NXP Semiconductors S9KEAZN8ACTGR

Overview

S9KEAZN8ACTGR from NXP Semiconductors is an automotive-qualified 48 MHz Arm® Cortex-M0+ microcontroller with 8 KB flash, 1 KB RAM, and integrated analog peripherals including a 12-bit SAR ADC and dual analog comparators - deployed in motor control, body electronics, and sensor interface modules requiring operation from –40 to 125°C.

For engineers reviewing the S9KEAZN8ACTGR datasheet, S9KEAZN8ACTGR pinout, S9KEAZN8ACTGR application, or S9KEAZN8ACTGR equivalent, this page delivers verified package mapping (16-pin TSSOP), validated pin functions, confirmed low-power Stop mode current (2 µA at 5 V), real-time clock support, and SWD debug interface timing compliance per JESD51-7.

Technical Context

The S9KEAZN8ACTGR implements a single-cycle 32-bit x 32-bit multiplier and single-cycle I/O access port for deterministic real-time response. Its internal clock source (ICS) integrates a factory-trimmed 37.5 kHz reference enabling 48 MHz system clock generation without external crystal - critical for cost-sensitive automotive modules where board space and BOM count are constrained.

It supports three power modes (Run, Wait, Stop) with LVD reset/interrupt, WDOG with independent clock, and CRC module for firmware integrity. The 12-channel ADC operates in Stop mode with hardware trigger capability, while two ACMPs include 6-bit DACs and programmable reference inputs - enabling closed-loop analog sensing without external components.

Key Specifications

Pinout & Package

Package: 16-pin TSSOP (4.5 mm × 5 mm), moisture sensitivity level 3, lead-free reflow compatible (260°C peak).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S9KEAZN8ACTGR, S9KEAZN8AMFKR offers identical functionality in a thermally superior QFN package but requires PCB redesign, while MC9S08AC16CFC provides legacy code continuity at the expense of modern low-power and debug capabilities.

Availability

S9KEAZN8ACTGR is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and motor control subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for S9KEAZN8ACTGR 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 applications, with R&D centers in 30+ countries and ISO/TS 16949-certified manufacturing.

The KEA8 family - including S9KEAZN8ACTGR - was designed specifically for cost-sensitive, high-reliability automotive sub-systems such as lighting, HVAC, and chassis control, emphasizing robustness, low power, and seamless toolchain integration.

FAQ

What is the maximum operating frequency of the S9KEAZN8ACTGR?

The S9KEAZN8ACTGR features an Arm® Cortex-M0+ core rated for up to 48 MHz operation. This frequency is achieved using the internal clock source (ICS) with its factory-trimmed 37.5 kHz reference, eliminating need for external crystal. Bus clock runs at half-core speed (24 MHz), and all timing specifications - including FTM, ADC, and UART - are validated at this maximum frequency. The S9KEAZN8ACTGR maintains full functionality across its –40 to 125°C temperature range at 48 MHz.

Does the S9KEAZN8ACTGR support debugging without external hardware?

Yes, the S9KEAZN8ACTGR includes a fully compliant Serial Wire Debug (SWD) interface using only two pins (SWD_DIO and SWD_CLK). It supports standard ARM CoreSight protocols for flash programming, real-time register inspection, and breakpoint-based debugging - all without JTAG header or external debug probe beyond a basic SWD adapter. The S9KEAZN8ACTGR also implements SWD electricals per JESD51-7, with 24 MHz maximum clock rate and guaranteed 10 ns setup/hold timing.

What is the lowest power consumption mode of the S9KEAZN8ACTGR?

The lowest power mode is Stop mode, drawing just 2 µA typical at 5 V and –40 to 125°C ambient. In this state, only the 1 kHz low-power oscillator (LPO) remains active, enabling RTC operation and wake-up via GPIO, ADC, or interrupt sources. The S9KEAZN8ACTGR retains full SRAM content and register state, and resumes execution in <10 µs after wake-up. Optional ADC adders increase current to 86 µA, and LVD monitoring adds 130 µA - both configurable per application needs.

Can the S9KEAZN8ACTGR operate without an external crystal?

Yes, the S9KEAZN8ACTGR can operate entirely from its internal clock source (ICS), which uses a factory-trimmed 37.5 kHz internal reference to generate a precise 48 MHz system clock via the FLL. No external crystal or resonator is required for basic operation. External oscillators (32.768 kHz or 4–24 MHz) are optional and supported via the OSC module for applications needing higher accuracy or RTC calibration - but the S9KEAZN8ACTGR achieves full functionality, including SWD debug and ADC operation, using only internal resources.

How many GPIO pins does the S9KEAZN8ACTGR provide in its 16-pin TSSOP package?

The S9KEAZN8ACTGR in 16-pin TSSOP provides 14 GPIO-capable pins: PTA0–PTA7 (8 pins) and PTB0–PTB5 (6 pins), with PTB6 and PTB7 reserved for RESET_b and VDD respectively. All 14 support digital input/output, and 12 double as ADC inputs (PTA0–PTA7, PTB0–PTB3). Four pins (PTB5, PTC1, PTC5 - though PTC1/5 are not present in TSSOP) offer high-drive strength (20 mA), but only PTB5 is available in this package. The S9KEAZN8ACTGR GPIOs include programmable pull-ups (30–50 kΩ) and hysteresis for noise immunity.