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NXP Semiconductors MC9S08QG84CFFE
- Part No.:
- MC9S08QG84CFFE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MC9S08QG84CFFE.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,801
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Product details
Overview
MC9S08QG84CFFE from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 8 KB Flash, 512 B RAM, 20-MHz CPU, integrated ADC, SCI, SPI, I²C, TPM, and background debug interface - used in low-cost industrial sensor nodes and appliance control panels.
For engineers reviewing the MC9S08QG84CFFE datasheet, MC9S08QG84CFFE pinout, MC9S08QG84CFFE application, or MC9S08QG84CFFE equivalent, key selection criteria include QFN-16 package compatibility, 12 GPIO + 1 input-only + 1 output-only pin count, internal clock source with FLL trimming, COP watchdog with 1-kHz option, and FLASH block protection for firmware integrity.
Technical Context
The MC9S08QG84CFFE implements the HCS08 CPU core with HC08 instruction set plus BGND, supporting single-wire background debugging and up to 32 interrupt/reset sources. Its ICS module integrates a frequency-locked loop (FLL) with factory-trimmed internal reference enabling ±0.2% resolution and ±2% deviation over voltage/temperature.
Peripherals include an 8-channel 10-bit ADC with hardware trigger via RTI, analog comparator with TPM routing capability, and dual-channel TPM supporting edge-aligned and center-aligned PWM - all operable in Wait mode and selected Stop modes (Stop1/Stop2/Stop3).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | HCS08 8-bit CPU running at up to 20 MHz - enables deterministic real-time control with 1–2 cycle instruction execution. |
| Memory | 8 KB on-chip FLASH (read/program/erase over full VDD/temp) and 512 bytes RAM - supports field firmware updates without external memory. |
| ADC | 8-channel, 10-bit SAR ADC with internal bandgap reference, temperature sensor, and RTI-triggered conversion - suitable for closed-loop thermal or motor current sensing. |
| Clock Source | ICS with FLL + internal 31.25 kHz reference (±0.2% trimmed) and XOSC supporting 1–16 MHz crystals - eliminates need for external oscillator in cost-sensitive designs. |
| Power Modes | Wait + Stop1/Stop2/Stop3 - Stop3 draws <1 µA typical, enabling battery-powered operation for >1 year on coin cell. |
| I/O Pins | 12 general-purpose I/O, 1 input-only (IRQ), 1 output-only (RESET); 10 mA sink/source per pin, 60 mA total package limit - drives LEDs, relays, and logic-level peripherals directly. |
| Debug Interface | Single-wire background debug (BKGD/MS pin) with on-chip ICE and 8-deep FIFO - enables real-time bus capture and breakpoint debugging without JTAG header. |
Pinout & Package
MC9S08QG84CFFE is housed in a 16-pin quad flat no-lead (QFN) package with exposed thermal pad (98ASA00671D), measuring 4 mm × 4 mm × 0.85 mm, RoHS-compliant, and optimized for compact PCB layouts with low thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Supply voltage (2.7–5.5 V) | Primary power rail for core and I/O; requires local 100 nF decoupling to minimize noise on ADC and clock circuits. |
| VSS | Ground reference | Digital ground plane connection; must be tied to exposed pad for thermal and EMI performance. |
| PTA0–PTA5 | Port A bidirectional I/O | 6 GPIO pins with software-selectable pullups, slew rate, and drive strength - configurable as ADC inputs or SCI/SPI signals. |
| PTB0–PTB5 | Port B bidirectional I/O | 6 GPIO pins supporting KBI keyboard interrupt, ACMP output routing, and TPM channel functions. |
| IRQ | Interrupt request input | Active-low, internal pullup enabled - accepts external fault or sensor event signals without external resistor. |
| RESET | Reset input (active-low, open-drain) | Output-only reset assertion path; internal pullup reduces BOM count in simple reset circuits. |
| BKGD/MS | Background debug / mode select | Single-wire debug interface pin - enables programming and real-time debugging using standard BDM toolchain. |
| XIN/XOUT | Crystal/resonator interface | Differential oscillator terminals supporting 31.25 kHz–16 MHz crystals - optional external clock input up to 20 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| FLASH Block Protection | Configurable protection of FLASH sectors via FPROT register - prevents accidental overwrite of bootloader or calibration data during field updates. |
| Low-Voltage Detect (LVD) | Programmable trip point (2.5 V, 2.7 V, 3.0 V, 3.3 V) with reset or interrupt output - ensures reliable operation during brown-out conditions in unregulated supplies. |
| Hardware-Triggered ADC | RTI counter can initiate ADC conversions autonomously - enables precise periodic sampling (e.g., every 1 ms) without CPU intervention. |
| TPM PWM Flexibility | Each of two TPM channels supports input capture, output compare, edge-aligned PWM, and center-aligned PWM - simplifies motor control and LED dimming implementations. |
| Internal Bandgap Reference | On-die 1.2 V reference for ADC and ACMP - eliminates need for external precision reference, reducing component count and board area. |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
Use Scenario: Microcontroller in washing machine main control board managing motor drive, water valve timing, and user interface. IC Role / Device Role / Timing Role: Real-time MCU executing state machine logic, generating PWM for brushless motor commutation, and reading front-panel buttons via KBI. Use Value: Integrated TPM with center-aligned PWM and 12 GPIO enable direct motor phase control and UI polling - eliminating external timer ICs and reducing BOM cost by $0.35/unit. | Use Scenario: Battery-powered temperature/humidity sensor node transmitting data via UART to gateway every 10 seconds. IC Role / Device Role / Timing Role: Low-power sensor aggregator performing ADC reads, data formatting, and SCI transmission while minimizing active time. Use Value: Stop3 mode (<1 µA) combined with RTI-triggered ADC allows 99.8% duty-cycled operation - extending CR2032 battery life to 18+ months. |
| Smart Lighting Dimmer | Small-Motor Fan Controller |
Use Scenario: Triac-based AC dimmer module for LED retrofit bulbs with soft-start and over-temperature shutdown. IC Role / Device Role / Timing Role: Timing-critical zero-crossing detector and phase-angle controller using TPM input capture and PWM output. Use Value: Hardware input capture on TPM channel synchronizes to AC line zero-crossing with <1 µs jitter - enabling flicker-free dimming across 50/60 Hz mains. | Use Scenario: Brushless DC fan controller in network equipment chassis with thermal feedback and speed regulation. IC Role / Device Role / Timing Role: Closed-loop speed controller reading tachometer signal via TPM input capture and adjusting drive PWM duty cycle. Use Value: Integrated 10-bit ADC with internal temperature sensor provides real-time thermal monitoring - enabling dynamic fan speed scaling without external thermistor or signal conditioning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08QG8CDTE | Same core, 8 KB FLASH, 512 B RAM, but in 16-pin TSSOP package - no exposed thermal pad, higher thermal resistance. | Preferred where hand-soldering or legacy TSSOP footprint is required; less suitable for high-ambient-temperature environments. | Select MC9S08QG8CDTE only when PCB layout mandates TSSOP; MC9S08QG84CFFE offers better thermal performance in space-constrained designs. |
| S9S08QG8J2CTJR | NXP rebranded version with identical electrical specs and pinout; same maskset revision 4, qualified for extended temperature range (−40°C to 105°C). | Required for automotive-adjacent industrial applications needing extended temp rating; otherwise functionally interchangeable. | Choose S9S08QG8J2CTJR when operating ambient exceeds 85°C or when long-term supply continuity under NXP branding is prioritized. |
Compared with MC9S08QG8CDTE and S9S08QG8J2CTJR, the MC9S08QG84CFFE delivers optimal thermal dissipation in minimal area via its QFN-16 exposed-pad package, while maintaining full functional equivalence with the former and extended temperature qualification with the latter - making it the default choice for new compact, thermally demanding designs.
Availability
MC9S08QG84CFFE is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, smart lighting dimmers, and small-motor fan controllers requiring stable component supply and long-term lifecycle support.
Supply support for MC9S08QG84CFFE 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 microcontroller heritage.
The HCS08 family - including MC9S08QG84CFFE - was designed for cost-sensitive, low-power embedded control in appliances, sensors, and motor drives, emphasizing integration, debug simplicity, and robustness in harsh environments.
FAQ
What is the maximum operating frequency of the MC9S08QG84CFFE CPU?
The MC9S08QG84CFFE features a 20-MHz HCS08 CPU core, supporting instruction execution at up to 20 million cycles per second. This frequency is achievable using the internal clock source (ICS) with FLL enabled and properly configured, or via external crystal up to 16 MHz. The MC9S08QG84CFFE maintains full functionality across its specified voltage (2.7–5.5 V) and temperature (−40°C to 85°C) ranges at this speed.
Does the MC9S08QG84CFFE support in-circuit debugging without additional hardware?
Yes, the MC9S08QG84CFFE includes a single-wire background debug interface using the BKGD/MS pin, enabling full in-circuit emulation (ICE), real-time bus capture, and breakpoint debugging without JTAG headers or external debug probes. The on-chip debug module provides an 8-deep FIFO and supports tag/force breakpoints - allowing engineers to develop and validate firmware directly on the target MC9S08QG84CFFE hardware.
What peripheral modules are active in Stop3 mode on the MC9S08QG84CFFE?
In Stop3 mode, the MC9S08QG84CFFE retains operation of the Real-Time Interrupt (RTI) module and the Low-Voltage Detect (LVD) system, both of which can wake the device. The ADC, TPM, SCI, and SPI modules are disabled, but the RTI can trigger wakeup events at programmable intervals (e.g., every 1 ms to 1 s). This enables ultra-low-power periodic sensing while keeping total current below 1 µA - a key capability of the MC9S08QG84CFFE for battery-operated applications.
Can the MC9S08QG84CFFE ADC use an internal voltage reference?
Yes, the MC9S08QG84CFFE ADC includes an internal 1.2 V bandgap reference channel that can be selected as VREFH, eliminating the need for external reference components. This reference is factory-calibrated and stable across temperature and supply voltage, supporting accurate 10-bit conversions for sensor interfacing. The internal reference is accessible via the ADC configuration register (ADCCFG) and works concurrently with the on-die temperature sensor - both features are fully integrated within the MC9S08QG84CFFE die.
Is the MC9S08QG84CFFE pin-compatible with other QG-series microcontrollers?
The MC9S08QG84CFFE shares the same 16-pin QFN package (98ASA00671D) and pin assignment with MC9S08QG8 variants like MC9S08QG8CDTE (TSSOP) and S9S08QG8J2CTJR, but not with 24-pin or 8-pin QG-family members. Pin functions (e.g., PTA0–PTA5, PTB0–PTB5, BKGD/MS, IRQ) are consistent across 16-pin QFN versions, enabling direct PCB footprint reuse - however, users must verify register mapping and clock initialization sequences remain compatible across maskset revisions.
MC9S08QG84CFFE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 16-VQFN Exposed Pad
- Series:
- S08
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 12
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 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:
MC9S08QG84CFFE FAQ
1.How can I place an order for MC9S08QG84CFFE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08QG84CFFE 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 MC9S08QG84CFFE reliable?
The price and inventory of MC9S08QG84CFFE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08QG84CFFE is usually 5 days.
3.What payment methods are accepted for MC9S08QG84CFFE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08QG84CFFE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08QG84CFFE?
MC9S08QG84CFFE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08QG84CFFE 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 MC9S08QG84CFFE?
For technical support, including MC9S08QG84CFFE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08QG84CFFE requirements.
6.How does Aetrix verify that MC9S08QG84CFFE is sourced from the original manufacturer or authorized distributors?
All MC9S08QG84CFFE 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 MC9S08QG84CFFE meets industry standards.
7.What is the process for return or replacement of MC9S08QG84CFFE?
All MC9S08QG84CFFE units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08QG84CFFE, 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 MC9S08QG84CFFE part is unused and in its original packaging.
Return procedure for MC9S08QG84CFFE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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