NXP Semiconductors MC908AZ60AMFUER

Overview

MC908AZ60AMFUER from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller featuring 60 KB on-chip Flash memory, 2 KB RAM, and integrated CAN 2.0A/B controller. It operates at up to 40 MHz bus frequency with internal PLL clock generation, supports 5V operation, and includes 10-bit ADC, SPI, SCI, and programmable timers - deployed in automotive body control modules and industrial sensor nodes.

For engineers reviewing the MC908AZ60AMFUER datasheet, MC908AZ60AMFUER pinout, MC908AZ60AMFUER application, or MC908AZ60AMFUER equivalent, key selection criteria include CAN interface support, Flash endurance (100k erase/write cycles), EEPROM emulation capability, 5V tolerance for legacy automotive I/O, and qualification per AEC-Q100 Grade 2 (−40°C to +105°C).

Technical Context

The MC908AZ60AMFUER implements the HCS08 CPU core with enhanced addressing modes and a 16-bit index register. Its System Integration Module (SIM) manages reset sources including Power-On Reset (POR), Computer Operating Properly (COP) watchdog, and Low-Voltage Inhibit (LVI), ensuring robust fault recovery in automotive environments.

It integrates dual Flash blocks (FLASH-1 and FLASH-2) with independent block protection registers, enabling secure firmware updates and bootloader separation. The Clock Generator Module (CGM) combines crystal oscillator input with a configurable PLL to derive precise bus clocks from low-frequency crystals - critical for CAN timing accuracy and EMI reduction.

Key Specifications

Pinout & Package

MC908AZ60AMFUER is housed in a 64-pin QFP (Quad Flat Package) with 0.5 mm pitch, designated as MFUER per Freescale ordering nomenclature. The package supports surface-mount assembly and provides full I/O access including dedicated CAN Tx/Rx pins, analog reference inputs, and multiple port groups with interrupt-capable pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S9KEAZN64AMLH and MC9S12XDP512MALR, the MC908AZ60AMFUER delivers optimal balance of CAN integration, 5V I/O resilience, and proven AEC-Q100 reliability in cost-sensitive body electronics - without requiring PCB redesign or voltage translation.

Availability

MC908AZ60AMFUER is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor hubs, engine bay monitoring units, and smart HVAC actuators requiring stable component supply across extended product lifecycles.

Supply support for MC908AZ60AMFUER 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, with deep heritage in microcontroller innovation through its acquisition of Freescale.

The MC908AZ60AMFUER belongs to the HCS08 family - designed specifically for cost-effective, high-reliability automotive sub-systems where CAN communication, 5V robustness, and long-term supply stability are mandatory.

FAQ

What is the maximum operating frequency of the MC908AZ60AMFUER?

The MC908AZ60AMFUER supports a maximum bus frequency of 40 MHz, achieved via its internal Phase-Locked Loop (PLL) clock generator. This allows high-speed instruction execution while maintaining accurate CAN bit timing. The PLL accepts input from a 1–8 MHz crystal on OSC1/OSC2 and multiplies it to generate the required bus clock - all within the MC908AZ60AMFUER's specified voltage and temperature range.

Does the MC908AZ60AMFUER include hardware CAN support?

Yes, the MC908AZ60AMFUER integrates the MSCAN08 controller, which fully implements CAN 2.0A/B protocol with message buffering, acceptance filtering, and automatic retransmission. It requires an external CAN transceiver (e.g., TJA1040) connected to CANTx and CANRx pins. The MC908AZ60AMFUER handles all protocol-layer tasks, freeing the CPU for application logic.

How is EEPROM functionality implemented in the MC908AZ60AMFUER?

The MC908AZ60AMFUER does not contain physical EEPROM but provides EEPROM emulation using its FLASH-2 memory block. Firmware libraries (e.g., AN2295) manage wear leveling, atomic writes, and sector protection to deliver reliable nonvolatile storage for calibration data or configuration parameters - effectively emulating up to 2 KB of EEPROM within the MC908AZ60AMFUER's Flash architecture.

Is the MC908AZ60AMFUER qualified for automotive use?

Yes, the MC908AZ60AMFUER is AEC-Q100 qualified to Grade 2 (−40°C to +105°C), making it suitable for under-hood and chassis-mounted automotive applications. It includes built-in features essential for automotive reliability: Low-Voltage Inhibit (LVI), Computer Operating Properly (COP) watchdog, and robust reset supervision - all verified per MC908AZ60AMFUER's qualification test reports.

What debug interface does the MC908AZ60AMFUER support?

The MC908AZ60AMFUER supports Background Debug Mode (BDM) via a single-wire interface using the BKGD pin. This enables full in-circuit debugging - including breakpoint setting, register inspection, and flash programming - without halting real-time operation. BDM is supported by standard tools like P&E Micro's Multilink and CodeWarrior IDE for HCS08 development.