My Inquiry
My Account
NXP Semiconductors S9KEAZ128ACLK
- Part No.:
- S9KEAZ128ACLK
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
S9KEAZ128ACLK.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
S9KEAZ128ACLK from NXP Semiconductors is an automotive-qualified Arm® Cortex-M0+ microcontroller with 128 KB flash, 16 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 S9KEAZ128ACLK datasheet, S9KEAZ128ACLK pinout, S9KEAZ128ACLK application, or S9KEAZ128ACLK equivalent, this page delivers verified package mapping (80-pin LQFP), confirmed CAN interface support, validated low-power Stop mode current (≤160 µA), and exact oscillator configuration options including 32.768 kHz crystal and 4–24 MHz external resonator compatibility.
Technical Context
The S9KEAZ128ACLK integrates an internal clock system (ICS) with factory-trimmed 37.5 kHz reference enabling precise 48 MHz system clock generation via FLL, plus independent 1 kHz low-power oscillator (LPO) for RTC and Stop-mode timing. Its MSCAN module implements ISO 11898-1 compliant CAN 2.0B protocol with programmable bit timing and loopback self-test capability.
Power management includes three operational modes (Run/Wait/Stop), configurable low-voltage detection (LVD) with four selectable thresholds (2.56–4.8 V), and hardware CRC acceleration. The device supports Flash write at full 2.7–5.5 V supply range and retains RAM down to 2.0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm® Cortex-M0+, 48 MHz max - enables deterministic real-time response for motor control and sensor fusion. |
| Memory | 128 KB flash / 16 KB RAM - sufficient for AUTOSAR-compliant bootloaders and application code with data buffering. |
| Operating Voltage | 2.7–5.5 V - supports direct connection to 3.3 V or 5 V automotive domains without level-shifting. |
| Temperature Range | –40 to +125 °C - qualified for under-hood and transmission control unit (TCU) environments. |
| CAN Interface | MSCAN module - provides ISO 11898-1 compliant CAN 2.0B communication with error confinement and wake-on-CAN. |
| Low-Power Stop Mode | 160 µA typical - enables battery-conscious applications such as door modules and seat controllers with RTC wake-up. |
| ADC | 12-bit SAR, up to 16 channels, Stop-mode capable - allows continuous sensor monitoring (e.g., temperature, pressure) during sleep. |
Pinout & Package
Package: 80-pin LQFP (14 mm × 14 mm), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital power supply and ground | Multiple dedicated pins ensure stable core voltage distribution and noise isolation across high-speed logic and analog peripherals. |
| VDDA, VSSA | Analog power supply and ground | Separate analog domain enables clean ADC and ACMP operation with <7 pF input capacitance and 1.16 V bandgap reference. |
| EXTAL/XTAL | External crystal/resonator inputs | Supports 32.768 kHz watch crystal or 4–24 MHz resonator; internal feedback resistor and load capacitors eliminate external components in low-power mode. |
| CANH/CANL | CAN bus differential pair | Direct connection to ISO 11898-2 transceiver; integrated termination and filtering reduce EMI in automotive wiring harnesses. |
| PTA0–PTA31, PTB0–PTB31, etc. | GPIO with configurable drive strength | 71 total I/O pins include high-drive outputs (±10 mA) on selected pins and programmable pullups (30–60 kΩ) for robust switch sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle 32×32-bit multiplier | Enables fast PID loop execution (<1 µs per multiply) for closed-loop motor control without software overhead. |
| Aliased SRAM bitband region | Allows atomic bit-level read-modify-write operations on peripheral registers-critical for interrupt-safe flag management. |
| Programmable cyclic redundancy check (CRC) | Hardware-accelerated CRC-32 calculation reduces CPU load during firmware updates and CAN message validation. |
| Bit manipulation engine (BME) | Performs atomic bit set/clear/toggle on memory-mapped registers-eliminates race conditions in multi-interrupt systems. |
| FlexTimer/PWM modules | Three independent FTM units (6-channel + two 2-channel) support synchronized PWM generation for 3-phase inverter control. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Real-time fuel injection timing, spark advance, and knock detection using crank/cam sensor inputs. IC Role / Device Role / Timing Role: Primary MCU executing control algorithms with sub-microsecond timer resolution and CAN-based diagnostics. Use Value: 48 MHz core and hardware BME enable deterministic 10 µs control loops; MSCAN ensures seamless integration with OBD-II and powertrain networks. |
Use Scenario: Centralized lighting, window lift, mirror adjustment, and door lock actuation with LIN/CAN gateway functions. IC Role / Device Role / Timing Role: System controller managing multiple GPIO-driven loads, ADC-sensed ambient light/temperature, and wakeup events. Use Value: 71 GPIOs and Stop-mode current ≤160 µA allow always-on functionality with battery longevity; integrated ACMP replaces discrete comparators for window pinch detection. |
| Transmission Control Unit (TCU) | Electric Power Steering (EPS) |
|
Use Scenario: Gear selection logic, solenoid driver control, and hydraulic pressure regulation using CAN feedback from sensors. IC Role / Device Role / Timing Role: Safety-critical controller with ASIL-B capable peripherals including CRC, watchdog, and LVD with interrupt/fail-safe reset. Use Value: –40 to +125 °C rating and automotive qualification (S-prefix) meet TCU under-hood thermal requirements; dual FTM units support synchronized PWM for shift solenoids. |
Use Scenario: Torque assist computation, motor phase current sensing, and fault handling in brushless DC motor control. IC Role / Device Role / Timing Role: Real-time motor controller interfacing with 3-phase inverter gate drivers and torque/speed sensors. Use Value: 12-bit ADC with hardware trigger and Stop-mode operation enables continuous current sampling during low-speed maneuvers; 48 MHz core supports 20 kHz PWM carrier frequency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9KEAZ128AMLK | Same core, memory, and peripherals; differs only in temperature grade (–40 to +105 °C vs. –40 to +125 °C) and package (80-pin LQFP same, but M = 105°C, K = 80-pin). | Not suitable for under-hood TCU or EPS where junction temperatures exceed 105 °C ambient. | Select S9KEAZ128ACLK when full automotive temperature compliance (125 °C) is required; S9KEAZ128AMLK suffices for cabin-mounted BCMs. |
| S9KEAZ64ACLK | Identical package, temperature grade, and peripheral set, but halved flash (64 KB) and RAM (8 KB); same 48 MHz core and MSCAN. | Limited to simpler applications without AUTOSAR stack or large diagnostic log buffers. | Choose S9KEAZ64ACLK for cost-sensitive entry-level ECUs or gateway nodes where memory headroom is not critical. |
Compared with S9KEAZ128AMLK and S9KEAZ64ACLK, the S9KEAZ128ACLK uniquely combines 125 °C operation, full 128 KB flash for complex firmware, and identical pinout-making it the only option for thermally demanding, memory-intensive automotive control tasks requiring no PCB redesign.
Availability
S9KEAZ128ACLK is available at Aetrix Electronics and suitable for engine control units, transmission control modules, and electric power steering systems requiring stable component supply across extended automotive lifecycles.
Supply support for S9KEAZ128ACLK 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-grade reliability.
The KEA family-including S9KEAZ128ACLK-is engineered specifically for cost-sensitive, safety-aware automotive body and powertrain applications, emphasizing low-power operation, CAN integration, and ASIL-B ready features without sacrificing performance.
FAQ
What is the maximum operating frequency of the S9KEAZ128ACLK?
The S9KEAZ128ACLK operates at up to 48 MHz using its internal FLL with factory-trimmed 37.5 kHz reference clock. This frequency is fully supported across the entire –40 to +125 °C temperature range and 2.7–5.5 V supply voltage, enabling deterministic real-time execution for automotive control loops. The S9KEAZ128ACLK maintains timing compliance without derating under worst-case thermal and voltage conditions.
Does the S9KEAZ128ACLK support CAN communication?
Yes, the S9KEAZ128ACLK includes an MSCAN module compliant with ISO 11898-1 CAN 2.0B specification. It supports programmable bit timing, message filtering, error confinement, and wake-on-CAN functionality. The S9KEAZ128ACLK requires an external CAN transceiver (e.g., TJA1042) connected to dedicated CANH/CANL pins, and its MSCAN peripheral is fully functional in all operating modes including Stop with LPO clock active.
What package type does the S9KEAZ128ACLK use?
The S9KEAZ128ACLK uses an 80-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch), designated by the "LK" suffix in its part number. This package is RoHS-compliant, rated MSL3, and thermally characterized with θJA = 57 °C/W on single-layer board and 44 °C/W on four-layer board-enabling reliable thermal performance in automotive under-hood environments.
Can the S9KEAZ128ACLK operate in low-power Stop mode with RTC running?
Yes, the S9KEAZ128ACLK supports Stop mode with the 1 kHz low-power oscillator (LPO) active, enabling RTC operation and wake-up via alarm or external interrupt. Typical Stop-mode current is 160 µA at 5 V and 125 °C, and the RTC adds less than 1 µA. The S9KEAZ128ACLK retains full RAM content and register state during Stop, allowing instant resumption of control tasks upon wake-up.
What is the flash memory endurance and data retention specification for the S9KEAZ128ACLK?
The S9KEAZ128ACLK flash memory is rated for 100,000 program/erase cycles and 20-year data retention at 85 °C. These specifications are guaranteed across the full operating temperature range (–40 to +125 °C) and supply voltage (2.7–5.5 V). The S9KEAZ128ACLK supports in-application programming (IAP) and secure flash protection via backdoor key access, with erase times of 20.05 ms per sector and 100.18 ms for full chip erase.
S9KEAZ128ACLK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-LQFP
- Series:
- Kinetis KEA
- Packaging:
- Tray
- 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:
- 71
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9KEAZ128ACLK FAQ
1.How can I place an order for S9KEAZ128ACLK through Aetrix?
Please submit a Request for Quotation (RFQ) for S9KEAZ128ACLK 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 S9KEAZ128ACLK reliable?
The price and inventory of S9KEAZ128ACLK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9KEAZ128ACLK is usually 5 days.
3.What payment methods are accepted for S9KEAZ128ACLK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9KEAZ128ACLK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9KEAZ128ACLK?
S9KEAZ128ACLK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9KEAZ128ACLK 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 S9KEAZ128ACLK?
For technical support, including S9KEAZ128ACLK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9KEAZ128ACLK requirements.
6.How does Aetrix verify that S9KEAZ128ACLK is sourced from the original manufacturer or authorized distributors?
All S9KEAZ128ACLK 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 S9KEAZ128ACLK meets industry standards.
7.What is the process for return or replacement of S9KEAZ128ACLK?
All S9KEAZ128ACLK units undergo pre-shipment inspection (PSI). If there is an issue with S9KEAZ128ACLK, 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 S9KEAZ128ACLK part is unused and in its original packaging.
Return procedure for S9KEAZ128ACLK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S9KEAZ128ACLK Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
