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NXP Semiconductors MC908GZ16CFAE
- Part No.:
- MC908GZ16CFAE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MC908GZ16CFAE.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,297
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Product details
Overview
MC908GZ16CFAE from Freescale Semiconductor is an 8-bit M68HC08 microcontroller with 16 KB on-chip Flash memory, 512 B RAM, and integrated CAN 2.0A controller. It operates at up to 8 MHz bus frequency, supports 5 V operation, and includes 10-bit ADC (8 channels), SPI, ESCI, and KBI modules. It targets automotive body electronics and industrial control systems requiring robust serial communication and low-power operation.
For engineers reviewing the MC908GZ16CFAE datasheet, MC908GZ16CFAE pinout, MC908GZ16CFAE application, or MC908GZ16CFAE equivalent, key selection criteria include its integrated MSCAN08 module, Flash reprogrammability in-system, COP watchdog, and support for STOP/WAIT low-power modes - all critical for automotive ECU and embedded control designs.
Technical Context
The MC908GZ16CFAE implements the CPU08 core with 16-bit index register, 8-bit accumulator, and 16-bit program counter. Its Clock Generator Module (CGM) integrates a PLL for flexible clock synthesis from crystal or external source, enabling precise bus timing across temperature and voltage ranges.
The device embeds MSCAN08 - a full CAN 2.0A-compliant controller with three message buffers, programmable acceptance filtering, and automatic retransmission. It interfaces directly with external CAN transceivers via dedicated CANTX (PTC0) and CANRX (PTC1) pins, with no internal transceiver.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPU08 8-bit Harvard architecture with 16-bit addressing; enables deterministic interrupt latency and compact code footprint. |
| Flash Memory | 16 KB on-chip SuperFlash®; supports in-application programming (IAP) and block protection for firmware security. |
| RAM | 512 bytes; sufficient for real-time task stacks and CAN message buffering in small ECU applications. |
| ADC | 10-bit successive-approximation ADC with 8 input channels; 25 µs conversion time at 8 MHz bus clock. |
| CAN Interface | MSCAN08 module compliant with ISO 11898-1:2003 CAN 2.0A; supports 1 Mbit/s data rate and error confinement. |
| Operating Voltage | 4.5 V to 5.5 V; meets automotive battery supply requirements with built-in LVI (Low-Voltage Inhibit) reset. |
| Package | 64-pin QFP (Quad Flat Package); 10 mm × 10 mm body, 0.5 mm pitch - suitable for high-density automotive PCB layouts. |
Pinout & Package
MC908GZ16CFAE is housed in a 64-pin QFP package with exposed thermal pad (JEDEC MS-026). Pin assignments follow standard M68HC08 GZ-series layout, including dedicated CAN I/O, ADC analog inputs, and dual power/ground domains (VDD/VSS and VDDA/VSSA).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTC0 / CANTX | CAN Transmit Output | Open-drain output driving external CAN transceiver TXD line; requires pull-up for dominant state. |
| PTC1 / CANRX | CAN Receive Input | Schmitt-trigger input accepting differential CANH/CANL via external transceiver RXD; tolerant of ±12 V common-mode. |
| VDDA / VSSA | Analog Power/Ground | Isolated analog supply domain for ADC and CGM PLL; reduces digital noise coupling into sensitive analog circuits. |
| OSC1 / OSC2 | Crystal Oscillator Inputs | Connects to parallel-resonant quartz crystal (1–8 MHz); internal amplifier enables self-contained clock generation. |
| RST | Active-Low Reset Input | Asynchronous reset pin with internal pull-up; accepts external reset signals or manual reset button interface. |
Key Features
| Feature | Design Value |
|---|---|
| MSCAN08 Controller | Hardware-accelerated CAN 2.0A messaging with three independent message buffers and automatic ID filtering - reduces CPU load in multi-node networks. |
| In-System Programmable Flash | 16 KB SuperFlash® with page erase (512 B) and mass erase; enables field firmware updates without removing MCU from board. |
| Computer Operating Properly (COP) | Configurable watchdog timer with selectable timeout (0.5 ms to 1.6 s); prevents runaway code in safety-critical automotive functions. |
| Low-Power Modes | STOP mode draws ≤10 µA at 5 V; WAIT mode retains RAM and peripheral registers while halting CPU - ideal for intermittent sensor polling. |
| Integrated Peripherals | 10-bit ADC (8 ch), SPI, ESCI (UART-compatible), KBI (8-key matrix), TIM (2x 16-bit timers), TBM - eliminates need for external support ICs. |
Applications
| Automotive Door Module | Industrial Motor Control Panel |
|---|---|
Use Scenario: Centralized control of power windows, locks, mirrors, and interior lighting in vehicle door assemblies. IC Role / Device Role / Timing Role: Primary MCU executing CAN-based command arbitration, ADC-based switch sensing, and PWM-driven motor drivers. Use Value: Integrated MSCAN08 enables direct connection to vehicle CAN backbone; Flash memory allows OEM-specific calibration updates over dealer diagnostic tools. |
Use Scenario: Local HMI and motor sequencing logic in HVAC blower or conveyor drive panels. IC Role / Device Role / Timing Role: Real-time sensor acquisition (temperature, current), CAN network node, and SPI-driven display interface. Use Value: Dual power domains (VDDA/VSSA) ensure stable ADC readings amid motor switching noise; KBI handles keypad input with hardware debouncing. |
| Body Control Module (BCM) Subnode | Off-Highway Equipment Monitor |
Use Scenario: Secondary control unit managing trunk release, hazard lights, and rain-sensing wipers in distributed BCM architecture. IC Role / Device Role / Timing Role: CAN slave node receiving commands from main BCM; executes local actuator control with timed interrupts. Use Value: COP watchdog ensures fail-safe behavior during CAN bus faults; STOP mode extends battery life in parked-vehicle monitoring states. |
Use Scenario: Telematics edge node in agricultural or construction machinery reporting engine status and hydraulic pressure. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating analog (pressure, temp), digital (switch), and CAN messages before forwarding via cellular gateway. Use Value: 10-bit ADC resolution supports 0.5% pressure measurement accuracy; Flash block protection prevents unauthorized firmware modification in field-deployed units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC908GZ8CFAE | 8 KB Flash, same package and peripheral set; lacks one TIM channel and has reduced RAM (256 B). | Suitable for simpler nodes with fewer concurrent tasks or smaller firmware images. | Select when cost sensitivity outweighs future firmware scalability needs. |
| S9KEAZ128AMLH | ARM Cortex-M0+ core, 128 KB Flash, 16 KB RAM, enhanced CAN FD support, and higher clock speed (48 MHz). | Targets next-generation designs requiring higher throughput, secure boot, or CAN FD migration path. | Choose for new designs needing longer lifecycle, toolchain modernization, or increased processing headroom. |
Compared with MC908GZ16CFAE, the MC908GZ8CFAE offers identical architecture and pin compatibility but reduced memory resources - making it a cost-optimized alternative for legacy-replacement scenarios; the S9KEAZ128AMLH provides architectural evolution with ARM ecosystem advantages but requires PCB and software redesign.
Availability
MC908GZ16CFAE is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control panels, and off-highway equipment monitors requiring stable component supply and long-term manufacturing continuity.
Supply support for MC908GZ16CFAE 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 pioneer in automotive and industrial microcontrollers, known for robust silicon design and long-lifecycle product stewardship.
The MC908GZ16CFAE belongs to the M68HC08 GZ-series, engineered specifically for cost-sensitive, CAN-enabled automotive body control applications where reliability, Flash flexibility, and low-power operation are mandatory.
FAQ
What is the maximum operating frequency of the MC908GZ16CFAE?
The MC908GZ16CFAE supports a maximum bus frequency of 8 MHz, achieved via its integrated PLL-based Clock Generator Module (CGM). This frequency is sustained across the full operating voltage range (4.5–5.5 V) and industrial temperature range (–40°C to +85°C), ensuring deterministic timing for CAN message scheduling and ADC sampling in automotive environments.
Does the MC908GZ16CFAE include a built-in CAN transceiver?
No, the MC908GZ16CFAE does not integrate a CAN physical layer transceiver. It contains only the MSCAN08 controller (data link layer), which requires an external CAN transceiver (e.g., MC33388, TJA1042) connected to PTC0 (CANTX) and PTC1 (CANRX) pins. This separation allows design flexibility in selecting transceivers optimized for fault tolerance, wake-on-CAN, or EMC performance.
How is Flash memory protected against accidental overwrite in the MC908GZ16CFAE?
The MC908GZ16CFAE implements Flash block protection via the Flash Block Protect Register (FBPROT) and Flash Control Register (FCCOB). Users can lock individual 512-byte pages or enable mass protection, preventing unintended program/erase operations during runtime or debug sessions - a critical feature for certified automotive firmware deployments.
What low-power modes does the MC908GZ16CFAE support, and what is typical current draw in STOP mode?
The MC908GZ16CFAE supports WAIT and STOP modes. In STOP mode, typical current consumption is ≤10 µA at 5 V and 25°C, with RAM and selected registers retained. This enables ultra-low-power wake-on-interrupt operation for battery-backed applications such as vehicle intrusion detection or remote sensor nodes.
Can the MC908GZ16CFAE be programmed in-circuit after soldering to the PCB?
Yes, the MC908GZ16CFAE supports in-system programming (ISP) via its Background Debug Mode (BDM) interface using a standard BDM pod. This allows full Flash read/write/erase operations without removing the device from the target board - essential for prototyping, calibration, and field firmware updates.
MC908GZ16CFAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- HC08
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Verified
- Core Processor:
- HC08
- Core Size:
- 8-Bit
- Speed:
- 8MHz
- Connectivity:
- CANbus, LINbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM
- Number of I/O:
- 37
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC908GZ16CFAE FAQ
1.How can I place an order for MC908GZ16CFAE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC908GZ16CFAE 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 MC908GZ16CFAE reliable?
The price and inventory of MC908GZ16CFAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC908GZ16CFAE is usually 5 days.
3.What payment methods are accepted for MC908GZ16CFAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC908GZ16CFAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC908GZ16CFAE?
MC908GZ16CFAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC908GZ16CFAE 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 MC908GZ16CFAE?
For technical support, including MC908GZ16CFAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC908GZ16CFAE requirements.
6.How does Aetrix verify that MC908GZ16CFAE is sourced from the original manufacturer or authorized distributors?
All MC908GZ16CFAE 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 MC908GZ16CFAE meets industry standards.
7.What is the process for return or replacement of MC908GZ16CFAE?
All MC908GZ16CFAE units undergo pre-shipment inspection (PSI). If there is an issue with MC908GZ16CFAE, 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 MC908GZ16CFAE part is unused and in its original packaging.
Return procedure for MC908GZ16CFAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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