NXP Semiconductors MC9S08SH16VTL

Overview

MC9S08SH16VTL from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller with 16 KB on-chip FLASH, 1 KB RAM, and a 40-MHz CPU core. It integrates ADC (10-bit, 16-channel), dual TPM PWM modules, SCI/SPI/IIC interfaces, RTC, and ACMP - all operating in Stop3 mode. Used in industrial sensor nodes and low-power motor control systems.

For engineers reviewing the MC9S08SH16VTL datasheet, MC9S08SH16VTL pinout, MC9S08SH16VTL application, or MC9S08SH16VTL equivalent, key selection criteria include FLASH size, stop-mode peripheral retention, I/O count (23 GPIO + 1 output-only), internal clock source accuracy (±2% over voltage/temperature), and single-wire BDM debug support.

Technical Context

The MC9S08SH16VTL implements the S08CPUV3 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) with precision-trimmed internal reference (0.2% resolution, ±2% deviation over voltage/temperature).

Peripherals include two 2-channel TPM modules with edge- or center-aligned PWM, a 10-bit ADC with temperature sensor and bandgap reference, and analog comparators routable to TPM for event-triggered timing - all functional in Stop3 mode with 1-kHz RTC wake-up capability.

Key Specifications

Pinout & Package

MC9S08SH16VTL is housed in a 28-pin TSSOP package (body width 4.4 mm, lead pitch 0.65 mm), RoHS-compliant and rated for industrial temperature range (–40°C to +105°C). Pin assignments match the MC9S08SH32 series footprint, enabling shared PCB layout for memory-scalable variants.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08SH16VTL, MC9S08SH32VTL offers double FLASH/RAM in identical packaging for seamless scalability, while S9KEAZ128AMLH provides ARM-based performance and peripheral upgrades at the cost of software migration effort and higher BOM cost.

Availability

MC9S08SH16VTL is available at Aetrix Electronics and suitable for industrial sensor nodes, low-power motor controllers, smart meter interface modules, and embedded PLC I/O expanders requiring stable component supply and long-term lifecycle support.

Supply support for MC9S08SH16VTL 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 headquartered in Eindhoven, Netherlands, with design centers worldwide.

The MC9S08SH16VTL belongs to the HCS08 microcontroller family, designed specifically for cost-sensitive, ultra-low-power embedded control applications in industrial automation, building controls, and appliance systems where deterministic real-time response and minimal external components are critical.

FAQ

What is the maximum bus frequency supported by the MC9S08SH16VTL?

The MC9S08SH16VTL supports a maximum bus frequency of 20 MHz when using the Internal Clock Source (ICS) with Frequency-Locked Loop (FLL). This is achieved with appropriate configuration of the ICS divider and FLL reference settings. The CPU core itself operates at up to 40 MHz, with bus frequency being half the core clock in standard configurations. External crystal oscillators up to 16 MHz are also supported via the XOSC module.

Does the MC9S08SH16VTL support in-circuit debugging, and what interface is used?

Yes, the MC9S08SH16VTL supports in-circuit debugging via a single-wire background debug (BDM) interface on the BKGD/MS pin. It includes one hardware breakpoint, an on-chip debug module with two comparators and nine trigger modes, and an eight-deep FIFO for storing flow-change addresses. The MC9S08SH16VTL does not require a JTAG connector - only one signal line plus ground is needed for full programming and real-time debugging.

Can the MC9S08SH16VTL ADC operate while the MCU is in Stop3 mode?

Yes, the MC9S08SH16VTL ADC remains fully operational in Stop3 mode, including channel scanning, conversion, and automatic compare functionality. This allows continuous sensor monitoring with ultra-low power consumption (~1.2 μA typical). The ADC can be triggered by internal timers or external events, and results are accessible upon wake-up without reinitialization - a key feature for battery-powered applications.

What package type and pin count does the MC9S08SH16VTL use?

The MC9S08SH16VTL is supplied in a 28-pin Thin Shrink Small Outline Package (TSSOP) with 0.65 mm lead pitch and 4.4 mm body width. It is RoHS-compliant and rated for industrial temperature range (–40°C to +105°C). This package matches the pinout of other MC9S08SHx series devices, including MC9S08SH32VTL, enabling hardware reuse across memory variants.

How does the MC9S08SH16VTL handle low-voltage conditions?

The MC9S08SH16VTL includes a configurable Low-Voltage Detect (LVD) system that can generate either a reset or interrupt when supply voltage drops below a selected threshold (e.g., 2.5 V or 2.7 V). LVD operates independently of the main clock and remains active in all power modes, including Stop3. This ensures reliable brown-out protection and graceful shutdown or warning before critical voltage levels are reached.