NXP Semiconductors MC9S08QD2MPC

Overview

MC9S08QD2MPC from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller with 16 MHz CPU, 2048 bytes of on-chip Flash, and 128 bytes of RAM, designed for cost-sensitive embedded control in space-constrained applications such as small appliance motor control and sensor interface modules.

For engineers reviewing the MC9S08QD2MPC datasheet, MC9S08QD2MPC pinout, MC9S08QD2MPC application, or MC9S08QD2MPC equivalent, key selection criteria include its 8-pin SOIC package, single-wire background debug interface, internal clock source with FLL, 4-channel 10-bit ADC, and support for Wait/Stop2/Stop3 low-power modes.

Technical Context

The MC9S08QD2MPC implements the HCS08 CPU core with HC08 instruction set extension including BGND, supporting up to 32 interrupt/reset sources and single-wire background debugging with one hardware breakpoint plus two additional breakpoints in the on-chip debug module.

Its internal clock source (ICS) integrates a frequency-locked loop (FLL) with precision-trimmed internal reference (0.2% resolution, ±2% deviation over voltage and temperature), enabling stable bus clock generation without external crystals in many applications.

Key Specifications

Pinout & Package

MC9S08QD2MPC is housed in an 8-pin SOIC package (3.9 mm × 4.9 mm, 1.27 mm pitch), RoHS compliant, with thermal pad omitted. Pin functions are validated per Freescale MC9S08QD4 Series Data Sheet Rev. 7 (2022), Section 2.1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08QD2MPC, MC9S08QD4MPC provides double Flash/RAM for complex control algorithms, while S9S08QD2F1MPC adds AEC-Q100 qualification and extended temperature tolerance - both retain identical peripheral functionality and debug interface.

Availability

MC9S08QD2MPC is available at Aetrix Electronics and suitable for small appliance motor control, industrial sensor nodes, smart lighting dimmers, and consumer electronics remote interfaces requiring stable component supply and long-term production continuity.

Supply support for MC9S08QD2MPC 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, with roots in Freescale's embedded MCU heritage.

The MC9S08QD2MPC belongs to the HCS08 QD-series - a family of ultra-compact, low-cost 8-bit MCUs targeting space- and cost-constrained embedded control where minimal footprint and single-wire debug are critical.

FAQ

What is the maximum operating frequency of the MC9S08QD2MPC?

The MC9S08QD2MPC features an HCS08 CPU core rated for up to 16 MHz operation. This frequency is achieved using the internal clock source (ICS) with its frequency-locked loop (FLL), which can be configured to generate a stable bus clock without external timing components. The actual achievable frequency depends on supply voltage and temperature, but the device is fully specified across its operating range (2.7–5.5 V, −40 °C to 85 °C) at 16 MHz.

Does the MC9S08QD2MPC support in-circuit debugging?

Yes, the MC9S08QD2MPC includes a single-wire background debug (BDM) interface accessible via the BKGD/MS pin. It supports full in-circuit programming, real-time register inspection, and breakpoint-based debugging with one hardware breakpoint plus two additional breakpoints managed by the on-chip debug module. No external debugger hardware beyond a standard BDM pod is required.

What are the power supply requirements for the MC9S08QD2MPC?

The MC9S08QD2MPC operates from a single supply rail between 2.7 V and 5.5 V, compatible with common 3.3 V and 5 V systems. It integrates low-voltage detect (LVD) circuitry that can generate either a reset or interrupt when VDD falls below a programmable threshold, ensuring reliable operation during brownout conditions. Internal regulators power the core and analog blocks independently.

Can the MC9S08QD2MPC drive LEDs directly from its I/O pins?

Yes, the MC9S08QD2MPC's PTA5 pin is an output-only port capable of sourcing up to 10 mA, and general-purpose pins PTA0–PTA3 can each source/sink up to 10 mA (60 mA total package limit). This allows direct LED driving with appropriate current-limiting resistors. Software-selectable drive strength and slew rate control help minimize EMI during switching.

Is there an automotive-qualified version of the MC9S08QD2MPC?

Yes, the S9S08QD2F1MPC is the automotive-qualified counterpart to the MC9S08QD2MPC. It meets AEC-Q100 Grade 2 requirements (−40 °C to 105 °C ambient), includes enhanced ESD protection, and undergoes additional reliability testing. All peripherals, memory, and pinout are identical - only qualification level and temperature rating differ.