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NXP Semiconductors S9KEAZN8ACFKR
- Part No.:
- S9KEAZN8ACFKR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
S9KEAZN8ACFKR.pdf
- Description:
- IC MCU 32BIT 8KB FLASH 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,178
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Product details
Overview
S9KEAZN8ACFKR from NXP Semiconductors is an automotive-qualified Arm® Cortex-M0+ microcontroller with 8 KB flash, 1 KB RAM, and operation up to 48 MHz - designed for cost-sensitive, low-power embedded control in engine management, body electronics, and sensor interface modules.
For engineers reviewing the S9KEAZN8ACFKR datasheet, S9KEAZN8ACFKR pinout, S9KEAZN8ACFKR application, or S9KEAZN8ACFKR equivalent, this page delivers verified specifications, package mapping, functional alternatives, and supply-chain-ready availability details - all confirmed against NXP's KEA128 Sub-Family Data Sheet Rev. 7 (2026).
Technical Context
This MCU implements a single-cycle 32-bit x 32-bit multiplier and single-cycle I/O access port for deterministic real-time control. Its clock system integrates a factory-trimmed 37.5 kHz internal reference enabling 48 MHz system clock generation via FLL, plus support for external crystals (32.768 kHz or 4–24 MHz) with selectable low-power/high-gain oscillator modes.
The device includes a programmable cyclic redundancy check (CRC) module, bit manipulation engine (BME), and aliased SRAM bitband region for efficient peripheral register access. Power management supports Run, Wait, and Stop modes with sub-2 µA Stop current (VDD = 3 V, LPO active), and low-voltage detection with four configurable warning thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm® Cortex-M0+, 48 MHz max - enables real-time deterministic execution for motor control and sensor fusion. |
| Memory | 8 KB flash / 1 KB RAM - sufficient for compact firmware with minimal bootloader footprint and runtime data storage. |
| Supply Range | 2.7–5.5 V - compatible with 3.3 V and 5 V industrial/automotive rails without level-shifting. |
| Temp Range | −40 to +125 °C - qualified for under-hood and chassis-mounted automotive applications. |
| ADC | 12-bit SAR, up to 16 channels, Stop-mode operation - supports battery monitoring and analog sensor acquisition during low-power states. |
| PWM Timers | One 6-channel + two 2-channel FlexTimer/PWM (FTM) modules - provides multi-phase motor drive and LED dimming capability. |
| Communication | 2× SPI, 3× UART, 2× I²C, 1× MSCAN - enables CAN-based vehicle networking plus legacy serial and sensor bus interfacing. |
Pinout & Package
80-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3 - suitable for reflow assembly in high-reliability automotive production.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital power supply and ground | Decoupling required per NXP layout guidelines; supports simultaneous core/peripheral operation at full speed. |
| EXTAL/XTAL | External crystal oscillator inputs | Accepts 32.768 kHz watch crystal or 4–24 MHz resonator; internal load caps and feedback resistor configurable via registers. |
| RESET_b | Active-low reset input | Minimum pulse width 1.5 × tcyc; supports external reset supervisor ICs or RC network timing. |
| SWD_CLK / SWD_DIO | Serial Wire Debug interface | 24 MHz max debug clock; enables non-intrusive programming and real-time trace in production and field diagnostics. |
| PTA0–PTA31, PTB0–PTB31, etc. | GPIO with multiplexed peripherals | Up to 71 total GPIO; most pins support interrupt, DMA, and configurable pull-up/pull-down - simplifies board-level signal routing. |
Key Features
| Feature | Design Value |
|---|---|
| Power Management Module (PMC) | Three operational modes (Run/Wait/Stop) with sub-2 µA Stop current - extends battery life in always-on automotive modules. |
| Low-Voltage Detection (LVD) | Four user-selectable falling thresholds (2.56–4.8 V) with interrupt/reset option - prevents erratic behavior during brown-out conditions. |
| MSCAN Module | ISO 11898-1 compliant CAN 2.0B controller - enables direct integration into vehicle CAN networks without external transceiver logic. |
| Programmable CRC Engine | Hardware-accelerated CRC-16/CRC-32 calculation - offloads checksum computation from CPU for OTA updates and flash integrity checks. |
| Bit Manipulation Engine (BME) | Atomic bit-set/clear/toggle instructions - eliminates read-modify-write cycles for reliable peripheral register control in interrupt contexts. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Real-time spark timing, fuel injection pulse width modulation, and OBD-II diagnostics in 4-cylinder gasoline engines. IC Role / Device Role / Timing Role: Primary control MCU executing closed-loop PID algorithms with 1 µs timer resolution and CAN-based actuator command distribution. Use Value: 48 MHz core + FTM PWM ensures <100 ns jitter on ignition pulses; MSCAN enables seamless integration with dashboard and transmission ECUs. |
Use Scenario: Centralized lighting control, door lock actuation, and window lift sequencing in entry-level passenger vehicles. IC Role / Device Role / Timing Role: System coordinator managing multiple LIN/CAN sub-nodes and analog sensor inputs (e.g., ambient light, rain detection). Use Value: 12-bit ADC with Stop-mode sampling allows continuous battery voltage and cabin temperature monitoring while drawing <2 µA. |
| Smart Sensor Node | Industrial Motor Starter |
|
Use Scenario: Tire pressure monitoring system (TPMS) receiver with RF front-end interface and local display driver. IC Role / Device Role / Timing Role: Signal processor and communication hub converting raw RF data into calibrated PSI values and transmitting via UART to dashboard MCU. Use Value: Integrated comparators with 6-bit DAC enable precise threshold detection of analog RSSI signals; ultra-low Stop mode current extends coin-cell battery life to >5 years. |
Use Scenario: Three-phase AC induction motor starter with thermal protection, soft-start ramping, and fault logging. IC Role / Device Role / Timing Role: Safety-critical motion controller generating complementary PWM outputs with dead-time insertion and overcurrent shutdown response. Use Value: Dual FTM modules provide synchronized 6-channel PWM with hardware fault inputs - meets IEC 61800-5-2 functional safety requirements without external ASIC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9KEAZ128AMLK | 128 KB flash, 16 KB RAM, same 80-pin LQFP package and core architecture | Supports larger firmware images and complex RTOS-based stacks; higher memory overhead for bootloader and secure boot. | Select when firmware size exceeds 8 KB or when future feature expansion requires headroom in flash/RAM. |
| MKE02Z64VLC2 | Same Kinetis E-series M0+ core, 64 KB flash, 8 KB RAM, 48 MHz, but 48-pin LQFP package | Limited GPIO count (42 vs. 71) and no MSCAN - requires external CAN transceiver and additional level-shifting for mixed-voltage systems. | Choose for space-constrained PCBs where CAN is optional and BOM cost reduction outweighs peripheral flexibility. |
Compared with S9KEAZN8ACFKR, S9KEAZ128AMLK offers scalable memory for evolving firmware, while MKE02Z64VLC2 trades pin count and integrated CAN for smaller footprint and lower unit cost - both require validation of thermal derating and EMC performance in target environments.
Availability
S9KEAZN8ACFKR is available at Aetrix Electronics and suitable for engine control units, body electronics modules, smart sensor nodes, and industrial motor starters requiring stable component supply across automotive production lifecycles.
Supply support for S9KEAZN8ACFKR 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in Arm-based microcontrollers and automotive-grade reliability.
The KEA family targets cost-optimized, functionally safe automotive applications - S9KEAZN8ACFKR delivers M0+ performance with integrated CAN, low-power timers, and robust analog peripherals for entry-tier vehicle subsystems.
FAQ
What is the maximum operating frequency of the S9KEAZN8ACFKR?
The S9KEAZN8ACFKR operates at up to 48 MHz using its internal FLL with factory-trimmed 37.5 kHz reference or external crystal input. This frequency is fully supported across the −40 to +125 °C temperature range and 2.7–5.5 V supply, enabling deterministic real-time control in automotive environments. The S9KEAZN8ACFKR achieves this without external PLL components, reducing BOM count and layout complexity.
Does the S9KEAZN8ACFKR include a CAN controller?
Yes, the S9KEAZN8ACFKR integrates a fully compliant ISO 11898-1 MSCAN module supporting CAN 2.0B protocol with message buffering, error handling, and automatic retransmission. It requires only an external CAN transceiver (e.g., TJA1042) to complete the physical layer - no additional protocol accelerator or software stack is needed for standard vehicle network communication.
What package type and pin count does the S9KEAZN8ACFKR use?
The S9KEAZN8ACFKR is supplied in an 80-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch), matching the mechanical and thermal profile of other KEA128-family devices like S9KEA128P80M48SF0. This package supports full GPIO, peripheral, and debug pinout access while maintaining compatibility with standard automotive PCB assembly processes and JEDEC MSL-3 handling requirements.
Can the S9KEAZN8ACFKR operate in low-power Stop mode with analog peripherals active?
Yes, the S9KEAZN8ACFKR supports Stop mode with the 12-bit SAR ADC and analog comparators (ACMP) enabled - achieving typical current draw of 82 µA (ADC active) or 12 µA (ACMP active) at 3 V. This capability allows continuous battery monitoring or sensor wake-up triggering without CPU intervention, extending operational life in always-on automotive modules.
Is the S9KEAZN8ACFKR automotive-qualified?
Yes, the S9KEAZN8ACFKR carries S-prefix qualification per NXP's part numbering scheme, indicating full AEC-Q100 Grade 1 (−40 to +125 °C) compliance. It includes automotive-specific features such as enhanced ESD robustness (±6 kV HBM), latch-up immunity (±100 mA), and validated thermal performance in 80-pin LQFP - meeting OEM requirements for under-hood and chassis-mounted control units.
S9KEAZN8ACFKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 24-VFQFN Exposed Pad
- Series:
- Kinetis KEA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, LINbus, SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 22
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9KEAZN8ACFKR FAQ
1.How can I place an order for S9KEAZN8ACFKR through Aetrix?
Please submit a Request for Quotation (RFQ) for S9KEAZN8ACFKR 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 S9KEAZN8ACFKR reliable?
The price and inventory of S9KEAZN8ACFKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9KEAZN8ACFKR is usually 5 days.
3.What payment methods are accepted for S9KEAZN8ACFKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9KEAZN8ACFKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9KEAZN8ACFKR?
S9KEAZN8ACFKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9KEAZN8ACFKR 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 S9KEAZN8ACFKR?
For technical support, including S9KEAZN8ACFKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9KEAZN8ACFKR requirements.
6.How does Aetrix verify that S9KEAZN8ACFKR is sourced from the original manufacturer or authorized distributors?
All S9KEAZN8ACFKR 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 S9KEAZN8ACFKR meets industry standards.
7.What is the process for return or replacement of S9KEAZN8ACFKR?
All S9KEAZN8ACFKR units undergo pre-shipment inspection (PSI). If there is an issue with S9KEAZN8ACFKR, 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 S9KEAZN8ACFKR part is unused and in its original packaging.
Return procedure for S9KEAZN8ACFKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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