NXP Semiconductors MC9S12DG128MPVE

Overview

MC9S12DG128MPVE from NXP (formerly Freescale) is a 16-bit HCS12 microcontroller with 128 KB on-chip Flash, 8 KB RAM, and integrated CAN 2.0B controller. It operates at up to 25 MHz bus frequency, supports 5 V I/O tolerance, and features 10-bit ATD converter with 16 channels. Used in automotive body control modules requiring robust real-time control and CAN network integration.

For engineers reviewing the MC9S12DG128MPVE datasheet, MC9S12DG128MPVE pinout, MC9S12DG128MPVE application, or MC9S12DG128MPVE equivalent, key selection criteria include its 112-pin LQFP package, 5 V operation, background debug interface (BDM), and AEC-Q100 qualification for automotive use - all confirmed in the official Device User Guide V02.17.

Technical Context

The MC9S12DG128MPVE implements the HCS12 CPU core with 16-bit data path, 24-bit addressing, and enhanced BDM for in-circuit debugging. Its Clock and Reset Generator (CRG) includes PLL with programmable multiplication factor (1–32×), supporting stable bus frequencies from 0.25 MHz to 25 MHz using external crystal or oscillator input.

It integrates multiple peripherals including two asynchronous SCI modules, three synchronous SPI interfaces, one I²C bus, 8-channel PWM, 16-channel 10-bit ATD, and MSCAN with full CAN 2.0B compliance. Memory protection is enforced via security byte and flash lock bits, preventing unauthorized access to firmware.

Key Specifications

Pinout & Package

The MC9S12DG128MPVE is housed in a 112-pin Low-Profile Quad Flat Package (LQFP) with exposed thermal pad, optimized for automotive PCB thermal management and mechanical reliability under vibration.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with MC9S12DG128MPVE, MC9S12DJ128CPVE removes CAN capability but adds Byteflight support, while S912XDP512J0VLH delivers significantly greater memory and dual CAN - making it suitable for ASIL-B designs where MC9S12DG128MPVE serves cost-optimized AEC-Q100 Class 2 applications.

Availability

MC9S12DG128MPVE is available at Aetrix Electronics and suitable for automotive body control, instrument cluster, and telematics applications requiring stable component supply, long-term lifecycle support, and AEC-Q100 qualified components.

Supply support for MC9S12DG128MPVE 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

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep heritage in automotive microcontrollers from its Freescale acquisition.

The MC9S12DG128MPVE belongs to the HCS12 family - engineered specifically for cost-sensitive, high-reliability automotive applications such as body electronics and subsystem controllers where 5 V operation and CAN integration are essential.

FAQ

What is the maximum bus frequency supported by the MC9S12DG128MPVE?

The MC9S12DG128MPVE supports a maximum bus frequency of 25 MHz, achieved via its on-chip PLL with programmable multiplication factor (1–32×) and external crystal input (typically 4–8 MHz). This frequency enables deterministic real-time execution for automotive control loops and meets timing constraints in body control and instrumentation applications. The PLL lock time and jitter specifications are documented in Appendix A-5.3 of the Device User Guide V02.17.

Does the MC9S12DG128MPVE include an integrated voltage regulator?

Yes, the MC9S12DG128MPVE includes an on-chip voltage regulator that generates a stable 2.5 V supply (VDDR) for the core logic, CPU, and internal memory. This eliminates the need for an external LDO in many automotive designs. The regulator is enabled via the VREGEN pin and supports bypass capacitor configurations specified in Section 22 of the Device User Guide. Input voltage range is 4.5–5.5 V on VDDX.

Is the MC9S12DG128MPVE qualified for automotive use?

Yes, the MC9S12DG128MPVE carries AEC-Q100 qualification, confirming its reliability for automotive applications across temperature grades. The "PVE" suffix denotes lead-free packaging and automotive-grade screening. Electrical characteristics, thermal performance, and failure-in-time (FIT) rates meet AEC-Q100 Class 2 requirements (−40°C to +105°C ambient), as validated in Freescale's qualification reports referenced in the Device User Guide revision history.

How many CAN interfaces does the MC9S12DG128MPVE support?

The MC9S12DG128MPVE integrates one MSCAN module compliant with ISO 11898-1 (CAN 2.0B), supporting bit rates up to 1 Mbit/s. It uses dedicated pins PJ6 (RXCAN0) and PJ7 (TXCAN0) and includes hardware message filtering, transmit/receive buffers, and error confinement logic. No second CAN channel is present - unlike derivatives such as S912XDP512J0VLH which offer dual CAN.

What debug interface does the MC9S12DG128MPVE provide?

The MC9S12DG128MPVE provides a single-wire Background Debug Mode (BDM) interface via the BKGD pin, enabling in-circuit programming, real-time debugging, register inspection, and flash memory manipulation without halting system operation. BDM is fully supported by Freescale's CodeWarrior IDE and third-party tools like PEmicro. The interface requires no additional pins beyond BKGD and ground, simplifying board layout for production and service programming.