NXP Semiconductors MC9S08GT60CB

Overview

MC9S08GT60CB from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller with 60 KB Flash, 4 KB RAM, and integrated peripherals including SCI, SPI, I²C, TPM, ATD, and KBI - designed for cost-sensitive industrial control and automotive body electronics applications.

For engineers reviewing the MC9S08GT60CB datasheet, MC9S08GT60CB pinout, MC9S08GT60CB application, or MC9S08GT60CB equivalent, key selection criteria include its 48-pin LQFP package, 20 MHz bus frequency, on-chip ICG clock generator with FLL, low-voltage detect (LVD), and background debug mode (BDM) support.

Technical Context

The MC9S08GT60CB implements the HCS08 CPU core with 16-bit address space, 5-cycle MOV instruction, and register-based architecture featuring accumulator A, index register H:X, stack pointer SP, and condition code register CCR. It supports multiple power modes including Run, Wait, and three Stop variants with BDM active in Stop1/Stop2.

Its internal clock generator (ICG) provides four operational modes: FEI (FLL-engaged internal), FBE (FLL-bypassed external), FEE (FLL-engaged external), and SCM (self-clocked), enabling flexible clock source selection from 32 kHz crystal to 4 MHz oscillator with bus frequencies up to 20 MHz.

Key Specifications

Pinout & Package

MC9S08GT60CB is housed in a 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments are defined per Table 2-2 of Rev. 2.3 datasheet and validated for 48-pin QFN/LQFP variants across GB/GT family.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08GT60CB, MC9S08GB60CF trades debug flexibility for smaller footprint, while S9S08SG64E2MTJR offers identical functionality with enhanced ESD tolerance and guaranteed supply continuity - making it the recommended migration path for production ramp.

Availability

MC9S08GT60CB is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart HVAC controls, and consumer appliance motor drives requiring stable component supply and long-lifecycle support.

Supply support for MC9S08GT60CB 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 MC9S08GT60CB belongs to the HCS08 family - engineered for deterministic real-time control in resource-constrained embedded systems where low power, small footprint, and debug accessibility are essential.

FAQ

What is the maximum bus frequency supported by the MC9S08GT60CB?

The MC9S08GT60CB supports a maximum bus frequency of 20 MHz, achievable in FEE (FLL Engaged External) mode using a 4 MHz crystal input. This frequency governs instruction execution speed, peripheral timing, and communication baud rates. The internal ICG module ensures stable clock generation across voltage and temperature variations, and the value is confirmed in Section 7.3.5 and Table A-9 of the Rev. 2.3 datasheet.

Does the MC9S08GT60CB include an analog-to-digital converter?

Yes, the MC9S08GT60CB integrates a 10-bit Analog-to-Digital Converter (ATD) module with eight input channels mapped to Port B pins (PTB0–PTB7). It supports software and hardware triggering, configurable sample time, and conversion results stored in dedicated result registers. This ATD is fully documented in Chapter 14 of the MC9S08GB/GT Data Sheet, Rev. 2.3.

What debug interface does the MC9S08GT60CB use?

The MC9S08GT60CB uses Background Debug Mode (BDM) via the BKGD/MS pin (PTG0), supporting single-wire non-intrusive debugging, flash programming, and real-time register inspection. BDM remains active in Stop1 and Stop2 modes, enabling low-power development and field updates. This capability is specified in Sections 2.3.4, 3.4, 3.6.4, and Chapter 15 of the Rev. 2.3 datasheet.

Is the MC9S08GT60CB pin-compatible with other HCS08 devices like the MC9S08GT32?

No, the MC9S08GT60CB is not pin-compatible with MC9S08GT32 despite sharing the same 48-pin LQFP package. Differences in peripheral mapping - such as TPM channel assignments, ATD channel routing, and KBI pin availability - require PCB layout changes. Table 2-2 in the Rev. 2.3 datasheet confirms distinct pin functions between GT60 and GT32 variants within the 48-pin footprint.

What power supply voltage range does the MC9S08GT60CB operate within?

The MC9S08GT60CB operates across a supply voltage range of 2.7 V to 5.5 V, supporting both 3.3 V and 5 V system designs. Its Low-Voltage Detect (LVD) circuit provides configurable thresholds (2.5 V, 2.7 V, 2.9 V, 3.1 V) for reset or interrupt generation, ensuring robust behavior during brown-out conditions. These specifications are verified in Appendix A, Electrical Characteristics, of the Rev. 2.3 datasheet.