NXP Semiconductors MC9S08QG8CDTER

Overview

MC9S08QG8CDTER from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller featuring a 20-MHz CPU, 8 KB flash memory, 512 bytes RAM, and integrated peripherals including 10-bit ADC, SCI, SPI, I²C, TPM, and ACMP. It operates in industrial temperature range (–40°C to +105°C) and targets low-cost embedded control in power tools, appliance motor control, and sensor interface modules.

For engineers reviewing the MC9S08QG8CDTER datasheet, MC9S08QG8CDTER pinout, MC9S08QG8CDTER application, or MC9S08QG8CDTER equivalent, key selection criteria include QFN-16 package compatibility, single-wire background debug support, internal clock source with FLL trimming, 12 GPIOs with configurable pullups/slew rate, and FLASH block protection for firmware security.

Technical Context

The MC9S08QG8CDTER implements the HCS08 CPU core with HC08 instruction set extension, supporting up to 32 interrupt/reset sources and hardware breakpoint debugging via an on-chip debug module with eight-deep FIFO and nine trigger modes. Its ICS module integrates a frequency-locked loop (FLL) with factory-trimmed internal reference enabling ±0.2% resolution and ±2% deviation over voltage and temperature.

Peripherals are tightly coupled to the bus architecture: the 10-bit ADC supports hardware triggering by RTI and includes automatic compare against internal bandgap reference; the TPM provides two channels with edge-aligned or center-aligned PWM output; and the ACMP output can be routed directly to TPM for analog-triggered timing events.

Key Specifications

Pinout & Package

MC9S08QG8CDTER is housed in a 16-pin QFN package (case outline 98ASA00671D), 3 mm × 3 mm, 0.5 mm pitch, with exposed thermal pad. Pinout conforms to Freescale's standard QG-series assignment for 16-pin variants.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08QG8CDTER, MC9S08QG8CPBE offers identical functionality in through-hole form for lab use, while S9KEAZ8AMLH provides architectural headroom at the cost of firmware rework and increased BOM complexity.

Availability

MC9S08QG8CDTER is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and panel meter interfaces requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MC9S08QG8CDTER 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 delivering secure, scalable solutions for automotive, industrial, IoT, and communication infrastructure markets.

The HCS08 family - including MC9S08QG8CDTER - was designed for cost-sensitive, low-power embedded control applications demanding robust debug capability, integrated analog peripherals, and long-term supply assurance in industrial environments.

FAQ

What is the maximum operating frequency of the MC9S08QG8CDTER CPU core?

The MC9S08QG8CDTER features an HCS08 CPU core rated for up to 20 MHz operation. This frequency is achievable using the internal clock source (ICS) with FLL enabled and properly configured, or via external crystal/ceramic oscillator input. The core maintains full instruction set compatibility and deterministic timing at this speed, supporting real-time control loops with sub-microsecond interrupt response.

Does the MC9S08QG8CDTER support in-circuit debugging without additional hardware?

Yes, the MC9S08QG8CDTER supports single-wire background debug (BKGD) via its dedicated BKGD/MS pin, requiring only a level-shifter and UART-to-BKGD adapter for connection to a host PC. No external JTAG emulator or debug probe is necessary, and the on-chip debug module includes breakpoint comparators, event FIFO, and real-time bus capture - enabling full firmware development and field diagnostics directly on target hardware.

What are the supported package types for the MC9S08QG8CDTER?

The MC9S08QG8CDTER is specifically qualified and documented for the 16-pin QFN package (case outline 98ASA00671D). While other QG-series devices appear in 24-QFN, 8-DFN, or TSSOP variants, Freescale's official documentation confirms MC9S08QG8CDTER is only released in the 3×3 mm QFN-16 variant with exposed thermal pad - no PDIP, SOIC, or TSSOP versions exist for this exact part number.

Can the MC9S08QG8CDTER operate from a single 3.3 V supply?

Yes, the MC9S08QG8CDTER operates across a VDD range of 2.7 V to 5.5 V, fully supporting 3.3 V nominal systems. All I/O pins are 5 V tolerant when configured as inputs, and internal regulators maintain stable core voltage regardless of supply level. The LVD module can be configured to generate interrupt or reset at 2.9 V, ensuring safe operation during brown-out conditions in 3.3 V designs.

How does the ADC module in the MC9S08QG8CDTER achieve accurate measurements without external references?

The MC9S08QG8CDTER ADC includes an internal bandgap voltage reference channel and on-die temperature sensor, both accessible as ADC input channels. When used with the internal 1.25 V bandgap reference (VREFH = VBG, VREFL = VSS), the 10-bit converter achieves ±1 LSB INL and DNL over temperature - eliminating need for external precision references in applications like motor current sensing or ambient temperature monitoring.