NXP Semiconductors MC9S12DB128VPVE

Overview

MC9S12DB128VPVE from NXP (formerly Freescale) is a 16-bit automotive microcontroller featuring 128KB Flash EEPROM, 8KB RAM, 2KB EEPROM, dual 10-bit ADCs (16-channel total), eight PWM channels, five CAN 2.0A/B modules, and J1850 BDLC interface - deployed in vehicle body control modules for centralized lighting, door lock, and window lift coordination.

For engineers reviewing the MC9S12DB128VPVE datasheet, MC9S12DB128VPVE pinout, MC9S12DB128VPVE application, or MC9S12DB128VPVE equivalent, key selection criteria include CAN module count (2), 112-pin LQFP package compatibility, 50 MHz CPU clock capability, and integrated background debug (BDM) support for production programming and field diagnostics.

Technical Context

The MC9S12DB128VPVE implements the CPU12 core with M68HC11 instruction set compatibility, 7-bit prescaler ECT timer, and PLL-based clock generation enabling 25 MHz bus speed at 50 MHz CPU frequency. Its SIM module manages interrupt routing, external bus interfacing (16/8-bit multiplexed mode), and reset/clock monitoring.

It integrates two 10-bit ADC modules (16 total inputs), five CAN controllers (CAN0–CAN4), and software-routable peripheral pins - including CAN0/CAN4 shared with IIC and J1850 pins - all operating under automotive-grade temperature range (−40°C to +125°C) with 5V-tolerant I/O and internal 5V-to-2.5V regulator.

Key Specifications

Pinout & Package

MC9S12DB128VPVE uses a 112-pin LQFP package (case no. 987) with 0.4 mm lead pitch, 20 mm × 20 mm body, and 1.4–1.6 mm height. I/O pins support 5V input tolerance and 5V A/D reference; logic operates at 2.5V internally via integrated regulator.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S12DB128VPVE, MC9S12DG128CPVE removes J1850 but retains identical CAN/ADC/PWM resources, while S912XDP512J0VLQ offers scalable memory and XGATE acceleration - both require PCB-level validation due to functional differences despite shared 112-pin LQFP footprint.

Availability

MC9S12DB128VPVE is available at Aetrix Electronics and suitable for automotive body electronics, door control units, and roof modules requiring stable component supply across extended lifecycle programs.

Supply support for MC9S12DB128VPVE 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.

The MC9S12D-Family was designed specifically for automotive multiplexing applications, emphasizing CAN network integration, robust diagnostics (J1850), and scalable memory/peripheral configurations for body electronics.

FAQ

What is the maximum bus speed supported by the MC9S12DB128VPVE?

The MC9S12DB128VPVE supports a maximum bus speed of 25 MHz, achieved via its internal PLL when operating at 50 MHz CPU frequency in single-chip mode. This enables deterministic timing for CAN communication, ADC sampling, and PWM generation within automotive body control applications. The MC9S12DB128VPVE maintains this speed across its full −40°C to +125°C operating range with appropriate decoupling and clock source stability.

Does the MC9S12DB128VPVE support J1850 VPW diagnostics?

Yes, the MC9S12DB128VPVE integrates a fully compliant SAE J1850 Variable Pulse Width (VPW) interface (BDLC module) supporting 10.4 kbps operation, byte-level transmit/receive, and 4x receive mode. This allows direct connection to GM Class 2 diagnostic tools without external transceivers. The MC9S12DB128VPVE implements all required timing and protocol layers per SAE J1850 standard.

How many CAN modules are implemented in the MC9S12DB128VPVE?

The MC9S12DB128VPVE implements two CAN 2.0A/B software-compatible modules: CAN0 and CAN4. Each provides five receive buffers and three transmit buffers, flexible identifier filtering (2×32-bit, 4×16-bit, or 8×8-bit), and dedicated interrupt channels for RX, TX, error, and wake-up events. The MC9S12DB128VPVE routes CAN0 to PM0/PM1 and CAN4 to PJ6/PJ7, with software reassignment options.

What package type and pin count does the MC9S12DB128VPVE use?

The MC9S12DB128VPVE uses a 112-pin LQFP package (case no. 987) with 20 mm × 20 mm body size and 0.4 mm lead pitch. It features 5V-tolerant I/O, separate analog power (VDDA/VSSA), and internal 5V-to-2.5V regulation. The MC9S12DB128VPVE pinout includes dedicated CAN, SCI, SPI, PWM, ADC, and BDM signals mapped across Ports A, B, E, H, J, K, M, P, S, T, and PAD.

Is the MC9S12DB128VPVE pin-compatible with other MC9S12D-Family members?

Yes, the MC9S12DB128VPVE is fully pin-compatible with all 112-pin LQFP variants in the MC9S12D-Family (e.g., MC9S12DT128, MC9S12DG128). Peripheral pin assignments, power/ground locations, and debug interface (BKGD) are identical. However, feature availability (e.g., J1850, number of CAN modules, ADC channels) varies by part number - the MC9S12DB128VPVE specifically includes J1850 BDLC and two CAN modules.