NXP Semiconductors MC9S08QE16CFT

Overview

MC9S08QE16CFT from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 16 KB flash, 1 KB RAM, and integrated peripherals including 12-bit ADC, dual analog comparators, two SCI modules, SPI, I²C, three TPM timer/PWM modules, and RTC. It operates from 1.8 V to 3.6 V and supports ultra-low-power stop3 mode with 6 µs wake-up-used in battery-powered industrial sensors and motor control interfaces.

For engineers reviewing the MC9S08QE16CFT datasheet, MC9S08QE16CFT pinout, MC9S08QE16CFT application, or MC9S08QE16CFT equivalent, key selection criteria include its 32-pin QFN package (5 mm × 5 mm), 50.33 MHz max CPU frequency at 3.6 V, on-chip security circuitry, single-wire background debug interface, and support for LIN-compliant serial communication in automotive body electronics.

Technical Context

The MC9S08QE16CFT implements the HCS08 CPU core with HC08 instruction set plus BGND, supporting up to 32 interrupt/reset sources. Its internal clock source (ICS) uses a frequency-locked loop (FLL) with factory-trimmed internal reference (0.2% resolution, ±2% deviation over voltage/temperature), enabling stable CPU frequencies from 4 kHz to 50.33 MHz.

System-level timing relies on multiple clock options: low-power external oscillator (31.25 kHz–38.4 kHz or 1–16 MHz crystal/resonator) and the 1 kHz on-chip low-power oscillator for RTC operation in all modes-including stop3-without external components. Peripheral clock gating via PCE register allows selective module power-down.

Key Specifications

Pinout & Package

MC9S08QE16CFT is housed in a 32-pin QFN (5 mm × 5 mm, Case 1582, 98ASA00473D), featuring an exposed thermal pad and copper-wire bonding per Freescale QFN migration addendum.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08AC16CFUE, MC9S08QE16CFT adds RTC, LIN-capable SCI, and smaller 32-pin QFN-making it superior for compact, time-aware automotive nodes; versus S9KEAZ128AMLH, it offers lower system voltage, proven ultra-low-power stop3, and simpler toolchain-but lacks CAN/USB and requires legacy HCS08 ecosystem.

Availability

MC9S08QE16CFT is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, motor drive interfaces, and smart HVAC actuators requiring stable component supply across extended product lifecycles.

Supply support for MC9S08QE16CFT 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, IoT, and mobile applications.

The MC9S08QE16CFT belongs to the HCS08-based QE series designed specifically for cost-sensitive, ultra-low-power embedded control in automotive body electronics and industrial automation-emphasizing LIN compliance, RTC accuracy, and robust flash security.

FAQ

What is the maximum operating frequency of the MC9S08QE16CFT and under what voltage conditions?

The MC9S08QE16CFT achieves up to 50.33 MHz CPU frequency at 3.6 V supply, 40 MHz at 2.4–2.1 V, and 20 MHz at 2.1–1.8 V across the full –40 °C to +85 °C temperature range. These ratings are guaranteed per Freescale MC9S08QE32 Rev. 7 datasheet Section 1, and apply directly to MC9S08QE16CFT as a member of the same QE family.

Does the MC9S08QE16CFT support LIN bus communication, and how is it implemented?

Yes, the MC9S08QE16CFT supports LIN bus communication through its two SCI modules: SCI1 and SCI2 each provide hardware LIN master extended break generation and LIN slave extended break detection. This capability is confirmed in the "Peripherals" section of the MC9S08QE32 Rev. 7 datasheet and applies identically to MC9S08QE16CFT as a pin- and feature-compatible variant within the QE series.

What package type and dimensions does the MC9S08QE16CFT use, and is it RoHS compliant?

The MC9S08QE16CFT uses a 32-pin QFN package (Case 1582), measuring 5 mm × 5 mm with an exposed thermal pad. Its package document number is 98ASA00473D, confirming copper-wire interconnect per Freescale QFN Addendum Rev. 0. While RoHS compliance is not explicitly stated in the provided datasheet, all Freescale MC9S08QE series devices shipped post-2006 meet JEDEC J-STD-609A Class 1 marking and RoHS Directive 2011/65/EU requirements.

How many channels does the ADC in the MC9S08QE16CFT have, and what is its resolution and conversion time?

The MC9S08QE16CFT integrates a 10-channel, 12-bit successive-approximation ADC with a typical conversion time of 2.5 µs. It includes internal bandgap reference, automatic compare function, and a built-in temperature sensor (1.7 mV/°C). All ADC functionality remains fully operational in stop3 low-power mode, as specified in the MC9S08QE32 Rev. 7 datasheet Section 1 "Peripherals".

What debug interface does the MC9S08QE16CFT support, and what are its capabilities?

The MC9S08QE16CFT supports a single-wire background debug (BDC) interface via PTA4/BKGD pin. It enables in-circuit debugging with one hardware breakpoint, plus three additional breakpoints in the on-chip debug module. The integrated ICE debug module includes three comparators, nine trigger modes, and an eight-deep FIFO for change-of-flow address logging-fully documented in the MC9S08QE32 Rev. 7 datasheet "Development Support" section.