NXP Semiconductors S9S08SG4E2VTGR

Overview

S9S08SG4E2VTGR from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 4 KB flash, 256 B RAM, and integrated peripherals including 10-bit ADC, analog comparator, SCI, SPI, I²C, TPM PWM timers, and RTC. It operates at up to 40 MHz CPU frequency with support for stop3 low-power mode and runs in automotive-grade temperature range (–40 °C to 125 °C). Used in body electronics, sensor interface modules, and smart actuators requiring deterministic real-time control.

For engineers reviewing the S9S08SG4E2VTGR datasheet, S9S08SG4E2VTGR pinout, S9S08SG4E2VTGR application, or S9S08SG4E2VTGR equivalent, key selection criteria include flash size, stop-mode current consumption, on-chip clock source accuracy (±1.5% over –40 to 125 °C), peripheral integration (e.g., LIN-capable SCI), and TSSOP-16 package compatibility with legacy S08 designs.

Technical Context

The S9S08SG4E2VTGR implements the HCS08 CPU core with HC08 instruction set extension (BGND), supporting up to 32 interrupt/reset sources and single-wire background debug. Its internal clock source (ICS) uses a frequency-locked loop (FLL) with precision-trimmed internal reference, enabling bus frequencies from 2 MHz to 20 MHz without external crystal.

Peripherals are designed for embedded control: ADC supports 12 channels with temperature sensor and internal bandgap reference; ACMP output can route to TPM for event-triggered PWM; SCI includes LIN master break generation and slave break detection; RTC runs on free-running 1 kHz on-chip oscillator in all modes including stop3.

Key Specifications

Pinout & Package

16-pin Thin Shrink Small Outline Package (TSSOP), thermally enhanced, lead-free, RoHS-compliant. Pin pitch: 0.65 mm. Body dimensions: 4.4 mm × 5.0 mm × 1.2 mm. Moisture sensitivity level (MSL): 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08SG8CTJ, S9S08SG4E2VTGR trades flash capacity for lower cost and smaller code footprint; versus S9KEAZ128AMLH, it offers proven HCS08 toolchain continuity and lower power in stop3 mode but lacks ARM ecosystem features.

Availability

S9S08SG4E2VTGR is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and smart appliance control systems requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.

Supply support for S9S08SG4E2VTGR 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 S9S08SG4E2VTGR belongs to the legacy HCS08 microcontroller family, designed specifically for cost-sensitive, low-power embedded control applications where deterministic real-time response and minimal external components are critical.

FAQ

What is the maximum operating temperature rating for the S9S08SG4E2VTGR?

The S9S08SG4E2VTGR is rated for operation from –40 °C to +125 °C ambient temperature. It does not support the high-temperature (150 °C) variant offered in the SG8 family. This rating is validated per Freescale's MC9S08SG4 datasheet Rev. 8, Section A.1, and applies to the 16-TSSOP package used in S9S08SG4E2VTGR.

Does the S9S08SG4E2VTGR support LIN communication natively?

Yes, the S9S08SG4E2VTGR supports LIN 2.0/2.1 communication through its SCI module, which includes hardware-assisted LIN master break generation and LIN slave extended break detection. These features are implemented in silicon and require no bit-banging - confirmed in Section 14 of the MC9S08SG8/SG4 datasheet Rev. 8.

Can the S9S08SG4E2VTGR operate without an external crystal?

Yes, the S9S08SG4E2VTGR can operate entirely from its internal clock source (ICS) with FLL enabled. The trimmed internal reference provides ±1.5% bus frequency accuracy over –40 to 125 °C, supporting bus frequencies from 2 MHz to 20 MHz - eliminating need for external crystal in cost-sensitive or space-constrained designs.

What debug interface does the S9S08SG4E2VTGR use, and what hardware is required?

The S9S08SG4E2VTGR uses a single-wire background debug (BDM) interface via the BKGD/MS pin. Only one signal line plus ground is required - no dedicated debug header or SWD/JTAG adapter needed. Compatible debug tools include the NXP DEMO9S08SG8 development board and standalone BDM interfaces like the OSBDM v4.

Is the S9S08SG4E2VTGR pin-compatible with the MC9S08SG8 series?

Yes, the S9S08SG4E2VTGR in 16-TSSOP package shares identical pin assignment, electrical characteristics, and peripheral mapping with the MC9S08SG8CTJ. Both devices use the same MC9S08SG8/SG4 datasheet Rev. 8 and are drop-in replacements in 16-pin layouts - verified in Chapter 2 "Pins and Connections" and Appendix B mechanical drawings.