NXP Semiconductors MC68F375BGMZP33

Overview

MC68F375BGMZP33 from Freescale Semiconductor is a 32-bit microcontroller unit (MCU) based on the CPU32 core, featuring 1 MB of 1T Flash memory, 32 KB SRAM, integrated TouCAN interface, QADC64 analog-to-digital converter with 64-channel queuing, and enhanced TPU3 timing unit. It operates at up to 33 MHz and targets automotive powertrain and chassis control systems requiring deterministic real-time response.

For engineers reviewing the MC68F375BGMZP33 datasheet, MC68F375BGMZP33 pinout, MC68F375BGMZP33 application, or MC68F375BGMZP33 equivalent, this page provides verified functional block integration, clock synthesizer configuration details, BDM debug support, SCIM2E system protection features, and validated CAN/TPU/QADC subsystem interoperability - all specific to the MC68F375BGMZP33 variant in 208-pin PQFP package.

Technical Context

The MC68F375BGMZP33 integrates the CPU32 32-bit CISC core with full M68000 family instruction compatibility and extended low-power stop (LPSTOP) execution modes. Its SCIM2E module provides PLL-based clock synthesis with loss-of-clock detection, limp-mode fallback, and programmable E-clock division (EDIV), enabling stable 33 MHz operation from crystal or external reference inputs.

Peripheral integration includes the TouCAN controller compliant with ISO 11898-1 (CAN 2.0B), QADC64 with hardware queue management and external trigger synchronization, and TPU3 supporting complex waveform generation, input capture, and PWM with 16-bit resolution and 100 ns timing granularity - all mapped into a unified 32-bit address space with dynamic bus sizing support.

Key Specifications

Pinout & Package

MC68F375BGMZP33 is housed in a 208-pin PQFP (Plastic Quad Flat Package) with 0.65 mm lead pitch and 28 mm × 28 mm body size. Pin functions are defined per the MC68F375 Reference Manual Rev. 25 June 2003, Section 2.2 (Pinout) and Section 4.10 (GPIO mapping).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC68F375BGMZP33, MC68332CAG16 requires external memory and peripheral ICs to match integrated functionality, increasing BOM cost and PCB area; S912XDP512J1MALR offers modern networking but sacrifices CPU32 binary compatibility and sub-microsecond timing control essential for powertrain actuation.

Availability

MC68F375BGMZP33 is available at Aetrix Electronics and suitable for automotive powertrain control, chassis electronics, and industrial motion control applications requiring stable component supply, long-term lifecycle support, and AEC-Q100 qualified silicon.

Supply support for MC68F375BGMZP33 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) was a leading designer of embedded processors and analog devices for automotive, industrial, and networking markets.

The MC68F375BGMZP33 belongs to the 68300 family of high-integration MCUs engineered specifically for automotive real-time control applications demanding deterministic timing, robust fault handling, and CAN-based vehicle networking.

FAQ

What is the maximum operating frequency of the MC68F375BGMZP33?

The MC68F375BGMZP33 supports a maximum E-clock frequency of 33 MHz, achieved via its SCIM2E clock synthesizer PLL when driven by a 4–8 MHz crystal on XTAL/EXTAL. This frequency determines instruction cycle timing, peripheral bus speeds, and ADC sampling rates - all critical for meeting hard real-time deadlines in engine control applications. The MC68F375BGMZP33 datasheet specifies timing margins under worst-case voltage and temperature conditions.

Does the MC68F375BGMZP33 include on-chip Flash memory, and what is its capacity?

Yes, the MC68F375BGMZP33 integrates 1 MB of 1T Flash memory (CMFI module), organized for in-application programming (IAP) and EEPROM emulation. This Flash supports sector erase and byte/word programming, enabling field firmware updates and parameter storage without external memory. The MC68F375BGMZP33 uses this Flash for boot code, control algorithms, and calibration tables in automotive ECU implementations.

How does the TouCAN module in the MC68F375BGMZP33 differ from standard CAN controllers?

The TouCAN module in the MC68F375BGMZP33 implements ISO 11898-1 (CAN 2.0B) with hardware message object management, automatic retransmission, and error confinement - reducing CPU intervention by offloading ID filtering, arbitration, and ACK handling. Unlike basic CAN peripherals, TouCAN supports 15 fully configurable message objects with individual acceptance masks and prioritized transmission, making it suitable for safety-critical automotive networks. The MC68F375BGMZP33 leverages this for UDS diagnostics and ECU-to-ECU coordination.

What debugging interfaces are supported by the MC68F375BGMZP33?

The MC68F375BGMZP33 supports Background Debug Mode (BDM) via the BKPT pin and serial interface, enabling non-intrusive breakpoints, register inspection, and flash programming without halting real-time peripheral operation. It includes on-chip breakpoint hardware, fault address register (FAR), and deterministic opcode tracking - features validated in the MC68F375BGMZP33 Reference Manual. This BDM implementation is compatible with standard Freescale BDM debug cables and CodeWarrior development tools.

Is the MC68F375BGMZP33 pin-compatible with other members of the 68300 family?

No, the MC68F375BGMZP33 is not pin-compatible with earlier 68300-series MCUs like the MC68332 due to its 208-pin PQFP package and integrated peripheral set (TouCAN, QADC64, TPU3). While it shares the CPU32 core architecture and instruction set with the MC68332, the MC68F375BGMZP33 requires a unique PCB layout. Migration from MC68332 demands board redesign to accommodate additional analog supply pins, CAN differential pairs, and multiplexed address/data bus signals.