NXP Semiconductors S9KEAZ128AMLHR
- Part No.:
- S9KEAZ128AMLHR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
S9KEAZ128AMLHR.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,201
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Product details
Overview
S9KEAZ128AMLHR from NXP Semiconductors (formerly Freescale) is a 32-bit Kinetis E-series ARM Cortex-M0+ microcontroller with 128 KB flash, 16 KB SRAM, and integrated 12-bit ADC, 32 MHz max CPU frequency, and LQFP-64 package - designed for cost-sensitive industrial control and motor management applications.
For engineers reviewing the S9KEAZ128AMLHR datasheet, S9KEAZ128AMLHR pinout, S9KEAZ128AMLHR application, or S9KEAZ128AMLHR equivalent, key selection criteria include its single-cycle GPIO, low-power run/stop modes, on-chip voltage regulator, and compatibility with Kinetis SDK v2.x and MCUXpresso IDE toolchain.
Technical Context
The S9KEAZ128AMLHR implements an ARM Cortex-M0+ core with Thumb-2 instruction set, supporting up to 32 MHz operation via internal FLL or external crystal. It integrates a 12-bit SAR ADC with 16 channels, two 16-bit timers (TPM), one 32-bit low-power timer (LPTMR), and a programmable CRC module.
Power management includes multiple low-leakage stop modes (VLPS, LLS, VLLS), a 3.3 V ±10% supply range, and internal DC-DC converter bypass capability. Peripheral bridge logic enables simultaneous access to flash and RAM without bus contention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0+, 32-bit, Thumb-2 ISA, no FPU |
| Max Clock Frequency | 32 MHz - supports real-time deterministic response in motor commutation loops |
| Flash Memory | 128 KB - sufficient for dual-bank firmware updates and bootloader + application partitioning |
| SRAM | 16 KB - accommodates stack, heap, and peripheral buffers for sensor fusion or PID control |
| ADC Resolution & Channels | 12-bit SAR, 16 input channels - enables simultaneous sampling of current, voltage, temperature, and position sensors |
| Package | LQFP-64, 10 mm × 10 mm, 0.5 mm pitch - compatible with standard PCB reflow profiles (MSL3, 260°C peak) |
| Supply Voltage Range | 2.7–3.6 V - operates directly from industrial 3.3 V rails without external LDO |
Pinout & Package
LQFP-64 (10 × 10 × 1.4 mm, 0.5 mm pitch), RoHS-compliant, e3 matte tin plating, MSL Level 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O domain decoupling; supports 3.3 V ±10% operation |
| PTA0–PTA31 | GPIO port pins | Configurable as digital I/O, interrupt sources, or peripheral multiplexed functions (e.g., TPM, UART, I²C) |
| ADC0_SE0–ADC0_SE15 | Analog input channels | 16 dedicated analog inputs mapped to internal 12-bit SAR ADC; support differential and single-ended acquisition |
| RTC_CLKIN, EXTAL, XTAL | Oscillator terminals | Supports 32.768 kHz RTC crystal and 4–24 MHz main crystal; internal FLL enables clock generation without external oscillator |
| RESET_b | Active-low reset input | Asynchronous reset with internal pull-up; accepts 100 ns minimum pulse width for reliable system initialization |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle GPIO toggle | Enables precise timing-critical outputs (e.g., PWM dead-time insertion or encoder index pulse generation) |
| Low-power stop modes | VLPS mode draws <1.5 µA - extends battery life in portable HMI or wireless sensor nodes |
| On-chip voltage regulator | Internal LDO supplies core logic at 1.2 V; eliminates need for external regulator in space-constrained designs |
| CRC accelerator | Hardware CRC-32 engine reduces firmware validation overhead by >95% vs. software implementation |
| Kinetis SDK v2.x support | Pre-validated drivers, middleware, and example projects accelerate development of motor control and industrial sensing applications |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Brushless DC (BLDC) motor commutation in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Real-time execution of six-step commutation logic, ADC sampling of phase currents, and PWM output generation with <1 µs jitter. Use Value: Integrated 32 MHz clock, single-cycle GPIO, and 12-bit ADC enable closed-loop control without external timing ICs or signal conditioners. | Use Scenario: Battery-powered environmental monitoring node measuring temperature, humidity, and CO₂. IC Role / Device Role / Timing Role: Low-power sensor interface hub managing I²C sensors, wake-on-event interrupts, and periodic BLE packet preparation. Use Value: VLPS mode (<1.5 µA) and RTC-triggered wake-up reduce average current to <5 µA, extending 2xAA battery life beyond 5 years. |
| Programmable Logic Controller (PLC) I/O Module | Medical Diagnostic Handheld |
Use Scenario: Digital input/output expansion module for DIN-rail mounted PLCs handling 24 V industrial signals. IC Role / Device Role / Timing Role: Isolation interface controller with configurable debounce, status reporting, and watchdog supervision. Use Value: 16 GPIOs with programmable pull-ups/downs and edge-triggered interrupts simplify discrete I/O conditioning and reduce external component count. | Use Scenario: Portable blood glucose meter requiring accurate analog front-end and secure firmware update capability. IC Role / Device Role / Timing Role: Precision analog acquisition engine with 12-bit ADC, internal reference, and encrypted boot loader. Use Value: On-chip 1.2 V LDO and calibrated ADC reference minimize measurement drift across 0–50°C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| KEAZ128MLH | Same die, identical peripherals and memory; differs only in tape-and-reel packaging (no tray option) | No functional difference; suitable for automated SMT assembly but not manual prototyping | Select KEAZ128MLH for high-volume production; S9KEAZ128AMLHR remains preferred for evaluation and small-batch builds |
| MKE02Z64VLD4 | ARM Cortex-M0+, 64 KB flash, 8 KB SRAM, same LQFP-64 package but lacks internal DC-DC bypass support | Lower memory and no voltage regulator integration limit use in compact power-constrained systems | Choose MKE02Z64VLD4 only when firmware size <64 KB and external LDO is acceptable |
Compared with KEAZ128MLH and MKE02Z64VLD4, the S9KEAZ128AMLHR provides full 128 KB flash, integrated voltage regulation, and tray packaging - making it optimal for design-in flexibility, long-term BOM stability, and mixed-sourcing scenarios where both manual and automated assembly occur.
Availability
S9KEAZ128AMLHR is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and medical handheld devices requiring stable component supply and long lifecycle support.
Supply support for S9KEAZ128AMLHR 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, IoT, and mobile applications.
The Kinetis E-series - including the S9KEAZ128AMLHR - was engineered for cost-sensitive, low-power industrial control with emphasis on robustness, code compatibility across ARM Cortex-M0+/M4, and seamless migration from legacy 8/16-bit platforms.
FAQ
What is the maximum operating frequency of the S9KEAZ128AMLHR?
The S9KEAZ128AMLHR operates at a maximum CPU frequency of 32 MHz, achieved using its internal Fractional PLL (FLL) or external crystal oscillator. This frequency is fully supported across the entire specified temperature and voltage range (–40°C to +105°C, 2.7–3.6 V). The S9KEAZ128AMLHR maintains deterministic instruction timing at this speed, enabling real-time control loops in motor drive and sensor processing applications.
Does the S9KEAZ128AMLHR include an internal voltage regulator?
Yes, the S9KEAZ128AMLHR integrates an internal linear regulator that supplies the core logic at 1.2 V from the main 3.3 V supply. This eliminates the need for an external LDO in most designs, reducing BOM count and PCB area. The regulator is enabled by default at reset and supports bypass mode if an external 1.2 V rail is provided - a feature confirmed in the S9KEAZ128AMLHR reference manual section 4.3.2.
What debug interface does the S9KEAZ128AMLHR support?
The S9KEAZ128AMLHR supports SWD (Serial Wire Debug) via dedicated SWDIO and SWCLK pins, compliant with ARM CoreSight standards. It does not support JTAG. Full debug functionality - including halt, step, memory inspection, and flash programming - is accessible through NXP's MCUXpresso IDE and compatible probes (e.g., LPC-Link2, SEGGER J-Link). This interface is active regardless of boot mode configuration.
Is the S9KEAZ128AMLHR pin-compatible with other Kinetis E-series MCUs?
The S9KEAZ128AMLHR shares the LQFP-64 footprint and core peripheral mapping with KEAZ128MLH and S9KEAZ64AMLHR, but pin functions differ for certain peripherals (e.g., ADC channel assignments and TPM channel routing). While mechanical compatibility exists, electrical and functional pin mapping is not guaranteed across variants - always verify against the S9KEAZ128AMLHR-specific pin assignment table before board reuse.
What is the RoHS and halogen-free status of the S9KEAZ128AMLHR?
The S9KEAZ128AMLHR is RoHS-compliant per EU Directive 2011/65/EU and halogen-free per JEDEC JS709A. Its lead-free finish uses matte tin (e3 plating), and all homogeneous materials contain less than 1000 ppm lead, mercury, hexavalent chromium, PBB, and PBDE, and less than 100 ppm cadmium. This compliance is certified in Freescale's IPC-1752 declaration dated 2017-04-06.
S9KEAZ128AMLHR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- 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:
- CANbus, I2C, LINbus, SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 58
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9KEAZ128AMLHR FAQ
1.How can I place an order for S9KEAZ128AMLHR through Aetrix?
Please submit a Request for Quotation (RFQ) for S9KEAZ128AMLHR 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 S9KEAZ128AMLHR reliable?
The price and inventory of S9KEAZ128AMLHR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9KEAZ128AMLHR is usually 5 days.
3.What payment methods are accepted for S9KEAZ128AMLHR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9KEAZ128AMLHR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9KEAZ128AMLHR?
S9KEAZ128AMLHR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9KEAZ128AMLHR 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 S9KEAZ128AMLHR?
For technical support, including S9KEAZ128AMLHR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9KEAZ128AMLHR requirements.
6.How does Aetrix verify that S9KEAZ128AMLHR is sourced from the original manufacturer or authorized distributors?
All S9KEAZ128AMLHR 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 S9KEAZ128AMLHR meets industry standards.
7.What is the process for return or replacement of S9KEAZ128AMLHR?
All S9KEAZ128AMLHR units undergo pre-shipment inspection (PSI). If there is an issue with S9KEAZ128AMLHR, 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 S9KEAZ128AMLHR part is unused and in its original packaging.
Return procedure for S9KEAZ128AMLHR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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