NXP Semiconductors MC9S08GT16CFBE

Overview

MC9S08GT16CFBE 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 FLL-based clock generation, and targets cost-sensitive embedded control in automotive body electronics and industrial sensors.

For engineers reviewing the MC9S08GT16CFBE datasheet, MC9S08GT16CFBE pinout, MC9S08GT16CFBE application, or MC9S08GT16CFBE equivalent, key selection criteria include its 48-pin QFN package, 16 KB Flash/1 KB RAM memory map, FBE/FEE/FEI clock mode flexibility, 10-bit ATD with 8 channels, and background debug interface support.

Technical Context

The MC9S08GT16CFBE implements the HCS08 CPU core with 16-bit index register, 8-bit accumulator, and 5-cycle MOV instruction. Its Internal Clock Generator (ICG) supports multiple modes-FLL Bypassed External (FBE), FLL Engaged External (FEE), and FLL Engaged Internal (FEI)-enabling precise bus frequency derivation from external crystals (e.g., 32 kHz or 4 MHz) or internal reference.

Peripherals include a 10-bit Analog-to-Digital Converter (ATD) with 8 input channels and configurable sample time, two Timer/PWM modules (TPM1 and TPM2) supporting input capture, output compare, and edge-aligned PWM, plus dual serial interfaces: one SCI (UART) and one SPI, alongside I²C for multi-master communication.

Key Specifications

Pinout & Package

MC9S08GT16CFBE is housed in a 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined across Ports A–G, supporting multiplexed peripheral signals including BKGD/MS, SCI1/SCI2, SPI, I²C, TPM channels, ATD inputs, and KBI.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08AC128CPJ and S9KEAZ128AMLH, the MC9S08GT16CFBE offers optimal balance of cost, power efficiency, and peripheral integration for legacy-compatible, resource-constrained embedded control - especially where BDM debug, low-stop-current, and crystal-flexible clocking are critical.

Availability

MC9S08GT16CFBE is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart appliance UIs, and LED lighting controllers requiring stable component supply and long-term lifecycle support.

Supply support for MC9S08GT16CFBE 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 applications.

The MC9S08GT16CFBE belongs to the HCS08 microcontroller family, designed specifically for cost-sensitive, low-power embedded control in automotive body electronics and industrial automation systems.

FAQ

What is the maximum bus frequency supported by the MC9S08GT16CFBE?

The MC9S08GT16CFBE supports a maximum bus frequency of 40 MHz when operating in FLL Engaged External (FEE) mode using a 4 MHz crystal and FLL multiplication factor of 10. In FLL Bypassed External (FBE) mode with a 32 kHz crystal, the bus frequency is fixed at 4.194304 MHz. These values are confirmed in Section 7.3.4 and Table A-9 of the MC9S08GB/GT Data Sheet Rev. 2.3.

Does the MC9S08GT16CFBE include hardware debug capability?

Yes, the MC9S08GT16CFBE integrates a Background Debug Module (BDM) accessible via the PTG0 pin. This single-wire interface supports full-speed execution, breakpoint setting, memory inspection, and register read/write without halting real-time peripheral operation - essential for development and field diagnostics of the MC9S08GT16CFBE.

What ADC resolution and channel count does the MC9S08GT16CFBE provide?

The MC9S08GT16CFBE features a 10-bit Analog-to-Digital Converter (ATD) with 8 input channels (ATD0–ATD7), mapped directly to Port B pins PTA0–PTA7. Conversion time is programmable between 2 µs and 21 µs, and the module supports both single-ended and differential input modes as documented in Chapter 14 of the MC9S08GB/GT Data Sheet.

Which package type is used for the MC9S08GT16CFBE?

The MC9S08GT16CFBE uses a 48-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad, designated as "QFN48" in Freescale's ordering information (Appendix B). This package is explicitly listed for the MC9S08GT16 variant in Revision 2.2 of the MC9S08GB/GT Data Sheet.

Can the MC9S08GT16CFBE operate from a 32 kHz watch crystal?

Yes, the MC9S08GT16CFBE supports 32 kHz crystal operation in FLL Bypassed External (FBE) mode, delivering a precise 4.194304 MHz bus clock. This configuration is validated in Example #1 (Section 7.4.2) of the MC9S08GB/GT Data Sheet Rev. 2.3 and enables low-power, high-accuracy timing for RTC and sleep-mode wake-up in the MC9S08GT16CFBE.