MC9S08QG4CDTE

MC9S08QG4CDTE is an 8‑bit microcontroller from NXP’s HCS08/S08QG family. It uses the HCS08 core and includes on‑chip flash, RAM (and often EEPROM), plus a versatile peripheral set suitable for embedded control.
Key features (typical for QG devices):
- On‑chip memory: flash for program code, RAM for data, and optional EEPROM.
- Peripherals: serial communications (SCI/UART, SPI, I2C), ADC, timers, watchdog, and low‑power/power‑management modes.
- Wide operating voltage and clock options, designed for automotive and industrial applications with low power in mind.
The CDTE suffix denotes a specific package/temperature/leadframe variant; exact pin count, package type, voltage range, and memory sizes are variant‑dependent. For precise specs (flash size, RAM/EEPROM, package, temperature rating, timing), consult the MC9S08QG4CDTE datasheet and reference manual. Toolchain support includes CodeWarrior for HCS08 and other compatible 8‑bit toolchains.

Direct one-to-one equivalents outside the S08QG family don’t exist. Closest options within NXP are other S08QG/QE devices with similar peripherals but different flash sizes:
- MC9S08QG2 (2 KB)
- MC9S08QG4 (4 KB)
- MC9S08QG8 (8 KB)
- MC9S08QG16 (16 KB)
Packaging varies (CDTE is one option). For exact cross-reference and pin-compatible substitutes, use NXP’s cross-reference tool.

Here are the key features of the MC9S08QG4CDTE (NXP Freescale):
- 8-bit HCS08 CPU core, up to ~20 MHz operation
- On-chip memory: 4 KB Flash; 256 B RAM (no EEPROM)
- Peripherals:
- 8-channel 10-bit ADC
- Timers: multiple 8-bit and at least one 16-bit timer
- Analog comparator(s)
- Watchdog timer and power-on/low-voltage supervision
- Serial Communications: SCI/UART, SPI, and I2C two-wire interface
- Debug/Programming: Background Debug Mode (BDM) support
- Power modes: Run, Wait, Stop, HALT with fast wakeup
- Operating voltage: typically 1.8–5.5 V
- Temperature range: extended industrial (-40°C to +105°C)
- Package: CDTE variant (compact, suitable for small-footprint designs)
Note: exact periphery counts can vary by exact subfamily; this summarizes the typical features of MC9S08QG4 devices.

- Pin count: 44 pins (LQFP package, CDTE code).
- Function: 8-bit MC9S08QG4 family microcontroller with on-chip Flash and RAM, plus peripherals such as ADC, timers, SCI (UART), SPI, I2C, watchdog/low-power features for embedded control applications.

Manufacturer: NXP Semiconductors N.V.
What kind of company: A Dutch multinational semiconductor company that designs, manufactures, and sells integrated circuits and embedded processing solutions (microcontrollers, processors, sensors, etc.) for automotive, industrial, and consumer electronics markets.

MC9S08QG4CDTE is an 8‑bit MCU suitable for cost-sensitive, low‑power embedded control. Typical application areas include:
- Automotive body electronics and comfort modules
- Consumer electronics and home appliances
- Industrial sensing, data acquisition, and small automation
- Motor control for small DC motors and actuators
- Battery-powered handheld devices and wearables
- Instrumentation, meters, and data logging
- Embedded LCD/UI display controllers
It combines integrated peripherals (ADC, timers/PWM, serial interfaces, etc.) for compact, low-cost solutions across these domains.

LQFP64 — 64-pin quad-flat package (LQFP, RoHS-compliant).