NXP Semiconductors

S9S08SG4E2CSC - 8-Bit 40MHz 4KB Flash MCU | NXP

MPN: S9S08SG4E2CSC ✓ Active
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8-pin SOIC Package 40 MHz Speed 4 KB flash (4K x 8) Memory
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Price updated: 2026-10-20
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S9S08SG4E2CSC Overview

The NXP Semiconductors S9S08SG4E2CSC is an 8-bit S08 microcontroller with a 40 MHz processor, 4 KB of flash program memory, and an 8-pin SOIC package. Verified listings identify the device as an automotive-qualified S08SG-family part with a -40°C to +85°C operating range and four I/O lines.

A microcontroller is a compact embedded-processing semiconductor that combines a CPU core, nonvolatile program memory, RAM, and peripherals on one integrated circuit. The S08 belongs to the MCU hierarchy: S08 core -> 8-bit microcontroller -> embedded controller -> semiconductor. This device targets cost-sensitive, space-constrained control nodes rather than high-compute applications.

Verified features include a 256 x 8 RAM size, I2C, LINbus, SCI, and SPI connectivity, PWM, a watchdog timer, low-voltage detection, and power-on reset. Its 4 KB flash capacity provides space for compact firmware, while the 40 MHz S08 core supports general-purpose control and communication tasks.

The S9S08SG family is positioned for LIN slave, general-market, high-temperature ambient, and space-constrained applications. The listed automotive qualification and four I/O lines make the part relevant to small body, sensing, interface, and monitoring modules, although the exact internal transceiver configuration must be confirmed against the manufacturer datasheet before board release.

Typical uses include temperature-sensing nodes, low-power monitors, LIN-connected peripherals, and compact automotive electronics. The 8-pin SOIC package supports conventional surface-mount assembly while keeping the design footprint small for entry-level embedded systems.

The primary design checks are supply voltage, pin multiplexing, clock configuration, memory limits, and peripheral availability. Do not infer a pin function from the family name alone; use the exact package pinout and datasheet for S9S08SG4E2CSC. The verified data does not provide a full pin mapping or electrical timing table.

This page consolidates verified distributor and manufacturer information, explicit missing-data markers, application context, and selection guidance so engineers can evaluate the part without treating unverified specifications as facts.

Drop-in alternatives for S9S08SG4E2CSC — 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 S9S08SG4E2CSC (same form factor and footprint) — differing in Connectivity, Core Processor, Package, Series.

NXP Semiconductors
Connectivity: I²C, LINbus, SCI, SPI
Core Processor: S08 8-bit HCS08 CISC
Package: 8-pin SOIC, 0.154 inch (3.90 mm) width
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S9S08SG4E2MSC

✅ Drop-In ⚠️ Specs Unverified
NXP Semiconductors
📦 8-pin SOIC
S08 8-bit HCS08 CISC · 8-bit · 40 MHz · 4 KB (4K x 8) flash · 256 x 8 bits · 3.3 V / 5 V · 8-pin SOIC, 0.154 inch (3.90 mm) width · Surface mount

✓ In Stock

$0.95 / Unit

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S9S08SG8E2CSC

✅ Drop-In
📦 8-pin SOIC
Flash increases from 4 KB to 8 KB, a 100% memory increase; other exact electrical differences are not verified

📋 Reference alternative (not in catalog)

S9S08SG4E2CSC Maximum Ratings & Electrical Characteristics

Core S08, 8-bit
Processor Speed 40 MHz
Program Memory 4 KB flash (4K x 8)
RAM Size 256 x 8 bits
Number of I/O 4
Package 8-pin SOIC
Operating Temperature -40°C to +85°C
Series S08
Connectivity I2C, LINbus, SCI, SPI
Peripherals LVD, POR, PWM, WDT
Program Memory Type Flash
Core Processor S08 core
Device Type 8-bit microcontroller
Mounting Style Surface mount
Automotive Qualification Automotive qualified
EEPROM Size Not specified in verified data

S9S08SG4E2CSC 8-pin soic Pin Configuration Guide

Pin configuration for S9S08SG4E2CSC (8-pin soic 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.

8-pin soic package pinout diagram for S9S08SG4E2CSC

No detailed pinout data available for S9S08SG4E2CSC.

Refer to the datasheet for full pin configuration.

Typical Applications

S9S08SG4E2CSC is suitable for 6 applications: Temperature-Sensing Node, LIN Peripheral Controller, Low-Power Monitoring Module, Compact Automotive Sensor Interface, Small Serial Sensor Hub, Compact Industrial Control Node.

🌡️

Temperature-Sensing Node

The S9S08SG4E2CSC fits compact temperature-sensing nodes because the verified data specifically identifies temperature-sensing optimization, 4 KB flash, 4 I/O lines, and low-power monitoring positioning. Place the MCU close to the sensor interface, use one serial peripheral for the sensor, and retain the watchdog for unattended operation. The 40 MHz S08 core provides control headroom, while the 8-pin SOIC package keeps the node mechanically compact. Before schematic release, confirm the exact supply voltage, sensor-interface pin assignments, ADC availability, and conversion timing in the manufacturer datasheet.

🚗

LIN Peripheral Controller

The S9S08SG4E2CSC is a candidate for a LIN peripheral controller because verified listings identify LINbus connectivity and an automotive-qualified S08SG family position. The device can manage a compact slave node while I2C, SCI, or SPI provide local sensor or configuration paths. Its four I/O lines and 4 KB flash support lean firmware rather than a large protocol stack. Confirm whether the exact ordering code includes the required LIN physical-layer interface and verify the package pinout before routing the bus.

🔋

Low-Power Monitoring Module

The S9S08SG4E2CSC suits low-power monitoring modules where a compact controller can periodically read a sensor, evaluate a threshold, and report through a serial interface. Verified data lists watchdog, low-voltage detection, and power-on reset features that support dependable embedded monitoring. Use the 40 MHz core for short control routines without assuming an unverified clock current figure. The 8-pin SOIC package is useful when the enclosure and PCB area are constrained, but battery-life calculations require the exact sleep-current data from the manufacturer documentation.

🚙

Compact Automotive Sensor Interface

The automotive-qualified S9S08SG4E2CSC can be evaluated for compact automotive sensor-interface modules when the design stays within its 8-pin, four-I/O resource budget. The S08 core and 4 KB flash are appropriate for small control loops, while I2C, SCI, SPI, and LINbus provide several possible local communication paths. Automotive use still requires system-level validation of temperature, transient immunity, communication timing, and sourcing. Those qualifications are not fully detailed in the supplied data, so engineering review against current NXP documentation is mandatory.

🧩

Small Serial Sensor Hub

The S9S08SG4E2CSC can act as a small serial sensor hub when the application needs one or more sensors but not a high pin count. Verified connectivity includes I2C, SCI, and SPI, allowing a common controller to normalize readings from different compact sensors. The 4 KB flash limit requires careful firmware budgeting, and the four I/O lines may constrain simultaneous sensor selection or control signals. Validate electrical levels, peripheral pin multiplexing, and timing before assigning multiple bus functions to the same pins.

🏭

Compact Industrial Control Node

The S9S08SG4E2CSC is suitable for a compact general-market control node when the system needs a 40 MHz 8-bit processor, flash-resident firmware, serial connectivity, and a small package. PWM can support simple actuator or indicator timing, while watchdog and low-voltage detection improve basic supervisory behavior. The verified -40°C to +85°C range makes it relevant to equipment outside room-temperature-only conditions, but industrial qualification requirements are not stated. Confirm environmental ratings, EMC expectations, supply tolerances, and production sourcing separately.

What is the S9S08SG4E2CSC?
The S9S08SG4E2CSC is an 8-bit NXP S08-series microcontroller with a 40 MHz core, 4 KB of flash memory, 256 x 8 RAM, and an 8-pin SOIC package. Verified distributor data also identifies automotive qualification and a -40°C to +85°C range. According to the manufacturer product information, it is optimized for temperature-sensing and low-power monitoring applications.
How much flash memory does the S9S08SG4E2CSC have?
The S9S08SG4E2CSC provides 4 KB of flash program memory, organized as 4K x 8 according to verified distributor listings. This is suitable for compact control firmware rather than large application storage. The verified data does not specify a separate EEPROM size, so any design requiring nonvolatile parameter storage should verify the device family documentation before implementation.
What peripherals are available on the S9S08SG4E2CSC?
Verified listings identify I2C, LINbus, SCI, SPI, low-voltage detection, power-on reset, PWM, and a watchdog timer. These interfaces support sensor connections, serial communication, actuator control, and system monitoring. The exact availability and pin multiplexing of each peripheral for this exact orderable part must be confirmed in the manufacturer datasheet before PCB assignment.
Where can I download the S9S08SG4E2CSC datasheet?
The S9S08SG4E2CSC datasheet can be obtained from the verified manufacturer-related PDF link at abc-semi and from the NXP product page listed in the data sources. The PDF result identifies the part as an 8-bit, 40 MHz, 4 KB flash MCU in an 8-pin SOIC package. Download the current manufacturer documentation and verify the exact ordering code before release.
What is the operating temperature range of the S9S08SG4E2CSC?
The verified S9S08SG4E2CSC operating temperature range is -40°C to +85°C. The result also labels the device automotive qualified. That information supports temperature-controlled automotive and industrial-style monitoring designs, but the exact electrical limits, power consumption, and temperature-dependent performance must still be checked in the manufacturer datasheet.
Is the S9S08SG4E2CSC suitable for a LIN-connected sensor node?
The S9S08SG4E2CSC is a reasonable candidate for a LIN-connected sensor node because verified data lists LINbus, I2C, SCI, SPI, PWM, low-voltage detection, and watchdog support. Its 4 KB flash and four I/O lines suit compact monitoring functions. Confirm the physical LIN transceiver interface, pin multiplexing, and electrical timing before selecting it for a production LIN network.
Can the S9S08SG4E2CSC replace an S9S08SG8E2CSC?
The S9S08SG8E2CSC is not a verified drop-in replacement for the S9S08SG4E2CSC because the comparison data identifies 8 KB of flash for the SG8 device versus 4 KB for the SG4. Even if both use an 8-pin SOIC package, memory capacity and potentially associated firmware constraints differ. Treat this as a redesign candidate, not a true drop-in substitute.
What drop-in replacement is available for the S9S08SG4E2CSC?
No verified pin-compatible drop-in replacement is identified in the supplied cross-reference data. The search results contain generic cross-reference tools and comparison pages, but they do not establish a same-package, pin-compatible substitute with verified parameters. The safest course is to retain the original part or obtain an NXP-approved replacement documentation before making a board change.
Where can I buy the S9S08SG4E2CSC online?
The verified data lists DigiKey listings for S9S08SG4E2CSC and shows orderable distributor pages, including NXP USA Inc. and Rochester Electronics entries. Those listings indicate purchasing channels, but exact stock and price are not supplied in the verified data. Contact the distributor for current availability, qualification status, and delivery terms rather than relying on an unverified quantity.
What is the price of the S9S08SG4E2CSC?
The verified data does not provide numeric distributor prices for S9S08SG4E2CSC. DigiKey search results confirm that pricing and availability are presented on the product listings, but no amount is included here. Request a current quote as of 2026-10-21 and compare authorized-channel pricing, stock, and lead time before purchasing.
What is the lead time for the S9S08SG4E2CSC?
A numeric lead time for S9S08SG4E2CSC is not included in the verified data. The distributor pages indicate order and purchasing information, but current inventory and factory lead time must be confirmed with the seller. For production planning, request a dated quotation as of 2026-10-21 that includes pack quantity, authorized sourcing, and any obsolete or lifecycle notices.
When should I choose the S9S08SG4E2CSC?
Choose the S9S08SG4E2CSC when a compact, low-cost 8-bit control node needs 4 KB flash, a 40 MHz S08 core, four I/O lines, and serial peripherals in an 8-pin SOIC package. It is particularly relevant to temperature sensing, low-power monitoring, and LIN-oriented embedded designs. Do not choose it for designs requiring more flash, wider I/O, or undocumented transceiver features.
Is the S9S08SG4E2CSC the same as S9S08SG4E2MSC?
The verified data does not establish that S9S08SG4E2MSC is electrically and pin compatible with S9S08SG4E2CSC. A comparison page exists, but the supplied snippets do not provide enough verified detail to claim a drop-in relationship. Compare the exact pinout, supply range, temperature grade, memory, peripherals, and package markings with the manufacturer documentation.
What are the key specifications of the S9S08SG4E2CSC that engineers should know?
The key verified specifications are an 8-bit S08 core, 40 MHz operation, 4 KB flash, 256 x 8 RAM, four I/O, I2C, LINbus, SCI, SPI, PWM, watchdog, low-voltage detection, power-on reset, an 8-pin SOIC package, and a -40°C to +85°C range. Automotive qualification is also stated in the search results. Supply voltage, exact pinout, and complete timing values remain data-needed.
How much power does the S9S08SG4E2CSC consume?
The supplied verified data does not specify operating or sleep current for the S9S08SG4E2CSC. Its low-power monitoring positioning suggests that power management may be important, but that statement is not a substitute for a measured datasheet value. Review the manufacturer datasheet for active current, sleep current, clock-dependent consumption, and peripheral shutdown behavior before calculating battery life.
Is there a best NXP equivalent for the S9S08SG4E2CSC?
No verified NXP equivalent is identified in the supplied data. The search results point to the original NXP product page and generic cross-reference tools, but they do not establish a same-package, pin-compatible NXP replacement. Use the NXP product page and current family documentation to identify an approved ordering variant, or keep S9S08SG4E2CSC in the approved BOM.

Engineering reference data for S9S08SG4E2CSC — comparison, design guidance, and compliance information.

Selection Guide

Choose S9S08SG4E2CSC for a compact embedded node requiring an 8-bit S08 core, 40 MHz operation, 4 KB flash, four I/O lines, and verified I2C, LINbus, SCI, or SPI connectivity. Its stated automotive qualification and -40°C to +85°C range make it worth evaluating for sensing, monitoring, and compact vehicle electronics. S9S08SG8E2CSC may suit the same broad package-oriented use case when 8 KB flash is preferable, but it is not a guaranteed substitute because the flash capacity doubles. S9S08SG4E2MSC is a candidate for family-level investigation, but the supplied data does not prove pin, voltage, or timing compatibility. Confirm the exact pinout, supply limits, peripheral multiplexing, lifecycle status, and authorized sourcing before production release.

Comparison with Alternatives

Parameter This Product S9S08SG4E2MSC S9S08SG8E2CSC
Package 8-pin SOIC 8-pin SOIC 8-pin SOIC
Brand NXP Semiconductors NXP Semiconductors NXP Semiconductors

Key Differentiators

  • Compact 4 KB flash configuration (vs S9S08SG8E2CSC)
  • Verified automotive positioning (vs S9S08SG4E2MSC)
  • Low-power monitoring orientation (vs S9S08SG8E2CSC)
  • Documented serial-interface set (vs S9S08SG4E2MSC)

Design Notes

Do not substitute based only on the 8-pin SOIC package. The S9S08SG8E2CSC comparison result identifies 8 KB of flash versus 4 KB for S9S08SG4E2CSC, so the memory difference can invalidate firmware assumptions even when the package looks compatible. Obtain the exact manufacturer pinout and ordering-code documentation before treating any related MPN as a replacement.

Reserve decoupling and programming-test access close to the device, but use the exact recommended values from the manufacturer datasheet rather than estimating values from the 40 MHz core. Because the complete pinout and power requirements are not included in the verified data, finalize capacitor placement, ground return, programming interface, and exposed routing only after the exact S9S08SG4E2CSC documentation is reviewed.

Verify supply voltage, active current, sleep current, and brownout behavior before designing a battery-powered monitor. The verified data identifies low-power monitoring and low-voltage detection but does not provide numeric power values. Estimate battery life only after those values and the actual duty cycle are known, then include margin for temperature and component tolerances.

Confirm which of I2C, LINbus, SCI, and SPI are available on the exact package pins and whether any transceiver or termination components are required. Four I/O lines may not support every listed interface simultaneously. Keep communication traces away from switching nodes and provide the required pull resistors and bus termination according to the selected interface and board-level design.

The verified operating range is -40°C to +85°C, but no thermal resistance or power dissipation data is provided. Validate enclosure temperature, self-heating, and startup behavior across the complete range using the manufacturer limits and the measured board load. Do not infer automotive or industrial thermal suitability solely from the stated temperature range.

Compliance Information

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
Lead Free
Unknown
Halogen Free
Unknown
Conflict Minerals
Unknown

The verified search result states automotive qualified, but no specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals certification was supplied. Automotive qualification must not be interpreted as an AEC-Q100 claim without explicit manufacturer evidence.

Related Searches

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Related Components & Terms

NXP Semiconductors S9S08SG4E2CSC S9S08SG4E2MSC S9S08SG8E2CSC S08 core 8-bit microcontroller embedded controller microcontroller semiconductor 4 KB flash 40 MHz 256 x 8 RAM I2C LINbus SCI SPI PWM watchdog timer low-voltage detection power-on reset temperature sensing low-power monitoring automotive electronics 8-pin SOIC SOIC package surface-mount package DigiKey Rochester Electronics
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