MC9S08AC96CLKE - 40MHz 96KB Flash 8-Bit MCU | NXP
MPN: MC9S08AC96CLKE ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MC9S08AC96CLKE Overview
A microcontroller is a programmable semiconductor that integrates a CPU core, nonvolatile program memory, working memory, I/O ports, and peripherals on one device. The HCS08 CPU belongs to the MCU and embedded-controller hierarchy: firmware executes from flash, peripherals connect the controller to external hardware, and general-purpose I/O supports digital sensors, switches, indicators, and actuators. This makes the device suitable for compact embedded-control systems rather than host computing workloads.
The documented headline resources include an S08 8-bit processor core, 40 MHz clock speed, 96 KB flash, and a supply-voltage range of 2.7 V to 5.5 V. A supplied technical source also identifies 6K x 8 RAM, I2C, LINbus, SCI, SPI, low-voltage detection, power-on reset, PWM, and a watchdog timer. These interfaces make the MCU suitable for communication bridges, industrial modules, motor-control assistance, and general embedded-control products.
The S08AC family combines 8-bit and 32-bit pin-compatible device pairs within the Flexis series. That ecosystem context is useful when upgrading controller complexity, but it does not prove that every family member is a drop-in replacement for MC9S08AC96CLKE. Firmware, memory capacity, peripheral mapping, clocking, electrical limits, and package pins must be compared before substitution.
Typical installations place the controller between power regulation and application-specific interface circuitry. I2C or SPI can connect sensors and memories, SCI can support external data links, timer and PWM resources can drive indicators or actuators, and the watchdog can improve recovery from firmware faults. Designers must also account for decoupling, clock stability, programming access, unused pins, and reset behavior.
For new production, lifecycle planning is especially important because the official NXP result explicitly displays an End of Life overview. Existing embedded products may continue using the part, but new designs should confirm procurement timing, last-time-buy conditions, firmware support, and any approved replacement before committing. This page distinguishes verified facts from unresolved parameters rather than assuming a universal replacement.
This page consolidates manufacturer lifecycle information, distributor specifications, package details, sourcing data, and engineering cautions that are not presented together on a manufacturer product page. It also explains why package similarity alone is insufficient for declaring a pin-compatible substitute, helping engineers make a safer sourcing decision.
Drop-in alternatives for MC9S08AC96CLKE — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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Request AlternativesMC9S08AC96CLKE Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit HCS08 microcontroller |
| Processor Core | S08 8-bit core |
| Maximum Clock Speed | 40 MHz |
| Program Memory | 96 KB Flash |
| Program Memory Organization | 96K x 8 bits |
| RAM | 6K x 8 bits |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Nominal Voltage Options | 3.3 V / 5 V |
| I/O Port Count | 38 ports; one supplied source states 69 I/O, requiring datasheet verification |
| Package | 80-LQFP, 14 mm x 14 mm |
| Mounting Type | Surface mount |
| Connectivity | I2C, LINbus, SCI, SPI |
| Integrated Features | Low-voltage detection, power-on reset, PWM, watchdog timer |
| RoHS | RoHS compliant |
| Lifecycle Status | End of Life overview shown by the official NXP product result |
MC9S08AC96CLKE 80-lqfp, 14 mm x 14 mm Pin Configuration Guide
Pin configuration for MC9S08AC96CLKE (80-lqfp, 14 mm x 14 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 MC9S08AC96CLKE.
Refer to the datasheet for full pin configuration.
Typical Applications
MC9S08AC96CLKE is suitable for 6 applications: Industrial Control Module, LIN Communication Gateway, Sensor Conditioning and Data Acquisition, Motor and PWM Control, Serial Communication Adapter, Appliance User Interface Controller.
Industrial Control Module
The MC9S08AC96CLKE fits an industrial control module that executes dedicated firmware, samples inputs, manages sequences, and drives discrete outputs. Its 40 MHz S08 core provides timing margin, while the supplied source documents 96 KB flash, 6K x 8 RAM, PWM, watchdog, and voltage-detection resources. I2C and SPI can connect sensors or external controllers, and SCI can support service diagnostics. Because the official NXP result displays an End of Life overview, existing modules may use the part, but new industrial programs should first approve an active replacement strategy.
Recommended
LIN Communication Gateway
The MC9S08AC96CLKE can serve as the local controller in a LIN-connected gateway because the supplied technical source explicitly lists LINbus connectivity. The 40 MHz processor supports protocol processing and supervisory logic, while flash provides room for application firmware and RAM supports message buffering. SCI or another serial interface can connect the gateway to an upstream controller, and the watchdog can trigger a controlled recovery after faults. Exact LIN hardware instances and electrical-transceiver requirements must be confirmed from the NXP datasheet before schematic release.
Recommended
Sensor Conditioning and Data Acquisition
The MC9S08AC96CLKE is suitable for a compact acquisition node that reads sensors, converts results, and forwards measurements through a serial link. Its documented I2C and SPI connectivity supports common external sensors, while 96 KB flash accommodates drivers and buffering logic. The PWM resource can trigger sampling or drive an analog stage, and low-voltage detection can flag a falling supply condition. Compared with a host-class processor, the 8-bit architecture can reduce system complexity, although exact ADC availability is [DATA_NEEDED] and must not be assumed.
Recommended
Motor and PWM Control
The MC9S08AC96CLKE can control a modest actuator system when its documented PWM and timer resources match the required timing. The 40 MHz S08 core can execute a deterministic control loop, while flash holds motion logic and the watchdog can restart the firmware after a fault. A 2.7 V to 5.5 V supply range supports mixed-signal designs, subject to the exact operating-mode limits in the manufacturer datasheet. External drivers are required for motors or loads beyond MCU pin current; verify timer channels and pin assignments first.
Recommended
Serial Communication Adapter
The MC9S08AC96CLKE can act as a protocol-conversion adapter between SCI, SPI, I2C, and application-specific peripherals. Its 96 KB flash provides room for protocol stacks and configuration data, while the 40 MHz core can service interrupt-driven traffic and framing. The watchdog is useful for unattended field equipment because it can help recover from software faults. The device should operate from a regulated, decoupled rail, and each serial interface requires verified signal levels, termination, and connector protection for the target environment.
Recommended
Appliance User Interface Controller
The MC9S08AC96CLKE can manage buttons, indicators, displays, and service interfaces in a compact appliance controller. Its I/O resources support discrete user inputs and outputs, PWM can dim indicators, and SCI or SPI can connect a display or keypad. The watchdog improves recovery after transient faults, while power-on reset and documented low-voltage detection support basic supervisory behavior. The verified data does not identify a human-interface interface peripheral, so a design must use external controllers where direct display driving is required.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08AC96CLKE — comparison, design guidance, and compliance information.
Selection Guide
Design Notes
Resolve the conflicting I/O count before schematic capture. The supplied DigiKey result states 38 ports, while another technical source lists 69 I/O; these values may refer to different counting conventions, but the evidence does not establish that. Use the exact MC9S08AC96CLKE NXP datasheet to map every package terminal and every multiplexing option. Do not assume that a higher aggregate I/O count means 69 independently usable pins.
Design the power rail for the documented 2.7 V to 5.5 V range, but select the actual operating point from the manufacturer recommendations. Place local supply decoupling at the MCU supply pins and keep switching-converter or motor-driver nodes away from sensitive communication traces. Because no verified quiescent-current or absolute-maximum values were supplied, do not invent them. Confirm voltage tolerance, I/O limits, startup behavior, and brownout requirements in the NXP datasheet before finalizing power capacity.
The verified package is 80-LQFP at 14 mm by 14 mm, implying a fine-pitch assembly requirement. Follow the manufacturer land pattern and paste-mask recommendations rather than creating dimensions from a generic LQFP template. Reserve programming and debug access, route clocks away from communication edges, provide stable decoupling, and terminate external buses according to their protocols. A complete pinout was not supplied, so PCB release must wait for verified package drawings and pin functions.
The official NXP result displays an End of Life overview, while one secondary source labels the part active. Treat the manufacturer lifecycle notice as controlling and obtain its Product Change Notice before new production. Record the quoted date code, traceability, authorized channel, and last-time-buy terms. For long-lived equipment, also qualify a supported redesign early because nominal software compatibility does not guarantee package, timing, peripheral, or qualification equivalence.
Compliance Information
RoHS compliance appears in the supplied distributor data. REACH, halogen-free status, conflict-minerals reporting, and automotive qualification were not verified. The allowed status set does not include an automotive unknown value beyond the supplied schema wording; no AEC-Q100 claim is made.
