NXP Semiconductors S9S08SG8E2VTGR

Overview

S9S08SG8E2VTGR from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 8 KB flash, 512 B RAM, and integrated ADC, ACMP, SCI, SPI, I²C, TPM, RTC, and background debug interface. 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 AEC-Q100 qualification and extended temperature operation.

For engineers reviewing the S9S08SG8E2VTGR datasheet, S9S08SG8E2VTGR pinout, S9S08SG8E2VTGR application, or S9S08SG8E2VTGR equivalent, key selection criteria include its 16-pin TSSOP package, -40 °C to +150 °C operating range, on-chip 10-bit ADC with temperature sensor, real-time counter with 1 kHz internal oscillator, and single-wire background debug interface for in-circuit development.

Technical Context

The S9S08SG8E2VTGR implements the HCS08 CPU core with HC08 instruction set extension (including 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 without external crystal.

Peripherals include a 12-channel 10-bit ADC with 2.5 μs conversion time and automatic compare, a 5-V analog comparator with edge-selectable interrupt and bandgap reference option, and dual 2-channel TPM modules supporting input capture, output compare, and PWM generation. All critical peripherals-including ADC, ACMP, RTC, and SCI-remain functional in stop3 mode.

Key Specifications

Pinout & Package

Package: 16-pin TSSOP (lead-free, RoHS-compliant, moisture sensitivity level 3). This package supports high-temperature operation up to +150 °C and is not available in 20-TSSOP or 8-SOIC variants for this grade.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08SG4E2VTGR and S9S08SG16E2VTGR, the S9S08SG8E2VTGR delivers optimal balance of memory headroom, peripheral integration, and thermal robustness for mid-tier automotive and industrial control - avoiding over-provisioning while ensuring upgrade path to 16 KB if needed.

Availability

S9S08SG8E2VTGR is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart actuator drivers, and appliance motor controllers requiring stable component supply across extended temperature and long product lifecycles.

Supply support for S9S08SG8E2VTGR 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 company formed from the spin-off of Philips' semiconductor division, now specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The S9S08SG8E2VTGR belongs to NXP's legacy HCS08 microcontroller family, designed specifically for cost-sensitive, high-reliability embedded control applications where extended temperature operation, low-power sleep modes, and integrated analog peripherals reduce BOM count and board space.

FAQ

What is the maximum operating temperature supported by the S9S08SG8E2VTGR?

The S9S08SG8E2VTGR is qualified for operation from −40 °C to +150 °C per AEC-Q100 Grade 0 specifications. This high-temperature rating is enabled by its 16-pin TSSOP package and process optimization, making it suitable for under-hood automotive applications and industrial environments where ambient heat exceeds standard commercial-grade limits. The S9S08SG8E2VTGR maintains full functionality - including ADC, RTC, and stop3 mode - across this entire range.

Does the S9S08SG8E2VTGR support in-circuit debugging without additional hardware?

Yes, the S9S08SG8E2VTGR integrates a single-wire background debug (BDM) interface accessible via the BKGD/MS pin. This allows full in-circuit emulation - including breakpoints, memory inspection, register read/write, and real-time execution control - using only a standard BDM pod or compatible debugger. No external JTAG header or auxiliary circuitry is required, reducing debug footprint and simplifying PCB layout for the S9S08SG8E2VTGR.

Can the S9S08SG8E2VTGR operate without an external crystal?

Yes, the S9S08SG8E2VTGR can operate entirely from its internal clock source (ICS) module, which includes a frequency-locked loop (FLL) and precision-trimmed internal reference oscillator. This configuration supports bus frequencies from 2 MHz to 20 MHz and eliminates the need for external crystals or resonators - a key advantage for cost-sensitive and space-constrained designs using the S9S08SG8E2VTGR.

What low-power modes are available on the S9S08SG8E2VTGR, and which peripherals remain active in stop3 mode?

The S9S08SG8E2VTGR supports two very low-power stop modes (stop2, stop3), reduced-power wait mode, and real-time interrupt capability in all states. In stop3 mode - its deepest low-power state - the S9S08SG8E2VTGR retains RAM and register contents while keeping the RTC, ADC, ACMP, SCI, and TPM modules fully operational and capable of generating wake-up events. Typical stop3 current is less than 1 μA.

Is the S9S08SG8E2VTGR pin-compatible with other members of the SG8 family?

Yes, the S9S08SG8E2VTGR is pin-compatible with other 16-pin TSSOP variants in the MC9S08SG8 family, including the MC9S08SG4E2VTGR and S9S08SG16E2VTGR. All share identical pin assignments, electrical characteristics, and thermal specifications - enabling drop-in memory scalability within the same PCB layout. This compatibility simplifies design reuse and migration paths for the S9S08SG8E2VTGR across different firmware complexity tiers.