NXP Semiconductors MC9S08SH16MTJR

Overview

MC9S08SH16MTJR 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 (16-channel, 10-bit), dual TPM PWM modules, SCI, SPI, I²C, RTC, and analog comparators - designed for cost-sensitive industrial control and sensor interface applications in 16-TSSOP package.

For engineers reviewing the MC9S08SH16MTJR datasheet, MC9S08SH16MTJR pinout, MC9S08SH16MTJR application, or MC9S08SH16MTJR equivalent, key selection criteria include FLASH size, stop-mode power consumption, peripheral mix (especially RTC + ACMP + ADC in STOP3), and TSSOP-16 footprint compatibility with space-constrained embedded designs.

Technical Context

The MC9S08SH16MTJR implements the HCS08 CPU core with HC08 instruction set plus BGND, supporting up to 32 interrupt/reset sources. Its internal clock source (ICS) delivers bus frequencies from 2 MHz to 20 MHz using FLL with precision-trimmed internal reference (±0.2% resolution, ±2% deviation over voltage/temperature).

Peripherals operate across all power modes: ADC and ACMP remain functional in STOP3 mode; RTC runs continuously on 1-kHz internal oscillator; SCI supports LIN master break generation and wake-up on active edge - enabling low-power sensor polling and communication in battery-operated systems.

Key Specifications

Pinout & Package

MC9S08SH16MTJR is housed in a 16-pin Thin Shrink Small Outline Package (TSSOP) with 0.65 mm lead pitch, JEDEC MO-153 compliant. Pinout validated per Freescale MC9S08SH32 Series Data Sheet Rev. 3 (2014), Section 2.1 - applicable to MC9S08SH16 family members including MTJR variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08SH8MTJR, the MC9S08SH16MTJR provides double FLASH/RAM for complex control algorithms and calibration tables; versus S9KEAZ128AMLH, it offers lower power in STOP3, smaller footprint, and mature toolchain support - making it optimal for cost- and space-constrained legacy-compatible upgrades.

Availability

MC9S08SH16MTJR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, motor drive interface boards, and legacy equipment retrofit modules requiring stable component supply and long-lifecycle support.

Supply support for MC9S08SH16MTJR 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 Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The MC9S08SH16MTJR belongs to the HCS08 microcontroller family, engineered for cost-effective, low-power embedded control in space-constrained industrial and consumer applications - emphasizing peripheral integration, stop-mode efficiency, and debug simplicity.

FAQ

What is the maximum operating frequency of the MC9S08SH16MTJR CPU core?

The MC9S08SH16MTJR features an HCS08 CPU core rated for up to 40 MHz operation. This maximum frequency is achievable when powered within the specified 2.7–5.5 V supply range and operating across the full industrial temperature range (−40°C to +105°C). The actual bus frequency depends on the selected clock source and ICS configuration - for example, the internal clock source (ICS) supports bus frequencies from 2 MHz to 20 MHz using its FLL, while external crystal oscillators can enable full 40-MHz operation. The MC9S08SH16MTJR datasheet confirms this rating in Section 1.2 and electrical characteristics tables.

Does the MC9S08SH16MTJR support debugging via a standard interface?

Yes, the MC9S08SH16MTJR supports in-circuit debugging through a single-wire background debug (BDM) interface using the BKGD/MS pin. This interface enables full read/write memory access, breakpoint setting (one hardware breakpoint plus two more via on-chip debug module), and real-time register inspection without halting peripheral operation. The on-chip debug module also includes an 8-deep FIFO for change-of-flow tracing and supports both tag and force breakpoints. No external JTAG adapter is required - the MC9S08SH16MTJR is compatible with standard Freescale/NXP BDM debug tools such as the OSBDM v4 and S32DS IDE.

Can the MC9S08SH16MTJR operate in ultra-low-power modes while retaining analog functionality?

Yes, the MC9S08SH16MTJR supports STOP3 mode - a very low-power state where the CPU and bus clocks are halted but the RTC, ADC, and ACMP remain fully operational. In STOP3, typical current consumption is less than 1 μA at 3.3 V and 25°C, with full retention of RAM and peripheral registers. The ADC can perform conversions triggered by internal or external events, and the ACMP can generate interrupts on signal threshold crossings - enabling wake-up without external components. This capability is documented in Sections 3.6.1 and 9.4.7 of the MC9S08SH32 Series Data Sheet, which applies directly to the MC9S08SH16MTJR.

What peripheral communication interfaces are integrated into the MC9S08SH16MTJR?

The MC9S08SH16MTJR integrates four serial communication peripherals: SCI (UART with LIN master/slave support), SPI (full-duplex or single-wire, master/slave capable), I²C (up to 100 kbps, multi-master, 7-bit/10-bit addressing), and a real-time counter (RTC) with external clock input option. All are accessible via dedicated pins and supported by interrupt-driven operation. The SCI module includes LIN-specific features like extended break generation/detection and wake-up on active edge; the I²C module supports broadcast mode and programmable slave address. These interfaces are detailed in Chapters 14–16 and Appendix A of the MC9S08SH32 Series Data Sheet, confirmed applicable to MC9S08SH16MTJR.

Is the MC9S08SH16MTJR pin-compatible with other members of the SH-series microcontrollers?

The MC9S08SH16MTJR in 16-TSSOP package shares identical pinout with MC9S08SH8MTJR and MC9S08SH4MTJR - all three variants use the same 16-pin mapping for power, reset, debug, oscillator, and GPIO functions. However, it is not pin-compatible with 20-TSSOP, 28-SOIC, or 28-TSSOP SH-series variants due to differing pin counts and assignments. Peripheral availability (e.g., number of TPM channels or ADC inputs) varies between FLASH sizes, but pin-level signal routing remains consistent across the 16-TSSOP family. This compatibility is verified in Section 2.1 (Device Pin Assignment) of the MC9S08SH32 Series Data Sheet.