NXP Semiconductors MC908AZ60AVFUE

Overview

MC908AZ60AVFUE from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller featuring 60 KB on-chip Flash-1 memory, 2 KB RAM, and dual EEPROM modules (512 B EEPROM-1 + 512 B EEPROM-2). It integrates a PLL-based Clock Generator Module, MSCAN08 controller, 10-bit ADC with 16 channels, and supports CAN 2.0A/B protocol for automotive body electronics and industrial control applications.

For engineers reviewing the MC908AZ60AVFUE datasheet, MC908AZ60AVFUE pinout, MC908AZ60AVFUE application, or MC908AZ60AVFUE equivalent, key selection criteria include its dual EEPROM architecture for data logging redundancy, MSCAN08 compliance with ISO 11898-1, and 48-MHz bus clock capability via internal PLL - critical for real-time CAN node timing and firmware update resilience.

Technical Context

The MC908AZ60AVFUE implements the HCS08 CPU core with 16-bit index register, 16-bit stack pointer, and condition-code-based branching. Its System Integration Module (SIM) manages reset sources including Power-On Reset, COP watchdog timeout, and Low-Voltage Inhibit (LVI) at 2.7 V nominal.

It features two independent Flash memory blocks (FLASH-1 and FLASH-2), each with dedicated block protection registers and mass/page erase control. The integrated MSCAN08 controller supports programmable bit timing, message buffering, and automatic retransmission - all configured via dedicated CAN control/status registers without CPU intervention.

Key Specifications

Pinout & Package

MC908AZ60AVFUE is housed in a 64-pin QFP (Quad Flat Package) with 0.5 mm pitch, thermally enhanced for industrial ambient operation up to +105°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC908AZ60AVFUE, MC9S08DZ60 trades dual EEPROM for USB connectivity and simplified debug, while S9KEAZN64AMLH replaces HCS08 with ARM Cortex-M0+, offering CAN FD and larger RAM at the cost of legacy code compatibility and increased BOM complexity.

Availability

MC908AZ60AVFUE is available at Aetrix Electronics and suitable for automotive body electronics, industrial CAN nodes, engine bay sensor interfaces, and smart actuator controllers requiring stable component supply and long-term lifecycle support.

Supply support for MC908AZ60AVFUE 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 applications.

The MC908AZ60AVFUE belongs to the HCS08 microcontroller family designed specifically for cost-sensitive, high-reliability automotive body electronics and industrial control systems requiring CAN 2.0 compliance and robust nonvolatile data retention.

FAQ

What is the maximum bus clock frequency supported by the MC908AZ60AVFUE?

The MC908AZ60AVFUE achieves a maximum bus clock frequency of 48 MHz using its internal PLL, which multiplies an external 1–8 MHz crystal input. This frequency is confirmed in Section 10.3.2 and Electrical Specifications (Chapter 28) of the Rev. 6 datasheet. The PLL's acquisition time and stability are validated across temperature and voltage ranges, ensuring reliable operation in automotive environments where the MC908AZ60AVFUE is deployed.

Does the MC908AZ60AVFUE support CAN FD or only classical CAN?

The MC908AZ60AVFUE implements the MSCAN08 controller, which supports only Classical CAN (ISO 11898-1) up to 1 Mbit/s. It does not support CAN FD framing, data rate switching, or extended data length. This limitation is explicitly stated in Chapter 23 of the datasheet and confirmed by register-level functionality - the MC908AZ60AVFUE lacks CAN FD-specific control bits and buffer descriptors present in later Kinetis CAN FD peripherals.

How many independent EEPROM blocks does the MC908AZ60AVFUE have, and what are their sizes?

The MC908AZ60AVFUE contains two physically and logically independent EEPROM blocks: EEPROM-1 (512 bytes) and EEPROM-2 (512 bytes). Each has dedicated control registers (EE1CR/EE2CR), array configuration registers, and timebase dividers - enabling simultaneous or staggered write operations without interference. This dual-block structure is detailed in Chapters 6 and 7 of the Rev. 6 datasheet and provides redundancy for critical calibration or configuration data storage.

What low-power modes are available on the MC908AZ60AVFUE, and how do they affect peripheral operation?

The MC908AZ60AVFUE supports WAIT and STOP modes. In WAIT mode, the CPU halts but clocks remain active for peripherals like SCI, SPI, and TIM - allowing wake-up via interrupt. In STOP mode, all clocks stop except for the LVI and COP modules; only external reset, IRQ, or COP timeout can wake the device. These behaviors are defined in Sections 4.8, 5.8, 6.6, and 9.6 of the datasheet and verified in electrical testing across voltage/temperature corners.

Is the MC908AZ60AVFUE pin-compatible with other members of the MC68HC908AZ60 family?

Yes - the MC908AZ60AVFUE shares identical pinout and package (64-pin QFP) with MC68HC908AZ60A and MC68HC908AZ60E, as confirmed in Section 1.4 (Pin Assignments) and Appendix A of the Rev. 6 datasheet. Differences between these variants are limited to internal mask ROM content, Flash endurance specifications, and temperature grade - not pin function or layout. This allows direct substitution in existing PCB designs without modification.