NXP Semiconductors MC9S08SE4CTG

Overview

MC9S08SE4CTG from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 4 KB flash, 256 bytes RAM, 10-bit ADC, SCI interface, dual TPM timers, RTC, and KBI module - designed for cost-sensitive embedded control in industrial sensors and appliance subsystems.

For engineers reviewing the MC9S08SE4CTG datasheet, MC9S08SE4CTG pinout, MC9S08SE4CTG application, or MC9S08SE4CTG equivalent, this page delivers verified technical context, package mapping, real-world use scenarios, and validated alternative options - all grounded in the official MC9S08SE8 Series Data Sheet Rev. 4 (2015), which explicitly covers MC9S08SE4.

Technical Context

The MC9S08SE4CTG implements the HCS08 CPU core running at up to 20 MHz with a 10 MHz bus frequency, supporting HC08 instruction set plus BGND. It integrates an internal clock source (ICS) with FLL, enabling bus frequencies from 1–10 MHz using either internal reference or external crystal (31.25 kHz–16 MHz).

System-level protection includes COP reset (with independent 1 kHz clock option), low-voltage detection (LVD thresholds at 2.48–4.2 V), illegal opcode/address detection, and single-wire background debug. Peripherals include SCI with LIN support, 10-channel 10-bit ADC (2.5 μs conversion, temperature sensor, bandgap reference), two TPM modules (TPM1: 2-channel, TPM2: 1-channel), 8-pin KBI, and binary/decimal RTC.

Key Specifications

Pinout & Package

MC9S08SE4CTG is packaged in a 16-pin TSSOP (Case 948F-01), with pin functions mapped per the MC9S08SE8 Series Pin Assignments (Table 1, Figure 3). All pins are shared with the MC9S08SE8 family; no unique pinout deviations are documented for the SE4 variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08SE8CTG, the MC9S08SE4CTG trades memory capacity for lower unit cost and smaller footprint - ideal for fixed-function, high-volume applications. S9KEAZ128AMLH offers architectural modernization but demands layout changes and toolchain migration.

Availability

MC9S08SE4CTG is available at Aetrix Electronics and suitable for industrial sensor nodes, home appliance control units, smart meter subsystems, and automotive body electronics requiring stable component supply and long-term manufacturability.

Supply support for MC9S08SE4CTG 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.

The MC9S08SE4CTG belongs to the HCS08-based S08SE family, engineered for cost-optimized, low-power embedded control in appliances, industrial equipment, and automotive subsystems where deterministic real-time response and minimal BOM cost are critical.

FAQ

What is the maximum operating frequency of the MC9S08SE4CTG CPU core?

The MC9S08SE4CTG CPU core operates at up to 20 MHz, delivering 10 million instructions per second (MIPS) at a 10 MHz bus frequency. This performance level supports real-time control loops in motor drives, sensor fusion, and communication protocols without requiring external acceleration. The MC9S08SE4CTG achieves this using the HCS08 architecture with optimized instruction pipelining and BGND support for debug efficiency.

Does the MC9S08SE4CTG support LIN communication natively?

Yes, the MC9S08SE4CTG's SCI module includes hardware LIN master extended break generation and LIN slave extended break detection, enabling direct implementation of LIN 2.0/2.1 protocols without external transceivers or software bit-banging. This capability is confirmed in the MC9S08SE8 Series Data Sheet Rev. 4, Section "Peripherals", and applies identically to the MC9S08SE4CTG as part of the same family coverage.

What are the power consumption characteristics of the MC9S08SE4CTG in Stop3 mode?

In Stop3 mode, the MC9S08SE4CTG draws 1.61 μA (typical) at 5 V and –40 to 85 °C, rising to 76.1 μA (max) at 125 °C. With RTC enabled, an adder of 300–500 nA applies; with LVD enabled, an adder of 122–180 μA applies. These values are measured per Table 8 of the official datasheet and reflect true ultra-low-power operation for battery-backed applications.

Can the MC9S08SE4CTG operate from an internal clock source only, without external crystals?

Yes, the MC9S08SE4CTG integrates an Internal Clock Source (ICS) with Frequency-Locked Loop (FLL) that generates bus frequencies from 1–10 MHz using only its factory-trimmed internal reference (39.0625 kHz). No external crystal is required, reducing system cost and board space - though accuracy (±2% over voltage/temperature) is lower than crystal-based timing.

What is the ADC resolution and conversion time of the MC9S08SE4CTG?

The MC9S08SE4CTG features a 10-bit successive-approximation ADC with 10 input channels, 2.5 μs conversion time at maximum clock rate, automatic compare function, and integrated temperature sensor (1.7 mV/°C). Its internal bandgap reference channel and ability to run in Stop3 mode make it suitable for precision analog monitoring in power-constrained environments.