NXP Semiconductors MC908AZ60ACFUER

Overview

MC908AZ60ACFUER from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller featuring 60 KB on-chip Flash-1 memory, 2 KB RAM, and integrated CAN 2.0A/B controller with MSCAN module. It operates at up to 40 MHz bus frequency using a PLL-based clock generator, supports 5V operation, and includes 8-channel 10-bit ADC, SPI, SCI, and programmable timers - deployed in automotive body control modules and industrial sensor nodes.

For engineers reviewing the MC908AZ60ACFUER datasheet, MC908AZ60ACFUER pinout, MC908AZ60ACFUER application, or MC908AZ60ACFUER equivalent, key selection criteria include its dual Flash/EEPROM architecture (FLASH-1 + FLASH-2), dedicated MSCAN peripheral with message buffering, low-voltage inhibit (LVI) reset threshold of 3.8 V, and 64-pin LQFP package with 52 I/O pins including analog inputs and CAN transceiver pins.

Technical Context

The MC908AZ60ACFUER implements the HCS08 CPU core with enhanced addressing modes and a 16-bit index register, executing instructions at up to 20 MIPS. Its System Integration Module (SIM) manages reset sources including Power-On Reset (POR), COP watchdog timeout, and Low-Voltage Inhibit (LVI) with hysteresis.

Memory subsystem includes two independent Flash blocks (FLASH-1: 60 KB, FLASH-2: 4 KB), two EEPROM arrays (EEPROM-1: 512 B, EEPROM-2: 256 B), and RAM mapped at $0080–$087F. The Clock Generator Module (CGM) integrates a crystal oscillator, PLL with programmable bandwidth, and base clock selector for flexible clock tree configuration.

Key Specifications

Pinout & Package

MC908AZ60ACFUER is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per Rev. 6 datasheet Section 1.4 "Pin Assignments".

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08DZ60CLC, MC908AZ60ACFUER delivers deterministic CAN response via MSCAN hardware acceleration and supports legacy 5 V automotive infrastructure; versus S9KEAZN64AMLH, it offers proven qualification for harsh environments and lower BOM cost where ARM features are unnecessary.

Availability

MC908AZ60ACFUER is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control panels, and smart lighting nodes requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC908AZ60ACFUER 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 MC908AZ60ACFUER belongs to the HCS08 family - designed specifically for cost-sensitive, real-time automotive and industrial control applications demanding robustness, CAN integration, and long-term supply stability.

FAQ

What is the maximum bus frequency supported by the MC908AZ60ACFUER?

The MC908AZ60ACFUER supports a maximum bus frequency of 40 MHz, achieved via its integrated Phase-Locked Loop (PLL) clock generator. This frequency is derived from a 4–8 MHz crystal input and is confirmed in Section 10.3.2 of the Rev. 6 datasheet. The PLL allows precise frequency synthesis while maintaining low jitter for timing-critical peripherals like MSCAN and ADC sampling.

Does the MC908AZ60ACFUER include hardware CAN support?

Yes, the MC908AZ60ACFUER integrates the MSCAN08 module - a full-featured, hardware-accelerated CAN 2.0A/B controller. It includes 32 message buffers, hardware ID acceptance filtering, automatic retransmission, and error confinement logic. Unlike basic CAN peripherals, MSCAN08 offloads protocol handling from the CPU, enabling deterministic response in high-traffic networks.

What are the Flash memory organization and programming capabilities of the MC908AZ60ACFUER?

The MC908AZ60ACFUER features two independent Flash blocks: 60 KB FLASH-1 and 4 KB FLASH-2. Both support page erase (512 B), mass erase, and block protection via dedicated control registers. Programming is performed in-system via background debug mode (BDM) or user firmware using the Flash command sequence defined in Chapters 4 and 5 of the datasheet.

How does the MC908AZ60ACFUER handle low-voltage conditions?

The MC908AZ60ACFUER incorporates an on-chip Low-Voltage Inhibit (LVI) circuit that asserts a reset when VDD falls below 3.8 V ±0.1 V, with 100 mV hysteresis. This function is enabled by default and requires no external components. The LVI reset ensures reliable operation during brown-out events and eliminates the need for discrete voltage supervisors in 5 V automotive systems.

Is the MC908AZ60ACFUER pin-compatible with other members of the HCS08 AZ60 family?

Yes, the MC908AZ60ACFUER shares identical pinout and package (64-pin LQFP) with MC68HC908AZ60A and MC68HC908AZ60E variants. Differences lie in mask ROM content, Flash configuration defaults, and qualification grade - not physical layout. This enables direct PCB reuse across design revisions targeting different temperature or reliability requirements.