NXP Semiconductors MC9S12DG128VPV

Overview

MC9S12DG128VPV 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. It targets automotive body control modules requiring robust real-time control and CAN network integration.

For engineers reviewing the MC9S12DG128VPV datasheet, MC9S12DG128VPV pinout, MC9S12DG128VPV application, or MC9S12DG128VPV equivalent, key selection criteria include its 112-pin LQFP package, 5 V tolerant I/O, 128 KB Flash with 2 KB EEPROM emulation, dual CAN interface routing (CAN0/CAN4), and background debug module (BDM) support for in-circuit development.

Technical Context

The MC9S12DG128VPV 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 a PLL with selectable multiplication factors (1×–32×) and supports external crystal (1–8 MHz), ceramic resonator, or external clock input.

It integrates multiple peripheral modules including two MSCAN controllers (CAN0 and CAN4), 16-channel 10-bit ATD, 8-channel PWM, SPI, SCI, IIC, and Byteflight (BF) interface - all mapped via the Module Mapping Control (MMC) register. Memory protection is enforced through security byte and flash block locking.

Key Specifications

Pinout & Package

MC9S12DG128VPV is housed in a 112-pin Low-Profile Quad Flat Package (LQFP) with exposed thermal pad, designed for automotive-grade thermal performance and PCB layout compatibility with Freescale's recommended oscillator and decoupling guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S12DG128VPV, MC9S12DJ128CPV reduces system complexity where BF and dual CAN are unused, while S912XDP512J0VLH provides architectural headroom for advanced signal processing and CAN FD - neither is pin-compatible, but both serve adjacent automotive control tiers.

Availability

MC9S12DG128VPV is available at Aetrix Electronics and suitable for automotive body control modules, instrument clusters, gateway nodes, and engine subsystems requiring stable component supply across extended temperature ranges (−40°C to +125°C).

Supply support for MC9S12DG128VPV 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 applications.

The MC9S12DG128VPV belongs to the legacy HCS12 family, engineered specifically for cost-sensitive, high-reliability automotive control applications with stringent ASIL-B readiness and long-term supply assurance.

FAQ

What is the maximum operating frequency of the MC9S12DG128VPV?

The MC9S12DG128VPV supports a maximum bus frequency of 25 MHz, achieved via its on-chip Phase-Locked Loop (PLL) with programmable multiplication factor (1×–32×) and external crystal input (1–8 MHz). This frequency governs instruction execution, peripheral timing, and CAN bit rates. The MC9S12DG128VPV maintains timing integrity across −40°C to +125°C ambient conditions per its automotive qualification.

Does the MC9S12DG128VPV support CAN FD?

No, the MC9S12DG128VPV does not support CAN FD. It integrates two legacy MSCAN 2.0B controllers compliant with ISO 11898-1, supporting classic CAN with up to 1 Mbit/s baud rate and 11-/29-bit identifiers. CAN FD capability was introduced in later families such as S12X and S32K. For MC9S12DG128VPV designs, CAN FD migration requires hardware replacement with an S32K144 or equivalent.

How is flash memory secured on the MC9S12DG128VPV?

Flash security on the MC9S12DG128VPV is implemented via a 16-byte backdoor key and a dedicated security byte stored in protected Flash memory. When enabled, unauthorized read attempts trigger a mass erase. Access requires correct key entry via BDM or specific boot-mode sequences. The MC9S12DG128VPV also supports block-level protection bits to prevent accidental writes to critical firmware sections during field updates.

What oscillator configurations does the MC9S12DG128VPV support?

The MC9S12DG128VPV supports three oscillator modes: Colpitts (crystal/resonator with internal capacitors), Pierce (external capacitors required), and external clock input. Mode selection is controlled by the PE7 pin state at reset. All configurations feed the CRG module, which generates the base clock for PLL multiplication. The MC9S12DG128VPV specifies startup times of ≤10 ms for crystals and ≤100 µs for external clocks.

Is the MC9S12DG128VPV pin-compatible with other HCS12 derivatives like MC9S12DT128?

Yes, the MC9S12DG128VPV shares identical pinout and electrical characteristics with MC9S12DT128 in the 112-pin LQFP package, as confirmed in Figure 2-1 of the Device User Guide. Both devices use the same signal mapping, power pin allocation, and peripheral multiplexing. However, functional differences exist - e.g., MC9S12DG128VPV includes Byteflight and dual CAN, while MC9S12DT128 may omit certain modules depending on mask set - so firmware and peripheral initialization must be validated per device variant.