NXP Semiconductors MC9S08GT16AMFCE

Overview

MC9S08GT16AMFCE from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 16 KB on-chip FLASH, 2 KB RAM, 40-MHz CPU core, 8-channel 10-bit ADC, dual SCI, SPI, I²C, two TPM timer modules (3+2 channels), and keyboard interrupt support. It operates from 1.8–3.6 V and targets cost-sensitive industrial control and sensor interface applications.

For engineers reviewing the MC9S08GT16AMFCE datasheet, MC9S08GT16AMFCE pinout, MC9S08GT16AMFCE application, or MC9S08GT16AMFCE equivalent, key selection considerations include QFN-32 package compatibility, internal FLL clocking with ±0.5% accuracy across voltage/temperature, low-voltage detection with reset/interrupt, FLASH security and block protection, and single-wire background debug interface for in-circuit development.

Technical Context

The MC9S08GT16AMFCE implements the HCS08 CPU core with HC08 instruction set extension (including BGND), supports up to 32 interrupt/reset sources, and integrates a programmable internal clock generator with frequency-locked loop (FLL) capable of deriving bus clocks from internal reference, external crystal (32 kHz–4 MHz), or resonator. Its memory subsystem includes FLASH with read/program/erase down to 1.8 V and configurable protection.

Peripherals are organized around two independent timer/PWM modules (TPM1: 3-channel, TPM2: 2-channel), dual serial communication interfaces (SCI1/SCI2), SPI, I²C, and an 8-channel 10-bit ATD converter with selectable sample time. Power management includes three stop modes, wait mode, and real-time interrupt capability active in all modes.

Key Specifications

Pinout & Package

MC9S08GT16AMFCE is housed in a 32-pin QFN package (98ASA00473D) with exposed thermal pad, copper-wire interconnect, and 0.5 mm pitch. The package supports reflow soldering and requires controlled thermal relief for the exposed pad per EB806 guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08AC16CFUE and S9KEAZ128AMLH, the MC9S08GT16AMFCE delivers optimal balance of proven 8-bit determinism, ultra-low-power stop modes, and compact 32-pin QFN packaging-ideal for cost-constrained, space-limited embedded controls where CAN or ARM-class throughput are unnecessary.

Availability

MC9S08GT16AMFCE is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, motor interface boards, and legacy equipment retrofit modules requiring stable component supply and long-term lifecycle support.

Supply support for MC9S08GT16AMFCE 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 and later the acquisition of Freescale Semiconductor in 2015. It focuses on secure connectivity solutions for automotive, industrial, and IoT markets.

The MC9S08GT16AMFCE belongs to the HCS08 microcontroller family, designed specifically for cost-sensitive, low-power embedded control applications requiring robust analog integration, deterministic real-time response, and simplified development with single-wire debug.

FAQ

What is the maximum operating frequency of the MC9S08GT16AMFCE?

The MC9S08GT16AMFCE features an HCS08 CPU core with a maximum bus frequency of 40 MHz. This is achieved using the internal frequency-locked loop (FLL) driven by either an internal reference or external crystal (e.g., 4 MHz). The actual core instruction throughput depends on bus frequency and instruction cycle count, with most instructions executing in 1–3 bus cycles. The MC9S08GT16AMFCE maintains timing integrity across its 1.8–3.6 V supply range and industrial temperature grade.

Does the MC9S08GT16AMFCE support in-circuit debugging?

Yes, the MC9S08GT16AMFCE includes a single-wire background debug (BDM) interface compliant with Freescale's BDM specification. It supports real-time in-circuit emulation (ICE) with an 8-deep FIFO, two hardware comparators, and nine trigger modes. Breakpoint functionality includes one active breakpoint during runtime plus two additional breakpoints managed by the on-chip debug module. Debug access requires only the BKGD/MS pin and ground-no dedicated JTAG header is needed. This capability is fully implemented in the MC9S08GT16AMFCE silicon.

What are the power supply requirements for the MC9S08GT16AMFCE?

The MC9S08GT16AMFCE operates from a single 1.8–3.6 V supply on VDD/VSS, with separate analog supply pins (VDDAD/VSSAD) that must be connected to the same potential or filtered independently. It includes integrated low-voltage detection (LVD) with programmable trip points and configurable reset or interrupt response. Internal power-on reset (POR) ensures reliable initialization. The MC9S08GT16AMFCE draws <10 µA in Stop3 mode and supports real-time interrupt wake-up without exiting low-power state-critical for battery-powered applications.

Can the MC9S08GT16AMFCE drive LEDs or relays directly?

Yes, the MC9S08GT16AMFCE provides eight high-current I/O pins rated for 20 mA sink or source per pin-sufficient to drive standard LEDs or small electromechanical relays without external buffer transistors. These pins are distributed across Port C (PTC0–PTC7) and configured via data direction registers (PTCDD) and output data registers (PTCD). Current limiting resistors must still be used for LEDs, and relay coils require flyback diodes. This capability is explicitly specified in the MC9S08GT16AMFCE electrical characteristics table and applies across the full operating voltage and temperature range.

Is the MC9S08GT16AMFCE pin-compatible with other HCS08 devices in QFN-32 package?

No-the MC9S08GT16AMFCE uses a unique pin assignment optimized for its peripheral set (e.g., dual SCI, I²C, TPM, ATD), and is not pin-compatible with other HCS08 QFN-32 variants like MC9S08JM16 or MC9S08LL16. While all share the 32-pin QFN outline (98ASA00473D), signal mapping differs significantly: for example, PTB pins serve as ADC inputs on MC9S08GT16AMFCE but as general-purpose I/O on MC9S08JM16. Pin compatibility must be verified per device-specific mechanical drawings and signal tables-not assumed from package type alone.