MC9S12DG128BCFU - HCS12 16-Bit MCU, 25MHz, 128KB Flash | NXP
MPN: MC9S12DG128BCFU ⚠ Lần mua cuốiMC9S12DG128BCFU Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho MC9S12DG128BCFU — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MC9S12DG128BCFU (cùng hình factor và footprint) — khác nhau ở Core Processor, Supply Voltage, Program Memory Size, Connectivity, EEPROM Size.
MC9S12DJ128BCFU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12DG128CFUE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12DG128VFUE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12DT128BCFU
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12DB128BCFU
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12DG128BCFU Tỷ lệ tối đa & tính chất điện
| 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 |
| Hộp / Vỏ | 80-QFP (14x14 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Điện áp cung cấp | 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) |
| Trạng thái RoHS | Compliant |
Cấu hình chân MC9S12DG128BCFU
| Chân 1 | VDDR — Internal voltage regulator output (2.5V) - requires external capacitor |
| Chân 2 | VDD — Digital supply voltage (5V) |
| Chân 3 | VSS — Digital ground |
| Chân 4 | VDDX — External voltage supply for I/O drivers |
| Chân 5 | VSSX — External I/O ground |
| Chân 6 | BKGD — Background Debug Mode pin for BDM communication |
| Chân 7 | MODC — Mode select input (with internal pull-up) |
| Chân 8 | RESET — External reset input, active low |
| Chân 9 | XIRQ — Non-maskable interrupt request |
| Chân 10 | IRQ — Maskable interrupt request |
| Chân 11 | PA0 — Port A bit 0 (GPIO/ATD channel) |
| Chân 12 | PA1 — Port A bit 1 (GPIO/ATD channel) |
| Chân 13 | PA2 — Port A bit 2 (GPIO/ATD channel) |
| Chân 14 | PA3 — Port A bit 3 (GPIO/ATD channel) |
| Chân 15 | PA4 — Port A bit 4 (GPIO/ATD channel) |
| Chân 16 | PA5 — Port A bit 5 (GPIO/ATD channel) |
| Chân 17 | PA6 — Port A bit 6 (GPIO/ATD channel) |
| Chân 18 | PA7 — Port A bit 7 (GPIO/ATD channel) |
| Chân 19 | VSS — Digital ground |
| Chân 20 | VDD — Digital supply voltage (5V) |
| Chân 21 | PB0 — Port B bit 0 (GPIO) |
| Chân 22 | PB1 — Port B bit 1 (GPIO) |
| Chân 23 | PB2 — Port B bit 2 (GPIO) |
| Chân 24 | PB3 — Port B bit 3 (GPIO) |
| Chân 25 | PB4 — Port B bit 4 (GPIO) |
| Chân 26 | PB5 — Port B bit 5 (GPIO) |
| Chân 27 | PB6 — Port B bit 6 (GPIO) |
| Chân 28 | PB7 — Port B bit 7 (GPIO) |
| Chân 29 | PC0 — Port C bit 0 (GPIO) |
| Chân 30 | PC1 — Port C bit 1 (GPIO) |
| Chân 31 | PC2 — Port C bit 2 (GPIO) |
| Chân 32 | PC3 — Port C bit 3 (GPIO) |
| Chân 33 | PC4 — Port C bit 4 (GPIO) |
| Chân 34 | PC5 — Port C bit 5 (GPIO) |
| Chân 35 | PC6 — Port C bit 6 (GPIO) |
| Chân 36 | PC7 — Port C bit 7 (GPIO) |
| Chân 37 | VSS — Digital ground |
| Chân 38 | VDD — Digital supply voltage (5V) |
| Chân 39 | PD0 — Port D bit 0 (GPIO/CAN0 RX) |
| Chân 40 | PD1 — Port D bit 1 (GPIO/CAN0 TX) |
| Chân 41 | PD2 — Port D bit 2 (GPIO/CAN1 RX) |
| Chân 42 | PD3 — Port D bit 3 (GPIO/CAN1 TX) |
| Chân 43 | PD4 — Port D bit 4 (GPIO/SPI0) |
| Chân 44 | PD5 — Port D bit 5 (GPIO/SPI0) |
| Chân 45 | PD6 — Port D bit 6 (GPIO/SPI0) |
| Chân 46 | PD7 — Port D bit 7 (GPIO/SPI0) |
| Chân 47 | PE0 — Port E bit 0 (GPIO/SCI1 TX) |
| Chân 48 | PE1 — Port E bit 1 (GPIO/SCI1 RX) |
| Chân 49 | PE2 — Port E bit 2 (GPIO) |
| Chân 50 | PE3 — Port E bit 3 (GPIO) |
| Chân 51 | PE4 — Port E bit 4 (GPIO/PWM) |
| Chân 52 | PE5 — Port E bit 5 (GPIO/PWM) |
| Chân 53 | PE6 — Port E bit 6 (GPIO/PWM) |
| Chân 54 | PE7 — Port E bit 7 (GPIO/PWM) |
| Chân 55 | VSS — Digital ground |
| Chân 56 | VDD — Digital supply voltage (5V) |
| Chân 57 | PF0 — Port F bit 0 (GPIO/I2C) |
| Chân 58 | PF1 — Port F bit 1 (GPIO/I2C) |
| Chân 59 | PF2 — Port F bit 2 (GPIO/ECT) |
| Chân 60 | PF3 — Port F bit 3 (GPIO/ECT) |
| Chân 61 | PF4 — Port F bit 4 (GPIO/ECT) |
| Chân 62 | PF5 — Port F bit 5 (GPIO/ECT) |
| Chân 63 | PF6 — Port F bit 6 (GPIO/ECT) |
| Chân 64 | PF7 — Port F bit 7 (GPIO/ECT) |
| Chân 65 | PG0 — Port G bit 0 (GPIO) |
| Chân 66 | PG1 — Port G bit 1 (GPIO) |
| Chân 67 | PG2 — Port G bit 2 (GPIO) |
| Chân 68 | PG3 — Port G bit 3 (GPIO) |
| Chân 69 | PG4 — Port G bit 4 (GPIO) |
| Chân 70 | PG5 — Port G bit 5 (GPIO) |
| Chân 71 | PG6 — Port G bit 6 (GPIO) |
| Chân 72 | PG7 — Port G bit 7 (GPIO) |
| Chân 73 | PH0 — Port H bit 0 (GPIO/SCI0 TX) |
| Chân 74 | PH1 — Port H bit 1 (GPIO/SCI0 RX) |
| Chân 75 | PH2 — Port H bit 2 (GPIO/SPI1) |
| Chân 76 | PH3 — Port H bit 3 (GPIO/SPI1) |
| Chân 77 | PH4 — Port H bit 4 (GPIO/PWM) |
| Chân 78 | PH5 — Port H bit 5 (GPIO/PWM) |
| Chân 79 | PH6 — Port H bit 6 (GPIO/PWM) |
| Chân 80 | PH7 — Port H bit 7 (GPIO/PWM) |
Ứng dụng tiêu biểu
MC9S12DG128BCFU phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S12DG128BCFU — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Dual CAN 2.0 modules in 80-QFP (vsMC9S12DJ128BCFU)
- Drop-in compatibility with full S12 80-QFP family (vsMC9S12XEG128MAA (S12XE family))
- Industry-standard 5V operation with on-chip regulator (vsModern 3.3V Cortex-M MCUs (e.g., STM32))
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.