NXP Semiconductors MC9S08SE8VTG

Overview

MC9S08SE8VTG from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 8 KB flash, 512 bytes RAM, and integrated peripherals including 10-bit ADC, dual TPM timers, SCI with LIN support, RTC, and KBI. It operates at up to 20 MHz CPU clock and 10 MHz bus frequency, and targets low-power embedded control in industrial sensors and automotive body electronics.

For engineers reviewing the MC9S08SE8VTG datasheet, MC9S08SE8VTG pinout, MC9S08SE8VTG application, or MC9S08SE8VTG equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use scenarios, and validated alternative options - all grounded in Rev. 4 (April 2015) official documentation and confirmed TSSOP-16 mechanical data.

Technical Context

The MC9S08SE8VTG implements the HCS08 CPU core with HC08 instruction set extension (BGND), supporting up to 32 interrupt/reset sources and single-wire background debug. Its clock system combines a precision internal clock source (ICS) with FLL-based frequency locking and external crystal/resonator support (31.25 kHz–16 MHz).

Peripherals include a 10-channel 10-bit ADC with 2.5 μs conversion time and temperature sensor (1.7 mV/°C), two timer/pulse-width modulator modules (TPM1: 2-channel, TPM2: 1-channel), SCI with LIN master/slave break generation, and real-time counter with binary/decimal prescaler - all functional in Stop3 mode.

Key Specifications

Pinout & Package

MC9S08SE8VTG is packaged in 16-pin TSSOP (Case 948F-01), with pin functions mapped per Table 1 and Figure 3 of Rev. 4 datasheet. All pins are shared I/O unless designated as power, reset, or debug signals. Internal pullups on RESET, IRQ, and BKGD/MS reduce external component count.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08AC128CFGE and S9KEAZ128AMLH, the MC9S08SE8VTG offers optimal balance of low-power operation, integrated analog features (temperature sensor, bandgap), and compact 16-pin TSSOP packaging - making it uniquely suited for cost-sensitive, space-constrained embedded nodes where 8-bit determinism and sub-μA sleep are critical.

Availability

MC9S08SE8VTG is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body electronics, smart appliance control panels, and medical handheld diagnostics requiring stable component supply and long-term lifecycle support.

Supply support for MC9S08SE8VTG 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, IoT, and mobile applications.

The MC9S08SE8VTG belongs to the legacy HCS08 microcontroller family, designed specifically for cost-effective, ultra-low-power embedded control in resource-constrained environments - emphasizing integrated analog, robust system protection, and minimal external component count.

FAQ

What is the maximum operating frequency of the MC9S08SE8VTG CPU and bus?

The MC9S08SE8VTG CPU supports a maximum clock frequency of 20 MHz, while its internal bus operates at up to 10 MHz. This is achieved via the internal clock source (ICS) with frequency-locked-loop (FLL) or external crystal/resonator (XOSC) configurations. The bus frequency is derived directly from the CPU clock and cannot exceed half the CPU frequency in standard operation.

Does the MC9S08SE8VTG support LIN communication natively?

Yes, the MC9S08SE8VTG's SCI module provides native LIN 2.x support through hardware-assisted break generation (LIN master) and break detection (LIN slave), eliminating software overhead for frame synchronization. This capability is confirmed in Section "Peripherals" of the Rev. 4 datasheet and applies directly to the MC9S08SE8VTG variant in all supported packages.

What power modes does the MC9S08SE8VTG support, and what is the lowest achievable current draw?

The MC9S08SE8VTG supports Wait, Stop2, and Stop3 modes. In Stop3 mode with RTC enabled and no oscillator, typical current draw is 1.61 μA at –40°C to +85°C (5 V supply). With LVD and oscillator enabled, current rises to 76.1 μA max at +125°C - values confirmed in Table 8 of the Rev. 4 datasheet for the 16-pin TSSOP configuration.

Can the MC9S08SE8VTG operate without an external crystal?

Yes, the MC9S08SE8VTG can operate entirely from its internal clock source (ICS), which includes a factory-trimmed 39.0625 kHz reference and FLL for bus frequencies up to 10 MHz. External crystal is optional and only required when higher accuracy or specific frequency stability is needed beyond the ICS's ±2% full-range deviation.

What is the function of the PTA4 pin on the MC9S08SE8VTG?

PTA4 serves as the bidirectional BKGD (background debug) pin for single-wire in-circuit debugging and programming. When configured as BKGD, it operates as an open-drain signal with internal pullup. It also doubles as MS (Master Select) for SPI peripheral use - a dual function explicitly defined for the MC9S08SE8VTG in the Pin Assignments chapter of Rev. 4.