NXP Semiconductors MC9S08QG8CDNER

Overview

MC9S08QG8CDNER from Freescale Semiconductor 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, ACMP, and MTIM. It operates in industrial temperature range (–40°C to +105°C) and supports multiple low-power stop modes. Used in cost-sensitive embedded control applications such as appliance motor control and sensor interface modules.

For engineers reviewing the MC9S08QG8CDNER datasheet, MC9S08QG8CDNER pinout, MC9S08QG8CDNER application, or MC9S08QG8CDNER equivalent, key selection criteria include its 16-pin QFN package with exposed pad, single-wire background debug interface, internal clock source with FLL, FLASH block protection, and 12 GPIOs with configurable pullups/slew rate - all validated for automotive-grade reliability per Freescale's Rev. 5 datasheet (11/2009).

Technical Context

The MC9S08QG8CDNER implements the S08CPUV2 core with HC08 instruction set extension (including BGND), supporting up to 32 interrupt/reset sources and hardware breakpoint debugging via an on-chip debug module with two comparators and nine trigger modes. Its ICS module integrates a frequency-locked loop (FLL) with factory-trimmed internal reference (±0.2% resolution, ±2% deviation over voltage/temperature), enabling bus frequencies from 1 MHz to 10 MHz.

Peripherals are tightly coupled to the CPU: the 8-channel 10-bit ADC supports hardware triggering by RTI and includes automatic compare with internal bandgap reference; the ACMP output can be routed to TPM for event-driven timing; and the 2-channel TPM supports edge-aligned and center-aligned PWM with input capture capability - all operating under unified clock gating and power management control.

Key Specifications

Pinout & Package

MC9S08QG8CDNER is housed in a 16-pin QFN package (case outline 98ASA00671D) with 3 mm × 3 mm body, 0.5 mm lead pitch, and thermally enhanced exposed pad. The package supports reflow soldering per IPC/JEDEC J-STD-020 and requires controlled thermal relief for the pad per EB806 guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08QG8CDNER, MC9RS08KA2 sacrifices ADC/TPM for minimal size and cost, while MC9S08AC128 adds USB and memory headroom at the expense of pin count and power efficiency - making MC9S08QG8CDNER the optimal balance for mid-complexity embedded control with analog integration.

Availability

MC9S08QG8CDNER is available at Aetrix Electronics and suitable for appliance motor control, industrial sensor nodes, automotive body electronics, and smart power outlet designs requiring stable component supply across extended production lifecycles.

Supply support for MC9S08QG8CDNER 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

Freescale Semiconductor (now part of NXP Semiconductors since 2015) was a leading designer of embedded processors, analog, and mixed-signal ICs for automotive, industrial, and consumer markets.

The HCS08 family, including MC9S08QG8CDNER, was engineered for cost-sensitive, low-power 8-bit control applications demanding robust debug capability, integrated analog peripherals, and qualification for harsh environments.

FAQ

What is the maximum operating frequency of the MC9S08QG8CDNER CPU core?

The MC9S08QG8CDNER features a 20-MHz HCS08 CPU core. This maximum frequency is achievable when the internal clock source (ICS) is configured with the FLL enabled and properly trimmed, delivering a stable bus clock up to 10 MHz - sufficient for real-time control loops in motor drives and sensor processing. The MC9S08QG8CDNER datasheet (Rev. 5, 11/2009) confirms this rating across the full industrial temperature range (–40°C to +105°C) and supply voltage (2.7–5.5 V).

Does the MC9S08QG8CDNER support in-circuit debugging, and what interface is used?

Yes, the MC9S08QG8CDNER supports in-circuit debugging via a single-wire background debug (BDM) interface using the BKGD/MS pin. This interface enables full read/write access to memory and registers, hardware breakpoints, and real-time bus capture through on-chip emulation (ICE). No external debugger header is required - the MC9S08QG8CDNER integrates all debug logic internally, reducing PCB complexity and cost compared to multi-pin JTAG solutions.

What analog peripherals are integrated into the MC9S08QG8CDNER?

The MC9S08QG8CDNER integrates an 8-channel, 10-bit analog-to-digital converter (ADC) with internal bandgap reference, temperature sensor, and automatic compare function, plus an analog comparator (ACMP) with selectable internal reference and output routable to TPM. These peripherals allow the MC9S08QG8CDNER to perform sensor signal conditioning, thermal monitoring, and event-triggered timing - eliminating external ADCs or comparators in many embedded designs.

What power-saving modes does the MC9S08QG8CDNER offer, and how do they differ?

The MC9S08QG8CDNER offers Wait mode plus three Stop modes (Stop1, Stop2, Stop3). Stop3 disables all clocks except the 1-kHz COP clock, achieving sub-1 µA current draw. Stop2 retains RTC operation, while Stop1 maintains RAM retention with faster wake-up. All modes support wake-up via IRQ, KBI, or RTI - allowing the MC9S08QG8CDNER to optimize energy use in battery-powered applications like wireless sensor nodes without sacrificing responsiveness.

Is the MC9S08QG8CDNER pin-compatible with other members of the QG series, such as the MC9S08QG4?

No, the MC9S08QG8CDNER is not pin-compatible with the MC9S08QG4 despite sharing the same 16-pin QFN package (98ASA00671D). While both devices use identical mechanical outlines, their pin functions differ in key areas - notably PTA5 behavior (pullup default vs. no pullup) and register-level configuration of peripherals like ACMP and ADC. Firmware and hardware designed for MC9S08QG8CDNER require validation before deployment on MC9S08QG4, as the MC9S08QG8CDNER datasheet explicitly documents functional distinctions between variants.