NXP Semiconductors MC9S12DT128VPVE

Overview

MC9S12DT128VPVE 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, designed for automotive body electronics and industrial control systems requiring deterministic real-time response, EEPROM emulation, and robust ESD immunity. It operates at up to 25 MHz bus frequency, supports background debug via single-wire BDM interface, and features dual 10-bit ATD converters with 16-channel multiplexing.

For engineers reviewing the MC9S12DT128VPVE datasheet, MC9S12DT128VPVE pinout, MC9S12DT128VPVE application, or MC9S12DT128VPVE equivalent, key selection criteria include its 112-pin LQFP package, 5V-tolerant I/O, PLL-based clock generation with external crystal or oscillator input, and support for secure flash programming with backdoor key access.

Technical Context

The MC9S12DT128VPVE implements the HCS12 CPU core with 16-bit data path, 24-bit address space, and instruction set backward-compatible with HC12. Its CRG block integrates a PLL with programmable multiplication factor (1–32×), enabling stable bus clocks from 1–25 MHz using a 1–8 MHz crystal or external clock source.

It includes a 16-channel Enhanced Capture Timer (ECT) with input capture, output compare, and PWM generation; two independent 10-bit ATD modules (ATD0 and ATD1) supporting simultaneous sampling and configurable conversion sequences; and an MSCAN module compliant with ISO 11898-1, supporting both standard and extended CAN identifiers.

Key Specifications

Pinout & Package

The MC9S12DT128VPVE is housed in a 112-pin LQFP (Leadless Quad Flat Package) with 0.4 mm pitch, RoHS-compliant lead-free finish (PVE suffix), and thermal pad for enhanced heat dissipation in automotive under-hood environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S12DT128VPVE, MC9S12DG128CPVE offers identical core functionality at lower cost without Byteflight, while S912XDP512J0VLH delivers scalable performance with XGATE acceleration and larger memory - enabling migration paths without PCB redesign.

Availability

MC9S12DT128VPVE is available at Aetrix Electronics and suitable for automotive body electronics, engine control units, industrial PLCs, and commercial HVAC systems requiring stable component supply across long production lifecycles.

Supply support for MC9S12DT128VPVE 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 applications, with deep heritage in microcontroller innovation through its acquisition of Freescale.

The MC9S12DT128VPVE belongs to the HCS12 family, engineered specifically for cost-sensitive, high-reliability automotive applications demanding CAN integration, functional safety readiness, and long-term manufacturability in harsh environments.

FAQ

What is the maximum operating frequency of the MC9S12DT128VPVE?

The MC9S12DT128VPVE supports a maximum bus frequency of 25 MHz, achieved via its on-chip Phase-Locked Loop (PLL) that multiplies an external 1–8 MHz crystal or clock source. This frequency governs instruction execution speed, peripheral timing, and real-time response - confirmed in Section A.5.3 of the Device User Guide. The MC9S12DT128VPVE's PLL allows flexible clock configuration while maintaining stability across temperature and voltage variations.

Does the MC9S12DT128VPVE support in-circuit debugging?

Yes, the MC9S12DT128VPVE supports in-circuit debugging via its Background Debug Mode (BDM) interface using the BKGD pin. This single-wire interface enables full read/write memory access, breakpoint setting, and real-time register inspection without halting the CPU during normal operation. The MC9S12DT128VPVE's BDM implementation includes sync and acknowledge handshaking for reliable communication, as documented in Section 6.5 of the Device User Guide.

What type of nonvolatile memory does the MC9S12DT128VPVE include?

The MC9S12DT128VPVE integrates 128 KB of on-chip Flash memory for program storage and 2 KB of dedicated EEPROM for data logging and parameter storage. The Flash supports row programming and 2-bit backdoor key security, while the EEPROM guarantees 100,000 write/erase cycles and >10-year data retention at 85°C. These specifications are verified in Sections 17 and 18 of the Device User Guide and Appendix A.3.

Is the MC9S12DT128VPVE qualified for automotive applications?

Yes, the MC9S12DT128VPVE is AEC-Q100 qualified for automotive use, with guaranteed operation from −40°C to +105°C ambient temperature and ±4 kV HBM ESD protection on all I/O pins. Its 112-pin LQFP package (PVE suffix) is lead-free and RoHS-compliant, meeting automotive manufacturing and reliability standards. These qualifications are explicitly stated in Revision History V02.10 and Table 0-1 of the Device User Guide.

How many analog-to-digital converter channels does the MC9S12DT128VPVE have?

The MC9S12DT128VPVE features two independent 10-bit Analog-to-Digital Converter (ATD) modules - ATD0 and ATD1 - each supporting up to 16 input channels for a total of 32 configurable analog inputs. Both modules support simultaneous sampling, configurable conversion sequences, and flexible trigger sources including software, timer, and external events. This capability is detailed in Section 10 and Appendix A.2 of the Device User Guide.