MC9S12DB128CFUE - HCS12 16-Bit 25MHz 128KB Flash MCU | NXP | 80-QFP
N.º da peça: MC9S12DB128CFUE ✗ Fim de vida| Qtd. | Preço unitário | 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 Visão geral
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 drop-in para MC9S12DB128CFUE — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MC9S12DB128CFUE (mesmo formato e footprint) — diferindo em Package, ADC, Core, Program Memory Size, Debug Interface.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MC9S12DB128BUE
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MC9S12E128CFUE
✅ Drop-In✓ Em estoque
$10.65 / unidade
Ver ficha técnica →MC9S12A128CFUE
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MC9S12DG128CFUE
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MC9S12C128CFUE
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MC9S12GC128MFUE
✅ Drop-In✓ Em estoque
$7.1 / unidade
Ver ficha técnica →MC9S12DB128CFUE Classificações máximas e características elétricas
| Core | HCS12 (16-bit CISC) |
| Processor Series | S12D / HCS12DB |
| Largura do barramento de dados | 16 bit |
| Frequência máxima de clock | 25 MHz |
| Program Memory Size | 128 KB (128K x 8) FLASH |
| RAM Size | 8 KB |
| EEPROM Size | 2 KB |
| Tensão de alimentação | 2.5 V / 5 V |
| Encapsulamento | 80-QFP (14x14 mm) |
| Tipo de montagem | Surface Mount |
| Terminal Form | Gull Wing |
| No. of Terminals | 80 |
| Temperatura de operação | -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) |
Configuração de pinos do MC9S12DB128CFUE
| Pino 1 | VRH — ADC analog reference high |
| Pino 2 | VRL — ADC analog reference low |
| Pino 3 | VDDA — Analog supply voltage |
| Pino 4 | VSSA — Analog ground |
| Pino 5 | PAD0/AN00 — Port AD bit 0 / ADC channel 0 |
| Pino 6 | PAD1/AN01 — Port AD bit 1 / ADC channel 1 |
| Pino 7 | PAD2/AN02 — Port AD bit 2 / ADC channel 2 |
| Pino 8 | PAD3/AN03 — Port AD bit 3 / ADC channel 3 |
| Pino 9 | PAD4/AN04 — Port AD bit 4 / ADC channel 4 |
| Pino 10 | PAD5/AN05 — Port AD bit 5 / ADC channel 5 |
| Pino 11 | PAD6/AN06 — Port AD bit 6 / ADC channel 6 |
| Pino 12 | PAD7/AN07 — Port AD bit 7 / ADC channel 7 |
| Pino 13 | PE0/XIRQ — Port E bit 0 / external interrupt request |
| Pino 14 | PE1/IRQ — Port E bit 1 / interrupt request |
| Pino 15 | PE2 — Port E bit 2 |
| Pino 16 | PE3 — Port E bit 3 |
| Pino 17 | PE4/ECLK — Port E bit 4 / E-clock output |
| Pino 18 | PE5/MODA — Port E bit 5 / mode select A |
| Pino 19 | PE6/MODB — Port E bit 6 / mode select B |
| Pino 20 | PE7/RESET — Port E bit 7 / RESET input |
| Pino 21 | VSSX1 — External ground 1 |
| Pino 22 | VDDX1 — External supply 1 (5V) |
| Pino 23 | BKGD — Background Debug Mode data |
| Pino 24 | PA0 — Port A bit 0 |
| Pino 25 | PA1 — Port A bit 1 |
| Pino 26 | PA2 — Port A bit 2 |
| Pino 27 | PA3 — Port A bit 3 |
| Pino 28 | PA4 — Port A bit 4 |
| Pino 29 | PA5 — Port A bit 5 |
| Pino 30 | PA6 — Port A bit 6 |
| Pino 31 | PA7 — Port A bit 7 |
| Pino 32 | VSSX2 — External ground 2 |
| Pino 33 | VDDX2 — External supply 2 (5V) |
| Pino 34 | PB0 — Port B bit 0 |
| Pino 35 | PB1 — Port B bit 1 |
| Pino 36 | PB2 — Port B bit 2 |
| Pino 37 | PB3 — Port B bit 3 |
| Pino 38 | PB4 — Port B bit 4 |
| Pino 39 | PB5 — Port B bit 5 |
| Pino 40 | PB6 — Port B bit 6 |
| Pino 41 | PB7 — Port B bit 7 |
| Pino 42 | PC0 — Port C bit 0 |
| Pino 43 | PC1 — Port C bit 1 |
| Pino 44 | PC2 — Port C bit 2 |
| Pino 45 | PC3 — Port C bit 3 |
| Pino 46 | PC4 — Port C bit 4 |
| Pino 47 | PC5 — Port C bit 5 |
| Pino 48 | PC6 — Port C bit 6 |
| Pino 49 | PC7 — Port C bit 7 |
| Pino 50 | VSSX3 — External ground 3 |
| Pino 51 | VDDX3 — External supply 3 (5V) |
| Pino 52 | PJ0/SDA — Port J bit 0 / IIC SDA |
| Pino 53 | PJ1/SCL — Port J bit 1 / IIC SCL |
| Pino 54 | PJ2 — Port J bit 2 |
| Pino 55 | PJ3 — Port J bit 3 |
| Pino 56 | PJ4 — Port J bit 4 |
| Pino 57 | PJ5 — Port J bit 5 |
| Pino 58 | PJ6 — Port J bit 6 |
| Pino 59 | PJ7 — Port J bit 7 |
| Pino 60 | PK0 — Port K bit 0 |
| Pino 61 | PK1 — Port K bit 1 |
| Pino 62 | PK2 — Port K bit 2 |
| Pino 63 | PK3 — Port K bit 3 |
| Pino 64 | PK4 — Port K bit 4 |
| Pino 65 | PK5 — Port K bit 5 |
| Pino 66 | PK6 — Port K bit 6 |
| Pino 67 | PK7 — Port K bit 7 |
| Pino 68 | PM0 — Port M bit 0 (memory expansion) |
| Pino 69 | PM1 — Port M bit 1 (memory expansion) |
| Pino 70 | CAN_TX — CAN transmit output |
| Pino 71 | CAN_RX — CAN receive input |
| Pino 72 | SCK0/PS0 — SPI0 clock / PWM channel 0 |
| Pino 73 | MOSI0/PS1 — SPI0 master-out / PWM channel 1 |
| Pino 74 | MISO0/PS2 — SPI0 master-in / PWM channel 2 |
| Pino 75 | SS0/PS3 — SPI0 slave-select / PWM channel 3 |
| Pino 76 | TXD0 — SCI0 transmit |
| Pino 77 | RXD0 — SCI0 receive |
| Pino 78 | TXD1 — SCI1 transmit |
| Pino 79 | RXD1 — SCI1 receive |
| Pino 80 | VSSR — Internal regulator ground |
Aplicações típicas
MC9S12DB128CFUE é adequado para 7 aplicaçãos: 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
Resumo dos produtos recomendados
Dados de referência de engenharia para MC9S12DB128CFUE — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- Largest EEPROM in HCS12DB family (vs MC9S12DG128CFUE)
- Body-network peripheral optimization (vs MC9S12E128CFUE)
- Pin-compatible with broader HCS12 family (vs MC9S12GC128MFUE)
Notas de projeto
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.
Informações de conformidade
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.