NXP Semiconductors MC9S08GT16CFBER

Overview

MC9S08GT16CFBER from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller with 16 KB Flash, 1 KB RAM, and integrated peripherals including SCI, SPI, I²C, TPM, ATD, and KBI. It operates at up to 40 MHz bus frequency, supports multiple low-power stop/wait modes, and targets cost-sensitive embedded control in automotive body electronics and industrial sensors.

For engineers reviewing the MC9S08GT16CFBER datasheet, MC9S08GT16CFBER pinout, MC9S08GT16CFBER application, or MC9S08GT16CFBER equivalent, key selection criteria include Flash size, 48-pin QFN package compatibility, internal clock generator (ICG) configuration options, and background debug mode (BDM) support for in-circuit development.

Technical Context

The MC9S08GT16CFBER implements the HCS08 CPU core with 5-cycle MOV instruction timing and a 16-bit index register (H:X). Its Internal Clock Generator (ICG) supports four operational modes-FEI, FBE, FEE, and SCM-with configurable FLL loop parameters and crystal/external clock input options.

Peripheral integration includes a 10-bit ATD converter with 8 channels, two 16-bit TPM modules (TPM1 and TPM2) supporting input capture, output compare, and edge-aligned PWM, plus dual serial interfaces: one SCI and one SPI, alongside an I²C module compliant with Philips I²C-bus specification v2.1.

Key Specifications

Pinout & Package

MC9S08GT16CFBER is housed in a 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch) with wettable flank leads per JEDEC MO-220. The package supports reflow soldering and provides thermal pad grounding for EMI reduction and thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08GT16CFBER, MC9S08AC128CPUE offers greater memory and CAN but requires PCB redesign due to different pin count and package; S9KEAZ128AMLH delivers modern ARM capabilities but increases BOM cost and toolchain complexity - MC9S08GT16CFBER remains optimal for legacy-compatible, cost-constrained 8-bit control.

Availability

MC9S08GT16CFBER is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart appliance control boards, and medical diagnostic handhelds requiring stable component supply across long production lifecycles.

Supply support for MC9S08GT16CFBER 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The MC9S08GT series was designed as a cost-optimized, low-power 8-bit MCU family targeting entry-level automotive and industrial control applications where Flash density, peripheral integration, and debug flexibility outweigh raw processing power.

FAQ

What is the maximum bus frequency supported by the MC9S08GT16CFBER?

The MC9S08GT16CFBER supports a maximum bus frequency of 40 MHz. This value is achieved using the FLL Engaged External (FEE) mode with a 4 MHz crystal input and appropriate ICG register settings. The actual achievable frequency depends on VDD, temperature, and ICG configuration - refer to Table A-9 in the Rev. 2.3 datasheet for electrical limits across operating conditions. MC9S08GT16CFBER maintains timing compliance within specification up to this rated frequency.

Does the MC9S08GT16CFBER include an integrated analog-to-digital converter?

Yes, the MC9S08GT16CFBER integrates a 10-bit Analog-to-Digital Converter (ATD) module with eight input channels (AN0–AN7), mapped to Port B pins. It supports single-ended and differential acquisition, software or hardware triggering, and programmable sample time. Conversion time is 7 µs at maximum bus frequency, and the module includes dedicated result registers and status flags. MC9S08GT16CFBER's ATD meets requirements for basic sensor interfacing in automotive and industrial applications.

What debug interface does the MC9S08GT16CFBER support?

The MC9S08GT16CFBER supports Background Debug Mode (BDM) via the PTG0 pin, enabling single-wire in-circuit debugging and programming. This interface allows full memory access, register inspection, breakpoint setting, and real-time execution control without halting the target system. BDM is implemented in silicon and requires no additional pins or external hardware beyond a compatible debugger (e.g., P&E Multilink). MC9S08GT16CFBER's BDM implementation complies with Freescale's standard BDM protocol defined in the HCS08 documentation.

Is the MC9S08GT16CFBER RoHS-compliant and lead-free?

Yes, the MC9S08GT16CFBER is RoHS-compliant and manufactured with lead-free terminations. The "F" suffix in the part number denotes lead-free packaging, and the device meets EU Directive 2011/65/EU requirements. The QFN package uses matte tin plating over copper leadframe, and all homogeneous materials have been verified against Annex II substance restrictions. MC9S08GT16CFBER's compliance documentation is available through NXP's official product change notices and material declarations.

What low-power modes are available on the MC9S08GT16CFBER?

The MC9S08GT16CFBER supports five low-power modes: Run, Wait, Stop1, Stop2, and Stop3. Stop3 draws ≤1 µA typical current and retains RAM and register contents while disabling all clocks except LPO. Wake-up sources include IRQ, LVD, RTI, and BDM activity. Each mode disables progressively more circuitry to optimize energy use - Stop3 is ideal for battery-backed applications requiring infrequent wake-up events. MC9S08GT16CFBER's power mode control is managed via SPMSC1/SPMSC2 registers per Chapter 5 of the datasheet.