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NXP Semiconductors MC9S12DB128CPVER
- Part No.:
- MC9S12DB128CPVER
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
MC9S12DB128CPVER.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,397
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Product details
Overview
MC9S12DB128CPVER from Freescale Semiconductor is a 16-bit automotive microcontroller featuring 128KB Flash EEPROM, 8KB RAM, 2KB EEPROM, dual 10-bit ADCs (16-channel total), two CAN 2.0A/B modules, and an enhanced capture timer (ECT). It operates at up to 25MHz bus speed in single-chip mode and targets body control modules, gateway ECUs, and multiplexed lighting systems.
For engineers reviewing the MC9S12DB128CPVER datasheet, MC9S12DB128CPVER pinout, MC9S12DB128CPVER application, or MC9S12DB128CPVER equivalent, key selection criteria include CAN interface count, 112-pin LQFP package compatibility, 5V-tolerant I/O with 2.5V core logic, and background debug (BDM) support for automotive firmware development.
Technical Context
The MC9S12DB128CPVER implements the CPU12 core with M68HC11 instruction set compatibility, HCS12 instruction queue, and enhanced indexed addressing. Its System Integration Module (SIM) manages clock generation via PLL, interrupt control, and multiplexed external bus interfacing in 8- or 16-bit modes.
It integrates two asynchronous SCI interfaces, two SPI modules (SPI0/SPI1), I²C, SAE J1850 BDLC, and a flexible ECT with eight input-capture/output-compare channels. Memory mapping supports configurable Flash page windows and EEPROM alignment to 2KB boundaries.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | CPU12 - 16-bit architecture with M68HC11 instruction set compatibility and HCS12 instruction queue. |
| Flash Memory | 128KB - Configurable as fixed 16KB boot sector plus eight 16KB pages for application code and data storage. |
| RAM | 8KB - Mappable to any 8KB boundary; used for variables, stack, and real-time buffers in automotive control loops. |
| EEPROM | 2KB - Mappable to any 2KB boundary; retains calibration data and configuration settings across power cycles. |
| CAN Interfaces | 2 × CAN 2.0A/B - Software-compatible modules supporting 1Mbps, with five receive and three transmit buffers per module. |
| ADC | 2 × 10-bit, 8-channel - Total 16 analog inputs; supports external trigger for synchronized sampling in motor control or sensor fusion. |
| Package | 112-pin LQFP - 20×20mm body, 0.4mm pitch; provides 91 I/O lines including 22 with interrupt capability (Ports H, P, J, IRQ/XIRQ). |
| Operating Voltage | 5V I/O / 2.5V core - Internal regulator converts 5V supply to 2.5V logic voltage; A/D inputs rated for 5V full-scale range. |
Pinout & Package
MC9S12DB128CPVER uses a 112-pin LQFP (case no. 987) with 0.4mm pitch, 20×20mm body, and exposed thermal pad. Pin functions follow MC9S12D-Family routing: CAN0/CAN4 share pins with J1850 and I²C; SPI2 routes to PH7:4; PWM channels map to PP0–PP7 and PH0–PH7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PM0/PM1 | CAN0 RX/TX | Dedicated differential CAN transceiver interface; supports wake-up from STOP mode via low-pass filter. |
| PJ6/PJ7 | CAN4 RX/TX | Software-routable CAN channel; shares pins with I²C SDA/SCL; requires register configuration to enable CAN function. |
| PA0–PA7 | ADDR8–ADDR15/DATA8–DATA15 | Multiplexed external bus interface; enables expanded memory access in 16-bit wide mode or cost-optimized 8-bit narrow mode. |
| PP0–PP7 | PWM0–PWM7 | Eight independent PWM outputs; configurable as 8×8-bit or 4×16-bit; center/left-aligned with programmable clock prescaling. |
| PE0/PE1 | XIRQ/IRQ | Edge-triggered non-maskable and maskable interrupts; used for critical fault detection and periodic system wake-up events. |
| VDDA/VSSA | Analog Power/Ground | Isolated 5V analog supply domain; decoupling required to maintain 10-bit ADC accuracy under digital switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| Single-wire BDM | Enables in-circuit debugging and flash programming without dedicated JTAG hardware; essential for automotive ECU validation. |
| PLL clock multiplier | Generates internal bus clock up to 25MHz from 4–8MHz crystal; allows dynamic trade-off between performance and power consumption. |
| Wake-up interrupt sources | 22 configurable I/O pins (Port H:8, Port P:8, Port J:4, IRQ/XIRQ) allow selective entry from STOP/WAIT modes-critical for low-power body electronics. |
| Flexible CAN filtering | Programmable identifier filters (2×32-bit, 4×16-bit, or 8×8-bit) reduce CPU overhead by offloading message acceptance filtering in hardware. |
| Enhanced Capture Timer | Eight-channel ECT with input capture buffering and successive sampling on four channels-supports precise timing of engine crankshaft position signals. |
Applications
| Body Control Module | Door Module Gateway |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in modern vehicles. IC Role / Device Role / Timing Role: Main MCU executing LIN slave communication, PWM-driven motor control, and ADC-based switch monitoring. Use Value: Dual CAN interfaces enable seamless integration with vehicle backbone and sub-networks; 128KB Flash accommodates multi-feature firmware with OTA update space. | Use Scenario: Aggregation and translation of signals between LIN-based door sensors and high-speed CAN chassis networks. IC Role / Device Role / Timing Role: Protocol gateway with real-time message filtering, prioritization, and retransmission scheduling. Use Value: Hardware-accelerated CAN filtering reduces CPU load during peak network traffic; BDM support simplifies field calibration updates. |
| Roof Console ECU | Seat Control Unit |
Use Scenario: Occupancy sensing, sunroof position control, ambient light adaptation, and HVAC zone coordination. IC Role / Device Role / Timing Role: Sensor fusion hub using dual 10-bit ADCs for thermistor and potentiometer inputs, plus PWM for actuator drive. Use Value: 5V-tolerant I/O directly interfaces with legacy automotive sensors; 2KB EEPROM stores seat position profiles and user preferences. | Use Scenario: Motorized seat adjustment with position feedback, heating element control, and occupant detection via capacitive sensing. IC Role / Device Role / Timing Role: Real-time motion controller with ECT-based quadrature decoding and 8-channel PWM for dual-motor drive. Use Value: Eight independent PWM outputs enable simultaneous control of seat motors and heaters; 8KB RAM buffers sensor data for adaptive learning algorithms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12DG128CPVER | No J1850 BDLC module; identical Flash/RAM/EEPROM, CAN count, and package. | Lacks SAE J1850 support-unsuitable for legacy GM/Ford powertrain diagnostics or body networks requiring BDLC. | Select MC9S12DB128CPVER when J1850 compliance is mandatory; otherwise DG128 offers same core functionality at lower cost. |
| S912XDP512J0VLQ | 32-bit S12X core, 512KB Flash, 32KB RAM, 8MB external address space; pin-compatible but not software-compatible. | Targets next-generation ECUs needing higher compute throughput, larger memory, and enhanced debug features (e.g., trace buffer). | Choose S912XDP512J0VLQ for new designs requiring scalability beyond 16-bit limits; MC9S12DB128CPVER remains optimal for cost-sensitive, mature-platform derivatives. |
Compared with MC9S12DB128CPVER, MC9S12DG128CPVER removes J1850 while retaining all other peripherals, making it suitable for CAN-only architectures; S912XDP512J0VLQ delivers 32-bit performance and memory headroom but requires full firmware rework due to architectural divergence.
Availability
MC9S12DB128CPVER is available at Aetrix Electronics and suitable for automotive body electronics, gateway ECUs, and multiplexed lighting systems requiring stable component supply across extended temperature ranges (−40°C to +125°C).
Supply support for MC9S12DB128CPVER 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) is a global leader in automotive microcontrollers, known for robust, AEC-Q100 qualified silicon and comprehensive toolchain support.
The MC9S12D-Family was designed specifically for automotive multiplexing applications, enabling scalable, pin-compatible migration across memory and peripheral configurations while maintaining software compatibility.
FAQ
What is the maximum bus speed supported by the MC9S12DB128CPVER?
The MC9S12DB128CPVER supports a maximum bus speed of 25MHz in single-chip mode, corresponding to a 50MHz core-equivalent frequency. In expanded bus modes, the maximum bus speed is 20MHz. This performance level is achieved using the integrated PLL clock multiplier with an external 4–8MHz crystal reference.
Does the MC9S12DB128CPVER support SAE J1850 Variable Pulse Width (VPW) protocol?
Yes, the MC9S12DB128CPVER includes a dedicated BDLC (Body Diagnostic Link Controller) module compliant with SAE J1850 VPW at 10.4kbps. It supports byte-level receive/transmit, 4x receive mode, and is routable to PJ0/PJ1 pins-enabling direct connection to legacy GM diagnostic interfaces without external transceivers.
How many CAN modules does the MC9S12DB128CPVER integrate, and what are their capabilities?
The MC9S12DB128CPVER integrates two CAN 2.0A/B software-compatible modules (CAN0 and CAN4). Each supports 1Mbps operation, five receive and three transmit buffers, flexible identifier filtering (2×32-bit, 4×16-bit, or 8×8-bit), and four dedicated interrupt channels (Receive, Transmit, Error, Wake-up).
What package type and pin count does the MC9S12DB128CPVER use?
The MC9S12DB128CPVER uses a 112-pin LQFP package (case no. 987) with 0.4mm pitch and 20×20mm body dimensions. It provides 91 general-purpose I/O lines, including 22 with interrupt capability, and supports both 8-bit narrow and 16-bit wide external bus configurations.
Is the MC9S12DB128CPVER compatible with Freescale's Background Debug Mode (BDM)?
Yes, the MC9S12DB128CPVER supports single-wire Background Debug Mode (BDM) via the MODC/TAGHI/BKGD pin (Pin 57 in 112LQFP). This enables real-time debugging, flash programming, and hardware breakpoint execution without requiring a full JTAG interface-critical for automotive ECU development and field updates.
MC9S12DB128CPVER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 112-LQFP
- Series:
- HCS12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.35V ~ 5.25V
- Data Converters:
- A/D 16x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12DB128CPVER FAQ
1.How can I place an order for MC9S12DB128CPVER through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12DB128CPVER 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 MC9S12DB128CPVER reliable?
The price and inventory of MC9S12DB128CPVER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12DB128CPVER is usually 5 days.
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MC9S12DB128CPVER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12DB128CPVER 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 MC9S12DB128CPVER?
For technical support, including MC9S12DB128CPVER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12DB128CPVER requirements.
6.How does Aetrix verify that MC9S12DB128CPVER is sourced from the original manufacturer or authorized distributors?
All MC9S12DB128CPVER 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 MC9S12DB128CPVER meets industry standards.
7.What is the process for return or replacement of MC9S12DB128CPVER?
All MC9S12DB128CPVER units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12DB128CPVER, 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 MC9S12DB128CPVER part is unused and in its original packaging.
Return procedure for MC9S12DB128CPVER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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