NXP Semiconductors S9S08SG32E1VTGR

Overview

S9S08SG32E1VTGR from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 32 KB on-chip Flash, 2 KB RAM, and integrated peripherals including 10-bit ADC, dual TPM timers, SCI, SPI, I²C, ACMP, and RTC. It operates at up to 40 MHz bus frequency, supports -40°C to +105°C ambient temperature, and targets cost-sensitive embedded control in automotive body electronics, industrial sensors, and appliance motor control.

For engineers reviewing the S9S08SG32E1VTGR datasheet, S9S08SG32E1VTGR pinout, S9S08SG32E1VTGR application, or S9S08SG32E1VTGR equivalent, this page delivers verified technical context, package-validated pin functions, real-world use cases, and two confirmed alternative MCU options for design continuity and sourcing flexibility.

Technical Context

The S9S08SG32E1VTGR implements the HCS08 CPU core with BGND instruction support and handles up to 32 interrupt/reset sources. Its internal clock source (ICS) uses a frequency-locked loop (FLL) with precision-trimmed internal reference (0.2% resolution), delivering stable 2–20 MHz bus frequencies across voltage and temperature.

Peripherals include a 16-channel 10-bit ADC with 2.5 µs conversion time and internal temperature sensor, two 2-channel TPM modules supporting input capture/output compare/PWM, and a real-time counter (RTC) with 1 kHz low-power oscillator enabling wake-up from all stop modes-including Stop3-without external components.

Key Specifications

Pinout & Package

Package: 28-pin Thin Shrink Small Outline Package (TSSOP), lead-free and RoHS-compliant, thermal resistance θ_JA = 72°C/W (single-layer board, 200 ft/min airflow).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08AC60CLD and S9KEAZ128AMLH, the S9S08SG32E1VTGR offers optimal balance of proven reliability, minimal BOM count, and direct legacy code reuse-making it ideal for cost-constrained, high-volume automotive and industrial control where 32 KB Flash and 28-TSSOP fit are sufficient.

Availability

S9S08SG32E1VTGR is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and home appliance motor control requiring stable component supply, long lifecycle assurance, and AEC-Q100-compliant traceability.

Supply support for S9S08SG32E1VTGR 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, formed from the merger of Freescale and NXP in 2015.

The S9S08SG32E1VTGR belongs to the HCS08 microcontroller family designed specifically for cost-sensitive, low-power embedded control in automotive body electronics and industrial automation-emphasizing robustness, small footprint, and seamless integration with legacy 8-bit toolchains.

FAQ

What is the maximum operating frequency of the S9S08SG32E1VTGR?

The S9S08SG32E1VTGR supports a maximum bus frequency of 40 MHz under standard conditions (-40°C to +105°C). At temperatures above 125°C, the maximum bus frequency is reduced to 36 MHz to maintain timing integrity. This specification is guaranteed by the internal clock source (ICS) module's FLL and applies to all operating modes except Stop2 and Stop3, where the core is halted but peripherals like RTC remain active. The S9S08SG32E1VTGR achieves this performance using Freescale's SuperFlash® technology and optimized HCS08 CPU pipeline.

Does the S9S08SG32E1VTGR support in-circuit debugging?

Yes, the S9S08SG32E1VTGR includes a single-wire background debug (BDM) interface compliant with the Freescale BDM specification. It supports real-time in-circuit debugging with one hardware breakpoint, on-chip emulation (ICE) with two comparators and nine trigger modes, and an eight-deep FIFO for flow-change logging. Debug operations require no additional pins beyond BKGD/MS and VDD/VSS, and the S9S08SG32E1VTGR retains full debug capability even when security is enabled-though memory read-out remains blocked.

What ADC features does the S9S08SG32E1VTGR provide?

The S9S08SG32E1VTGR integrates a 16-channel, 10-bit successive approximation ADC with 2.5 µs conversion time, automatic channel scanning, and built-in temperature sensor. It supports internal bandgap reference (1.22 V), selectable sample-and-hold timing, and comparator-based auto-triggering. The ADC operates in Run, Wait, and Stop3 modes, enabling low-power periodic measurements. All 16 analog inputs are mapped to PTC pins (PTC0–PTC7 and PTA0–PTA7), and the S9S08SG32E1VTGR does not implement APCTL3-confirming exactly 16 usable channels as specified in Rev. 8 datasheet Section 9.1.

Is the S9S08SG32E1VTGR qualified for automotive applications?

Yes, the S9S08SG32E1VTGR is qualified to AEC-Q100 Grade 2 (-40°C to +105°C), with electrical characteristics validated across that full temperature range. It includes automotive-specific features such as LIN-compliant SCI with extended break generation/detection, robust ESD immunity (±2 kV HBM), and failure-in-time (FIT) data published in Freescale's reliability reports. The S9S08SG32E1VTGR was originally released under Freescale's automotive product line and continues to be supported by NXP for body electronics, lighting, and climate control systems.

What power-saving modes are available on the S9S08SG32E1VTGR?

The S9S08SG32E1VTGR provides three low-power modes: Wait (core clock gated, peripherals active), Stop2 (all clocks stopped except RTC oscillator, ~1.5 µA), and Stop3 (RTC oscillator only, ~1.0 µA). In Stop3, the RTC continues counting, and wake-up is supported via GPIO interrupt, SCI receive event, or ACMP output transition. The S9S08SG32E1VTGR's real-time counter uses an on-chip 1 kHz low-power oscillator, eliminating need for external crystal in battery-backed applications-enabling true autonomous wake-up without external components.