S9S08SG4E2MSC - 8-Bit 40 MHz 4 KB MCU | NXP
MPN: S9S08SG4E2MSC ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.4612 | $1.46 |
| 10 | $1.35 | $13.50 |
| 100 | $1.2 | $120.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.95 | $950.00 |
S9S08SG4E2MSC Overview
What is an 8-bit MCU? An 8-bit microcontroller is a single-chip embedded controller containing a processor core, program memory, data memory, I/O ports, timers, and communication peripherals. The S08 family is an entry-level to mid-range platform within the broader HCS08 microcontroller hierarchy, intended for control logic where 8-bit processing, low pin count, and deterministic peripheral access are more important than high computation bandwidth.
The S9S08SG4E2MSC combines 40 MHz processing with 4 KB flash and 256 x 8 RAM. Its listed connectivity includes I²C, LINbus, SCI, and SPI, while integrated peripherals include LVD, POR, PWM, and WDT. The device provides four I/O lines according to the supplied component data, making it suitable for compact sensing, actuator-control, communication, and industrial interface modules.
Its internal oscillator supports standalone operation without an external crystal in suitable clock configurations. The S08 core uses CISC-style instruction execution, and the peripheral set is organized for embedded control rather than high-bandwidth data processing. The 8-pin SOIC outline is particularly useful where board area is constrained but a conventional surface-mount footprint is preferred.
Typical applications include LIN slave modules, compact motor or actuator controllers, sensor nodes, small industrial control boards, communication interfaces, and high-temperature embedded products. For these designs, the main engineering trade-offs are limited flash capacity, four I/O lines, and the modest 8-bit processing bandwidth. The part is therefore best selected when its integrated communication and control peripherals meet system requirements without requiring larger-memory MCU platforms.
This page consolidates manufacturer information, distributor specifications, lifecycle data, sourcing context, and application guidance for the S9S08SG4E2MSC. Verify the complete pinout, electrical limits, oscillator settings, and peripheral configuration against the official NXP datasheet before releasing a production design.
Drop-in alternatives for S9S08SG4E2MSC — 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 S9S08SG4E2MSC (same form factor and footprint) — differing in Package, Connectivity, Core, Core Processor, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
S9S08EL8CTJ
✅ Drop-In📋 Reference alternative (not in catalog)
S9S08SL8CTJ
✅ Drop-In📋 Reference alternative (not in catalog)
S9S08SG8E2MSC
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.65 / Unit
View Datasheet →S9S08SG16E2MSC
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MC9RS08KA4CWJ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.02 / Unit
View Datasheet →S9S08SG4E2MSC Maximum Ratings & Electrical Characteristics
| Core Processor | S08 8-bit HCS08 CISC |
| Core Size | 8-bit |
| Maximum Speed | 40 MHz |
| Program Memory Size | 4 KB (4K x 8) flash |
| RAM Size | 256 x 8 bits |
| Operating Voltage | 3.3 V / 5 V |
| Package | 8-pin SOIC, 0.154 inch (3.90 mm) width |
| Mounting Type | Surface mount |
| Connectivity | I²C, LINbus, SCI, SPI |
| Integrated Peripherals | LVD, POR, PWM, WDT |
| Number of I/O | 4 |
| Oscillator | Built-in oscillator |
| Application | LIN slave, general market, space-constrained embedded designs |
| Maximum Ambient Temperature | Up to 150°C |
| Series | S08 / SG |
| Product Status | Obsolete |
S9S08SG4E2MSC 8-pin soic, 0.154 inch (3.90 mm) width Pin Configuration Guide
Pin configuration for S9S08SG4E2MSC (8-pin soic, 0.154 inch (3.90 mm) width 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 S9S08SG4E2MSC.
Refer to the datasheet for full pin configuration.
Typical Applications
S9S08SG4E2MSC is suitable for 6 applications: LIN Slave Sensor Node, Compact Industrial Control Module, Small Motor or Actuator Controller, Embedded Communication Interface, High-Temperature Embedded Product, Appliance Control Board.
LIN Slave Sensor Node
The S9S08SG4E2MSC fits compact LIN slave sensor nodes because the listed connectivity includes LINbus and the device is positioned for space-constrained embedded designs. It can monitor a simple sensor or actuator state and update a LIN frame without requiring a larger MCU package. The 8-pin SOIC outline helps preserve board area, while the built-in oscillator can reduce external clock-component count when supported by the final configuration. Before deployment, verify the exact LIN transceiver interface, available I/O assignment, timing, and bus electrical requirements in the NXP datasheet.
Recommended
Compact Industrial Control Module
The S9S08SG4E2MSC is suitable for small industrial control modules that require deterministic 8-bit control, low board area, and basic serial communications. Its listed 40 MHz core and 4 KB flash provide a compact firmware platform, while PWM, WDT, LVD, and POR support common embedded-control functions. The part is also associated with high-temperature applications up to 150°C ambient in the supplied data. Engineers should confirm the production temperature grade, watchdog behavior, brownout thresholds, and peripheral timing before using it in machinery or process-control equipment.
Recommended
Small Motor or Actuator Controller
The S9S08SG4E2MSC can serve as the control center for a small motor, valve, relay, or actuator node where the system needs basic sequencing, pulse-width modulation, and serial diagnostics. The listed PWM peripheral is directly relevant to actuator drive, and the 40 MHz core provides more timing headroom than a minimal low-power microcontroller. However, only four I/O lines are reported, so motor-drive topology, protection, current sensing, and interface allocation must be designed around that limitation. The MCU is a controller element, not a replacement for power transistors, drivers, or protection circuitry.
Recommended
Embedded Communication Interface
The S9S08SG4E2MSC is a practical candidate for compact communication interfaces that need I²C, SCI, SPI, or LIN functionality in an 8-pin package. These peripherals can connect a sensor, external transceiver, storage device, or service port while the MCU handles framing, status, and control logic. The available flash and RAM are modest, so protocol buffering and application complexity should be kept within the device capacity. Verify the exact peripheral availability, alternate-function mapping, pin multiplexing, and electrical timing in the official NXP documentation.
Recommended
High-Temperature Embedded Product
The S9S08SG4E2MSC is identified in the supplied data as suitable for high-temperature applications up to 150°C ambient. That capability can be valuable in appliance controls, industrial modules, and equipment where the controller is exposed to elevated enclosure temperatures. Temperature qualification alone does not guarantee system reliability; designers must account for heat dissipation, component derating, enclosure temperature, soldering, and the behavior of external sensors and power components. The official NXP datasheet should define the exact operating grade and recommended application limits.
Recommended
Appliance Control Board
The S9S08SG4E2MSC fits small appliance controls where a low-pin-count MCU must manage simple user inputs, sequencing, indicators, and communications. Its built-in oscillator, flash program memory, PWM capability, and watchdog support can reduce the external component count in a compact design. Four reported I/O lines constrain the available control surface, so button, display, relay, and sensor multiplexing must be planned carefully. For mains-connected or safety-related equipment, use appropriate isolation, protection, and a current NXP lifecycle strategy rather than treating the MCU as a complete safety solution.
Recommended
Recommended Products Summary
Engineering reference data for S9S08SG4E2MSC — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | S9S08EL8CTJ | S9S08SL8CTJ | S9S08SG8E2MSC | S9S08SG16E2MSC | MC9RS08KA4CWJ |
|---|---|---|---|---|---|---|
| Package | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
Key Differentiators
- Compact 8-pin SOIC control platform (vs S9S08EL8CTJ)
- Integrated communication peripheral set (vs S9S08SL8CTJ)
- High-temperature application positioning (vs MC9RS08KA4CWJ)
Design Notes
Plan the 3.3 V / 5 V supply rail and verify the exact operating limits in the official NXP datasheet before placing the MCU in a board design. Place the required supply decoupling capacitors close to the device power pins, keep the return path short, and account for voltage tolerance, startup current, and any attached communication transceiver in the system power budget.
The 8-pin SOIC footprint is useful for compact boards, but the package has limited I/O resources. Route serial interfaces and sensitive signals with short traces, provide a continuous ground reference, and keep switching or high-current paths away from communication lines. Confirm the physical pin numbering and exposed electrical requirements against the official package drawing before footprint release.
Do not assume that an SG-family substitute is automatically interchangeable. Check pin-to-pin mapping, supply range, oscillator configuration, memory size, RAM, peripheral availability, watchdog behavior, and timing at the maximum clock. The supplied NXP information confirms family-level compatibility with S08EL and S08SL families, but specific replacement MPNs were not fully verified.
The supplied family information identifies applications up to 150°C ambient, but the complete NXP temperature grade and derating curve must be checked before using the part in a high-temperature enclosure. Estimate junction temperature from actual switching loss, board copper, airflow, and adjacent heat sources rather than relying on the ambient rating alone. External power devices and sensors also require separate thermal validation.
Compliance Information
The supplied search results identify the product as an NXP microcontroller and list obsolete status, but do not provide verified RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. Confirm compliance with the current manufacturer documentation or authorized sourcing record.
