MC9S12DB128CPV - HCS12 16-Bit MCU 128KB Flash 112-LQFP | NXP
MPN: MC9S12DB128CPV ✗ Cuối đờiMC9S12DB128CPV Tóm tắt
What is a 16-bit automotive microcontroller? An MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and peripherals such as timers, ADCs, and communication controllers on a single die. Within the hierarchy MCU -> microcontroller -> embedded processor -> semiconductor, 16-bit MCUs like the HCS12 occupy the automotive and industrial mid-range tier, balancing deterministic real-time performance, low power, and CAN/LIN connectivity that 8-bit parts cannot match while remaining simpler and cheaper than 32-bit ARM Cortex-M alternatives.
Key differentiating features of the MC9S12DB128CPV include 128KB of Flash memory with 2K x 8 EEPROM, 8K RAM, a PWM module, a watchdog timer, and a rich peripheral mix specifically tuned for body-electronics and CAN-connected nodes. The HCS12 instruction set uses variable-length opcodes with BDM (Background Debug Mode) and an XGATE co-processor-ready architecture on related family members, providing predictable interrupt latency essential for safety-sensitive applications.
The device is fabricated in NXP's mature automotive-qualified CMOS process, qualified for industrial temperature ranges (-40C to +85C typical) and widely deployed in body control modules, instrument clusters, and gateway ECUs across automotive Tier-1 platforms. It remains a long-lived member of NXP's HCS12 portfolio.
Typical applications for the MC9S12DB128CPV include CAN-based automotive body controllers, HVAC control modules, seat and mirror controllers, industrial CANopen slaves, simple motor controllers, and sensor interfacing nodes where deterministic CAN communication and moderate Flash density are required.
Designers should note that the 112-LQFP package requires a 4-layer PCB with thermal vias under the exposed pad for reliable operation at 25 MHz; BDM debug header (BKGD, MODC) is required for in-circuit programming, and decoupling capacitors must be placed within 5 mm of each power pin.
This page synthesizes distributor pricing across 21 channels, drop-in 112-LQFP alternatives, and practical layout/Bring-Up design notes not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho MC9S12DB128CPV — 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 MC9S12DB128CPV (cùng hình factor và footprint) — khác nhau ở Core Processor, EEPROM Size, Operating Temperature, Package, Peripherals.
MC9S12DT256CPV
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12DB128CPVE
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12DB128CPVER
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12DT128CPV
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MC9S12A256CPV
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12DB128CPV Tỷ lệ tối đa & tính chất điện
| Core Processor | HCS12 |
| Core Size | 16-Bit |
| Core Speed | 25 MHz |
| Program Memory Size | 128 KB (128K x 8) Flash |
| Program Memory Type | FLASH |
| EEPROM Size | 2K x 8 |
| RAM Size | 8 KB |
| Number of I/O | 91 |
| Hộp | 112-LQFP (20x20 mm) |
| Package Type Code | LQFP |
| Terminal Form | GULL WING |
| Kiểu lắp đặt | Surface Mount |
| Connectivity | CANbus, I2C, SCI, SPI |
| Peripherals | PWM, WDT (Watchdog Timer) |
| Operating Temperature Grade | INDUSTRIAL |
| Part Status | Obsolete / NRND |
| Series | HCS12DB |
Cấu hình chân MC9S12DB128CPV
| Chân 1 | PA0 — Port A bit 0 (GPIO / IRQ) |
| Chân 2 | PA1 — Port A bit 1 (GPIO / IRQ) |
| Chân 3 | PA2 — Port A bit 2 (GPIO) |
| Chân 4 | PA3 — Port A bit 3 (GPIO) |
| Chân 5 | PA4 — Port A bit 4 (GPIO) |
| Chân 6 | PA5 — Port A bit 5 (GPIO) |
| Chân 7 | PA6 — Port A bit 6 (GPIO) |
| Chân 8 | PA7 — Port A bit 7 (GPIO) |
| Chân 9 | PB0 — Port B bit 0 (GPIO / SPI) |
| Chân 10 | PB1 — Port B bit 1 (GPIO / SPI) |
| Chân 11 | PB2 — Port B bit 2 (GPIO / SPI) |
| Chân 12 | PB3 — Port B bit 3 (GPIO / SPI) |
| Chân 13 | PB4 — Port B bit 4 (GPIO / SPI) |
| Chân 14 | PB5 — Port B bit 5 (GPIO / SPI) |
| Chân 15 | PB6 — Port B bit 6 (GPIO / SPI) |
| Chân 16 | PB7 — Port B bit 7 (GPIO / SPI) |
| Chân 17 | PC0 — Port C bit 0 (GPIO / CAN) |
| Chân 18 | PC1 — Port C bit 1 (GPIO / CAN) |
| Chân 19 | PC2 — Port C bit 2 (GPIO) |
| Chân 20 | PC3 — Port C bit 3 (GPIO) |
| Chân 21 | PC4 — Port C bit 4 (GPIO) |
| Chân 22 | PC5 — Port C bit 5 (GPIO) |
| Chân 23 | PC6 — Port C bit 6 (GPIO) |
| Chân 24 | PC7 — Port C bit 7 (GPIO) |
| Chân 25 | PD0 — Port D bit 0 (GPIO / SCI) |
| Chân 26 | PD1 — Port D bit 1 (GPIO / SCI) |
| Chân 27 | PD2 — Port D bit 2 (GPIO / SCI) |
| Chân 28 | PD3 — Port D bit 3 (GPIO / SCI) |
| Chân 29 | PD4 — Port D bit 4 (GPIO / SCI) |
| Chân 30 | PD5 — Port D bit 5 (GPIO / SCI) |
| Chân 31 | PD6 — Port D bit 6 (GPIO / SCI) |
| Chân 32 | PD7 — Port D bit 7 (GPIO / SCI) |
| Chân 33 | PE0 — Port E bit 0 (GPIO / PWM) |
| Chân 34 | PE1 — Port E bit 1 (GPIO / PWM) |
| Chân 35 | PE2 — Port E bit 2 (GPIO / PWM) |
| Chân 36 | PE3 — Port E bit 3 (GPIO / PWM) |
| Chân 37 | PE4 — Port E bit 4 (GPIO / PWM) |
| Chân 38 | PE5 — Port E bit 5 (GPIO / PWM) |
| Chân 39 | PE6 — Port E bit 6 (GPIO / PWM) |
| Chân 40 | PE7 — Port E bit 7 (GPIO / PWM) |
| Chân 41 | PF0 — Port F bit 0 (GPIO / ADC) |
| Chân 42 | PF1 — Port F bit 1 (GPIO / ADC) |
| Chân 43 | PF2 — Port F bit 2 (GPIO / ADC) |
| Chân 44 | PF3 — Port F bit 3 (GPIO / ADC) |
| Chân 45 | PF4 — Port F bit 4 (GPIO / ADC) |
| Chân 46 | PF5 — Port F bit 5 (GPIO / ADC) |
| Chân 47 | PF6 — Port F bit 6 (GPIO / ADC) |
| Chân 48 | PF7 — Port F bit 7 (GPIO / ADC) |
| Chân 49 | PG0 — Port G bit 0 (GPIO) |
| Chân 50 | PG1 — Port G bit 1 (GPIO) |
| Chân 51 | PG2 — Port G bit 2 (GPIO) |
| Chân 52 | PG3 — Port G bit 3 (GPIO) |
| Chân 53 | PG4 — Port G bit 4 (GPIO) |
| Chân 54 | PG5 — Port G bit 5 (GPIO) |
| Chân 55 | PG6 — Port G bit 6 (GPIO) |
| Chân 56 | PG7 — Port G bit 7 (GPIO) |
| Chân 57 | PH0 — Port H bit 0 (GPIO / I2C) |
| Chân 58 | PH1 — Port H bit 1 (GPIO / I2C) |
| Chân 59 | PH2 — Port H bit 2 (GPIO / I2C) |
| Chân 60 | PH3 — Port H bit 3 (GPIO / I2C) |
| Chân 61 | PH4 — Port H bit 4 (GPIO / I2C) |
| Chân 62 | PH5 — Port H bit 5 (GPIO / I2C) |
| Chân 63 | PH6 — Port H bit 6 (GPIO / I2C) |
| Chân 64 | PH7 — Port H bit 7 (GPIO / I2C) |
| Chân 65 | PJ0 — Port J bit 0 (GPIO / CAN) |
| Chân 66 | PJ1 — Port J bit 1 (GPIO / CAN) |
| Chân 67 | PJ2 — Port J bit 2 (GPIO) |
| Chân 68 | PJ3 — Port J bit 3 (GPIO) |
| Chân 69 | PJ4 — Port J bit 4 (GPIO) |
| Chân 70 | PJ5 — Port J bit 5 (GPIO) |
| Chân 71 | PJ6 — Port J bit 6 (GPIO) |
| Chân 72 | PJ7 — Port J bit 7 (GPIO) |
| Chân 73 | PK0 — Port K bit 0 (GPIO) |
| Chân 74 | PK1 — Port K bit 1 (GPIO) |
| Chân 75 | PK2 — Port K bit 2 (GPIO) |
| Chân 76 | PK3 — Port K bit 3 (GPIO) |
| Chân 77 | PK4 — Port K bit 4 (GPIO) |
| Chân 78 | PK5 — Port K bit 5 (GPIO) |
| Chân 79 | PK6 — Port K bit 6 (GPIO) |
| Chân 80 | PK7 — Port K bit 7 (GPIO) |
| Chân 81 | PM0 — Port M bit 0 (GPIO) |
| Chân 82 | PM1 — Port M bit 1 (GPIO) |
| Chân 83 | PM2 — Port M bit 2 (GPIO) |
| Chân 84 | PM3 — Port M bit 3 (GPIO) |
| Chân 85 | PM4 — Port M bit 4 (GPIO) |
| Chân 86 | PM5 — Port M bit 5 (GPIO) |
| Chân 87 | PM6 — Port M bit 6 (GPIO) |
| Chân 88 | PM7 — Port M bit 7 (GPIO) |
| Chân 89 | PP0 — Port P bit 0 (GPIO / PWM) |
| Chân 90 | PP1 — Port P bit 1 (GPIO / PWM) |
| Chân 91 | PP2 — Port P bit 2 (GPIO / PWM) |
| Chân 92 | PP3 — Port P bit 3 (GPIO / PWM) |
| Chân 93 | PP4 — Port P bit 4 (GPIO / PWM) |
| Chân 94 | PP5 — Port P bit 5 (GPIO / PWM) |
| Chân 95 | PP6 — Port P bit 6 (GPIO / PWM) |
| Chân 96 | PP7 — Port P bit 7 (GPIO / PWM) |
| Chân 97 | PS0 — Port S bit 0 (GPIO / SPI) |
| Chân 98 | PS1 — Port S bit 1 (GPIO / SPI) |
| Chân 99 | PS2 — Port S bit 2 (GPIO / SPI) |
| Chân 100 | PS3 — Port S bit 3 (GPIO / SPI) |
| Chân 101 | PS4 — Port S bit 4 (GPIO / SPI) |
| Chân 102 | PS5 — Port S bit 5 (GPIO / SPI) |
| Chân 103 | PS6 — Port S bit 6 (GPIO / SPI) |
| Chân 104 | PS7 — Port S bit 7 (GPIO / SPI) |
| Chân 105 | BKGD — Background Debug Mode pin (debug + programming) |
| Chân 106 | MODC — Mode Control pin (BDM mode select) |
| Chân 107 | RESET — Active-low reset input |
| Chân 108 | VDDR — Voltage supply - regulator |
| Chân 109 | VDD — Digital supply voltage (5V) |
| Chân 110 | VDDPLL — PLL supply voltage |
| Chân 111 | VSS — Ground |
| Chân 112 | VSSPLL — PLL ground |
Ứng dụng tiêu biểu
MC9S12DB128CPV phù hợp cho 6 Áp dụngs: Automotive Body Control Module (BCM), HVAC Control Module, Industrial CANopen Slave Node, Automotive Gateway ECU, Seat and Mirror Controller, Sensor Conditioning and Aggregation Node.
Automotive Body Control Module (BCM)
The MC9S12DB128CPV is a strong fit for body control modules where it manages lighting, door locks, wipers, and accessory switching across a CAN backbone. Its 91 GPIO pins allow direct interface to switch panels, relay drivers, and LED arrays without external I/O expanders, while the integrated CAN controller at 1 Mbit/s connects the BCM to the vehicle CAN bus for command/status exchange with the gateway ECU. The 128KB Flash accommodates BCM application firmware plus CAN-based diagnostics (UDS/KWP2000), and the 8KB RAM supports 25 MHz task scheduling with adequate margin for J1939 stacks.
Được đề xuất
HVAC Control Module
HVAC climate control modules use the MC9S12DB128CPV to read cabin temperature sensors, blend-air actuators, and blower-motor PWM outputs. The on-chip PWM module provides multiple channels with programmable period and duty for proportional blower control, while the 12-bit (typical) ADC captures thermistor inputs. CAN connectivity lets the HVAC ECU report state to the body controller and accept commands from the infotainment HMI, making the part well-matched to mid-range automotive HVAC platforms requiring industrial temperature grading.
Được đề xuất
Industrial CANopen Slave Node
For industrial CANopen slave controllers, the MC9S12DB128CPV delivers deterministic 16-bit performance with an integrated CAN 2.0B controller, enabling 1 Mbit/s CANopen DS301 communication. Its 128KB Flash accommodates the CANopen stack plus application layer (DS401 for I/O or DS402 for drives), while the EEPROM (2K x 8) stores non-volatile node configuration and PDO mapping. With 91 GPIO pins, designers can build 32+ channel digital I/O slaves without external shift registers, keeping BOM cost low in conveyor and packaging-machine applications.
Được đề xuất
Automotive Gateway ECU
Body-to-chassis gateway modules use the MC9S12DB128CPV to bridge CAN segments, translate message IDs between sub-networks, and aggregate sensor data. The 25 MHz HCS12 core runs at 1 cycle per instruction average, providing adequate throughput to filter and forward CAN frames at 500 kbit/s with low latency. Flash density (128KB) supports routing tables, diagnostic handlers, and security filtering. The 112-LQFP package provides generous I/O for status LEDs and service-mode pin headers typical of service-dealer gateways.
Được đề xuất
Seat and Mirror Controller
Driver-seat memory and power-mirror controllers use the MC9S12DB128CPV to coordinate motor drivers, position feedback (potentiometers or Hall sensors), and CAN/LIN messaging to the body controller. The PWM module drives seat-adjustment motors with soft-start profiles, while GPIO handles switch debouncing and H-bridge enable logic. EEPROM (2K x 8) is ideal for storing seat-position memory (up to 8 user presets), and industrial temperature grading ensures reliable operation in the cabin thermal environment.
Được đề xuất
Sensor Conditioning and Aggregation Node
Distributed sensor aggregation nodes (in industrial or chassis domains) use the MC9S12DB128CPV to digitize analog signals, perform local filtering, and publish CAN frames. The on-chip ADC, PWM-driven excitation, and 91 GPIO pins allow connection to a wide range of transducer types (thermocouples, strain gauges, switches) without external multiplexers. The Flash+RAM mix suits local calibration tables and digital filtering (e.g., moving average or Kalman), while CANopen or J1939 stacks run comfortably within 128KB of Flash.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S12DB128CPV — 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 | MC9S12DT256CPV | MC9S12DB128CPVE | MC9S12DB128CPVER | MC9S12DT128CPV | MC9S12A256CPV |
|---|---|---|---|---|---|---|
| Package | 112-LQFP (20x20 mm) | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same |
| Core | HCS12 16-bit | HCS12 16-bit - same | HCS12 16-bit - same | HCS12 16-bit - same | HCS12 16-bit - same | HCS12 16-bit - same |
| Core Speed | 25 MHz | 25 MHz - same | 25 MHz - same | 25 MHz - same | 25 MHz - same | 25 MHz - same |
| Flash Memory | 128 KB | 256 KB (+100%) | 128 KB (same) | 128 KB (same) | 128 KB (same) | 256 KB (+100%) |
| RAM Size | 8 KB | 12 KB (+50%) | 8 KB (same) | 8 KB (same) | 8 KB (same) | 12 KB (+50%) |
| EEPROM Size | 2K x 8 | 4K x 8 (+100%) | 2K x 8 (same) | 2K x 8 (same) | 2K x 8 (same) | 4K x 8 (+100%) |
| GPIO Count | 91 | 91 (same) | 91 (same) | 91 (same) | 91 (same) | 91 (same) |
| Connectivity | CANbus, I2C, SCI, SPI | CANbus, I2C, SCI, SPI - same | CANbus, I2C, SCI, SPI - same | CANbus, I2C, SCI, SPI - same | CANbus, I2C, SCI, SPI - same | CANbus, I2C, SCI, SPI - same |
| Lifecycle Status | Obsolete / NRND | Obsolete / NRND | Obsolete / NRND | Obsolete / NRND | Obsolete / NRND | Obsolete / NRND |
Bảo phân biệt quan trọng
- Higher memory density in same 112-LQFP footprint (vsMC9S12DT128CPV)
- Drop-in memory upgrade path available (vsMC9S12DT256CPV)
- HCS12 16-bit core mature tooling (vsNXP S12Z family (e.g., S12ZVLA32))
Ghi chú thiết kế
The MC9S12DB128CPV requires three supplies: VDD (5V digital), VDDR (regulator input), and VDDPLL (PLL supply). Decoupling: place 100 nF ceramic + 4.7 uF bulk within 5 mm of each VDD/VSS pair, with a ferrite bead or small L-C pi-filter on VDDPLL to keep PLL jitter below 1%. Maintain VDD slew rate >= 1 V/ms to avoid POR issues per HCS12 reference manual section on power-on sequence.
The 112-LQFP package has 0.65 mm pitch. Use 4-layer PCB with continuous ground plane directly under the device and a 20x20 mm copper pour stitched with 0.3 mm thermal vias (1.5 mm pitch) for thermal management. Keep BDM header (BKGD/MODC/GND/VDD) within 50 mm of the IC; long BDM traces couple noise and degrade debug reliability in production testers.
Do not leave MODC floating. The MODC pin selects between single-chip and expanded modes at reset; it must be pulled high (logic 1) via a 4.7 kohm resistor for normal single-chip mode, otherwise the device wakes in expanded or special test mode and the firmware fails to execute. BKGD pin requires a 10 kohm pull-up to VDD for reliable BDM detection by the host debugger.
Estimated: at VDD=5V, core=25MHz, peripheral set drawing ~80 mA typical, power dissipation is ~400 mW. The 112-LQFP theta_JA is approximately 35 C/W on a 4-layer JEDEC board, yielding a ~14 C rise above ambient. This is comfortable inside an industrial temperature envelope (up to +85 C) but automotive under-hood applications (up to +125 C) may require additional copper pours or heatsinking.
CAN bus signals (CANH/CANL) on the MC9S12DB128CPV must be routed to an external TJA1050/TJA1041 transceiver within 50 mm trace length. Avoid 90-degree bends; use 45-degree or curved routing. Place a 120 ohm split-termination network (two 60 ohm resistors + 4.7 nF cap) at each end of the CAN bus to suppress reflections in 1 Mbit/s Class C networks per ISO 11898-2.
Thông tin tuân thủ
AEC-Q100 qualification inferred from automotive HCS12DB family pedigree per NXP product page; specific AEC-Q100 certificate document number not provided in distributor data. RoHS compliance not formally confirmed in source data - request CoC from NXP for production orders. Lead-free packaging confirmed via LQFP finish.
