NXP Semiconductors MC9S12DT128CPV

Overview

MC9S12DT128CPV from Freescale Semiconductor is a 16-bit HCS12 microcontroller featuring 128 KB on-chip Flash EEPROM, 8 KB RAM, dual 10-bit 8-channel ADCs (ATD0/ATD1), 8-channel PWM, 2x SCI, 2x SPI, I²C, and MSCAN. It operates at up to 25 MHz bus clock via internal PLL, supports multiple low-power modes (Stop, Wait, Pseudo-Stop), and targets automotive body control modules requiring robust real-time control and CAN communication.

For engineers reviewing the MC9S12DT128CPV datasheet, MC9S12DT128CPV pinout, MC9S12DT128CPV application, or MC9S12DT128CPV equivalent, this page delivers verified technical context, package-specific pin mapping, functional alternatives, and design-critical electrical parameters-including VDD operating range (4.5–5.5 V), ATD accuracy (±2 LSB INL), PLL jitter (<1.5 ns RMS), and MSCAN compliance with ISO 11898-1.

Technical Context

The MC9S12DT128CPV implements the HCS12 CPU core with 16-bit data path, 24-bit address space, and background debug mode (BDM) via BKGD pin. Its Clock and Reset Generator (CRG) block supports crystal (4–8 MHz), external clock, or Pierce oscillator input, with programmable PLL multiplication (×1 to ×32) to generate stable bus clocks up to 25 MHz.

Memory subsystem includes 128 KB Flash (with 2 KB EEPROM emulation), 8 KB SRAM, and memory protection via security byte. Peripheral integration covers two independent MSCAN controllers (CAN0/CAN1), dual ATD converters with simultaneous sampling capability, and flexible port routing via Port Integration Module (PIM) for signal multiplexing and interrupt prioritization.

Key Specifications

Pinout & Package

MC9S12DT128CPV is housed in an 80-pin QFP (Quad Flat Package) with 0.65 mm pitch, thermally enhanced for industrial and automotive PCB layouts. Pin assignments follow Freescale's standardized 80QFP bondout for DT/DG/DJ/DB derivatives.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.

Compared with MC9S12DG128CPV, the MC9S12DT128CPV provides redundant CAN capability critical for fail-operational systems; versus S912XDP512J0VLH, it offers proven qualification and lower system cost at the expense of scalability and processing headroom.

Availability

MC9S12DT128CPV is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, and commercial vehicle telematics requiring stable component supply across extended product lifecycles.

Supply support for MC9S12DT128CPV 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-grade microcontrollers with robust qualification, integrated analog peripherals, and CAN ecosystem support.

The MC9S12DT128CPV belongs to the HCS12 family, designed specifically for cost-sensitive, real-time automotive control applications demanding high reliability, on-chip Flash flexibility, and CAN network integration.

FAQ

What is the maximum bus clock frequency supported by the MC9S12DT128CPV?

The MC9S12DT128CPV achieves a maximum bus clock frequency of 25 MHz using its internal PLL. This is derived from a 4–8 MHz crystal or external clock input multiplied by factors up to ×32. The PLL output stability and jitter (<1.5 ns RMS) meet automotive timing requirements for deterministic interrupt response and peripheral synchronization in the MC9S12DT128CPV.

Does the MC9S12DT128CPV include hardware security features?

Yes, the MC9S12DT128CPV implements flash security via a dedicated security byte that disables read access to program memory and prevents unauthorized debugging. Once secured, the device requires a mass erase to restore access-ensuring IP protection in production firmware. This mechanism is integral to the MC9S12DT128CPV's design for automotive ECUs where firmware integrity is mandatory.

How many CAN controllers does the MC9S12DT128CPV integrate?

The MC9S12DT128CPV integrates two fully independent MSCAN controllers (CAN0 and CAN1), both compliant with ISO 11898-1. Each supports 16 message buffers, programmable bit timing, error confinement, and wake-on-CAN functionality-enabling dual-network architectures such as separate powertrain and body domain networks in the MC9S12DT128CPV.

What ADC resolution and accuracy does the MC9S12DT128CPV provide?

The MC9S12DT128CPV features two 10-bit Analog-to-Digital Converters (ATD0 and ATD1), each with 8 input channels and ±2 LSB integral nonlinearity (INL) over temperature. Simultaneous sampling capability allows correlated measurements critical for motor control and sensor calibration in the MC9S12DT128CPV.

Is the MC9S12DT128CPV pin-compatible with other HCS12 derivatives in the same package?

Yes-the MC9S12DT128CPV shares identical 80-pin QFP pinout and signal mapping with MC9S12DG128CPV, MC9S12DJ128CPV, and MC9S12DB128CPV per Freescale's documented bondout. This enables direct substitution in existing designs where peripheral requirements align, though functional differences (e.g., missing CAN1 in DG variant) must be validated for the MC9S12DT128CPV use case.