NXP Semiconductors S9S08SG4E2MTJ

Overview

S9S08SG4E2MTJ from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 4 KB flash, 256 B RAM, and integrated ADC, ACMP, SCI, SPI, I²C, TPM, and RTC peripherals. It operates at up to 40 MHz CPU frequency, supports stop3 low-power mode, and features internal clock source with ±1.5% FLL accuracy over –40°C to 125°C. Used in automotive body electronics, industrial sensor nodes, and smart HVAC controls.

For engineers reviewing the S9S08SG4E2MTJ datasheet, S9S08SG4E2MTJ pinout, S9S08SG4E2MTJ application, or S9S08SG4E2MTJ equivalent, key selection criteria include its 16-pin TSSOP package, 2.7–5.5 V supply range, on-chip temperature sensor, single-wire background debug interface, and support for LIN-compliant SCI wake-up and break detection.

Technical Context

The S9S08SG4E2MTJ implements the HCS08 CPU core with HC08 instruction set plus BGND, supporting up to 32 interrupt/reset sources. Its internal clock source (ICS) uses a frequency-locked loop (FLL) trimmed for ±1.5% deviation across –40°C to 125°C, enabling stable 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 bandgap reference option and TPM routing capability, and dual TPM modules offering input capture, output compare, and edge- or center-aligned PWM - all functional in stop3 mode.

Key Specifications

Pinout & Package

Package: 16-pin TSSOP (JEDEC MO-153, 4.4 mm × 5.0 mm), RoHS-compliant, rated for operation up to 125°C ambient (not high-temp 150°C variant).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S9S08SG4E2MTJ, MC9S08SG8CTJ offers double flash/RAM in identical packaging for seamless firmware scaling, while S9S08SG16E2MTJ provides expanded analog and communication resources - both retain full peripheral compatibility but require validation of flash layout and interrupt vector mapping.

Availability

S9S08SG4E2MTJ is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and smart appliance control requiring stable component supply and long-term lifecycle support.

Supply support for S9S08SG4E2MTJ 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 applications.

The S9S08SG4E2MTJ belongs to the HCS08 SG-series microcontrollers, designed specifically for cost-sensitive, low-power embedded control in harsh environments - emphasizing robustness, integrated analog, and minimal external component count.

FAQ

What is the maximum operating temperature rating for the S9S08SG4E2MTJ?

The S9S08SG4E2MTJ is rated for operation from –40°C to 125°C ambient temperature. It uses the standard temperature grade (M suffix) and is not qualified for the high-temperature 150°C variant offered in the SG8 family. This rating is validated per Freescale's Rev. 8 datasheet, Table A-3, and applies to the 16-TSSOP package configuration of the S9S08SG4E2MTJ.

Does the S9S08SG4E2MTJ support LIN 2.x physical layer signaling natively?

Yes, the S9S08SG4E2MTJ's SCI module supports LIN 2.x-compliant extended break generation and detection without external transceiver hardware. The SCI1TX and SCI1RX pins (PTB0/PTB1) implement the required timing tolerances and wakeup detection per LIN specification, confirmed in Section 14 of the MC9S08SG8 datasheet which covers the S9S08SG4E2MTJ device family.

Can the S9S08SG4E2MTJ operate without an external crystal or resonator?

Yes, the S9S08SG4E2MTJ can operate entirely from its internal clock source (ICS) with frequency-locked loop (FLL). Factory-trimmed internal reference enables ±1.5% accuracy from –40°C to 125°C, supporting bus frequencies from 2 MHz to 20 MHz - eliminating need for external timing components in most non-precision timing applications.

What debug interface does the S9S08SG4E2MTJ provide, and what tools are compatible?

The S9S08SG4E2MTJ features a single-wire background debug (BDM) interface compliant with Freescale's BDM specification. It supports in-circuit debugging using P&E Micro's Cyclone Pro, SEGGER J-Link (with BDM firmware), and NXP's S08 Tower System. The interface requires only the BKGD/MS pin and ground - no dedicated debug header or SWD/JTAG adapter is needed.

Is the S9S08SG4E2MTJ pin-compatible with other members of the SG-series?

Yes, the S9S08SG4E2MTJ in 16-TSSOP is pin-compatible with MC9S08SG8CTJ and S9S08SG16E2MTJ in the same package. All share identical pin assignments, electrical characteristics, and peripheral mappings per the MC9S08SG8 Rev. 8 datasheet, enabling drop-in memory upgrades without layout changes - provided flash programming and vector table offsets are updated in firmware.