MC9S08JE128VLK - 8-Bit 48MHz 128KB MCU | NXP
MPN: MC9S08JE128VLK ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.0808 | $5.08 |
| 10 | $5.0808 | $50.81 |
| 100 | $5.0808 | $508.08 |
| 500 | $5.0808 | $2,540.40 |
| 1,000 | $5.0808 | $5,080.80 |
MC9S08JE128VLK Overview
What is an 8-bit microcontroller? An 8-bit microcontroller is a programmable semiconductor containing a central processing unit, memory, and peripheral interfaces. Its CPU and data path process 8-bit values, making it suitable for control logic, monitoring, communication management, and human-interface functions. The MC9S08JE128 belongs to the broader hierarchy of microcontroller, embedded processor, and semiconductor products. Its 128 KB flash capacity provides substantially more code storage than many basic 8-bit control devices while retaining a straightforward embedded programming model.
Verified product data identifies the HCS08 core, 8-bit bus width, 48 MHz maximum clock, and 128 KB flash memory. The 80-LQFP package exposes a large number of pins compared with small-outline packages, which can simplify access to multiple I/O resources in systems that need extensive peripheral connectivity. The package is surface mount and uses gull-wing leads according to distributor package descriptions. Exact pin names, peripheral assignments, voltage limits, RAM capacity, and electrical timing values were not included in the supplied verified data and therefore are not inferred here.
The MC9S08JE128VLK is associated with embedded applications including HVAC building-control systems, PC peripherals, lighting-control systems, industrial networking products, and portable medical devices, as identified by the verified search data. Its combination of flash memory, an S08 processor core, and a high-pin-count package makes it useful when firmware must be stored locally and the board requires numerous external connections. Designers should verify the exact peripheral multiplexing, memory map, and electrical limits against the manufacturer datasheet before layout or production use.
Because the provided material does not confirm an active lifecycle designation, the lifecycle status is recorded as unknown. Distributor listings may indicate supply availability at the time of retrieval, but that does not establish long-term product commitment. The listed unit price is a reference value as of 2026-10-21 and should not be treated as a guaranteed quotation. This page combines verified distributor information, manufacturer-linked documentation references, and engineering-oriented selection guidance without adding unverified electrical values.
Drop-in alternatives for MC9S08JE128VLK — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MC9S08JE128VLK (same form factor and footprint) — differing in Flash Memory, Package, Supply Voltage, Product Type, CPU Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S08QE128CLH
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View Datasheet →MC9S08QE64CLC
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View Datasheet →MC9S08QA4CDNE
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View Datasheet →MC9S08QG4CDNE
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View Datasheet →MC9S08QE8CTG
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View Datasheet →MC9S08JE128VLK Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit microcontroller |
| Processor Core | HCS08 |
| Processor Series | S08JE |
| Data Bus Width | 8 bit |
| Maximum Clock Frequency | 48 MHz |
| Flash Memory | 128 KB |
| Package | 80-LQFP, 12 mm x 12 mm |
| Package Code | LFQFP |
| Number of Terminals | 80 |
| Terminal Form | Gull wing |
| Mounting Type | Surface mount |
| Temperature Grade | Industrial |
| Manufacturer | Freescale Semiconductor / NXP Semiconductors |
| Typical Applications | HVAC building control systems, PC peripherals, lighting control systems, industrial networking products, portable medical devices |
| Unit Price | $5.0808 per unit as of 2026-10-21 |
MC9S08JE128VLK lfqfp Pin Configuration Guide
Pin configuration for MC9S08JE128VLK (lfqfp 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 MC9S08JE128VLK.
Refer to the datasheet for full pin configuration.
Typical Applications
MC9S08JE128VLK is suitable for 8 applications: HVAC Building Control, Lighting Control Systems, Industrial Networking Products, PC Peripheral Control, Portable Medical Devices, HVAC Sensor and Actuator Hub, Embedded Building-Control Module, General Embedded Control Platform.
HVAC Building Control
MC9S08JE128VLK is a reasonable candidate for an HVAC controller because the verified application data identifies HVAC building-control systems and the device provides 128 KB of flash for resident control firmware. Its 80-LQFP package offers a large pin count for sensors, outputs, communication circuitry, and status devices. The MCU can manage deterministic control tasks while local flash retains operating code, calibration data, or logic tables. The supplied data does not verify the exact ADC, PWM, timer, communication, or safety peripherals, so the design must confirm those resources in the manufacturer datasheet before relying on them.
Recommended
Lighting Control Systems
MC9S08JE128VLK can be evaluated for lighting-control systems because the verified application data explicitly lists lighting control among the device's typical uses. Flash memory of 128 KB allows local storage of control sequences, operating profiles, and diagnostic logic, while the 8-bit S08JE processor is suited to simple sequencing and state-machine tasks. A practical design could place the MCU between a communications interface and LED or ballast-control circuitry. Exact PWM resolution, timer channels, voltage levels, and thermal conditions were not included in the supplied data, so those functions must be validated from the datasheet and tested on hardware.
Recommended
Industrial Networking Products
MC9S08JE128VLK is identified by the verified data as applicable to industrial networking products, making it a candidate for supervisory control, protocol coordination, and peripheral management inside network equipment. The 128 KB flash capacity is useful for firmware and configuration storage, while the 80-LQFP package provides a comparatively high number of external connections for status, reset, communications, and management signals. This does not establish that the MCU includes Ethernet, CAN, or a particular network protocol. Interface selection, timing, isolation, surge requirements, and environmental qualification must therefore be confirmed through the exact datasheet and system design review.
Recommended
PC Peripheral Control
MC9S08JE128VLK is listed by the verified data for PC peripherals, where an 8-bit microcontroller can handle configuration, status monitoring, front-panel logic, or peripheral coordination. The 128 KB flash capacity supports embedded firmware for a compact control function, and the 80-LQFP package offers enough physical pins for power, interface, and control signals in a larger assembly. The available data does not confirm USB, storage-interface, or host-controller capabilities. Those functions should not be inferred from the PC-peripheral application label. Designers should check the exact pinout, electrical specifications, and software ecosystem before selecting the MCU for a new PC peripheral.
Recommended
Portable Medical Devices
MC9S08JE128VLK is identified in the verified application data as a candidate for portable medical devices. Its 128 KB flash can hold application firmware, while the 8-bit processor can support compact control logic for sensors, indicators, and user-interface functions. A battery-powered design must still verify operating voltage, current consumption, low-power modes, analog resources, and startup behavior; none of those values are present in the supplied data. Medical use also requires application-specific risk analysis, electrical-safety review, and validation of the finished product. MC9S08JE128VLK should be treated as a component candidate rather than a medically certified solution.
Recommended
HVAC Sensor and Actuator Hub
The MC9S08JE128VLK can serve as a central hub for HVAC sensors and actuators when the required interface resources are available on the exact device. The 80-LQFP package is useful for distributed digital inputs, relay or valve-control outputs, and external sensor connections, while 128 KB flash provides room for control code and configuration storage. Because the verified material does not specify ADC resolution, PWM channels, comparator functions, serial interfaces, or I/O voltage levels, engineers must verify them in the manufacturer datasheet. Prototype power sequencing and actuator isolation carefully, especially for inductive loads and long wiring harnesses.
Recommended
Embedded Building-Control Module
MC9S08JE128VLK is applicable to an embedded building-control module because the verified application list includes HVAC building-control systems and the device combines a 48 MHz maximum clock with 128 KB flash in an 80-LQFP package. The MCU can coordinate local control state, input processing, outputs, and configuration logic while an external communications interface handles higher-level connectivity. The supplied data does not establish network protocol support, memory protection, security features, or low-power performance. Those requirements should be added to the component specification and verified against the exact manufacturer documentation before the module is placed into a building-control product.
Recommended
General Embedded Control Platform
MC9S08JE128VLK provides a compact general-purpose embedded-control starting point when a design needs an 8-bit processor, 128 KB flash, and a high-pin-count surface-mount package. The HCS08 S08JE identity supports a broad class of monitoring, sequencing, and peripheral-control tasks, while the 80-LQFP package offers more physical connectivity than a compact small-outline package. Its suitability depends on whether the required timers, serial interfaces, analog channels, memory map, and interrupt resources match the design. The verified data does not supply those detailed specifications, so engineers should use the datasheet and a proof-of-concept board before committing to a platform decision.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08JE128VLK — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S08QE128CLH | MC9S08QE64CLC | MC9S08QA4CDNE | MC9S08QG4CDNE | MC9S08QE8CTG |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
Key Differentiators
- Verified 128 KB flash capacity (vs MC9S08QE64CLC)
- 48 MHz maximum clock specification (vs MC9S08QE128CLH)
- 80-LQFP physical connectivity (vs MC9S08QA4CDNE)
- Documented application positioning (vs MC9S08QG4CDNE)
Design Notes
Start the layout from the exact MC9S08JE128VLK manufacturer land pattern rather than from the distributor package summary. The verified package is 80-LQFP, 12 mm by 12 mm, with gull-wing leads. Confirm pin numbering, pin functions, exposed-pad requirements, and recommended pad dimensions in the datasheet before routing. Place programming and debug access early in the schematic so the assembled board can be programmed without mechanical modifications.
Power-supply requirements are not present in the supplied verified data, so the input voltage range, current limits, decoupling values, and power sequencing must be taken directly from the manufacturer datasheet. Do not assume that the 48 MHz clock rating defines the operating voltage or allowable external-signal levels. Validate startup, reset behavior, brownout response, and regulator headroom across the complete temperature and load range used by the product.
Do not treat a related S08-family ordering code as a drop-in replacement merely because it has a similar name or an 80-lead package. The MC9S08QE128CLH, MC9S08QE64CLC, MC9S08QA4CDNE, MC9S08QG4CDNE, and MC9S08QE8CTG alternatives are comparison leads only because the supplied search data does not verify pin, memory, timing, and peripheral equivalence. Check the complete pin map, electrical limits, memory organization, interrupt vector behavior, programming toolchain, and firmware impact before substitution.
For HVAC, lighting, and industrial networking products, separate sensitive signal routing from switching nodes and high-current actuator paths. Keep clock and reset traces short, provide a clean return path, and follow the datasheet's decoupling and layout guidance. In cable-connected equipment, account for surge, filtering, isolation, and ground-loop requirements at the board boundary. These measures reduce susceptibility to switching noise and long-wiring faults that are common in building and industrial installations.
The supplied data does not include the operating-voltage range, package thermal resistance, or maximum power dissipation, so no reliable junction-temperature calculation can be made for MC9S08JE128VLK. After those values are obtained from the manufacturer datasheet, estimate dissipation from the actual supply voltage, I/O loading, and device current. Use the resulting value with the package thermal data and the product's ambient-temperature limit to determine whether copper area, airflow, or a thermal strategy is required.
Compliance Information
The supplied verified data does not include environmental, automotive, lead-free, halogen-free, or conflict-minerals declarations for the exact MC9S08JE128VLK ordering code. Compliance fields remain unknown rather than assumed.
