S9KEAZ64ACLH - 64KB Cortex-M0+ MCU 48MHz | NXP Kinetis KEA
MPN: S9KEAZ64ACLH ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.2 | $3.20 |
| 10 | $2.85 | $28.50 |
| 100 | $2.42 | $242.00 |
| 500 | $2.1 | $1,050.00 |
| 1,000 | $1.86 | $1,860.00 |
S9KEAZ64ACLH Overview
A microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals such as timers and communication interfaces. Within the embedded systems hierarchy, the S9KEAZ64ACLH sits in the 32-bit general-purpose MCU class, positioned as a low-cost, high-reliability alternative to 8-bit devices while remaining fully pin- and software-scalable across the KEA family.
Key features include the ultra-low-power Cortex-M0+ core, up to 48 MHz operating frequency, 64 KB (64K x 8) flash, connectivity peripherals (CAN, LIN, I2C, SPI, UART/USART), and system peripherals (LVD, POR, PWM, WDT). The KEA family provides robust EMC/ESD performance, high-temperature operation, and low radiated emissions, per NXP product documentation.
Technically, the KEA128 sub-family combines an ARM Cortex-M0+ pipeline with automotive-grade qualification, targeting 5V-tolerant I/O designs and motor-control-oriented timers. With 57 GPIO lines, the S9KEAZ64ACLH supports direct drive of relays, LEDs, and motor-control bridges. The CAN and LIN interfaces make it a natural fit for in-vehicle body networks where a single chip must bridge high-speed and low-speed buses.
Typical applications include automotive body electronics (window lifters, seat control, lighting modules), brushed and stepper motor control in HVAC actuators, and industrial end nodes requiring CAN connectivity with strict EMC requirements.
Design consideration: the Cortex-M0+ lacks hardware divide and DSP instructions compared with Cortex-M4 alternatives, so algorithms requiring heavy arithmetic should be benchmarked, while simple control loops benefit from the deterministic, interrupt-fast design and very low interrupt latency.
This page synthesizes distributor pricing, drop-in same-family alternatives, practical design notes, and cross-reference comparison data not found in the manufacturer datasheet.
Drop-in alternatives for S9KEAZ64ACLH — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
S9KEAZ128AMLK
✅ Drop-In📋 Reference alternative (not in catalog)
S9KEAZ64AMLH
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
S9KEAZ32AMLH
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
S9KEAZ16AMLH
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
S9KEAZ128AMLH
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MKE02Z64VLH4
✅ Drop-In📋 Reference alternative (not in catalog)
S9KEAZ64ACLH Maximum Ratings & Electrical Characteristics
| Core Processor | ARM Cortex-M0+ |
| Core Size | 32-Bit |
| Max Core Frequency | 48 MHz |
| Program Memory Size | 64KB (64K x 8) |
| Program Memory Type | Flash |
| Series | Kinetis KEA (KEA128 Sub-Family) |
| Connectivity | CANbus, I2C, LINbus, SPI, UART/USART |
| Peripherals | LVD, POR, PWM, WDT |
| Number of I/O | 57 |
| Package | 64-LQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Part Status | Active |
| Data Sheet | KEA128 Sub-Family Data Sheet (NXP) |
S9KEAZ64ACLH 64-lqfp (10x10 mm) Pin Configuration Guide
Pin configuration for S9KEAZ64ACLH (64-lqfp (10x10 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for S9KEAZ64ACLH.
Refer to the datasheet for full pin configuration.
Typical Applications
S9KEAZ64ACLH is suitable for 6 applications: Automotive Body Control Modules, Brushed DC and Stepper Motor Control, CAN-Connected Industrial Sensor Nodes, Automotive Lighting Modules, HVAC and Climate Control Units, Low-Cost IoT and Embedded Control Endpoints.
Automotive Body Control Modules
The S9KEAZ64ACLH fits automotive body electronics because NXP positions the KEA128 sub-family as a robust, cost-sensitive solution with strong EMC/ESD, high-temperature capability, and low radiated emissions. Its on-chip CAN and LIN controllers connect directly to in-vehicle networks, while 57 GPIO lines drive window lifters, mirror actuators, and interior lighting without external expansion. In a typical body module the MCU runs the communication stack and diagnostic logic while PWM timers control lamp dimming and motor duty cycles. The 64 KB flash accommodates UDS diagnostics and bootloaders with headroom, and the deterministic Cortex-M0+ interrupt latency supports time-critical switch debouncing and bus response requirements.
Recommended
Brushed DC and Stepper Motor Control
The S9KEAZ64ACLH suits motor-control nodes because its PWM peripherals generate complementary drive signals while the 48 MHz Cortex-M0+ executes current-limit and speed-loop algorithms with deterministic latency. In HVAC actuators, seat adjusters, and window lifters, the MCU typically interfaces to an external H-bridge or pre-driver through PWM outputs and reads feedback through analog or comparator inputs. The 5V-tolerant I/O philosophy of the KEA family simplifies direct interfacing with automotive sensor levels, and the watchdog timer enfails safe recovery from fault conditions. With 64 KB flash, field-oriented or profile-position firmware plus a CAN diagnostic stack coexist comfortably in a single device.
Recommended
CAN-Connected Industrial Sensor Nodes
For industrial end nodes that must report over CAN, the S9KEAZ64ACLH integrates the CAN controller on-chip, eliminating an external CAN peripheral and reducing BOM cost. Its 57 GPIO and SPI/I2C interfaces connect to ADCs and sensors, while 64 KB flash holds both application logic and a CANopen- or J1939-style protocol stack. The family's strong EMC/ESD performance - explicitly highlighted by NXP - is valuable on factory floors where motors and contactors generate transients. The low-power Cortex-M0+ at 48 MHz keeps the loop fast enough for condition-monitoring tasks, and the LVD and POR peripherals guarantee clean startup behavior in electrically noisy cabinets.
Recommended
Automotive Lighting Modules
The S9KEAZ64ACLH is well matched to interior and exterior lighting control: PWM peripherals implement dimming and ramp effects, 57 GPIO lines handle LED string enables and switch inputs, and LIN or CAN connectivity integrates the module into the vehicle network. NXP's KEA family emphasis on low radiated emissions matters directly in lighting, where fast PWM edges can otherwise create EMC failures. Typical topology uses the MCU to drive LED driver ICs via PWM while monitoring current and temperature through analog channels. The 64 KB flash supports fault logging, thermal derating curves, and diagnostic services demanded by OEM lighting specifications.
Recommended
HVAC and Climate Control Units
Climate-control boards benefit from the S9KEAZ64ACLH's combination of motor PWM, sensor interfaces, and network connectivity on one chip. The MCU reads temperature and pressure sensors over I2C or analog inputs, drives blower and flap motors through PWM, and reports status over LIN to the vehicle or building controller. The high-temperature capability and EMC robustness that NXP cites for the KEA family are essential near heater cores and compressor electronics. With 64 KB flash, the control firmware, PID loops, and diagnostics coexist in one device, and the watchdog with independent clock provides fail-safe behavior demanded in thermal management systems.
Recommended
Low-Cost IoT and Embedded Control Endpoints
Beyond automotive, the S9KEAZ64ACLH serves cost-sensitive industrial IoT endpoints where a 32-bit MCU with generous I/O and robust communications is required at an 8-bit-like price point. SPI and UART/USART interfaces connect to Wi-Fi or serial-to-cloud modules, while the 57 GPIO lines handle local sensing and actuation. The Cortex-M0+ core delivers modern toolchain support (GCC, Keil, IAR) and NXP SDK reuse across the whole KEA family, protecting software investment as memory needs scale from 16 KB to 128 KB with pin-compatible parts. The 64-LQFP 10x10 mm package suits hand-assembly prototypes and volume SMT lines alike.
Recommended
Recommended Products Summary
Engineering reference data for S9KEAZ64ACLH — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | S9KEAZ128AMLK | S9KEAZ64AMLH | S9KEAZ32AMLH | MKE02Z64VLH4 |
|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP - same footprint |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | ARM Cortex-M0+, 32-bit | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Max Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 40 MHz |
| Flash Memory | 64 KB | 128 KB | 64 KB | 32 KB | 64 KB |
| Family / Sub-Family | Kinetis KEA (KEA128) | Kinetis KEA (KEA128) | Kinetis KEA (KEA128) | Kinetis KEA (KEA128) | Kinetis KE02 |
| Lifecycle Status | Active | Active | Active | Active | Active |
Key Differentiators
- More flash headroom than entry KEA parts at the same footprint (vs S9KEAZ32AMLH)
- 48 MHz core clock vs KE02 family (vs MKE02Z64VLH4)
- Cost-optimized within the same family (vs S9KEAZ128AMLK)
Design Notes
Confirm the core before importing code: some third-party metadata (including one Mouser snippet) incorrectly lists the S9KEAZ64ACLH as a Cortex-M4 device, while DigiKey and the NXP product page confirm ARM Cortex-M0+. The M0+ lacks hardware divide and DSP instructions, so porting math-heavy M4 code requires software fallbacks. Also verify the exact temperature grade suffix (C vs M vs A) in the ordering code matches your environment before layout freeze.
The 64-LQFP 10x10 mm package has 0.5 mm pitch, requiring solder-mask-defined or NSMD pads per your PCB fabricator capability. Place 100 nF ceramic decoupling capacitors within 2 mm of each VDD pin pair, and keep the crystal traces short and guarded by ground if an external oscillator is used. Because the KEA family emphasizes EMC robustness, following NXP's KEA reference-design layout (solid ground plane, CAN transceiver close to the connector) preserves that margin.
The KEA128 family is designed around flexible 3.3V/5V-class system integration, but the precise supply range and power sequencing for the S9KEAZ64ACLH must be taken from the electrical characteristics table of the KEA128 sub-family datasheet - do not assume the maximum rating. Add bulk capacitance near the MCU for CAN transceiver transient loads, since bus dominant states can draw 50-70 mA spikes that disturb a lightly decoupled 5V rail.
Compliance Information
The provided web data references the NXP 'Environmental Quality' section on the product page but does not state specific RoHS/REACH values; confirm on nxp.com/part/S9KEAZ64ACLH. The KEA family is marketed for automotive applications, but AEC-Q100 qualification for this specific ordering code was not stated in the provided data.