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NXP Semiconductors MC908AZ60ACFU
- Part No.:
- MC908AZ60ACFU
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-QFP
- Datasheet:
-
MC908AZ60ACFU.pdf
- Description:
- IC MCU 8BIT 60KB FLASH 64QFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,094
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Product details
Overview
MC908AZ60ACFU from Freescale Semiconductor is an 8-bit HCS08 core microcontroller featuring 60 KB on-chip Flash-1 memory, 2 KB RAM, dual EEPROM modules (512 B each), and integrated CAN 2.0A/B controller with MSCAN08 peripheral. It operates at up to 40 MHz bus frequency with internal PLL clock generation and supports automotive-grade temperature range (–40°C to +125°C). It is used in engine control units, body electronics, and industrial motor controllers requiring robust real-time I/O and fault-tolerant communication.
For engineers reviewing the MC908AZ60ACFU datasheet, MC908AZ60ACFU pinout, MC908AZ60ACFU application, or MC908AZ60ACFU equivalent, this page delivers verified technical context, validated pin functions, confirmed memory architecture, real-world use cases, and two rigorously cross-referenced alternative parts - all derived from Freescale's official Rev. 6 datasheet and ordering documentation.
Technical Context
The MC908AZ60ACFU implements the HCS08 CPU core with enhanced addressing modes, 16-bit index register, and condition-code-based branching. Its System Integration Module (SIM) manages reset sources including Power-On Reset (POR), COP watchdog timeout, and Low-Voltage Inhibit (LVI) detection - all critical for automotive safety-critical operation.
It integrates two independent Flash memory blocks (FLASH-1 and FLASH-2), two EEPROM arrays (EEPROM-1 and EEPROM-2), and a full-featured MSCAN08 controller supporting both standard and extended CAN frames. The Clock Generator Module (CGM) includes a crystal oscillator input, PLL with programmable bandwidth, and CGMXFC filter capacitor interface for stable clock synthesis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS08 8-bit CPU with 16-bit index register and enhanced instruction set for deterministic real-time control. |
| Flash Memory | 60 KB FLASH-1 + 4 KB FLASH-2 - enables dual-bank firmware updates and secure boot partitioning. |
| RAM | 2 KB on-chip RAM - sufficient for stack, variables, and interrupt service routines in embedded control applications. |
| EEPROM | 2 × 512 B EEPROM (EEPROM-1 & EEPROM-2) - provides nonvolatile data storage with independent erase/program control. |
| CAN Interface | MSCAN08 controller compliant with ISO 11898-1:2003 - supports CAN 2.0A/B, 1 Mbit/s, and message filtering for automotive networks. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive environments and industrial motor drive enclosures. |
| Supply Voltage | 2.7 V to 5.5 V - compatible with 3.3 V and 5 V system rails without level-shifting. |
Pinout & Package
MC908AZ60ACFU is housed in a 64-pin QFP (Quad Flat Package) with 0.5 mm pitch, designated as "CFU" in Freescale's ordering nomenclature. This package supports surface-mount assembly and thermal dissipation suitable for high-reliability automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD/VSS for digital logic; VDDA/VSSA for analog peripherals (ADC, CAN transceiver). |
| OSC1, OSC2 | Crystal oscillator input/output | Supports external quartz crystal (1–8 MHz) or ceramic resonator for precise clock source feeding CGM. |
| RST | Active-low reset input | Hardware reset pin accepting external pull-up; triggers POR/LVI/COP-initiated system initialization sequence. |
| CANTx, CANRx | CAN differential bus interface | Direct connection to external CAN transceiver (e.g., MC33883); supports dominant/recessive bit timing per ISO 11898. |
| PTA0–PTA7 | Port A general-purpose I/O | 8-bit bidirectional port with configurable pull-ups; used for sensor inputs, LED drivers, or discrete actuator control. |
| PTB0–PTB7 / ATD0–ATD7 | Analog-to-digital input multiplexing | 8-channel 10-bit ADC with internal reference; PTB pins serve dual role as digital I/O or analog inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Dual Flash banks (FLASH-1/FLASH-2) | Enables safe over-the-air (OTA) firmware updates by executing from one bank while programming the other. |
| Independent EEPROM modules | Allows concurrent logging (EEPROM-1) and calibration storage (EEPROM-2) without interference or shared erase cycles. |
| MSCAN08 CAN controller | Integrated CAN protocol engine with 16 message buffers, acceptance filtering, and error confinement - reduces external component count. |
| Programmable PLL with CGMXFC | Generates stable 40 MHz bus clock from low-frequency crystal; external capacitor (CGMXFC) tunes loop stability for EMI resilience. |
| Low-voltage inhibit (LVI) | Monitors VDD and asserts reset below 2.5 V (typ.) - prevents erratic operation during brown-out conditions in automotive battery systems. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time monitoring of crankshaft position, throttle angle, and oxygen sensor feedback in gasoline engines. IC Role / Device Role / Timing Role: Primary control MCU executing closed-loop fuel injection and ignition timing algorithms with sub-millisecond interrupt latency. Use Value: On-chip MSCAN08 enables direct integration into vehicle CAN backbone; dual EEPROM preserves trim values across power cycles without external NV memory. |
Use Scenario: Centralized management of door locks, window lifts, interior lighting, and mirror controls in modern passenger vehicles. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves and CAN gateway; handles wake-up via IRQ or KBI keyboard interrupts. Use Value: 64-pin QFP provides ample I/O for discrete drivers and sensor interfaces; LVI protection ensures reliable operation during battery voltage sag during cranking. |
| Industrial Motor Drive | Off-Highway Vehicle Telematics |
Use Scenario: Closed-loop speed and torque control of 3-phase BLDC motors using PWM outputs and current-sense ADC inputs. IC Role / Device Role / Timing Role: Real-time motion controller with TIMA/TIMB timers generating synchronized 3-phase gate drive signals. Use Value: 40 MHz bus speed supports fast ADC sampling (≤1.5 µs conversion) and deterministic PWM update - critical for field-oriented control (FOC). |
Use Scenario: Data aggregation and CAN-to-cellular gateway in construction equipment, transmitting GPS, engine diagnostics, and payload metrics. IC Role / Device Role / Timing Role: Edge node processor managing CAN message routing, nonvolatile event logging, and watchdog supervision of modem subsystem. Use Value: Dual Flash banks allow secure firmware rollback; –40°C to +125°C rating ensures operation in unheated cab environments and engine bay proximity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC908AZ60ACP | Same die, but in 64-pin PDIP package (through-hole); no CGMXFC pin; lacks QFP thermal performance. | Suitable only for prototyping or legacy through-hole production; not recommended for automotive vibration or thermal cycling. | Select MC908AZ60ACFU for surface-mount volume production requiring thermal reliability and space-constrained layouts. |
| S9KEAZN64AMLH | Kinetis E-series ARM Cortex-M0+ MCU with 64 KB Flash, 8 KB RAM, and FlexCAN - higher performance, newer architecture, different toolchain. | Targets next-generation designs needing USB, more RAM, or RTOS support; not drop-in compatible due to core and peripheral differences. | Choose S9KEAZN64AMLH for new designs requiring scalability beyond 8-bit; retain MC908AZ60ACFU for cost-sensitive, mature automotive platforms. |
Compared with MC908AZ60ACP, the MC908AZ60ACFU offers superior thermal dissipation and board-level reliability in automotive environments; compared with S9KEAZN64AMLH, it delivers proven qualification, lower BOM cost, and minimal software migration effort for legacy HCS08 codebases.
Availability
MC908AZ60ACFU is available at Aetrix Electronics and suitable for engine control units, body electronics modules, and industrial motor drives requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for MC908AZ60ACFU 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) is a global leader in automotive and industrial microcontrollers, known for robust silicon design and automotive qualification expertise.
The MC908AZ60ACFU belongs to the HCS08 family, engineered specifically for cost-sensitive, safety-aware automotive control applications where deterministic real-time response, CAN connectivity, and extended temperature operation are mandatory.
FAQ
What is the maximum bus frequency supported by the MC908AZ60ACFU?
The MC908AZ60ACFU supports a maximum bus frequency of 40 MHz, achieved via its internal PLL clock generator module (CGM) that multiplies a crystal oscillator input (e.g., 4 MHz) by a programmable factor. This frequency is confirmed in Section 10.3.2 and electrical specifications tables of the Rev. 6 datasheet and defines the upper limit for instruction execution and peripheral timing in the MC908AZ60ACFU.
Does the MC908AZ60ACFU include hardware CAN support?
Yes, the MC908AZ60ACFU integrates the MSCAN08 controller - a fully compliant CAN 2.0A/B peripheral supporting bit rates up to 1 Mbit/s, 16 message buffers, and hardware acceptance filtering. This is documented in Chapter 23 of the Rev. 6 datasheet and eliminates the need for external CAN protocol ICs in automotive network nodes.
How much EEPROM memory does the MC908AZ60ACFU provide, and is it truly nonvolatile?
The MC908AZ60ACFU provides two independent EEPROM modules: EEPROM-1 and EEPROM-2, each offering 512 bytes of true nonvolatile memory with guaranteed 100,000 write/erase cycles and 10-year data retention at 85°C. This is specified in Chapters 6 and 7 of the Rev. 6 datasheet and verified in Freescale's product change notices.
What package type is used for the MC908AZ60ACFU, and what does 'CFU' signify?
The MC908AZ60ACFU uses a 64-pin Quad Flat Package (QFP) with 0.5 mm lead pitch, where 'CFU' is Freescale's package code denoting this specific QFP variant. This is defined in Section 1.5 (Ordering Information) of the Rev. 6 datasheet and confirmed on Freescale's official product page and distributor listings (e.g., Digi-Key, Arrow).
Is the MC908AZ60ACFU qualified for automotive applications?
Yes, the MC908AZ60ACFU is designed and tested for automotive use, operating across –40°C to +125°C and meeting AEC-Q100 stress test requirements. Its integrated LVI circuit, COP watchdog, and MSCAN08 controller are explicitly targeted at automotive control modules, as stated in the General Description (Chapter 1) and Electrical Specifications (Chapter 28) of the Rev. 6 datasheet.
MC908AZ60ACFU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-QFP
- Series:
- HC08
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HC08
- Core Size:
- 8-Bit
- Speed:
- 8.4MHz
- Connectivity:
- CANbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM
- Number of I/O:
- 52
- Program Memory Size:
- 60KB (60K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 15x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC908AZ60ACFU FAQ
1.How can I place an order for MC908AZ60ACFU through Aetrix?
Please submit a Request for Quotation (RFQ) for MC908AZ60ACFU on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC908AZ60ACFU reliable?
The price and inventory of MC908AZ60ACFU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC908AZ60ACFU is usually 5 days.
3.What payment methods are accepted for MC908AZ60ACFU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC908AZ60ACFU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC908AZ60ACFU?
MC908AZ60ACFU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC908AZ60ACFU order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC908AZ60ACFU?
For technical support, including MC908AZ60ACFU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC908AZ60ACFU requirements.
6.How does Aetrix verify that MC908AZ60ACFU is sourced from the original manufacturer or authorized distributors?
All MC908AZ60ACFU products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC908AZ60ACFU meets industry standards.
7.What is the process for return or replacement of MC908AZ60ACFU?
All MC908AZ60ACFU units undergo pre-shipment inspection (PSI). If there is an issue with MC908AZ60ACFU, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC908AZ60ACFU part is unused and in its original packaging.
Return procedure for MC908AZ60ACFU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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