NXP Semiconductors MC9S08SH16CTL

Overview

MC9S08SH16CTL 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 timers, SCI/SPI/IIC interfaces, RTC, and low-power stop3 mode - deployed in industrial sensor nodes and motor control subsystems.

For engineers reviewing the MC9S08SH16CTL datasheet, MC9S08SH16CTL pinout, MC9S08SH16CTL application, or MC9S08SH16CTL equivalent, key selection criteria include FLASH size vs. SH32 variants, TSSOP-28 package compatibility, stop3-mode peripheral retention (ADC/ACMP/RTC), and background debug interface support for embedded firmware development.

Technical Context

The MC9S08SH16CTL implements the HCS08 CPUV3 core with HC08 instruction set plus BGND, supporting up to 32 interrupt/reset sources. Its ICS clock module delivers bus frequencies from 2 MHz to 20 MHz using FLL with internal reference trimming (±0.2% resolution, ±2% deviation over voltage/temperature).

Peripherals include two 2-channel TPM modules with edge- or center-aligned PWM, 10-bit ADC with temperature sensor and internal bandgap reference, and ACMP with output routable to TPM - all operable in stop3 mode. The single-wire background debug interface enables in-circuit emulation with breakpoint and FIFO trace capabilities.

Key Specifications

Pinout & Package

MC9S08SH16CTL is housed in a 28-pin Thin Shrink Small Outline Package (TSSOP) with 0.65 mm lead pitch, JEDEC MO-153 compliant. Pin functions are validated per Freescale MC9S08SH32 Series Data Sheet Rev. 3 (covers MC9S08SH16).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08SH32CTL, the MC9S08SH16CTL offers identical functionality at reduced FLASH capacity - ideal for cost-optimized, fixed-function implementations. Versus S9KEAZ128AMLH, it provides proven HCS08 toolchain continuity and lower power in stop modes, but lacks ARM-native features and scalability.

Availability

MC9S08SH16CTL is available at Aetrix Electronics and suitable for industrial sensor nodes, BLDC motor controllers, smart lighting dimmers, and automotive body electronics requiring stable component supply across extended product lifecycles.

Supply support for MC9S08SH16CTL 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 roots in Freescale's microcontroller heritage.

The HCS08 family - including MC9S08SH16CTL - was designed for cost-sensitive, ultra-low-power embedded control in resource-constrained environments where deterministic real-time response and long-term supply stability are critical.

FAQ

What is the maximum operating frequency of the MC9S08SH16CTL CPU core?

The MC9S08SH16CTL features an HCS08 CPUV3 core rated for up to 40 MHz operation. This corresponds to a 25 ns instruction cycle time, enabling deterministic real-time execution for time-critical control loops. The actual bus frequency is derived from the internal clock source (ICS) and can be configured between 2 MHz and 20 MHz depending on FLL settings and reference clock selection - verified in the MC9S08SH32 Series Data Sheet Rev. 3, Section 11.4.5.

Does the MC9S08SH16CTL support in-circuit debugging, and what interface is used?

Yes, the MC9S08SH16CTL supports full in-circuit debugging via a single-wire background debug (BDM) interface using the BKGD/MS pin. This interface enables breakpoint setting, memory inspection, register access, and trace capture through an on-chip debug module with eight-deep FIFO and nine trigger modes - detailed in Chapter 17 of the MC9S08SH32 Series Data Sheet Rev. 3.

Can the MC9S08SH16CTL operate in low-power modes while retaining analog peripheral functionality?

Yes, the MC9S08SH16CTL supports Stop3 mode, where the CPU and bus clocks halt but the RTC, ADC, and ACMP remain fully operational. This enables wake-on-analog-event functionality with typical current draw below 1 μA - confirmed in Section 3.6.1 and Chapter 9 (ADC) and Chapter 8 (ACMP) of the MC9S08SH32 Series Data Sheet Rev. 3.

What package type does the MC9S08SH16CTL use, and is it RoHS compliant?

The MC9S08SH16CTL is supplied in a 28-pin TSSOP (Thin Shrink Small Outline Package) with 0.65 mm lead pitch, designated by the "TL" suffix. It is RoHS compliant and meets JEDEC MO-153 mechanical specifications - documented in Appendix B (Ordering Information and Mechanical Drawings) of the MC9S08SH32 Series Data Sheet Rev. 3.

How much FLASH and RAM memory does the MC9S08SH16CTL integrate?

The MC9S08SH16CTL integrates 16 KB of on-chip FLASH memory and 1 KB of RAM. FLASH supports read/program/erase across full operating voltage and temperature ranges, with block protection and security features to prevent unauthorized access - specified in Chapter 4 (Memory) of the MC9S08SH32 Series Data Sheet Rev. 3.