NXP Semiconductors MC9S08SE4VTG

Overview

MC9S08SE4VTG from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 4 KB flash, 256 bytes RAM, and integrated peripherals including 10-bit ADC, dual TPM timers, SCI serial interface, RTC, and KBI keyboard interrupt module. It operates at up to 20 MHz CPU clock and 10 MHz bus frequency, supporting low-power stop modes and internal/external clock sources. It is used in cost-sensitive embedded control applications such as appliance motor control and industrial sensor nodes.

For engineers reviewing the MC9S08SE4VTG datasheet, MC9S08SE4VTG pinout, MC9S08SE4VTG application, or MC9S08SE4VTG equivalent, this page provides verified technical context, package mapping, functional specifications, real-world use cases, and validated alternative parts for design-in and supply continuity planning.

Technical Context

The MC9S08SE4VTG implements the HCS08 CPU core with HC08 instruction set extension (BGND), supports up to 32 interrupt/reset sources, and features a flexible clock system combining internal ICS (FLL-based, 1–10 MHz bus) and external XOSC (31.25 kHz–16 MHz crystal/resonator). Its memory subsystem includes 4 KB of in-circuit programmable flash with block protection and 256 bytes of RAM.

Peripherals include a full-duplex SCI with LIN master/slave extended break support, 10-channel 10-bit ADC with 2.5 μs conversion time and temperature sensor, two timer/pulse-width modulator modules (TPM1: 2-channel, TPM2: 1-channel), 8-pin keyboard interrupt (KBI), and real-time counter (RTC) with binary/decimal prescaler - all operational in Stop3 mode.

Key Specifications

Pinout & Package

MC9S08SE4VTG is packaged in a 16-pin TSSOP (Case 948F-01), optimized for compact PCB layouts and thermal performance (θJA = 129 °C/W on single-layer board). Pin functions are software-configurable with pullup/slew rate/drive strength control per port.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08SE4VTG, MC9S08SE8VTG offers double flash/RAM in identical packaging for seamless firmware scaling, while S9KEAZ128AMLH provides ARM-based headroom at the cost of layout and software rework - making MC9S08SE4VTG optimal for fixed-cost, low-complexity control tasks.

Availability

MC9S08SE4VTG is available at Aetrix Electronics and suitable for appliance motor control, industrial sensor nodes, automotive body electronics, and smart thermostat interfaces requiring stable component supply and long-term manufacturing continuity.

Supply support for MC9S08SE4VTG 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 microcontrollers dating back to Motorola and Freescale.

The MC9S08SE4VTG belongs to the HCS08 family, designed specifically for cost-optimized, low-power embedded control in resource-constrained environments where reliability, small footprint, and integrated analog peripherals are critical.

FAQ

What is the maximum operating frequency of the MC9S08SE4VTG CPU core?

The MC9S08SE4VTG CPU core runs at up to 20 MHz, with a corresponding maximum bus frequency of 10 MHz. This timing is supported by both the internal ICS (FLL-based) and external crystal/resonator clock sources. The 10 MHz bus frequency determines peripheral timing for TPM, ADC, and SCI modules - all verified in the MC9S08SE4VTG datasheet Rev. 4 under AC characteristics and electrical specs.

Does the MC9S08SE4VTG support in-circuit debugging, and what interface is used?

Yes, the MC9S08SE4VTG supports in-circuit debugging via its single-wire background debug (BDM) interface on the PTA4/BKGD/MS pin. This allows full flash programming, breakpoint setting, and real-time register inspection without requiring a dedicated debug header or JTAG adapter. The MC9S08SE4VTG BDM implementation is fully compatible with standard Freescale/NXP BDM tools and IDEs like S32DS and CodeWarrior.

What are the flash and RAM capacities of the MC9S08SE4VTG?

The MC9S08SE4VTG integrates 4096 bytes (4 KB) of on-chip in-circuit programmable flash memory with block protection and security options, and 256 bytes of on-chip RAM. These values are explicitly confirmed in the MC9S08SE4VTG datasheet Rev. 4, Section 1 (MCU Block Diagram) and Table of Contents coverage note stating "MC9S08SE4 = 4096 BYTES" and "MC9S08SE4 = 256 BYTES".

Can the MC9S08SE4VTG operate from a 3.3 V supply, and what is its voltage range?

Yes, the MC9S08SE4VTG operates across a supply voltage range of 2.7 V to 5.5 V, fully supporting 3.3 V nominal systems. DC characteristics in Table 7 of the datasheet specify parameters at both 3 V and 5 V, including VOH/VOL, VIH/VIL, and supply current. The device maintains full functionality-including ADC, TPM, and SCI-at 3.3 V, with no derating required within the specified temperature range.

Is there an integrated temperature sensor in the MC9S08SE4VTG, and how is it accessed?

Yes, the MC9S08SE4VTG includes an integrated 1.7 mV/°C temperature sensor accessible as ADC channel ADP9 (PTB3) when configured in analog mode. The sensor is factory-trimmed and referenced to the internal bandgap voltage (1.20 V typical), enabling direct Celsius measurement with calibration. This feature is documented in the "Peripherals" section and Figure 1 block diagram of the MC9S08SE4VTG datasheet Rev. 4.