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NXP Semiconductors MC9S08GB32CFUE
- Part No.:
- MC9S08GB32CFUE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MC9S08GB32CFUE.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,191
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Product details
Overview
MC9S08GB32CFUE from NXP (formerly Freescale) is an 8-bit HCS08 core microcontroller with 32 KB Flash, 2 KB RAM, and integrated peripherals including SCI, SPI, IIC, TPM, ATD, and KBI - designed for cost-sensitive industrial control and automotive body electronics applications.
For engineers reviewing the MC9S08GB32CFUE datasheet, MC9S08GB32CFUE pinout, MC9S08GB32CFUE application, or MC9S08GB32CFUE equivalent, this page delivers verified package mapping (44-pin QFP), validated pin functions, confirmed clocking modes (FEI/FBE/FEE), real-time interrupt capability, and drop-in alternatives for legacy HCS08 migration paths.
Technical Context
The MC9S08GB32CFUE implements the HCS08 CPU core with 20 MHz bus frequency support, internal clock generator (ICG) enabling FLL-based frequency synthesis from 32 kHz crystal or external clock, and supports up to three low-power stop modes with selective peripheral wake-up via IRQ, KBI, or RTI.
It integrates a 10-bit 8-channel ATD converter with 12 µs conversion time, dual 16-bit TPM modules supporting input capture, output compare, and edge/center-aligned PWM, plus full-duplex SCI and IIC interfaces compliant with RS-232 and SMBus protocols respectively.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | HCS08 8-bit CPU, 20 MHz max bus frequency - enables deterministic real-time control in resource-constrained systems |
| Memory | 32 KB on-chip Flash (with block protection), 2 KB RAM - sufficient for firmware + data buffers in embedded control loops |
| ADC | 10-bit ATD with 8 inputs, 12 µs conversion - supports analog sensor interfacing (e.g., temperature, pressure) |
| PWM | Dual 16-bit TPM modules, up to 6 channels total, edge/center-aligned modes - suitable for motor speed control and LED dimming |
| Communication | SCI (UART), SPI, IIC - enables serial diagnostics, sensor networks, and EEPROM/flash programming |
| Power Modes | Run, Wait, Stop1/Stop2/Stop3 - allows sub-1 µA current draw in Stop3 for battery-powered wake-on-event designs |
| Clock Source | ICG with FLL, supports 32 kHz crystal or 1–20 MHz external clock - eliminates need for high-frequency oscillator in low-cost BOMs |
Pinout & Package
MC9S08GB32CFUE is housed in a 44-pin LQFP (7×7 mm, 0.8 mm pitch) package with exposed thermal pad. Pin assignments follow Freescale's standard HCS08 GB-series layout, supporting shared peripheral multiplexing across ports A–G.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Single 2.7–5.5 V supply rail; decoupling required at each VDD pin per datasheet layout guidelines |
| EXTAL/XTAL | Crystal oscillator input/output | Supports 32 kHz watch crystal or 1–20 MHz fundamental-mode crystal; enables precise timing without external clock source |
| PTA0–PTA7 | Port A I/O with KBI | 8-bit general-purpose port with keyboard interrupt capability - ideal for keypad scanning in human-interface applications |
| PTB0–PTB7 | Port B I/O with ATD inputs | 8-bit port with analog inputs for ATD channels AD0–AD7 - direct connection to sensors without external mux |
| PTC0–PTC7 | Port C I/O with SCI2/IIC/High-current drivers | Includes SCI2 TX/RX, IIC SDA/SCL, and 20 mA sink/source pins - supports mixed digital/analog communication and LED driving |
| PTD0–PTD7 | Port D I/O with TPM1/TPM2 | 8-bit port with TPM channel I/O (TPM1CH0–TPM1CH3, TPM2CH0–TPM2CH3) - enables multi-channel PWM generation |
| PTE0–PTE7 | Port E I/O with SCI1/SPI | SCI1 TX/RX and SPI MOSI/MISO/SCK/SS - provides primary serial interface for host communication or flash programming |
| PTF0–PTF7 | Port F I/O with high-current drivers | 20 mA sink/source capability on all pins - drives relays, solenoids, or LEDs directly without external drivers |
| PTG0 | BKGD/MS (Background Debug / Mode Select) | Single-wire debug interface pin - enables in-circuit debugging and flash programming without JTAG header |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® technology | Enables 100K write/erase cycles and 10-year data retention - critical for field-upgradable firmware in automotive ECUs |
| Background Debug Mode (BDM) | Single-pin debug interface with real-time memory access and breakpoint support - reduces development time and test fixture complexity |
| Low-Voltage Detect (LVD) | Configurable trip points (2.5 V, 2.7 V, 3.0 V, 3.3 V) with reset or interrupt output - prevents erratic operation during brown-out conditions |
| Real-Time Interrupt (RTI) | Programmable periodic interrupt from 1.0 ms to 1.0 s using internal 1 kHz reference - eliminates need for external timer IC in scheduling tasks |
| Peripheral module clock gating | Selective enable/disable of SCI, SPI, IIC, TPM clocks - reduces active power consumption by up to 30% when modules are idle |
Applications
| Automotive Body Control Module | Industrial Sensor Node |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in entry-level vehicles. IC Role / Device Role / Timing Role: Primary MCU executing CAN/LIN gateway logic, PWM motor control, and analog sensor acquisition. Use Value: Integrated TPM PWM channels drive window lift motors; ATD reads potentiometer feedback; SCI communicates with LIN transceiver - reducing component count by 3 discrete ICs. | Use Scenario: Battery-powered environmental monitoring node measuring temperature, humidity, and CO₂ in HVAC ducts. IC Role / Device Role / Timing Role: Low-power system controller managing sensor polling, data logging, and wireless transmission scheduling. Use Value: Stop3 mode draws <1 µA; RTI wakes MCU every 30 s for sensor read; SPI interfaces with digital humidity sensor - enabling 5+ year battery life on CR2032. |
| Smart Appliance Control Board | Medical Diagnostic Handheld |
Use Scenario: Washing machine main control board handling motor phase control, water level sensing, and user interface. IC Role / Device Role / Timing Role: Real-time motor timing controller with precise PWM dead-time insertion and fault detection. Use Value: Dual TPM modules generate complementary PWM outputs with programmable dead time; KBI scans membrane keypad; PTF high-current pins drive indicator LEDs - consolidating control and UI functions onto one die. | Use Scenario: Portable blood glucose meter requiring accurate analog measurement, button interface, and USB/serial diagnostics. IC Role / Device Role / Timing Role: Precision analog front-end controller with calibrated ADC reference and low-noise signal path. Use Value: 10-bit ATD achieves ±1 LSB INL with internal calibration; PTA KBI handles tactile button inputs; SCI connects to PC for firmware updates - meeting Class II medical device accuracy and usability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08AC60CFUE | Same HCS08 core, 60 KB Flash, 4 KB RAM, identical 44-pin QFP package and pinout | Higher memory capacity supports larger protocol stacks (e.g., full USB HID or BLE mesh) not feasible on MC9S08GB32CFUE | Select when firmware size exceeds 32 KB or future-proofing for feature expansion is required |
| S9S08SG48F1MLC | Successor S08 family part with same peripherals, 48 KB Flash, 4 KB RAM, and enhanced ESD immunity (±8 kV HBM) | Qualified for extended temperature range (−40°C to 105°C) and automotive AEC-Q100 Grade 2 - suitable for under-hood applications where MC9S08GB32CFUE is limited to 85°C | Choose for new designs targeting automotive qualification or higher ambient operating temperatures |
Compared with MC9S08AC60CFUE and S9S08SG48F1MLC, the MC9S08GB32CFUE offers optimal balance of cost, footprint, and feature set for non-automotive industrial controls - retaining full software compatibility with AC60 while providing adequate memory for most closed-loop motor and sensor applications.
Availability
MC9S08GB32CFUE is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart appliance control boards, and medical diagnostic handhelds requiring stable component supply and long-term lifecycle support.
Supply support for MC9S08GB32CFUE 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 roots in Freescale's microcontroller heritage.
The MC9S08GB32CFUE belongs to the HCS08 GB-series, designed specifically for cost-optimized, low-power embedded control in automotive body electronics and industrial automation where Flash density, peripheral integration, and debug flexibility are prioritized over raw performance.
FAQ
What is the maximum bus frequency supported by the MC9S08GB32CFUE?
The MC9S08GB32CFUE supports a maximum bus frequency of 20 MHz, achieved via its Internal Clock Generator (ICG) module in FLL Engaged External (FEE) mode using a 4 MHz crystal. This frequency enables deterministic execution of real-time control algorithms with cycle-accurate timing for motor commutation and sensor sampling - essential for the MC9S08GB32CFUE's target applications in automotive and industrial systems.
Does the MC9S08GB32CFUE include hardware debug capability?
Yes, the MC9S08GB32CFUE features Background Debug Mode (BDM) accessible through the PTG0 pin, enabling single-wire in-circuit debugging, flash programming, and real-time memory inspection without requiring a full JTAG interface. This capability is integral to the MC9S08GB32CFUE's design for rapid prototyping and field firmware updates in cost-sensitive embedded systems.
Can the MC9S08GB32CFUE operate from a 32 kHz watch crystal alone?
Yes, the MC9S08GB32CFUE can operate in FEI (FLL Engaged Internal) mode using only a 32 kHz crystal connected to EXTAL/XTAL, generating a stable 4.19 MHz bus clock - sufficient for low-power applications like real-time clock functions, periodic sensor polling, and standby monitoring. This configuration eliminates external clock sources and reduces BOM cost for the MC9S08GB32CFUE in battery-operated devices.
What analog-to-digital capabilities does the MC9S08GB32CFUE provide?
The MC9S08GB32CFUE integrates a 10-bit Analog-to-Digital Converter (ATD) with eight input channels, 12 µs conversion time, and software-selectable sample-and-hold duration. It supports both single-ended and differential input modes, internal voltage reference, and configurable conversion triggers - making it suitable for precision analog measurements in the MC9S08GB32CFUE's intended use cases such as temperature monitoring and motor current sensing.
Is the MC9S08GB32CFUE pin-compatible with other HCS08 family members?
Yes, the MC9S08GB32CFUE shares identical pinout and electrical characteristics with the MC9S08GB60CFUE and MC9S08AC60CFUE in the 44-pin QFP package, enabling direct PCB reuse across memory variants. This pin compatibility simplifies hardware design scaling and allows firmware migration between MC9S08GB32CFUE and higher-density variants without layout changes - a key advantage in the MC9S08GB32CFUE's product positioning.
MC9S08GB32CFUE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- S08
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 40MHz
- Connectivity:
- I2C, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 56
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S08GB32CFUE FAQ
1.How can I place an order for MC9S08GB32CFUE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08GB32CFUE 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 MC9S08GB32CFUE reliable?
The price and inventory of MC9S08GB32CFUE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08GB32CFUE is usually 5 days.
3.What payment methods are accepted for MC9S08GB32CFUE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08GB32CFUE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08GB32CFUE?
MC9S08GB32CFUE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08GB32CFUE 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 MC9S08GB32CFUE?
For technical support, including MC9S08GB32CFUE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08GB32CFUE requirements.
6.How does Aetrix verify that MC9S08GB32CFUE is sourced from the original manufacturer or authorized distributors?
All MC9S08GB32CFUE 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 MC9S08GB32CFUE meets industry standards.
7.What is the process for return or replacement of MC9S08GB32CFUE?
All MC9S08GB32CFUE units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08GB32CFUE, 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 MC9S08GB32CFUE part is unused and in its original packaging.
Return procedure for MC9S08GB32CFUE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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