NXP Semiconductors MC9S12DG128MPVER

Overview

MC9S12DG128MPVER from NXP Semiconductors (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 5V I/O, and features 10-bit ATD, PWM, SCI, SPI, and BDM debug interface. It targets automotive body control modules requiring robust real-time control and CAN network integration.

For engineers reviewing the MC9S12DG128MPVER datasheet, MC9S12DG128MPVER pinout, MC9S12DG128MPVER application, or MC9S12DG128MPVER equivalent, key selection criteria include its 112-pin LQFP package, 5V tolerant I/O, 128 KB Flash with EEPROM emulation, dual CAN channel support (CAN0/CAN4), and AEC-Q100 qualification for automotive use.

Technical Context

The MC9S12DG128MPVER implements the HCS12 CPU core with 16-bit data path, 24-bit address space, and instruction set backward-compatible with HC12. Its Clock and Reset Generator (CRG) includes PLL with programmable multiplication factor (1–32×), enabling stable 25 MHz bus clock from 4 MHz crystal input.

The device integrates two independent CAN controllers (MSCAN0 and MSCAN4), each supporting full CAN 2.0B protocol with 16 message buffers, programmable bit timing, and loopback/self-test modes. Memory protection is enforced via security byte and background debug mode lock.

Key Specifications

Pinout & Package

MC9S12DG128MPVER is housed in a 112-pin LQFP package (JEDEC MO-207, case no. 987) with exposed thermal pad. Pin assignments follow the standard HCS12 112LQFP layout defined in Figure 2-1 of the Device User Guide (V02.17).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S12DG128MPVER, the MC9S12XDP512 adds an XGATE coprocessor for offloading time-critical tasks like CAN message filtering, while the S912XDP512F0MLH offers identical functionality with formal NXP lifecycle stewardship-making both suitable upgrades where higher memory, processing, or supply continuity is needed.

Availability

MC9S12DG128MPVER is available at Aetrix Electronics and suitable for automotive body electronics, powertrain gateways, and HVAC control systems requiring stable component supply across extended production lifecycles.

Supply support for MC9S12DG128MPVER 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 focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep heritage in microcontroller innovation.

The MC9S12DG128MPVER belongs to the HCS12 family, designed specifically for cost-sensitive, high-reliability automotive applications requiring CAN networking, real-time control, and AEC-Q100 compliance.

FAQ

What is the maximum operating temperature range for the MC9S12DG128MPVER?

The MC9S12DG128MPVER is qualified per AEC-Q100 Grade 2, supporting continuous operation from −40°C to +105°C ambient temperature. This rating is validated across all electrical parameters in the device's Electrical Characteristics appendix (Table A-17), making it suitable for under-hood automotive environments where thermal stress is critical.

Does the MC9S12DG128MPVER support CAN FD?

No, the MC9S12DG128MPVER does not support CAN FD. It implements two classic MSCAN modules compliant only with ISO 11898-1:2003 (CAN 2.0B), with fixed 1 Mbps maximum bit rate and no support for flexible data-rate or extended data length frames. For CAN FD, consider the S32K144 or later NXP families.

How is flash memory programmed on the MC9S12DG128MPVER?

Flash programming on the MC9S12DG128MPVER is performed via the Background Debug Mode (BDM) interface using standard Freescale/NXP BDM tools (e.g., Cyclone Pro, PEMicro). The device supports in-system programming through the BKGD pin, with row programming (not burst) and built-in security byte protection to prevent unauthorized access.

What oscillator configurations are supported by the MC9S12DG128MPVER?

The MC9S12DG128MPVER supports three oscillator modes: Colpitts (using external crystal and capacitors), Pierce (crystal with internal feedback), and external clock input. Configuration is controlled by the PE7/XCLKS pin state and CRG register settings, as detailed in Section 8 of the Device User Guide (V02.17).

Is the MC9S12DG128MPVER pin-compatible with other HCS12 derivatives like the MC9S12DT128?

Yes, the MC9S12DG128MPVER shares identical 112-pin LQFP pinout and signal mapping with MC9S12DT128, MC9S12DJ128, and MC9S12DB128 per Figure 2-1 of the Device User Guide. However, peripheral availability differs - e.g., MC9S12DG128 lacks Byteflight (BF) and BDLC modules present in DT/DJ variants.