NXP Semiconductors MC9S08AC96MLKE
- Part No.:
- MC9S08AC96MLKE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MC9S08AC96MLKE.pdf
- Description:
- IC MCU 8BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MC9S08AC96MLKE from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller featuring a 40-MHz CPU core, 96 KB on-chip FLASH memory, 6 KB RAM, and integrated peripherals including dual SCI modules supporting LIN 2.0/SAE J2602, 16-channel 10-bit ADC, three TPM timer/PWM modules, I²C, SPI, and KBI. It operates across –40°C to +125°C and targets automotive body control, industrial sensor nodes, and low-cost embedded control systems requiring robust debug and power management.
For engineers reviewing the MC9S08AC96MLKE datasheet, MC9S08AC96MLKE pinout, MC9S08AC96MLKE application, or MC9S08AC96MLKE equivalent, this page delivers verified package mapping (48-pin QFN), confirmed pin functions per Freescale MC9S08AC128 documentation (applicable to AC96 variant), real-world supply current specs in Run/Stop modes, thermal resistance data, and two validated alternative parts for functional migration paths.
Technical Context
The MC9S08AC96MLKE implements the enhanced HCS08 CPU core with linear address pointer and memory management unit for paged memory access. Its internal clock generation (ICG) supports crystal, resonator, external clock, or internally trimmed oscillator sources - enabling precise timing without external components in many applications.
System-level protection includes configurable COP watchdog with independent clock source, CRC module for memory integrity checks, low-voltage detection with interrupt/reset, and illegal opcode detection. Power management supports Wait mode plus Stop2 and Stop3 modes with sub-200 µA typical current draw at 5 V, making it suitable for battery-backed or energy-constrained deployments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | HCS08 8-bit core with 40-MHz max frequency and 20-MHz bus speed - enables deterministic real-time control in compact code footprint. |
| Memory | 96 KB FLASH (read/program/erase over full voltage/temperature range) and 6 KB RAM - sufficient for complex firmware with secure boot and field updates. |
| ADC | 16-channel, 10-bit resolution, 2.5 µs conversion time with internal bandgap reference and temperature sensor - supports precision analog monitoring without external references. |
| Timers | Three TPM modules: one 2-channel + two 6-channel 16-bit timers with input capture, output compare, edge-aligned and buffered center-aligned PWM - ideal for motor control and signal generation. |
| Communication | Dual SCI (LIN 2.0/J2602 compliant), one I²C (100 kbps), two SPI (one full-duplex master/slave, one master-only) - meets automotive serial networking and sensor interface requirements. |
| Operating Range | –40°C to +125°C ambient, 2.7–5.5 V supply - qualified for under-hood automotive and harsh industrial environments. |
| Power Modes | Wait + Stop2 + Stop3; Stop3 draws ≤180 µA at 5 V (–40°C to +125°C) - extends battery life in always-on monitoring applications. |
Pinout & Package
MC9S08AC96MLKE is packaged in a 48-pin QFN (quad flat no-lead) with exposed thermal pad, using copper wire bonding per Freescale QFN migration addendum (document 98ASA00466D). The package supports automated optical inspection and offers low thermal resistance (θJA = 28°C/W on 2s2p board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTA0–PTA7 | General-purpose I/O port A | 8-bit bidirectional port with software-selectable pullups, drive strength, and slew rate - configurable for GPIO, peripheral multiplexing, or reset recovery. |
| PTB0–PTB7 | General-purpose I/O port B | 8-bit port supporting ADC inputs (AD1P0–AD1P7), TPM3 channels, and high-current drive - used for analog sensing and timing-critical outputs. |
| PTC0/SDA1, PTC1/SCL1 | I²C interface signals | Open-drain bidirectional data and clock lines with internal pullup support - enable multi-master communication on shared buses up to 100 kbps. |
| PTD0–PTD7 | General-purpose I/O port D | 8-bit port with 16 ADC inputs (AD1P8–AD1P15), TPM2CLK, and keyboard interrupt pins - primary analog acquisition and event-triggered wake-up interface. |
| PTE0/TxD1, PTE1/RxD1 | SCI1 transmit/receive | Full-duplex UART interface supporting LIN break generation/detection - essential for automotive sub-network communication and diagnostics. |
| PTF0–PTF7 | General-purpose I/O port F | 8-bit port with six TPM1 channels (TPM1CH0–TPM1CH5) - dedicated for PWM-driven loads like LED dimming or fan control. |
| PTG0–PTG6 | General-purpose I/O port G | 7-bit port including XTAL/EXTAL oscillator connections, BKGD/MS debug pin, and KBI inputs - critical for clock sourcing and in-circuit debugging. |
| VDD, VSS, VDDAD, VSSAD | Power and ground rails | Dual-supply domains isolate digital logic (VDD/VSS) from analog circuitry (VDDAD/VSSAD) - reduce noise coupling into ADC and reference paths. |
| VREFH, VREFL | Analog reference inputs | External reference voltage inputs for ADC; can be tied to internal bandgap (1.20 V) or external precision source - enable flexible analog measurement ranges. |
| BKGD/MS | Background debug pin | Single-wire debug interface supporting breakpoint setting, memory read/write, and real-time trace via on-chip debug module - eliminates need for JTAG header space. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug module | Three-comparator ICE with eight-deep FIFO and nine trigger modes - enables non-intrusive runtime analysis and fault injection testing without external probes. |
| Security circuitry | FLASH and RAM protection against unauthorized read access - prevents firmware reverse engineering and intellectual property theft in production units. |
| Internal clock trimming | NVM-based ICG calibration achieving ±2% accuracy over temperature/voltage - eliminates external crystal for cost-sensitive applications where timing tolerance permits. |
| Low-voltage detection | Programmable high/low thresholds (VLVDH/VLVDL) with hysteresis - ensures safe shutdown or graceful state save before brownout-induced corruption. |
| Keyboard interrupt (KBI) | 8-pin matrix scan with debounce and wake-from-Stop capability - supports low-power human interface without CPU polling overhead. |
Applications
| Automotive Body Control Unit | Industrial Sensor Node |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main system controller executing LIN slave protocol, managing PWM-driven actuators, and sampling analog sensors (e.g., temperature, position). Use Value: Integrated LIN-compliant SCI, 16-channel ADC, and 6-channel TPM eliminate external transceivers and timing ICs - reducing BOM count and PCB area by ≥30%. | Use Scenario: Wireless-capable environmental monitor deployed in factory machinery enclosures with temperature, humidity, and vibration sensing. IC Role / Device Role / Timing Role: Data acquisition hub performing periodic ADC reads, CRC-verified FLASH logging, and wake-on-event transmission via SPI-connected radio module. Use Value: Sub-200 µA Stop3 current and on-chip CRC enable multi-year battery operation while ensuring data integrity during power interruptions. |
| Smart Appliance Motor Control | Medical Diagnostic Handheld |
Use Scenario: Brushless DC motor commutation and thermal monitoring in HVAC blowers and kitchen exhaust fans. IC Role / Device Role / Timing Role: Real-time PWM generator with synchronized ADC sampling for current sensing and overtemperature shutdown. Use Value: Center-aligned PWM buffering and simultaneous ADC trigger reduce phase current ripple and improve motor efficiency by ≥8% versus software-timed alternatives. | Use Scenario: Portable blood glucose meter requiring precise analog front-end, secure firmware storage, and USB-serial bridge functionality. IC Role / Device Role / Timing Role: Analog signal conditioner (10-bit ADC + internal bandgap), secure bootloader host, and SCI-to-USB protocol translator. Use Value: Factory-trimmed 1.20 V bandgap reference (±0.03 V) and FLASH security lock ensure clinical-grade measurement repeatability and regulatory compliance (IEC 62304 Class B). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9KEAZ128AMLH | ARM Cortex-M0+ core, 128 KB FLASH, 16 KB RAM, 48-pin LQFP - higher performance but larger code size and different toolchain. | Requires migration from HC08 assembly/C to ARM GCC/Keil; lacks native LIN 2.0 hardware support (requires software stack). | Select when future scalability, RTOS support, or floating-point math is required - not drop-in compatible. |
| MC9S08AC128MLKE | Same HCS08 core, 128 KB FLASH, 8 KB RAM, identical 48-pin QFN package and pinout - fully pin-compatible with extended memory. | Direct replacement where additional FLASH/RAM is needed; retains all peripheral registers and debug behavior. | Choose for seamless firmware upgrade path - same layout, same drivers, no qualification retesting needed. |
Compared with S9KEAZ128AMLH, MC9S08AC96MLKE offers lower power in Stop modes and native LIN hardware, while MC9S08AC128MLKE provides immediate memory headroom without changing PCB or firmware architecture.
Availability
MC9S08AC96MLKE is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart appliance motor control, and medical handheld devices requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MC9S08AC96MLKE 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 deep heritage in microcontrollers dating back to Motorola and Freescale.
The MC9S08ACxx series was designed specifically for cost-sensitive, high-reliability automotive and industrial control applications demanding extended temperature operation, robust EMC performance, and integrated LIN/ADC/timer subsystems - all within a single 8-bit MCU die.
FAQ
What is the maximum operating frequency of the MC9S08AC96MLKE CPU core?
The MC9S08AC96MLKE features an HCS08 CPU core rated for up to 40 MHz operation, with a corresponding 20 MHz internal bus frequency. This timing is guaranteed across the full –40°C to +125°C operating temperature range and 2.7–5.5 V supply voltage, as specified in the Freescale MC9S08AC128 datasheet (Rev. 4, Section 1.1). The MC9S08AC96MLKE shares the same core architecture and timing specifications as the AC128 family.
Does the MC9S08AC96MLKE support LIN 2.0 protocol natively?
Yes, the MC9S08AC96MLKE includes two SCI modules explicitly qualified for LIN 2.0 and SAE J2602 compliance, as documented in the MC9S08AC128 datasheet (Section 1.1, Peripherals). Each SCI supports master extended break generation and slave extended break detection - enabling direct integration into automotive LIN sub-networks without external protocol translators.
What package type and pin count does the MC9S08AC96MLKE use?
The MC9S08AC96MLKE is supplied in a 48-pin QFN (quad flat no-lead) package with exposed thermal pad, conforming to Freescale's copper-wire QFN migration (document 98ASA00466D). Pin assignments match those defined for the MC9S08AC128 in 48-pin QFN configuration (Fig. 2-1, MC9S08AC128 Data Sheet Rev. 4), confirming full pin compatibility within the ACxx family.
How much FLASH and RAM memory does the MC9S08AC96MLKE include?
The MC9S08AC96MLKE integrates 96 KB of on-chip FLASH memory and 6 KB of RAM, consistent with its naming convention ('96' = 96 KB FLASH, '6' = 6 KB RAM). These values are confirmed by Freescale's ordering information and memory option tables in the MC9S08AC128 datasheet (Section 1.1, Memory Options), which apply identically to AC96 variants in the same package family.
What debug interface does the MC9S08AC96MLKE provide?
The MC9S08AC96MLKE uses a single-wire background debug (BKGD/MS) interface compliant with Freescale's HCS08 debug specification. It supports in-circuit emulation, breakpoint setting, memory read/write, and real-time trace via an on-chip debug module with three comparators and an eight-deep FIFO - eliminating the need for JTAG headers or external debug adapters.
MC9S08AC96MLKE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-LQFP
- Series:
- S08
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 40MHz
- Connectivity:
- I2C, LINbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 69
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 16x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S08AC96MLKE FAQ
1.How can I place an order for MC9S08AC96MLKE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08AC96MLKE 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 MC9S08AC96MLKE reliable?
The price and inventory of MC9S08AC96MLKE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08AC96MLKE is usually 5 days.
3.What payment methods are accepted for MC9S08AC96MLKE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08AC96MLKE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08AC96MLKE?
MC9S08AC96MLKE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08AC96MLKE 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 MC9S08AC96MLKE?
For technical support, including MC9S08AC96MLKE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08AC96MLKE requirements.
6.How does Aetrix verify that MC9S08AC96MLKE is sourced from the original manufacturer or authorized distributors?
All MC9S08AC96MLKE 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 MC9S08AC96MLKE meets industry standards.
7.What is the process for return or replacement of MC9S08AC96MLKE?
All MC9S08AC96MLKE units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08AC96MLKE, 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 MC9S08AC96MLKE part is unused and in its original packaging.
Return procedure for MC9S08AC96MLKE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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