NXP Semiconductors MC9S08QE4CPG

Overview

MC9S08QE4CPG from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 4 KB flash, 256 B RAM, and integrated peripherals including 12-bit ADC, dual analog comparators, SPI/I²C/SCI interfaces, two 16-bit TPM modules, RTC, and low-power stop3 mode consuming 0.4 µA at 3 V. It operates from 1.8 V to 3.6 V across –40 °C to +85 °C and targets battery-powered sensor nodes and industrial control panels.

For engineers reviewing the MC9S08QE4CPG datasheet, MC9S08QE4CPG pinout, MC9S08QE4CPG application, or MC9S08QE4CPG equivalent, this page delivers verified technical context, package-validated pin functions, real-world use scenarios, and two confirmed alternative parts - all grounded in the official MC9S08QE8 Series Data Sheet Rev. 8 and QFN Addendum Rev. 0.

Technical Context

The MC9S08QE4CPG implements the HCS08 CPU core with BGND instruction support and handles up to 32 interrupt/reset sources. Its internal clock source (ICS) uses a frequency-locked loop (FLL) with factory-trimmed internal reference enabling ±2% bus frequency accuracy from 1 MHz to 10 MHz.

It integrates a 12-bit, 10-channel ADC with 2.5 µs conversion time, internal bandgap reference, temperature sensor (1.7 mV/°C), and operation in stop3 mode. Two analog comparators support edge-triggered interrupts and routing to TPM inputs, both functional in stop3.

Key Specifications

Pinout & Package

MC9S08QE4CPG is housed in a 32-pin QFN package (case number 98ASA00473D), 5 mm × 5 mm body with 0.5 mm pitch and thermally enhanced exposed pad for improved power dissipation and EMI performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08QE8CPG, the MC9S08QE4CPG offers identical peripheral integration and ultra-low-power behavior in a cost-optimized 4 KB flash variant; versus S9KEAZ128AMLH, it provides proven, minimal-footprint control with zero migration risk but lacks ARM ecosystem tooling and advanced peripherals.

Availability

MC9S08QE4CPG is available at Aetrix Electronics and suitable for smart sensor nodes, industrial HMI panels, portable medical devices, and battery-powered instrumentation requiring stable component supply and long-term manufacturability.

Supply support for MC9S08QE4CPG 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, energy-efficient solutions for automotive, industrial, IoT, and mobile applications.

The MC9S08QE4CPG belongs to the HCS08-based QE series designed specifically for cost-sensitive, ultra-low-power embedded control in space-constrained applications where flash density, sleep current, and debug simplicity are critical.

FAQ

What is the maximum operating frequency of the MC9S08QE4CPG?

The MC9S08QE4CPG supports a maximum CPU bus frequency of 20 MHz at 3.6 V within the –40 °C to +85 °C temperature range. Its internal clock source (ICS) with FLL achieves stable operation from 1 MHz to 10 MHz using the factory-trimmed internal reference, while external crystal or resonator options extend to 16 MHz via the XOSC circuit. The MC9S08QE4CPG does not require external clocking for basic operation due to its integrated ICS module.

Does the MC9S08QE4CPG support in-circuit debugging?

Yes, the MC9S08QE4CPG features a single-wire background debug interface (BDC) accessible via PTA4 (BKGD/MS pin), enabling full in-circuit programming, breakpoint setting, and real-time register/memory inspection without requiring additional debug headers or pins. The on-chip debug module includes two comparators, nine trigger modes, and an eight-deep FIFO for change-of-flow tracing - all fully functional on the MC9S08QE4CPG in its 32-pin QFN package.

What are the key low-power capabilities of the MC9S08QE4CPG?

The MC9S08QE4CPG delivers industry-leading low-power operation with three stop modes: Stop2 (0.3 µA typical), Stop3 (0.4 µA typical), and reduced-power wait mode. Its 1 kHz low-power oscillator (LPO) runs the RTC in Stop3 without external components, and peripheral clock gating allows selective module disablement. Wake-up from Stop3 occurs in 6 µs, making the MC9S08QE4CPG ideal for duty-cycled sensing applications where sub-µA quiescent current directly extends battery life.

Can the MC9S08QE4CPG ADC operate during low-power modes?

Yes, the 12-bit ADC on the MC9S08QE4CPG remains fully operational in Stop3 mode, enabling precise analog measurements without waking the CPU - critical for battery-powered systems. It supports automatic compare, internal bandgap reference, and a built-in temperature sensor (1.7 mV/°C). Conversion time is 2.5 µs, and the ADC can be triggered by TPM, SCI, or software, with results stored directly to RAM while the core remains asleep.

What package type and footprint does the MC9S08QE4CPG use?

The MC9S08QE4CPG is supplied exclusively in a 32-pin QFN package (case number 98ASA00473D), measuring 5 mm × 5 mm with 0.5 mm pitch and an exposed thermal pad. This RoHS-compliant package replaces earlier gold-wire variants with copper wire bonding per Freescale's QFN Addendum Rev. 0. The pinout matches the MC9S08QE8CPG, enabling shared PCB design across the QE4/QE8 family.