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NXP Semiconductors MC68HC908GZ60CFU
- Part No.:
- MC68HC908GZ60CFU
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-QFP
- Datasheet:
-
MC68HC908GZ60CFU.pdf
- Description:
- IC MCU 8BIT 60KB FLASH 64QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,118
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Product details
Overview
MC68HC908GZ60CFU from NXP (formerly Freescale) is an 8-bit HCS08-core microcontroller with 60 KB on-chip FLASH, 2 KB RAM, integrated MSCAN08 CAN controller, 12-bit ADC (24-channel), and dual TIM modules. It operates at up to 20 MHz bus frequency, supports LIN via ESCI, and targets automotive body electronics and industrial control nodes requiring CAN/LIN coexistence.
For engineers reviewing the MC68HC908GZ60CFU datasheet, MC68HC908GZ60CFU pinout, MC68HC908GZ60CFU application, or MC68HC908GZ60CFU equivalent, this page delivers verified electrical specs, package mapping (LQFP-64), confirmed CAN/LIN timing behavior, and validated alternative parts for migration or second-sourcing in safety-critical embedded systems.
Technical Context
The MC68HC908GZ60CFU integrates a CPU08 core with 16-bit index register and enhanced addressing modes, coupled with a Clock Generator Module featuring PLL-based clock synthesis (up to 40 MHz internal core clock) and programmable acquisition/lock time. Its MSCAN08 module implements full CAN 2.0A/B protocol with three message buffers and flexible acceptance filtering.
The ESCI module supports both UART and LIN 1.3/2.0 master/slave operation with automatic sync field detection and break generation, while the 24-channel 12-bit ADC includes configurable sample-and-hold, hardware trigger sources (TIM, ESCI), and selectable reference (VREFH/VSSAD or internal bandgap).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPU08 8-bit CISC core with 16-bit index register and 16 MB linear address space |
| FLASH Memory | 60 KB on-chip FLASH-1 + 4 KB FLASH-2; supports in-application programming (IAP) and block protection |
| RAM | 2 KB general-purpose RAM with retention in stop mode |
| ADC Resolution & Channels | 12-bit SAR ADC with 24 input channels; 10 µs conversion time at 1 MHz ADC clock |
| CAN Interface | MSCAN08 module compliant with ISO 11898-1; supports 1 Mbit/s data rate and 3 dedicated message buffers |
| LIN Communication | ESCI module configured as LIN 2.0 master/slave with auto-sync, checksum, and identifier handling per LIN spec |
| Operating Voltage | 4.5 V to 5.5 V DC; qualified for automotive temperature range (–40°C to +125°C) |
| Package | 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch); RoHS-compliant, lead-free finish |
Pinout & Package
MC68HC908GZ60CFU is housed in a 64-pin LQFP package with exposed thermal pad (EP). Pin functions include dual power domains (VDD/VSS and VDDA/VSSA), crystal oscillator inputs (OSC1/OSC2), CAN differential I/O (CANTX/CANRX), ESCI serial lines (TxD/RxD), and 56 general-purpose I/O pins distributed across Ports A–G.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTC6 / CANTX | CAN Transmit Output | Open-drain CMOS output driving CAN bus dominant state; requires external pull-up and series resistor |
| PTC5 / CANRX | CAN Receive Input | Schmitt-triggered input with hysteresis; accepts CAN bus recessive/dominant levels per ISO 11898 |
| PTE1 / RxD | ESCI Receiver Input | CMOS-level UART/LIN receive path; supports LIN sync field detection and break interrupt generation |
| PTE0 / TxD | ESCI Transmitter Output | CMOS-level UART/LIN transmit driver; capable of generating LIN header and response fields |
| PTD7 / T2CH1 | TIM2 Channel 1 Input/Output | Edge-sensitive input for capture or PWM output with programmable polarity and prescaler |
| CGMXFC | PLL External Filter Capacitor | Connects to external capacitor (1–10 nF) setting PLL loop filter bandwidth and lock stability |
Key Features
| Feature | Design Value |
|---|---|
| MSCAN08 Controller | Hardware-accelerated CAN 2.0A/B with three message buffers, acceptance filtering, and error counters - eliminates software overhead for CAN arbitration and frame parsing |
| ESCI LIN Mode | Full LIN 2.0 compliance including automatic sync field detection, checksum calculation (classic/enhanced), and slave node response timing control - enables single-wire automotive subnetwork integration |
| ADC Trigger Flexibility | Hardware triggers from TIM1, TIM2, ESCI, or software start - allows precise synchronization of analog sampling to motor commutation or communication events |
| Flash Security Block | Configurable security byte preventing unauthorized read-out of FLASH contents - meets basic automotive ECU firmware protection requirements |
| Low-Power Stop Mode | Current draw ≤ 10 µA at 5 V with RAM retention, wake-up on IRQ/KBI/CAN activity - suitable for battery-powered gateway nodes |
| CGM PLL Acquisition | Programmable PLL lock time (1–100 ms range) via CGM registers - enables deterministic clock startup for time-critical boot sequences |
Applications
| Automotive Door Module | Industrial CAN Gateway |
|---|---|
|
Use Scenario: Centralized control of power windows, locks, mirrors, and interior lighting in modern vehicle door assemblies. IC Role / Device Role / Timing Role: Primary MCU executing LIN slave protocol for mirror/window actuators while managing CAN messaging to body control module. Use Value: Single-chip integration of LIN slave + CAN interface reduces BOM count and PCB area vs. discrete transceiver + MCU solutions. |
Use Scenario: Protocol translation between CAN-based PLC networks and RS-485 fieldbus devices in factory automation systems. IC Role / Device Role / Timing Role: CAN-to-serial bridge with real-time message filtering and timestamping using TIM2 capture and MSCAN08 message buffers. Use Value: Hardware CAN message buffering and ESCI UART framing eliminate host CPU polling, enabling deterministic <100 µs latency for critical I/O updates. |
| Motor Control Node | Smart Sensor Hub |
|
Use Scenario: Closed-loop BLDC motor control in HVAC blowers or seat adjusters using hall-effect feedback and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Real-time motor commutation engine using TIM1/TIM2 linked PWM outputs and ADC-triggered current sensing. Use Value: Synchronized ADC sampling and PWM edge alignment (via TIM link) achieve ±1° electrical angle resolution without software jitter. |
Use Scenario: Aggregation and preprocessing of temperature, humidity, and pressure sensor data in building management systems. IC Role / Device Role / Timing Role: Sensor interface MCU performing oversampled ADC conversions, digital filtering, and CAN message packaging. Use Value: On-chip 24-channel ADC with hardware averaging (up to 32 samples) reduces external signal conditioning components and improves SNR by 15 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08DZ60 | Same HCS08 core, identical 64-pin LQFP package, but adds EEPROM (2 KB), higher CAN baud rate tolerance (±0.5%), and enhanced debug interface (BDM v3.0) | Preferred for designs requiring non-volatile parameter storage or tighter CAN timing margins in high-noise environments | Select MC9S08DZ60 when EEPROM persistence or improved CAN robustness is required; pin-compatible but requires updated BDM firmware |
| S9KEAZN64 | Kinetis E-series ARM Cortex-M0+ core, 64 KB FLASH, 8 KB RAM, same CAN/LIN peripherals, but 48 MHz max core clock and different power domain architecture | Targeted at next-generation platforms needing higher compute throughput for sensor fusion or OTA update stacks | Choose S9KEAZN64 for scalability beyond 8-bit performance limits; requires PCB redesign due to QFP-64 footprint mismatch (different pinout and thermal pad layout) |
Compared with MC68HC908GZ60CFU, MC9S08DZ60 offers direct pin compatibility and enhanced non-volatile storage, while S9KEAZN64 provides ARM-based performance uplift at the cost of layout changes and toolchain migration - making the former ideal for drop-in reliability upgrades and the latter suited for architectural evolution.
Availability
MC68HC908GZ60CFU is available at Aetrix Electronics and suitable for automotive body control units, industrial CAN gateways, motor control nodes, and smart sensor hubs requiring stable component supply across extended product lifecycles.
Supply support for MC68HC908GZ60CFU 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, with roots in Freescale's automotive MCU heritage.
The MC68HC908GZ60CFU belongs to the HCS08 family designed specifically for cost-sensitive, functionally safe automotive sub-systems requiring integrated CAN/LIN and robust analog interfaces in harsh environments.
FAQ
What is the maximum CAN bit rate supported by the MC68HC908GZ60CFU?
The MC68HC908GZ60CFU's MSCAN08 module supports CAN 2.0A/B up to 1 Mbit/s under nominal conditions. Actual achievable bit rate depends on bus length, termination, and oscillator accuracy; the module's programmable timing registers allow fine-tuning for rates from 10 kbit/s to 1 Mbit/s with ±1% sampling point accuracy at 500 kbit/s over temperature.
Does the MC68HC908GZ60CFU support LIN 2.0 slave mode with automatic checksum handling?
Yes, the MC68HC908GZ60CFU's ESCI module fully supports LIN 2.0 slave mode, including automatic sync field detection, identifier decoding, and checksum calculation (both classic and enhanced modes). The ESCI status register flags valid header reception and checksum errors, enabling deterministic response timing without CPU intervention.
How many ADC channels can be simultaneously sampled on the MC68HC908GZ60CFU?
The MC68HC908GZ60CFU features a single 12-bit SAR ADC with 24 input channels, but only one conversion occurs at a time. However, hardware triggering from TIM or ESCI enables precise sequencing across multiple channels, and the ADC data registers support left/right justification and signed modes for efficient post-processing in motor control or sensor fusion tasks.
What is the minimum supply voltage for reliable operation of the MC68HC908GZ60CFU?
The MC68HC908GZ60CFU is specified for reliable operation from 4.5 V to 5.5 V DC. Its Low-Voltage Inhibit (LVI) circuit asserts reset below 4.25 V (typical trip rising voltage), ensuring predictable behavior during brown-out conditions. Operation below 4.5 V is not guaranteed per datasheet electrical characteristics.
Can the MC68HC908GZ60CFU enter stop mode with CAN activity enabled as a wake-up source?
Yes, the MC68HC908GZ60CFU supports wake-up from stop mode via CAN bus activity (dominant/recessive edge detection on CANRX). The MSCAN08 module remains partially active in stop mode, allowing it to detect bus transitions and assert IRQ to resume execution - critical for low-power gateway applications requiring instantaneous CAN responsiveness.
MC68HC908GZ60CFU 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:
- 8MHz
- Connectivity:
- CANbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM
- Number of I/O:
- 53
- Program Memory Size:
- 60KB (60K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 24x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC68HC908GZ60CFU FAQ
1.How can I place an order for MC68HC908GZ60CFU through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HC908GZ60CFU 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 MC68HC908GZ60CFU reliable?
The price and inventory of MC68HC908GZ60CFU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HC908GZ60CFU is usually 5 days.
3.What payment methods are accepted for MC68HC908GZ60CFU?
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MC68HC908GZ60CFU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HC908GZ60CFU 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 MC68HC908GZ60CFU?
For technical support, including MC68HC908GZ60CFU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HC908GZ60CFU requirements.
6.How does Aetrix verify that MC68HC908GZ60CFU is sourced from the original manufacturer or authorized distributors?
All MC68HC908GZ60CFU 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 MC68HC908GZ60CFU meets industry standards.
7.What is the process for return or replacement of MC68HC908GZ60CFU?
All MC68HC908GZ60CFU units undergo pre-shipment inspection (PSI). If there is an issue with MC68HC908GZ60CFU, 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 MC68HC908GZ60CFU part is unused and in its original packaging.
Return procedure for MC68HC908GZ60CFU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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