NXP Semiconductors S9KEAZN16AMLC

Overview

S9KEAZN16AMLC from NXP Semiconductors is an automotive-qualified Arm® Cortex-M0+ microcontroller with 16 KB flash, 4 KB RAM, and 256 B EEPROM, operating from 2.7–5.5 V across –40 to 125°C ambient. It integrates a 12-bit SAR ADC, dual analog comparators with 6-bit DACs, three UARTs, two SPIs, one I²C, six FTM timer channels, and supports low-power Stop mode with 41 µA typical current in 32-pin LQFP package - deployed in engine control modules, body electronics, and industrial sensor nodes.

For engineers reviewing the S9KEAZN16AMLC datasheet, S9KEAZN16AMLC pinout, S9KEAZN16AMLC application, or S9KEAZN16AMLC equivalent, this page delivers verified technical context, validated package mapping (32-pin LQFP), confirmed peripheral timing (20 MHz bus clock, 40 MHz core), real-world low-power behavior (41 µA Stop mode), and two rigorously cross-checked alternative parts for functional migration paths.

Technical Context

The S9KEAZN16AMLC implements an Arm Cortex-M0+ core with single-cycle 32×32-bit multiply and single-cycle I/O access, paired with an internal clock system (ICS) featuring factory-trimmed 31.25 kHz reference for 40 MHz system clock generation. Its oscillator supports 32.768 kHz crystals or 4–20 MHz resonators in low-power or high-gain modes.

System-level integration includes Power Management Controller (PMC) with Run/Wait/Stop modes, independent 1 kHz low-power oscillator (LPO), programmable cyclic redundancy check (CRC), serial wire debug (SWD), and bit manipulation engine (BME). Analog subsystem comprises one 16-channel 12-bit SAR ADC with Stop-mode operation and hardware trigger support, plus two ACMP modules each with 6-bit DAC and programmable reference input.

Key Specifications

Pinout & Package

Package: 32-pin LQFP (7 mm × 7 mm), RoHS-compliant, moisture sensitivity level (MSL) 3, lead-free reflow profile compatible (peak 260°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S9KEAZN16AMLC, S9KEAZN32AMLC offers direct scalability within the same footprint and thermal envelope, while MKE02Z32VLC2 trades automotive-grade temperature resilience and nonvolatile storage for lower unit cost in less demanding environments - enabling tiered design reuse across vehicle domains.

Availability

S9KEAZN16AMLC is available at Aetrix Electronics and suitable for engine control units, body electronics modules, and industrial sensor nodes requiring stable component supply across automotive production lifecycles.

Supply support for S9KEAZN16AMLC 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 qualification.

The S9KEAZN16AMLC belongs to NXP's Kinetis KEA family - designed specifically for cost-optimized, AEC-Q100-qualified automotive applications requiring robust real-time control, integrated analog, and ultra-low-power operation in harsh environments.

FAQ

What is the maximum operating frequency of the S9KEAZN16AMLC core and bus?

The S9KEAZN16AMLC features an Arm Cortex-M0+ core rated for up to 40 MHz and a bus clock rated for up to 20 MHz. These frequencies are achievable across the full –40 to 125°C temperature range when supplied with 2.7–5.5 V, as validated in the KEA64 Sub-Family Data Sheet Rev. 8. The internal clock system (ICS) uses a factory-trimmed 31.25 kHz reference to generate the 40 MHz system clock via its FLL.

Does the S9KEAZN16AMLC support debugging during development?

Yes, the S9KEAZN16AMLC includes a Serial Wire Debug (SWD) interface compliant with ARM CoreSight standards. It supports full debug functionality - including breakpoints, watchpoints, register inspection, flash programming, and real-time variable monitoring - at up to 20 MHz SWD_CLK frequency. The SWD_DIO and SWD_CLK pins are dedicated and do not share with GPIO functions.

What is the minimum current consumption of the S9KEAZN16AMLC in Stop mode?

The S9KEAZN16AMLC achieves 41 µA typical Stop mode current in the 32-pin LQFP package (S9KEAZN16AMLC), measured at 3 V and –40 to 125°C ambient. This value assumes only the 1 kHz LPO clock active; adding ADC, ACMP, or LVD modules increases current by quantified adders (e.g., +41 µA for ADC in low-power configuration).

Is the S9KEAZN16AMLC qualified for automotive applications?

Yes, the S9KEAZN16AMLC is automotive-qualified with "S" prefix indicating AEC-Q100 Grade 1 compliance (–40 to 125°C ambient). It meets stringent reliability, ESD (±6 kV HBM), latch-up (±100 mA), and thermal performance requirements defined for under-hood and chassis applications, as documented in the official NXP KEA64 Sub-Family Data Sheet.

How much flash, RAM, and EEPROM does the S9KEAZN16AMLC include?

The S9KEAZN16AMLC integrates 16 KB of on-chip flash memory (rated for 10,000 write/erase cycles), 4 KB of SRAM, and 256 B of EEPROM (rated for 50,000 write/erase cycles). All memory blocks are accessible across the full operating voltage (2.7–5.5 V) and temperature (–40 to 125°C) range, with flash supporting in-application programming and EEPROM enabling byte-level updates without erasing adjacent locations.