NXP Semiconductors S9S08SG8E2VTG

Overview

S9S08SG8E2VTG from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 8 KB flash, 512 B RAM, and integrated peripherals including 10-bit ADC, analog comparator, SCI, SPI, I²C, TPM PWM timers, and RTC. It operates at up to 40 MHz (36 MHz above 125 °C), supports stop3 low-power mode, and targets automotive body electronics and industrial control systems requiring extended temperature operation.

For engineers reviewing the S9S08SG8E2VTG datasheet, S9S08SG8E2VTG pinout, S9S08SG8E2VTG application, or S9S08SG8E2VTG equivalent, key selection criteria include its -40 °C to 150 °C operating range, single-wire background debug interface, on-chip 1-kHz real-time counter oscillator, flash block protection, and support for LIN-compliant SCI wake-up and break detection.

Technical Context

The S9S08SG8E2VTG implements the HCS08 CPU core with HC08 instruction set plus BGND, supporting up to 32 interrupt/reset sources and two very low-power stop modes. Its internal clock source (ICS) uses a frequency-locked loop (FLL) with precision-trimmed internal reference (±1.5% deviation from –40 °C to 125 °C; ±3% above 125 °C), enabling bus frequencies from 2 MHz to 20 MHz.

Peripherals include a 12-channel 10-bit ADC with 2.5 μs conversion time and temperature sensor, dual 2-channel TPM modules supporting edge- or center-aligned PWM, and an 8-bit real-time counter with external clock input or free-running 1-kHz on-chip oscillator - all functional in stop3 mode. The SCI module supports LIN master break generation and slave break detection.

Key Specifications

Pinout & Package

Package: 16-pin TSSOP (lead-free, RoHS-compliant), qualified for operation up to 150 °C. Not available in 20-TSSOP or 8-SOIC due to high-temperature rating constraints.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with MC9S08SG4E2VTG and S9S08SG16E2VTG, the S9S08SG8E2VTG provides optimal balance of memory headroom, thermal robustness, and peripheral integration for mid-complexity automotive and industrial controllers - avoiding over-provisioning while ensuring qualification margin for 150 °C operation.

Availability

S9S08SG8E2VTG is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, smart lighting systems, and medical device subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for S9S08SG8E2VTG 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 focused on secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Freescale's embedded MCU heritage.

The S9S08SG8E2VTG belongs to the HCS08 family - designed specifically for cost-sensitive, high-reliability embedded control in harsh environments where extended temperature operation, low-power sleep modes, and integrated analog peripherals reduce BOM count.

FAQ

What is the maximum operating temperature specification for the S9S08SG8E2VTG?

The S9S08SG8E2VTG is qualified for continuous operation from –40 °C to +150 °C, making it suitable for under-hood automotive applications and industrial environments with elevated ambient temperatures. This rating applies specifically to the 16-TSSOP package variant and is documented in Revision 8 of the MC9S08SG8 data sheet released in January 2014.

Does the S9S08SG8E2VTG support LIN communication natively?

Yes, the S9S08SG8E2VTG's SCI module includes hardware-level LIN 2.x compliance features: extended break generation for master nodes and extended break detection for slave nodes. This eliminates bit-banging overhead and ensures timing accuracy for automotive body network communication without additional transceivers.

Can the S9S08SG8E2VTG retain RTC operation during deep sleep modes?

Yes, the S9S08SG8E2VTG maintains RTC functionality in all operating modes including stop3. Its 8-bit real-time counter can run from either an external clock source or the dedicated on-chip 1-kHz low-power oscillator - enabling precise wake-up scheduling without external components or power rail dependencies.

What debug interface does the S9S08SG8E2VTG use, and what capabilities does it offer?

The S9S08SG8E2VTG uses a single-wire background debug (BDM) interface compliant with the Freescale BDM specification. It supports in-circuit debugging with one hardware breakpoint, on-chip emulation via an ICE module with eight-deep FIFO, and tag/force breakpoint triggering - all accessible through standard NXP-compatible debug probes.

How is flash memory protected against accidental overwrite or unauthorized access on the S9S08SG8E2VTG?

The S9S08SG8E2VTG implements flash block protection via the FPROT register and non-volatile NVPROT register. Protection is configurable per 512-byte block, preventing program/erase operations and read access. This feature is essential for securing bootloaders and calibration data in safety-critical automotive and medical applications.