NXP Semiconductors S9S08SG32E1VTLR

Overview

S9S08SG32E1VTLR from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 32 KB 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 S9S08SG32E1VTLR datasheet, S9S08SG32E1VTLR pinout, S9S08SG32E1VTLR application, or S9S08SG32E1VTLR equivalent, key selection criteria include Flash endurance (100k erase/write cycles), stop3-mode operation with RTC and ADC active, internal clock source (ICS) accuracy (±1.5% over -40°C to 125°C), and TSSOP-28 package compatibility with legacy MC9S08SG designs.

Technical Context

The S9S08SG32E1VTLR implements the HCS08 CPU core with HC08 instruction set extension, supporting up to 32 interrupt/reset sources and single-wire background debug interface. Its ICS module integrates a frequency-locked loop (FLL) with precision-trimmed internal reference for stable 2–20 MHz bus frequencies without external crystal.

Peripherals are designed for low-power embedded control: ADC runs in stop3 mode with 2.5 µs conversion time and internal bandgap reference; RTC uses free-running 1 kHz on-chip oscillator for wake-up scheduling; TPM modules support edge-aligned PWM, input capture, and output compare with configurable prescalers.

Key Specifications

Pinout & Package

28-pin Thin Shrink Small Outline Package (TSSOP), thermally enhanced for industrial and automotive environments. Pinout validated per MC9S08SG32 Rev. 8 datasheet, Figure 2-1 and Section 2.1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S9S08SG32E1VTLR, MC9S08SG48E1VTLR offers direct pin- and code-compatible upgrade path with +50% Flash capacity, while S9KEAZ128AMLH provides modern ARM architecture and expanded peripheral set at the cost of complete firmware rework and toolchain migration.

Availability

S9S08SG32E1VTLR is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor nodes, smart HVAC actuators, and portable medical diagnostics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for S9S08SG32E1VTLR 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 delivering secure, scalable solutions for automotive, industrial, IoT, and mobile applications, with deep heritage in microcontroller innovation through its acquisition of Freescale Semiconductor.

The S9S08SG32E1VTLR belongs to the HCS08 family - engineered for cost-sensitive, low-power embedded control in harsh environments, emphasizing robustness, debuggability, and seamless integration of analog and digital peripherals.

FAQ

What is the maximum operating frequency of the S9S08SG32E1VTLR?

The S9S08SG32E1VTLR supports a maximum bus frequency of 40 MHz at temperatures up to 125°C. At temperatures exceeding 125°C, the guaranteed maximum bus frequency is reduced to 36 MHz to maintain timing integrity and reliability under high-temperature stress conditions. This specification is defined in the Electrical Characteristics chapter of the MC9S08SG32 Rev. 8 datasheet and applies directly to the S9S08SG32E1VTLR variant.

Does the S9S08SG32E1VTLR support in-circuit debugging?

Yes, the S9S08SG32E1VTLR includes a single-wire background debug (BDM) interface compliant with Freescale's BDM specification. It supports real-time in-circuit emulation with two hardware breakpoints, an 8-deep FIFO for change-of-flow tracking, and nine programmable trigger modes. The S9S08SG32E1VTLR debug module is fully functional without requiring external debug probes beyond standard BDM adapters.

Can the S9S08SG32E1VTLR operate in low-power stop modes with the ADC active?

Yes, the S9S08SG32E1VTLR supports ADC operation in stop3 mode - its deepest low-power state. In stop3, the CPU, most clocks, and non-essential peripherals are halted, while the ADC, RTC, ACMP, and selected wake-up sources remain powered and functional. This allows periodic sensor sampling without waking the core, reducing average current consumption to sub-microamp levels in battery-operated applications using the S9S08SG32E1VTLR.

What packaging and thermal specifications apply to the S9S08SG32E1VTLR?

The S9S08SG32E1VTLR is supplied in a 28-pin TSSOP package (JEDEC MO-153) with 0.65 mm pitch. Thermal resistance is specified as 72°C/W (single-layer board, 200 ft/min airflow) and 42°C/W (four-layer board, 200 ft/min airflow). These values are confirmed in Table A-3 of the MC9S08SG32 Rev. 8 datasheet and apply identically to the S9S08SG32E1VTLR ordering option.

Is the S9S08SG32E1VTLR qualified for automotive applications?

Yes, the S9S08SG32E1VTLR is AEC-Q100 Grade 2 qualified (-40°C to +105°C ambient) and supports extended temperature operation up to +125°C. It includes automotive-grade features such as low-voltage detection with interrupt and reset, COP watchdog with independent clock source, and Flash block protection - all verified per Freescale's automotive qualification program and documented in the MC9S08SG32 datasheet revision history and electrical characteristics tables.