NXP Semiconductors MC9S08SH16VWL

Overview

MC9S08SH16VWL from NXP Semiconductors (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 timers, SCI, SPI, I²C, ACMP, RTC, and low-power stop3 mode. Used in industrial sensor nodes and motor control subsystems requiring deterministic real-time response and code security.

For engineers reviewing the MC9S08SH16VWL datasheet, MC9S08SH16VWL pinout, MC9S08SH16VWL application, or MC9S08SH16VWL equivalent, key selection criteria include FLASH size vs. SH32 variants, TSSOP-28 package compatibility, ICS clock accuracy (±2% over voltage/temperature), stop3-mode peripheral retention (ADC, ACMP, RTC), and single-wire BDM debug support.

Technical Context

The MC9S08SH16VWL 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) trimmed for ±0.2% resolution and ±2% deviation across voltage and temperature.

Peripherals operate under precise clock domain control: ADC conversion time is 2.5 μs at max speed; SCI supports LIN master break generation and slave break detection; TPM modules deliver edge- or center-aligned PWM with input capture and output compare on all four channels.

Key Specifications

Pinout & Package

MC9S08SH16VWL is housed in a 28-pin TSSOP (Thin Shrink Small Outline Package) with 0.65 mm pitch, JEDEC MO-153 compliant, body dimensions 9.7 × 4.4 mm. Pinout validated per Freescale MC9S08SH32 Series Data Sheet Rev. 3 (2014), Section 2.1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08SH32VWL, the MC9S08SH16VWL offers identical peripheral set and low-power behavior at lower FLASH capacity-ideal for cost-sensitive, memory-constrained applications. Versus S9KEAZ128AMLH, it delivers proven 8-bit determinism, smaller footprint, and legacy toolchain continuity, but lacks 32-bit throughput and modern interface options.

Availability

MC9S08SH16VWL is available at Aetrix Electronics and suitable for industrial motor control subsystems, smart sensor nodes, automotive body electronics, and home appliance power supervisors requiring stable component supply and long-term lifecycle support.

Supply support for MC9S08SH16VWL 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 Freescale Semiconductor and NXP's standard products division, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The MC9S08SH16VWL belongs to the HCS08 microcontroller family designed for cost-sensitive, low-power embedded control applications demanding high reliability, code security, and mixed-signal integration in harsh environments.

FAQ

What is the maximum bus frequency supported by the MC9S08SH16VWL?

The MC9S08SH16VWL supports a maximum bus frequency of 20 MHz via its Internal Clock Source (ICS) module. This is achieved using the frequency-locked loop (FLL) with internal or external reference; the 40-MHz CPU core derives its clock from this bus clock through a divide-by-2 prescaler. Operation at 20 MHz requires proper decoupling and crystal stability per Section 2.2.2 of the datasheet. The MC9S08SH16VWL must not be operated beyond this limit to ensure timing compliance.

Does the MC9S08SH16VWL support in-circuit debugging?

Yes, the MC9S08SH16VWL supports in-circuit debugging via a single-wire background debug (BDM) interface. It includes an on-chip debug module with two hardware breakpoints beyond the primary BDM breakpoint, an eight-deep FIFO for flow tracing, and tag/force breakpoint capability. Debugging requires compatible tools such as the P&E Micro USB-ML-12 or Cyclone Pro; no external JTAG adapter is needed. The MC9S08SH16VWL debug interface is fully functional across all operating modes including wait and stop3.

Can the MC9S08SH16VWL operate in ultra-low-power modes with ADC active?

Yes, the MC9S08SH16VWL supports ADC operation in stop3 mode - its deepest low-power state. In stop3, the ADC remains powered and functional, enabling wake-up on conversion completion or automatic compare match. This allows battery-operated systems to sample sensors periodically while consuming less than 2 μA total current. The MC9S08SH16VWL's stop3 mode retains RAM, I/O states, and peripheral configurations, eliminating boot overhead on wake-up.

What package type is used for the MC9S08SH16VWL?

The MC9S08SH16VWL is packaged in a 28-pin Thin Shrink Small Outline Package (TSSOP) with 0.65 mm lead pitch, compliant with JEDEC MO-153. This surface-mount package measures 9.7 mm × 4.4 mm and is RoHS-compliant. It shares pinout compatibility with other members of the MC9S08SHxx series in TSSOP-28, including MC9S08SH32VWL, enabling layout reuse across memory variants. The MC9S08SH16VWL does not offer SOIC or QFP variants in this specific ordering code.

Is the internal temperature sensor in the MC9S08SH16VWL factory-calibrated?

Yes, the internal temperature sensor in the MC9S08SH16VWL is factory-calibrated and referenced to the internal bandgap voltage. Calibration data is stored in FLASH at fixed addresses and accessible via software; typical accuracy is ±3°C over –40°C to +105°C. The sensor operates in run, wait, and stop3 modes, and readings require ADC conversion on dedicated channel AD7. This eliminates external sensor cost in thermal monitoring applications - a key design value of the MC9S08SH16VWL.