MC9S12DB128CFUE - HCS12 16-Bit 25MHz 128KB Flash MCU | NXP | 80-QFP
Référence : MC9S12DB128CFUE ✗ Fin de vie| Qté | Prix unitaire | 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 Présentation
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.
Alternatives de remplacement direct pour MC9S12DB128CFUE — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MC9S12DB128CFUE (même facteur de forme et même empreinte) — différant par Package, ADC, Core, Program Memory Size, Debug Interface.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC9S12DB128BUE
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S12E128CFUE
✅ Remplacement direct✓ En stock
$10.65 / unité
Voir la fiche technique →MC9S12A128CFUE
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MC9S12DG128CFUE
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S12C128CFUE
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S12GC128MFUE
✅ Remplacement direct✓ En stock
$7.1 / unité
Voir la fiche technique →MC9S12DB128CFUE Valeurs maximales et caractéristiques électriques
| Core | HCS12 (16-bit CISC) |
| Processor Series | S12D / HCS12DB |
| Largeur du bus de données | 16 bit |
| Fréquence d'horloge maximale | 25 MHz |
| Program Memory Size | 128 KB (128K x 8) FLASH |
| RAM Size | 8 KB |
| EEPROM Size | 2 KB |
| Tension d'alimentation | 2.5 V / 5 V |
| Boîtier | 80-QFP (14x14 mm) |
| Type de montage | Surface Mount |
| Terminal Form | Gull Wing |
| No. of Terminals | 80 |
| Température de fonctionnement | -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) |
Configuration des broches de MC9S12DB128CFUE
| Broche 1 | VRH — ADC analog reference high |
| Broche 2 | VRL — ADC analog reference low |
| Broche 3 | VDDA — Analog supply voltage |
| Broche 4 | VSSA — Analog ground |
| Broche 5 | PAD0/AN00 — Port AD bit 0 / ADC channel 0 |
| Broche 6 | PAD1/AN01 — Port AD bit 1 / ADC channel 1 |
| Broche 7 | PAD2/AN02 — Port AD bit 2 / ADC channel 2 |
| Broche 8 | PAD3/AN03 — Port AD bit 3 / ADC channel 3 |
| Broche 9 | PAD4/AN04 — Port AD bit 4 / ADC channel 4 |
| Broche 10 | PAD5/AN05 — Port AD bit 5 / ADC channel 5 |
| Broche 11 | PAD6/AN06 — Port AD bit 6 / ADC channel 6 |
| Broche 12 | PAD7/AN07 — Port AD bit 7 / ADC channel 7 |
| Broche 13 | PE0/XIRQ — Port E bit 0 / external interrupt request |
| Broche 14 | PE1/IRQ — Port E bit 1 / interrupt request |
| Broche 15 | PE2 — Port E bit 2 |
| Broche 16 | PE3 — Port E bit 3 |
| Broche 17 | PE4/ECLK — Port E bit 4 / E-clock output |
| Broche 18 | PE5/MODA — Port E bit 5 / mode select A |
| Broche 19 | PE6/MODB — Port E bit 6 / mode select B |
| Broche 20 | PE7/RESET — Port E bit 7 / RESET input |
| Broche 21 | VSSX1 — External ground 1 |
| Broche 22 | VDDX1 — External supply 1 (5V) |
| Broche 23 | BKGD — Background Debug Mode data |
| Broche 24 | PA0 — Port A bit 0 |
| Broche 25 | PA1 — Port A bit 1 |
| Broche 26 | PA2 — Port A bit 2 |
| Broche 27 | PA3 — Port A bit 3 |
| Broche 28 | PA4 — Port A bit 4 |
| Broche 29 | PA5 — Port A bit 5 |
| Broche 30 | PA6 — Port A bit 6 |
| Broche 31 | PA7 — Port A bit 7 |
| Broche 32 | VSSX2 — External ground 2 |
| Broche 33 | VDDX2 — External supply 2 (5V) |
| Broche 34 | PB0 — Port B bit 0 |
| Broche 35 | PB1 — Port B bit 1 |
| Broche 36 | PB2 — Port B bit 2 |
| Broche 37 | PB3 — Port B bit 3 |
| Broche 38 | PB4 — Port B bit 4 |
| Broche 39 | PB5 — Port B bit 5 |
| Broche 40 | PB6 — Port B bit 6 |
| Broche 41 | PB7 — Port B bit 7 |
| Broche 42 | PC0 — Port C bit 0 |
| Broche 43 | PC1 — Port C bit 1 |
| Broche 44 | PC2 — Port C bit 2 |
| Broche 45 | PC3 — Port C bit 3 |
| Broche 46 | PC4 — Port C bit 4 |
| Broche 47 | PC5 — Port C bit 5 |
| Broche 48 | PC6 — Port C bit 6 |
| Broche 49 | PC7 — Port C bit 7 |
| Broche 50 | VSSX3 — External ground 3 |
| Broche 51 | VDDX3 — External supply 3 (5V) |
| Broche 52 | PJ0/SDA — Port J bit 0 / IIC SDA |
| Broche 53 | PJ1/SCL — Port J bit 1 / IIC SCL |
| Broche 54 | PJ2 — Port J bit 2 |
| Broche 55 | PJ3 — Port J bit 3 |
| Broche 56 | PJ4 — Port J bit 4 |
| Broche 57 | PJ5 — Port J bit 5 |
| Broche 58 | PJ6 — Port J bit 6 |
| Broche 59 | PJ7 — Port J bit 7 |
| Broche 60 | PK0 — Port K bit 0 |
| Broche 61 | PK1 — Port K bit 1 |
| Broche 62 | PK2 — Port K bit 2 |
| Broche 63 | PK3 — Port K bit 3 |
| Broche 64 | PK4 — Port K bit 4 |
| Broche 65 | PK5 — Port K bit 5 |
| Broche 66 | PK6 — Port K bit 6 |
| Broche 67 | PK7 — Port K bit 7 |
| Broche 68 | PM0 — Port M bit 0 (memory expansion) |
| Broche 69 | PM1 — Port M bit 1 (memory expansion) |
| Broche 70 | CAN_TX — CAN transmit output |
| Broche 71 | CAN_RX — CAN receive input |
| Broche 72 | SCK0/PS0 — SPI0 clock / PWM channel 0 |
| Broche 73 | MOSI0/PS1 — SPI0 master-out / PWM channel 1 |
| Broche 74 | MISO0/PS2 — SPI0 master-in / PWM channel 2 |
| Broche 75 | SS0/PS3 — SPI0 slave-select / PWM channel 3 |
| Broche 76 | TXD0 — SCI0 transmit |
| Broche 77 | RXD0 — SCI0 receive |
| Broche 78 | TXD1 — SCI1 transmit |
| Broche 79 | RXD1 — SCI1 receive |
| Broche 80 | VSSR — Internal regulator ground |
Applications typiques
MC9S12DB128CFUE convient pour 7 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC9S12DB128CFUE — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Largest EEPROM in HCS12DB family (vs MC9S12DG128CFUE)
- Body-network peripheral optimization (vs MC9S12E128CFUE)
- Pin-compatible with broader HCS12 family (vs MC9S12GC128MFUE)
Notes de conception
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.
Informations de conformité
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.