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NXP Semiconductors

S9S12DG12J5CFUE - 16-bit S12 MCU, 128KB Flash, QFP-80 | NXP

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LQFP-80 Package 25 MHz Speed 128 KB Flash Memory
Desde $10.45 USD / unidad
MOQ: 1 |
Precio actualizado: 2026-10-18
Precios por volumen
Cant. Precio unitario Total
1 $18.5 $18,50
10 $16.2 $162,00
100 $13.95 $1.395,00
500 $11.85 $5.925,00
1.000 $10.45 $10.450,00
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S9S12DG12J5CFUE Descripción general

The NXP Semiconductors S9S12DG12J5CFUE is a 16-bit microcontroller from the S12D family built around the HCS12 CPU core, delivering 25 MHz of processing performance with 128 KB on-chip Flash memory and 8 KB RAM, housed in an 80-pin LQFP package qualified over the -40C to +85C industrial/automotive temperature range. The device integrates two asynchronous serial communication interfaces (SCI), one serial peripheral interface (SPI), an 8-channel enhanced capture timer, two 8-channel 10-bit analog-to-digital converters (ADC), and a controller area network (CAN) module, providing a complete peripheral set for automotive body and chassis applications.

An MCU (Microcontroller Unit) is a single-chip computer that integrates a CPU core, program memory, working RAM, and a configurable set of peripheral interfaces on one silicon die. Within the broader semiconductor taxonomy, the S9S12DG12J5CFUE belongs to the hierarchy: microcontroller -> embedded processor -> semiconductor -> integrated circuit. The HCS12 (S12) core is a 16-bit CISC architecture with a rich instruction set, byte-level EEPROM emulation, and a background debug mode (BDM) interface that enables in-circuit, non-intrusive debugging and Flash programming.

Key differentiating features of the S9S12DG12J5CFUE include its 128 KB Flash program memory with byte-erase capability for EEPROM emulation, 8 KB RAM, integrated CAN 2.0 A/B module for in-vehicle networking, dual 10-bit ADC with 1 ms conversion time, and the standard S12 background-debug-mode (BDM) port. The 80-pin LQFP package provides generous I/O (up to 59 general-purpose I/O lines) and is suitable for both hand-soldered prototyping and high-volume automotive SMT assembly lines.

The S12 core architecture uses a 16-bit ALU with accumulator-indexed addressing modes, an interrupt controller with up to 7 priority levels, and a memory management unit that supports a flat 1 MB address space with banked Flash access. The 25 MHz bus clock yields approximately 25 MIPS of performance, suitable for body controllers, instrument clusters, HVAC modules, and simple motor-control loops that do not require a dedicated DSP.

Typical applications include automotive body controllers, HVAC control modules, instrument cluster slaves, CAN node endpoints, and industrial PLCs. The combination of CAN, dual SCI, SPI, and two ADCs makes it a strong fit for any mechatronic node that must interface with analog sensors and the vehicle CAN bus. When designing with this device, ensure the BDM port pins (BKGD, MODC) are accessible for in-circuit programming and that the 5 V analog supply is properly decoupled to achieve the rated ADC accuracy.

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S9S12DG12J5CFUE Valores máximos y características eléctricas

Core HCS12 (S12)
Ancho del bus de datos 16 bit
Frecuencia de reloj máxima 25 MHz
Program Memory Size 128 KB Flash
RAM Size 8 KB
Encapsulado LQFP-80
Temperatura de funcionamiento -40C to +85C
Tipo de montaje Surface Mount
Number of I/O Up to 59
ADC 2 x 8-channel, 10-bit
CAN 1 x CAN 2.0 A/B
SCI (UART) 2
SPI 1
Timers 8-channel IC/OC enhanced capture timer
Debug Interface Background Debug Mode (BDM)
Automotive Qualified Yes
Estado RoHS Compliant

Guía de configuración de pines de S9S12DG12J5CFUE lqfp-80

Configuración de pines para S9S12DG12J5CFUE (encapsulado lqfp-80). 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.

Diagrama de patillaje del encapsulado lqfp-80 para S9S12DG12J5CFUE

No hay datos detallados de patillaje disponibles para S9S12DG12J5CFUE.

Consulte la hoja de datos para ver la configuración completa de patillas.

Aplicaciones típicas

S9S12DG12J5CFUE es adecuado para 6 aplicacións: Automotive Body Control Module, Instrument Cluster Slave Display, HVAC Control Module, Industrial CAN Node, Motor Control (Small BLDC/PMSM), Smart Sensor Hub (Analog + automotive CAN).

🚗

Automotive Body Control Module

The S9S12DG12J5CFUE's 128 KB Flash and 8 KB RAM provide ample code and data space for body control firmware managing lighting, central locking, and wiper control. Its integrated CAN 2.0 A/B controller interfaces directly with the vehicle body network at 500 kbps, and the dual 10-bit ADCs (16 channels total) handle multiple sensor inputs such as switch positions and ambient light sensors. The -40C to 85C operating range and automotive qualification make it suitable for under-dash body controller ECUs where mechanical reliability and AEC-Q100 grade compliance are required. The HCS12 core's BDM interface simplifies end-of-line Flash programming on the assembly line.

📺

Instrument Cluster Slave Display

The S9S12DG12J5CFUE can drive an auxiliary instrument-cluster display or act as a CAN-attached node that aggregates sensor data. Its 25 MHz HCS12 core is fast enough to handle real-time CAN message parsing, while the SPI interface can drive an external LED driver or small graphic display controller. The 10-bit ADC's 1 ms conversion time is suitable for slow-speed analog sensors like fuel level and temperature. The LQFP-80 package fits comfortably behind the dashboard, and the BDM port enables in-vehicle reflashing during recalls.

🏭

HVAC Control Module

HVAC control modules require precise analog measurement of temperature sensors, PWM output for blower motor speed, and CAN communication with the vehicle body controller - a perfect fit for the S9S12DG12J5CFUE. The two 8-channel 10-bit ADCs handle multiple NTC thermistor inputs, while the 8-channel enhanced capture timer generates the PWM signals for actuator control. The CAN module streams HVAC status to the body network, and the two SCI ports provide diagnostic UART connectivity at 115200 bps for factory flash and field service.

🌐

Industrial CAN Node

Industrial CANopen or DeviceNet slave nodes leverage the S9S12DG12J5CFUE's CAN 2.0 A/B controller and 25 MHz HCS12 core to handle real-time fieldbus traffic. The 128 KB Flash accommodates CANopen stack libraries (CANfestival, etc.), while 8 KB RAM is sufficient for process image buffers. The two SCI ports enable RS-232/RS-485 service interfaces, and the SPI port drives external digital I/O expanders. The wide -40C to 85C operating range supports industrial cabinet and outdoor installations.

🏭

Motor Control (Small BLDC/PMSM)

Simple brushless DC or permanent-magnet synchronous motor drives for small pumps and fans fit well within the S9S12DG12J5CFUE's capability envelope. The 8-channel enhanced capture timer provides the PWM channels and input-capture capability needed for back-EMF sensing or Hall sensor decoding. The dual ADCs sample phase voltages and currents synchronously to the PWM period, enabling field-oriented control at moderate speeds. The 25 MIPS HCS12 core runs classic six-step or sinusoidal commutation loops at 10-20 kHz PWM.

🧩

Smart Sensor Hub (Analog + automotive CAN)

The S9S12DG12J5CFUE can serve as a smart sensor hub aggregating multiple analog sensors (pressure, temperature, position) and publishing them on the vehicle CAN bus. Its 16 ADC channels (two 8-channel ADCs) handle up to 16 sensors per node, reducing wiring in sensor-dense applications like seat occupancy detection or chassis position sensing. The CAN module publishes the aggregated data at 100 Hz, and the HCS12's BDM port simplifies end-of-line calibration of the analog front-end scaling factors.

What is the core architecture and clock speed of the S9S12DG12J5CFUE?
The S9S12DG12J5CFUE is built on the NXP HCS12 (S12) 16-bit CISC core and operates at a maximum bus clock of 25 MHz, yielding approximately 25 MIPS. According to the manufacturer datasheet, the S12 core features accumulator-indexed addressing modes, a 7-level interrupt priority controller, and a BDM (Background Debug Mode) interface for in-circuit programming.
How much Flash and RAM does the S9S12DG12J5CFUE have?
The S9S12DG12J5CFUE integrates 128 KB of on-chip Flash program memory with byte-erase support for EEPROM emulation and 8 KB of on-chip SRAM for working variables and stack. According to the manufacturer datasheet, the Flash endurance is rated for typical automotive body-controller workloads.
Is the S9S12DG12J5CFUE still in production?
The S9S12DG12J5CFUE is currently listed as End of Life (EOL) on the NXP product page, meaning it is no longer in active production and is being phased out. Engineers designing new platforms should select an active S12K, S12G, or S12XE successor; for existing designs, remaining inventory is available through distributors.
Where can I buy the S9S12DG12J5CFUE and what is the typical price?
The S9S12DG12J5CFUE is available from authorized distributors including DigiKey, Mouser, and Octopart-listed resellers, though stock is constrained due to its EOL status. As of 2026-10-19, distributor pricing for qty-1 ranges around USD 18.50 with volume discounts available at qty-100 and above.
What is the lead time for the S9S12DG12J5CFUE?
Lead time for the S9S12DG12J5CFUE is unpredictable due to its EOL status; remaining stock is in distribution rather than active production. According to NXP's product page, lead times may stretch into the months range; engineers should confirm current availability with distributors before committing to a new design.
What package does the S9S12DG12J5CFUE ship in?
The S9S12DG12J5CFUE ships in an 80-pin LQFP surface-mount package (LQFP-80). This package style offers generous I/O count for the S12D peripheral set, supports standard SMT reflow profiles, and is compatible with hand-soldered prototypes for low-volume development.
What are the differences between S9S12DG12J5CFUE and MC9S12DG128MPVE?
Both are HCS12 16-bit MCUs from NXP with 128 KB Flash and CAN support, but the MC9S12DG128MPVE is the non-EOL LQFP-112 sibling of the S9S12DG12J5CFUE (80-pin). They share the same S12D peripheral set; the MPVE adds I/O pins and shares the same die family, making it a drop-in firmware-compatible successor.
Can the MC9S12DG128MPVE replace the S9S12DG12J5CFUE on an existing PCB?
No, the MC9S12DG128MPVE uses an LQFP-112 footprint which is physically larger than the S9S12DG12J5CFUE's LQFP-80 footprint; it cannot be placed on the same land pattern without a PCB rework. For a true pin-compatible drop-in, the MC9S12DG128CFUE (LQFP-80) or the older MC9S12DG128VFUE variant are better candidates.
Is the S9S12DG12J5CFUE qualified for automotive applications?
Yes, the S9S12DG12J5CFUE is automotive-qualified by NXP per the product family datasheet, and supports the -40C to +85C operating range. The S12D family was originally designed for body, chassis, and instrument-cluster ECUs, and the integrated CAN 2.0 A/B module supports in-vehicle networking.
What peripherals does the S9S12DG12J5CFUE integrate?
The S9S12DG12J5CFUE integrates two SCI (UART) interfaces, one SPI, one CAN 2.0 A/B controller, an 8-channel enhanced capture timer, and two 8-channel 10-bit ADC modules. According to the datasheet, this peripheral mix is well suited to multi-sensor automotive nodes that must interface with analog inputs and the CAN bus.
Where can I download the S9S12DG12J5CFUE datasheet PDF?
The S9S12DG12J5CFUE datasheet PDF is available at the official NXP product page (https://www.nxp.com/part/S9S12DG12J5CFUE) under the Data Sheet link, and also as the manufacturer document file at https://www.nxp.com.cn/mcds/S9S12DG12J5CFUE.pdf. The PDF includes electrical characteristics, pinout, and reference peripheral register descriptions.
Where can I find the S9S12DG12J5CFUE pinout?
The S9S12DG12J5CFUE pinout is documented in the datasheet on the NXP product page. The LQFP-80 package has 80 pins total, with the BDM (BKGD, MODC) and main oscillator pins located on dedicated package pads; refer to the datasheet figure for the exact physical pin numbering.
What is the difference between the S12D and S12XE families?
The S12D family is the original 16-bit HCS12 MCU with up to 128 KB Flash and CAN 2.0, while the S12XE family (e.g., MC9S12XEQ384CAG) extends the architecture with the XGATE co-processor for DMA-style peripheral processing, larger Flash up to 1 MB, and more CAN channels. The S12XE is the natural upgrade path for designs that need more peripheral offloading or memory.
What is the best Freescale equivalent for the S9S12DG12J5CFUE?
The best Freescale/NXP equivalent is the MC9S12DG128VFUE (LQFP-80, 128 KB Flash, same peripheral set) for a true drop-in footprint match. For designs that can absorb a footprint change, the S12XEP100 (LQFP-112) or MC9S12XEQ384CAG (LQFP-144) provide an active production migration path with the XGATE co-processor.
Is the S9S12DG12J5CFUE the same as the MC9S12DG128CFUE?
Functionally, the S9S12DG12J5CFUE and MC9S12DG128CFUE are members of the same S12D 16-bit MCU family and share the same S12 core, 128 KB Flash, 8 KB RAM, and CAN + dual-ADC peripheral set. The 'S' prefix on S9S12DG12J5CFUE denotes the NXP/Freescale-rebranded automotive slice; the MC9S12DG128CFUE uses the same LQFP-80 footprint and is the preferred active-production drop-in.

Datos de referencia de ingeniería para S9S12DG12J5CFUE — comparación, orientación de diseño e información de cumplimiento.

Guía de selección

Choose the S9S12DG12J5CFUE only for sustaining an existing automotive body/chassis design where the firmware has already been validated against this exact MPN - new designs should select the MC9S12DG128VFUE or MC9S12DG128CFUE (active production, same LQFP-80 footprint, identical peripheral set). The 'S9S' prefix on this part indicates the automotive-qualified slice, making it the right choice when an AEC-Q100 grade variant is required and stock is available. For designs that can absorb a larger footprint, migrate to the S12XE family (e.g., MC9S12XEQ384CAG) for higher performance and the XGATE co-processor, or to the S12G family (e.g., S912XET512BMAGR) for lower power consumption. Avoid the LQFP-112 MPVE/PVE suffixes for drop-in replacement - those are different footprints requiring PCB rework.

Comparación con alternativas

Parámetro Este producto Alt 1 Alt 2 Alt 3
Brand NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors
Package LQFP-80 LQFP-80 - same LQFP-80 - same LQFP-80 - same
Core HCS12 16-bit HCS12 16-bit HCS12 16-bit HCS12 16-bit
Clock Frequency 25 MHz 25 MHz 25 MHz 25 MHz
Flash 128 KB 128 KB 128 KB 128 KB
RAM 8 KB 8 KB 8 KB 8 KB
CAN 1 x CAN 2.0 A/B 1 x CAN 2.0 A/B 1 x CAN 2.0 A/B 1 x CAN 2.0 A/B
Operating Temperature -40C to +85C -40C to +85C -40C to +85C -40C to +85C
Lifecycle Status EOL Active Active Active

Diferenciadores clave

  • Wide automotive operating temperature range with AEC-Q100 slice options (frente a MC9S12DG128VFUE)
  • Drop-in pin-compatible LQFP-80 footprint with active-production successors (frente a MC9S12DT128MPVE)
  • Dual 8-channel ADC plus CAN 2.0 A/B on a single die (frente a MC9S08DZ60F1CLH)

Notas de diseño

The S9S12DG12J5CFUE requires a clean +5 V analog supply (VDDA) and a separate +5 V digital supply (VDDR) for the ADC to achieve the rated 10-bit accuracy. Decouple VDDA with a 10 uF bulk + 100 nF ceramic placed within 5 mm of the package pin. Add a ferrite bead between VDDR and VDDA to isolate digital switching noise from the analog reference.

Route the BDM (BKGD, MODC) pins to a 2x3 or 1x6 header on the PCB edge for in-circuit programming and debug access. Keep BDM traces short (<50 mm) and avoid routing them adjacent to switching power or motor driver signals. The 25 MHz crystal oscillator traces must be surrounded by a ground guard ring to minimize EMI susceptibility.

Do not exceed the maximum supply voltage of 5.5 V on VDDR or VDDA - automotive load-dump transients require an external TVS clamp on the supply input. The PLL reference frequency must be within the datasheet-specified 1-25 MHz reference voltage expected range, and the FLASH security byte must be programmed last to prevent accidental lockout.

Información de cumplimiento

RoHS
Compliant
REACH
Compliant
AEC-Q100
Qualified
Libre de plomo
Yes
Libre de halógenos
Yes
Minerales en conflicto
Compliant

Automotive-qualified S12D family per NXP/Freescale datasheet. RoHS and REACH compliant; AEC-Q100 grade dependent on exact slice variant. End of Life (EOL) status means last-time-buy only.

Datos verificados el: 2026-10-19 — datos verificados y seleccionados por el equipo de ingeniería de componentes de XAIPART

Búsquedas relacionadas

S9S12DG12J5CFUE S9S12DG12J5CFUE datasheet NXP S9S12DG12J5CFUE S12D 16-bit MCU 128KB Flash LQFP-80 automotive CAN microcontroller 25MHz MC9S12DG128 vs S9S12DG12J5CFUE S9S12DG12J5CFUE drop-in replacement S9S12DG12J5CFUE buy price stock S9S12DG12J5CFUE pinout LQFP-80 HCS12 automotive body controller MCU S9S12DG12J5CFUE end of life equivalent Freescale S12D 128KB Flash automotive

Componentes & términos relacionados

NXP Semiconductors Freescale Semiconductor S9S12DG12J5CFUE MC9S12DG128VFUE MC9S12DG128CPVE MC9S12DG128CFUE MC9S12DT128MPVE MC9S12XEQ384CAG HCS12 core 16-bit microcontroller MCU microcontroller unit embedded processor S12D family LQFP-80 LQFP package LQFP-112 CAN 2.0 A/B CAN bus 10-bit ADC BDM Background Debug Mode AEC-Q100 RoHS REACH automotive body controller instrument cluster HVAC module industrial CAN node motor control
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