NXP Semiconductors S9S08RN16W2VTJ

Overview

S9S08RN16W2VTJ from NXP Semiconductors (formerly Freescale) is an automotive-grade 8-bit S08 microcontroller featuring a 20 MHz bus frequency, 16 KB flash memory, 256-byte EEPROM with ECC, and 2 KB RAM, operating across -40 °C to 125 °C for engine control, body electronics, and sensor interface applications.

For engineers reviewing the S9S08RN16W2VTJ datasheet, S9S08RN16W2VTJ pinout, S9S08RN16W2VTJ application, or S9S08RN16W2VTJ equivalent, this page delivers verified electrical specs, thermal behavior at extended temperature, low-power stop3 mode current (4.6 µA), I/O drive strength (20 mA sink/source on PTB4/PTB5), and peripheral timing constraints per Rev 1 (02/2014) data sheet.

Technical Context

The S9S08RN16W2VTJ implements an S08 CPU core with four-level nested interrupt support and up to 40 interrupt/reset sources. Its clock system integrates a loop-controlled Pierce oscillator (XOSC) and an internal clock source (ICS) with FLL, enabling precise 1–2% frequency stability across -40 °C to 125 °C via factory-trimmed internal reference.

System protection includes independent watchdog timer, configurable low-voltage detection (LVD) with four warning thresholds in high/low ranges, illegal opcode/address detection, and flash/RAM access protection. Debug is enabled via single-wire background debug interface (BDM) with three breakpoints and on-chip ICE module supporting nine trigger modes.

Key Specifications

Pinout & Package

Package: 20-pin TSSOP (JEDEC MO-153, 4.4 mm × 6.5 mm, 0.65 mm pitch). Thermal resistance θJA = 116 °C/W (single-layer board).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S9S08RN16W2VTJ, MC9S08RN8W2VTJ reduces memory and EEPROM for cost savings in simpler applications, while S9S08RN16W2MLF expands I/O and thermal headroom in larger systems-neither is pin-compatible due to differing pin counts and package footprints.

Availability

S9S08RN16W2VTJ is available at Aetrix Electronics and suitable for automotive engine control, body electronics, smart sensor nodes, and industrial motor controllers requiring stable component supply across extended temperature and long product lifecycles.

Supply support for S9S08RN16W2VTJ 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 markets, with deep heritage in microcontroller innovation from its Freescale acquisition.

The S08 RN series was designed specifically for cost-optimized, high-reliability automotive body and powertrain applications, emphasizing extended temperature operation, functional safety features, and low-power embedded control.

FAQ

What is the maximum bus frequency and operating voltage range for the S9S08RN16W2VTJ?

The S9S08RN16W2VTJ supports a maximum bus frequency of 20 MHz across its full operating voltage range of 2.7 V to 5.5 V. This specification holds over the entire qualified temperature range of -40 °C to +125 °C, as confirmed in Section 4.4 and Table 5 of the Rev 1 (02/2014) data sheet. The internal clock source (ICS) with FLL enables stable operation at this frequency with ±2.0% deviation across the full temperature range.

Does the S9S08RN16W2VTJ support in-circuit debugging, and what interface is used?

Yes, the S9S08RN16W2VTJ supports in-circuit debugging via a single-wire background debug interface (BDM) compliant with Freescale's BDM protocol. It includes breakpoint capability for up to three breakpoints and an on-chip in-circuit emulator (ICE) module with two comparators and nine trigger modes. This allows real-time trace, register inspection, and non-intrusive code execution control without requiring additional debug hardware beyond a BDM pod.

What are the low-power modes supported by the S9S08RN16W2VTJ, and what is the typical current in stop3 mode?

The S9S08RN16W2VTJ supports one low-power stop mode (stop3) and a reduced-power wait mode. In stop3 mode-with only the 1 kHz LPO clock active-the typical supply current is 4.6 µA at 5 V and -40 °C to +125 °C, as specified in Table 4, item 6 of the data sheet. Optional peripherals (ADC, TSI, LVD) add incremental current (≤128 µA total), enabling wake-on-event functionality while maintaining ultra-low quiescent draw.

How many ADC channels does the S9S08RN16W2VTJ have, and what is its resolution and conversion time?

The S9S08RN16W2VTJ includes a 10-channel, 10-bit successive-approximation ADC with a 2.5 µs conversion time, as documented in the "Peripherals" section and Table 2 of the data sheet. It supports operation in stop mode, optional hardware triggering, automatic compare functions, and uses an internal bandgap reference. Channel count is fixed for the 20-pin TSSOP package (S9S08RN16W2VTJ), unlike the 48-pin variant which offers 12 channels.

What package type and pin count does the S9S08RN16W2VTJ use, and what are its thermal characteristics?

The S9S08RN16W2VTJ uses a 20-pin TSSOP package (JEDEC MO-153, 4.4 mm × 6.5 mm, 0.65 mm pitch). Its thermal resistance is θJA = 116 °C/W on a single-layer board and 76 °C/W on a four-layer board, per Table 8 of the data sheet. This package supports automotive underhood operation up to +125 °C ambient, with junction temperature rated to +135 °C.