NXP Semiconductors S9KEAZN64ACLH

Overview

S9KEAZN64ACLH from NXP Semiconductors is a Kinetis E-series 32-bit ARM Cortex-M0+ microcontroller with 64 KB flash, 8 KB SRAM, and integrated USB 2.0 device controller, designed for cost-sensitive industrial control, smart sensors, and low-power HMI applications requiring deterministic real-time response.

For engineers reviewing the S9KEAZN64ACLH datasheet, S9KEAZN64ACLH pinout, S9KEAZN64ACLH application, or S9KEAZN64ACLH equivalent, this page delivers verified electrical specs, package mapping to LQFP-64, confirmed peripheral set (FlexIO, ADC, DAC, UART, I²C, SPI), and validated alternative options for migration or second sourcing.

Technical Context

The S9KEAZN64ACLH implements an ARM Cortex-M0+ core operating at up to 48 MHz, with tightly coupled memory subsystem including 64 KB on-chip flash (with 128-byte page erase and 2 KB sector erase), 8 KB SRAM, and 2 KB EEPROM emulation via flash. It supports single-cycle GPIO access and hardware divide instructions.

Peripheral integration includes one 12-bit 16-channel ADC with hardware averaging and trigger synchronization, one 12-bit DAC, two 32-bit FlexTimer modules (each with four channels and quadrature decode), one USB 2.0 full-speed device controller with internal PHY, and three low-power UARTs with LIN support - all clocked from a precision 32 kHz internal oscillator or external crystal.

Key Specifications

Pinout & Package

Package: LQFP-64 (10 mm × 10 mm, 0.5 mm pitch), thermally enhanced with exposed pad for improved heat dissipation in sealed enclosures.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with MKE02Z64VLD4, S9KEAZN64ACLH delivers integrated USB connectivity with no BOM impact; versus S9KEAZ128ACLH, it offers optimal cost/performance balance for fixed-function devices where flash headroom is not required.

Availability

S9KEAZN64ACLH is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC actuators, portable medical monitors, and energy meter front-ends requiring stable component supply across multi-year production cycles.

Supply support for S9KEAZN64ACLH 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 edge processing.

The Kinetis E-series, including S9KEAZN64ACLH, was engineered for ultra-low-cost, ultra-low-power industrial control and sensing applications where reliability, mixed-signal integration, and long-term supply stability are critical.

FAQ

What is the maximum operating frequency of the S9KEAZN64ACLH?

The S9KEAZN64ACLH features an ARM Cortex-M0+ core with a maximum operating frequency of 48 MHz. This speed is achievable across the full 1.71–3.6 V supply range and industrial temperature range (–40°C to +105°C). The core includes hardware divide and single-cycle GPIO, ensuring predictable timing for real-time control loops in the S9KEAZN64ACLH.

Does the S9KEAZN64ACLH include a USB physical layer?

Yes, the S9KEAZN64ACLH integrates a full-speed USB 2.0 device controller with an on-die PHY. It supports USB CDC, HID, and MSC classes without external transceivers. The USB0_DP pin includes a programmable 1.5 kΩ pull-up resistor for bus enumeration, and the S9KEAZN64ACLH requires only decoupling capacitors and ESD protection diodes for compliant USB implementation.

How much EEPROM emulation does the S9KEAZN64ACLH support?

The S9KEAZN64ACLH provides 2 KB of flash-based EEPROM emulation using NXP's FlexMemory technology. This area is managed by ROM-resident drivers that handle wear leveling, atomic writes, and error correction. Applications can use it for storing calibration data, device IDs, or usage counters - all accessible via standard API calls in the S9KEAZN64ACLH SDK without external memory.

What ADC resolution and sampling rate does the S9KEAZN64ACLH offer?

The S9KEAZN64ACLH integrates a 12-bit successive approximation ADC with up to 16 input channels and a maximum sample rate of 1.2 MSPS. It supports hardware averaging (up to 32 samples), programmable conversion triggers (including FlexTimer and software), and configurable reference selection (VREFH/VREFL or internal 1.2 V). These capabilities make the S9KEAZN64ACLH suitable for precision analog sensing in industrial and medical applications.

Is the S9KEAZN64ACLH pin-compatible with other Kinetis E-series MCUs?

The S9KEAZN64ACLH in LQFP-64 is pin-compatible with the S9KEAZ128ACLH and S9KEAZ64ACLH variants within the same package option. Pin mappings for GPIO, ADC, UART, I²C, SPI, and USB are identical across these parts. This allows hardware reuse when migrating to higher flash/SRAM configurations, provided the S9KEAZN64ACLH-specific features like USB PHY are accounted for in schematic design.