S9S08SL8F1MTL - 8-bit 40MHz MCU 8KB Flash 28-TSSOP | NXP
MPN: S9S08SL8F1MTL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.25 | $22.50 |
| 100 | $2.05 | $205.00 |
| 500 | $1.88 | $940.00 |
| 1,000 | $1.72 | $1,720.00 |
S9S08SL8F1MTL Overview
An 8-bit microcontroller is a single-chip computer whose CPU processes 8-bit data words. Within the power-management IC hierarchy, MCUs like the S08SL8 sit at the lowest-complexity tier of NXP's embedded processor range, below the 16-bit and 32-bit families, and are optimized for cost-sensitive, low-pin-count control tasks such as body electronics, sensor interfacing, and serial communication nodes.
Key features include 16-channel 10-bit ADC with 2.5 us conversion time, automatic compare function, internal temperature sensor, and internal bandgap reference channel; a LIN bus-capable serial interface set (I2C, LINbus, SCI, SPI); and system peripherals including LVD, POR, PWM, and a watchdog timer (WDT). The embedded EEPROM allows calibration data and configuration values to be stored without external memory, a significant advantage in LIN slave designs.
The S08SL family (0.25 um SGF process) is designed around NXP's embedded slave LIN interface controller (SLIC) concept, which increases LIN slave performance and reduces development time. The CISC S08 core delivers 40 MHz operation, and the oscillator accepts an external source for applications requiring precise timing. The SL family emphasizes ultra-low-power stop modes for battery-connected nodes.
Typical applications include automotive LIN slave modules (window lifters, seat controllers, mirror adjusters), battery-powered portable electronics, and small industrial sensor nodes where a 10-bit ADC and LIN connectivity on a 28-pin footprint are sufficient.
Design consideration: because the S08SL8 provides only 8KB of Flash and 512B of RAM, firmware footprint should be validated early; the pin-compatible S9S08SL16F1MTLR doubles Flash at 16KB for headroom without PCB change.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for S9S08SL8F1MTL — 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 S9S08SL8F1MTL (same form factor and footprint) — differing in Core Processor, EEPROM Size, Program Memory Size, RAM Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
S9S08SL16F1MTLR
✅ Drop-In📋 Reference alternative (not in catalog)
S9S08EL16F1MTL
✅ Drop-In📋 Reference alternative (not in catalog)
S9S08EL32F1MTL
✅ Drop-In✓ In Stock
$3.15 / Unit
View Datasheet →S9S08EL32F1CTLR
✅ Drop-In📋 Reference alternative (not in catalog)
S9S08SG16E1CTLR
✅ Drop-In📋 Reference alternative (not in catalog)
S9S08SL8F1MTL Maximum Ratings & Electrical Characteristics
| Core Processor | S08 |
| Core Size | 8-Bit |
| Instruction Set | CISC |
| Maximum Clock Speed | 40 MHz |
| Program Memory Size | 8KB (8K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 512 x 8 |
| EEPROM Size | 256 x 8 |
| Number of I/O | 22 |
| ADC Resolution | 10-bit |
| ADC Channels | 16 |
| ADC Conversion Time | 2.5 us |
| Connectivity | I2C, LINbus, SCI, SPI |
| Peripherals | LVD, POR, PWM, WDT |
| Supply Voltage | 3.3 V / 5 V |
| Operating Temperature | -40C to +125C |
| Package / Case | 28-TSSOP (0.173 in, 4.40 mm width) |
| Mounting Type | Surface Mount |
| Oscillator Type | External |
| Packaging | Tube |
| Grade | Automotive |
| Process | 0.25 um SGF |
S9S08SL8F1MTL 28-tssop (0.173 in, 4.40 mm width) Pin Configuration Guide
Pin configuration for S9S08SL8F1MTL (28-tssop (0.173 in, 4.40 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 S9S08SL8F1MTL.
Refer to the datasheet for full pin configuration.
Typical Applications
S9S08SL8F1MTL is suitable for 6 applications: Automotive LIN Slave Modules, Battery-Powered Portable Electronics, Industrial Sensor Nodes, Motor and Actuator Control, Home Appliance Control, Lighting and Load Control.
Automotive LIN Slave Modules
The S9S08SL8F1MTL is purpose-built for LIN slave nodes in automotive body electronics. Its embedded slave LIN interface controller (SLIC) offloads LIN protocol handling from firmware, and the on-chip 256B EEPROM stores node configuration and calibration IDs without external memory. The 16-channel 10-bit ADC with 2.5 us conversion time reads position sensors and analog diagnostics directly. Rated -40C to +125C, the device suits mechatronic modules such as window lifters, seat adjusters, and mirror controllers, where the 28-TSSOP footprint keeps PCB area minimal inside actuator housings.
Recommended
Battery-Powered Portable Electronics
NXP positions the S9S08SL8 as an ultra-low-power 8-bit MCU with 16-bit timer for compact portable and battery applications. The S08 core's stop3 mode keeps the 10-bit ADC running while current draw stays minimal, and the low-voltage detection (LVD) and power-on-reset (POR) peripherals guarantee predictable behavior as the battery discharges. With 8KB Flash and 512B RAM, simple battery-monitoring and user-interface firmware fits comfortably, while the internal temperature sensor and bandgap reference support fuel-gauging approximations without extra components on space-constrained 28-TSSOP layouts.
Recommended
Industrial Sensor Nodes
In industrial sensing, the S9S08SL8F1MTL combines a 16-channel 10-bit ADC (2.5 us conversion, automatic compare function) with I2C, SPI, and SCI serial links, allowing direct connection of analog sensors to a small control network. The external oscillator option provides timing accuracy for polled measurement loops, and the watchdog timer guards against firmware lockups in unattended installations. The 28-TSSOP surface-mount package withstands the -40C to +125C industrial temperature envelope, and tube packaging simplifies medium-volume assembly for panel controllers and simple actuator interfaces.
Recommended
Motor and Actuator Control
The S9S08SL8F1MTL's PWM peripheral and 40 MHz S08 core make it adequate for small DC motor and actuator control tasks such as HVAC flaps, mirror positioning, and latch actuators. The ADC's automatic compare function can trigger on current-threshold crossings without CPU intervention, enabling basic over-current protection in firmware-light designs. The 22 GPIO lines drive H-bridge enable inputs and feedback switches, while LIN connectivity links the actuator to a body-controller master node - the classic SL-family deployment scenario in automotive mechatronics.
Recommended
Home Appliance Control
Appliance control boards benefit from the S9S08SL8F1MTL's blend of low cost, on-chip EEPROM for user settings, and a 10-bit ADC for NTC temperature sensing and knob position reading. The SCI and I2C interfaces drive segment LCD drivers or UART links to display modules. Its 5 V operation simplifies interfacing with legacy appliance electronics that still run unregulated 5 V rails, and the internal LVD ensures safe resets during mains brownouts. The 28-TSSOP package suits single-layer cost-optimized control PCBs common in white-goods subassemblies.
Recommended
Lighting and Load Control
For LED lighting and relay-based load controllers, the S9S08SL8F1MTL generates PWM dimming or switching waveforms from its timer peripherals, while the 10-bit ADC samples current shunts or potentiometer level inputs with 2.5 us conversions. The LIN interface allows luminaires to join automotive or building LIN segments, and the EEPROM retains last-state and dimming-level settings across power cycles. The 40 MHz bus supports fast phase-angle calculations for triac-based dimmers, all within the low-pin-count 28-TSSOP footprint that fits compact driver boards.
Recommended
Recommended Products Summary
Engineering reference data for S9S08SL8F1MTL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | S9S08SL16F1MTLR | S9S08EL16F1MTL | S9S08EL32F1MTL | S9S08EL32F1CTLR | S9S08SG16E1CTLR |
|---|---|---|---|---|---|---|
| Package | 28-TSSOP (4.40 mm) | 28-TSSOP (4.40 mm) - same | 28-TSSOP (4.40 mm) - same | 28-TSSOP (4.40 mm) - same | 28-TSSOP-class - verify suffix | 28-TSSOP - same per Utmel |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core / Speed | S08, 8-bit, 40 MHz | S08, 8-bit, 40 MHz | S08, 8-bit, 40 MHz | S08, 8-bit, 40 MHz | S08, 8-bit, 40 MHz | S08, 8-bit, 40 MHz |
| Flash Memory | 8KB | 16KB | 16KB | 32KB | 32KB | 16KB |
| Family / LIN Slave Focus | S08SL with SLIC module | S08SL with SLIC module | S08EL, LIN slave with EEPROM | S08EL, LIN slave with EEPROM | S08EL, LIN slave with EEPROM | S08SG, general purpose |
| Typical Application | Automotive LIN slave, portable | Automotive LIN slave (larger firmware) | LIN slave with EEPROM | LIN slave, feature-rich nodes | LIN slave, feature-rich nodes | General-purpose control |
Key Differentiators
- Purpose-built LIN slave controller at lowest cost point (vs S9S08SG16E1CTLR)
- Lowest code density in an identical footprint (vs S9S08SL16F1MTLR)
- On-chip EEPROM for calibration data (vs S9S08SG16E1CTLR)
Design Notes
Budget firmware against the 8KB Flash and 512B RAM ceiling early in the project. LIN slave stacks with diagnostics plus a small application can approach the limit; the automatic compare function and SLIC module reduce CPU and code overhead, but table-driven code and floating point will not fit comfortably. If the estimate exceeds roughly 6KB, design in the pin-compatible S9S08SL16F1MTLR footprint from day one so the upgrade requires no PCB change.
The device operates from 3.3 V or 5 V; on 5 V rails ensure the analog reference for the 10-bit ADC is clean, since the internal bandgap reference channel and temperature sensor accuracy depend on supply stability. Use the low-voltage detection (LVD) threshold appropriate to your supply so reset occurs before Flash corruption during brownouts. In stop3 mode, keep ADC usage within datasheet stop-mode operating limits for low-power battery designs.
The 28-TSSOP with 0.65 mm lead pitch requires standard SMD footprints with proper thermal relief on ground pins; use the exposed-land pattern per IPC-specified TSSOP dimensions and verify the 4.40 mm body width footprint against the NXP mechanical drawing. Decouple VDD with a 100 nF ceramic capacitor placed within 3 mm of the supply pin, plus bulk capacitance at the board entry point. The external oscillator layout should keep the crystal or clock trace short and away from switching signals.
Compliance Information
NXP product page lists Environmental Quality documentation for this part; the device is marketed as automotive-grade per distributor data (AiPCBA). REACH and halogen-free status should be confirmed via the NXP environmental quality portal for this exact ordering code.
