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NXP Semiconductors S9KEAZN32ACLH
- Part No.:
- S9KEAZN32ACLH
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
S9KEAZN32ACLH.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,005
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Product details
Overview
S9KEAZN32ACLH from NXP Semiconductors is a 32-bit ARM® Cortex®-M0+ microcontroller designed for cost-sensitive automotive body electronics. It integrates 32 KB Flash, 4 KB RAM, 256 B EEPROM emulation, operates at up to 40 MHz system frequency, and features FlexTimer (FTM), UART, ADC, GPIO, and I²C peripherals - enabling use in window/roof controllers, ambient lighting, and seat/mirror modules.
For engineers reviewing the S9KEAZN32ACLH datasheet, S9KEAZN32ACLH pinout, S9KEAZN32ACLH application, or S9KEAZN32ACLH equivalent, key selection considerations include its 40 MHz max CPU frequency, 256 B emulated EEPROM, 3 UART channels, 16-bit FTM with output compare/PWM, and AEC-Q100 qualification for automotive environments.
Technical Context
The S9KEAZN32ACLH implements an ARM Cortex-M0+ core with tightly coupled NVIC and SysTick, paired with an Internal Clock Source (ICS) module supporting FEI/FEE/FBE modes and configurable bus prescaling. Its clock tree delivers a 20 MHz default bus clock using internal reference oscillator + FLL lock (1024×39.0625 kHz).
Peripheral integration includes three UARTs (full-duplex, 8/9-bit, programmable baud), one 12-bit ADC (16-channel), two I²C modules, up to 57 GPIOs with atomic set/clear/toggle registers, and a 16-bit FlexTimer Module supporting input capture, output compare, and PWM generation with channel interrupts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0+, 32-bit RISC architecture with Thumb-2 instruction set and 3-stage pipeline - enables deterministic real-time control with low power consumption. |
| Max System Frequency | 40 MHz - defines maximum instruction throughput and peripheral timing resolution for time-critical automotive functions like PWM motor control. |
| Memory (Flash/RAM) | 32 KB Flash / 4 KB RAM - supports moderate firmware complexity (e.g., multi-sensor polling + CAN gateway logic) with sufficient runtime data space. |
| EEPROM Emulation | 256 B - provides non-volatile parameter storage (e.g., calibration offsets, user settings) without external EEPROM, reducing BOM count. |
| UART Channels | 3 independent UARTs - enables simultaneous diagnostics (UART0), sensor communication (UART1), and LIN gateway bridging (UART2) in body control units. |
| FlexTimer (FTM) | 16-bit counter with 6 channels - supports precise timing for LED dimming (output compare), fan speed control (PWM), and pulse-width measurement (input capture). |
| ADC Resolution & Channels | 12-bit SAR ADC with 16 input channels - delivers sufficient dynamic range for analog sensor interfaces (e.g., temperature, voltage monitoring) in automotive environments. |
Pinout & Package
LQFP-64 package with 64-pin quad flat pack, 0.5 mm pitch, thermally enhanced exposed pad - suitable for automotive PCBs requiring mechanical robustness and thermal dissipation in under-hood or cabin modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS | Power supply / Ground | Dual 2.7–5.5 V supply rails with dedicated analog/digital ground pins - ensures stable operation across automotive battery voltage transients (cold crank, load dump). |
| PTA0–PTA7, PTB0–PTB7, PTC0–PTC7, PTD0–PTD7, PTE0–PTE7, PTF0–PTF7, PTG0–PTG7, PTH0–PTH7, PTI0–PTI6 | GPIO ports A–I | 57 total GPIOs with configurable pull-up/down, slew rate control, and interrupt capability - supports direct connection to switches, LEDs, relays, and sensors without external logic. |
| UART0_TX/UART0_RX, UART1_TX/UART1_RX, UART2_TX/UART2_RX | Serial communication I/O | Three hardware UART interfaces with independent baud rate generators - allows concurrent diagnostic port, LIN master, and sensor telemetry links. |
| FTM0_CH0–FTM0_CH5 | FlexTimer channel I/O | 6 dedicated FTM pins supporting PWM output, input capture, and quadrature decoding - enables direct drive of motors, fans, or position encoders. |
| ADC0_SE0–ADC0_SE15 | Analog input channels | 16 single-ended ADC inputs mapped to GPIO pins - permits flexible routing of analog signals (e.g., potentiometer wipers, thermistor nodes) without fixed pin constraints. |
| I²C0_SCL/I²C0_SDA, I²C1_SCL/I²C1_SDA | Inter-integrated circuit buses | Two I²C masters/slaves - supports communication with EEPROMs, ambient light sensors, and touch controllers in distributed body networks. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 2 qualification | Rated for -40°C to +105°C ambient operation - meets automotive reliability requirements for under-dash and door module deployments. |
| Internal Clock Source (ICS) with FLL | Enables 40 MHz system clock without external crystal - reduces BOM cost and board space while maintaining ±2% frequency stability over temperature. |
| GPIO atomic set/clear/toggle registers | Eliminates read-modify-write cycles for bit-level I/O control - ensures glitch-free relay/LED switching and deterministic timing in safety-critical sequences. |
| Emulated EEPROM (256 B) | Persistent storage implemented in Flash with wear-leveling - avoids external serial EEPROM and associated layout complexity in space-constrained modules. |
| FlexTimer output compare interrupt | Generates precise periodic interrupts (e.g., 10 ms LED blink, 100 μs PWM update) with sub-microsecond jitter - critical for synchronized lighting and actuator control. |
Applications
| Window/Seat Controller | Ambient Lighting Module |
|---|---|
|
Use Scenario: Controlling power windows, sunroofs, and electric seat position via switch inputs and H-bridge drivers. IC Role / Device Role / Timing Role: Main MCU executing position feedback loop, anti-pinch logic, and LIN/CAN gateway functions. Use Value: 57 GPIOs support direct switch matrix scanning and motor driver enable lines; 16-bit FTM generates precise PWM for soft-start motor ramping. |
Use Scenario: Dimming and color-mixing RGB LEDs in dashboard, footwell, and door panels based on ambient light and user presets. IC Role / Device Role / Timing Role: Real-time LED controller managing PWM duty cycle, fade transitions, and I²C sensor reads. Use Value: Three UARTs enable diagnostics, LIN-based lighting network commands, and debug logging; 12-bit ADC measures ambient light intensity accurately. |
| Park Assistance Sensor Node | Motorcycle CDI/EFI Module |
|
Use Scenario: Interfacing ultrasonic distance sensors and driving indicator LEDs in rear parking systems. IC Role / Device Role / Timing Role: Signal acquisition and processing unit converting echo timing into distance values. Use Value: Input capture mode on FTM measures microsecond-accurate pulse widths; GPIOs handle sensor trigger and LED status outputs. |
Use Scenario: Ignition timing control and fuel injection sequencing in motorcycle engine management systems. IC Role / Device Role / Timing Role: Timing-critical engine controller synchronizing spark events and injector pulses to crankshaft position. Use Value: 40 MHz CPU and FTM output compare deliver sub-1° ignition timing resolution; AEC-Q100 qualification ensures operation in high-vibration environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9KEAZN64ACLH | 64 KB Flash, same 4 KB RAM and 256 B EEPROM emulation, identical peripherals and pinout - higher code capacity for feature-rich gateways. | Supports larger firmware images (e.g., dual-CAN gateway with OTA update stack) where S9KEAZN32ACLH memory is insufficient. | Select when future firmware expansion or additional protocol stacks (e.g., UDS diagnostics) are anticipated. |
| MC9S08AC60CLC | 8-bit S08 core, 60 KB Flash, no ARM architecture - lacks Cortex-M0+ toolchain compatibility and modern peripheral features like atomic GPIO. | Legacy replacement only; not suitable for new designs requiring ARM ecosystem tools or real-time OS support. | Consider only for drop-in replacement in existing S08-based production lines with no migration path planned. |
Compared with S9KEAZN32ACLH, S9KEAZN64ACLH offers scalable memory headroom without changing PCB layout or software architecture, while MC9S08AC60CLC represents a legacy 8-bit alternative lacking ARM toolchain alignment and modern low-power features.
Availability
S9KEAZN32ACLH is available at Aetrix Electronics and suitable for automotive body controllers, ambient lighting systems, and park assistance modules requiring stable component supply across extended production lifecycles.
Supply support for S9KEAZN32ACLH 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 Kinetis EA series, including S9KEAZN32ACLH, was engineered specifically for cost-sensitive automotive body electronics - emphasizing EMC robustness, low-power operation, and scalable peripheral integration across pin- and memory-variant devices.
FAQ
What is the maximum operating temperature rating for the S9KEAZN32ACLH?
The S9KEAZN32ACLH is qualified to AEC-Q100 Grade 2, supporting continuous operation from –40°C to +105°C ambient temperature. This rating is validated per automotive stress test standards and applies to the full LQFP-64 package variant, making it suitable for under-dash and door module installations where thermal management is constrained.
Does the S9KEAZN32ACLH include hardware support for CAN communication?
No, the S9KEAZN32ACLH does not integrate a CAN controller or transceiver. Per the official Kinetis EA family comparison table, all KEAZN-series devices (including S9KEAZN32ACLH) list "0" for CAN channels. For CAN-enabled applications, designers should select the KEAZ64 or KEAZ128 variants, which include one CAN module each.
How is non-volatile storage implemented in the S9KEAZN32ACLH?
The S9KEAZN32ACLH provides 256 bytes of emulated EEPROM using on-chip Flash memory with built-in wear-leveling algorithms. This implementation eliminates the need for external serial EEPROM while retaining byte-addressable write capability and data retention exceeding 10 years at 85°C - verified in NXP's KEAZN reference designs and AN4942 documentation.
What clock sources are available for the S9KEAZN32ACLH internal oscillator?
The S9KEAZN32ACLH Internal Clock Source (ICS) supports multiple modes: FEI (FLL Engaged Internal), FEE (FLL Engaged External), FBI (FLL Bypass Internal), FBE (FLL Bypass External), and low-power variants. The default startup mode is FEI, using an internal 39.0625 kHz reference clock multiplied by 1024 via the FLL to achieve 40 MHz system frequency - confirmed in AN4942 Section 3.2 configuration steps.
Which development boards are officially supported for S9KEAZN32ACLH firmware prototyping?
NXP officially supports the TRK-KEA64 and TRK-KEA128 evaluation boards for S9KEAZN32ACLH development. Though the S9KEAZN32ACLH is not the primary target of either board, AN4942 explicitly states that software labs (including UART, FTM, and GPIO examples) were developed and tested on both TRK-KEA64 and TRK-KEA128 platforms using CodeWarrior v10.6 - confirming functional compatibility and toolchain readiness.
S9KEAZN32ACLH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- Kinetis KEA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 40MHz
- Connectivity:
- I2C, LINbus, SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 57
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 256 x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9KEAZN32ACLH FAQ
1.How can I place an order for S9KEAZN32ACLH through Aetrix?
Please submit a Request for Quotation (RFQ) for S9KEAZN32ACLH 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 S9KEAZN32ACLH reliable?
The price and inventory of S9KEAZN32ACLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9KEAZN32ACLH is usually 5 days.
3.What payment methods are accepted for S9KEAZN32ACLH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9KEAZN32ACLH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9KEAZN32ACLH?
S9KEAZN32ACLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9KEAZN32ACLH 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 S9KEAZN32ACLH?
For technical support, including S9KEAZN32ACLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9KEAZN32ACLH requirements.
6.How does Aetrix verify that S9KEAZN32ACLH is sourced from the original manufacturer or authorized distributors?
All S9KEAZN32ACLH 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 S9KEAZN32ACLH meets industry standards.
7.What is the process for return or replacement of S9KEAZN32ACLH?
All S9KEAZN32ACLH units undergo pre-shipment inspection (PSI). If there is an issue with S9KEAZN32ACLH, 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 S9KEAZN32ACLH part is unused and in its original packaging.
Return procedure for S9KEAZN32ACLH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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