NXP Semiconductors MC9S08QG4CDTER

Overview

MC9S08QG4CDTER from Freescale Semiconductor is an 8-bit HCS08 microcontroller with 4 KB FLASH, 256 bytes RAM, 20-MHz CPU, internal clock source (FLL), and integrated peripherals including 10-bit ADC, analog comparator, SCI, SPI, I²C, TPM, and KBI. It targets cost-sensitive embedded control in appliance motor drives, sensor interfaces, and industrial timers.

For engineers reviewing the MC9S08QG4CDTER datasheet, MC9S08QG4CDTER pinout, MC9S08QG4CDTER application, or MC9S08QG4CDTER equivalent, key selection criteria include QFN-16 package compatibility, 12 GPIO + 1 input-only + 1 output-only pin count, 1.8–3.6 V operating voltage, on-chip background debug interface, and FLASH block protection for firmware security.

Technical Context

The MC9S08QG4CDTER implements the S08CPUV2 core with HC08 instruction set plus BGND, supporting single-wire background debugging and up to 32 interrupt/reset sources. Its ICS module integrates a frequency-locked loop (FLL) with precision-trimmed internal reference (±2% over temp/voltage) enabling bus frequencies from 1 MHz to 10 MHz.

Peripherals include an 8-channel 10-bit ADC with hardware trigger (RTI), temperature sensor, and internal bandgap reference; a programmable analog comparator with optional routing to TPM; and dual-channel TPM supporting edge-aligned and center-aligned PWM - all operable in Wait and Stop3 modes.

Key Specifications

Pinout & Package

MC9S08QG4CDTER is housed in a 16-pin quad flat no-lead (QFN) package with exposed thermal pad (98ASA00671D), measuring 4 mm × 4 mm × 0.85 mm, RoHS-compliant, and optimized for low-inductance ground connection via soldered EPAD.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08QG8CDTER, the MC9S08QG4CDTER trades FLASH/RAM capacity for lower unit cost and smaller footprint - ideal for fixed-function controllers where code size is stable and constrained. Versus S9KEAZ128AMLH, it offers proven 8-bit determinism and minimal layout change risk but lacks native USB/CAN and advanced power management.

Availability

MC9S08QG4CDTER is available at Aetrix Electronics and suitable for appliance motor control, industrial sensor nodes, smart power outlets, and LED lighting dimmers requiring stable component supply across multi-year production cycles.

Supply support for MC9S08QG4CDTER 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 was a leading designer of embedded processors, analog, and connectivity solutions before its acquisition by NXP Semiconductors in 2015.

The MC9S08QG4 belongs to the HCS08 family - a cost-optimized 8-bit MCU platform targeting resource-constrained industrial, consumer, and automotive body electronics applications with integrated analog peripherals and robust debug capability.

FAQ

What is the operating voltage range for the MC9S08QG4CDTER?

The MC9S08QG4CDTER operates from 1.8 V to 3.6 V over the full industrial temperature range (−40°C to +105°C). This wide supply range allows direct interfacing with both 3.3 V and 2.5 V systems and supports battery-powered designs using two alkaline or single Li-ion cells with appropriate regulation. The internal voltage regulator and LVD circuit ensure reliable reset behavior across this range.

Does the MC9S08QG4CDTER support in-circuit debugging?

Yes, the MC9S08QG4CDTER includes a single-wire background debug interface using the BKGD/MS pin. It supports real-time bus capture, breakpoint setting (one active tag breakpoint plus two force breakpoints), and on-chip emulation without halting system clocks. Debug sessions require only one signal plus ground, minimizing PCB routing overhead compared to JTAG solutions.

What package type is used for the MC9S08QG4CDTER?

The MC9S08QG4CDTER uses a 16-pin QFN package (case outline 98ASA00671D) with 4 mm × 4 mm body and exposed thermal pad. This RoHS-compliant package provides superior thermal dissipation and lower EMI versus SOIC or PDIP variants, and is compatible with standard reflow soldering processes. Pin pitch is 0.5 mm.

Can the MC9S08QG4CDTER generate PWM signals?

Yes, the MC9S08QG4CDTER includes a two-channel Timer/Pulse-Width Modulator (TPM) module. Each channel supports input capture, output compare, buffered edge-aligned PWM, and buffered center-aligned PWM - enabling precise motor control, LED dimming, and power supply feedback. PWM resolution is configurable up to 16 bits with independent duty cycle and period registers.

Is there an internal temperature sensor in the MC9S08QG4CDTER?

Yes, the MC9S08QG4CDTER integrates a factory-calibrated on-die temperature sensor accessible via the 10-bit ADC's internal bandgap reference channel. It provides ±3°C accuracy across −40°C to +105°C and requires no external components. This sensor is commonly used for thermal throttling, ambient monitoring, or self-test routines within the MC9S08QG4CDTER firmware.