuator controllers, and other embedded systems that benefit from a deterministic 16-bit architecture. In these systems, the MCU can acquire sensor inputs, execute control logic, manage timers and communication events, and drive external circuitry from a single integrated device. Detailed peripheral assignments, voltage limits, memory-map behavior, and electrical conditions must be confirmed in the manufacturer datasheet before design release.
When laying out a new board, preserve the package land pattern, pin assignment, power distribution, decoupling, programming access, and exposed support-network requirements of the exact ordered device. Do not assume that every member of the MC9S12B family is a drop-in replacement solely because the family is pin compatible; memory capacity, package suffix, clocking, peripherals, and software device configuration can differ.
This page consolidates verified distributor specifications, family-level application context, sourcing information, and design cautions. It also separates known facts from unavailable data rather than estimating unverified electrical limits, pricing, pin functions, lifecycle status, or cross-device compatibility.
Drop-in-Alternativen für MC9S12B128MFU – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit MC9S12B128MFU (gleiche Bauform und Footprint) – abweichend in Package, Connectivity, Core Processor, Lifecycle Status, Maximum Clock Frequency.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
MC9S12DJ128BCFU
✅ Drop-In✓ Auf Lager
$8.4 / Stück
Datenblatt ansehen →MC9S12DJ128VFUE
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$29.9635 / Stück
Datenblatt ansehen →MC9S12DJ128CPVE
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$19.75 / Stück
Datenblatt ansehen →MC9S12B128MFU
✅ Drop-In✓ Auf Lager
Preis auf Anfrage
Datenblatt ansehen →MC9S12HZ128VAL
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$10.4 / Stück
Datenblatt ansehen →MC9S12B128MFU Grenzwerte & elektrische Eigenschaften
| Product Type | 16-bit flash-based microcontroller |
| Microcontroller Family | MC9S12B family |
| CPU Architecture | 16 bit |
| Maximale Taktfrequenz | 50 MHz |
| Flash Memory | 128 KB (128K x 8) |
| Package Type | 80-pin QFP |
| Package Body Size | 14 x 14 mm |
| Montageart | Surface mount |
| Application Category | Automotive multiplexing applications |
| Family Pin Compatibility | Fully pin-compatible within documented MC9S12B family options |
| Program Memory Type | Flash |
MC9S12B128MFU 14 x 14 mm Pinbelegungsleitfaden
Pinbelegung für MC9S12B128MFU (14 x 14 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 MC9S12B128MFU.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
MC9S12B128MFU ist geeignet für 6 Anwendungs: Automotive Body-Control Module, Vehicle Multiplexing Controller, Sensor Acquisition and Conditioning, Actuator and Relay Control, Industrial Embedded Controller, Timing-Critical Control Module.
Automotive Body-Control Module
The MC9S12B128MFU fits distributed body-control logic because its verified 16-bit architecture runs at 50 MHz and includes 128 KB of flash for control software, while the MC9S12B family is explicitly associated with automotive multiplexing. It can coordinate digital inputs, timer-based functions, diagnostic logic, and actuator commands in a centralized module or a smaller remote node. The 80-QFP provides 80 external pins for systems that need more routing options than a small leadless package. Before schematic release, verify supply voltage, I/O limits, wake and reset behavior, communication peripherals, temperature grade, and automotive qualification in the exact datasheet.
Empfohlen
Vehicle Multiplexing Controller
The MC9S12B128MFU is a natural fit for a vehicle-multiplexing node because the verified family documentation names automotive multiplexing as a target use. Its 50 MHz 16-bit core can execute deterministic protocol and I/O-state logic, while 128 KB of flash provides room for application code and configuration tables. The device should be placed where inputs from switches, sensors, and other network nodes are consolidated before being forwarded or acted upon. Exact CAN or other network capability, protocol support, timing behavior, and pin multiplexing must be verified because they are not included in the supplied search snippets.
Empfohlen
Sensor Acquisition and Conditioning
MC9S12B128MFU can serve as a sensor-interface controller when the system requires deterministic sampling, digital filtering, threshold logic, and local fault handling. Its verified 50 MHz clock provides computational margin for coordinating timers, interrupts, status flags, and communications, while 128 KB of flash can hold firmware for calibration tables and device-specific behavior. The 80-pin QFP offers more physical connections than a small leadless MCU, which can simplify routing of sensor inputs and actuator outputs. Analog front-end accuracy is not established by the supplied data, so sensor excitation, ADC specifications, input bandwidth, and calibration requirements must come from the exact datasheet.
Empfohlen
Actuator and Relay Control
The MC9S12B128MFU can coordinate relays, solenoids, indicators, and other discrete actuators through a controller platform that executes at 50 MHz. The verified 128 KB flash capacity supports embedded sequencing, diagnostics, debounce logic, and lookup data, while the 80-pin QFP provides a larger pin budget for shared signal multiplexing. Because output drive current, flyback protection needs, inductive-load limits, and exact I/O topology are absent from the verified data, the MCU should not be assumed to drive loads directly. Use suitable drivers and protection networks, and validate every output against the manufacturer electrical limits before layout.
Empfohlen
Industrial Embedded Controller
MC9S12B128MFU is applicable to legacy or extended-life industrial control equipment when its verified 50 MHz 16-bit core, 128 KB flash, and 80-pin QFP match the installed platform. It can execute sequencing logic, manage discrete sensors, supervise actuators, and retain control firmware without external program memory. The QFP format also supports serviceable, inspectable assemblies commonly used in industrial electronics. Industrial adoption should first verify supply range, temperature range, watchdog and reset behavior, communications, EMC requirements, and long-term availability. The verified web result supports sourcing, but it does not establish current lifecycle status.
Empfohlen
Timing-Critical Control Module
The MC9S12B128MFU's verified 50 MHz clock and 16-bit architecture support timing-critical sequencing, event counting, debounce handling, and deterministic state-machine control. Its 128 KB flash is sufficient for many compact embedded applications without requiring an external memory device, while the QFP package exposes a broad pin set for timers and digital interfaces. Performance claims still depend on the verified peripheral clocking, interrupt latency, timer resolution, and bus architecture in the manufacturer documentation. Engineers should build a timing budget, confirm peripheral availability, and test worst-case interrupt and communication behavior on production-intent silicon.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für MC9S12B128MFU – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | MC9S12DJ128BCFU | MC9S12DJ128VFUE | MC9S12DJ128CPVE | MC9S12HZ128VAL |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
Wichtigste Unterscheidungsmerkmale
- Verified performance identity (vs. MC9S12DJ128BCFU)
- Documented family use case (vs. MC9S12DJ128VFUE)
- Sourcing visibility (vs. MC9S12HZ128VAL)
Designhinweise
Do not begin layout from a generic 80-QFP footprint. Obtain the exact package drawing and pin table for MC9S12B128MFU, then verify pin 1 orientation, lead pitch, body dimensions, solderable lead length, and land-pattern tolerances. The verified source establishes a 14 x 14 mm 80-pin QFP but not the individual pin functions. Route escape lines before placing fine-pitch circuitry, preserve perimeter clearance for inspection, and confirm that the assembly process supports the selected QFP geometry.
Confirm supply-voltage limits, absolute maximum ratings, I/O pin limits, power sequencing, and reset requirements from the exact manufacturer documentation before connecting external circuitry. The supplied snippets do not include voltage values, so no numerical rail or decoupling recommendation can be verified. Use the datasheet-specified power and ground pins, place required decoupling according to its recommended layout, and include appropriate protection where industrial or automotive transients can enter the board.
Do not treat a shared S12-family name as proof of software- or board-level equivalence. A replacement must match the package, pin mapping, clock architecture, flash and RAM organization, peripheral resources, electrical conditions, programming model, and qualification. Even if the MC9S12B family is described as fully pin compatible, memory and peripheral options can differ. Run hardware regression, firmware retargeting, timing checks, boundary-condition tests, and production programming tests on any proposed substitute.
Plan the board around verified clock, reset, programming, and communication signals before assigning the remaining I/O. The 80-pin QFP provides many externally accessible leads, but fixed pin multiplexing can constrain a safe replacement even when lead positions match. Separate potentially noisy or high-current paths from sensitive sensor and timing nets, maintain return paths for switched loads, and follow the manufacturer's guidance for decoupling, external crystals or resonators, and test points.
Compliance-Informationen
The verified snippets do not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. Automotive multiplexing is an application statement, not proof of AEC-Q100 qualification.