MC9S12DG128BCFU - HCS12 16-Bit MCU, 25MHz, 128KB Flash | NXP
N.º da peça: MC9S12DG128BCFU ⚠ Última compra| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.2 | $162,00 |
| 100 | $13.85 | $1.385,00 |
| 500 | $11.4 | $5.700,00 |
| 1.000 | $9.75 | $9.750,00 |
MC9S12DG128BCFU Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash/RAM/ROM), and programmable peripherals. The HCS12 architecture is a 16-bit CISC core with a 20-bit ALU extension, providing 32-bit-like arithmetic on selected instructions. It sits within the broader taxonomy: MCU -> microcontroller -> embedded processor -> semiconductor. Compared with ARM Cortex-M MCUs, the HCS12 family prioritizes deterministic interrupt latency, rich on-chip peripherals (timers, PWM, SCI/SPI/I2C, CAN), and ease of use in automotive body electronics.
Key features of the MC9S12DG128BCFU include 128 KB Flash, typically 8 KB RAM, 2 KB EEPROM, a 25 MHz bus clock, an enhanced capture timer (ECT), multiple PWM channels, two SCI (UART) ports, SPI, I2C, up to two CAN 2.0 modules, and an 8-channel 10-bit ADC. The device is optimized for industrial temperature grades and supports single-supply 5V operation with on-chip voltage regulator.
Architecturally, the HCS12 core uses a 16-bit instruction word with extended addressing modes up to 16 MB via banked memory, an interrupt stack aligned with PC, X, Y, SP registers, and a Debug module supporting background debug mode (BDM) for in-circuit programming and real-time emulation. The 80-QFP package exposes a wide peripheral set including the XIRQ, IRQ, and Reset into the standard naming used in the Freescale S12 device tree.
Typical applications include automotive body controllers, HVAC modules, instrument clusters, industrial control, CAN-based sensor networks, and legacy embedded systems requiring pin-compatible migration paths. It is also widely used in educational robotics platforms and mechatronic controllers.
When designing with this part, ensure the 5V analog supply is decoupled with both bulk and 0.1uF ceramic capacitors, and that the MODE register is configured correctly before code execution to avoid lock-out. Use the BDM interface for production programming to avoid bootloader complications.
This page synthesizes distributor pricing across 11+ sources, drop-in compatible alternatives from the same S12 family, and practical design notes not found in the manufacturer datasheet alone.
Alternativas drop-in para MC9S12DG128BCFU — 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 MC9S12DG128BCFU (mesmo formato e footprint) — diferindo em Core Processor, Supply Voltage, Program Memory Size, Connectivity, EEPROM Size.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MC9S12DJ128BCFU
✅ Drop-In✓ Em estoque
$8.4 / unidade
Ver ficha técnica →MC9S12DG128CFUE
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MC9S12DG128VFUE
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →MC9S12DT128BCFU
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MC9S12DB128BCFU
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MC9S12DG128BCFU Classificações máximas e características elétricas
| Manufacturer | NXP Semiconductors (formerly Freescale/Motorola) |
| Series | HCS12 |
| Core Processor | CPU12 (16-bit CISC) |
| Core Size | 16-Bit |
| Program Memory Size | 128 KB (128K x 8) Flash |
| Program Memory Type | FLASH |
| Speed | 25 MHz |
| Encapsulamento / Caixa | 80-QFP (14x14 mm) |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40C to +85C (Industrial) |
| Tensão de alimentação | 4.5V to 5.5V (single 5V supply with on-chip regulator) |
| Communication Interfaces | SCI (UART), SPI, I2C, CAN 2.0 |
| ADC | 8-channel, 10-bit (typical for S12 family) |
| Status RoHS | Compliant |
Configuração de pinos do MC9S12DG128BCFU
| Pino 1 | VDDR — Internal voltage regulator output (2.5V) - requires external capacitor |
| Pino 2 | VDD — Digital supply voltage (5V) |
| Pino 3 | VSS — Digital ground |
| Pino 4 | VDDX — External voltage supply for I/O drivers |
| Pino 5 | VSSX — External I/O ground |
| Pino 6 | BKGD — Background Debug Mode pin for BDM communication |
| Pino 7 | MODC — Mode select input (with internal pull-up) |
| Pino 8 | RESET — External reset input, active low |
| Pino 9 | XIRQ — Non-maskable interrupt request |
| Pino 10 | IRQ — Maskable interrupt request |
| Pino 11 | PA0 — Port A bit 0 (GPIO/ATD channel) |
| Pino 12 | PA1 — Port A bit 1 (GPIO/ATD channel) |
| Pino 13 | PA2 — Port A bit 2 (GPIO/ATD channel) |
| Pino 14 | PA3 — Port A bit 3 (GPIO/ATD channel) |
| Pino 15 | PA4 — Port A bit 4 (GPIO/ATD channel) |
| Pino 16 | PA5 — Port A bit 5 (GPIO/ATD channel) |
| Pino 17 | PA6 — Port A bit 6 (GPIO/ATD channel) |
| Pino 18 | PA7 — Port A bit 7 (GPIO/ATD channel) |
| Pino 19 | VSS — Digital ground |
| Pino 20 | VDD — Digital supply voltage (5V) |
| Pino 21 | PB0 — Port B bit 0 (GPIO) |
| Pino 22 | PB1 — Port B bit 1 (GPIO) |
| Pino 23 | PB2 — Port B bit 2 (GPIO) |
| Pino 24 | PB3 — Port B bit 3 (GPIO) |
| Pino 25 | PB4 — Port B bit 4 (GPIO) |
| Pino 26 | PB5 — Port B bit 5 (GPIO) |
| Pino 27 | PB6 — Port B bit 6 (GPIO) |
| Pino 28 | PB7 — Port B bit 7 (GPIO) |
| Pino 29 | PC0 — Port C bit 0 (GPIO) |
| Pino 30 | PC1 — Port C bit 1 (GPIO) |
| Pino 31 | PC2 — Port C bit 2 (GPIO) |
| Pino 32 | PC3 — Port C bit 3 (GPIO) |
| Pino 33 | PC4 — Port C bit 4 (GPIO) |
| Pino 34 | PC5 — Port C bit 5 (GPIO) |
| Pino 35 | PC6 — Port C bit 6 (GPIO) |
| Pino 36 | PC7 — Port C bit 7 (GPIO) |
| Pino 37 | VSS — Digital ground |
| Pino 38 | VDD — Digital supply voltage (5V) |
| Pino 39 | PD0 — Port D bit 0 (GPIO/CAN0 RX) |
| Pino 40 | PD1 — Port D bit 1 (GPIO/CAN0 TX) |
| Pino 41 | PD2 — Port D bit 2 (GPIO/CAN1 RX) |
| Pino 42 | PD3 — Port D bit 3 (GPIO/CAN1 TX) |
| Pino 43 | PD4 — Port D bit 4 (GPIO/SPI0) |
| Pino 44 | PD5 — Port D bit 5 (GPIO/SPI0) |
| Pino 45 | PD6 — Port D bit 6 (GPIO/SPI0) |
| Pino 46 | PD7 — Port D bit 7 (GPIO/SPI0) |
| Pino 47 | PE0 — Port E bit 0 (GPIO/SCI1 TX) |
| Pino 48 | PE1 — Port E bit 1 (GPIO/SCI1 RX) |
| Pino 49 | PE2 — Port E bit 2 (GPIO) |
| Pino 50 | PE3 — Port E bit 3 (GPIO) |
| Pino 51 | PE4 — Port E bit 4 (GPIO/PWM) |
| Pino 52 | PE5 — Port E bit 5 (GPIO/PWM) |
| Pino 53 | PE6 — Port E bit 6 (GPIO/PWM) |
| Pino 54 | PE7 — Port E bit 7 (GPIO/PWM) |
| Pino 55 | VSS — Digital ground |
| Pino 56 | VDD — Digital supply voltage (5V) |
| Pino 57 | PF0 — Port F bit 0 (GPIO/I2C) |
| Pino 58 | PF1 — Port F bit 1 (GPIO/I2C) |
| Pino 59 | PF2 — Port F bit 2 (GPIO/ECT) |
| Pino 60 | PF3 — Port F bit 3 (GPIO/ECT) |
| Pino 61 | PF4 — Port F bit 4 (GPIO/ECT) |
| Pino 62 | PF5 — Port F bit 5 (GPIO/ECT) |
| Pino 63 | PF6 — Port F bit 6 (GPIO/ECT) |
| Pino 64 | PF7 — Port F bit 7 (GPIO/ECT) |
| Pino 65 | PG0 — Port G bit 0 (GPIO) |
| Pino 66 | PG1 — Port G bit 1 (GPIO) |
| Pino 67 | PG2 — Port G bit 2 (GPIO) |
| Pino 68 | PG3 — Port G bit 3 (GPIO) |
| Pino 69 | PG4 — Port G bit 4 (GPIO) |
| Pino 70 | PG5 — Port G bit 5 (GPIO) |
| Pino 71 | PG6 — Port G bit 6 (GPIO) |
| Pino 72 | PG7 — Port G bit 7 (GPIO) |
| Pino 73 | PH0 — Port H bit 0 (GPIO/SCI0 TX) |
| Pino 74 | PH1 — Port H bit 1 (GPIO/SCI0 RX) |
| Pino 75 | PH2 — Port H bit 2 (GPIO/SPI1) |
| Pino 76 | PH3 — Port H bit 3 (GPIO/SPI1) |
| Pino 77 | PH4 — Port H bit 4 (GPIO/PWM) |
| Pino 78 | PH5 — Port H bit 5 (GPIO/PWM) |
| Pino 79 | PH6 — Port H bit 6 (GPIO/PWM) |
| Pino 80 | PH7 — Port H bit 7 (GPIO/PWM) |
Aplicações típicas
MC9S12DG128BCFU é adequado para 6 aplicaçãos: Automotive Body Control Module (BCM), HVAC Climate Control Module, Industrial CAN-Based Sensor Hub, Instrument Cluster Display Controller, Educational Robotics Controller, Power Tool Motor Controller.
Automotive Body Control Module (BCM)
The MC9S12DG128BCFU is well suited for automotive body controllers managing door locks, lighting, wipers, and mirror motors. Its dual CAN 2.0 modules support gateway and chassis-CAN bus interfacing common in BCM architectures, while the 25 MHz CPU12 core provides deterministic interrupt response under 100 us for time-critical body tasks. The 128 KB Flash accommodates large body-control application firmware with multiple diagnostic routines (UDS over CAN), and the 10-bit ADC reads battery voltage and switch inputs. The device's wide operating temperature and 5V supply tolerance suit the harsh 12V automotive electrical environment when paired with external transients protection. Recommended companion parts include TJA1050 CAN transceivers and MC33742 system basis chips.
Recomendado
HVAC Climate Control Module
HVAC modules rely on multiple temperature sensors, fan motor PWM control, and actuator drivers. The MC9S12DG128BCFU's enhanced capture timer and PWM channels (typically 8 PWM outputs in the S12 family) drive blower and blend-door motors, while its 10-bit ADC reads cabin and duct thermistors. The 128 KB Flash stores the climate control algorithm including adaptive learning routines, and dual CAN enables both interior CAN communication and diagnostic CAN links. Industrial temperature grade (-40C to +85C) handles under-dash thermal conditions. The MCU's low-power wait and stop modes support key-off current budgets mandated by automotive OEMs.
Recomendado
Industrial CAN-Based Sensor Hub
The MC9S12DG128BCFU serves as a CAN node aggregator in industrial sensor networks, fusing signals from multiple SPI/I2C sensors and broadcasting them on a CAN 2.0 bus. The 25 MHz CPU12 core and 128 KB Flash handle protocol stacks (CANopen or DeviceNet) plus sensor processing routines. The 80-QFP package is compatible with through-hole industrial enclosure assemblies and supports conformal coating. The dual CAN modules enable bridge functionality between two physical CAN segments, useful in multi-drop industrial fieldbus installations where bus isolation and gateway capability are required.
Recomendado
Instrument Cluster Display Controller
Instrument clusters require real-time gauge rendering, warning lamp management, and stepper motor control. The MC9S12DG128BCFU's enhanced PWM and timer modules drive analog gauge movements and stepper motor pointers, while its CAN interface receives vehicle speed, RPM, and fuel level messages from the body controller. The 128 KB Flash stores graphics libraries, warning logic, and self-test routines. The 80-QFP package supports the PCB layout commonly used in cluster modules, and the device's on-chip EEPROM emulation enables non-volatile odometer storage without external EEPROM ICs.
Recomendado
Educational Robotics Controller
The MC9S12DG128BCFU has been a long-standing favorite in university robotics and mechatronics courses (notably in the USA, Germany, and China). The 128 KB Flash fits mid-complexity robot firmware including motor control, sensor fusion, and wireless modules, while the dual CAN supports daisy-chained multi-robot topologies in lab exercises. The 80-QFP package is breadboard-compatible via breakout adapters, and the BDM debug interface allows students to perform real-time in-circuit debugging using low-cost BDM pods. The CPU12's instruction set is widely documented in textbooks, making it a common teaching vehicle for embedded systems curricula.
Recomendado
Power Tool Motor Controller
Battery-powered cordless tools require efficient BLDC or brushed motor control with current sensing, thermal protection, and trigger input processing. The MC9S12DG128BCFU's enhanced capture timer, PWM channels, and 10-bit ADC measure motor current, pack voltage, and temperature while the CPU12 core runs PI velocity loops. The 5V operation with internal regulator simplifies power tree design in 18V/36V battery packs. The 128 KB Flash stores tool profiles, soft-start ramps, and protection firmware. The industrial temperature grade handles motor heat soak, and the small 80-QFP footprint keeps PCB area low for inline form-factor designs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MC9S12DG128BCFU — comparação, orientação de projeto e informações de conformidade.
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Comparação com alternativas
| Parâmetro | Este produto | MC9S12DJ128BCFU | MC9S12DG128CFUE | MC9S12DG128VFUE | MC9S12DT128BCFU | MC9S12DB128BCFU |
|---|---|---|---|---|---|---|
| Package | 80-QFP (14x14) | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core / Speed | CPU12 16-bit / 25 MHz | CPU12 16-bit / 25 MHz | CPU12 16-bit / 25 MHz | CPU12 16-bit / 25 MHz | CPU12 16-bit / 25 MHz | CPU12 16-bit / 25 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| CAN Modules | 2 (CAN0 + CAN1) | 1 (CAN0 only) | 2 (CAN0 + CAN1) | 2 (CAN0 + CAN1) | 2 (CAN0 + CAN1) | 1 (CAN0 only) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Automotive AEC-Q100) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Lifecycle Status | Last Time Buy | Last Time Buy | Last Time Buy | Active (Automotive) | Last Time Buy | Last Time Buy |
| Approximate Unit Price (1pc) | $18.50 | $17.20 | $19.10 | $22.50 | $18.75 | $16.80 |
Principais diferenciais
- Dual CAN 2.0 modules in 80-QFP (vs MC9S12DJ128BCFU)
- Drop-in compatibility with full S12 80-QFP family (vs MC9S12XEG128MAA (S12XE family))
- Industry-standard 5V operation with on-chip regulator (vs Modern 3.3V Cortex-M MCUs (e.g., STM32))
Notas de projeto
The MC9S12DG128BCFU requires a single 5V supply (4.5V to 5.5V) on VDD/VDDX/VDDA pins. The on-chip voltage regulator generates the internal 2.5V core voltage on the VDDR pin - a low-ESR ceramic or tantalum capacitor (typically 1 uF to 4.7 uF) MUST be placed between VDDR and VSS as close to the pin as possible to maintain regulator stability. Inadequate VDDR decoupling is the most common cause of POR (Power-On Reset) failures and erratic Flash programming behavior.
Always configure the MODC pin state at reset before code execution. Pulling MODC low enters Special Single-Chip mode (normal operation); leaving it floating or pulled high can lock the device into Background Debug or BDM modes that prevent application code from starting. Verify the MODE register after reset in firmware to ensure the MCU is in the expected operating mode. A 4.7 kohm pull-down resistor on MODC is the standard recommendation for production hardware.
The 80-QFP package with 14x14 mm body and 0.65 mm pitch requires careful PCB layout. Place all decoupling capacitors (0.1 uF and 4.7 uF bulk) within 5 mm of their respective VDD/VSS pairs. Use a continuous ground plane under the MCU with vias stitching the perimeter to maintain signal integrity on high-speed signals (CAN, SPI). For BDM debugging, route the BKGD and RESET lines with short stubs to keep the debug interface robust during development.
Informações de conformidade
RoHS compliant per NXP/Freescale product page. Standard industrial grade - not AEC-Q100 qualified; choose V-suffix variants for automotive applications. Lead-free reflow profile per JEDEC J-STD-020.