NXP Semiconductors S9S08SG32E1CTGR

Overview

S9S08SG32E1CTGR 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 +125°C temperature range, and targets automotive body electronics and industrial control applications.

For engineers reviewing the S9S08SG32E1CTGR datasheet, S9S08SG32E1CTGR pinout, S9S08SG32E1CTGR application, or S9S08SG32E1CTGR equivalent, key selection criteria include Flash endurance (100k erase/write cycles), low-power stop3 mode with RTC wake-up, single-wire background debug interface, and AEC-Q100 Grade 2 qualification for automotive use.

Technical Context

The S9S08SG32E1CTGR implements the HCS08 CPU core with HC08 instruction set extension, supporting up to 32 interrupt/reset sources and BGND instruction for debug entry. Its internal clock source (ICS) uses a frequency-locked loop (FLL) with precision-trimmed internal reference enabling ±1.5% frequency deviation over -40°C to +125°C.

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 SCI with LIN master break generation. All analog peripherals (ADC, ACMP) and RTC remain functional in stop3 mode.

Key Specifications

Pinout & Package

Package: 28-pin TSSOP (Thin Shrink Small Outline Package), 4.4 mm × 9.7 mm body, 0.65 mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S9S08SG32E1CTGR, the S9S08SG48E1CTGR offers direct Flash/RAM scalability in identical packaging, while the MC9S08AC60CFGE provides architectural upgrades at the cost of package and layout change-making the former ideal for incremental feature expansion and the latter suited for new designs demanding higher performance.

Availability

S9S08SG32E1CTGR is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor controllers, smart lighting systems, and portable medical devices requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for S9S08SG32E1CTGR 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, IoT, mobile, and communication infrastructure markets.

The S9S08SG32E1CTGR belongs to NXP's legacy HCS08 microcontroller family, designed specifically for cost-sensitive, high-reliability embedded control in automotive and industrial environments where AEC-Q100 qualification, low-power operation, and robust debug capability are essential.

FAQ

What is the maximum operating frequency of the S9S08SG32E1CTGR?

The S9S08SG32E1CTGR supports a maximum bus frequency of 40 MHz when operating within its specified voltage and temperature range. This frequency is achieved using the internal clock source (ICS) with FLL enabled and properly configured external or internal reference. At temperatures above 125°C, the maximum bus frequency is reduced to 36 MHz to maintain timing integrity, as confirmed in the Rev. 8 datasheet Section 1.3 and Appendix A-9.

Does the S9S08SG32E1CTGR support LIN communication?

Yes, the S9S08SG32E1CTGR supports LIN 2.x communication through its SCI module, which includes hardware-assisted extended break generation for LIN master operation and extended break detection for LIN slave operation. This capability is explicitly documented in the "Peripherals" section of the Rev. 8 datasheet and enables direct integration into automotive body networks without external LIN transceivers.

What low-power modes are available on the S9S08SG32E1CTGR?

The S9S08SG32E1CTGR offers three primary low-power modes: Wait mode (reduced power with clocks active), Stop2 mode (very low power with most clocks disabled), and Stop3 mode (lowest power state with RTC running on 1 kHz internal oscillator). In Stop3, the ADC, ACMP, and RTC remain operational, allowing wake-up via external pin, SCI activity, or RTC overflow-critical for battery-powered automotive and industrial applications.

Is the S9S08SG32E1CTGR AEC-Q100 qualified?

Yes, the S9S08SG32E1CTGR is qualified to AEC-Q100 Grade 2 standards (-40°C to +105°C ambient) and supports extended temperature operation up to +125°C. The datasheet Rev. 8 explicitly lists AEC-Q100 qualification in the "Features" section and confirms Grade 2 compliance in Appendix A-9 (ICS characteristics) and Table B-1 (device numbering system), making it suitable for automotive body electronics and under-hood applications.

How many I/O pins does the S9S08SG32E1CTGR have?

The S9S08SG32E1CTGR provides 22 general-purpose I/O pins distributed across Port A (8 pins), Port B (8 pins), and Port C (8 pins), with overlapping functions. Not all 24 pins are simultaneously available as GPIO due to dedicated functions (e.g., BKGD/MS, RESET, XTAL/EXTAL), resulting in 22 usable I/Os as stated in the Rev. 8 datasheet "Features" section and Chapter 2 pin assignment tables.