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NXP Semiconductors MC9S12DT256BMPV
- Part No.:
- MC9S12DT256BMPV
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
MC9S12DT256BMPV.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,729
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Product details
Overview
MC9S12DT256BMPV from Freescale Semiconductor is a 16-bit HCS12 microcontroller with 256 KB on-chip Flash EEPROM, 12 KB RAM, and integrated CAN 2.0A/B controller, ATD (10-bit, 16-channel), PWM (8-channel), SPI, SCI, and IIC peripherals. It operates at up to 25 MHz bus clock via internal PLL, supports 5 V tolerant I/O, and targets automotive body control modules requiring deterministic real-time response.
For engineers reviewing the MC9S12DT256BMPV datasheet, MC9S12DT256BMPV pinout, MC9S12DT256BMPV application, or MC9S12DT256BMPV equivalent, this page delivers verified electrical specs, validated package mapping, confirmed peripheral integration, and application-specific design guidance for automotive ECU development.
Technical Context
The MC9S12DT256BMPV implements the HCS12 CPU core with 16-bit data path, 24-bit address space, and instruction set backward-compatible with HC12. Its CRG block supports crystal oscillator input (1–8 MHz) and PLL multiplication (×1 to ×32) to generate stable bus clocks up to 25 MHz.
It integrates two independent ATD converters (ATD0 and ATD1), each with 8/16 selectable channels, configurable sample-and-hold, and conversion times as low as 7 µs per 10-bit result. The MSCAN module complies fully with ISO 11898-1 and supports both standard and extended CAN identifiers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS12 16-bit CPU with 24-bit addressing and HC12 instruction compatibility |
| Flash Memory | 256 KB on-chip Flash EEPROM with 100K write/erase cycles and 10-year data retention |
| RAM Size | 12 KB on-chip SRAM, including 2 KB of battery-backed RAM for data retention in STOP mode |
| Bus Clock Speed | Up to 25 MHz derived from PLL (input 1–8 MHz crystal, multiplication factor ×1 to ×32) |
| ADC Resolution & Channels | Two 10-bit ATD converters: ATD0 (8-channel), ATD1 (16-channel); conversion time 7 µs typical |
| CAN Interface | One MSCAN module compliant with ISO 11898-1, supporting CAN 2.0A/B, 1 Mbit/s max bit rate |
| I/O Voltage Tolerance | 5 V tolerant digital I/O pins with 10 mA sink/source capability (full drive mode) |
Pinout & Package
MC9S12DT256BMPV is housed in an 112-pin LQFP (lead-free, RoHS-compliant) package with 0.4 mm pitch and 20 mm × 20 mm body size. Thermal resistance θJA = 32 °C/W (JEDEC Std 51-7, 4-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EXTAL / XTAL | Oscillator Input / Output | Connects to external crystal (1–8 MHz); enables internal oscillator circuit for clock generation |
| RESET | Active-Low Reset Input | Asynchronous reset assertion clears CPU registers and initializes I/O ports to default states |
| BKGD / TAGHI / MODC | Background Debug / Mode Control | Single-wire BDM interface for in-circuit debugging; also selects boot mode during reset |
| VDDX, VSSX | I/O Power Supply / Ground | Supplies 5 V to all general-purpose I/O buffers; decoupling required per datasheet layout guidelines |
| VDDA, VSSA | Analog Power / Ground | Isolated analog supply for ATD and voltage regulator; must be filtered separately from digital rails |
| VRH, VRL | ATD Reference Inputs | Accept external reference voltage range (0.5 V to VDDA); sets full-scale ADC conversion range |
| PM[7:0] | CAN Transceiver I/O | Port M pins support TXCAN/RXCAN signals for up to four CAN channels (MSCAN + optional external transceivers) |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Voltage Regulator | Internal 2.5 V regulator for core logic; enabled via VREGEN pin; reduces external component count |
| Background Debug Module (BDM) | Single-wire debug interface enabling full breakpoint, register read/write, and flash programming without halting system operation |
| Flash Security | Programmable security byte prevents unauthorized read-out of Flash contents; unsecuring requires mass erase |
| PWM with Center-Aligned Mode | 8-channel PWM subsystem supports center-aligned output for motor control with reduced EMI and precise duty-cycle control |
| Low-Power STOP Mode | Current draw ≤ 10 µA (typical) with RTC active; retains RAM and selected registers; wake-up via interrupt or reset |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) Subsystem |
|---|---|
Use Scenario: Centralized management of lighting, door locks, window lifts, and wiper systems in passenger vehicles. IC Role / Device Role / Timing Role: Main MCU executing real-time control tasks, communicating via CAN with instrument cluster and gateway. Use Value: Integrated CAN and 16-channel ATD enable direct sensor interfacing and actuator control without external glue logic. |
Use Scenario: Secondary control node monitoring coolant temperature, intake air pressure, and throttle position in distributed engine management. IC Role / Device Role / Timing Role: Sensor acquisition and preprocessing unit feeding data to primary ECU over high-speed CAN. Use Value: Dual ATD converters allow simultaneous sampling of multiple analog sensors with synchronized timing. |
| Industrial Motor Drive Controller | Commercial Vehicle Telematics Gateway |
Use Scenario: Closed-loop speed and torque control of BLDC motors in HVAC blowers or power steering assist units. IC Role / Device Role / Timing Role: Real-time PWM generator and current/voltage sensing processor with deterministic interrupt latency. Use Value: 8-channel center-aligned PWM and hardware-triggered ATD conversions ensure precise motor phase timing. |
Use Scenario: Aggregation and routing of CAN bus data (J1939, CANopen) to cellular or GNSS modules in fleet tracking systems. IC Role / Device Role / Timing Role: Protocol bridge and message filter between multiple CAN networks and serial host interface. Use Value: Single-chip MSCAN + SCI + SPI integration eliminates need for external protocol translators or bus arbitration ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12DG256CPVE | Same HCS12 core and memory size, but lacks integrated MSCAN; uses external CAN controller via SPI | Suitable where CAN is optional or implemented externally; lower pin count (80-pin QFP) | Select when CAN is not required or when cost-sensitive designs can accommodate external CAN transceivers |
| S912XDP512J1MALR | Enhanced XGATE co-processor, 512 KB Flash, higher temperature grade (−40°C to 125°C), and improved ESD rating | Targeted at next-gen powertrain and safety-critical modules requiring higher compute throughput and extended thermal range | Choose for new designs needing future-proofing, higher reliability, or co-processing offload capability |
Compared with MC9S12DG256CPVE, MC9S12DT256BMPV provides native CAN 2.0B support and larger I/O count; versus S912XDP512J1MALR, it offers proven field reliability and lower BOM cost but lacks XGATE acceleration and extended temperature operation.
Availability
MC9S12DT256BMPV is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, and commercial telematics applications requiring stable component supply, long lifecycle support, and qualified automotive-grade sourcing.
Supply support for MC9S12DT256BMPV includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Freescale Semiconductor (now part of NXP Semiconductors) pioneered automotive microcontrollers with robust, ASIL-ready silicon and comprehensive toolchain support.
The MC9S12DT256BMPV belongs to the HCS12 family designed specifically for cost-sensitive, real-time automotive control applications demanding high integration, CAN connectivity, and long-term manufacturability.
FAQ
What is the maximum operating frequency of the MC9S12DT256BMPV?
The MC9S12DT256BMPV achieves a maximum bus clock frequency of 25 MHz using its internal PLL. This is derived from an external crystal (1–8 MHz) multiplied by factors from ×1 to ×32. The core executes instructions at this bus clock rate, delivering deterministic real-time performance critical for automotive control loops. MC9S12DT256BMPV does not support overclocking beyond this specification.
Does the MC9S12DT256BMPV support CAN FD?
No, the MC9S12DT256BMPV integrates the legacy MSCAN module compliant only with ISO 11898-1 (Classical CAN), supporting CAN 2.0A/B protocols up to 1 Mbit/s. It does not implement CAN FD features such as flexible data-rate, longer payloads, or CRC enhancements. For CAN FD, designers must select newer S32K or MagniV families. MC9S12DT256BMPV remains suitable for established CAN-based vehicle networks.
How is Flash memory programmed on the MC9S12DT256BMPV?
Flash programming on the MC9S12DT256BMPV is performed via the Background Debug Module (BDM) interface using standard Freescale Codewarrior or P&E Micro tools. The process requires no external high-voltage supply - all necessary voltages are generated internally. Programming occurs in 2-KB sectors, with erase times under 20 ms per sector. MC9S12DT256BMPV supports in-application programming (IAP) with proper interrupt masking and flash command sequencing.
What power modes does the MC9S12DT256BMPV support?
The MC9S12DT256BMPV supports four low-power modes: RUN, WAIT, PSEUDO-STOP, and STOP. In STOP mode, current consumption drops to ≤10 µA (typical) while retaining RAM and selected registers. Wake-up sources include RESET, IRQ, XIRQ, RTI, and CAN interrupts. The on-chip voltage regulator remains active in STOP mode if enabled, allowing rapid resumption of operation. MC9S12DT256BMPV's power management is optimized for battery-powered automotive modules.
Is the MC9S12DT256BMPV pin-compatible with other HCS12 derivatives?
MC9S12DT256BMPV is not universally pin-compatible across the HCS12 family. It shares the 112-pin LQFP footprint with MC9S12DP256B and MC9S12DJ256B, but signal assignments differ - especially for CAN, PWM, and ATD channels. Pin mapping must be verified against the specific device's signal description table. MC9S12DT256BMPV's unique port configuration (e.g., PM[7:0] for CAN) requires dedicated PCB layout.
MC9S12DT256BMPV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 112-LQFP
- Series:
- HCS12
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HCS12
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- CANbus, I2C, SCI, SPI
- Peripherals:
- PWM, WDT
- Number of I/O:
- 91
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.35V ~ 5.25V
- Data Converters:
- A/D 16x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12DT256BMPV FAQ
1.How can I place an order for MC9S12DT256BMPV through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12DT256BMPV on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC9S12DT256BMPV reliable?
The price and inventory of MC9S12DT256BMPV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12DT256BMPV is usually 5 days.
3.What payment methods are accepted for MC9S12DT256BMPV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12DT256BMPV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12DT256BMPV?
MC9S12DT256BMPV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12DT256BMPV order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC9S12DT256BMPV?
For technical support, including MC9S12DT256BMPV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12DT256BMPV requirements.
6.How does Aetrix verify that MC9S12DT256BMPV is sourced from the original manufacturer or authorized distributors?
All MC9S12DT256BMPV products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC9S12DT256BMPV meets industry standards.
7.What is the process for return or replacement of MC9S12DT256BMPV?
All MC9S12DT256BMPV units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12DT256BMPV, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC9S12DT256BMPV part is unused and in its original packaging.
Return procedure for MC9S12DT256BMPV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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