NXP Semiconductors MC908GZ32CFUE

Overview

MC908GZ32CFUE from Freescale Semiconductor is an 8-bit HCS08 microcontroller featuring 32 KB on-chip Flash memory, 1 KB RAM, a 10-bit ADC with up to 24 input channels, integrated MSCAN08 CAN controller, and dual TIM modules for precision timing control. It operates at up to 40 MHz bus frequency using an internal PLL clock generator and supports LIN communication via its ESCI module - ideal for automotive body electronics and industrial sensor nodes.

For engineers reviewing the MC908GZ32CFUE datasheet, MC908GZ32CFUE pinout, MC908GZ32CFUE application, or MC908GZ32CFUE equivalent, this page delivers verified technical context, package mapping, real-world use cases, and validated alternative options - all grounded in Freescale's Rev. 6.0 data sheet and official ordering information.

Technical Context

The MC908GZ32CFUE implements the HCS08 CPU core with enhanced addressing modes and low-power STOP/WAIT modes. Its Clock Generator Module (CGM) integrates a crystal oscillator, PLL with programmable multiplier (×1–×32), and VCO range selection - enabling stable 40 MHz operation from a 4 MHz crystal.

It includes two independent timer interface modules (TIM1 and TIM2), each supporting input capture, output compare, PWM generation, and timer linking; plus an MSCAN08 controller compliant with ISO 11898-1 (CAN 2.0A/B), ESCI for LIN/UART, SPI, and a 24-channel 10-bit ADC with configurable sample-and-hold and result justification.

Key Specifications

Pinout & Package

MC908GZ32CFUE is housed in a 64-pin QFP (Quad Flat Package) with 10 mm × 10 mm body and 0.5 mm pitch. Pin assignments follow Freescale's standardized GZ-series layout, including dedicated CAN TX/RX pins, ADC reference and analog supply pins, and multi-function I/O ports A–G.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC908GZ48CFUE, the MC908GZ32CFUE offers identical peripherals and pinout but reduced Flash capacity - suitable for cost-sensitive, fixed-function implementations. Against S9KEAZ128AMLH, it trades ARM architecture advantages for proven HCS08 reliability and minimal migration effort in established automotive platforms.

Availability

MC908GZ32CFUE is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart actuators, and home appliance motor control requiring stable component supply and long-term production continuity.

Supply support for MC908GZ32CFUE 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 and industrial microcontrollers with robust analog integration, CAN connectivity, and long-lifecycle support.

The MC908GZ32CFUE belongs to the HCS08 GZ-family, designed specifically for cost-effective, real-time control in automotive body electronics and industrial automation where CAN, ADC, and deterministic timing are essential.

FAQ

What is the maximum operating frequency of the MC908GZ32CFUE?

The MC908GZ32CFUE achieves a maximum bus frequency of 40 MHz using its integrated PLL clock generator. This is derived from a 4 MHz crystal oscillator multiplied by ×10, with full support for other multipliers (×1–×32) depending on VCO range and filter capacitor selection per Freescale's CGM design guidelines in the Rev. 6.0 data sheet.

Does the MC908GZ32CFUE support CAN FD?

No, the MC908GZ32CFUE integrates the MSCAN08 controller, which complies strictly with ISO 11898-1 (Classical CAN 2.0A/B) and does not support CAN FD features such as flexible data-rate or extended payload. For CAN FD, consider NXP's S32K or Kinetis E-series alternatives like the S9KEAZ128AMLH referenced in the Equivalent & Alternatives section.

How many ADC channels does the MC908GZ32CFUE support?

The MC908GZ32CFUE supports up to 24 analog input channels mapped across Ports A, B, and G - with 16 selectable channels accessible via the ADC configuration registers. Channel selection, sample time, and justification mode are fully software-configurable, enabling flexible sensor interfacing in mixed-signal applications.

Is the MC908GZ32CFUE pin-compatible with other GZ-series MCUs?

Yes, the MC908GZ32CFUE shares the same 64-pin QFP package and pin assignment with MC908GZ48CFUE and MC908GZ60CFUE. All three devices maintain identical peripheral pin mappings (e.g., CANTX on PTC0, RxD/TxD on PTE1/PTE0), allowing hardware reuse across Flash-size variants within the same family.

What debug interfaces are supported by the MC908GZ32CFUE?

The MC908GZ32CFUE supports background debug mode (BDM) via a single-wire interface using the BKGD pin (shared with PTA0). This enables non-intrusive debugging, flash programming, and real-time register inspection without halting the CPU - consistent with Freescale's HCS08 BDM specification and supported by standard tools like P&E Micro's Cyclone programmers.