NXP Semiconductors S9KEAZ64AVLHR

Overview

S9KEAZ64AVLHR from NXP Semiconductors is an automotive-qualified Arm® Cortex-M0+ microcontroller with 64 KB flash, 8 KB RAM, and operation up to 48 MHz-designed for real-time control in engine management, body electronics, and powertrain subsystems.

For engineers reviewing the S9KEAZ64AVLHR datasheet, S9KEAZ64AVLHR pinout, S9KEAZ64AVLHR application, or S9KEAZ64AVLHR equivalent, this page delivers verified electrical specs, thermal ratings, low-power mode behavior, and validated alternative parts for automotive-grade design-in and long-term supply assurance.

Technical Context

The S9KEAZ64AVLHR implements a single-cycle 32-bit x 32-bit multiplier and single-cycle I/O port access to support deterministic real-time response in safety-critical automotive functions. Its internal clock system integrates a factory-trimmed 37.5 kHz IRC for 48 MHz system clock generation and supports external crystals from 32.768 kHz to 24 MHz.

It features three power modes (Run, Wait, Stop), with Stop-mode current as low as 1.9 µA at 3 V (–40 to 125°C), plus integrated LVD with four selectable falling thresholds (2.56–4.8 V) and hysteresis for robust brown-out handling in noisy vehicle electrical environments.

Key Specifications

Pinout & Package

64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3 - suitable for automated SMT assembly and reflow per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S9KEAZ64AVLHR, the S9KEAZ128AVLHR offers scalable code density without layout changes, while MKE02Z64VQH2 trades automotive temperature range and CAN capability for lower unit cost in less demanding environments.

Availability

S9KEAZ64AVLHR is available at Aetrix Electronics and suitable for automotive engine control, body electronics, and electric power steering systems requiring stable component supply across multi-year production cycles.

Supply support for S9KEAZ64AVLHR 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 automotive, industrial, and IoT solutions, with deep expertise in functional safety and ASIL-certified microcontrollers.

The KEAZ series targets cost-optimized, high-reliability automotive applications-delivering Cortex-M0+ performance with integrated CAN, robust low-power modes, and AEC-Q100 Grade 1 qualification.

FAQ

What is the maximum operating frequency and core type of the S9KEAZ64AVLHR?

The S9KEAZ64AVLHR features an Arm® Cortex-M0+ core with a maximum system clock frequency of 48 MHz and bus clock up to 24 MHz. It includes a single-cycle 32-bit x 32-bit hardware multiplier and single-cycle I/O port access-enabling deterministic real-time execution for automotive control loops. The S9KEAZ64AVLHR achieves this using its internal FLL with factory-trimmed 37.5 kHz reference or external crystal sources.

Does the S9KEAZ64AVLHR support CAN communication, and what version is implemented?

Yes, the S9KEAZ64AVLHR integrates a fully compliant MSCAN module supporting CAN 2.0B protocol with 32 message buffers, programmable acceptance filtering, and automatic retransmission. It meets ISO 11898-1 physical layer requirements and operates across the full –40 to 125°C temperature range. The S9KEAZ64AVLHR does not require external CAN transceivers for basic node functionality-only a compliant PHY driver is needed for bus coupling.

What is the lowest power consumption mode of the S9KEAZ64AVLHR, and what peripherals remain active?

The S9KEAZ64AVLHR achieves 1.9 µA typical current in Stop mode at 3 V and –40 to 125°C, with only the 1 kHz LPO clock active. In this state, the ADC, ACMP, and LVD modules can be configured to operate autonomously and wake the core on event-enabling battery-backed monitoring in always-on vehicle modules. The S9KEAZ64AVLHR retains full RAM content and register states during Stop mode entry/exit.

Is the S9KEAZ64AVLHR qualified for automotive use, and what is its AEC-Q100 grade?

Yes, the S9KEAZ64AVLHR is AEC-Q100 qualified to Grade 1 (–40 to 125°C), with automotive-specific testing for ESD (±6 kV HBM), latch-up (±100 mA), and thermal cycling. Its part number prefix "S" denotes automotive qualification, and it includes built-in features such as programmable LVD trip points, CRC hardware, and BME for safe bit manipulation-supporting ASIL-B software development per ISO 26262.

What debug interface does the S9KEAZ64AVLHR provide, and what are its key electrical limits?

The S9KEAZ64AVLHR uses Serial Wire Debug (SWD) with two dedicated pins: SWD_DIO and SWD_CLK. It supports debug clock frequencies up to 24 MHz, with input setup time ≥10 ns and hold time ≥3 ns relative to SWD_CLK rise. The interface operates across the full 2.7–5.5 V supply range and requires no external pull-ups. The S9KEAZ64AVLHR also supports SWD-based flash programming and real-time variable inspection during active execution.