NXP Semiconductors MC912DG128AVPVE

Overview

MC912DG128AVPVE from Freescale Semiconductor is a 16-bit HCS12 microcontroller featuring 128 KB on-chip flash memory, 4 KB RAM, and integrated CAN 2.0A/B controller (MSCAN), PWM, 16-channel 10-bit ADC, and enhanced capture timer. It operates at up to 25 MHz core frequency with PLL clock multiplication and supports automotive-grade temperature range (−40°C to +125°C) in a 112-pin QFP package.

For engineers reviewing the MC912DG128AVPVE datasheet, MC912DG128AVPVE pinout, MC912DG128AVPVE application, or MC912DG128AVPVE equivalent, this page delivers verified functional architecture, validated peripheral timing, real-world automotive control use cases, and direct alternative part comparisons for ECU design continuity.

Technical Context

The MC912DG128AVPVE implements the HCS12 CPU core with 16-bit data/24-bit address bus, supporting background debug mode (BDM) for in-circuit emulation. Its clock system integrates a crystal oscillator, PLL with programmable multiplication (×1 to ×32), and multiple clock dividers enabling independent peripheral clock domains for MSCAN, SCI, SPI, and ATD.

Peripheral integration includes an 8-channel PWM module with center/left-aligned modes and dead-time insertion, dual 16-bit enhanced capture timers with input capture/output compare/pulse accumulation, and a dual-ATD subsystem with simultaneous sampling capability across two 8-channel analog inputs.

Key Specifications

Pinout & Package

MC912DG128AVPVE is housed in a 112-pin Low-Profile Quad Flat Package (LQFP) with 0.65 mm lead pitch and 20 mm × 20 mm body size. Pin assignments follow the standard HCS12 DG-series layout, including dedicated CANH/CANL differential pins, dual ATD reference inputs (VRL/VRH), and multiplexed I/O ports with key wake-up capability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC912DG128AVPVE, MC9S12XDP512 offers scalable performance for next-gen ECU architectures, while S912XEQ512J2 improves data reliability and robustness-both retain pin-compatible packaging and toolchain compatibility with CodeWarrior IDE and P&E Multilink BDM.

Availability

MC912DG128AVPVE is available at Aetrix Electronics and suitable for automotive powertrain control, transmission management, and body electronics requiring stable component supply across extended product lifecycles.

Supply support for MC912DG128AVPVE 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, AEC-Q100-qualified silicon for engine, transmission, and safety systems.

The MC912DG128AVPVE belongs to the HCS12 family designed specifically for cost-sensitive, high-reliability automotive control applications where deterministic real-time response, CAN integration, and long-term supply stability are critical.

FAQ

What is the maximum operating frequency of the MC912DG128AVPVE core?

The MC912DG128AVPVE core runs at a maximum internal bus clock frequency of 25 MHz, achieved via its integrated Phase-Locked Loop (PLL) that multiplies the external crystal oscillator input (typically 4–8 MHz) by factors of 1 to 32. This 25 MHz clock drives all CPU and peripheral logic, enabling deterministic instruction execution for real-time automotive control loops.

Does the MC912DG128AVPVE support CAN FD or only classical CAN?

The MC912DG128AVPVE integrates the MSCAN controller compliant with ISO 11898-1:2003 and supports only Classical CAN (CAN 2.0A/B) at up to 1 Mbps. It does not support CAN FD features such as flexible data-rate, extended data length, or CRC enhancements. For CAN FD, designers must select newer S32K or SPC5 families.

How many analog input channels does the MC912DG128AVPVE have, and what is their resolution?

The MC912DG128AVPVE contains two independent 10-bit Analog-to-Digital Converter (ATD) modules-ATD0 and ATD1-each with eight analog input channels (AD0–AD7 and AD8–AD15), for a total of 16 channels. Each channel achieves 10-bit resolution with a typical conversion time of 8 µs per sample, supporting simultaneous sampling across both modules.

Is the MC912DG128AVPVE pin-compatible with other HCS12 derivatives like the MC912DT128A?

No, the MC912DG128AVPVE is not pin-compatible with the MC912DT128A. While both are 112-pin QFP devices in the HCS12 family, their pin assignments differ significantly-particularly for analog references, CAN signals, and peripheral multiplexing. The DG-series uses dedicated ATD reference pins (VRL/VRH) and isolated CANH/CANL, whereas DT-series shares pins with general I/O and lacks native CAN transceiver interface routing.

What debug interface does the MC912DG128AVPVE use, and what tools support it?

The MC912DG128AVPVE uses the Background Debug Mode (BDM) single-wire interface for in-circuit debugging and programming. It is fully supported by P&E Micro's Multilink Universal and Cyclone Pro debug probes, as well as Freescale/NXP CodeWarrior Development Studio v5.1+ and S32DS for S12X. No JTAG header is required-debugging connects directly via BKGD pin.