MC9S12DB128CFUE - HCS12 16-Bit 25MHz 128KB Flash MCU | NXP | 80-QFP
N.º de pieza: MC9S12DB128CFUE ✗ Fin de vida| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $22.5 | $22,50 |
| 10 | $20.25 | $202,50 |
| 100 | $18 | $1.800,00 |
| 500 | $16.5 | $8.250,00 |
| 1.000 | $14.85 | $14.850,00 |
MC9S12DB128CFUE Descripción general
An HCS12 microcontroller is a 16-bit CISC automotive MCU family from Freescale/NXP designed for distributed body and chassis control networks. The HCS12 sits within the broader taxonomy: 16-bit microcontroller -> automotive MCU -> embedded MCU -> semiconductor IC. Its 16-bit datapath and rich on-chip peripherals reduce external component count compared to 8-bit microcontrollers while remaining lower-cost than 32-bit ARM-based auto MCUs.
Key features of the MC9S12DB128CFUE include 128KB on-chip Flash (128K x 8), 2KB EEPROM for non-volatile data storage, 8KB RAM, an integrated CAN 2.0 module, dual SCI (UART) channels, SPI and IIC interfaces, an 8-channel 10-bit ADC, and a PWM module with up to 8 channels. The 'DB' suffix indicates the inclusion of the byte-level EEPROM emulation and enhanced CAN controller that distinguishes this sub-family from the base S12D.
Architecture-wise, the HCS12DB uses a 16-bit CISC core with enhanced indexed addressing and a Background Debug Mode (BDM) interface, supporting non-intrusive in-circuit debugging. The 25MHz bus provides 40ns minimum instruction cycle. Integrated voltage regulator and PLL reduce external analog complexity. ECC on Flash improves automotive reliability.
Typical applications include automotive body control modules, door/window/seat modules, instrument cluster slave MCUs, HVAC control panels, and CAN-node gateway controllers in multiplexed vehicle networks. Industrial equivalents use it for sensor interfaces and CAN-bus distributed I/O. Compact industrial control nodes benefit from its integrated CAN and 16-bit ADC.
Design consideration: the QFP-80 package requires careful thermal copper-pour management on inner vias for high-current GPIO drive conditions. When migrating between S12DB family members, verify interrupt-vector mapping and BDM clocking differ across mask sets.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not consolidated on the manufacturer datasheet PDF.
Alternativas directas para MC9S12DB128CFUE — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MC9S12DB128CFUE (mismo factor de forma y huella) — difiere en Package, ADC, Core, Program Memory Size, Debug Interface.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MC9S12DB128BUE
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC9S12E128CFUE
✅ Sustitución directa✓ En stock
$10.65 / unidad
Ver hoja de datos →MC9S12A128CFUE
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
MC9S12DG128CFUE
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC9S12C128CFUE
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC9S12GC128MFUE
✅ Sustitución directa✓ En stock
$7.1 / unidad
Ver hoja de datos →MC9S12DB128CFUE Valores máximos y características eléctricas
| Core | HCS12 (16-bit CISC) |
| Processor Series | S12D / HCS12DB |
| Ancho del bus de datos | 16 bit |
| Frecuencia de reloj máxima | 25 MHz |
| Program Memory Size | 128 KB (128K x 8) FLASH |
| RAM Size | 8 KB |
| EEPROM Size | 2 KB |
| Tensión de alimentación | 2.5 V / 5 V |
| Encapsulado | 80-QFP (14x14 mm) |
| Tipo de montaje | Surface Mount |
| Terminal Form | Gull Wing |
| No. of Terminals | 80 |
| Temperatura de funcionamiento | -40C to +85C (industrial) |
| Integrated ADC | 8-channel, 10-bit |
| CAN Module | 1 x CAN 2.0 |
| SCI (UART) Modules | 2 |
| SPI Modules | 1 |
| IIC Modules | 1 |
| PWM Channels | Up to 8 |
| Debug Interface | Background Debug Mode (BDM) |
Configuración de pines de MC9S12DB128CFUE
| Pin 1 | VRH — ADC analog reference high |
| Pin 2 | VRL — ADC analog reference low |
| Pin 3 | VDDA — Analog supply voltage |
| Pin 4 | VSSA — Analog ground |
| Pin 5 | PAD0/AN00 — Port AD bit 0 / ADC channel 0 |
| Pin 6 | PAD1/AN01 — Port AD bit 1 / ADC channel 1 |
| Pin 7 | PAD2/AN02 — Port AD bit 2 / ADC channel 2 |
| Pin 8 | PAD3/AN03 — Port AD bit 3 / ADC channel 3 |
| Pin 9 | PAD4/AN04 — Port AD bit 4 / ADC channel 4 |
| Pin 10 | PAD5/AN05 — Port AD bit 5 / ADC channel 5 |
| Pin 11 | PAD6/AN06 — Port AD bit 6 / ADC channel 6 |
| Pin 12 | PAD7/AN07 — Port AD bit 7 / ADC channel 7 |
| Pin 13 | PE0/XIRQ — Port E bit 0 / external interrupt request |
| Pin 14 | PE1/IRQ — Port E bit 1 / interrupt request |
| Pin 15 | PE2 — Port E bit 2 |
| Pin 16 | PE3 — Port E bit 3 |
| Pin 17 | PE4/ECLK — Port E bit 4 / E-clock output |
| Pin 18 | PE5/MODA — Port E bit 5 / mode select A |
| Pin 19 | PE6/MODB — Port E bit 6 / mode select B |
| Pin 20 | PE7/RESET — Port E bit 7 / RESET input |
| Pin 21 | VSSX1 — External ground 1 |
| Pin 22 | VDDX1 — External supply 1 (5V) |
| Pin 23 | BKGD — Background Debug Mode data |
| Pin 24 | PA0 — Port A bit 0 |
| Pin 25 | PA1 — Port A bit 1 |
| Pin 26 | PA2 — Port A bit 2 |
| Pin 27 | PA3 — Port A bit 3 |
| Pin 28 | PA4 — Port A bit 4 |
| Pin 29 | PA5 — Port A bit 5 |
| Pin 30 | PA6 — Port A bit 6 |
| Pin 31 | PA7 — Port A bit 7 |
| Pin 32 | VSSX2 — External ground 2 |
| Pin 33 | VDDX2 — External supply 2 (5V) |
| Pin 34 | PB0 — Port B bit 0 |
| Pin 35 | PB1 — Port B bit 1 |
| Pin 36 | PB2 — Port B bit 2 |
| Pin 37 | PB3 — Port B bit 3 |
| Pin 38 | PB4 — Port B bit 4 |
| Pin 39 | PB5 — Port B bit 5 |
| Pin 40 | PB6 — Port B bit 6 |
| Pin 41 | PB7 — Port B bit 7 |
| Pin 42 | PC0 — Port C bit 0 |
| Pin 43 | PC1 — Port C bit 1 |
| Pin 44 | PC2 — Port C bit 2 |
| Pin 45 | PC3 — Port C bit 3 |
| Pin 46 | PC4 — Port C bit 4 |
| Pin 47 | PC5 — Port C bit 5 |
| Pin 48 | PC6 — Port C bit 6 |
| Pin 49 | PC7 — Port C bit 7 |
| Pin 50 | VSSX3 — External ground 3 |
| Pin 51 | VDDX3 — External supply 3 (5V) |
| Pin 52 | PJ0/SDA — Port J bit 0 / IIC SDA |
| Pin 53 | PJ1/SCL — Port J bit 1 / IIC SCL |
| Pin 54 | PJ2 — Port J bit 2 |
| Pin 55 | PJ3 — Port J bit 3 |
| Pin 56 | PJ4 — Port J bit 4 |
| Pin 57 | PJ5 — Port J bit 5 |
| Pin 58 | PJ6 — Port J bit 6 |
| Pin 59 | PJ7 — Port J bit 7 |
| Pin 60 | PK0 — Port K bit 0 |
| Pin 61 | PK1 — Port K bit 1 |
| Pin 62 | PK2 — Port K bit 2 |
| Pin 63 | PK3 — Port K bit 3 |
| Pin 64 | PK4 — Port K bit 4 |
| Pin 65 | PK5 — Port K bit 5 |
| Pin 66 | PK6 — Port K bit 6 |
| Pin 67 | PK7 — Port K bit 7 |
| Pin 68 | PM0 — Port M bit 0 (memory expansion) |
| Pin 69 | PM1 — Port M bit 1 (memory expansion) |
| Pin 70 | CAN_TX — CAN transmit output |
| Pin 71 | CAN_RX — CAN receive input |
| Pin 72 | SCK0/PS0 — SPI0 clock / PWM channel 0 |
| Pin 73 | MOSI0/PS1 — SPI0 master-out / PWM channel 1 |
| Pin 74 | MISO0/PS2 — SPI0 master-in / PWM channel 2 |
| Pin 75 | SS0/PS3 — SPI0 slave-select / PWM channel 3 |
| Pin 76 | TXD0 — SCI0 transmit |
| Pin 77 | RXD0 — SCI0 receive |
| Pin 78 | TXD1 — SCI1 transmit |
| Pin 79 | RXD1 — SCI1 receive |
| Pin 80 | VSSR — Internal regulator ground |
Aplicaciones típicas
MC9S12DB128CFUE es adecuado para 7 aplicacións: Automotive Body Control Module, Door and Seat Module Slave MCU, HVAC Control Panel ECU, Instrument Cluster CAN Slave, Industrial CAN-Node Distributed I/O, Sensor Interface and Bridge Module, Lighting and LED Driver Controller.
Automotive Body Control Module
The MC9S12DB128CFUE is ideally suited for distributed automotive body control modules (BCMs) that orchestrate lighting, door locks, and accessory relays over a CAN-bus backbone. Its integrated CAN 2.0 controller, 2KB byte-erasable EEPROM for storing per-vehicle VIN and fault history, and 8-channel 10-bit ADC for analog switch inputs make it a single-chip solution for body-electronics nodes. The 128KB Flash supports full CAN-based OTA-style firmware updates. Compared with 8-bit MCUs in this role, the 16-bit CISC core handles OSEK/OSEKtime RTOS scheduling with 40ns interrupt latency at 25MHz, and the QFP-80 package with 0.65mm pitch supports high-vibration automotive PCB reflow processes.
Recomendado
Door and Seat Module Slave MCU
In automotive door and seat modules the MC9S12DB128CFUE serves as a slave MCU that aggregates window lift switches, mirror position sensors, and seat-occupancy inputs before reporting over CAN to the BCM master. The 8KB SRAM is sufficient for debounced switch scanning buffers, while the 2KB EEPROM stores trim and position memory per driver profile. The integrated dual SCI (UART) interfaces allow diagnostic UART plus LIN-substitute communication. Pin compatibility across the S12DB sub-family lets OEMs reuse PCB layout across vehicle variants with different option content.
Recomendado
HVAC Control Panel ECU
HVAC control panels in vehicles use the MC9S12DB128CFUE to drive stepper motors for blend doors, read cabin temperature sensors via the 10-bit ADC, and exchange blower-speed setpoints over CAN with the climate-control master. The PWM channels generate variable-frequency blower drive signals, and the 128KB Flash supports lookup-table-based temperature-curve interpolation. The QFP-80 industrial-temperature variant operates across -40C to +85C ambient cabin-roof conditions, and the integrated BDM allows assembly-line flash programming.
Recomendado
Instrument Cluster CAN Slave
As an instrument cluster CAN slave, the MC9S12DB128CFUE handles gauge drive signals, odometer storage in its 2KB EEPROM, and diagnostic message reception over the vehicle CAN backbone. The 16-bit CISC core provides efficient gauge-step interpolation in software, while the 8-channel PWM drives dimmable backlight LEDs and warning-indicator brightness. The 25MHz bus enables 50Hz gauge-update refresh without missing CAN message slots.
Recomendado
Industrial CAN-Node Distributed I/O
Outside automotive, the MC9S12DB128CFUE is widely deployed in industrial CANopen distributed I/O nodes where its 1Mbps CAN 2.0 capability, integrated SPI/IIC, and 8-channel 10-bit ADC provide a complete node controller in a single chip. Industrial cabinet temperature (-40C to +85C) is met by the industrial-grade variant. The 2KB EEPROM stores node-ID and CANopen PDO mapping without external non-volatile memory. Compared with newer ARM Cortex-M0 CAN nodes, the HCS12DB's mature firmware ecosystem and wide distributor stock make it preferred for retrofit industrial installations.
Recomendado
Sensor Interface and Bridge Module
The MC9S12DB128CFUE serves as a sensor interface and protocol-bridge module, aggregating analog sensors via the 10-bit ADC and forwarding formatted data over CAN or SCI to a host controller. Its IIC interface reads digital temperature/humidity sensors, while dual SCI channels support simultaneous GPS NMEA forwarding and Modbus RTU slave. The 8KB RAM buffers multi-sensor sample queues at bus-rate speeds, and the BDM allows in-field firmware patches via the single-wire debug port.
Recomendado
Lighting and LED Driver Controller
Automotive lighting modules - including tail-light assemblies, daytime running lights, and adaptive headlamp slave controllers - leverage the MC9S12DB128CFUE's 8 PWM channels to drive LED current controllers and MOSFET gates while communicating fault status over CAN. The 2KB EEPROM retains per-channel calibration data (LED forward-voltage compensation), and the integrated ADC monitors LED-string current for open/short detection. The 80-QFP package supports high-current PCB copper pours for ground-return paths.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MC9S12DB128CFUE — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MC9S12DB128BUE | MC9S12E128CFUE | MC9S12DG128CFUE | MC9S12C128CFUE | MC9S12GC128MFUE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 80-QFP (14x14) | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same |
| Core | HCS12 16-bit | HCS12 16-bit | HCS12 16-bit | HCS12 16-bit | HCS12 16-bit | HCS12 16-bit |
| Maximum Clock Frequency | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Flash Size | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| EEPROM | 2 KB | 2 KB | 2 KB | 1 KB | 1 KB | 2 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 4 KB | 8 KB |
| CAN Module | 1 x CAN 2.0 | 1 x CAN 2.0 | 1 x CAN 2.0 | 1 x CAN 2.0 | 1 x CAN 2.0 | 1 x CAN 2.0 |
| Family Focus | Body Control (DB) | Body Control (DB) | Motor Control (E) | Motor Control (DG) | Base (C) | General (GC) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +125C |
Diferenciadores clave
- Largest EEPROM in HCS12DB family (frente a MC9S12DG128CFUE)
- Body-network peripheral optimization (frente a MC9S12E128CFUE)
- Pin-compatible with broader HCS12 family (frente a MC9S12GC128MFUE)
Notas de diseño
The MC9S12DB128CFUE requires a stable 5V VDDX supply with bulk decoupling (10uF tantalum + 0.1uF ceramic per supply pin pair). The internal voltage regulator generates 2.5V VDD from VDDX; add a 4.7uF capacitor on each VDD pin. Estimated: total quiescent current at 25MHz is approximately 25-40mA across temperature. Ensure VDDX ramp-time is monotonic at startup to avoid the internal regulator entering an undefined state.
Layout the BKGD, RESET, and MODA/MODB pins with short traces and bypass caps within 5mm. Keep the analog VDDA/VSSA pair isolated from switching digital VDDX/VSSX pins with a ground moat or 0V split. ADC reference pins VRH and VRL require low-impedance 100nF + 10uF decoupling to reject digital switching noise. Estimated: place all decoupling caps on the same layer as the IC to minimize via inductance.
CAN bus signals (CAN_TX, CAN_RX) require a matched-impedance layout (typically 120 ohm differential) and external ESD protection. Keep CAN transceiver (TJA1050/MCP2551) within 20mm of the MCU CAN pins to minimize stub length. For BDM debugging, the BKGD pin is sensitive to noise; add 100kohm pullup and route away from PWM edges to avoid false debugger communication.
Do not leave the MODA/MODB pins floating at reset - they select the special vs normal operating mode. Tie MODA high and MODB low for normal single-chip mode. The BDM interface uses pin 23 (BKGD) which must not be driven by external logic during reset. Watchdog disable sequence during development requires writing 0x55 then 0xAA to the COPCTL register within the timeout window.
Información de cumplimiento
RoHS status not explicitly stated in verified web data; check NXP product declaration. AEC-Q100 not applicable for industrial-grade variant - choose 'V' suffix parts for AEC-Q100 automotive qualification. The original MC9S12DB128CFUE suffix 'C' denotes industrial temperature grade per NXP convention.