NXP Semiconductors

MC9S12DB128CPV - HCS12 16-Bit MCU 128KB Flash 112-LQFP | NXP

Артикул: MC9S12DB128CPV ✗ Снят с производства
В наличии Отправка в течение 1–3 рабочих дней
112-LQFP (20x20 mm) Package 25 MHz Speed 128 KB (128K x 8) Flash Memory
От $10.95 USD / шт.
MOQ: 1 |
Цена обновлена: 2026-10-17
Оптовые цены
Кол-во Цена за ед. Итого
1 $18.5 $18,50
10 $16.2 $162,00
100 $13.85 $1.385,00
500 $12.1 $6.050,00
1.000 $10.95 $10.950,00
ℹ️ Все цены указаны в USD

MC9S12DB128CPV Обзор

The NXP MC9S12DB128CPV is a 16-bit HCS12 microcontroller from the HCS12DB family featuring 128KB of on-chip Flash program memory and housed in a 112-pin LQFP package (20x20 mm). It operates at a core frequency of 25 MHz, integrates CANbus, I2C, SCI and SPI connectivity, and provides 91 general-purpose I/O lines for automotive and industrial embedded designs.

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.

Аналоги без доработки для MC9S12DB128CPV — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.

Варианты в этой серии

Модели той же серии, совместимые без доработки с MC9S12DB128CPV (тот же форм-фактор и посадочное место) — отличается по Core Processor, EEPROM Size, Operating Temperature, Package, Peripherals.

NXP Semiconductors
Operating Temperature: -40 C to +105 C (industrial)
Package: 112-LQFP (20 x 20 mm)
Сравнить с MC9S12DB128CPV →
NXP Semiconductors
Core Processor: HCS12 (CPU12)
EEPROM Size: 2 KB
Operating Temperature: -40C to +85C (industrial)
Сравнить с MC9S12DB128CPV →

Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:

MC9S12DT256CPV

✅ Прямая замена ⚠️ Характеристики не проверены
📦 112-LQFP (20x20 mm)
256KB Flash vs 128KB (+100%), same HCS12 core 25MHz, same 112-LQFP pinout, pin-to-pin compatible

📋 Справочный аналог (нет в каталоге)

MC9S12DB128CPVE

✅ Прямая замена ⚠️ Характеристики не проверены
📦 112-LQFP (20x20 mm)
identical die/package, factory-programmed variant, pin-to-pin compatible

📋 Справочный аналог (нет в каталоге)

MC9S12DB128CPVER

✅ Прямая замена ⚠️ Характеристики не проверены
📦 112-LQFP (20x20 mm)
identical die, tape-and-reel packaging code, pin-to-pin compatible

📋 Справочный аналог (нет в каталоге)

MC9S12DT128CPV

✅ Прямая замена ⚠️ Характеристики не проверены
NXP Semiconductors
📦 112-LQFP (20x20 mm)
NXP USA Inc. · HCS12 · HCS12 (CPU12) · 16-Bit · CISC · 25 MHz · 128 KB (128K x 8) · FLASH

✓ В наличии

$9.85 / шт.

Открыть даташит →

MC9S12A256CPV

✅ Прямая замена ⚠️ Характеристики не проверены
📦 112-LQFP (20x20 mm)
256KB Flash, A256 sub-family, same 112-LQFP package, HCS12 core 25MHz, pin-to-pin

📋 Справочный аналог (нет в каталоге)

MC9S12DB128CPV Максимальные параметры и электрические характеристики

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
Корпус 112-LQFP (20x20 mm)
Package Type Code LQFP
Terminal Form GULL WING
Тип монтажа Surface Mount
Connectivity CANbus, I2C, SCI, SPI
Peripherals PWM, WDT (Watchdog Timer)
Operating Temperature Grade INDUSTRIAL
Part Status Obsolete / NRND
Series HCS12DB

Конфигурация выводов MC9S12DB128CPV

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Контакт 1 PA0 — Port A bit 0 (GPIO / IRQ)
Контакт 2 PA1 — Port A bit 1 (GPIO / IRQ)
Контакт 3 PA2 — Port A bit 2 (GPIO)
Контакт 4 PA3 — Port A bit 3 (GPIO)
Контакт 5 PA4 — Port A bit 4 (GPIO)
Контакт 6 PA5 — Port A bit 5 (GPIO)
Контакт 7 PA6 — Port A bit 6 (GPIO)
Контакт 8 PA7 — Port A bit 7 (GPIO)
Контакт 9 PB0 — Port B bit 0 (GPIO / SPI)
Контакт 10 PB1 — Port B bit 1 (GPIO / SPI)
Контакт 11 PB2 — Port B bit 2 (GPIO / SPI)
Контакт 12 PB3 — Port B bit 3 (GPIO / SPI)
Контакт 13 PB4 — Port B bit 4 (GPIO / SPI)
Контакт 14 PB5 — Port B bit 5 (GPIO / SPI)
Контакт 15 PB6 — Port B bit 6 (GPIO / SPI)
Контакт 16 PB7 — Port B bit 7 (GPIO / SPI)
Контакт 17 PC0 — Port C bit 0 (GPIO / CAN)
Контакт 18 PC1 — Port C bit 1 (GPIO / CAN)
Контакт 19 PC2 — Port C bit 2 (GPIO)
Контакт 20 PC3 — Port C bit 3 (GPIO)
Контакт 21 PC4 — Port C bit 4 (GPIO)
Контакт 22 PC5 — Port C bit 5 (GPIO)
Контакт 23 PC6 — Port C bit 6 (GPIO)
Контакт 24 PC7 — Port C bit 7 (GPIO)
Контакт 25 PD0 — Port D bit 0 (GPIO / SCI)
Контакт 26 PD1 — Port D bit 1 (GPIO / SCI)
Контакт 27 PD2 — Port D bit 2 (GPIO / SCI)
Контакт 28 PD3 — Port D bit 3 (GPIO / SCI)
Контакт 29 PD4 — Port D bit 4 (GPIO / SCI)
Контакт 30 PD5 — Port D bit 5 (GPIO / SCI)
Контакт 31 PD6 — Port D bit 6 (GPIO / SCI)
Контакт 32 PD7 — Port D bit 7 (GPIO / SCI)
Контакт 33 PE0 — Port E bit 0 (GPIO / PWM)
Контакт 34 PE1 — Port E bit 1 (GPIO / PWM)
Контакт 35 PE2 — Port E bit 2 (GPIO / PWM)
Контакт 36 PE3 — Port E bit 3 (GPIO / PWM)
Контакт 37 PE4 — Port E bit 4 (GPIO / PWM)
Контакт 38 PE5 — Port E bit 5 (GPIO / PWM)
Контакт 39 PE6 — Port E bit 6 (GPIO / PWM)
Контакт 40 PE7 — Port E bit 7 (GPIO / PWM)
Контакт 41 PF0 — Port F bit 0 (GPIO / ADC)
Контакт 42 PF1 — Port F bit 1 (GPIO / ADC)
Контакт 43 PF2 — Port F bit 2 (GPIO / ADC)
Контакт 44 PF3 — Port F bit 3 (GPIO / ADC)
Контакт 45 PF4 — Port F bit 4 (GPIO / ADC)
Контакт 46 PF5 — Port F bit 5 (GPIO / ADC)
Контакт 47 PF6 — Port F bit 6 (GPIO / ADC)
Контакт 48 PF7 — Port F bit 7 (GPIO / ADC)
Контакт 49 PG0 — Port G bit 0 (GPIO)
Контакт 50 PG1 — Port G bit 1 (GPIO)
Контакт 51 PG2 — Port G bit 2 (GPIO)
Контакт 52 PG3 — Port G bit 3 (GPIO)
Контакт 53 PG4 — Port G bit 4 (GPIO)
Контакт 54 PG5 — Port G bit 5 (GPIO)
Контакт 55 PG6 — Port G bit 6 (GPIO)
Контакт 56 PG7 — Port G bit 7 (GPIO)
Контакт 57 PH0 — Port H bit 0 (GPIO / I2C)
Контакт 58 PH1 — Port H bit 1 (GPIO / I2C)
Контакт 59 PH2 — Port H bit 2 (GPIO / I2C)
Контакт 60 PH3 — Port H bit 3 (GPIO / I2C)
Контакт 61 PH4 — Port H bit 4 (GPIO / I2C)
Контакт 62 PH5 — Port H bit 5 (GPIO / I2C)
Контакт 63 PH6 — Port H bit 6 (GPIO / I2C)
Контакт 64 PH7 — Port H bit 7 (GPIO / I2C)
Контакт 65 PJ0 — Port J bit 0 (GPIO / CAN)
Контакт 66 PJ1 — Port J bit 1 (GPIO / CAN)
Контакт 67 PJ2 — Port J bit 2 (GPIO)
Контакт 68 PJ3 — Port J bit 3 (GPIO)
Контакт 69 PJ4 — Port J bit 4 (GPIO)
Контакт 70 PJ5 — Port J bit 5 (GPIO)
Контакт 71 PJ6 — Port J bit 6 (GPIO)
Контакт 72 PJ7 — Port J bit 7 (GPIO)
Контакт 73 PK0 — Port K bit 0 (GPIO)
Контакт 74 PK1 — Port K bit 1 (GPIO)
Контакт 75 PK2 — Port K bit 2 (GPIO)
Контакт 76 PK3 — Port K bit 3 (GPIO)
Контакт 77 PK4 — Port K bit 4 (GPIO)
Контакт 78 PK5 — Port K bit 5 (GPIO)
Контакт 79 PK6 — Port K bit 6 (GPIO)
Контакт 80 PK7 — Port K bit 7 (GPIO)
Контакт 81 PM0 — Port M bit 0 (GPIO)
Контакт 82 PM1 — Port M bit 1 (GPIO)
Контакт 83 PM2 — Port M bit 2 (GPIO)
Контакт 84 PM3 — Port M bit 3 (GPIO)
Контакт 85 PM4 — Port M bit 4 (GPIO)
Контакт 86 PM5 — Port M bit 5 (GPIO)
Контакт 87 PM6 — Port M bit 6 (GPIO)
Контакт 88 PM7 — Port M bit 7 (GPIO)
Контакт 89 PP0 — Port P bit 0 (GPIO / PWM)
Контакт 90 PP1 — Port P bit 1 (GPIO / PWM)
Контакт 91 PP2 — Port P bit 2 (GPIO / PWM)
Контакт 92 PP3 — Port P bit 3 (GPIO / PWM)
Контакт 93 PP4 — Port P bit 4 (GPIO / PWM)
Контакт 94 PP5 — Port P bit 5 (GPIO / PWM)
Контакт 95 PP6 — Port P bit 6 (GPIO / PWM)
Контакт 96 PP7 — Port P bit 7 (GPIO / PWM)
Контакт 97 PS0 — Port S bit 0 (GPIO / SPI)
Контакт 98 PS1 — Port S bit 1 (GPIO / SPI)
Контакт 99 PS2 — Port S bit 2 (GPIO / SPI)
Контакт 100 PS3 — Port S bit 3 (GPIO / SPI)
Контакт 101 PS4 — Port S bit 4 (GPIO / SPI)
Контакт 102 PS5 — Port S bit 5 (GPIO / SPI)
Контакт 103 PS6 — Port S bit 6 (GPIO / SPI)
Контакт 104 PS7 — Port S bit 7 (GPIO / SPI)
Контакт 105 BKGD — Background Debug Mode pin (debug + programming)
Контакт 106 MODC — Mode Control pin (BDM mode select)
Контакт 107 RESET — Active-low reset input
Контакт 108 VDDR — Voltage supply - regulator
Контакт 109 VDD — Digital supply voltage (5V)
Контакт 110 VDDPLL — PLL supply voltage
Контакт 111 VSS — Ground
Контакт 112 VSSPLL — PLL ground

Типичное применение

MC9S12DB128CPV подходит для 6 применениеs: 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.

🌡️

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.

🏭

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.

🌐

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.

🪑

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.

🧩

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.

Сводка рекомендуемых товаров

TJA1050 NXP Semiconductors Используется в: Automotive Body Control Module (BCM), HVAC Control Module, Industrial CANopen Slave Node, Sensor Conditioning and Aggregation Node MC33886 Dual H-bridge motor driver for door/window actuators Используется в: Automotive Body Control Module (BCM), Seat and Mirror Controller MCZ33290 LIN transceiver for sub-bus lighting nodes Используется в: Automotive Body Control Module (BCM) MC33035 Brushless DC motor controller for blower Используется в: HVAC Control Module MCP9700 Analog temperature sensor for cabin NTC replacement Используется в: HVAC Control Module MAX1487 RS-485 fallback interface for legacy fieldbus migration Используется в: Industrial CANopen Slave Node PCA82C250 Alternative CAN physical layer interface Используется в: Industrial CANopen Slave Node TJA1041 High-speed CAN transceiver with fault-tolerant mode Используется в: Automotive Gateway ECU TJA1027 LIN transceiver for sub-bus side connections Используется в: Automotive Gateway ECU, Seat and Mirror Controller MCZ33298 Octal high-side switch for status indicator LEDs Используется в: Automotive Gateway ECU A3950 DMOS full-bridge PWM motor driver Используется в: Seat and Mirror Controller MAX31855 Thermocouple-to-digital converter companion Используется в: Sensor Conditioning and Aggregation Node AD8422 Instrumentation amplifier for strain-gauge front-end Используется в: Sensor Conditioning and Aggregation Node
What is the core architecture of MC9S12DB128CPV?
The MC9S12DB128CPV uses the NXP HCS12 16-bit core running at 25 MHz. According to the NXP HCS12DB family documentation, the HCS12 core is a variable-length instruction set with BDM (Background Debug Mode) for non-intrusive in-circuit debug, accumulator-based memory model with X/Y/D index pointers, and an interrupt controller supporting prioritized interrupts with deterministic latency suitable for automotive body control and gateway applications.
How much Flash and RAM does MC9S12DB128CPV have?
The MC9S12DB128CPV integrates 128 KB (128K x 8) of on-chip Flash program memory, 8 KB of general-purpose RAM, and 2K x 8 of byte-erasable EEPROM for non-volatile data storage. This matches the HCS12DB128 device within the HCS12DB family. The Flash is organized in 1 KB pages and supports in-application programming via the BDM or serial bootloader.
What package does MC9S12DB128CPV use?
The MC9S12DB128CPV is offered in a 112-pin LQFP (Low-profile Quad Flat Pack) with a 20x20 mm body and 0.65 mm pitch, gull-wing leads, and surface-mount construction. This is the most common HCS12DB128 package and is recommended for production automotive ECUs requiring moderate I/O count and good thermal performance with standard SMT lines.
Does MC9S12DB128CPV have CAN controllers?
Yes, the MC9S12DB128CPV integrates CANbus (Controller Area Network) as one of its four hardware connectivity peripherals, alongside I2C, SCI (UART), and SPI. According to the HCS12DB128 datasheet, the CAN module is compatible with CAN 2.0A/B at up to 1 Mbit/s, making it suitable for automotive body and chassis networks (Class B/C), CANopen industrial slaves, and gateway nodes.
How many GPIO pins does MC9S12DB128CPV provide?
The MC9S12DB128CPV exposes 91 general-purpose I/O pins. This high I/O count allows direct connection to multiple switch panels, sensor arrays, and actuator drivers in body-electronics modules, eliminating external I/O expanders and reducing BOM cost in HVAC, seat, and mirror controller designs.
Is MC9S12DB128CPV still in production?
The MC9S12DB128CPV is classified as Obsolete/NRND (Not Recommended for New Designs) per multiple distributor listings. NXP recommends migration to newer HCS12/S12Z family members for new programs; existing production lines and authorized distributor inventory continue to support the part for established automotive and industrial platforms.
What is the difference between MC9S12DB128CPV and MC9S12DG128CFUE?
Both belong to the HCS12 16-bit family with 128 KB Flash. The DB128 sub-family emphasizes CAN + peripheral richness, while the DG128 typically uses a different package option and slightly different peripheral mix. Pin-for-pin compatibility is NOT guaranteed because they use different packages (112-LQFP vs 80-QFP), so a PCB redesign would be required.
Where can I download the MC9S12DB128CPV datasheet PDF?
The official NXP MC9S12DB128CPV datasheet (HCS12DB Family reference manual plus device-specific data sheet) is available from the NXP product page at https://www.nxp.com/docs/en/data-sheet/MC9S12DB128.pdf. Distributor mirrors (Octopart, alldatasheet, findic) also host the same document for convenience.
Where can I buy MC9S12DB128CPV and what is the price?
The MC9S12DB128CPV is currently in stock at 21 distributors per Octopart, with Heisener showing 26,976 pieces available as of October 2026. Authorized channels include NXP-direct franchises; price ranges approximately $10.95 at 1000 pieces and $18.50 at qty 1, depending on lead time and packaging. Note: prices as of 2026-10-17 and the part is NRND.
What is the lead time for MC9S12DB128CPV?
Lead time for the MC9S12DB128CPV is typically immediate shipment from authorized distributors with stock on hand (DigiKey shows ships-today capability). For volume orders (>=5000 units), lead times extend to 8-12 weeks from NXP or authorized brokers. Heisener quotes March 26-31 as the typical delivery window for expedited orders.
What is the best drop-in replacement for MC9S12DB128CPV?
Because the MC9S12DB128CPV is in the 112-LQFP package, the closest drop-in NXP replacements are the same-package HCS12 family members with identical pinout. The MC9S12DT256CPV (256 KB Flash, 112-LQFP) is the standard recommended upgrade within the same footprint. Cross-brand 16-bit automotive MCU drop-ins at this package are scarce; most cross-brand options require different packages and pin remapping.
Can I replace MC9S12DB128CPV with an S12Z family MCU?
NXP's S12Z family (e.g., S12ZVL32, S12ZVLA) is the architectural successor but uses different packages (mostly 48/64/80-QFP) and different peripheral addressing, so it is NOT a drop-in replacement. Migration to S12Z requires PCB redesign, software updates, and re-validation. For footprint-compatible upgrades, choose a higher-memory 112-LQFP HCS12 part.
How do I program the MC9S12DB128CPV in-circuit?
Programming the MC9S12DB128CPV in-circuit is done via the BDM (Background Debug Mode) interface using the BKGD, MODC, GND, and VDD pins. A P&E Multilink or NXP CodeWarrior / S32 Design Studio debugger connects to these four pins and provides erase, program, and verify. BDM is non-intrusive, allowing live debug without halting application execution for read accesses.
What development tools support MC9S12DB128CPV?
The MC9S12DB128CPV is supported by NXP's CodeWarrior for HCS12 (classic IDE), S32 Design Studio (newer Eclipse-based IDE), and P&E Micro computer-control BDM tools. Free evaluation boards from third parties (e.g., Axiom Manufacturing CME12-DB128) provide full hardware platforms. Open-source toolchains (GCC for HCS12) are also available via community ports.
Is MC9S12DB128CPV RoHS compliant?
The MC9S12DB128CPV from NXP USA Inc. is qualified for lead-free / RoHS-compliant assembly per the LQFP package markings; however, the official RoHS certificate document number is not provided in the current distributor data. Engineers requiring formal compliance proof should request the RoHS CoC from NXP or the franchised distributor before placing automotive-grade orders.

Справочные инженерные данные для MC9S12DB128CPV — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose the MC9S12DB128CPV when you need a mature, automotive-pedigree 16-bit MCU with 128KB Flash, 91 GPIO, and integrated CAN for body controllers, HVAC, or industrial CANopen slaves where the HCS12 codebase is already in place. For memory-constrained applications (128KB becoming tight), migrate within the same footprint to MC9S12DT256CPV which doubles Flash without PCB changes. For brand-new designs, evaluate the NXP S12Z family or KEA/Cortex-M0+ alternatives - they offer lower power but require new code investment. Avoid the DB128CPV for new programs if longevity is critical; it is Obsolete/NRND per current distributor data and supply for >5 year automotive production runs should be confirmed with NXP franchised distributors.

Сравнение с аналогами

Параметр Этот товар 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

Ключевые отличия

  • Higher memory density in same 112-LQFP footprint (против MC9S12DT128CPV)
  • Drop-in memory upgrade path available (против MC9S12DT256CPV)
  • HCS12 16-bit core mature tooling (против NXP S12Z family (e.g., S12ZVLA32))

Заметки по проектированию

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.

Информация о соответствии

RoHS
Unknown
REACH
Unknown
AEC-Q100
Qualified
Без свинца
Yes
Без галогенов
Unknown
Конфликтные минералы
Compliant

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.

Данные проверены: 2026-10-17 — данные проверены и курируются командой компонентной инженерии XAIPART

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Связанные компоненты & термины

NXP Semiconductors MC9S12DB128CPV MC9S12DT256CPV MC9S12DB128CPVE MC9S12DB128CPVER MC9S12DT128CPV MC9S12A256CPV HCS12 16-bit microcontroller Flash memory EEPROM CANbus CAN 2.0A/B I2C SCI SPI PWM Watchdog Timer BDM (Background Debug Mode) LQFP-112 RoHS AEC-Q100 automotive body control CANopen
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