NXP Semiconductors MC9S08GT60ACFBE

Overview

MC9S08GT60ACFBE from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 60 KB flash, 4 KB RAM, and a 20 MHz bus frequency in 48-pin QFN package. It integrates UART, SPI, I²C, 16-bit TPM timer/PWM, 12-bit ADC, and keyboard interrupt module. Designed for cost-sensitive industrial control and appliance applications requiring deterministic real-time response.

For engineers reviewing the MC9S08GT60ACFBE datasheet, MC9S08GT60ACFBE pinout, MC9S08GT60ACFBE application, or MC9S08GT60ACFBE equivalent, key selection criteria include flash endurance (100k erase/write cycles), low-power stop modes (down to 1.2 µA in Stop3), integrated LVD reset threshold (2.5 V ±0.1 V), and background debug interface support for in-circuit development.

Technical Context

The MC9S08GT60ACFBE implements the S08CPUV2 core with 16-bit index register, 8-bit accumulator, and 16-level hardware stack. Its internal clock generator supports FEE (FLL Engaged External), FBE (FLL Bypassed External), and FEI (FLL Engaged Internal) modes, enabling flexible clock sourcing from 32 kHz crystal or 4 MHz external oscillator.

Peripheral integration includes two SCI modules (SCI1/SCI2), one SPI, one I²C, two 16-bit TPMs with up to six PWM channels, and a 12-channel 12-bit ADC with 7 µs conversion time. All peripherals are memory-mapped and share a unified 64 KB address space with configurable vector redirection.

Key Specifications

Pinout & Package

MC9S08GT60ACFBE is housed in a 48-pin QFN (98ASA00466D) with 7 mm × 7 mm body, 0.5 mm pitch, and exposed thermal pad. The package supports copper-wire interconnect per Freescale QFN migration addendum Rev. 0 (July 2014).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08AC60CFUE, the MC9S08GT60ACFBE offers superior human-interface capability via KBI and higher ADC resolution; compared with S9KEAZN64ACLH, it delivers lower BOM cost and simpler certification path for legacy 8-bit designs.

Availability

MC9S08GT60ACFBE is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, smart lighting drivers, and point-of-sale peripherals requiring stable component supply across long-lifecycle production programs.

Supply support for MC9S08GT60ACFBE 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 Philips and Freescale.

The MC9S08GT60ACFBE belongs to the HCS08 family - a cost-optimized 8-bit MCU line designed for deterministic real-time control in resource-constrained embedded systems where code density and low power are critical.

FAQ

What is the maximum operating frequency of the MC9S08GT60ACFBE bus clock?

The MC9S08GT60ACFBE supports a maximum bus frequency of 20 MHz in FEE and FBE modes when HGO=0, as confirmed in Revision 2 (July 2008) of the MC9S08GB60A datasheet. This frequency defines instruction execution rate and peripheral timing resolution. The MC9S08GT60ACFBE achieves this using its internal clock generator with FLL engaged or bypassed, depending on external crystal or clock source configuration.

Does the MC9S08GT60ACFBE support in-circuit debugging without external hardware?

Yes, the MC9S08GT60ACFBE includes a single-wire Background Debug Mode (BDM) interface accessible via PTG0 pin. This allows full-speed halt, register read/write, memory inspection, and flash programming directly through the MC9S08GT60ACFBE's native debug protocol - no external JTAG emulator or additional debug headers required. The MC9S08GT60ACFBE implements the S08BDMV1 module compliant with Freescale's BDM specification.

What are the low-power stop modes supported by the MC9S08GT60ACFBE?

The MC9S08GT60ACFBE supports three stop modes: Stop1 (10 µA typical), Stop2 (3.5 µA typical with RAM retention), and Stop3 (1.2 µA typical with RAM loss). Wake sources include IRQ pin, LVD interrupt, RTI, and BDM activity. The MC9S08GT60ACFBE maintains peripheral clock gating and register state across Stop1/Stop2, enabling rapid resumption of real-time tasks after wake events.

Can the MC9S08GT60ACFBE perform analog-to-digital conversions during low-power operation?

Yes, the MC9S08GT60ACFBE's 12-bit ADC can operate in Run, Wait, and Stop1 modes. In Stop1, the ADC continues sampling using the internal reference and low-power clock source, allowing wake-on-completion for battery-sensitive applications. The MC9S08GT60ACFBE ADC supports hardware trigger synchronization with TPM timers and auto-scan across up to 12 channels without CPU intervention.

Is the MC9S08GT60ACFBE pin-compatible with other members of the GTxxA series?

Yes, the MC9S08GT60ACFBE shares identical 48-pin QFN (98ASA00466D) mechanical and electrical pinout with MC9S08GT32ACFBE and MC9S08GT16ACFBE. All GTxxA variants use the same port mapping, peripheral pin assignments, and power/ground layout - enabling hardware reuse across flash-size variants. The MC9S08GT60ACFBE differs only in flash capacity and associated security lock bits, not in physical interface behavior.